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| author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-02-17 16:11:01 +0100 |
|---|---|---|
| committer | ftrapero <frantracer@gmail.com> | 2017-06-15 14:16:37 +0200 |
| commit | 209657f69055b17b00c3db3f99c7f411a6e8d176 (patch) | |
| tree | 8d6ae61dfda54305a712bded9caff9ee608abf4e /nx-X11/extras/Mesa/src/mesa/swrast | |
| parent | 459021c165c7023ee75f524060ca270985b547c1 (diff) | |
| download | nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.tar.gz nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.tar.bz2 nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.zip | |
nx-X11/extras/Mesa: Drop bundled Mesa, place a symlink to imported Git subtree of Mesa_6.4.1 instead.
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/swrast')
58 files changed, 0 insertions, 25632 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_aaline.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_aaline.c deleted file mode 100644 index 39c51a50f..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_aaline.c +++ /dev/null @@ -1,554 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "imports.h" -#include "macros.h" -#include "swrast/s_aaline.h" -#include "swrast/s_context.h" -#include "swrast/s_span.h" -#include "swrast/swrast.h" -#include "mtypes.h" - - -#define SUB_PIXEL 4 - - -/* - * Info about the AA line we're rendering - */ -struct LineInfo -{ - GLfloat x0, y0; /* start */ - GLfloat x1, y1; /* end */ - GLfloat dx, dy; /* direction vector */ - GLfloat len; /* length */ - GLfloat halfWidth; /* half of line width */ - GLfloat xAdj, yAdj; /* X and Y adjustment for quad corners around line */ - /* for coverage computation */ - GLfloat qx0, qy0; /* quad vertices */ - GLfloat qx1, qy1; - GLfloat qx2, qy2; - GLfloat qx3, qy3; - GLfloat ex0, ey0; /* quad edge vectors */ - GLfloat ex1, ey1; - GLfloat ex2, ey2; - GLfloat ex3, ey3; - - /* DO_Z */ - GLfloat zPlane[4]; - /* DO_FOG */ - GLfloat fPlane[4]; - /* DO_RGBA */ - GLfloat rPlane[4], gPlane[4], bPlane[4], aPlane[4]; - /* DO_INDEX */ - GLfloat iPlane[4]; - /* DO_SPEC */ - GLfloat srPlane[4], sgPlane[4], sbPlane[4]; - /* DO_TEX or DO_MULTITEX */ - GLfloat sPlane[MAX_TEXTURE_COORD_UNITS][4]; - GLfloat tPlane[MAX_TEXTURE_COORD_UNITS][4]; - GLfloat uPlane[MAX_TEXTURE_COORD_UNITS][4]; - GLfloat vPlane[MAX_TEXTURE_COORD_UNITS][4]; - GLfloat lambda[MAX_TEXTURE_COORD_UNITS]; - GLfloat texWidth[MAX_TEXTURE_COORD_UNITS]; - GLfloat texHeight[MAX_TEXTURE_COORD_UNITS]; - - struct sw_span span; -}; - - - -/* - * Compute the equation of a plane used to interpolate line fragment data - * such as color, Z, texture coords, etc. - * Input: (x0, y0) and (x1,y1) are the endpoints of the line. - * z0, and z1 are the end point values to interpolate. - * Output: plane - the plane equation. - * - * Note: we don't really have enough parameters to specify a plane. - * We take the endpoints of the line and compute a plane such that - * the cross product of the line vector and the plane normal is - * parallel to the projection plane. - */ -static void -compute_plane(GLfloat x0, GLfloat y0, GLfloat x1, GLfloat y1, - GLfloat z0, GLfloat z1, GLfloat plane[4]) -{ -#if 0 - /* original */ - const GLfloat px = x1 - x0; - const GLfloat py = y1 - y0; - const GLfloat pz = z1 - z0; - const GLfloat qx = -py; - const GLfloat qy = px; - const GLfloat qz = 0; - const GLfloat a = py * qz - pz * qy; - const GLfloat b = pz * qx - px * qz; - const GLfloat c = px * qy - py * qx; - const GLfloat d = -(a * x0 + b * y0 + c * z0); - plane[0] = a; - plane[1] = b; - plane[2] = c; - plane[3] = d; -#else - /* simplified */ - const GLfloat px = x1 - x0; - const GLfloat py = y1 - y0; - const GLfloat pz = z0 - z1; - const GLfloat a = pz * px; - const GLfloat b = pz * py; - const GLfloat c = px * px + py * py; - const GLfloat d = -(a * x0 + b * y0 + c * z0); - if (a == 0.0 && b == 0.0 && c == 0.0 && d == 0.0) { - plane[0] = 0.0; - plane[1] = 0.0; - plane[2] = 1.0; - plane[3] = 0.0; - } - else { - plane[0] = a; - plane[1] = b; - plane[2] = c; - plane[3] = d; - } -#endif -} - - -static INLINE void -constant_plane(GLfloat value, GLfloat plane[4]) -{ - plane[0] = 0.0; - plane[1] = 0.0; - plane[2] = -1.0; - plane[3] = value; -} - - -static INLINE GLfloat -solve_plane(GLfloat x, GLfloat y, const GLfloat plane[4]) -{ - const GLfloat z = (plane[3] + plane[0] * x + plane[1] * y) / -plane[2]; - return z; -} - -#define SOLVE_PLANE(X, Y, PLANE) \ - ((PLANE[3] + PLANE[0] * (X) + PLANE[1] * (Y)) / -PLANE[2]) - - -/* - * Return 1 / solve_plane(). - */ -static INLINE GLfloat -solve_plane_recip(GLfloat x, GLfloat y, const GLfloat plane[4]) -{ - const GLfloat denom = plane[3] + plane[0] * x + plane[1] * y; - if (denom == 0.0) - return 0.0; - else - return -plane[2] / denom; -} - - -/* - * Solve plane and return clamped GLchan value. - */ -static INLINE GLchan -solve_plane_chan(GLfloat x, GLfloat y, const GLfloat plane[4]) -{ - const GLfloat z = (plane[3] + plane[0] * x + plane[1] * y) / -plane[2]; -#if CHAN_TYPE == GL_FLOAT - return CLAMP(z, 0.0F, CHAN_MAXF); -#else - if (z < 0) - return 0; - else if (z > CHAN_MAX) - return CHAN_MAX; - return (GLchan) IROUND_POS(z); -#endif -} - - -/* - * Compute mipmap level of detail. - */ -static INLINE GLfloat -compute_lambda(const GLfloat sPlane[4], const GLfloat tPlane[4], - GLfloat invQ, GLfloat width, GLfloat height) -{ - GLfloat dudx = sPlane[0] / sPlane[2] * invQ * width; - GLfloat dudy = sPlane[1] / sPlane[2] * invQ * width; - GLfloat dvdx = tPlane[0] / tPlane[2] * invQ * height; - GLfloat dvdy = tPlane[1] / tPlane[2] * invQ * height; - GLfloat r1 = dudx * dudx + dudy * dudy; - GLfloat r2 = dvdx * dvdx + dvdy * dvdy; - GLfloat rho2 = r1 + r2; - /* return log base 2 of rho */ - if (rho2 == 0.0F) - return 0.0; - else - return (GLfloat) (log(rho2) * 1.442695 * 0.5);/* 1.442695 = 1/log(2) */ -} - - - - -/* - * Fill in the samples[] array with the (x,y) subpixel positions of - * xSamples * ySamples sample positions. - * Note that the four corner samples are put into the first four - * positions of the array. This allows us to optimize for the common - * case of all samples being inside the polygon. - */ -static void -make_sample_table(GLint xSamples, GLint ySamples, GLfloat samples[][2]) -{ - const GLfloat dx = 1.0F / (GLfloat) xSamples; - const GLfloat dy = 1.0F / (GLfloat) ySamples; - GLint x, y; - GLint i; - - i = 4; - for (x = 0; x < xSamples; x++) { - for (y = 0; y < ySamples; y++) { - GLint j; - if (x == 0 && y == 0) { - /* lower left */ - j = 0; - } - else if (x == xSamples - 1 && y == 0) { - /* lower right */ - j = 1; - } - else if (x == 0 && y == ySamples - 1) { - /* upper left */ - j = 2; - } - else if (x == xSamples - 1 && y == ySamples - 1) { - /* upper right */ - j = 3; - } - else { - j = i++; - } - samples[j][0] = x * dx + 0.5F * dx; - samples[j][1] = y * dy + 0.5F * dy; - } - } -} - - - -/* - * Compute how much of the given pixel's area is inside the rectangle - * defined by vertices v0, v1, v2, v3. - * Vertices MUST be specified in counter-clockwise order. - * Return: coverage in [0, 1]. - */ -static GLfloat -compute_coveragef(const struct LineInfo *info, - GLint winx, GLint winy) -{ - static GLfloat samples[SUB_PIXEL * SUB_PIXEL][2]; - static GLboolean haveSamples = GL_FALSE; - const GLfloat x = (GLfloat) winx; - const GLfloat y = (GLfloat) winy; - GLint stop = 4, i; - GLfloat insideCount = SUB_PIXEL * SUB_PIXEL; - - if (!haveSamples) { - make_sample_table(SUB_PIXEL, SUB_PIXEL, samples); - haveSamples = GL_TRUE; - } - -#if 0 /*DEBUG*/ - { - const GLfloat area = dx0 * dy1 - dx1 * dy0; - assert(area >= 0.0); - } -#endif - - for (i = 0; i < stop; i++) { - const GLfloat sx = x + samples[i][0]; - const GLfloat sy = y + samples[i][1]; - const GLfloat fx0 = sx - info->qx0; - const GLfloat fy0 = sy - info->qy0; - const GLfloat fx1 = sx - info->qx1; - const GLfloat fy1 = sy - info->qy1; - const GLfloat fx2 = sx - info->qx2; - const GLfloat fy2 = sy - info->qy2; - const GLfloat fx3 = sx - info->qx3; - const GLfloat fy3 = sy - info->qy3; - /* cross product determines if sample is inside or outside each edge */ - GLfloat cross0 = (info->ex0 * fy0 - info->ey0 * fx0); - GLfloat cross1 = (info->ex1 * fy1 - info->ey1 * fx1); - GLfloat cross2 = (info->ex2 * fy2 - info->ey2 * fx2); - GLfloat cross3 = (info->ex3 * fy3 - info->ey3 * fx3); - /* Check if the sample is exactly on an edge. If so, let cross be a - * positive or negative value depending on the direction of the edge. - */ - if (cross0 == 0.0F) - cross0 = info->ex0 + info->ey0; - if (cross1 == 0.0F) - cross1 = info->ex1 + info->ey1; - if (cross2 == 0.0F) - cross2 = info->ex2 + info->ey2; - if (cross3 == 0.0F) - cross3 = info->ex3 + info->ey3; - if (cross0 < 0.0F || cross1 < 0.0F || cross2 < 0.0F || cross3 < 0.0F) { - /* point is outside quadrilateral */ - insideCount -= 1.0F; - stop = SUB_PIXEL * SUB_PIXEL; - } - } - if (stop == 4) - return 1.0F; - else - return insideCount * (1.0F / (SUB_PIXEL * SUB_PIXEL)); -} - - -/** - * Compute coverage value for color index mode. - * XXX this may not be quite correct. - * \return coverage in [0,15]. - */ -static GLfloat -compute_coveragei(const struct LineInfo *info, - GLint winx, GLint winy) -{ - return compute_coveragef(info, winx, winy) * 15.0F; -} - - - -typedef void (*plot_func)(GLcontext *ctx, struct LineInfo *line, - int ix, int iy); - - - -/* - * Draw an AA line segment (called many times per line when stippling) - */ -static void -segment(GLcontext *ctx, - struct LineInfo *line, - plot_func plot, - GLfloat t0, GLfloat t1) -{ - const GLfloat absDx = (line->dx < 0.0F) ? -line->dx : line->dx; - const GLfloat absDy = (line->dy < 0.0F) ? -line->dy : line->dy; - /* compute the actual segment's endpoints */ - const GLfloat x0 = line->x0 + t0 * line->dx; - const GLfloat y0 = line->y0 + t0 * line->dy; - const GLfloat x1 = line->x0 + t1 * line->dx; - const GLfloat y1 = line->y0 + t1 * line->dy; - - /* compute vertices of the line-aligned quadrilateral */ - line->qx0 = x0 - line->yAdj; - line->qy0 = y0 + line->xAdj; - line->qx1 = x0 + line->yAdj; - line->qy1 = y0 - line->xAdj; - line->qx2 = x1 + line->yAdj; - line->qy2 = y1 - line->xAdj; - line->qx3 = x1 - line->yAdj; - line->qy3 = y1 + line->xAdj; - /* compute the quad's edge vectors (for coverage calc) */ - line->ex0 = line->qx1 - line->qx0; - line->ey0 = line->qy1 - line->qy0; - line->ex1 = line->qx2 - line->qx1; - line->ey1 = line->qy2 - line->qy1; - line->ex2 = line->qx3 - line->qx2; - line->ey2 = line->qy3 - line->qy2; - line->ex3 = line->qx0 - line->qx3; - line->ey3 = line->qy0 - line->qy3; - - if (absDx > absDy) { - /* X-major line */ - GLfloat dydx = line->dy / line->dx; - GLfloat xLeft, xRight, yBot, yTop; - GLint ix, ixRight; - if (x0 < x1) { - xLeft = x0 - line->halfWidth; - xRight = x1 + line->halfWidth; - if (line->dy >= 0.0) { - yBot = y0 - 3.0F * line->halfWidth; - yTop = y0 + line->halfWidth; - } - else { - yBot = y0 - line->halfWidth; - yTop = y0 + 3.0F * line->halfWidth; - } - } - else { - xLeft = x1 - line->halfWidth; - xRight = x0 + line->halfWidth; - if (line->dy <= 0.0) { - yBot = y1 - 3.0F * line->halfWidth; - yTop = y1 + line->halfWidth; - } - else { - yBot = y1 - line->halfWidth; - yTop = y1 + 3.0F * line->halfWidth; - } - } - - /* scan along the line, left-to-right */ - ixRight = (GLint) (xRight + 1.0F); - - /*printf("avg span height: %g\n", yTop - yBot);*/ - for (ix = (GLint) xLeft; ix < ixRight; ix++) { - const GLint iyBot = (GLint) yBot; - const GLint iyTop = (GLint) (yTop + 1.0F); - GLint iy; - /* scan across the line, bottom-to-top */ - for (iy = iyBot; iy < iyTop; iy++) { - (*plot)(ctx, line, ix, iy); - } - yBot += dydx; - yTop += dydx; - } - } - else { - /* Y-major line */ - GLfloat dxdy = line->dx / line->dy; - GLfloat yBot, yTop, xLeft, xRight; - GLint iy, iyTop; - if (y0 < y1) { - yBot = y0 - line->halfWidth; - yTop = y1 + line->halfWidth; - if (line->dx >= 0.0) { - xLeft = x0 - 3.0F * line->halfWidth; - xRight = x0 + line->halfWidth; - } - else { - xLeft = x0 - line->halfWidth; - xRight = x0 + 3.0F * line->halfWidth; - } - } - else { - yBot = y1 - line->halfWidth; - yTop = y0 + line->halfWidth; - if (line->dx <= 0.0) { - xLeft = x1 - 3.0F * line->halfWidth; - xRight = x1 + line->halfWidth; - } - else { - xLeft = x1 - line->halfWidth; - xRight = x1 + 3.0F * line->halfWidth; - } - } - - /* scan along the line, bottom-to-top */ - iyTop = (GLint) (yTop + 1.0F); - - /*printf("avg span width: %g\n", xRight - xLeft);*/ - for (iy = (GLint) yBot; iy < iyTop; iy++) { - const GLint ixLeft = (GLint) xLeft; - const GLint ixRight = (GLint) (xRight + 1.0F); - GLint ix; - /* scan across the line, left-to-right */ - for (ix = ixLeft; ix < ixRight; ix++) { - (*plot)(ctx, line, ix, iy); - } - xLeft += dxdy; - xRight += dxdy; - } - } -} - - -#define NAME(x) aa_ci_##x -#define DO_Z -#define DO_FOG -#define DO_INDEX -#include "s_aalinetemp.h" - - -#define NAME(x) aa_rgba_##x -#define DO_Z -#define DO_FOG -#define DO_RGBA -#include "s_aalinetemp.h" - - -#define NAME(x) aa_tex_rgba_##x -#define DO_Z -#define DO_FOG -#define DO_RGBA -#define DO_TEX -#include "s_aalinetemp.h" - - -#define NAME(x) aa_multitex_rgba_##x -#define DO_Z -#define DO_FOG -#define DO_RGBA -#define DO_MULTITEX -#include "s_aalinetemp.h" - - -#define NAME(x) aa_multitex_spec_##x -#define DO_Z -#define DO_FOG -#define DO_RGBA -#define DO_MULTITEX -#define DO_SPEC -#include "s_aalinetemp.h" - - - -void -_swrast_choose_aa_line_function(GLcontext *ctx) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - ASSERT(ctx->Line.SmoothFlag); - - if (ctx->Visual.rgbMode) { - /* RGBA */ - if (ctx->Texture._EnabledCoordUnits != 0) { - if (ctx->Texture._EnabledCoordUnits > 1) { - /* Multitextured! */ - if (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR || - ctx->Fog.ColorSumEnabled) - swrast->Line = aa_multitex_spec_line; - else - swrast->Line = aa_multitex_rgba_line; - } - else { - swrast->Line = aa_tex_rgba_line; - } - } - else { - swrast->Line = aa_rgba_line; - } - } - else { - /* Color Index */ - swrast->Line = aa_ci_line; - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_aaline.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_aaline.h deleted file mode 100644 index 41e7e5fd4..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_aaline.h +++ /dev/null @@ -1,39 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_AALINE_H -#define S_AALINE_H - - -#include "mtypes.h" -#include "swrast.h" - - -extern void -_swrast_choose_aa_line_function(GLcontext *ctx); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_aalinetemp.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_aalinetemp.h deleted file mode 100644 index 4a1e1ebda..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_aalinetemp.h +++ /dev/null @@ -1,329 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * Antialiased line template. - */ - - -/* - * Function to render each fragment in the AA line. - * \param ix - integer fragment window X coordiante - * \param iy - integer fragment window Y coordiante - */ -static void -NAME(plot)(GLcontext *ctx, struct LineInfo *line, int ix, int iy) -{ - const GLfloat fx = (GLfloat) ix; - const GLfloat fy = (GLfloat) iy; -#ifdef DO_INDEX - const GLfloat coverage = compute_coveragei(line, ix, iy); -#else - const GLfloat coverage = compute_coveragef(line, ix, iy); -#endif - const GLuint i = line->span.end; - - if (coverage == 0.0) - return; - - line->span.end++; - line->span.array->coverage[i] = coverage; - line->span.array->x[i] = ix; - line->span.array->y[i] = iy; - - /* - * Compute Z, color, texture coords, fog for the fragment by - * solving the plane equations at (ix,iy). - */ -#ifdef DO_Z - line->span.array->z[i] = (GLdepth) IROUND(solve_plane(fx, fy, line->zPlane)); -#endif -#ifdef DO_FOG - line->span.array->fog[i] = solve_plane(fx, fy, line->fPlane); -#endif -#ifdef DO_RGBA - line->span.array->rgba[i][RCOMP] = solve_plane_chan(fx, fy, line->rPlane); - line->span.array->rgba[i][GCOMP] = solve_plane_chan(fx, fy, line->gPlane); - line->span.array->rgba[i][BCOMP] = solve_plane_chan(fx, fy, line->bPlane); - line->span.array->rgba[i][ACOMP] = solve_plane_chan(fx, fy, line->aPlane); -#endif -#ifdef DO_INDEX - line->span.array->index[i] = (GLint) solve_plane(fx, fy, line->iPlane); -#endif -#ifdef DO_SPEC - line->span.array->spec[i][RCOMP] = solve_plane_chan(fx, fy, line->srPlane); - line->span.array->spec[i][GCOMP] = solve_plane_chan(fx, fy, line->sgPlane); - line->span.array->spec[i][BCOMP] = solve_plane_chan(fx, fy, line->sbPlane); -#endif -#ifdef DO_TEX - { - GLfloat invQ; - if (ctx->FragmentProgram._Active) { - invQ = 1.0F; - } - else { - invQ = solve_plane_recip(fx, fy, line->vPlane[0]); - } - line->span.array->texcoords[0][i][0] = solve_plane(fx, fy, line->sPlane[0]) * invQ; - line->span.array->texcoords[0][i][1] = solve_plane(fx, fy, line->tPlane[0]) * invQ; - line->span.array->texcoords[0][i][2] = solve_plane(fx, fy, line->uPlane[0]) * invQ; - line->span.array->lambda[0][i] = compute_lambda(line->sPlane[0], - line->tPlane[0], invQ, - line->texWidth[0], - line->texHeight[0]); - } -#elif defined(DO_MULTITEX) - { - GLuint unit; - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { - if (ctx->Texture.Unit[unit]._ReallyEnabled) { - GLfloat invQ; - if (ctx->FragmentProgram._Active) { - invQ = 1.0F; - } - else { - invQ = solve_plane_recip(fx, fy, line->vPlane[unit]); - } - line->span.array->texcoords[unit][i][0] = solve_plane(fx, fy, line->sPlane[unit]) * invQ; - line->span.array->texcoords[unit][i][1] = solve_plane(fx, fy, line->tPlane[unit]) * invQ; - line->span.array->texcoords[unit][i][2] = solve_plane(fx, fy, line->uPlane[unit]) * invQ; - line->span.array->lambda[unit][i] = compute_lambda(line->sPlane[unit], - line->tPlane[unit], invQ, - line->texWidth[unit], line->texHeight[unit]); - } - } - } -#endif - - if (line->span.end == MAX_WIDTH) { -#if defined(DO_RGBA) - _swrast_write_rgba_span(ctx, &(line->span)); -#else - _swrast_write_index_span(ctx, &(line->span)); -#endif - line->span.end = 0; /* reset counter */ - } -} - - - -/* - * Line setup - */ -static void -NAME(line)(GLcontext *ctx, const SWvertex *v0, const SWvertex *v1) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLfloat tStart, tEnd; /* segment start, end along line length */ - GLboolean inSegment; - GLint iLen, i; - - /* Init the LineInfo struct */ - struct LineInfo line; - line.x0 = v0->win[0]; - line.y0 = v0->win[1]; - line.x1 = v1->win[0]; - line.y1 = v1->win[1]; - line.dx = line.x1 - line.x0; - line.dy = line.y1 - line.y0; - line.len = SQRTF(line.dx * line.dx + line.dy * line.dy); - line.halfWidth = 0.5F * ctx->Line._Width; - - if (line.len == 0.0 || IS_INF_OR_NAN(line.len)) - return; - - INIT_SPAN(line.span, GL_LINE, 0, 0, SPAN_XY | SPAN_COVERAGE); - - line.xAdj = line.dx / line.len * line.halfWidth; - line.yAdj = line.dy / line.len * line.halfWidth; - -#ifdef DO_Z - line.span.arrayMask |= SPAN_Z; - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->win[2], v1->win[2], line.zPlane); -#endif -#ifdef DO_FOG - line.span.arrayMask |= SPAN_FOG; - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->fog, v1->fog, line.fPlane); -#endif -#ifdef DO_RGBA - line.span.arrayMask |= SPAN_RGBA; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->color[RCOMP], v1->color[RCOMP], line.rPlane); - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->color[GCOMP], v1->color[GCOMP], line.gPlane); - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->color[BCOMP], v1->color[BCOMP], line.bPlane); - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->color[ACOMP], v1->color[ACOMP], line.aPlane); - } - else { - constant_plane(v1->color[RCOMP], line.rPlane); - constant_plane(v1->color[GCOMP], line.gPlane); - constant_plane(v1->color[BCOMP], line.bPlane); - constant_plane(v1->color[ACOMP], line.aPlane); - } -#endif -#ifdef DO_SPEC - line.span.arrayMask |= SPAN_SPEC; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->specular[RCOMP], v1->specular[RCOMP], line.srPlane); - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->specular[GCOMP], v1->specular[GCOMP], line.sgPlane); - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->specular[BCOMP], v1->specular[BCOMP], line.sbPlane); - } - else { - constant_plane(v1->specular[RCOMP], line.srPlane); - constant_plane(v1->specular[GCOMP], line.sgPlane); - constant_plane(v1->specular[BCOMP], line.sbPlane); - } -#endif -#ifdef DO_INDEX - line.span.arrayMask |= SPAN_INDEX; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - compute_plane(line.x0, line.y0, line.x1, line.y1, - v0->index, v1->index, line.iPlane); - } - else { - constant_plane(v1->index, line.iPlane); - } -#endif -#ifdef DO_TEX - { - const struct gl_texture_object *obj = ctx->Texture.Unit[0]._Current; - const struct gl_texture_image *texImage = obj->Image[0][obj->BaseLevel]; - const GLfloat invW0 = v0->win[3]; - const GLfloat invW1 = v1->win[3]; - const GLfloat s0 = v0->texcoord[0][0] * invW0; - const GLfloat s1 = v1->texcoord[0][0] * invW1; - const GLfloat t0 = v0->texcoord[0][1] * invW0; - const GLfloat t1 = v1->texcoord[0][1] * invW1; - const GLfloat r0 = v0->texcoord[0][2] * invW0; - const GLfloat r1 = v1->texcoord[0][2] * invW1; - const GLfloat q0 = v0->texcoord[0][3] * invW0; - const GLfloat q1 = v1->texcoord[0][3] * invW1; - line.span.arrayMask |= (SPAN_TEXTURE | SPAN_LAMBDA); - compute_plane(line.x0, line.y0, line.x1, line.y1, s0, s1, line.sPlane[0]); - compute_plane(line.x0, line.y0, line.x1, line.y1, t0, t1, line.tPlane[0]); - compute_plane(line.x0, line.y0, line.x1, line.y1, r0, r1, line.uPlane[0]); - compute_plane(line.x0, line.y0, line.x1, line.y1, q0, q1, line.vPlane[0]); - line.texWidth[0] = (GLfloat) texImage->Width; - line.texHeight[0] = (GLfloat) texImage->Height; - } -#elif defined(DO_MULTITEX) - { - GLuint u; - line.span.arrayMask |= (SPAN_TEXTURE | SPAN_LAMBDA); - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture.Unit[u]._ReallyEnabled) { - const struct gl_texture_object *obj = ctx->Texture.Unit[u]._Current; - const struct gl_texture_image *texImage = obj->Image[0][obj->BaseLevel]; - const GLfloat invW0 = v0->win[3]; - const GLfloat invW1 = v1->win[3]; - const GLfloat s0 = v0->texcoord[u][0] * invW0; - const GLfloat s1 = v1->texcoord[u][0] * invW1; - const GLfloat t0 = v0->texcoord[u][1] * invW0; - const GLfloat t1 = v1->texcoord[u][1] * invW1; - const GLfloat r0 = v0->texcoord[u][2] * invW0; - const GLfloat r1 = v1->texcoord[u][2] * invW1; - const GLfloat q0 = v0->texcoord[u][3] * invW0; - const GLfloat q1 = v1->texcoord[u][3] * invW1; - compute_plane(line.x0, line.y0, line.x1, line.y1, s0, s1, line.sPlane[u]); - compute_plane(line.x0, line.y0, line.x1, line.y1, t0, t1, line.tPlane[u]); - compute_plane(line.x0, line.y0, line.x1, line.y1, r0, r1, line.uPlane[u]); - compute_plane(line.x0, line.y0, line.x1, line.y1, q0, q1, line.vPlane[u]); - line.texWidth[u] = (GLfloat) texImage->Width; - line.texHeight[u] = (GLfloat) texImage->Height; - } - } - } -#endif - - tStart = tEnd = 0.0; - inSegment = GL_FALSE; - iLen = (GLint) line.len; - - if (ctx->Line.StippleFlag) { - for (i = 0; i < iLen; i++) { - const GLuint bit = (swrast->StippleCounter / ctx->Line.StippleFactor) & 0xf; - if ((1 << bit) & ctx->Line.StipplePattern) { - /* stipple bit is on */ - const GLfloat t = (GLfloat) i / (GLfloat) line.len; - if (!inSegment) { - /* start new segment */ - inSegment = GL_TRUE; - tStart = t; - } - else { - /* still in the segment, extend it */ - tEnd = t; - } - } - else { - /* stipple bit is off */ - if (inSegment && (tEnd > tStart)) { - /* draw the segment */ - segment(ctx, &line, NAME(plot), tStart, tEnd); - inSegment = GL_FALSE; - } - else { - /* still between segments, do nothing */ - } - } - swrast->StippleCounter++; - } - - if (inSegment) { - /* draw the final segment of the line */ - segment(ctx, &line, NAME(plot), tStart, 1.0F); - } - } - else { - /* non-stippled */ - segment(ctx, &line, NAME(plot), 0.0, 1.0); - } - -#if defined(DO_RGBA) - _swrast_write_rgba_span(ctx, &(line.span)); -#else - _swrast_write_index_span(ctx, &(line.span)); -#endif -} - - - - -#undef DO_Z -#undef DO_FOG -#undef DO_RGBA -#undef DO_INDEX -#undef DO_SPEC -#undef DO_TEX -#undef DO_MULTITEX -#undef NAME diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_aatriangle.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_aatriangle.c deleted file mode 100644 index 5509f34c9..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_aatriangle.c +++ /dev/null @@ -1,495 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * Antialiased Triangle rasterizers - */ - - -#include "glheader.h" -#include "context.h" -#include "colormac.h" -#include "context.h" -#include "macros.h" -#include "imports.h" -#include "nvfragprog.h" -#include "s_aatriangle.h" -#include "s_context.h" -#include "s_span.h" - - -/* - * Compute coefficients of a plane using the X,Y coords of the v0, v1, v2 - * vertices and the given Z values. - * A point (x,y,z) lies on plane iff a*x+b*y+c*z+d = 0. - */ -static INLINE void -compute_plane(const GLfloat v0[], const GLfloat v1[], const GLfloat v2[], - GLfloat z0, GLfloat z1, GLfloat z2, GLfloat plane[4]) -{ - const GLfloat px = v1[0] - v0[0]; - const GLfloat py = v1[1] - v0[1]; - const GLfloat pz = z1 - z0; - - const GLfloat qx = v2[0] - v0[0]; - const GLfloat qy = v2[1] - v0[1]; - const GLfloat qz = z2 - z0; - - /* Crossproduct "(a,b,c):= dv1 x dv2" is orthogonal to plane. */ - const GLfloat a = py * qz - pz * qy; - const GLfloat b = pz * qx - px * qz; - const GLfloat c = px * qy - py * qx; - /* Point on the plane = "r*(a,b,c) + w", with fixed "r" depending - on the distance of plane from origin and arbitrary "w" parallel - to the plane. */ - /* The scalar product "(r*(a,b,c)+w)*(a,b,c)" is "r*(a^2+b^2+c^2)", - which is equal to "-d" below. */ - const GLfloat d = -(a * v0[0] + b * v0[1] + c * z0); - - plane[0] = a; - plane[1] = b; - plane[2] = c; - plane[3] = d; -} - - -/* - * Compute coefficients of a plane with a constant Z value. - */ -static INLINE void -constant_plane(GLfloat value, GLfloat plane[4]) -{ - plane[0] = 0.0; - plane[1] = 0.0; - plane[2] = -1.0; - plane[3] = value; -} - -#define CONSTANT_PLANE(VALUE, PLANE) \ -do { \ - PLANE[0] = 0.0F; \ - PLANE[1] = 0.0F; \ - PLANE[2] = -1.0F; \ - PLANE[3] = VALUE; \ -} while (0) - - - -/* - * Solve plane equation for Z at (X,Y). - */ -static INLINE GLfloat -solve_plane(GLfloat x, GLfloat y, const GLfloat plane[4]) -{ - ASSERT(plane[2] != 0.0F); - return (plane[3] + plane[0] * x + plane[1] * y) / -plane[2]; -} - - -#define SOLVE_PLANE(X, Y, PLANE) \ - ((PLANE[3] + PLANE[0] * (X) + PLANE[1] * (Y)) / -PLANE[2]) - - -/* - * Return 1 / solve_plane(). - */ -static INLINE GLfloat -solve_plane_recip(GLfloat x, GLfloat y, const GLfloat plane[4]) -{ - const GLfloat denom = plane[3] + plane[0] * x + plane[1] * y; - if (denom == 0.0F) - return 0.0F; - else - return -plane[2] / denom; -} - - -/* - * Solve plane and return clamped GLchan value. - */ -static INLINE GLchan -solve_plane_chan(GLfloat x, GLfloat y, const GLfloat plane[4]) -{ - const GLfloat z = (plane[3] + plane[0] * x + plane[1] * y) / -plane[2]; -#if CHAN_TYPE == GL_FLOAT - return CLAMP(z, 0.0F, CHAN_MAXF); -#else - if (z < 0) - return 0; - else if (z > CHAN_MAX) - return CHAN_MAX; - return (GLchan) IROUND_POS(z); -#endif -} - - - -/* - * Compute how much (area) of the given pixel is inside the triangle. - * Vertices MUST be specified in counter-clockwise order. - * Return: coverage in [0, 1]. - */ -static GLfloat -compute_coveragef(const GLfloat v0[3], const GLfloat v1[3], - const GLfloat v2[3], GLint winx, GLint winy) -{ - /* Given a position [0,3]x[0,3] return the sub-pixel sample position. - * Contributed by Ray Tice. - * - * Jitter sample positions - - * - average should be .5 in x & y for each column - * - each of the 16 rows and columns should be used once - * - the rectangle formed by the first four points - * should contain the other points - * - the distrubition should be fairly even in any given direction - * - * The pattern drawn below isn't optimal, but it's better than a regular - * grid. In the drawing, the center of each subpixel is surrounded by - * four dots. The "x" marks the jittered position relative to the - * subpixel center. - */ -#define POS(a, b) (0.5+a*4+b)/16 - static const GLfloat samples[16][2] = { - /* start with the four corners */ - { POS(0, 2), POS(0, 0) }, - { POS(3, 3), POS(0, 2) }, - { POS(0, 0), POS(3, 1) }, - { POS(3, 1), POS(3, 3) }, - /* continue with interior samples */ - { POS(1, 1), POS(0, 1) }, - { POS(2, 0), POS(0, 3) }, - { POS(0, 3), POS(1, 3) }, - { POS(1, 2), POS(1, 0) }, - { POS(2, 3), POS(1, 2) }, - { POS(3, 2), POS(1, 1) }, - { POS(0, 1), POS(2, 2) }, - { POS(1, 0), POS(2, 1) }, - { POS(2, 1), POS(2, 3) }, - { POS(3, 0), POS(2, 0) }, - { POS(1, 3), POS(3, 0) }, - { POS(2, 2), POS(3, 2) } - }; - - const GLfloat x = (GLfloat) winx; - const GLfloat y = (GLfloat) winy; - const GLfloat dx0 = v1[0] - v0[0]; - const GLfloat dy0 = v1[1] - v0[1]; - const GLfloat dx1 = v2[0] - v1[0]; - const GLfloat dy1 = v2[1] - v1[1]; - const GLfloat dx2 = v0[0] - v2[0]; - const GLfloat dy2 = v0[1] - v2[1]; - GLint stop = 4, i; - GLfloat insideCount = 16.0F; - -#ifdef DEBUG - { - const GLfloat area = dx0 * dy1 - dx1 * dy0; - ASSERT(area >= 0.0); - } -#endif - - for (i = 0; i < stop; i++) { - const GLfloat sx = x + samples[i][0]; - const GLfloat sy = y + samples[i][1]; - /* cross product determines if sample is inside or outside each edge */ - GLfloat cross = (dx0 * (sy - v0[1]) - dy0 * (sx - v0[0])); - /* Check if the sample is exactly on an edge. If so, let cross be a - * positive or negative value depending on the direction of the edge. - */ - if (cross == 0.0F) - cross = dx0 + dy0; - if (cross < 0.0F) { - /* sample point is outside first edge */ - insideCount -= 1.0F; - stop = 16; - } - else { - /* sample point is inside first edge */ - cross = (dx1 * (sy - v1[1]) - dy1 * (sx - v1[0])); - if (cross == 0.0F) - cross = dx1 + dy1; - if (cross < 0.0F) { - /* sample point is outside second edge */ - insideCount -= 1.0F; - stop = 16; - } - else { - /* sample point is inside first and second edges */ - cross = (dx2 * (sy - v2[1]) - dy2 * (sx - v2[0])); - if (cross == 0.0F) - cross = dx2 + dy2; - if (cross < 0.0F) { - /* sample point is outside third edge */ - insideCount -= 1.0F; - stop = 16; - } - } - } - } - if (stop == 4) - return 1.0F; - else - return insideCount * (1.0F / 16.0F); -} - - - -/* - * Compute how much (area) of the given pixel is inside the triangle. - * Vertices MUST be specified in counter-clockwise order. - * Return: coverage in [0, 15]. - */ -static GLint -compute_coveragei(const GLfloat v0[3], const GLfloat v1[3], - const GLfloat v2[3], GLint winx, GLint winy) -{ - /* NOTE: 15 samples instead of 16. */ - static const GLfloat samples[15][2] = { - /* start with the four corners */ - { POS(0, 2), POS(0, 0) }, - { POS(3, 3), POS(0, 2) }, - { POS(0, 0), POS(3, 1) }, - { POS(3, 1), POS(3, 3) }, - /* continue with interior samples */ - { POS(1, 1), POS(0, 1) }, - { POS(2, 0), POS(0, 3) }, - { POS(0, 3), POS(1, 3) }, - { POS(1, 2), POS(1, 0) }, - { POS(2, 3), POS(1, 2) }, - { POS(3, 2), POS(1, 1) }, - { POS(0, 1), POS(2, 2) }, - { POS(1, 0), POS(2, 1) }, - { POS(2, 1), POS(2, 3) }, - { POS(3, 0), POS(2, 0) }, - { POS(1, 3), POS(3, 0) } - }; - const GLfloat x = (GLfloat) winx; - const GLfloat y = (GLfloat) winy; - const GLfloat dx0 = v1[0] - v0[0]; - const GLfloat dy0 = v1[1] - v0[1]; - const GLfloat dx1 = v2[0] - v1[0]; - const GLfloat dy1 = v2[1] - v1[1]; - const GLfloat dx2 = v0[0] - v2[0]; - const GLfloat dy2 = v0[1] - v2[1]; - GLint stop = 4, i; - GLint insideCount = 15; - -#ifdef DEBUG - { - const GLfloat area = dx0 * dy1 - dx1 * dy0; - ASSERT(area >= 0.0); - } -#endif - - for (i = 0; i < stop; i++) { - const GLfloat sx = x + samples[i][0]; - const GLfloat sy = y + samples[i][1]; - const GLfloat fx0 = sx - v0[0]; - const GLfloat fy0 = sy - v0[1]; - const GLfloat fx1 = sx - v1[0]; - const GLfloat fy1 = sy - v1[1]; - const GLfloat fx2 = sx - v2[0]; - const GLfloat fy2 = sy - v2[1]; - /* cross product determines if sample is inside or outside each edge */ - GLfloat cross0 = (dx0 * fy0 - dy0 * fx0); - GLfloat cross1 = (dx1 * fy1 - dy1 * fx1); - GLfloat cross2 = (dx2 * fy2 - dy2 * fx2); - /* Check if the sample is exactly on an edge. If so, let cross be a - * positive or negative value depending on the direction of the edge. - */ - if (cross0 == 0.0F) - cross0 = dx0 + dy0; - if (cross1 == 0.0F) - cross1 = dx1 + dy1; - if (cross2 == 0.0F) - cross2 = dx2 + dy2; - if (cross0 < 0.0F || cross1 < 0.0F || cross2 < 0.0F) { - /* point is outside triangle */ - insideCount--; - stop = 15; - } - } - if (stop == 4) - return 15; - else - return insideCount; -} - - - -static void -rgba_aa_tri(GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ -#define DO_Z -#define DO_FOG -#define DO_RGBA -#include "s_aatritemp.h" -} - - -static void -index_aa_tri(GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ -#define DO_Z -#define DO_FOG -#define DO_INDEX -#include "s_aatritemp.h" -} - - -/* - * Compute mipmap level of detail. - * XXX we should really include the R coordinate in this computation - * in order to do 3-D texture mipmapping. - */ -static INLINE GLfloat -compute_lambda(const GLfloat sPlane[4], const GLfloat tPlane[4], - const GLfloat qPlane[4], GLfloat cx, GLfloat cy, - GLfloat invQ, GLfloat texWidth, GLfloat texHeight) -{ - const GLfloat s = solve_plane(cx, cy, sPlane); - const GLfloat t = solve_plane(cx, cy, tPlane); - const GLfloat invQ_x1 = solve_plane_recip(cx+1.0F, cy, qPlane); - const GLfloat invQ_y1 = solve_plane_recip(cx, cy+1.0F, qPlane); - const GLfloat s_x1 = s - sPlane[0] / sPlane[2]; - const GLfloat s_y1 = s - sPlane[1] / sPlane[2]; - const GLfloat t_x1 = t - tPlane[0] / tPlane[2]; - const GLfloat t_y1 = t - tPlane[1] / tPlane[2]; - GLfloat dsdx = s_x1 * invQ_x1 - s * invQ; - GLfloat dsdy = s_y1 * invQ_y1 - s * invQ; - GLfloat dtdx = t_x1 * invQ_x1 - t * invQ; - GLfloat dtdy = t_y1 * invQ_y1 - t * invQ; - GLfloat maxU, maxV, rho, lambda; - dsdx = FABSF(dsdx); - dsdy = FABSF(dsdy); - dtdx = FABSF(dtdx); - dtdy = FABSF(dtdy); - maxU = MAX2(dsdx, dsdy) * texWidth; - maxV = MAX2(dtdx, dtdy) * texHeight; - rho = MAX2(maxU, maxV); - lambda = LOG2(rho); - return lambda; -} - - -static void -tex_aa_tri(GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ -#define DO_Z -#define DO_FOG -#define DO_RGBA -#define DO_TEX -#include "s_aatritemp.h" -} - - -static void -spec_tex_aa_tri(GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ -#define DO_Z -#define DO_FOG -#define DO_RGBA -#define DO_TEX -#define DO_SPEC -#include "s_aatritemp.h" -} - - -static void -multitex_aa_tri(GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ -#define DO_Z -#define DO_FOG -#define DO_RGBA -#define DO_MULTITEX -#include "s_aatritemp.h" -} - -static void -spec_multitex_aa_tri(GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ -#define DO_Z -#define DO_FOG -#define DO_RGBA -#define DO_MULTITEX -#define DO_SPEC -#include "s_aatritemp.h" -} - - -/* - * Examine GL state and set swrast->Triangle to an - * appropriate antialiased triangle rasterizer function. - */ -void -_swrast_set_aa_triangle_function(GLcontext *ctx) -{ - ASSERT(ctx->Polygon.SmoothFlag); - - if (ctx->Texture._EnabledCoordUnits != 0) { - if (NEED_SECONDARY_COLOR(ctx)) { - if (ctx->Texture._EnabledCoordUnits > 1) { - SWRAST_CONTEXT(ctx)->Triangle = spec_multitex_aa_tri; - } - else { - SWRAST_CONTEXT(ctx)->Triangle = spec_tex_aa_tri; - } - } - else { - if (ctx->Texture._EnabledCoordUnits > 1) { - SWRAST_CONTEXT(ctx)->Triangle = multitex_aa_tri; - } - else { - SWRAST_CONTEXT(ctx)->Triangle = tex_aa_tri; - } - } - } - else if (ctx->Visual.rgbMode) { - SWRAST_CONTEXT(ctx)->Triangle = rgba_aa_tri; - } - else { - SWRAST_CONTEXT(ctx)->Triangle = index_aa_tri; - } - - ASSERT(SWRAST_CONTEXT(ctx)->Triangle); -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_aatriangle.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_aatriangle.h deleted file mode 100644 index ebb828eb1..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_aatriangle.h +++ /dev/null @@ -1,39 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_AATRIANGLE_H -#define S_AATRIANGLE_H - - -#include "mtypes.h" -#include "swrast.h" - - -extern void -_swrast_set_aa_triangle_function(GLcontext *ctx); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_aatritemp.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_aatritemp.h deleted file mode 100644 index 16e26d3f8..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_aatritemp.h +++ /dev/null @@ -1,549 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * Antialiased Triangle Rasterizer Template - * - * This file is #include'd to generate custom AA triangle rasterizers. - * NOTE: this code hasn't been optimized yet. That'll come after it - * works correctly. - * - * The following macros may be defined to indicate what auxillary information - * must be copmuted across the triangle: - * DO_Z - if defined, compute Z values - * DO_RGBA - if defined, compute RGBA values - * DO_INDEX - if defined, compute color index values - * DO_SPEC - if defined, compute specular RGB values - * DO_TEX - if defined, compute unit 0 STRQ texcoords - * DO_MULTITEX - if defined, compute all unit's STRQ texcoords - */ - -/*void triangle( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint pv )*/ -{ - const GLfloat *p0 = v0->win; - const GLfloat *p1 = v1->win; - const GLfloat *p2 = v2->win; - const SWvertex *vMin, *vMid, *vMax; - GLint iyMin, iyMax; - GLfloat yMin, yMax; - GLboolean ltor; - GLfloat majDx, majDy; /* major (i.e. long) edge dx and dy */ - - struct sw_span span; - -#ifdef DO_Z - GLfloat zPlane[4]; -#endif -#ifdef DO_FOG - GLfloat fogPlane[4]; -#else - GLfloat *fog = NULL; -#endif -#ifdef DO_RGBA - GLfloat rPlane[4], gPlane[4], bPlane[4], aPlane[4]; -#endif -#ifdef DO_INDEX - GLfloat iPlane[4]; -#endif -#ifdef DO_SPEC - GLfloat srPlane[4], sgPlane[4], sbPlane[4]; -#endif -#ifdef DO_TEX - GLfloat sPlane[4], tPlane[4], uPlane[4], vPlane[4]; - GLfloat texWidth, texHeight; -#elif defined(DO_MULTITEX) - GLfloat sPlane[MAX_TEXTURE_COORD_UNITS][4]; /* texture S */ - GLfloat tPlane[MAX_TEXTURE_COORD_UNITS][4]; /* texture T */ - GLfloat uPlane[MAX_TEXTURE_COORD_UNITS][4]; /* texture R */ - GLfloat vPlane[MAX_TEXTURE_COORD_UNITS][4]; /* texture Q */ - GLfloat texWidth[MAX_TEXTURE_COORD_UNITS]; - GLfloat texHeight[MAX_TEXTURE_COORD_UNITS]; -#endif - GLfloat bf = SWRAST_CONTEXT(ctx)->_BackfaceSign; - - - INIT_SPAN(span, GL_POLYGON, 0, 0, SPAN_COVERAGE); - - /* determine bottom to top order of vertices */ - { - GLfloat y0 = v0->win[1]; - GLfloat y1 = v1->win[1]; - GLfloat y2 = v2->win[1]; - if (y0 <= y1) { - if (y1 <= y2) { - vMin = v0; vMid = v1; vMax = v2; /* y0<=y1<=y2 */ - } - else if (y2 <= y0) { - vMin = v2; vMid = v0; vMax = v1; /* y2<=y0<=y1 */ - } - else { - vMin = v0; vMid = v2; vMax = v1; bf = -bf; /* y0<=y2<=y1 */ - } - } - else { - if (y0 <= y2) { - vMin = v1; vMid = v0; vMax = v2; bf = -bf; /* y1<=y0<=y2 */ - } - else if (y2 <= y1) { - vMin = v2; vMid = v1; vMax = v0; bf = -bf; /* y2<=y1<=y0 */ - } - else { - vMin = v1; vMid = v2; vMax = v0; /* y1<=y2<=y0 */ - } - } - } - - majDx = vMax->win[0] - vMin->win[0]; - majDy = vMax->win[1] - vMin->win[1]; - - { - const GLfloat botDx = vMid->win[0] - vMin->win[0]; - const GLfloat botDy = vMid->win[1] - vMin->win[1]; - const GLfloat area = majDx * botDy - botDx * majDy; - /* Do backface culling */ - if (area * bf < 0 || area == 0 || IS_INF_OR_NAN(area)) - return; - ltor = (GLboolean) (area < 0.0F); - } - -#ifndef DO_OCCLUSION_TEST - ctx->OcclusionResult = GL_TRUE; -#endif - - /* Plane equation setup: - * We evaluate plane equations at window (x,y) coordinates in order - * to compute color, Z, fog, texcoords, etc. This isn't terribly - * efficient but it's easy and reliable. - */ -#ifdef DO_Z - compute_plane(p0, p1, p2, p0[2], p1[2], p2[2], zPlane); - span.arrayMask |= SPAN_Z; -#endif -#ifdef DO_FOG - compute_plane(p0, p1, p2, v0->fog, v1->fog, v2->fog, fogPlane); - span.arrayMask |= SPAN_FOG; -#endif -#ifdef DO_RGBA - if (ctx->Light.ShadeModel == GL_SMOOTH) { - compute_plane(p0, p1, p2, v0->color[RCOMP], v1->color[RCOMP], v2->color[RCOMP], rPlane); - compute_plane(p0, p1, p2, v0->color[GCOMP], v1->color[GCOMP], v2->color[GCOMP], gPlane); - compute_plane(p0, p1, p2, v0->color[BCOMP], v1->color[BCOMP], v2->color[BCOMP], bPlane); - compute_plane(p0, p1, p2, v0->color[ACOMP], v1->color[ACOMP], v2->color[ACOMP], aPlane); - } - else { - constant_plane(v2->color[RCOMP], rPlane); - constant_plane(v2->color[GCOMP], gPlane); - constant_plane(v2->color[BCOMP], bPlane); - constant_plane(v2->color[ACOMP], aPlane); - } - span.arrayMask |= SPAN_RGBA; -#endif -#ifdef DO_INDEX - if (ctx->Light.ShadeModel == GL_SMOOTH) { - compute_plane(p0, p1, p2, (GLfloat) v0->index, - v1->index, v2->index, iPlane); - } - else { - constant_plane(v2->index, iPlane); - } - span.arrayMask |= SPAN_INDEX; -#endif -#ifdef DO_SPEC - if (ctx->Light.ShadeModel == GL_SMOOTH) { - compute_plane(p0, p1, p2, v0->specular[RCOMP], v1->specular[RCOMP], v2->specular[RCOMP], srPlane); - compute_plane(p0, p1, p2, v0->specular[GCOMP], v1->specular[GCOMP], v2->specular[GCOMP], sgPlane); - compute_plane(p0, p1, p2, v0->specular[BCOMP], v1->specular[BCOMP], v2->specular[BCOMP], sbPlane); - } - else { - constant_plane(v2->specular[RCOMP], srPlane); - constant_plane(v2->specular[GCOMP], sgPlane); - constant_plane(v2->specular[BCOMP], sbPlane); - } - span.arrayMask |= SPAN_SPEC; -#endif -#ifdef DO_TEX - { - const struct gl_texture_object *obj = ctx->Texture.Unit[0]._Current; - const struct gl_texture_image *texImage = obj->Image[0][obj->BaseLevel]; - const GLfloat invW0 = v0->win[3]; - const GLfloat invW1 = v1->win[3]; - const GLfloat invW2 = v2->win[3]; - const GLfloat s0 = v0->texcoord[0][0] * invW0; - const GLfloat s1 = v1->texcoord[0][0] * invW1; - const GLfloat s2 = v2->texcoord[0][0] * invW2; - const GLfloat t0 = v0->texcoord[0][1] * invW0; - const GLfloat t1 = v1->texcoord[0][1] * invW1; - const GLfloat t2 = v2->texcoord[0][1] * invW2; - const GLfloat r0 = v0->texcoord[0][2] * invW0; - const GLfloat r1 = v1->texcoord[0][2] * invW1; - const GLfloat r2 = v2->texcoord[0][2] * invW2; - const GLfloat q0 = v0->texcoord[0][3] * invW0; - const GLfloat q1 = v1->texcoord[0][3] * invW1; - const GLfloat q2 = v2->texcoord[0][3] * invW2; - compute_plane(p0, p1, p2, s0, s1, s2, sPlane); - compute_plane(p0, p1, p2, t0, t1, t2, tPlane); - compute_plane(p0, p1, p2, r0, r1, r2, uPlane); - compute_plane(p0, p1, p2, q0, q1, q2, vPlane); - texWidth = (GLfloat) texImage->Width; - texHeight = (GLfloat) texImage->Height; - } - span.arrayMask |= (SPAN_TEXTURE | SPAN_LAMBDA); -#elif defined(DO_MULTITEX) - { - GLuint u; - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture.Unit[u]._ReallyEnabled) { - const struct gl_texture_object *obj = ctx->Texture.Unit[u]._Current; - const struct gl_texture_image *texImage = obj->Image[0][obj->BaseLevel]; - const GLfloat invW0 = v0->win[3]; - const GLfloat invW1 = v1->win[3]; - const GLfloat invW2 = v2->win[3]; - const GLfloat s0 = v0->texcoord[u][0] * invW0; - const GLfloat s1 = v1->texcoord[u][0] * invW1; - const GLfloat s2 = v2->texcoord[u][0] * invW2; - const GLfloat t0 = v0->texcoord[u][1] * invW0; - const GLfloat t1 = v1->texcoord[u][1] * invW1; - const GLfloat t2 = v2->texcoord[u][1] * invW2; - const GLfloat r0 = v0->texcoord[u][2] * invW0; - const GLfloat r1 = v1->texcoord[u][2] * invW1; - const GLfloat r2 = v2->texcoord[u][2] * invW2; - const GLfloat q0 = v0->texcoord[u][3] * invW0; - const GLfloat q1 = v1->texcoord[u][3] * invW1; - const GLfloat q2 = v2->texcoord[u][3] * invW2; - compute_plane(p0, p1, p2, s0, s1, s2, sPlane[u]); - compute_plane(p0, p1, p2, t0, t1, t2, tPlane[u]); - compute_plane(p0, p1, p2, r0, r1, r2, uPlane[u]); - compute_plane(p0, p1, p2, q0, q1, q2, vPlane[u]); - texWidth[u] = (GLfloat) texImage->Width; - texHeight[u] = (GLfloat) texImage->Height; - } - } - } - span.arrayMask |= (SPAN_TEXTURE | SPAN_LAMBDA); -#endif - - /* Begin bottom-to-top scan over the triangle. - * The long edge will either be on the left or right side of the - * triangle. We always scan from the long edge toward the shorter - * edges, stopping when we find that coverage = 0. If the long edge - * is on the left we scan left-to-right. Else, we scan right-to-left. - */ - yMin = vMin->win[1]; - yMax = vMax->win[1]; - iyMin = (GLint) yMin; - iyMax = (GLint) yMax + 1; - - if (ltor) { - /* scan left to right */ - const GLfloat *pMin = vMin->win; - const GLfloat *pMid = vMid->win; - const GLfloat *pMax = vMax->win; - const GLfloat dxdy = majDx / majDy; - const GLfloat xAdj = dxdy < 0.0F ? -dxdy : 0.0F; - GLfloat x = pMin[0] - (yMin - iyMin) * dxdy; - GLint iy; - for (iy = iyMin; iy < iyMax; iy++, x += dxdy) { - GLint ix, startX = (GLint) (x - xAdj); - GLuint count; - GLfloat coverage = 0.0F; - - /* skip over fragments with zero coverage */ - while (startX < MAX_WIDTH) { - coverage = compute_coveragef(pMin, pMid, pMax, startX, iy); - if (coverage > 0.0F) - break; - startX++; - } - - /* enter interior of triangle */ - ix = startX; - count = 0; - while (coverage > 0.0F) { - /* (cx,cy) = center of fragment */ - const GLfloat cx = ix + 0.5F, cy = iy + 0.5F; - struct span_arrays *array = span.array; -#ifdef DO_INDEX - array->coverage[count] = (GLfloat) compute_coveragei(pMin, pMid, pMax, ix, iy); -#else - array->coverage[count] = coverage; -#endif -#ifdef DO_Z - array->z[count] = (GLdepth) IROUND(solve_plane(cx, cy, zPlane)); -#endif -#ifdef DO_FOG - array->fog[count] = solve_plane(cx, cy, fogPlane); -#endif -#ifdef DO_RGBA - array->rgba[count][RCOMP] = solve_plane_chan(cx, cy, rPlane); - array->rgba[count][GCOMP] = solve_plane_chan(cx, cy, gPlane); - array->rgba[count][BCOMP] = solve_plane_chan(cx, cy, bPlane); - array->rgba[count][ACOMP] = solve_plane_chan(cx, cy, aPlane); -#endif -#ifdef DO_INDEX - array->index[count] = (GLint) solve_plane(cx, cy, iPlane); -#endif -#ifdef DO_SPEC - array->spec[count][RCOMP] = solve_plane_chan(cx, cy, srPlane); - array->spec[count][GCOMP] = solve_plane_chan(cx, cy, sgPlane); - array->spec[count][BCOMP] = solve_plane_chan(cx, cy, sbPlane); -#endif -#ifdef DO_TEX - { - const GLfloat invQ = solve_plane_recip(cx, cy, vPlane); - array->texcoords[0][count][0] = solve_plane(cx, cy, sPlane) * invQ; - array->texcoords[0][count][1] = solve_plane(cx, cy, tPlane) * invQ; - array->texcoords[0][count][2] = solve_plane(cx, cy, uPlane) * invQ; - array->lambda[0][count] = compute_lambda(sPlane, tPlane, vPlane, - cx, cy, invQ, - texWidth, texHeight); - } -#elif defined(DO_MULTITEX) - { - GLuint unit; - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { - if (ctx->Texture.Unit[unit]._ReallyEnabled) { - GLfloat invQ = solve_plane_recip(cx, cy, vPlane[unit]); - array->texcoords[unit][count][0] = solve_plane(cx, cy, sPlane[unit]) * invQ; - array->texcoords[unit][count][1] = solve_plane(cx, cy, tPlane[unit]) * invQ; - array->texcoords[unit][count][2] = solve_plane(cx, cy, uPlane[unit]) * invQ; - array->lambda[unit][count] = compute_lambda(sPlane[unit], - tPlane[unit], vPlane[unit], cx, cy, invQ, - texWidth[unit], texHeight[unit]); - } - } - } -#endif - ix++; - count++; - coverage = compute_coveragef(pMin, pMid, pMax, ix, iy); - } - - if (ix <= startX) - continue; - - span.x = startX; - span.y = iy; - span.end = (GLuint) ix - (GLuint) startX; - ASSERT(span.interpMask == 0); -#if defined(DO_RGBA) - _swrast_write_rgba_span(ctx, &span); -#else - _swrast_write_index_span(ctx, &span); -#endif - } - } - else { - /* scan right to left */ - const GLfloat *pMin = vMin->win; - const GLfloat *pMid = vMid->win; - const GLfloat *pMax = vMax->win; - const GLfloat dxdy = majDx / majDy; - const GLfloat xAdj = dxdy > 0 ? dxdy : 0.0F; - GLfloat x = pMin[0] - (yMin - iyMin) * dxdy; - GLint iy; - for (iy = iyMin; iy < iyMax; iy++, x += dxdy) { - GLint ix, left, startX = (GLint) (x + xAdj); - GLuint count, n; - GLfloat coverage = 0.0F; - - /* make sure we're not past the window edge */ - if (startX >= ctx->DrawBuffer->_Xmax) { - startX = ctx->DrawBuffer->_Xmax - 1; - } - - /* skip fragments with zero coverage */ - while (startX >= 0) { - coverage = compute_coveragef(pMin, pMax, pMid, startX, iy); - if (coverage > 0.0F) - break; - startX--; - } - - /* enter interior of triangle */ - ix = startX; - count = 0; - while (coverage > 0.0F) { - /* (cx,cy) = center of fragment */ - const GLfloat cx = ix + 0.5F, cy = iy + 0.5F; - struct span_arrays *array = span.array; -#ifdef DO_INDEX - array->coverage[ix] = (GLfloat) compute_coveragei(pMin, pMax, pMid, ix, iy); -#else - array->coverage[ix] = coverage; -#endif -#ifdef DO_Z - array->z[ix] = (GLdepth) IROUND(solve_plane(cx, cy, zPlane)); -#endif -#ifdef DO_FOG - array->fog[ix] = solve_plane(cx, cy, fogPlane); -#endif -#ifdef DO_RGBA - array->rgba[ix][RCOMP] = solve_plane_chan(cx, cy, rPlane); - array->rgba[ix][GCOMP] = solve_plane_chan(cx, cy, gPlane); - array->rgba[ix][BCOMP] = solve_plane_chan(cx, cy, bPlane); - array->rgba[ix][ACOMP] = solve_plane_chan(cx, cy, aPlane); -#endif -#ifdef DO_INDEX - array->index[ix] = (GLint) solve_plane(cx, cy, iPlane); -#endif -#ifdef DO_SPEC - array->spec[ix][RCOMP] = solve_plane_chan(cx, cy, srPlane); - array->spec[ix][GCOMP] = solve_plane_chan(cx, cy, sgPlane); - array->spec[ix][BCOMP] = solve_plane_chan(cx, cy, sbPlane); -#endif -#ifdef DO_TEX - { - const GLfloat invQ = solve_plane_recip(cx, cy, vPlane); - array->texcoords[0][ix][0] = solve_plane(cx, cy, sPlane) * invQ; - array->texcoords[0][ix][1] = solve_plane(cx, cy, tPlane) * invQ; - array->texcoords[0][ix][2] = solve_plane(cx, cy, uPlane) * invQ; - array->lambda[0][ix] = compute_lambda(sPlane, tPlane, vPlane, - cx, cy, invQ, texWidth, texHeight); - } -#elif defined(DO_MULTITEX) - { - GLuint unit; - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { - if (ctx->Texture.Unit[unit]._ReallyEnabled) { - GLfloat invQ = solve_plane_recip(cx, cy, vPlane[unit]); - array->texcoords[unit][ix][0] = solve_plane(cx, cy, sPlane[unit]) * invQ; - array->texcoords[unit][ix][1] = solve_plane(cx, cy, tPlane[unit]) * invQ; - array->texcoords[unit][ix][2] = solve_plane(cx, cy, uPlane[unit]) * invQ; - array->lambda[unit][ix] = compute_lambda(sPlane[unit], - tPlane[unit], - vPlane[unit], - cx, cy, invQ, - texWidth[unit], - texHeight[unit]); - } - } - } -#endif - ix--; - count++; - coverage = compute_coveragef(pMin, pMax, pMid, ix, iy); - } - - if (startX <= ix) - continue; - - n = (GLuint) startX - (GLuint) ix; - - left = ix + 1; - - /* shift all values to the left */ - /* XXX this is temporary */ - { - struct span_arrays *array = span.array; - GLint j; - for (j = 0; j < (GLint) n; j++) { -#ifdef DO_RGBA - COPY_CHAN4(array->rgba[j], array->rgba[j + left]); -#endif -#ifdef DO_SPEC - COPY_CHAN4(array->spec[j], array->spec[j + left]); -#endif -#ifdef DO_INDEX - array->index[j] = array->index[j + left]; -#endif -#ifdef DO_Z - array->z[j] = array->z[j + left]; -#endif -#ifdef DO_FOG - array->fog[j] = array->fog[j + left]; -#endif -#ifdef DO_TEX - COPY_4V(array->texcoords[0][j], array->texcoords[0][j + left]); -#endif -#if defined(DO_MULTITEX) || defined(DO_TEX) - array->lambda[0][j] = array->lambda[0][j + left]; -#endif - array->coverage[j] = array->coverage[j + left]; - } - } -#ifdef DO_MULTITEX - /* shift texcoords */ - { - struct span_arrays *array = span.array; - GLuint unit; - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { - if (ctx->Texture.Unit[unit]._ReallyEnabled) { - GLint j; - for (j = 0; j < (GLint) n; j++) { - array->texcoords[unit][j][0] = array->texcoords[unit][j + left][0]; - array->texcoords[unit][j][1] = array->texcoords[unit][j + left][1]; - array->texcoords[unit][j][2] = array->texcoords[unit][j + left][2]; - array->lambda[unit][j] = array->lambda[unit][j + left]; - } - } - } - } -#endif - - span.x = left; - span.y = iy; - span.end = n; - ASSERT(span.interpMask == 0); -#if defined(DO_RGBA) - _swrast_write_rgba_span(ctx, &span); -#else - _swrast_write_index_span(ctx, &span); -#endif - } - } -} - - -#ifdef DO_Z -#undef DO_Z -#endif - -#ifdef DO_FOG -#undef DO_FOG -#endif - -#ifdef DO_RGBA -#undef DO_RGBA -#endif - -#ifdef DO_INDEX -#undef DO_INDEX -#endif - -#ifdef DO_SPEC -#undef DO_SPEC -#endif - -#ifdef DO_TEX -#undef DO_TEX -#endif - -#ifdef DO_MULTITEX -#undef DO_MULTITEX -#endif - -#ifdef DO_OCCLUSION_TEST -#undef DO_OCCLUSION_TEST -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_accum.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_accum.c deleted file mode 100644 index 5621d0c8a..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_accum.c +++ /dev/null @@ -1,584 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "macros.h" -#include "imports.h" -#include "fbobject.h" - -#include "s_accum.h" -#include "s_context.h" -#include "s_masking.h" -#include "s_span.h" - - -#define ACCUM_SCALE16 32767.0 - - -/* - * Accumulation buffer notes - * - * Normally, accumulation buffer values are GLshorts with values in - * [-32767, 32767] which represent floating point colors in [-1, 1], - * as defined by the OpenGL specification. - * - * We optimize for the common case used for full-scene antialiasing: - * // start with accum buffer cleared to zero - * glAccum(GL_LOAD, w); // or GL_ACCUM the first image - * glAccum(GL_ACCUM, w); - * ... - * glAccum(GL_ACCUM, w); - * glAccum(GL_RETURN, 1.0); - * That is, we start with an empty accumulation buffer and accumulate - * n images, each with weight w = 1/n. - * In this scenario, we can simply store unscaled integer values in - * the accum buffer instead of scaled integers. We'll also keep track - * of the w value so when we do GL_RETURN we simply divide the accumulated - * values by n (n=1/w). - * This lets us avoid _many_ int->float->int conversions. - */ - - -#if CHAN_BITS == 8 && ACCUM_BITS <= 32 -/* enable the optimization */ -#define USE_OPTIMIZED_ACCUM 1 -#else -#define USE_OPTIMIZED_ACCUM 0 -#endif - - -/** - * This is called when we fall out of optimized/unscaled accum buffer mode. - * That is, we convert each unscaled accum buffer value into a scaled value - * representing the range[-1, 1]. - */ -static void -rescale_accum( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *rb - = ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer; - const GLfloat s = swrast->_IntegerAccumScaler * (32767.0F / CHAN_MAXF); - - assert(rb); - assert(rb->_BaseFormat == GL_RGBA); - /* add other types in future? */ - assert(rb->DataType == GL_SHORT || rb->DataType == GL_UNSIGNED_SHORT); - assert(swrast->_IntegerAccumMode); - - if (rb->GetPointer(ctx, rb, 0, 0)) { - /* directly-addressable memory */ - GLuint y; - for (y = 0; y < rb->Height; y++) { - GLuint i; - GLshort *acc = (GLshort *) rb->GetPointer(ctx, rb, 0, y); - for (i = 0; i < 4 * rb->Width; i++) { - acc[i] = (GLshort) (acc[i] * s); - } - } - } - else { - /* use get/put row funcs */ - GLuint y; - for (y = 0; y < rb->Height; y++) { - GLshort accRow[MAX_WIDTH * 4]; - GLuint i; - rb->GetRow(ctx, rb, rb->Width, 0, y, accRow); - for (i = 0; i < 4 * rb->Width; i++) { - accRow[i] = (GLshort) (accRow[i] * s); - } - rb->PutRow(ctx, rb, rb->Width, 0, y, accRow, NULL); - } - } - - swrast->_IntegerAccumMode = GL_FALSE; -} - - - -/** - * Clear the accumulation Buffer. - */ -void -_swrast_clear_accum_buffer( GLcontext *ctx, struct gl_renderbuffer *rb ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLuint x, y, width, height; - - if (ctx->Visual.accumRedBits == 0) { - /* No accumulation buffer! Not an error. */ - return; - } - - assert(rb); - assert(rb->_BaseFormat == GL_RGBA); - /* add other types in future? */ - assert(rb->DataType == GL_SHORT || rb->DataType == GL_UNSIGNED_SHORT); - - /* bounds, with scissor */ - x = ctx->DrawBuffer->_Xmin; - y = ctx->DrawBuffer->_Ymin; - width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin; - height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin; - - if (rb->DataType == GL_SHORT || rb->DataType == GL_UNSIGNED_SHORT) { - const GLfloat accScale = 32767.0; - GLshort clearVal[4]; - GLuint i; - - clearVal[0] = (GLshort) (ctx->Accum.ClearColor[0] * accScale); - clearVal[1] = (GLshort) (ctx->Accum.ClearColor[1] * accScale); - clearVal[2] = (GLshort) (ctx->Accum.ClearColor[2] * accScale); - clearVal[3] = (GLshort) (ctx->Accum.ClearColor[3] * accScale); - - for (i = 0; i < height; i++) { - rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL); - } - } - else { - /* someday support other sizes */ - } - - /* update optimized accum state vars */ - if (ctx->Accum.ClearColor[0] == 0.0 && ctx->Accum.ClearColor[1] == 0.0 && - ctx->Accum.ClearColor[2] == 0.0 && ctx->Accum.ClearColor[3] == 0.0) { -#if USE_OPTIMIZED_ACCUM - swrast->_IntegerAccumMode = GL_TRUE; -#else - swrast->_IntegerAccumMode = GL_FALSE; -#endif - swrast->_IntegerAccumScaler = 0.0; /* denotes empty accum buffer */ - } - else { - swrast->_IntegerAccumMode = GL_FALSE; - } -} - - -static void -accum_add(GLcontext *ctx, GLfloat value, - GLint xpos, GLint ypos, GLint width, GLint height ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *rb - = ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer; - - assert(rb); - - /* Leave optimized accum buffer mode */ - if (swrast->_IntegerAccumMode) - rescale_accum(ctx); - - if (rb->DataType == GL_SHORT || rb->DataType == GL_UNSIGNED_SHORT) { - const GLshort incr = (GLshort) (value * ACCUM_SCALE16); - if (rb->GetPointer(ctx, rb, 0, 0)) { - GLint i, j; - for (i = 0; i < height; i++) { - GLshort *acc = (GLshort *) rb->GetPointer(ctx, rb, xpos, ypos + i); - for (j = 0; j < 4 * width; j++) { - acc[j] += incr; - } - } - } - else { - GLint i, j; - for (i = 0; i < height; i++) { - GLshort accRow[4 * MAX_WIDTH]; - rb->GetRow(ctx, rb, width, xpos, ypos + i, accRow); - for (j = 0; j < 4 * width; j++) { - accRow[j] += incr; - } - rb->PutRow(ctx, rb, width, xpos, ypos + i, accRow, NULL); - } - } - } - else { - /* other types someday */ - } -} - - -static void -accum_mult(GLcontext *ctx, GLfloat mult, - GLint xpos, GLint ypos, GLint width, GLint height ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *rb - = ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer; - - assert(rb); - - /* Leave optimized accum buffer mode */ - if (swrast->_IntegerAccumMode) - rescale_accum(ctx); - - if (rb->DataType == GL_SHORT || rb->DataType == GL_UNSIGNED_SHORT) { - if (rb->GetPointer(ctx, rb, 0, 0)) { - GLint i, j; - for (i = 0; i < height; i++) { - GLshort *acc = (GLshort *) rb->GetPointer(ctx, rb, xpos, ypos + i); - for (j = 0; j < 4 * width; j++) { - acc[j] = (GLshort) (acc[j] * mult); - } - } - } - else { - GLint i, j; - for (i = 0; i < height; i++) { - GLshort accRow[4 * MAX_WIDTH]; - rb->GetRow(ctx, rb, width, xpos, ypos + i, accRow); - for (j = 0; j < 4 * width; j++) { - accRow[j] = (GLshort) (accRow[j] * mult); - } - rb->PutRow(ctx, rb, width, xpos, ypos + i, accRow, NULL); - } - } - } - else { - /* other types someday */ - } -} - - - -static void -accum_accum(GLcontext *ctx, GLfloat value, - GLint xpos, GLint ypos, GLint width, GLint height ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *rb - = ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer; - const GLboolean directAccess = (rb->GetPointer(ctx, rb, 0, 0) != NULL); - - assert(rb); - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - /* no read buffer - OK */ - return; - } - - /* May have to leave optimized accum buffer mode */ - if (swrast->_IntegerAccumScaler == 0.0 && value > 0.0 && value <= 1.0) - swrast->_IntegerAccumScaler = value; - if (swrast->_IntegerAccumMode && value != swrast->_IntegerAccumScaler) - rescale_accum(ctx); - - _swrast_use_read_buffer(ctx); - - if (rb->DataType == GL_SHORT || rb->DataType == GL_UNSIGNED_SHORT) { - const GLfloat scale = value * ACCUM_SCALE16 / CHAN_MAXF; - GLshort accumRow[4 * MAX_WIDTH]; - GLchan rgba[MAX_WIDTH][4]; - GLint i; - - for (i = 0; i < height; i++) { - GLshort *acc; - if (directAccess) { - acc = (GLshort *) rb->GetPointer(ctx, rb, xpos, ypos + i); - } - else { - rb->GetRow(ctx, rb, width, xpos, ypos + i, accumRow); - acc = accumRow; - } - - /* read colors from color buffer */ - _swrast_read_rgba_span(ctx, ctx->ReadBuffer->_ColorReadBuffer, width, - xpos, ypos + i, rgba); - - /* do accumulation */ - if (swrast->_IntegerAccumMode) { - /* simply add integer color values into accum buffer */ - GLint j; - for (j = 0; j < width; j++) { - acc[j * 4 + 0] += rgba[j][RCOMP]; - acc[j * 4 + 1] += rgba[j][GCOMP]; - acc[j * 4 + 2] += rgba[j][BCOMP]; - acc[j * 4 + 3] += rgba[j][ACOMP]; - } - } - else { - /* scaled integer (or float) accum buffer */ - GLint j; - for (j = 0; j < width; j++) { - acc[j * 4 + 0] += (GLshort) ((GLfloat) rgba[j][RCOMP] * scale); - acc[j * 4 + 1] += (GLshort) ((GLfloat) rgba[j][GCOMP] * scale); - acc[j * 4 + 2] += (GLshort) ((GLfloat) rgba[j][BCOMP] * scale); - acc[j * 4 + 3] += (GLshort) ((GLfloat) rgba[j][ACOMP] * scale); - } - } - - if (!directAccess) { - rb->PutRow(ctx, rb, width, xpos, ypos + i, accumRow, NULL); - } - } - } - else { - /* other types someday */ - } - - _swrast_use_draw_buffer(ctx); -} - - - -static void -accum_load(GLcontext *ctx, GLfloat value, - GLint xpos, GLint ypos, GLint width, GLint height ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *rb - = ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer; - const GLboolean directAccess = (rb->GetPointer(ctx, rb, 0, 0) != NULL); - - assert(rb); - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - /* no read buffer - OK */ - return; - } - - /* This is a change to go into optimized accum buffer mode */ - if (value > 0.0 && value <= 1.0) { -#if USE_OPTIMIZED_ACCUM - swrast->_IntegerAccumMode = GL_TRUE; -#else - swrast->_IntegerAccumMode = GL_FALSE; -#endif - swrast->_IntegerAccumScaler = value; - } - else { - swrast->_IntegerAccumMode = GL_FALSE; - swrast->_IntegerAccumScaler = 0.0; - } - - _swrast_use_read_buffer(ctx); - - if (rb->DataType == GL_SHORT || rb->DataType == GL_UNSIGNED_SHORT) { - const GLfloat scale = value * ACCUM_SCALE16 / CHAN_MAXF; - GLshort accumRow[4 * MAX_WIDTH]; - GLchan rgba[MAX_WIDTH][4]; - GLint i; - - for (i = 0; i < height; i++) { - GLshort *acc; - if (directAccess) { - acc = (GLshort *) rb->GetPointer(ctx, rb, xpos, ypos + i); - } - else { - rb->GetRow(ctx, rb, width, xpos, ypos + i, accumRow); - acc = accumRow; - } - - /* read colors from color buffer */ - _swrast_read_rgba_span(ctx, ctx->ReadBuffer->_ColorReadBuffer, width, - xpos, ypos + i, rgba); - - /* do load */ - if (swrast->_IntegerAccumMode) { - /* just copy values in */ - GLint j; - assert(swrast->_IntegerAccumScaler > 0.0); - assert(swrast->_IntegerAccumScaler <= 1.0); - for (j = 0; j < width; j++) { - acc[j * 4 + 0] = rgba[j][RCOMP]; - acc[j * 4 + 1] = rgba[j][GCOMP]; - acc[j * 4 + 2] = rgba[j][BCOMP]; - acc[j * 4 + 3] = rgba[j][ACOMP]; - } - } - else { - /* scaled integer (or float) accum buffer */ - GLint j; - for (j = 0; j < width; j++) { - acc[j * 4 + 0] = (GLshort) ((GLfloat) rgba[j][RCOMP] * scale); - acc[j * 4 + 1] = (GLshort) ((GLfloat) rgba[j][GCOMP] * scale); - acc[j * 4 + 2] = (GLshort) ((GLfloat) rgba[j][BCOMP] * scale); - acc[j * 4 + 3] = (GLshort) ((GLfloat) rgba[j][ACOMP] * scale); - } - } - - if (!directAccess) { - rb->PutRow(ctx, rb, width, xpos, ypos + i, accumRow, NULL); - } - } - } - else { - /* other types someday */ - } - - _swrast_use_draw_buffer(ctx); -} - - -static void -accum_return(GLcontext *ctx, GLfloat value, - GLint xpos, GLint ypos, GLint width, GLint height ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *accumRb = fb->Attachment[BUFFER_ACCUM].Renderbuffer; - const GLboolean directAccess - = (accumRb->GetPointer(ctx, accumRb, 0, 0) != NULL); - const GLboolean masking = (!ctx->Color.ColorMask[RCOMP] || - !ctx->Color.ColorMask[GCOMP] || - !ctx->Color.ColorMask[BCOMP] || - !ctx->Color.ColorMask[ACOMP]); - - static GLchan multTable[32768]; - static GLfloat prevMult = 0.0; - const GLfloat mult = swrast->_IntegerAccumScaler; - const GLint max = MIN2((GLint) (256 / mult), 32767); - - /* May have to leave optimized accum buffer mode */ - if (swrast->_IntegerAccumMode && value != 1.0) - rescale_accum(ctx); - - if (swrast->_IntegerAccumMode && swrast->_IntegerAccumScaler > 0) { - /* build lookup table to avoid many floating point multiplies */ - GLint j; - assert(swrast->_IntegerAccumScaler <= 1.0); - if (mult != prevMult) { - for (j = 0; j < max; j++) - multTable[j] = IROUND((GLfloat) j * mult); - prevMult = mult; - } - } - - if (accumRb->DataType == GL_SHORT || - accumRb->DataType == GL_UNSIGNED_SHORT) { - const GLfloat scale = value * CHAN_MAXF / ACCUM_SCALE16; - GLuint buffer, i; - - /* XXX maybe transpose the 'i' and 'buffer' loops??? */ - for (i = 0; i < height; i++) { - GLchan rgba[MAX_WIDTH][4]; - GLshort accumRow[4 * MAX_WIDTH]; - GLshort *acc; - - if (directAccess) { - acc = (GLshort *) accumRb->GetPointer(ctx, accumRb, xpos, ypos +i); - } - else { - accumRb->GetRow(ctx, accumRb, width, xpos, ypos + i, accumRow); - acc = accumRow; - } - - /* get the colors to return */ - if (swrast->_IntegerAccumMode) { - GLint j; - for (j = 0; j < width; j++) { - ASSERT(acc[j * 4 + 0] < max); - ASSERT(acc[j * 4 + 1] < max); - ASSERT(acc[j * 4 + 2] < max); - ASSERT(acc[j * 4 + 3] < max); - rgba[j][RCOMP] = multTable[acc[j * 4 + 0]]; - rgba[j][GCOMP] = multTable[acc[j * 4 + 1]]; - rgba[j][BCOMP] = multTable[acc[j * 4 + 2]]; - rgba[j][ACOMP] = multTable[acc[j * 4 + 3]]; - } - } - else { - /* scaled integer (or float) accum buffer */ - GLint j; - for (j = 0; j < width; j++) { - GLint r = IROUND( (GLfloat) (acc[j * 4 + 0]) * scale ); - GLint g = IROUND( (GLfloat) (acc[j * 4 + 1]) * scale ); - GLint b = IROUND( (GLfloat) (acc[j * 4 + 2]) * scale ); - GLint a = IROUND( (GLfloat) (acc[j * 4 + 3]) * scale ); - rgba[j][RCOMP] = CLAMP( r, 0, CHAN_MAX ); - rgba[j][GCOMP] = CLAMP( g, 0, CHAN_MAX ); - rgba[j][BCOMP] = CLAMP( b, 0, CHAN_MAX ); - rgba[j][ACOMP] = CLAMP( a, 0, CHAN_MAX ); - } - } - - /* store colors */ - for (buffer = 0; buffer < fb->_NumColorDrawBuffers[0]; buffer++) { - struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[0][buffer]; - if (masking) { - _swrast_mask_rgba_array(ctx, rb, width, xpos, ypos + i, rgba); - } - rb->PutRow(ctx, rb, width, xpos, ypos + i, rgba, NULL); - } - } - } - else { - /* other types someday */ - } -} - - - -/** - * Software fallback for glAccum. - */ -void -_swrast_Accum( GLcontext *ctx, GLenum op, GLfloat value, - GLint xpos, GLint ypos, - GLint width, GLint height ) - -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - if (SWRAST_CONTEXT(ctx)->NewState) - _swrast_validate_derived( ctx ); - - if (!ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer) { - _mesa_warning(ctx, "Calling glAccum() without an accumulation buffer"); - return; - } - - RENDER_START(swrast, ctx); - - switch (op) { - case GL_ADD: - if (value != 0.0F) { - accum_add(ctx, value, xpos, ypos, width, height); - } - break; - case GL_MULT: - if (value != 1.0F) { - accum_mult(ctx, value, xpos, ypos, width, height); - } - break; - case GL_ACCUM: - if (value != 0.0F) { - accum_accum(ctx, value, xpos, ypos, width, height); - } - break; - case GL_LOAD: - accum_load(ctx, value, xpos, ypos, width, height); - break; - case GL_RETURN: - accum_return(ctx, value, xpos, ypos, width, height); - break; - default: - _mesa_problem(ctx, "invalid mode in _swrast_Accum()"); - break; - } - - RENDER_FINISH(swrast, ctx); -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_accum.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_accum.h deleted file mode 100644 index 97d2bef4c..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_accum.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_ACCUM_H -#define S_ACCUM_H - - -#include "mtypes.h" - - -extern void -_swrast_clear_accum_buffer(GLcontext *ctx, struct gl_renderbuffer *rb); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_alpha.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_alpha.c deleted file mode 100644 index 55c1e6a58..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_alpha.c +++ /dev/null @@ -1,224 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 4.1 - * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file swrast/s_alpha.c - * \brief Functions to apply alpha test. - */ - -#include "glheader.h" -#include "context.h" -#include "colormac.h" -#include "macros.h" - -#include "s_alpha.h" -#include "s_context.h" - - -/** - * \fn GLint _swrast_alpha_test( const GLcontext *ctx, struct sw_span *span ) - * \brief Apply the alpha test to a span of pixels. - * \return - * - "0" = all pixels in the span failed the alpha test. - * - "1" = one or more pixels passed the alpha test. - */ -GLint -_swrast_alpha_test( const GLcontext *ctx, struct sw_span *span ) -{ - const GLchan (*rgba)[4] = (const GLchan (*)[4]) span->array->rgba; - GLchan ref; - const GLuint n = span->end; - GLubyte *mask = span->array->mask; - GLuint i; - - CLAMPED_FLOAT_TO_CHAN(ref, ctx->Color.AlphaRef); - - if (span->arrayMask & SPAN_RGBA) { - /* Use the array values */ - switch (ctx->Color.AlphaFunc) { - case GL_LESS: - for (i = 0; i < n; i++) - mask[i] &= (rgba[i][ACOMP] < ref); - break; - case GL_LEQUAL: - for (i = 0; i < n; i++) - mask[i] &= (rgba[i][ACOMP] <= ref); - break; - case GL_GEQUAL: - for (i = 0; i < n; i++) - mask[i] &= (rgba[i][ACOMP] >= ref); - break; - case GL_GREATER: - for (i = 0; i < n; i++) - mask[i] &= (rgba[i][ACOMP] > ref); - break; - case GL_NOTEQUAL: - for (i = 0; i < n; i++) - mask[i] &= (rgba[i][ACOMP] != ref); - break; - case GL_EQUAL: - for (i = 0; i < n; i++) - mask[i] &= (rgba[i][ACOMP] == ref); - break; - case GL_ALWAYS: - /* do nothing */ - return 1; - case GL_NEVER: - /* caller should check for zero! */ - span->writeAll = GL_FALSE; - return 0; - default: - _mesa_problem( ctx, "Invalid alpha test in _swrast_alpha_test" ); - return 0; - } - } - else { - /* Use the interpolation values */ -#if CHAN_TYPE == GL_FLOAT - const GLfloat alphaStep = span->alphaStep; - GLfloat alpha = span->alpha; - ASSERT(span->interpMask & SPAN_RGBA); - switch (ctx->Color.AlphaFunc) { - case GL_LESS: - for (i = 0; i < n; i++) { - mask[i] &= (alpha < ref); - alpha += alphaStep; - } - break; - case GL_LEQUAL: - for (i = 0; i < n; i++) { - mask[i] &= (alpha <= ref); - alpha += alphaStep; - } - break; - case GL_GEQUAL: - for (i = 0; i < n; i++) { - mask[i] &= (alpha >= ref); - alpha += alphaStep; - } - break; - case GL_GREATER: - for (i = 0; i < n; i++) { - mask[i] &= (alpha > ref); - alpha += alphaStep; - } - break; - case GL_NOTEQUAL: - for (i = 0; i < n; i++) { - mask[i] &= (alpha != ref); - alpha += alphaStep; - } - break; - case GL_EQUAL: - for (i = 0; i < n; i++) { - mask[i] &= (alpha == ref); - alpha += alphaStep; - } - break; - case GL_ALWAYS: - /* do nothing */ - return 1; - case GL_NEVER: - /* caller should check for zero! */ - span->writeAll = GL_FALSE; - return 0; - default: - _mesa_problem( ctx, "Invalid alpha test in gl_alpha_test" ); - return 0; - } -#else - /* 8 or 16-bit channel interpolation */ - const GLfixed alphaStep = span->alphaStep; - GLfixed alpha = span->alpha; - ASSERT(span->interpMask & SPAN_RGBA); - switch (ctx->Color.AlphaFunc) { - case GL_LESS: - for (i = 0; i < n; i++) { - mask[i] &= (FixedToChan(alpha) < ref); - alpha += alphaStep; - } - break; - case GL_LEQUAL: - for (i = 0; i < n; i++) { - mask[i] &= (FixedToChan(alpha) <= ref); - alpha += alphaStep; - } - break; - case GL_GEQUAL: - for (i = 0; i < n; i++) { - mask[i] &= (FixedToChan(alpha) >= ref); - alpha += alphaStep; - } - break; - case GL_GREATER: - for (i = 0; i < n; i++) { - mask[i] &= (FixedToChan(alpha) > ref); - alpha += alphaStep; - } - break; - case GL_NOTEQUAL: - for (i = 0; i < n; i++) { - mask[i] &= (FixedToChan(alpha) != ref); - alpha += alphaStep; - } - break; - case GL_EQUAL: - for (i = 0; i < n; i++) { - mask[i] &= (FixedToChan(alpha) == ref); - alpha += alphaStep; - } - break; - case GL_ALWAYS: - /* do nothing */ - return 1; - case GL_NEVER: - /* caller should check for zero! */ - span->writeAll = GL_FALSE; - return 0; - default: - _mesa_problem( ctx, "Invalid alpha test in gl_alpha_test" ); - return 0; - } -#endif /* CHAN_TYPE */ - } - -#if 0 - /* XXXX This causes conformance failures!!!! */ - while ((span->start <= span->end) && - (mask[span->start] == 0)) - span->start ++; - - while ((span->end >= span->start) && - (mask[span->end] == 0)) - span->end --; -#endif - - span->writeAll = GL_FALSE; - - if (span->start >= span->end) - return 0; - else - return 1; -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_alpha.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_alpha.h deleted file mode 100644 index add0f74c4..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_alpha.h +++ /dev/null @@ -1,39 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 4.1 - * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_ALPHA_H -#define S_ALPHA_H - - -#include "mtypes.h" -#include "s_context.h" - - -extern GLint -_swrast_alpha_test( const GLcontext *ctx, struct sw_span *span ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_atifragshader.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_atifragshader.c deleted file mode 100644 index d137b17d2..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_atifragshader.c +++ /dev/null @@ -1,625 +0,0 @@ -/* - * - * Copyright (C) 2004 David Airlie All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * DAVID AIRLIE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "atifragshader.h" -#include "macros.h" -#include "program.h" - -#include "s_atifragshader.h" -#include "s_nvfragprog.h" -#include "s_span.h" -#include "s_texture.h" - -/** - * Fetch a texel. - */ -static void -fetch_texel(GLcontext * ctx, const GLfloat texcoord[4], GLfloat lambda, - GLuint unit, GLfloat color[4]) -{ - GLchan rgba[4]; - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - /* XXX use a float-valued TextureSample routine here!!! */ - swrast->TextureSample[unit] (ctx, unit, ctx->Texture.Unit[unit]._Current, - 1, (const GLfloat(*)[4]) texcoord, - &lambda, &rgba); - color[0] = CHAN_TO_FLOAT(rgba[0]); - color[1] = CHAN_TO_FLOAT(rgba[1]); - color[2] = CHAN_TO_FLOAT(rgba[2]); - color[3] = CHAN_TO_FLOAT(rgba[3]); -} - -static void -apply_swizzle(struct atifs_machine *machine, GLuint reg, GLuint swizzle) -{ - GLfloat s, t, r, q; - - s = machine->Registers[reg][0]; - t = machine->Registers[reg][1]; - r = machine->Registers[reg][2]; - q = machine->Registers[reg][3]; - - switch (swizzle) { - case GL_SWIZZLE_STR_ATI: - machine->Registers[reg][0] = s; - machine->Registers[reg][1] = t; - machine->Registers[reg][2] = r; - break; - case GL_SWIZZLE_STQ_ATI: - machine->Registers[reg][0] = s; - machine->Registers[reg][1] = t; - machine->Registers[reg][2] = q; - break; - case GL_SWIZZLE_STR_DR_ATI: - machine->Registers[reg][0] = s / r; - machine->Registers[reg][1] = t / r; - machine->Registers[reg][2] = 1 / r; - break; - case GL_SWIZZLE_STQ_DQ_ATI: - machine->Registers[reg][0] = s / q; - machine->Registers[reg][1] = t / q; - machine->Registers[reg][2] = 1 / q; - break; - } - machine->Registers[reg][3] = 0.0; -} - -static void -apply_src_rep(GLint optype, GLuint rep, GLfloat * val) -{ - GLint i; - GLint start, end; - if (!rep) - return; - - start = optype ? 3 : 0; - end = optype ? 4 : 3; - - for (i = start; i < end; i++) { - switch (rep) { - case GL_RED: - val[i] = val[0]; - break; - case GL_GREEN: - val[i] = val[1]; - break; - case GL_BLUE: - val[i] = val[2]; - break; - case GL_ALPHA: - val[i] = val[3]; - break; - } - } -} - -static void -apply_src_mod(GLint optype, GLuint mod, GLfloat * val) -{ - GLint i; - GLint start, end; - - if (!mod) - return; - - start = optype ? 3 : 0; - end = optype ? 4 : 3; - - for (i = start; i < end; i++) { - if (mod & GL_COMP_BIT_ATI) - val[i] = 1 - val[i]; - - if (mod & GL_BIAS_BIT_ATI) - val[i] = val[i] - 0.5; - - if (mod & GL_2X_BIT_ATI) - val[i] = 2 * val[i]; - - if (mod & GL_NEGATE_BIT_ATI) - val[i] = -val[i]; - } -} - -static void -apply_dst_mod(GLuint optype, GLuint mod, GLfloat * val) -{ - GLint i; - GLint has_sat = mod & GL_SATURATE_BIT_ATI; - GLint start, end; - - mod &= ~GL_SATURATE_BIT_ATI; - - start = optype ? 3 : 0; - end = optype ? 4 : 3; - - for (i = start; i < end; i++) { - switch (mod) { - case GL_2X_BIT_ATI: - val[i] = 2 * val[i]; - break; - case GL_4X_BIT_ATI: - val[i] = 4 * val[i]; - break; - case GL_8X_BIT_ATI: - val[i] = 8 * val[i]; - break; - case GL_HALF_BIT_ATI: - val[i] = val[i] * 0.5; - break; - case GL_QUARTER_BIT_ATI: - val[i] = val[i] * 0.25; - break; - case GL_EIGHTH_BIT_ATI: - val[i] = val[i] * 0.125; - break; - } - - if (has_sat) { - if (val[i] < 0.0) - val[i] = 0; - else if (val[i] > 1.0) - val[i] = 1.0; - } - else { - if (val[i] < -8.0) - val[i] = -8.0; - else if (val[i] > 8.0) - val[i] = 8.0; - } - } -} - - -static void -write_dst_addr(GLuint optype, GLuint mod, GLuint mask, GLfloat * src, - GLfloat * dst) -{ - GLint i; - apply_dst_mod(optype, mod, src); - - if (optype == ATI_FRAGMENT_SHADER_COLOR_OP) { - if (mask) { - if (mask & GL_RED_BIT_ATI) - dst[0] = src[0]; - - if (mask & GL_GREEN_BIT_ATI) - dst[1] = src[1]; - - if (mask & GL_BLUE_BIT_ATI) - dst[2] = src[2]; - } - else { - for (i = 0; i < 3; i++) - dst[i] = src[i]; - } - } - else - dst[3] = src[3]; -} - -static void -finish_pass(struct atifs_machine *machine) -{ - GLint i; - - for (i = 0; i < 6; i++) { - COPY_4V(machine->PrevPassRegisters[i], machine->Registers[i]); - } -} - -/** - * Execute the given fragment shader - * NOTE: we do everything in single-precision floating point; we don't - * currently observe the single/half/fixed-precision qualifiers. - * \param ctx - rendering context - * \param program - the fragment program to execute - * \param machine - machine state (register file) - * \param maxInst - max number of instructions to execute - * \return GL_TRUE if program completed or GL_FALSE if program executed KIL. - */ - -struct ati_fs_opcode_st ati_fs_opcodes[] = { - {GL_ADD_ATI, 2}, - {GL_SUB_ATI, 2}, - {GL_MUL_ATI, 2}, - {GL_MAD_ATI, 3}, - {GL_LERP_ATI, 3}, - {GL_MOV_ATI, 1}, - {GL_CND_ATI, 3}, - {GL_CND0_ATI, 3}, - {GL_DOT2_ADD_ATI, 3}, - {GL_DOT3_ATI, 2}, - {GL_DOT4_ATI, 2} -}; - - - -static void -handle_pass_op(struct atifs_machine *machine, struct atifs_instruction *inst, - const struct sw_span *span, GLuint column) -{ - GLuint idx = inst->DstReg[0].Index - GL_REG_0_ATI; - GLuint swizzle = inst->DstReg[0].Swizzle; - GLuint pass_tex = inst->SrcReg[0][0].Index; - - /* if we get here after passing pass one then we are starting pass two - backup the registers */ - if (machine->pass == 1) { - finish_pass(machine); - machine->pass = 2; - } - if (pass_tex >= GL_TEXTURE0_ARB && pass_tex <= GL_TEXTURE7_ARB) { - pass_tex -= GL_TEXTURE0_ARB; - COPY_4V(machine->Registers[idx], - span->array->texcoords[pass_tex][column]); - } - else if (pass_tex >= GL_REG_0_ATI && pass_tex <= GL_REG_5_ATI - && machine->pass == 2) { - pass_tex -= GL_REG_0_ATI; - COPY_4V(machine->Registers[idx], machine->PrevPassRegisters[pass_tex]); - } - apply_swizzle(machine, idx, swizzle); - -} - -static void -handle_sample_op(GLcontext * ctx, struct atifs_machine *machine, - struct atifs_instruction *inst, const struct sw_span *span, - GLuint column) -{ - GLuint idx = inst->DstReg[0].Index - GL_REG_0_ATI; - GLuint swizzle = inst->DstReg[0].Swizzle; - GLuint sample_tex = inst->SrcReg[0][0].Index; - - /* if we get here after passing pass one then we are starting pass two - backup the registers */ - if (machine->pass == 1) { - finish_pass(machine); - machine->pass = 2; - } - - if (sample_tex >= GL_TEXTURE0_ARB && sample_tex <= GL_TEXTURE7_ARB) { - sample_tex -= GL_TEXTURE0_ARB; - fetch_texel(ctx, span->array->texcoords[sample_tex][column], 0.0F, - sample_tex, machine->Registers[idx]); - } - else if (sample_tex >= GL_REG_0_ATI && sample_tex <= GL_REG_5_ATI) { - /* this is wrong... */ - sample_tex -= GL_REG_0_ATI; - fetch_texel(ctx, machine->Registers[sample_tex], 0, sample_tex, - machine->Registers[idx]); - } - - apply_swizzle(machine, idx, swizzle); -} - -#define SETUP_SRC_REG(optype, i, x) do { \ - if (optype) \ - src[optype][i][3] = x[3]; \ - else \ - COPY_3V(src[optype][i], x); \ - } while (0) - -static GLboolean -execute_shader(GLcontext * ctx, - const struct ati_fragment_shader *shader, GLuint maxInst, - struct atifs_machine *machine, const struct sw_span *span, - GLuint column) -{ - GLuint pc; - struct atifs_instruction *inst; - GLint optype; - GLint i; - GLint dstreg; - GLfloat src[2][3][4]; - GLfloat zeros[4] = { 0.0, 0.0, 0.0, 0.0 }; - GLfloat ones[4] = { 1.0, 1.0, 1.0, 1.0 }; - GLfloat dst[2][4], *dstp; - - for (pc = 0; pc < shader->Base.NumInstructions; pc++) { - inst = &shader->Instructions[pc]; - - if (inst->Opcode[0] == ATI_FRAGMENT_SHADER_PASS_OP) - handle_pass_op(machine, inst, span, column); - else if (inst->Opcode[0] == ATI_FRAGMENT_SHADER_SAMPLE_OP) - handle_sample_op(ctx, machine, inst, span, column); - else { - if (machine->pass == 0) - machine->pass = 1; - - /* setup the source registers for color and alpha ops */ - for (optype = 0; optype < 2; optype++) { - for (i = 0; i < inst->ArgCount[optype]; i++) { - GLint index = inst->SrcReg[optype][i].Index; - - if (index >= GL_REG_0_ATI && index <= GL_REG_5_ATI) - SETUP_SRC_REG(optype, i, - machine->Registers[index - GL_REG_0_ATI]); - else if (index >= GL_CON_0_ATI && index <= GL_CON_7_ATI) - SETUP_SRC_REG(optype, i, - shader->Constants[index - GL_CON_0_ATI]); - else if (index == GL_ONE) - SETUP_SRC_REG(optype, i, ones); - else if (index == GL_ZERO) - SETUP_SRC_REG(optype, i, zeros); - else if (index == GL_PRIMARY_COLOR_EXT) - SETUP_SRC_REG(optype, i, - machine->Inputs[ATI_FS_INPUT_PRIMARY]); - else if (index == GL_SECONDARY_INTERPOLATOR_ATI) - SETUP_SRC_REG(optype, i, - machine->Inputs[ATI_FS_INPUT_SECONDARY]); - - apply_src_rep(optype, inst->SrcReg[optype][i].argRep, - src[optype][i]); - apply_src_mod(optype, inst->SrcReg[optype][i].argMod, - src[optype][i]); - } - } - - /* Execute the operations - color then alpha */ - for (optype = 0; optype < 2; optype++) { - if (inst->Opcode[optype]) { - switch (inst->Opcode[optype]) { - case GL_ADD_ATI: - if (!optype) - for (i = 0; i < 3; i++) { - dst[optype][i] = - src[optype][0][i] + src[optype][1][i]; - } - else - dst[optype][3] = src[optype][0][3] + src[optype][1][3]; - break; - case GL_SUB_ATI: - if (!optype) - for (i = 0; i < 3; i++) { - dst[optype][i] = - src[optype][0][i] - src[optype][1][i]; - } - else - dst[optype][3] = src[optype][0][3] - src[optype][1][3]; - break; - case GL_MUL_ATI: - if (!optype) - for (i = 0; i < 3; i++) { - dst[optype][i] = - src[optype][0][i] * src[optype][1][i]; - } - else - dst[optype][3] = src[optype][0][3] * src[optype][1][3]; - break; - case GL_MAD_ATI: - if (!optype) - for (i = 0; i < 3; i++) { - dst[optype][i] = - src[optype][0][i] * src[optype][1][i] + - src[optype][2][i]; - } - else - dst[optype][3] = - src[optype][0][3] * src[optype][1][3] + - src[optype][2][3]; - break; - case GL_LERP_ATI: - if (!optype) - for (i = 0; i < 3; i++) { - dst[optype][i] = - src[optype][0][i] * src[optype][1][i] + (1 - - src - [optype] - [0][i]) * - src[optype][2][i]; - } - else - dst[optype][3] = - src[optype][0][3] * src[optype][1][3] + (1 - - src[optype] - [0][3]) * - src[optype][2][3]; - break; - - case GL_MOV_ATI: - if (!optype) - for (i = 0; i < 3; i++) { - dst[optype][i] = src[optype][0][i]; - } - else - dst[optype][3] = src[optype][0][3]; - break; - case GL_CND_ATI: - if (!optype) { - for (i = 0; i < 3; i++) { - dst[optype][i] = - (src[optype][2][i] > - 0.5) ? src[optype][0][i] : src[optype][1][i]; - } - } - else { - dst[optype][3] = - (src[optype][2][3] > - 0.5) ? src[optype][0][3] : src[optype][1][3]; - } - break; - - case GL_CND0_ATI: - if (!optype) - for (i = 0; i < 3; i++) { - dst[optype][i] = - (src[optype][2][i] >= - 0) ? src[optype][0][i] : src[optype][1][i]; - } - else { - dst[optype][3] = - (src[optype][2][3] >= - 0) ? src[optype][0][3] : src[optype][1][3]; - } - break; - case GL_DOT2_ADD_ATI: - { - GLfloat result; - - /* DOT 2 always uses the source from the color op */ - result = src[0][0][0] * src[0][1][0] + - src[0][0][1] * src[0][1][1] + src[0][2][2]; - if (!optype) { - for (i = 0; i < 3; i++) { - dst[optype][i] = result; - } - } - else - dst[optype][3] = result; - - } - break; - case GL_DOT3_ATI: - { - GLfloat result; - - /* DOT 3 always uses the source from the color op */ - result = src[0][0][0] * src[0][1][0] + - src[0][0][1] * src[0][1][1] + - src[0][0][2] * src[0][1][2]; - - if (!optype) { - for (i = 0; i < 3; i++) { - dst[optype][i] = result; - } - } - else - dst[optype][3] = result; - } - break; - case GL_DOT4_ATI: - { - GLfloat result; - - /* DOT 4 always uses the source from the color op */ - result = src[optype][0][0] * src[0][1][0] + - src[0][0][1] * src[0][1][1] + - src[0][0][2] * src[0][1][2] + - src[0][0][3] * src[0][1][3]; - if (!optype) { - for (i = 0; i < 3; i++) { - dst[optype][i] = result; - } - } - else - dst[optype][3] = result; - } - break; - - } - } - } - - /* write out the destination registers */ - for (optype = 0; optype < 2; optype++) { - if (inst->Opcode[optype]) { - dstreg = inst->DstReg[optype].Index; - dstp = machine->Registers[dstreg - GL_REG_0_ATI]; - - write_dst_addr(optype, inst->DstReg[optype].dstMod, - inst->DstReg[optype].dstMask, dst[optype], - dstp); - } - } - } - } - return GL_TRUE; -} - -static void -init_machine(GLcontext * ctx, struct atifs_machine *machine, - const struct ati_fragment_shader *shader, - const struct sw_span *span, GLuint col) -{ - GLint i, j; - - for (i = 0; i < 6; i++) { - for (j = 0; j < 4; j++) - ctx->ATIFragmentShader.Machine.Registers[i][j] = 0.0; - - } - - ctx->ATIFragmentShader.Machine.Inputs[ATI_FS_INPUT_PRIMARY][0] = - CHAN_TO_FLOAT(span->array->rgba[col][0]); - ctx->ATIFragmentShader.Machine.Inputs[ATI_FS_INPUT_PRIMARY][1] = - CHAN_TO_FLOAT(span->array->rgba[col][1]); - ctx->ATIFragmentShader.Machine.Inputs[ATI_FS_INPUT_PRIMARY][2] = - CHAN_TO_FLOAT(span->array->rgba[col][2]); - ctx->ATIFragmentShader.Machine.Inputs[ATI_FS_INPUT_PRIMARY][3] = - CHAN_TO_FLOAT(span->array->rgba[col][3]); - - ctx->ATIFragmentShader.Machine.Inputs[ATI_FS_INPUT_SECONDARY][0] = - CHAN_TO_FLOAT(span->array->spec[col][0]); - ctx->ATIFragmentShader.Machine.Inputs[ATI_FS_INPUT_SECONDARY][1] = - CHAN_TO_FLOAT(span->array->spec[col][1]); - ctx->ATIFragmentShader.Machine.Inputs[ATI_FS_INPUT_SECONDARY][2] = - CHAN_TO_FLOAT(span->array->spec[col][2]); - ctx->ATIFragmentShader.Machine.Inputs[ATI_FS_INPUT_SECONDARY][3] = - CHAN_TO_FLOAT(span->array->spec[col][3]); - - ctx->ATIFragmentShader.Machine.pass = 0; -} - - - -/** - * Execute the current fragment program, operating on the given span. - */ -void -_swrast_exec_fragment_shader(GLcontext * ctx, struct sw_span *span) -{ - const struct ati_fragment_shader *shader = ctx->ATIFragmentShader.Current; - GLuint i; - - ctx->_CurrentProgram = GL_FRAGMENT_SHADER_ATI; - - for (i = 0; i < span->end; i++) { - if (span->array->mask[i]) { - init_machine(ctx, &ctx->ATIFragmentShader.Machine, - ctx->ATIFragmentShader.Current, span, i); - - if (execute_shader(ctx, shader, ~0, - &ctx->ATIFragmentShader.Machine, span, i)) { - span->array->mask[i] = GL_FALSE; - } - - { - const GLfloat *colOut = - ctx->ATIFragmentShader.Machine.Registers[0]; - - /*fprintf(stderr,"outputs %f %f %f %f\n", colOut[0], colOut[1], colOut[2], colOut[3]); */ - UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][RCOMP], colOut[0]); - UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][GCOMP], colOut[1]); - UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][BCOMP], colOut[2]); - UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][ACOMP], colOut[3]); - } - } - - } - - - ctx->_CurrentProgram = 0; - -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_atifragshader.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_atifragshader.h deleted file mode 100644 index 269be1f2e..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_atifragshader.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2003 David Airlie All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * DAVID AIRLIE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_ATIFRAGSHADER_H -#define S_ATIFRAGSHADER_H - - -#include "s_context.h" - - -extern void -_swrast_exec_fragment_shader( GLcontext *ctx, struct sw_span *span ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_bitmap.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_bitmap.c deleted file mode 100644 index dd5008cf6..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_bitmap.c +++ /dev/null @@ -1,282 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file swrast/s_bitmap.c - * \brief glBitmap rendering. - * \author Brian Paul - */ - -#include "glheader.h" -#include "bufferobj.h" -#include "image.h" -#include "macros.h" -#include "pixel.h" - -#include "s_context.h" -#include "s_span.h" - - - -/* - * Render a bitmap. - */ -void -_swrast_Bitmap( GLcontext *ctx, GLint px, GLint py, - GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLint row, col; - GLuint count = 0; - struct sw_span span; - - ASSERT(ctx->RenderMode == GL_RENDER); - - if (unpack->BufferObj->Name) { - /* unpack from PBO */ - GLubyte *buf; - if (!_mesa_validate_pbo_access(2, unpack, width, height, 1, - GL_COLOR_INDEX, GL_BITMAP, - (GLvoid *) bitmap)) { - _mesa_error(ctx, GL_INVALID_OPERATION,"glBitmap(invalid PBO access)"); - return; - } - buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, - GL_READ_ONLY_ARB, - unpack->BufferObj); - if (!buf) { - /* buffer is already mapped - that's an error */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glBitmap(PBO is mapped)"); - return; - } - bitmap = ADD_POINTERS(buf, bitmap); - } - - RENDER_START(swrast,ctx); - - if (SWRAST_CONTEXT(ctx)->NewState) - _swrast_validate_derived( ctx ); - - INIT_SPAN(span, GL_BITMAP, width, 0, SPAN_XY); - - if (ctx->Visual.rgbMode) { - span.interpMask |= SPAN_RGBA; - span.red = FloatToFixed(ctx->Current.RasterColor[0] * CHAN_MAXF); - span.green = FloatToFixed(ctx->Current.RasterColor[1] * CHAN_MAXF); - span.blue = FloatToFixed(ctx->Current.RasterColor[2] * CHAN_MAXF); - span.alpha = FloatToFixed(ctx->Current.RasterColor[3] * CHAN_MAXF); - span.redStep = span.greenStep = span.blueStep = span.alphaStep = 0; - } - else { - span.interpMask |= SPAN_INDEX; - span.index = FloatToFixed(ctx->Current.RasterIndex); - span.indexStep = 0; - } - - if (ctx->Depth.Test) - _swrast_span_default_z(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - if (ctx->Texture._EnabledCoordUnits) - _swrast_span_default_texcoords(ctx, &span); - - for (row = 0; row < height; row++) { - const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, - bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); - - if (unpack->LsbFirst) { - /* Lsb first */ - GLubyte mask = 1U << (unpack->SkipPixels & 0x7); - for (col = 0; col < width; col++) { - if (*src & mask) { - span.array->x[count] = px + col; - span.array->y[count] = py + row; - count++; - } - if (mask == 128U) { - src++; - mask = 1U; - } - else { - mask = mask << 1; - } - } - - /* get ready for next row */ - if (mask != 1) - src++; - } - else { - /* Msb first */ - GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); - for (col = 0; col < width; col++) { - if (*src & mask) { - span.array->x[count] = px + col; - span.array->y[count] = py + row; - count++; - } - if (mask == 1U) { - src++; - mask = 128U; - } - else { - mask = mask >> 1; - } - } - - /* get ready for next row */ - if (mask != 128) - src++; - } - - if (count + width >= MAX_WIDTH || row + 1 == height) { - /* flush the span */ - span.end = count; - if (ctx->Visual.rgbMode) - _swrast_write_rgba_span(ctx, &span); - else - _swrast_write_index_span(ctx, &span); - span.end = 0; - count = 0; - } - } - - RENDER_FINISH(swrast,ctx); - - if (unpack->BufferObj->Name) { - /* done with PBO so unmap it now */ - ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, - unpack->BufferObj); - } -} - - -#if 0 -/* - * XXX this is another way to implement Bitmap. Use horizontal runs of - * fragments, initializing the mask array to indicate which fragmens to - * draw or skip. - */ -void -_swrast_Bitmap( GLcontext *ctx, GLint px, GLint py, - GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLint row, col; - struct sw_span span; - - ASSERT(ctx->RenderMode == GL_RENDER); - ASSERT(bitmap); - - RENDER_START(swrast,ctx); - - if (SWRAST_CONTEXT(ctx)->NewState) - _swrast_validate_derived( ctx ); - - INIT_SPAN(span, GL_BITMAP, width, 0, SPAN_MASK); - - /*span.arrayMask |= SPAN_MASK;*/ /* we'll init span.mask[] */ - span.x = px; - span.y = py; - /*span.end = width;*/ - if (ctx->Visual.rgbMode) { - span.interpMask |= SPAN_RGBA; - span.red = FloatToFixed(ctx->Current.RasterColor[0] * CHAN_MAXF); - span.green = FloatToFixed(ctx->Current.RasterColor[1] * CHAN_MAXF); - span.blue = FloatToFixed(ctx->Current.RasterColor[2] * CHAN_MAXF); - span.alpha = FloatToFixed(ctx->Current.RasterColor[3] * CHAN_MAXF); - span.redStep = span.greenStep = span.blueStep = span.alphaStep = 0; - } - else { - span.interpMask |= SPAN_INDEX; - span.index = FloatToFixed(ctx->Current.RasterIndex); - span.indexStep = 0; - } - - if (ctx->Depth.Test) - _swrast_span_default_z(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - if (ctx->Texture._EnabledCoordUnits) - _swrast_span_default_texcoords(ctx, &span); - - for (row=0; row<height; row++, span.y++) { - const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack, - bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); - - if (unpack->LsbFirst) { - /* Lsb first */ - GLubyte mask = 1U << (unpack->SkipPixels & 0x7); - for (col=0; col<width; col++) { - span.array->mask[col] = (*src & mask) ? GL_TRUE : GL_FALSE; - if (mask == 128U) { - src++; - mask = 1U; - } - else { - mask = mask << 1; - } - } - - if (ctx->Visual.rgbMode) - _swrast_write_rgba_span(ctx, &span); - else - _swrast_write_index_span(ctx, &span); - - /* get ready for next row */ - if (mask != 1) - src++; - } - else { - /* Msb first */ - GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); - for (col=0; col<width; col++) { - span.array->mask[col] = (*src & mask) ? GL_TRUE : GL_FALSE; - if (mask == 1U) { - src++; - mask = 128U; - } - else { - mask = mask >> 1; - } - } - - if (ctx->Visual.rgbMode) - _swrast_write_rgba_span(ctx, &span); - else - _swrast_write_index_span(ctx, &span); - - /* get ready for next row */ - if (mask != 128) - src++; - } - } - - RENDER_FINISH(swrast,ctx); -} -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_blend.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_blend.c deleted file mode 100644 index d94ff3923..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_blend.c +++ /dev/null @@ -1,872 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * Regarding GL_NV_blend_square: - * - * Portions of this software may use or implement intellectual - * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims - * any and all warranties with respect to such intellectual property, - * including any use thereof or modifications thereto. - */ - - -#include "glheader.h" -#include "context.h" -#include "colormac.h" -#include "macros.h" - -#include "s_blend.h" -#include "s_context.h" -#include "s_span.h" - - -#if defined(USE_MMX_ASM) -#include "x86/mmx.h" -#include "x86/common_x86_asm.h" -#define _BLENDAPI _ASMAPI -#else -#define _BLENDAPI -#endif - - -/* - * Special case for glBlendFunc(GL_ZERO, GL_ONE) - */ -static void _BLENDAPI -blend_noop( GLcontext *ctx, GLuint n, const GLubyte mask[], - GLchan rgba[][4], CONST GLchan dest[][4] ) -{ - GLuint i; - ASSERT(ctx->Color.BlendEquationRGB==GL_FUNC_ADD); - ASSERT(ctx->Color.BlendEquationA==GL_FUNC_ADD); - ASSERT(ctx->Color.BlendSrcRGB==GL_ZERO); - ASSERT(ctx->Color.BlendDstRGB==GL_ONE); - (void) ctx; - - for (i = 0; i < n; i++) { - if (mask[i]) { - COPY_CHAN4( rgba[i], dest[i] ); - } - } -} - - -/* - * Special case for glBlendFunc(GL_ONE, GL_ZERO) - */ -static void _BLENDAPI -blend_replace( GLcontext *ctx, GLuint n, const GLubyte mask[], - GLchan rgba[][4], CONST GLchan dest[][4] ) -{ - ASSERT(ctx->Color.BlendEquationRGB==GL_FUNC_ADD); - ASSERT(ctx->Color.BlendEquationA==GL_FUNC_ADD); - ASSERT(ctx->Color.BlendSrcRGB==GL_ONE); - ASSERT(ctx->Color.BlendDstRGB==GL_ZERO); - (void) ctx; - (void) n; - (void) mask; - (void) rgba; - (void) dest; -} - - -/* - * Common transparency blending mode. - */ -static void _BLENDAPI -blend_transparency( GLcontext *ctx, GLuint n, const GLubyte mask[], - GLchan rgba[][4], CONST GLchan dest[][4] ) -{ - GLuint i; - ASSERT(ctx->Color.BlendEquationRGB==GL_FUNC_ADD); - ASSERT(ctx->Color.BlendEquationA==GL_FUNC_ADD); - ASSERT(ctx->Color.BlendSrcRGB==GL_SRC_ALPHA); - ASSERT(ctx->Color.BlendDstRGB==GL_ONE_MINUS_SRC_ALPHA); - (void) ctx; - - for (i=0;i<n;i++) { - if (mask[i]) { - const GLchan t = rgba[i][ACOMP]; /* t in [0, CHAN_MAX] */ - if (t == 0) { - /* 0% alpha */ - rgba[i][RCOMP] = dest[i][RCOMP]; - rgba[i][GCOMP] = dest[i][GCOMP]; - rgba[i][BCOMP] = dest[i][BCOMP]; - rgba[i][ACOMP] = dest[i][ACOMP]; - } - else if (t == CHAN_MAX) { - /* 100% alpha, no-op */ - } - else { -#if 0 - /* This is pretty close, but Glean complains */ - const GLint s = CHAN_MAX - t; - const GLint r = (rgba[i][RCOMP] * t + dest[i][RCOMP] * s + 1) >> 8; - const GLint g = (rgba[i][GCOMP] * t + dest[i][GCOMP] * s + 1) >> 8; - const GLint b = (rgba[i][BCOMP] * t + dest[i][BCOMP] * s + 1) >> 8; - const GLint a = (rgba[i][ACOMP] * t + dest[i][ACOMP] * s + 1) >> 8; -#elif 0 - /* This is slower but satisfies Glean */ - const GLint s = CHAN_MAX - t; - const GLint r = (rgba[i][RCOMP] * t + dest[i][RCOMP] * s) / 255; - const GLint g = (rgba[i][GCOMP] * t + dest[i][GCOMP] * s) / 255; - const GLint b = (rgba[i][BCOMP] * t + dest[i][BCOMP] * s) / 255; - const GLint a = (rgba[i][ACOMP] * t + dest[i][ACOMP] * s) / 255; -#else -#if CHAN_BITS == 8 - /* This satisfies Glean and should be reasonably fast */ - /* Contributed by Nathan Hand */ -#if 0 -#define DIV255(X) (((X) << 8) + (X) + 256) >> 16 -#else - GLint temp; -#define DIV255(X) (temp = (X), ((temp << 8) + temp + 256) >> 16) -#endif - const GLint r = DIV255((rgba[i][RCOMP] - dest[i][RCOMP]) * t) + dest[i][RCOMP]; - const GLint g = DIV255((rgba[i][GCOMP] - dest[i][GCOMP]) * t) + dest[i][GCOMP]; - const GLint b = DIV255((rgba[i][BCOMP] - dest[i][BCOMP]) * t) + dest[i][BCOMP]; - const GLint a = DIV255((rgba[i][ACOMP] - dest[i][ACOMP]) * t) + dest[i][ACOMP]; - -#undef DIV255 -#elif CHAN_BITS == 16 - const GLfloat tt = (GLfloat) t / CHAN_MAXF; - const GLint r = (GLint) ((rgba[i][RCOMP] - dest[i][RCOMP]) * tt + dest[i][RCOMP]); - const GLint g = (GLint) ((rgba[i][GCOMP] - dest[i][GCOMP]) * tt + dest[i][GCOMP]); - const GLint b = (GLint) ((rgba[i][BCOMP] - dest[i][BCOMP]) * tt + dest[i][BCOMP]); - const GLint a = (GLint) ((rgba[i][ACOMP] - dest[i][ACOMP]) * tt + dest[i][ACOMP]); -#else /* CHAN_BITS == 32 */ - const GLfloat tt = (GLfloat) t / CHAN_MAXF; - const GLfloat r = (rgba[i][RCOMP] - dest[i][RCOMP]) * tt + dest[i][RCOMP]; - const GLfloat g = (rgba[i][GCOMP] - dest[i][GCOMP]) * tt + dest[i][GCOMP]; - const GLfloat b = (rgba[i][BCOMP] - dest[i][BCOMP]) * tt + dest[i][BCOMP]; - const GLfloat a = CLAMP( rgba[i][ACOMP], 0.0F, CHAN_MAXF ) * t + - CLAMP( dest[i][ACOMP], 0.0F, CHAN_MAXF ) * (1.0F - t); -#endif -#endif - ASSERT(r <= CHAN_MAX); - ASSERT(g <= CHAN_MAX); - ASSERT(b <= CHAN_MAX); - ASSERT(a <= CHAN_MAX); - rgba[i][RCOMP] = (GLchan) r; - rgba[i][GCOMP] = (GLchan) g; - rgba[i][BCOMP] = (GLchan) b; - rgba[i][ACOMP] = (GLchan) a; - } - } - } -} - - - -/* - * Add src and dest. - */ -static void _BLENDAPI -blend_add( GLcontext *ctx, GLuint n, const GLubyte mask[], - GLchan rgba[][4], CONST GLchan dest[][4] ) -{ - GLuint i; - ASSERT(ctx->Color.BlendEquationRGB==GL_FUNC_ADD); - ASSERT(ctx->Color.BlendEquationA==GL_FUNC_ADD); - ASSERT(ctx->Color.BlendSrcRGB==GL_ONE); - ASSERT(ctx->Color.BlendDstRGB==GL_ONE); - (void) ctx; - - for (i=0;i<n;i++) { - if (mask[i]) { -#if CHAN_TYPE == GL_FLOAT - /* don't RGB clamp to max */ - GLfloat a = CLAMP(rgba[i][ACOMP], 0.0F, CHAN_MAXF) + dest[i][ACOMP]; - rgba[i][RCOMP] += dest[i][RCOMP]; - rgba[i][GCOMP] += dest[i][GCOMP]; - rgba[i][BCOMP] += dest[i][BCOMP]; - rgba[i][ACOMP] = (GLchan) MIN2( a, CHAN_MAXF ); -#else - GLint r = rgba[i][RCOMP] + dest[i][RCOMP]; - GLint g = rgba[i][GCOMP] + dest[i][GCOMP]; - GLint b = rgba[i][BCOMP] + dest[i][BCOMP]; - GLint a = rgba[i][ACOMP] + dest[i][ACOMP]; - rgba[i][RCOMP] = (GLchan) MIN2( r, CHAN_MAX ); - rgba[i][GCOMP] = (GLchan) MIN2( g, CHAN_MAX ); - rgba[i][BCOMP] = (GLchan) MIN2( b, CHAN_MAX ); - rgba[i][ACOMP] = (GLchan) MIN2( a, CHAN_MAX ); -#endif - } - } -} - - - -/* - * Blend min function (for GL_EXT_blend_minmax) - */ -static void _BLENDAPI -blend_min( GLcontext *ctx, GLuint n, const GLubyte mask[], - GLchan rgba[][4], CONST GLchan dest[][4] ) -{ - GLuint i; - ASSERT(ctx->Color.BlendEquationRGB==GL_MIN); - ASSERT(ctx->Color.BlendEquationA==GL_MIN); - (void) ctx; - - for (i=0;i<n;i++) { - if (mask[i]) { - rgba[i][RCOMP] = (GLchan) MIN2( rgba[i][RCOMP], dest[i][RCOMP] ); - rgba[i][GCOMP] = (GLchan) MIN2( rgba[i][GCOMP], dest[i][GCOMP] ); - rgba[i][BCOMP] = (GLchan) MIN2( rgba[i][BCOMP], dest[i][BCOMP] ); -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = (GLchan) MIN2(CLAMP(rgba[i][ACOMP], 0.0F, CHAN_MAXF), - dest[i][ACOMP]); -#else - rgba[i][ACOMP] = (GLchan) MIN2( rgba[i][ACOMP], dest[i][ACOMP] ); -#endif - } - } -} - - - -/* - * Blend max function (for GL_EXT_blend_minmax) - */ -static void _BLENDAPI -blend_max( GLcontext *ctx, GLuint n, const GLubyte mask[], - GLchan rgba[][4], CONST GLchan dest[][4] ) -{ - GLuint i; - ASSERT(ctx->Color.BlendEquationRGB==GL_MAX); - ASSERT(ctx->Color.BlendEquationA==GL_MAX); - (void) ctx; - - for (i=0;i<n;i++) { - if (mask[i]) { - rgba[i][RCOMP] = (GLchan) MAX2( rgba[i][RCOMP], dest[i][RCOMP] ); - rgba[i][GCOMP] = (GLchan) MAX2( rgba[i][GCOMP], dest[i][GCOMP] ); - rgba[i][BCOMP] = (GLchan) MAX2( rgba[i][BCOMP], dest[i][BCOMP] ); -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = (GLchan) MAX2(CLAMP(rgba[i][ACOMP], 0.0F, CHAN_MAXF), - dest[i][ACOMP]); -#else - rgba[i][ACOMP] = (GLchan) MAX2( rgba[i][ACOMP], dest[i][ACOMP] ); -#endif - } - } -} - - - -/* - * Modulate: result = src * dest - */ -static void _BLENDAPI -blend_modulate( GLcontext *ctx, GLuint n, const GLubyte mask[], - GLchan rgba[][4], CONST GLchan dest[][4] ) -{ - GLuint i; - (void) ctx; - - for (i=0;i<n;i++) { - if (mask[i]) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = rgba[i][RCOMP] * dest[i][RCOMP]; - rgba[i][GCOMP] = rgba[i][GCOMP] * dest[i][GCOMP]; - rgba[i][BCOMP] = rgba[i][BCOMP] * dest[i][BCOMP]; - rgba[i][ACOMP] = rgba[i][ACOMP] * dest[i][ACOMP]; -#elif CHAN_TYPE == GL_UNSIGNED_SHORT - GLint r = (rgba[i][RCOMP] * dest[i][RCOMP] + 65535) >> 16; - GLint g = (rgba[i][GCOMP] * dest[i][GCOMP] + 65535) >> 16; - GLint b = (rgba[i][BCOMP] * dest[i][BCOMP] + 65535) >> 16; - GLint a = (rgba[i][ACOMP] * dest[i][ACOMP] + 65535) >> 16; - rgba[i][RCOMP] = (GLchan) r; - rgba[i][GCOMP] = (GLchan) g; - rgba[i][BCOMP] = (GLchan) b; - rgba[i][ACOMP] = (GLchan) a; -#else - GLint r = (rgba[i][RCOMP] * dest[i][RCOMP] + 255) >> 8; - GLint g = (rgba[i][GCOMP] * dest[i][GCOMP] + 255) >> 8; - GLint b = (rgba[i][BCOMP] * dest[i][BCOMP] + 255) >> 8; - GLint a = (rgba[i][ACOMP] * dest[i][ACOMP] + 255) >> 8; - rgba[i][RCOMP] = (GLchan) r; - rgba[i][GCOMP] = (GLchan) g; - rgba[i][BCOMP] = (GLchan) b; - rgba[i][ACOMP] = (GLchan) a; -#endif - } - } -} - - - -/* - * General case blend pixels. - * Input: n - number of pixels - * mask - the usual write mask - * In/Out: rgba - the incoming and modified pixels - * Input: dest - the pixels from the dest color buffer - */ -static void _BLENDAPI -blend_general( GLcontext *ctx, GLuint n, const GLubyte mask[], - GLchan rgba[][4], CONST GLchan dest[][4] ) -{ - const GLfloat rscale = 1.0F / CHAN_MAXF; - const GLfloat gscale = 1.0F / CHAN_MAXF; - const GLfloat bscale = 1.0F / CHAN_MAXF; - const GLfloat ascale = 1.0F / CHAN_MAXF; - GLuint i; - - for (i=0;i<n;i++) { - if (mask[i]) { -#if CHAN_TYPE == GL_FLOAT - GLfloat Rs, Gs, Bs, As; /* Source colors */ - GLfloat Rd, Gd, Bd, Ad; /* Dest colors */ -#else - GLint Rs, Gs, Bs, As; /* Source colors */ - GLint Rd, Gd, Bd, Ad; /* Dest colors */ -#endif - GLfloat sR, sG, sB, sA; /* Source scaling */ - GLfloat dR, dG, dB, dA; /* Dest scaling */ - GLfloat r, g, b, a; /* result color */ - - /* Incoming/source Color */ - Rs = rgba[i][RCOMP]; - Gs = rgba[i][GCOMP]; - Bs = rgba[i][BCOMP]; - As = rgba[i][ACOMP]; -#if CHAN_TYPE == GL_FLOAT - /* clamp */ - Rs = MIN2(Rs, CHAN_MAXF); - Gs = MIN2(Gs, CHAN_MAXF); - Bs = MIN2(Bs, CHAN_MAXF); - As = MIN2(As, CHAN_MAXF); -#endif - - /* Frame buffer/dest color */ - Rd = dest[i][RCOMP]; - Gd = dest[i][GCOMP]; - Bd = dest[i][BCOMP]; - Ad = dest[i][ACOMP]; -#if CHAN_TYPE == GL_FLOAT - /* clamp */ - Rd = MIN2(Rd, CHAN_MAXF); - Gd = MIN2(Gd, CHAN_MAXF); - Bd = MIN2(Bd, CHAN_MAXF); - Ad = MIN2(Ad, CHAN_MAXF); -#endif - - /* Source RGB factor */ - switch (ctx->Color.BlendSrcRGB) { - case GL_ZERO: - sR = sG = sB = 0.0F; - break; - case GL_ONE: - sR = sG = sB = 1.0F; - break; - case GL_DST_COLOR: - sR = (GLfloat) Rd * rscale; - sG = (GLfloat) Gd * gscale; - sB = (GLfloat) Bd * bscale; - break; - case GL_ONE_MINUS_DST_COLOR: - sR = 1.0F - (GLfloat) Rd * rscale; - sG = 1.0F - (GLfloat) Gd * gscale; - sB = 1.0F - (GLfloat) Bd * bscale; - break; - case GL_SRC_ALPHA: - sR = sG = sB = (GLfloat) As * ascale; - break; - case GL_ONE_MINUS_SRC_ALPHA: - sR = sG = sB = 1.0F - (GLfloat) As * ascale; - break; - case GL_DST_ALPHA: - sR = sG = sB = (GLfloat) Ad * ascale; - break; - case GL_ONE_MINUS_DST_ALPHA: - sR = sG = sB = 1.0F - (GLfloat) Ad * ascale; - break; - case GL_SRC_ALPHA_SATURATE: - if (As < CHAN_MAX - Ad) { - sR = sG = sB = (GLfloat) As * ascale; - } - else { - sR = sG = sB = 1.0F - (GLfloat) Ad * ascale; - } - break; - case GL_CONSTANT_COLOR: - sR = ctx->Color.BlendColor[0]; - sG = ctx->Color.BlendColor[1]; - sB = ctx->Color.BlendColor[2]; - break; - case GL_ONE_MINUS_CONSTANT_COLOR: - sR = 1.0F - ctx->Color.BlendColor[0]; - sG = 1.0F - ctx->Color.BlendColor[1]; - sB = 1.0F - ctx->Color.BlendColor[2]; - break; - case GL_CONSTANT_ALPHA: - sR = sG = sB = ctx->Color.BlendColor[3]; - break; - case GL_ONE_MINUS_CONSTANT_ALPHA: - sR = sG = sB = 1.0F - ctx->Color.BlendColor[3]; - break; - case GL_SRC_COLOR: /* GL_NV_blend_square */ - sR = (GLfloat) Rs * rscale; - sG = (GLfloat) Gs * gscale; - sB = (GLfloat) Bs * bscale; - break; - case GL_ONE_MINUS_SRC_COLOR: /* GL_NV_blend_square */ - sR = 1.0F - (GLfloat) Rs * rscale; - sG = 1.0F - (GLfloat) Gs * gscale; - sB = 1.0F - (GLfloat) Bs * bscale; - break; - default: - /* this should never happen */ - _mesa_problem(ctx, "Bad blend source RGB factor in do_blend"); - return; - } - - /* Source Alpha factor */ - switch (ctx->Color.BlendSrcA) { - case GL_ZERO: - sA = 0.0F; - break; - case GL_ONE: - sA = 1.0F; - break; - case GL_DST_COLOR: - sA = (GLfloat) Ad * ascale; - break; - case GL_ONE_MINUS_DST_COLOR: - sA = 1.0F - (GLfloat) Ad * ascale; - break; - case GL_SRC_ALPHA: - sA = (GLfloat) As * ascale; - break; - case GL_ONE_MINUS_SRC_ALPHA: - sA = 1.0F - (GLfloat) As * ascale; - break; - case GL_DST_ALPHA: - sA =(GLfloat) Ad * ascale; - break; - case GL_ONE_MINUS_DST_ALPHA: - sA = 1.0F - (GLfloat) Ad * ascale; - break; - case GL_SRC_ALPHA_SATURATE: - sA = 1.0; - break; - case GL_CONSTANT_COLOR: - sA = ctx->Color.BlendColor[3]; - break; - case GL_ONE_MINUS_CONSTANT_COLOR: - sA = 1.0F - ctx->Color.BlendColor[3]; - break; - case GL_CONSTANT_ALPHA: - sA = ctx->Color.BlendColor[3]; - break; - case GL_ONE_MINUS_CONSTANT_ALPHA: - sA = 1.0F - ctx->Color.BlendColor[3]; - break; - case GL_SRC_COLOR: /* GL_NV_blend_square */ - sA = (GLfloat) As * ascale; - break; - case GL_ONE_MINUS_SRC_COLOR: /* GL_NV_blend_square */ - sA = 1.0F - (GLfloat) As * ascale; - break; - default: - /* this should never happen */ - sA = 0.0F; - _mesa_problem(ctx, "Bad blend source A factor in do_blend"); - } - - /* Dest RGB factor */ - switch (ctx->Color.BlendDstRGB) { - case GL_ZERO: - dR = dG = dB = 0.0F; - break; - case GL_ONE: - dR = dG = dB = 1.0F; - break; - case GL_SRC_COLOR: - dR = (GLfloat) Rs * rscale; - dG = (GLfloat) Gs * gscale; - dB = (GLfloat) Bs * bscale; - break; - case GL_ONE_MINUS_SRC_COLOR: - dR = 1.0F - (GLfloat) Rs * rscale; - dG = 1.0F - (GLfloat) Gs * gscale; - dB = 1.0F - (GLfloat) Bs * bscale; - break; - case GL_SRC_ALPHA: - dR = dG = dB = (GLfloat) As * ascale; - break; - case GL_ONE_MINUS_SRC_ALPHA: - dR = dG = dB = 1.0F - (GLfloat) As * ascale; - break; - case GL_DST_ALPHA: - dR = dG = dB = (GLfloat) Ad * ascale; - break; - case GL_ONE_MINUS_DST_ALPHA: - dR = dG = dB = 1.0F - (GLfloat) Ad * ascale; - break; - case GL_CONSTANT_COLOR: - dR = ctx->Color.BlendColor[0]; - dG = ctx->Color.BlendColor[1]; - dB = ctx->Color.BlendColor[2]; - break; - case GL_ONE_MINUS_CONSTANT_COLOR: - dR = 1.0F - ctx->Color.BlendColor[0]; - dG = 1.0F - ctx->Color.BlendColor[1]; - dB = 1.0F - ctx->Color.BlendColor[2]; - break; - case GL_CONSTANT_ALPHA: - dR = dG = dB = ctx->Color.BlendColor[3]; - break; - case GL_ONE_MINUS_CONSTANT_ALPHA: - dR = dG = dB = 1.0F - ctx->Color.BlendColor[3]; - break; - case GL_DST_COLOR: /* GL_NV_blend_square */ - dR = (GLfloat) Rd * rscale; - dG = (GLfloat) Gd * gscale; - dB = (GLfloat) Bd * bscale; - break; - case GL_ONE_MINUS_DST_COLOR: /* GL_NV_blend_square */ - dR = 1.0F - (GLfloat) Rd * rscale; - dG = 1.0F - (GLfloat) Gd * gscale; - dB = 1.0F - (GLfloat) Bd * bscale; - break; - default: - /* this should never happen */ - dR = dG = dB = 0.0F; - _mesa_problem(ctx, "Bad blend dest RGB factor in do_blend"); - } - - /* Dest Alpha factor */ - switch (ctx->Color.BlendDstA) { - case GL_ZERO: - dA = 0.0F; - break; - case GL_ONE: - dA = 1.0F; - break; - case GL_SRC_COLOR: - dA = (GLfloat) As * ascale; - break; - case GL_ONE_MINUS_SRC_COLOR: - dA = 1.0F - (GLfloat) As * ascale; - break; - case GL_SRC_ALPHA: - dA = (GLfloat) As * ascale; - break; - case GL_ONE_MINUS_SRC_ALPHA: - dA = 1.0F - (GLfloat) As * ascale; - break; - case GL_DST_ALPHA: - dA = (GLfloat) Ad * ascale; - break; - case GL_ONE_MINUS_DST_ALPHA: - dA = 1.0F - (GLfloat) Ad * ascale; - break; - case GL_CONSTANT_COLOR: - dA = ctx->Color.BlendColor[3]; - break; - case GL_ONE_MINUS_CONSTANT_COLOR: - dA = 1.0F - ctx->Color.BlendColor[3]; - break; - case GL_CONSTANT_ALPHA: - dA = ctx->Color.BlendColor[3]; - break; - case GL_ONE_MINUS_CONSTANT_ALPHA: - dA = 1.0F - ctx->Color.BlendColor[3]; - break; - case GL_DST_COLOR: /* GL_NV_blend_square */ - dA = (GLfloat) Ad * ascale; - break; - case GL_ONE_MINUS_DST_COLOR: /* GL_NV_blend_square */ - dA = 1.0F - (GLfloat) Ad * ascale; - break; - default: - /* this should never happen */ - dA = 0.0F; - _mesa_problem(ctx, "Bad blend dest A factor in do_blend"); - return; - } - - /* Due to round-off problems we have to clamp against zero. */ - /* Optimization: we don't have to do this for all src & dst factors */ - if (dA < 0.0F) dA = 0.0F; - if (dR < 0.0F) dR = 0.0F; - if (dG < 0.0F) dG = 0.0F; - if (dB < 0.0F) dB = 0.0F; - if (sA < 0.0F) sA = 0.0F; - if (sR < 0.0F) sR = 0.0F; - if (sG < 0.0F) sG = 0.0F; - if (sB < 0.0F) sB = 0.0F; - - ASSERT( sR <= 1.0 ); - ASSERT( sG <= 1.0 ); - ASSERT( sB <= 1.0 ); - ASSERT( sA <= 1.0 ); - ASSERT( dR <= 1.0 ); - ASSERT( dG <= 1.0 ); - ASSERT( dB <= 1.0 ); - ASSERT( dA <= 1.0 ); - - /* compute blended color */ -#if CHAN_TYPE == GL_FLOAT - if (ctx->Color.BlendEquationRGB==GL_FUNC_ADD) { - r = Rs * sR + Rd * dR; - g = Gs * sG + Gd * dG; - b = Bs * sB + Bd * dB; - a = As * sA + Ad * dA; - } - else if (ctx->Color.BlendEquationRGB==GL_FUNC_SUBTRACT) { - r = Rs * sR - Rd * dR; - g = Gs * sG - Gd * dG; - b = Bs * sB - Bd * dB; - a = As * sA - Ad * dA; - } - else if (ctx->Color.BlendEquationRGB==GL_FUNC_REVERSE_SUBTRACT) { - r = Rd * dR - Rs * sR; - g = Gd * dG - Gs * sG; - b = Bd * dB - Bs * sB; - a = Ad * dA - As * sA; - } - else if (ctx->Color.BlendEquationRGB==GL_MIN) { - r = MIN2( Rd, Rs ); - g = MIN2( Gd, Gs ); - b = MIN2( Bd, Bs ); - } - else if (ctx->Color.BlendEquationRGB==GL_MAX) { - r = MAX2( Rd, Rs ); - g = MAX2( Gd, Gs ); - b = MAX2( Bd, Bs ); - } - else { - /* should never get here */ - r = g = b = 0.0F; /* silence uninitialized var warning */ - _mesa_problem(ctx, "unexpected BlendEquation in blend_general()"); - } - - if (ctx->Color.BlendEquationA==GL_FUNC_ADD) { - a = As * sA + Ad * dA; - } - else if (ctx->Color.BlendEquationA==GL_FUNC_SUBTRACT) { - a = As * sA - Ad * dA; - } - else if (ctx->Color.BlendEquationA==GL_FUNC_REVERSE_SUBTRACT) { - a = Ad * dA - As * sA; - } - else if (ctx->Color.BlendEquationA==GL_MIN) { - a = MIN2( Ad, As ); - } - else if (ctx->Color.BlendEquationA==GL_MAX) { - a = MAX2( Ad, As ); - } - else { - /* should never get here */ - a = 0.0F; /* silence uninitialized var warning */ - _mesa_problem(ctx, "unexpected BlendEquation in blend_general()"); - } - - /* final clamping */ - rgba[i][RCOMP] = MAX2( r, 0.0F ); - rgba[i][GCOMP] = MAX2( g, 0.0F ); - rgba[i][BCOMP] = MAX2( b, 0.0F ); - rgba[i][ACOMP] = CLAMP( a, 0.0F, CHAN_MAXF ); -#else - if (ctx->Color.BlendEquationRGB==GL_FUNC_ADD) { - r = Rs * sR + Rd * dR + 0.5F; - g = Gs * sG + Gd * dG + 0.5F; - b = Bs * sB + Bd * dB + 0.5F; - } - else if (ctx->Color.BlendEquationRGB==GL_FUNC_SUBTRACT) { - r = Rs * sR - Rd * dR + 0.5F; - g = Gs * sG - Gd * dG + 0.5F; - b = Bs * sB - Bd * dB + 0.5F; - } - else if (ctx->Color.BlendEquationRGB==GL_FUNC_REVERSE_SUBTRACT) { - r = Rd * dR - Rs * sR + 0.5F; - g = Gd * dG - Gs * sG + 0.5F; - b = Bd * dB - Bs * sB + 0.5F; - } - else if (ctx->Color.BlendEquationRGB==GL_MIN) { - r = MIN2( Rd, Rs ); - g = MIN2( Gd, Gs ); - b = MIN2( Bd, Bs ); - } - else if (ctx->Color.BlendEquationRGB==GL_MAX) { - r = MAX2( Rd, Rs ); - g = MAX2( Gd, Gs ); - b = MAX2( Bd, Bs ); - } - else { - /* should never get here */ - r = g = b = 0.0F; /* silence uninitialized var warning */ - _mesa_problem(ctx, "unexpected BlendEquation in blend_general()"); - } - - if (ctx->Color.BlendEquationA==GL_FUNC_ADD) { - a = As * sA + Ad * dA + 0.5F; - } - else if (ctx->Color.BlendEquationA==GL_FUNC_SUBTRACT) { - a = As * sA - Ad * dA + 0.5F; - } - else if (ctx->Color.BlendEquationA==GL_FUNC_REVERSE_SUBTRACT) { - a = Ad * dA - As * sA + 0.5F; - } - else if (ctx->Color.BlendEquationA==GL_MIN) { - a = MIN2( Ad, As ); - } - else if (ctx->Color.BlendEquationA==GL_MAX) { - a = MAX2( Ad, As ); - } - else { - /* should never get here */ - a = 0.0F; /* silence uninitialized var warning */ - _mesa_problem(ctx, "unexpected BlendEquation in blend_general()"); - } - - /* final clamping */ - rgba[i][RCOMP] = (GLchan) (GLint) CLAMP( r, 0.0F, CHAN_MAXF ); - rgba[i][GCOMP] = (GLchan) (GLint) CLAMP( g, 0.0F, CHAN_MAXF ); - rgba[i][BCOMP] = (GLchan) (GLint) CLAMP( b, 0.0F, CHAN_MAXF ); - rgba[i][ACOMP] = (GLchan) (GLint) CLAMP( a, 0.0F, CHAN_MAXF ); -#endif - } - } -} - - -/* - * Analyze current blending parameters to pick fastest blending function. - * Result: the ctx->Color.BlendFunc pointer is updated. - */ -void _swrast_choose_blend_func( GLcontext *ctx ) -{ - const GLenum eq = ctx->Color.BlendEquationRGB; - const GLenum srcRGB = ctx->Color.BlendSrcRGB; - const GLenum dstRGB = ctx->Color.BlendDstRGB; - const GLenum srcA = ctx->Color.BlendSrcA; - const GLenum dstA = ctx->Color.BlendDstA; - - if (ctx->Color.BlendEquationRGB != ctx->Color.BlendEquationA) { - SWRAST_CONTEXT(ctx)->BlendFunc = blend_general; - } - else if (eq==GL_MIN) { - /* Note: GL_MIN ignores the blending weight factors */ -#if defined(USE_MMX_ASM) - if ( cpu_has_mmx ) { - SWRAST_CONTEXT(ctx)->BlendFunc = _mesa_mmx_blend_min; - } - else -#endif - SWRAST_CONTEXT(ctx)->BlendFunc = blend_min; - } - else if (eq==GL_MAX) { - /* Note: GL_MAX ignores the blending weight factors */ -#if defined(USE_MMX_ASM) - if ( cpu_has_mmx ) { - SWRAST_CONTEXT(ctx)->BlendFunc = _mesa_mmx_blend_max; - } - else -#endif - SWRAST_CONTEXT(ctx)->BlendFunc = blend_max; - } - else if (srcRGB != srcA || dstRGB != dstA) { - SWRAST_CONTEXT(ctx)->BlendFunc = blend_general; - } - else if (eq==GL_FUNC_ADD && srcRGB==GL_SRC_ALPHA - && dstRGB==GL_ONE_MINUS_SRC_ALPHA) { -#if defined(USE_MMX_ASM) - if ( cpu_has_mmx ) { - SWRAST_CONTEXT(ctx)->BlendFunc = _mesa_mmx_blend_transparency; - } - else -#endif - SWRAST_CONTEXT(ctx)->BlendFunc = blend_transparency; - } - else if (eq==GL_FUNC_ADD && srcRGB==GL_ONE && dstRGB==GL_ONE) { -#if defined(USE_MMX_ASM) - if ( cpu_has_mmx ) { - SWRAST_CONTEXT(ctx)->BlendFunc = _mesa_mmx_blend_add; - } - else -#endif - SWRAST_CONTEXT(ctx)->BlendFunc = blend_add; - } - else if (((eq==GL_FUNC_ADD || eq==GL_FUNC_REVERSE_SUBTRACT) - && (srcRGB==GL_ZERO && dstRGB==GL_SRC_COLOR)) - || - ((eq==GL_FUNC_ADD || eq==GL_FUNC_SUBTRACT) - && (srcRGB==GL_DST_COLOR && dstRGB==GL_ZERO))) { -#if defined(USE_MMX_ASM) - if ( cpu_has_mmx ) { - SWRAST_CONTEXT(ctx)->BlendFunc = _mesa_mmx_blend_modulate; - } - else -#endif - SWRAST_CONTEXT(ctx)->BlendFunc = blend_modulate; - } - else if (eq==GL_FUNC_ADD && srcRGB == GL_ZERO && dstRGB == GL_ONE) { - SWRAST_CONTEXT(ctx)->BlendFunc = blend_noop; - } - else if (eq==GL_FUNC_ADD && srcRGB == GL_ONE && dstRGB == GL_ZERO) { - SWRAST_CONTEXT(ctx)->BlendFunc = blend_replace; - } - else { - SWRAST_CONTEXT(ctx)->BlendFunc = blend_general; - } -} - - - -/* - * Apply the blending operator to a span of pixels. - * We can handle horizontal runs of pixels (spans) or arrays of x/y - * pixel coordinates. - */ -void -_swrast_blend_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLchan rgba[][4]) -{ - GLchan framebuffer[MAX_WIDTH][4]; - - ASSERT(span->end <= MAX_WIDTH); - ASSERT(span->arrayMask & SPAN_RGBA); - ASSERT(!ctx->Color._LogicOpEnabled); - - /* Read span of current frame buffer pixels */ - if (span->arrayMask & SPAN_XY) { - /* array of x/y pixel coords */ - _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y, - framebuffer, 4 * sizeof(GLchan)); - } - else { - /* horizontal run of pixels */ - _swrast_read_rgba_span(ctx, rb, span->end, span->x, span->y, - framebuffer); - } - - SWRAST_CONTEXT(ctx)->BlendFunc( ctx, span->end, span->array->mask, rgba, - (const GLchan (*)[4]) framebuffer ); -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_blend.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_blend.h deleted file mode 100644 index c95193215..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_blend.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_BLEND_H -#define S_BLEND_H - - -#include "mtypes.h" -#include "s_context.h" - - -extern void -_swrast_blend_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLchan rgba[][4]); - - -extern void -_swrast_choose_blend_func(GLcontext *ctx); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_buffers.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_buffers.c deleted file mode 100644 index a7dc8a3af..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_buffers.c +++ /dev/null @@ -1,408 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.4.1 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "colormac.h" -#include "macros.h" -#include "imports.h" -#include "mtypes.h" -#include "fbobject.h" - -#include "s_accum.h" -#include "s_context.h" -#include "s_depth.h" -#include "s_masking.h" -#include "s_stencil.h" - - -/** - * Clear the color buffer when glColorMask is in effect. - */ -static void -clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb) -{ - const GLint x = ctx->DrawBuffer->_Xmin; - const GLint y = ctx->DrawBuffer->_Ymin; - const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin; - const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin; - GLchan clearColor[4]; - GLint i; - - ASSERT(ctx->Visual.rgbMode); - ASSERT(rb->PutRow); - - CLAMPED_FLOAT_TO_CHAN(clearColor[RCOMP], ctx->Color.ClearColor[0]); - CLAMPED_FLOAT_TO_CHAN(clearColor[GCOMP], ctx->Color.ClearColor[1]); - CLAMPED_FLOAT_TO_CHAN(clearColor[BCOMP], ctx->Color.ClearColor[2]); - CLAMPED_FLOAT_TO_CHAN(clearColor[ACOMP], ctx->Color.ClearColor[3]); - - for (i = 0; i < height; i++) { - GLchan rgba[MAX_WIDTH][4]; - GLint j; - for (j = 0; j < width; j++) { - COPY_CHAN4(rgba[j], clearColor); - } - _swrast_mask_rgba_array( ctx, rb, width, x, y + i, rgba ); - rb->PutRow(ctx, rb, width, x, y + i, rgba, NULL); - } -} - - -/** - * Clear color index buffer with masking. - */ -static void -clear_ci_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb) -{ - const GLint x = ctx->DrawBuffer->_Xmin; - const GLint y = ctx->DrawBuffer->_Ymin; - const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin; - const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin; - GLuint span[MAX_WIDTH]; - GLubyte mask[MAX_WIDTH]; - GLint i, j; - - ASSERT(!ctx->Visual.rgbMode); - - MEMSET( mask, 1, width ); - for (i = 0; i < height;i++) { - for (j = 0; j < width;j++) { - span[j] = ctx->Color.ClearIndex; - } - _swrast_mask_ci_array(ctx, rb, width, x, y + i, span); - ASSERT(rb->PutRow); - ASSERT(rb->DataType == GL_UNSIGNED_INT); - rb->PutRow(ctx, rb, width, x, y + i, span, mask); - } -} - - -/** - * Clear an rgba color buffer without channel masking. - */ -static void -clear_rgba_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) -{ - const GLint x = ctx->DrawBuffer->_Xmin; - const GLint y = ctx->DrawBuffer->_Ymin; - const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin; - const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin; - GLubyte clear8[4]; - GLushort clear16[4]; - GLvoid *clearVal; - GLint i; - - ASSERT(ctx->Visual.rgbMode); - - ASSERT(ctx->Color.ColorMask[0] && - ctx->Color.ColorMask[1] && - ctx->Color.ColorMask[2] && - ctx->Color.ColorMask[3]); - - ASSERT(rb->PutMonoRow); - - switch (rb->DataType) { - case GL_UNSIGNED_BYTE: - UNCLAMPED_FLOAT_TO_UBYTE(clear8[0], ctx->Color.ClearColor[0]); - UNCLAMPED_FLOAT_TO_UBYTE(clear8[1], ctx->Color.ClearColor[1]); - UNCLAMPED_FLOAT_TO_UBYTE(clear8[2], ctx->Color.ClearColor[2]); - UNCLAMPED_FLOAT_TO_UBYTE(clear8[3], ctx->Color.ClearColor[3]); - clearVal = clear8; - break; - case GL_UNSIGNED_SHORT: - UNCLAMPED_FLOAT_TO_USHORT(clear16[0], ctx->Color.ClearColor[0]); - UNCLAMPED_FLOAT_TO_USHORT(clear16[1], ctx->Color.ClearColor[1]); - UNCLAMPED_FLOAT_TO_USHORT(clear16[2], ctx->Color.ClearColor[2]); - UNCLAMPED_FLOAT_TO_USHORT(clear16[3], ctx->Color.ClearColor[3]); - clearVal = clear16; - break; - case GL_FLOAT: - clearVal = ctx->Color.ClearColor; - break; - default: - _mesa_problem(ctx, "Bad rb DataType in clear_color_buffer"); - return; - } - - for (i = 0; i < height; i++) { - rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL); - } -} - - -/** - * Clear color index buffer without masking. - */ -static void -clear_ci_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) -{ - const GLint x = ctx->DrawBuffer->_Xmin; - const GLint y = ctx->DrawBuffer->_Ymin; - const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin; - const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin; - GLubyte clear8; - GLushort clear16; - GLuint clear32; - GLvoid *clearVal; - GLint i; - - ASSERT(!ctx->Visual.rgbMode); - - ASSERT((ctx->Color.IndexMask & ((1 << ctx->Visual.indexBits) - 1)) - == (GLuint) ((1 << ctx->Visual.indexBits) - 1)); - - ASSERT(rb->PutMonoRow); - - /* setup clear value */ - switch (rb->DataType) { - case GL_UNSIGNED_BYTE: - clear8 = (GLubyte) ctx->Color.ClearIndex; - clearVal = &clear8; - break; - case GL_UNSIGNED_SHORT: - clear16 = (GLushort) ctx->Color.ClearIndex; - clearVal = &clear16; - break; - case GL_UNSIGNED_INT: - clear32 = ctx->Color.ClearIndex; - clearVal = &clear32; - break; - default: - _mesa_problem(ctx, "Bad rb DataType in clear_color_buffer"); - return; - } - - for (i = 0; i < height; i++) - rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL); -} - - -/** - * Clear the front/back/left/right/aux color buffers. - * This function is usually only called if the device driver can't - * clear its own color buffers for some reason (such as with masking). - */ -static void -clear_color_buffers(GLcontext *ctx) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLboolean masking; - GLuint i; - - if (ctx->Visual.rgbMode) { - if (ctx->Color.ColorMask[0] && - ctx->Color.ColorMask[1] && - ctx->Color.ColorMask[2] && - ctx->Color.ColorMask[3]) { - masking = GL_FALSE; - } - else { - masking = GL_TRUE; - } - } - else { - const GLuint indexBits = (1 << ctx->Visual.indexBits) - 1; - if ((ctx->Color.IndexMask & indexBits) == indexBits) { - masking = GL_FALSE; - } - else { - masking = GL_TRUE; - } - } - - for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers[0]; i++) { - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0][i]; -#if OLD_RENDERBUFFER - /* SetBuffer will go away */ - if (swrast->Driver.SetBuffer) - swrast->Driver.SetBuffer(ctx, ctx->DrawBuffer, - ctx->DrawBuffer->_ColorDrawBit[0][i]); -#endif - - if (ctx->Visual.rgbMode) { - if (masking) { - clear_rgba_buffer_with_masking(ctx, rb); - } - else { - clear_rgba_buffer(ctx, rb); - } - } - else { - if (masking) { - clear_ci_buffer_with_masking(ctx, rb); - } - else { - clear_ci_buffer(ctx, rb); - } - } - } - - /* restore default read/draw buffer */ - _swrast_use_draw_buffer(ctx); -} - - -/** - * Called via the device driver's ctx->Driver.Clear() function if the - * device driver can't clear one or more of the buffers itself. - * \param mask bitwise-OR of DD_*_BIT flags. - * \param all if GL_TRUE, clear whole buffer, else clear specified region. - */ -void -_swrast_Clear(GLcontext *ctx, GLbitfield mask, - GLboolean all, GLint x, GLint y, GLint width, GLint height) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - (void) all; (void) x; (void) y; (void) width; (void) height; - -#ifdef DEBUG_FOO - { - const GLbitfield legalBits = - BUFFER_BIT_FRONT_LEFT | - BUFFER_BIT_FRONT_RIGHT | - BUFFER_BIT_BACK_LEFT | - BUFFER_BIT_BACK_RIGHT | - BUFFER_BIT_DEPTH | - BUFFER_BIT_STENCIL | - BUFFER_BIT_ACCUM | - BUFFER_BIT_AUX0 | - BUFFER_BIT_AUX1 | - BUFFER_BIT_AUX2 | - BUFFER_BIT_AUX3; - assert((mask & (~legalBits)) == 0); - } -#endif - - RENDER_START(swrast,ctx); - - /* do software clearing here */ - if (mask) { - if (mask & ctx->DrawBuffer->_ColorDrawBufferMask[0]) { - clear_color_buffers(ctx); - } - if (mask & BUFFER_BIT_DEPTH) { - struct gl_renderbuffer *rb - = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; - _swrast_clear_depth_buffer(ctx, rb); - } - if (mask & BUFFER_BIT_ACCUM) { - struct gl_renderbuffer *rb - = ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer; - _swrast_clear_accum_buffer(ctx, rb); - } - if (mask & BUFFER_BIT_STENCIL) { - struct gl_renderbuffer *rb - = ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer; - _swrast_clear_stencil_buffer(ctx, rb); - } - } - - RENDER_FINISH(swrast,ctx); -} - - -/* - * Fallback for ctx->Driver.DrawBuffer() - */ -void -_swrast_DrawBuffer( GLcontext *ctx, GLenum mode ) -{ - (void) mode; - _swrast_use_draw_buffer(ctx); -} - - -/* - * Fallback for ctx->Driver.DrawBuffers() - */ -void -_swrast_DrawBuffers( GLcontext *ctx, GLsizei n, const GLenum *buffers ) -{ - _swrast_use_draw_buffer(ctx); -} - - -/* - * Setup things so that we read/write spans from the user-designated - * read buffer (set via glReadPixels). We usually just have to call - * this for glReadPixels, glCopyPixels, etc. - */ -void -_swrast_use_read_buffer( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - /* Do this so the software-emulated alpha plane span functions work! */ - swrast->CurrentBufferBit = ctx->ReadBuffer->_ColorReadBufferMask; - /* Tell the device driver where to read/write spans */ - if (swrast->Driver.SetBuffer) - swrast->Driver.SetBuffer(ctx, ctx->ReadBuffer, swrast->CurrentBufferBit); -} - - -/* - * Setup things so that we read/write spans from the default draw buffer. - * This is the usual mode that Mesa's software rasterizer operates in. - */ -void -_swrast_use_draw_buffer( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - /* The user can specify rendering to zero, one, two, or four color - * buffers simultaneously with glDrawBuffer()! - * We don't expect the span/point/line/triangle functions to deal with - * that mess so we'll iterate over the multiple buffers as needed. - * But usually we only render to one color buffer at a time. - * We set ctx->Color._DriverDrawBuffer to that buffer and tell the - * device driver to use that buffer. - * Look in s_span.c's multi_write_rgba_span() function to see how - * we loop over multiple color buffers when needed. - */ - - if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_FRONT_LEFT) - swrast->CurrentBufferBit = BUFFER_BIT_FRONT_LEFT; - else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_BACK_LEFT) - swrast->CurrentBufferBit = BUFFER_BIT_BACK_LEFT; - else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_FRONT_RIGHT) - swrast->CurrentBufferBit = BUFFER_BIT_FRONT_RIGHT; - else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_BACK_RIGHT) - swrast->CurrentBufferBit = BUFFER_BIT_BACK_RIGHT; - else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_AUX0) - swrast->CurrentBufferBit = BUFFER_BIT_AUX0; - else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_AUX1) - swrast->CurrentBufferBit = BUFFER_BIT_AUX1; - else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_AUX2) - swrast->CurrentBufferBit = BUFFER_BIT_AUX2; - else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_AUX3) - swrast->CurrentBufferBit = BUFFER_BIT_AUX3; - else - /* glDrawBuffer(GL_NONE) */ - swrast->CurrentBufferBit = BUFFER_BIT_FRONT_LEFT; /* we always have this buffer */ - - if (swrast->Driver.SetBuffer) - swrast->Driver.SetBuffer(ctx, ctx->DrawBuffer, swrast->CurrentBufferBit); -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_context.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_context.c deleted file mode 100644 index a12703845..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_context.c +++ /dev/null @@ -1,750 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: - * Keith Whitwell <keith@tungstengraphics.com> - * Brian Paul - */ - -#include "imports.h" -#include "bufferobj.h" -#include "context.h" -#include "colormac.h" -#include "mtypes.h" -#include "program.h" -#include "texobj.h" -#include "nvfragprog.h" - -#include "swrast.h" -#include "s_blend.h" -#include "s_context.h" -#include "s_lines.h" -#include "s_points.h" -#include "s_span.h" -#include "s_triangle.h" -#include "s_texture.h" - - -/** - * Recompute the value of swrast->_RasterMask, etc. according to - * the current context. The _RasterMask field can be easily tested by - * drivers to determine certain basic GL state (does the primitive need - * stenciling, logic-op, fog, etc?). - */ -static void -_swrast_update_rasterflags( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLuint rasterMask = 0; - - if (ctx->Color.AlphaEnabled) rasterMask |= ALPHATEST_BIT; - if (ctx->Color.BlendEnabled) rasterMask |= BLEND_BIT; - if (ctx->Depth.Test) rasterMask |= DEPTH_BIT; - if (swrast->_FogEnabled) rasterMask |= FOG_BIT; - if (ctx->Scissor.Enabled) rasterMask |= CLIP_BIT; - if (ctx->Stencil.Enabled) rasterMask |= STENCIL_BIT; - if (ctx->Visual.rgbMode) { - const GLuint colorMask = *((GLuint *) &ctx->Color.ColorMask); - if (colorMask != 0xffffffff) rasterMask |= MASKING_BIT; - if (ctx->Color._LogicOpEnabled) rasterMask |= LOGIC_OP_BIT; - if (ctx->Texture._EnabledUnits) rasterMask |= TEXTURE_BIT; - } - else { - if (ctx->Color.IndexMask != 0xffffffff) rasterMask |= MASKING_BIT; - if (ctx->Color.IndexLogicOpEnabled) rasterMask |= LOGIC_OP_BIT; - } - - if ( ctx->Viewport.X < 0 - || ctx->Viewport.X + ctx->Viewport.Width > (GLint) ctx->DrawBuffer->Width - || ctx->Viewport.Y < 0 - || ctx->Viewport.Y + ctx->Viewport.Height > (GLint) ctx->DrawBuffer->Height) { - rasterMask |= CLIP_BIT; - } - - if (ctx->Depth.OcclusionTest || ctx->Occlusion.Active) - rasterMask |= OCCLUSION_BIT; - - - /* If we're not drawing to exactly one color buffer set the - * MULTI_DRAW_BIT flag. Also set it if we're drawing to no - * buffers or the RGBA or CI mask disables all writes. - */ - if (ctx->DrawBuffer->_NumColorDrawBuffers[0] != 1) { - /* more than one color buffer designated for writing (or zero buffers) */ - rasterMask |= MULTI_DRAW_BIT; - } - else if (ctx->Visual.rgbMode && *((GLuint *) ctx->Color.ColorMask) == 0) { - rasterMask |= MULTI_DRAW_BIT; /* all RGBA channels disabled */ - } - else if (!ctx->Visual.rgbMode && ctx->Color.IndexMask==0) { - rasterMask |= MULTI_DRAW_BIT; /* all color index bits disabled */ - } - - if (ctx->FragmentProgram._Active) { - rasterMask |= FRAGPROG_BIT; - } - - if (ctx->ATIFragmentShader._Enabled) { - rasterMask |= ATIFRAGSHADER_BIT; - } - - SWRAST_CONTEXT(ctx)->_RasterMask = rasterMask; -} - - -/** - * Examine polycon culls tate to compute the _BackfaceSign field. - * _BackfaceSign will be 0 if no culling, -1 if culling back-faces, - * and 1 if culling front-faces. The Polygon FrontFace state also - * factors in. - */ -static void -_swrast_update_polygon( GLcontext *ctx ) -{ - GLfloat backface_sign = 1; - - if (ctx->Polygon.CullFlag) { - backface_sign = 1; - switch(ctx->Polygon.CullFaceMode) { - case GL_BACK: - if(ctx->Polygon.FrontFace==GL_CCW) - backface_sign = -1; - break; - case GL_FRONT: - if(ctx->Polygon.FrontFace!=GL_CCW) - backface_sign = -1; - break; - default: - case GL_FRONT_AND_BACK: - backface_sign = 0; - break; - } - } - else { - backface_sign = 0; - } - - SWRAST_CONTEXT(ctx)->_BackfaceSign = backface_sign; -} - - -/** - * Update the _PreferPixelFog field to indicate if we need to compute - * fog factors per-fragment. - */ -static void -_swrast_update_fog_hint( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - swrast->_PreferPixelFog = (!swrast->AllowVertexFog || - ctx->FragmentProgram._Enabled || /* not _Active! */ - (ctx->Hint.Fog == GL_NICEST && - swrast->AllowPixelFog)); -} - - - -/** - * Update the swrast->_AnyTextureCombine flag. - */ -static void -_swrast_update_texture_env( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLuint i; - swrast->_AnyTextureCombine = GL_FALSE; - for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { - if (ctx->Texture.Unit[i].EnvMode == GL_COMBINE_EXT || - ctx->Texture.Unit[i].EnvMode == GL_COMBINE4_NV) { - swrast->_AnyTextureCombine = GL_TRUE; - return; - } - } -} - - -/** - * Update swrast->_FogColor and swrast->_FogEnable values. - */ -static void -_swrast_update_fog_state( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - /* convert fog color to GLchan values */ - CLAMPED_FLOAT_TO_CHAN(swrast->_FogColor[RCOMP], ctx->Fog.Color[RCOMP]); - CLAMPED_FLOAT_TO_CHAN(swrast->_FogColor[GCOMP], ctx->Fog.Color[GCOMP]); - CLAMPED_FLOAT_TO_CHAN(swrast->_FogColor[BCOMP], ctx->Fog.Color[BCOMP]); - - /* determine if fog is needed, and if so, which fog mode */ - swrast->_FogEnabled = GL_FALSE; - if (ctx->FragmentProgram._Active) { - if (ctx->FragmentProgram._Current->Base.Target==GL_FRAGMENT_PROGRAM_ARB) { - const struct fragment_program *p - = (struct fragment_program *) ctx->FragmentProgram._Current; - if (p->FogOption != GL_NONE) { - swrast->_FogEnabled = GL_TRUE; - swrast->_FogMode = p->FogOption; - } - } - } - else if (ctx->Fog.Enabled) { - swrast->_FogEnabled = GL_TRUE; - swrast->_FogMode = ctx->Fog.Mode; - } -} - - -/** - * Update state for running fragment programs. Basically, load the - * program parameters with current state values. - */ -static void -_swrast_update_fragment_program( GLcontext *ctx ) -{ - if (ctx->FragmentProgram._Active) { - struct fragment_program *program = ctx->FragmentProgram._Current; - _mesa_load_state_parameters(ctx, program->Parameters); - } -} - - - -#define _SWRAST_NEW_DERIVED (_SWRAST_NEW_RASTERMASK | \ - _NEW_TEXTURE | \ - _NEW_HINT | \ - _NEW_POLYGON ) - -/* State referenced by _swrast_choose_triangle, _swrast_choose_line. - */ -#define _SWRAST_NEW_TRIANGLE (_SWRAST_NEW_DERIVED | \ - _NEW_RENDERMODE| \ - _NEW_POLYGON| \ - _NEW_DEPTH| \ - _NEW_STENCIL| \ - _NEW_COLOR| \ - _NEW_TEXTURE| \ - _SWRAST_NEW_RASTERMASK| \ - _NEW_LIGHT| \ - _NEW_FOG | \ - _DD_NEW_SEPARATE_SPECULAR) - -#define _SWRAST_NEW_LINE (_SWRAST_NEW_DERIVED | \ - _NEW_RENDERMODE| \ - _NEW_LINE| \ - _NEW_TEXTURE| \ - _NEW_LIGHT| \ - _NEW_FOG| \ - _NEW_DEPTH | \ - _DD_NEW_SEPARATE_SPECULAR) - -#define _SWRAST_NEW_POINT (_SWRAST_NEW_DERIVED | \ - _NEW_RENDERMODE | \ - _NEW_POINT | \ - _NEW_TEXTURE | \ - _NEW_LIGHT | \ - _NEW_FOG | \ - _DD_NEW_SEPARATE_SPECULAR) - -#define _SWRAST_NEW_TEXTURE_SAMPLE_FUNC _NEW_TEXTURE - -#define _SWRAST_NEW_TEXTURE_ENV_MODE _NEW_TEXTURE - -#define _SWRAST_NEW_BLEND_FUNC _NEW_COLOR - - - -/** - * Stub for swrast->Triangle to select a true triangle function - * after a state change. - */ -static void -_swrast_validate_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - _swrast_validate_derived( ctx ); - swrast->choose_triangle( ctx ); - - if (ctx->Texture._EnabledUnits == 0 - && NEED_SECONDARY_COLOR(ctx) - && !ctx->FragmentProgram._Active) { - /* separate specular color, but no texture */ - swrast->SpecTriangle = swrast->Triangle; - swrast->Triangle = _swrast_add_spec_terms_triangle; - } - - swrast->Triangle( ctx, v0, v1, v2 ); -} - -/** - * Called via swrast->Line. Examine current GL state and choose a software - * line routine. Then call it. - */ -static void -_swrast_validate_line( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1 ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - _swrast_validate_derived( ctx ); - swrast->choose_line( ctx ); - - if (ctx->Texture._EnabledUnits == 0 - && NEED_SECONDARY_COLOR(ctx) - && !ctx->FragmentProgram._Active) { - swrast->SpecLine = swrast->Line; - swrast->Line = _swrast_add_spec_terms_line; - } - - - swrast->Line( ctx, v0, v1 ); -} - -/** - * Called via swrast->Point. Examine current GL state and choose a software - * point routine. Then call it. - */ -static void -_swrast_validate_point( GLcontext *ctx, const SWvertex *v0 ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - _swrast_validate_derived( ctx ); - swrast->choose_point( ctx ); - - if (ctx->Texture._EnabledUnits == 0 - && NEED_SECONDARY_COLOR(ctx) - && !ctx->FragmentProgram._Active) { - swrast->SpecPoint = swrast->Point; - swrast->Point = _swrast_add_spec_terms_point; - } - - swrast->Point( ctx, v0 ); -} - - -/** - * Called via swrast->BlendFunc. Examine GL state to choose a blending - * function, then call it. - */ -static void _ASMAPI -_swrast_validate_blend_func( GLcontext *ctx, GLuint n, - const GLubyte mask[], - GLchan src[][4], - CONST GLchan dst[][4] ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - _swrast_validate_derived( ctx ); - _swrast_choose_blend_func( ctx ); - - swrast->BlendFunc( ctx, n, mask, src, dst ); -} - - -/** - * Called via the swrast->TextureSample[i] function pointer. - * Basically, given a texture object, an array of texture coords - * and an array of level-of-detail values, return an array of colors. - * In this case, determine the correct texture sampling routine - * (depending on filter mode, texture dimensions, etc) then call the - * sampler routine. - */ -static void -_swrast_validate_texture_sample( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - _swrast_validate_derived( ctx ); - - /* Compute min/mag filter threshold */ - if (tObj && tObj->MinFilter != tObj->MagFilter) { - if (tObj->MagFilter == GL_LINEAR - && (tObj->MinFilter == GL_NEAREST_MIPMAP_NEAREST || - tObj->MinFilter == GL_NEAREST_MIPMAP_LINEAR)) { - swrast->_MinMagThresh[texUnit] = 0.5F; - } - else { - swrast->_MinMagThresh[texUnit] = 0.0F; - } - } - - swrast->TextureSample[texUnit] = - _swrast_choose_texture_sample_func( ctx, tObj ); - - swrast->TextureSample[texUnit]( ctx, texUnit, tObj, n, texcoords, - lambda, rgba ); -} - - -static void -_swrast_sleep( GLcontext *ctx, GLuint new_state ) -{ - (void) ctx; (void) new_state; -} - - -static void -_swrast_invalidate_state( GLcontext *ctx, GLuint new_state ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLuint i; - - swrast->NewState |= new_state; - - /* After 10 statechanges without any swrast functions being called, - * put the module to sleep. - */ - if (++swrast->StateChanges > 10) { - swrast->InvalidateState = _swrast_sleep; - swrast->NewState = ~0; - new_state = ~0; - } - - if (new_state & swrast->invalidate_triangle) - swrast->Triangle = _swrast_validate_triangle; - - if (new_state & swrast->invalidate_line) - swrast->Line = _swrast_validate_line; - - if (new_state & swrast->invalidate_point) - swrast->Point = _swrast_validate_point; - - if (new_state & _SWRAST_NEW_BLEND_FUNC) - swrast->BlendFunc = _swrast_validate_blend_func; - - if (new_state & _SWRAST_NEW_TEXTURE_SAMPLE_FUNC) - for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) - swrast->TextureSample[i] = _swrast_validate_texture_sample; -} - - -void -_swrast_validate_derived( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - if (swrast->NewState) { - if (swrast->NewState & _SWRAST_NEW_RASTERMASK) - _swrast_update_rasterflags( ctx ); - - if (swrast->NewState & _NEW_POLYGON) - _swrast_update_polygon( ctx ); - - if (swrast->NewState & (_NEW_HINT | _NEW_PROGRAM)) - _swrast_update_fog_hint( ctx ); - - if (swrast->NewState & _SWRAST_NEW_TEXTURE_ENV_MODE) - _swrast_update_texture_env( ctx ); - - if (swrast->NewState & (_NEW_FOG | _NEW_PROGRAM)) - _swrast_update_fog_state( ctx ); - - if (swrast->NewState & _NEW_PROGRAM) - _swrast_update_fragment_program( ctx ); - - swrast->NewState = 0; - swrast->StateChanges = 0; - swrast->InvalidateState = _swrast_invalidate_state; - } -} - -#define SWRAST_DEBUG 0 - -/* Public entrypoints: See also s_accum.c, s_bitmap.c, etc. - */ -void -_swrast_Quad( GLcontext *ctx, - const SWvertex *v0, const SWvertex *v1, - const SWvertex *v2, const SWvertex *v3 ) -{ - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_Quad\n"); - _swrast_print_vertex( ctx, v0 ); - _swrast_print_vertex( ctx, v1 ); - _swrast_print_vertex( ctx, v2 ); - _swrast_print_vertex( ctx, v3 ); - } - SWRAST_CONTEXT(ctx)->Triangle( ctx, v0, v1, v3 ); - SWRAST_CONTEXT(ctx)->Triangle( ctx, v1, v2, v3 ); -} - -void -_swrast_Triangle( GLcontext *ctx, const SWvertex *v0, - const SWvertex *v1, const SWvertex *v2 ) -{ - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_Triangle\n"); - _swrast_print_vertex( ctx, v0 ); - _swrast_print_vertex( ctx, v1 ); - _swrast_print_vertex( ctx, v2 ); - } - SWRAST_CONTEXT(ctx)->Triangle( ctx, v0, v1, v2 ); -} - -void -_swrast_Line( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1 ) -{ - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_Line\n"); - _swrast_print_vertex( ctx, v0 ); - _swrast_print_vertex( ctx, v1 ); - } - SWRAST_CONTEXT(ctx)->Line( ctx, v0, v1 ); -} - -void -_swrast_Point( GLcontext *ctx, const SWvertex *v0 ) -{ - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_Point\n"); - _swrast_print_vertex( ctx, v0 ); - } - SWRAST_CONTEXT(ctx)->Point( ctx, v0 ); -} - -void -_swrast_InvalidateState( GLcontext *ctx, GLuint new_state ) -{ - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_InvalidateState\n"); - } - SWRAST_CONTEXT(ctx)->InvalidateState( ctx, new_state ); -} - -void -_swrast_ResetLineStipple( GLcontext *ctx ) -{ - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_ResetLineStipple\n"); - } - SWRAST_CONTEXT(ctx)->StippleCounter = 0; -} - -void -_swrast_allow_vertex_fog( GLcontext *ctx, GLboolean value ) -{ - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_allow_vertex_fog %d\n", value); - } - SWRAST_CONTEXT(ctx)->InvalidateState( ctx, _NEW_HINT ); - SWRAST_CONTEXT(ctx)->AllowVertexFog = value; -} - -void -_swrast_allow_pixel_fog( GLcontext *ctx, GLboolean value ) -{ - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_allow_pixel_fog %d\n", value); - } - SWRAST_CONTEXT(ctx)->InvalidateState( ctx, _NEW_HINT ); - SWRAST_CONTEXT(ctx)->AllowPixelFog = value; -} - - -GLboolean -_swrast_CreateContext( GLcontext *ctx ) -{ - GLuint i; - SWcontext *swrast = (SWcontext *)CALLOC(sizeof(SWcontext)); - - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_CreateContext\n"); - } - - if (!swrast) - return GL_FALSE; - - swrast->NewState = ~0; - - swrast->choose_point = _swrast_choose_point; - swrast->choose_line = _swrast_choose_line; - swrast->choose_triangle = _swrast_choose_triangle; - - swrast->invalidate_point = _SWRAST_NEW_POINT; - swrast->invalidate_line = _SWRAST_NEW_LINE; - swrast->invalidate_triangle = _SWRAST_NEW_TRIANGLE; - - swrast->Point = _swrast_validate_point; - swrast->Line = _swrast_validate_line; - swrast->Triangle = _swrast_validate_triangle; - swrast->InvalidateState = _swrast_sleep; - swrast->BlendFunc = _swrast_validate_blend_func; - - swrast->AllowVertexFog = GL_TRUE; - swrast->AllowPixelFog = GL_TRUE; - - if (ctx->Visual.doubleBufferMode) - swrast->CurrentBufferBit = BUFFER_BIT_BACK_LEFT; - else - swrast->CurrentBufferBit = BUFFER_FRONT_LEFT; - - /* Optimized Accum buffer */ - swrast->_IntegerAccumMode = GL_FALSE; - swrast->_IntegerAccumScaler = 0.0; - - for (i = 0; i < MAX_TEXTURE_IMAGE_UNITS; i++) - swrast->TextureSample[i] = _swrast_validate_texture_sample; - - swrast->SpanArrays = MALLOC_STRUCT(span_arrays); - if (!swrast->SpanArrays) { - FREE(swrast); - return GL_FALSE; - } - - /* init point span buffer */ - swrast->PointSpan.primitive = GL_POINT; - swrast->PointSpan.start = 0; - swrast->PointSpan.end = 0; - swrast->PointSpan.facing = 0; - swrast->PointSpan.array = swrast->SpanArrays; - - assert(ctx->Const.MaxTextureUnits > 0); - assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_UNITS); - - swrast->TexelBuffer = (GLchan *) MALLOC(ctx->Const.MaxTextureUnits * - MAX_WIDTH * 4 * sizeof(GLchan)); - if (!swrast->TexelBuffer) { - FREE(swrast->SpanArrays); - FREE(swrast); - return GL_FALSE; - } - - ctx->swrast_context = swrast; - - return GL_TRUE; -} - -void -_swrast_DestroyContext( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - if (SWRAST_DEBUG) { - _mesa_debug(ctx, "_swrast_DestroyContext\n"); - } - - FREE( swrast->SpanArrays ); - FREE( swrast->TexelBuffer ); - FREE( swrast ); - - ctx->swrast_context = 0; -} - - -struct swrast_device_driver * -_swrast_GetDeviceDriverReference( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - return &swrast->Driver; -} - -void -_swrast_flush( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - /* flush any pending fragments from rendering points */ - if (swrast->PointSpan.end > 0) { - if (ctx->Visual.rgbMode) { - _swrast_write_rgba_span(ctx, &(swrast->PointSpan)); - } - else { - _swrast_write_index_span(ctx, &(swrast->PointSpan)); - } - swrast->PointSpan.end = 0; - } -} - -void -_swrast_render_primitive( GLcontext *ctx, GLenum prim ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - if (swrast->Primitive == GL_POINTS && prim != GL_POINTS) { - _swrast_flush(ctx); - } - swrast->Primitive = prim; -} - - -void -_swrast_render_start( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - if (swrast->Driver.SpanRenderStart) - swrast->Driver.SpanRenderStart( ctx ); - swrast->PointSpan.end = 0; -} - -void -_swrast_render_finish( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - if (swrast->Driver.SpanRenderFinish) - swrast->Driver.SpanRenderFinish( ctx ); - - _swrast_flush(ctx); -} - - -#define SWRAST_DEBUG_VERTICES 0 - -void -_swrast_print_vertex( GLcontext *ctx, const SWvertex *v ) -{ - GLuint i; - - if (SWRAST_DEBUG_VERTICES) { - _mesa_debug(ctx, "win %f %f %f %f\n", - v->win[0], v->win[1], v->win[2], v->win[3]); - - for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) - if (ctx->Texture.Unit[i]._ReallyEnabled) - _mesa_debug(ctx, "texcoord[%d] %f %f %f %f\n", i, - v->texcoord[i][0], v->texcoord[i][1], - v->texcoord[i][2], v->texcoord[i][3]); - -#if CHAN_TYPE == GL_FLOAT - _mesa_debug(ctx, "color %f %f %f %f\n", - v->color[0], v->color[1], v->color[2], v->color[3]); - _mesa_debug(ctx, "spec %f %f %f %f\n", - v->specular[0], v->specular[1], - v->specular[2], v->specular[3]); -#else - _mesa_debug(ctx, "color %d %d %d %d\n", - v->color[0], v->color[1], v->color[2], v->color[3]); - _mesa_debug(ctx, "spec %d %d %d %d\n", - v->specular[0], v->specular[1], - v->specular[2], v->specular[3]); -#endif - _mesa_debug(ctx, "fog %f\n", v->fog); - _mesa_debug(ctx, "index %d\n", v->index); - _mesa_debug(ctx, "pointsize %f\n", v->pointSize); - _mesa_debug(ctx, "\n"); - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_context.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_context.h deleted file mode 100644 index 5f5efdc22..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_context.h +++ /dev/null @@ -1,411 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file swrast/s_context.h - * \brief Software rasterization context and private types. - * \author Keith Whitwell <keith@tungstengraphics.com> - */ - -/** - * \mainpage swrast module - * - * This module, software rasterization, contains the software fallback - * routines for drawing points, lines, triangles, bitmaps and images. - * All rendering boils down to writing spans (arrays) of pixels with - * particular colors. The span-writing routines must be implemented - * by the device driver. - */ - - -#ifndef S_CONTEXT_H -#define S_CONTEXT_H - -#include "mtypes.h" -#include "swrast.h" - - -/** - * \defgroup SpanFlags SPAN_XXX-flags - * Bitmasks to indicate which span_arrays need to be computed - * (sw_span::interpMask) or have already been filled - * (sw_span::arrayMask) - */ -/*@{*/ -#define SPAN_RGBA 0x001 -#define SPAN_SPEC 0x002 -#define SPAN_INDEX 0x004 -#define SPAN_Z 0x008 -#define SPAN_W 0x010 -#define SPAN_FOG 0x020 -#define SPAN_TEXTURE 0x040 -#define SPAN_INT_TEXTURE 0x080 -#define SPAN_LAMBDA 0x100 -#define SPAN_COVERAGE 0x200 -#define SPAN_FLAT 0x400 /**< flat shading? */ -/** sw_span::arrayMask only - for span_arrays::x, span_arrays::y */ -#define SPAN_XY 0x800 -#define SPAN_MASK 0x1000 /**< sw_span::arrayMask only */ -/*@}*/ - - -/** - * \struct span_arrays - * \brief Arrays of fragment values. - * - * These will either be computed from the x/xStep values above or - * filled in by glDraw/CopyPixels, etc. - * These arrays are separated out of sw_span to conserve memory. - */ -struct span_arrays { - GLchan rgb[MAX_WIDTH][3]; - GLchan rgba[MAX_WIDTH][4]; - GLuint index[MAX_WIDTH]; - GLchan spec[MAX_WIDTH][4]; /* specular color */ - GLint x[MAX_WIDTH]; /**< X/Y used for point/line rendering only */ - GLint y[MAX_WIDTH]; /**< X/Y used for point/line rendering only */ - GLdepth z[MAX_WIDTH]; - GLfloat fog[MAX_WIDTH]; - GLfloat texcoords[MAX_TEXTURE_COORD_UNITS][MAX_WIDTH][4]; - GLfloat lambda[MAX_TEXTURE_COORD_UNITS][MAX_WIDTH]; - GLfloat coverage[MAX_WIDTH]; - - /** This mask indicates if fragment is alive or culled */ - GLubyte mask[MAX_WIDTH]; -}; - - -/** - * \struct sw_span - * \brief Contains data for either a horizontal line or a set of - * pixels that are passed through a pipeline of functions before being - * drawn. - * - * The sw_span structure describes the colors, Z, fogcoord, texcoords, - * etc for either a horizontal run or an array of independent pixels. - * We can either specify a base/step to indicate interpolated values, or - * fill in arrays of values. The interpMask and arrayMask bitfields - * indicate which are active. - * - * With this structure it's easy to hand-off span rasterization to - * subroutines instead of doing it all inline in the triangle functions - * like we used to do. - * It also cleans up the local variable namespace a great deal. - * - * It would be interesting to experiment with multiprocessor rasterization - * with this structure. The triangle rasterizer could simply emit a - * stream of these structures which would be consumed by one or more - * span-processing threads which could run in parallel. - */ -struct sw_span { - GLint x, y; - - /** Only need to process pixels between start <= i < end */ - /** At this time, start is always zero. */ - GLuint start, end; - - /** This flag indicates that mask[] array is effectively filled with ones */ - GLboolean writeAll; - - /** either GL_POLYGON, GL_LINE, GL_POLYGON, GL_BITMAP */ - GLenum primitive; - - /** 0 = front-facing span, 1 = back-facing span (for two-sided stencil) */ - GLuint facing; - - /** - * This bitmask (of \link SpanFlags SPAN_* flags\endlink) indicates - * which of the x/xStep variables are relevant. - */ - GLuint interpMask; - - /* For horizontal spans, step is the partial derivative wrt X. - * For lines, step is the delta from one fragment to the next. - */ -#if CHAN_TYPE == GL_FLOAT - GLfloat red, redStep; - GLfloat green, greenStep; - GLfloat blue, blueStep; - GLfloat alpha, alphaStep; - GLfloat specRed, specRedStep; - GLfloat specGreen, specGreenStep; - GLfloat specBlue, specBlueStep; -#else /* CHAN_TYPE == GL_UNSIGNED_BYTE or GL_UNSIGNED_SHORT */ - GLfixed red, redStep; - GLfixed green, greenStep; - GLfixed blue, blueStep; - GLfixed alpha, alphaStep; - GLfixed specRed, specRedStep; - GLfixed specGreen, specGreenStep; - GLfixed specBlue, specBlueStep; -#endif - GLfixed index, indexStep; - GLfixed z, zStep; - GLfloat fog, fogStep; - GLfloat tex[MAX_TEXTURE_COORD_UNITS][4]; /* s, t, r, q */ - GLfloat texStepX[MAX_TEXTURE_COORD_UNITS][4]; - GLfloat texStepY[MAX_TEXTURE_COORD_UNITS][4]; - GLfixed intTex[2], intTexStep[2]; /* s, t only */ - - /* partial derivatives wrt X and Y. */ - GLfloat dzdx, dzdy; - GLfloat w, dwdx, dwdy; - GLfloat drdx, drdy; - GLfloat dgdx, dgdy; - GLfloat dbdx, dbdy; - GLfloat dadx, dady; - GLfloat dsrdx, dsrdy; - GLfloat dsgdx, dsgdy; - GLfloat dsbdx, dsbdy; - GLfloat dfogdx, dfogdy; - - /** - * This bitmask (of \link SpanFlags SPAN_* flags\endlink) indicates - * which of the fragment arrays in the span_arrays struct are relevant. - */ - GLuint arrayMask; - - /** - * We store the arrays of fragment values in a separate struct so - * that we can allocate sw_span structs on the stack without using - * a lot of memory. The span_arrays struct is about 400KB while the - * sw_span struct is only about 512 bytes. - */ - struct span_arrays *array; -}; - - -#define INIT_SPAN(S, PRIMITIVE, END, INTERP_MASK, ARRAY_MASK) \ -do { \ - (S).primitive = (PRIMITIVE); \ - (S).interpMask = (INTERP_MASK); \ - (S).arrayMask = (ARRAY_MASK); \ - (S).start = 0; \ - (S).end = (END); \ - (S).facing = 0; \ - (S).array = SWRAST_CONTEXT(ctx)->SpanArrays; \ -} while (0) - - -typedef void (*texture_sample_func)(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4]); - -typedef void (_ASMAPIP blend_func)( GLcontext *ctx, GLuint n, - const GLubyte mask[], - GLchan src[][4], CONST GLchan dst[][4] ); - -typedef void (*swrast_point_func)( GLcontext *ctx, const SWvertex *); - -typedef void (*swrast_line_func)( GLcontext *ctx, - const SWvertex *, const SWvertex *); - -typedef void (*swrast_tri_func)( GLcontext *ctx, const SWvertex *, - const SWvertex *, const SWvertex *); - - -/** \defgroup Bitmasks - * Bitmasks to indicate which rasterization options are enabled - * (RasterMask) - */ -/*@{*/ -#define ALPHATEST_BIT 0x001 /**< Alpha-test pixels */ -#define BLEND_BIT 0x002 /**< Blend pixels */ -#define DEPTH_BIT 0x004 /**< Depth-test pixels */ -#define FOG_BIT 0x008 /**< Fog pixels */ -#define LOGIC_OP_BIT 0x010 /**< Apply logic op in software */ -#define CLIP_BIT 0x020 /**< Scissor or window clip pixels */ -#define STENCIL_BIT 0x040 /**< Stencil pixels */ -#define MASKING_BIT 0x080 /**< Do glColorMask or glIndexMask */ -#define MULTI_DRAW_BIT 0x400 /**< Write to more than one color- */ - /**< buffer or no buffers. */ -#define OCCLUSION_BIT 0x800 /**< GL_HP_occlusion_test enabled */ -#define TEXTURE_BIT 0x1000 /**< Texturing really enabled */ -#define FRAGPROG_BIT 0x2000 /**< Fragment program enabled */ -#define ATIFRAGSHADER_BIT 0x4000 /**< ATI Fragment shader enabled */ -/*@}*/ - -#define _SWRAST_NEW_RASTERMASK (_NEW_BUFFERS| \ - _NEW_SCISSOR| \ - _NEW_COLOR| \ - _NEW_DEPTH| \ - _NEW_FOG| \ - _NEW_PROGRAM| \ - _NEW_STENCIL| \ - _NEW_TEXTURE| \ - _NEW_VIEWPORT| \ - _NEW_DEPTH) - - -/** - * \struct SWcontext - * \brief SWContext? - */ -typedef struct -{ - /** Driver interface: - */ - struct swrast_device_driver Driver; - - /** Configuration mechanisms to make software rasterizer match - * characteristics of the hardware rasterizer (if present): - */ - GLboolean AllowVertexFog; - GLboolean AllowPixelFog; - - /** Derived values, invalidated on statechanges, updated from - * _swrast_validate_derived(): - */ - GLuint _RasterMask; - GLfloat _MinMagThresh[MAX_TEXTURE_IMAGE_UNITS]; - GLfloat _BackfaceSign; - GLboolean _PreferPixelFog; /* Compute fog blend factor per fragment? */ - GLboolean _AnyTextureCombine; - GLchan _FogColor[3]; - GLboolean _FogEnabled; - GLenum _FogMode; /* either GL_FOG_MODE or fragment program's fog mode */ - - /* Accum buffer temporaries. - */ - GLboolean _IntegerAccumMode; /**< Storing unscaled integers? */ - GLfloat _IntegerAccumScaler; /**< Implicit scale factor */ - - /* Working values: - */ - GLuint StippleCounter; /**< Line stipple counter */ - GLuint NewState; - GLuint StateChanges; - GLenum Primitive; /* current primitive being drawn (ala glBegin) */ - GLbitfield CurrentBufferBit; /* exactly one the of DD_*_BIT buffer bits */ - - /** Mechanism to allow driver (like X11) to register further - * software rasterization routines. - */ - /*@{*/ - void (*choose_point)( GLcontext * ); - void (*choose_line)( GLcontext * ); - void (*choose_triangle)( GLcontext * ); - - GLuint invalidate_point; - GLuint invalidate_line; - GLuint invalidate_triangle; - /*@}*/ - - /** Function pointers for dispatch behind public entrypoints. */ - /*@{*/ - void (*InvalidateState)( GLcontext *ctx, GLuint new_state ); - - swrast_point_func Point; - swrast_line_func Line; - swrast_tri_func Triangle; - /*@}*/ - - /** - * Placeholders for when separate specular (or secondary color) is - * enabled but texturing is not. - */ - /*@{*/ - swrast_point_func SpecPoint; - swrast_line_func SpecLine; - swrast_tri_func SpecTriangle; - /*@}*/ - - /** - * Typically, we'll allocate a sw_span structure as a local variable - * and set its 'array' pointer to point to this object. The reason is - * this object is big and causes problems when allocated on the stack - * on some systems. - */ - struct span_arrays *SpanArrays; - - /** - * Used to buffer N GL_POINTS, instead of rendering one by one. - */ - struct sw_span PointSpan; - - /** Internal hooks, kept uptodate by the same mechanism as above. - */ - blend_func BlendFunc; - texture_sample_func TextureSample[MAX_TEXTURE_IMAGE_UNITS]; - - /** Buffer for saving the sampled texture colors. - * Needed for GL_ARB_texture_env_crossbar implementation. - */ - GLchan *TexelBuffer; - -} SWcontext; - - -extern void -_swrast_validate_derived( GLcontext *ctx ); - - -#define SWRAST_CONTEXT(ctx) ((SWcontext *)ctx->swrast_context) - -#define RENDER_START(SWctx, GLctx) \ - do { \ - if ((SWctx)->Driver.SpanRenderStart) { \ - (*(SWctx)->Driver.SpanRenderStart)(GLctx); \ - } \ - } while (0) - -#define RENDER_FINISH(SWctx, GLctx) \ - do { \ - if ((SWctx)->Driver.SpanRenderFinish) { \ - (*(SWctx)->Driver.SpanRenderFinish)(GLctx); \ - } \ - } while (0) - - - -/* - * XXX these macros are just bandages for now in order to make - * CHAN_BITS==32 compile cleanly. - * These should probably go elsewhere at some point. - */ -#if CHAN_TYPE == GL_FLOAT -#define ChanToFixed(X) (X) -#define FixedToChan(X) (X) -#else -#define ChanToFixed(X) IntToFixed(X) -#define FixedToChan(X) FixedToInt(X) -#endif - - - -extern void -_swrast_translate_program( GLcontext *ctx ); - -extern GLboolean -_swrast_execute_codegen_program(GLcontext *ctx, - const struct fragment_program *program, - GLuint maxInst, - struct fp_machine *machine, - const struct sw_span *span, - GLuint column ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_copypix.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_copypix.c deleted file mode 100644 index 05f81c690..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_copypix.c +++ /dev/null @@ -1,801 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.4 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "colormac.h" -#include "convolve.h" -#include "histogram.h" -#include "image.h" -#include "macros.h" -#include "imports.h" -#include "pixel.h" - -#include "s_context.h" -#include "s_depth.h" -#include "s_pixeltex.h" -#include "s_span.h" -#include "s_stencil.h" -#include "s_texture.h" -#include "s_zoom.h" - - - -/* - * Determine if there's overlap in an image copy. - * This test also compensates for the fact that copies are done from - * bottom to top and overlaps can sometimes be handled correctly - * without making a temporary image copy. - */ -static GLboolean -regions_overlap(GLint srcx, GLint srcy, - GLint dstx, GLint dsty, - GLint width, GLint height, - GLfloat zoomX, GLfloat zoomY) -{ - if (zoomX == 1.0 && zoomY == 1.0) { - /* no zoom */ - if (srcx >= dstx + width || (srcx + width <= dstx)) { - return GL_FALSE; - } - else if (srcy < dsty) { /* this is OK */ - return GL_FALSE; - } - else if (srcy > dsty + height) { - return GL_FALSE; - } - else { - return GL_TRUE; - } - } - else { - /* add one pixel of slop when zooming, just to be safe */ - if ((srcx > dstx + (width * zoomX) + 1) || (srcx + width + 1 < dstx)) { - return GL_FALSE; - } - else if ((srcy < dsty) && (srcy + height < dsty + (height * zoomY))) { - return GL_FALSE; - } - else if ((srcy > dsty) && (srcy + height > dsty + (height * zoomY))) { - return GL_FALSE; - } - else { - return GL_TRUE; - } - } -} - - -/** - * Convert GLfloat[n][4] colors to GLchan[n][4]. - * XXX maybe move into image.c - */ -static void -float_span_to_chan(GLuint n, CONST GLfloat in[][4], GLchan out[][4]) -{ - GLuint i; - for (i = 0; i < n; i++) { - UNCLAMPED_FLOAT_TO_CHAN(out[i][RCOMP], in[i][RCOMP]); - UNCLAMPED_FLOAT_TO_CHAN(out[i][GCOMP], in[i][GCOMP]); - UNCLAMPED_FLOAT_TO_CHAN(out[i][BCOMP], in[i][BCOMP]); - UNCLAMPED_FLOAT_TO_CHAN(out[i][ACOMP], in[i][ACOMP]); - } -} - - -/** - * Convert GLchan[n][4] colors to GLfloat[n][4]. - * XXX maybe move into image.c - */ -static void -chan_span_to_float(GLuint n, CONST GLchan in[][4], GLfloat out[][4]) -{ - GLuint i; - for (i = 0; i < n; i++) { - out[i][RCOMP] = CHAN_TO_FLOAT(in[i][RCOMP]); - out[i][GCOMP] = CHAN_TO_FLOAT(in[i][GCOMP]); - out[i][BCOMP] = CHAN_TO_FLOAT(in[i][BCOMP]); - out[i][ACOMP] = CHAN_TO_FLOAT(in[i][ACOMP]); - } -} - - - -/* - * RGBA copypixels with convolution. - */ -static void -copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, - GLint width, GLint height, GLint destx, GLint desty) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *drawRb = NULL; - GLboolean quick_draw; - GLint row; - GLboolean changeBuffer; - const GLboolean zoom = ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F; - const GLuint transferOps = ctx->_ImageTransferState; - GLfloat *dest, *tmpImage, *convImage; - struct sw_span span; - - INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_RGBA); - - if (ctx->Depth.Test) - _swrast_span_default_z(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - - - if (SWRAST_CONTEXT(ctx)->_RasterMask == 0 - && !zoom - && destx >= 0 - && destx + width <= (GLint) ctx->DrawBuffer->Width) { - quick_draw = GL_TRUE; - drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0][0]; - } - else { - quick_draw = GL_FALSE; - } - - /* If read and draw buffer are different we must do buffer switching */ - changeBuffer = ctx->Pixel.ReadBuffer != ctx->Color.DrawBuffer[0] - || ctx->DrawBuffer != ctx->ReadBuffer; - - - /* allocate space for GLfloat image */ - tmpImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat)); - if (!tmpImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels"); - return; - } - convImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat)); - if (!convImage) { - FREE(tmpImage); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels"); - return; - } - - if (changeBuffer) { - /* choose the read buffer */ - _swrast_use_read_buffer(ctx); - } - - /* read source image */ - dest = tmpImage; - for (row = 0; row < height; row++) { - GLchan rgba[MAX_WIDTH][4]; - /* Read GLchan and convert to GLfloat */ - _swrast_read_rgba_span(ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, srcx, srcy + row, rgba); - chan_span_to_float(width, (CONST GLchan (*)[4]) rgba, - (GLfloat (*)[4]) dest); - dest += 4 * width; - } - - if (changeBuffer) { - /* restore default src/dst buffer */ - _swrast_use_draw_buffer(ctx); - } - - /* do the image transfer ops which preceed convolution */ - for (row = 0; row < height; row++) { - GLfloat (*rgba)[4] = (GLfloat (*)[4]) (tmpImage + row * width * 4); - _mesa_apply_rgba_transfer_ops(ctx, - transferOps & IMAGE_PRE_CONVOLUTION_BITS, - width, rgba); - } - - /* do convolution */ - if (ctx->Pixel.Convolution2DEnabled) { - _mesa_convolve_2d_image(ctx, &width, &height, tmpImage, convImage); - } - else { - ASSERT(ctx->Pixel.Separable2DEnabled); - _mesa_convolve_sep_image(ctx, &width, &height, tmpImage, convImage); - } - FREE(tmpImage); - - /* do remaining post-convolution image transfer ops */ - for (row = 0; row < height; row++) { - GLfloat (*rgba)[4] = (GLfloat (*)[4]) (convImage + row * width * 4); - _mesa_apply_rgba_transfer_ops(ctx, - transferOps & IMAGE_POST_CONVOLUTION_BITS, - width, rgba); - } - - /* write the new image */ - for (row = 0; row < height; row++) { - const GLfloat *src = convImage + row * width * 4; - GLint dy; - - /* convert floats back to chan */ - float_span_to_chan(width, (const GLfloat (*)[4]) src, span.array->rgba); - - if (ctx->Pixel.PixelTextureEnabled && ctx->Texture._EnabledUnits) { - span.end = width; - _swrast_pixel_texture(ctx, &span); - } - - /* write row to framebuffer */ - - dy = desty + row; - if (quick_draw && dy >= 0 && dy < (GLint) ctx->DrawBuffer->Height) { - drawRb->PutRow(ctx, drawRb, width, destx, dy, span.array->rgba, NULL); - } - else if (zoom) { - span.x = destx; - span.y = dy; - span.end = width; - _swrast_write_zoomed_rgba_span(ctx, &span, - (CONST GLchan (*)[4])span.array->rgba, - desty, 0); - } - else { - span.x = destx; - span.y = dy; - span.end = width; - _swrast_write_rgba_span(ctx, &span); - } - } - - FREE(convImage); -} - - -/* - * RGBA copypixels - */ -static void -copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, - GLint width, GLint height, GLint destx, GLint desty) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *drawRb; - GLchan *tmpImage,*p; - GLboolean quick_draw; - GLint sy, dy, stepy, j; - GLboolean changeBuffer; - const GLboolean zoom = ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F; - GLint overlapping; - const GLuint transferOps = ctx->_ImageTransferState; - struct sw_span span; - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - /* no readbuffer - OK */ - return; - } - - INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_RGBA); - - if (ctx->Pixel.Convolution2DEnabled || ctx->Pixel.Separable2DEnabled) { - copy_conv_rgba_pixels(ctx, srcx, srcy, width, height, destx, desty); - return; - } - - /* Determine if copy should be done bottom-to-top or top-to-bottom */ - if (srcy < desty) { - /* top-down max-to-min */ - sy = srcy + height - 1; - dy = desty + height - 1; - stepy = -1; - } - else { - /* bottom-up min-to-max */ - sy = srcy; - dy = desty; - stepy = 1; - } - - if (ctx->DrawBuffer == ctx->ReadBuffer) { - overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); - } - else { - overlapping = GL_FALSE; - } - - if (ctx->Depth.Test) - _swrast_span_default_z(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - - if (SWRAST_CONTEXT(ctx)->_RasterMask == 0 - && !zoom - && destx >= 0 - && destx + width <= (GLint) ctx->DrawBuffer->Width) { - quick_draw = GL_TRUE; - drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0][0]; - } - else { - quick_draw = GL_FALSE; - drawRb = NULL; - } - - /* If read and draw buffer are different we must do buffer switching */ - changeBuffer = ctx->Pixel.ReadBuffer != ctx->Color.DrawBuffer[0] - || ctx->DrawBuffer != ctx->ReadBuffer; - - if (overlapping) { - GLint ssy = sy; - tmpImage = (GLchan *) MALLOC(width * height * sizeof(GLchan) * 4); - if (!tmpImage) { - _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyPixels" ); - return; - } - /* setup source */ - if (changeBuffer) - _swrast_use_read_buffer(ctx); - /* read the source image */ - p = tmpImage; - for (j = 0; j < height; j++, ssy += stepy) { - _swrast_read_rgba_span( ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, srcx, ssy, (GLchan (*)[4]) p ); - p += width * 4; - } - p = tmpImage; - /* restore dest */ - if (changeBuffer) { - _swrast_use_draw_buffer(ctx); - changeBuffer = GL_FALSE; - } - } - else { - tmpImage = NULL; /* silence compiler warnings */ - p = NULL; - } - - for (j = 0; j < height; j++, sy += stepy, dy += stepy) { - /* Get source pixels */ - if (overlapping) { - /* get from buffered image */ - ASSERT(width < MAX_WIDTH); - MEMCPY(span.array->rgba, p, width * sizeof(GLchan) * 4); - p += width * 4; - } - else { - /* get from framebuffer */ - if (changeBuffer) - _swrast_use_read_buffer(ctx); - ASSERT(width < MAX_WIDTH); - _swrast_read_rgba_span( ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, srcx, sy, span.array->rgba ); - if (changeBuffer) - _swrast_use_draw_buffer(ctx); - } - - if (transferOps) { - DEFMARRAY(GLfloat, rgbaFloat, MAX_WIDTH, 4); /* mac 32k limitation */ - CHECKARRAY(rgbaFloat, return); - - /* convert to float, transfer, convert back to chan */ - chan_span_to_float(width, (CONST GLchan (*)[4]) span.array->rgba, - rgbaFloat); - _mesa_apply_rgba_transfer_ops(ctx, transferOps, width, rgbaFloat); - float_span_to_chan(width, (CONST GLfloat (*)[4]) rgbaFloat, - span.array->rgba); - - UNDEFARRAY(rgbaFloat); /* mac 32k limitation */ - } - - if (ctx->Pixel.PixelTextureEnabled && ctx->Texture._EnabledUnits) { - span.end = width; - _swrast_pixel_texture(ctx, &span); - } - - /* Write color span */ - if (quick_draw && dy >= 0 && dy < (GLint) ctx->DrawBuffer->Height) { - drawRb->PutRow(ctx, drawRb, width, destx, dy, span.array->rgba, NULL); - } - else if (zoom) { - span.x = destx; - span.y = dy; - span.end = width; - _swrast_write_zoomed_rgba_span(ctx, &span, - (CONST GLchan (*)[4]) span.array->rgba, - desty, 0); - } - else { - span.x = destx; - span.y = dy; - span.end = width; - _swrast_write_rgba_span(ctx, &span); - } - } - - if (overlapping) - FREE(tmpImage); -} - - -static void -copy_ci_pixels( GLcontext *ctx, GLint srcx, GLint srcy, - GLint width, GLint height, - GLint destx, GLint desty ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLuint *tmpImage,*p; - GLint sy, dy, stepy; - GLint j; - GLboolean changeBuffer; - const GLboolean zoom = ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F; - const GLboolean shift_or_offset = ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset; - GLint overlapping; - struct sw_span span; - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - /* no readbuffer - OK */ - return; - } - - INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_INDEX); - - /* Determine if copy should be bottom-to-top or top-to-bottom */ - if (srcy<desty) { - /* top-down max-to-min */ - sy = srcy + height - 1; - dy = desty + height - 1; - stepy = -1; - } - else { - /* bottom-up min-to-max */ - sy = srcy; - dy = desty; - stepy = 1; - } - - if (ctx->DrawBuffer == ctx->ReadBuffer) { - overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); - } - else { - overlapping = GL_FALSE; - } - - if (ctx->Depth.Test) - _swrast_span_default_z(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - - /* If read and draw buffer are different we must do buffer switching */ - changeBuffer = ctx->Pixel.ReadBuffer != ctx->Color.DrawBuffer[0] - || ctx->DrawBuffer != ctx->ReadBuffer; - - if (overlapping) { - GLint ssy = sy; - tmpImage = (GLuint *) MALLOC(width * height * sizeof(GLuint)); - if (!tmpImage) { - _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyPixels" ); - return; - } - /* setup source */ - if (changeBuffer) - _swrast_use_read_buffer(ctx); - /* read the image */ - p = tmpImage; - for (j = 0; j < height; j++, ssy += stepy) { - _swrast_read_index_span( ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, srcx, ssy, p ); - p += width; - } - p = tmpImage; - /* restore to draw buffer */ - if (changeBuffer) { - _swrast_use_draw_buffer(ctx); - changeBuffer = GL_FALSE; - } - } - else { - tmpImage = NULL; /* silence compiler warning */ - p = NULL; - } - - for (j = 0; j < height; j++, sy += stepy, dy += stepy) { - /* Get color indexes */ - if (overlapping) { - MEMCPY(span.array->index, p, width * sizeof(GLuint)); - p += width; - } - else { - if (changeBuffer) - _swrast_use_read_buffer(ctx); - _swrast_read_index_span( ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, srcx, sy, span.array->index ); - if (changeBuffer) - _swrast_use_draw_buffer(ctx); - } - - /* Apply shift, offset, look-up table */ - if (shift_or_offset) { - _mesa_shift_and_offset_ci( ctx, width, span.array->index ); - } - if (ctx->Pixel.MapColorFlag) { - _mesa_map_ci( ctx, width, span.array->index ); - } - - /* write color indexes */ - span.x = destx; - span.y = dy; - span.end = width; - if (zoom) - _swrast_write_zoomed_index_span(ctx, &span, desty, 0); - else - _swrast_write_index_span(ctx, &span); - } - - if (overlapping) - FREE(tmpImage); -} - - - -/* - * TODO: Optimize!!!! - */ -static void -copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy, - GLint width, GLint height, - GLint destx, GLint desty ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF; - struct gl_renderbuffer *readRb - = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; - GLfloat *p, *tmpImage; - GLint sy, dy, stepy; - GLint i, j; - const GLboolean zoom = ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F; - GLint overlapping; - struct sw_span span; - - if (!readRb) { - /* no readbuffer - OK */ - return; - } - - INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_Z); - - if (!ctx->Visual.depthBits) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glCopyPixels" ); - return; - } - - /* Determine if copy should be bottom-to-top or top-to-bottom */ - if (srcy<desty) { - /* top-down max-to-min */ - sy = srcy + height - 1; - dy = desty + height - 1; - stepy = -1; - } - else { - /* bottom-up min-to-max */ - sy = srcy; - dy = desty; - stepy = 1; - } - - if (ctx->DrawBuffer == ctx->ReadBuffer) { - overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); - } - else { - overlapping = GL_FALSE; - } - - _swrast_span_default_color(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - - if (overlapping) { - GLint ssy = sy; - tmpImage = (GLfloat *) MALLOC(width * height * sizeof(GLfloat)); - if (!tmpImage) { - _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyPixels" ); - return; - } - p = tmpImage; - for (j = 0; j < height; j++, ssy += stepy) { - _swrast_read_depth_span_float(ctx, readRb, width, srcx, ssy, p); - p += width; - } - p = tmpImage; - } - else { - tmpImage = NULL; /* silence compiler warning */ - p = NULL; - } - - for (j = 0; j < height; j++, sy += stepy, dy += stepy) { - GLfloat depth[MAX_WIDTH]; - /* get depth values */ - if (overlapping) { - MEMCPY(depth, p, width * sizeof(GLfloat)); - p += width; - } - else { - _swrast_read_depth_span_float(ctx, readRb, width, srcx, sy, depth); - } - - /* apply scale and bias */ - for (i = 0; i < width; i++) { - GLfloat d = depth[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias; - span.array->z[i] = (GLdepth) (CLAMP(d, 0.0F, 1.0F) * depthMax); - } - - /* write depth values */ - span.x = destx; - span.y = dy; - span.end = width; - if (ctx->Visual.rgbMode) { - if (zoom) - _swrast_write_zoomed_rgba_span( ctx, &span, - (const GLchan (*)[4])span.array->rgba, desty, 0 ); - else - _swrast_write_rgba_span(ctx, &span); - } - else { - if (zoom) - _swrast_write_zoomed_index_span( ctx, &span, desty, 0 ); - else - _swrast_write_index_span(ctx, &span); - } - } - - if (overlapping) - FREE(tmpImage); -} - - - -static void -copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, - GLint width, GLint height, - GLint destx, GLint desty ) -{ - struct gl_renderbuffer *rb - = ctx->ReadBuffer->Attachment[BUFFER_STENCIL].Renderbuffer; - GLint sy, dy, stepy; - GLint j; - GLstencil *p, *tmpImage; - const GLboolean zoom = ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F; - const GLboolean shift_or_offset = ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset; - GLint overlapping; - - if (!ctx->Visual.stencilBits) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glCopyPixels" ); - return; - } - - if (!rb) { - /* no readbuffer - OK */ - return; - } - - /* Determine if copy should be bottom-to-top or top-to-bottom */ - if (srcy < desty) { - /* top-down max-to-min */ - sy = srcy + height - 1; - dy = desty + height - 1; - stepy = -1; - } - else { - /* bottom-up min-to-max */ - sy = srcy; - dy = desty; - stepy = 1; - } - - if (ctx->DrawBuffer == ctx->ReadBuffer) { - overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); - } - else { - overlapping = GL_FALSE; - } - - if (overlapping) { - GLint ssy = sy; - tmpImage = (GLstencil *) MALLOC(width * height * sizeof(GLstencil)); - if (!tmpImage) { - _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyPixels" ); - return; - } - p = tmpImage; - for (j = 0; j < height; j++, ssy += stepy) { - _swrast_read_stencil_span( ctx, rb, width, srcx, ssy, p ); - p += width; - } - p = tmpImage; - } - else { - tmpImage = NULL; /* silence compiler warning */ - p = NULL; - } - - for (j = 0; j < height; j++, sy += stepy, dy += stepy) { - GLstencil stencil[MAX_WIDTH]; - - /* Get stencil values */ - if (overlapping) { - MEMCPY(stencil, p, width * sizeof(GLstencil)); - p += width; - } - else { - _swrast_read_stencil_span( ctx, rb, width, srcx, sy, stencil ); - } - - /* Apply shift, offset, look-up table */ - if (shift_or_offset) { - _mesa_shift_and_offset_stencil( ctx, width, stencil ); - } - if (ctx->Pixel.MapStencilFlag) { - _mesa_map_stencil( ctx, width, stencil ); - } - - /* Write stencil values */ - if (zoom) { - _swrast_write_zoomed_stencil_span( ctx, width, destx, dy, - stencil, desty, 0 ); - } - else { - _swrast_write_stencil_span( ctx, width, destx, dy, stencil ); - } - } - - if (overlapping) - FREE(tmpImage); -} - - - -void -_swrast_CopyPixels( GLcontext *ctx, - GLint srcx, GLint srcy, GLsizei width, GLsizei height, - GLint destx, GLint desty, - GLenum type ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - RENDER_START(swrast,ctx); - - if (swrast->NewState) - _swrast_validate_derived( ctx ); - - if (type == GL_COLOR && ctx->Visual.rgbMode) { - copy_rgba_pixels( ctx, srcx, srcy, width, height, destx, desty ); - } - else if (type == GL_COLOR && !ctx->Visual.rgbMode) { - copy_ci_pixels( ctx, srcx, srcy, width, height, destx, desty ); - } - else if (type == GL_DEPTH) { - copy_depth_pixels( ctx, srcx, srcy, width, height, destx, desty ); - } - else if (type == GL_STENCIL) { - copy_stencil_pixels( ctx, srcx, srcy, width, height, destx, desty ); - } - else { - _mesa_error( ctx, GL_INVALID_ENUM, "glCopyPixels" ); - } - - RENDER_FINISH(swrast,ctx); -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_depth.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_depth.c deleted file mode 100644 index b9d7d8949..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_depth.c +++ /dev/null @@ -1,1365 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "macros.h" -#include "imports.h" -#include "fbobject.h" - -#include "s_depth.h" -#include "s_context.h" -#include "s_span.h" - - -/** - * Do depth test for a horizontal span of fragments. - * Input: zbuffer - array of z values in the zbuffer - * z - array of fragment z values - * Return: number of fragments which pass the test. - */ -static GLuint -depth_test_span16( GLcontext *ctx, GLuint n, - GLushort zbuffer[], const GLuint z[], GLubyte mask[] ) -{ - GLuint passed = 0; - - /* switch cases ordered from most frequent to less frequent */ - switch (ctx->Depth.Func) { - case GL_LESS: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - if (z[i] < zbuffer[i]) { - /* pass */ - zbuffer[i] = z[i]; - passed++; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - if (z[i] < zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_LEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] <= zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] <= zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_GEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] >= zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] >= zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_GREATER: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] > zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] > zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_NOTEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] != zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] != zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_EQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] == zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] == zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_ALWAYS: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - zbuffer[i] = z[i]; - passed++; - } - } - } - else { - /* Don't update Z buffer or mask */ - passed = n; - } - break; - case GL_NEVER: - _mesa_bzero(mask, n * sizeof(GLubyte)); - break; - default: - _mesa_problem(ctx, "Bad depth func in depth_test_span16"); - } - - return passed; -} - - -static GLuint -depth_test_span32( GLcontext *ctx, GLuint n, - GLuint zbuffer[], const GLuint z[], GLubyte mask[] ) -{ - GLuint passed = 0; - - /* switch cases ordered from most frequent to less frequent */ - switch (ctx->Depth.Func) { - case GL_LESS: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - if (z[i] < zbuffer[i]) { - /* pass */ - zbuffer[i] = z[i]; - passed++; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - if (z[i] < zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_LEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] <= zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] <= zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_GEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] >= zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] >= zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_GREATER: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] > zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] > zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_NOTEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] != zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] != zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_EQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] == zbuffer[i]) { - zbuffer[i] = z[i]; - passed++; - } - else { - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - if (z[i] == zbuffer[i]) { - /* pass */ - passed++; - } - else { - mask[i] = 0; - } - } - } - } - break; - case GL_ALWAYS: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0;i<n;i++) { - if (mask[i]) { - zbuffer[i] = z[i]; - passed++; - } - } - } - else { - /* Don't update Z buffer or mask */ - passed = n; - } - break; - case GL_NEVER: - _mesa_bzero(mask, n * sizeof(GLubyte)); - break; - default: - _mesa_problem(ctx, "Bad depth func in depth_test_span32"); - } - - return passed; -} - - - -/* - * Apply depth test to span of fragments. - */ -static GLuint -depth_test_span( GLcontext *ctx, struct sw_span *span) -{ - struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *rb = fb->Attachment[BUFFER_DEPTH].Renderbuffer; - const GLint x = span->x; - const GLint y = span->y; - const GLuint count = span->end; - const GLuint *zValues = span->array->z; - GLubyte *mask = span->array->mask; - GLuint passed; - - ASSERT((span->arrayMask & SPAN_XY) == 0); - ASSERT(span->arrayMask & SPAN_Z); - - if (rb->GetPointer(ctx, rb, 0, 0)) { - /* Directly access buffer */ - if (ctx->DrawBuffer->Visual.depthBits <= 16) { - GLushort *zbuffer = (GLushort *) rb->GetPointer(ctx, rb, x, y); - passed = depth_test_span16(ctx, count, zbuffer, zValues, mask); - } - else { - GLuint *zbuffer = (GLuint *) rb->GetPointer(ctx, rb, x, y); - passed = depth_test_span32(ctx, count, zbuffer, zValues, mask); - } - } - else { - /* read depth values from buffer, test, write back */ - if (rb->DataType == GL_UNSIGNED_SHORT) { - GLushort zbuffer[MAX_WIDTH]; - rb->GetRow(ctx, rb, count, x, y, zbuffer); - passed = depth_test_span16(ctx, count, zbuffer, zValues, mask ); - rb->PutRow(ctx, rb, count, x, y, zbuffer, NULL); - } - else { - GLuint zbuffer[MAX_WIDTH]; - ASSERT(rb->DataType == GL_UNSIGNED_INT); - rb->GetRow(ctx, rb, count, x, y, zbuffer); - passed = depth_test_span32(ctx, count, zbuffer, zValues, mask ); - rb->PutRow(ctx, rb, count, x, y, zbuffer, NULL); - } - } - - if (passed < count) { - span->writeAll = GL_FALSE; - } - return passed; -} - - - -#define Z_ADDRESS(X, Y) (zStart + (Y) * stride + (X)) - - -/* - * Do depth testing for an array of fragments at assorted locations. - */ -static void -direct_depth_test_pixels16(GLcontext *ctx, GLushort *zStart, GLuint stride, - GLuint n, const GLint x[], const GLint y[], - const GLuint z[], GLubyte mask[] ) -{ - /* switch cases ordered from most frequent to less frequent */ - switch (ctx->Depth.Func) { - case GL_LESS: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] < *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] < *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_LEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] <= *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] <= *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_GEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] >= *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] >= *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_GREATER: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] > *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] > *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_NOTEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] != *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] != *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_EQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] == *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] == *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_ALWAYS: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLushort *zptr = Z_ADDRESS(x[i], y[i]); - *zptr = z[i]; - } - } - } - else { - /* Don't update Z buffer or mask */ - } - break; - case GL_NEVER: - /* depth test never passes */ - _mesa_bzero(mask, n * sizeof(GLubyte)); - break; - default: - _mesa_problem(ctx, "Bad depth func in direct_depth_test_pixels"); - } -} - - - -/* - * Do depth testing for an array of fragments with direct access to zbuffer. - */ -static void -direct_depth_test_pixels32(GLcontext *ctx, GLuint *zStart, GLuint stride, - GLuint n, const GLint x[], const GLint y[], - const GLuint z[], GLubyte mask[] ) -{ - /* switch cases ordered from most frequent to less frequent */ - switch (ctx->Depth.Func) { - case GL_LESS: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] < *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] < *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_LEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] <= *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] <= *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_GEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] >= *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] >= *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_GREATER: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] > *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] > *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_NOTEQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] != *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] != *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_EQUAL: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] == *zptr) { - /* pass */ - *zptr = z[i]; - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - else { - /* Don't update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - if (z[i] == *zptr) { - /* pass */ - } - else { - /* fail */ - mask[i] = 0; - } - } - } - } - break; - case GL_ALWAYS: - if (ctx->Depth.Mask) { - /* Update Z buffer */ - GLuint i; - for (i=0; i<n; i++) { - if (mask[i]) { - GLuint *zptr = Z_ADDRESS(x[i], y[i]); - *zptr = z[i]; - } - } - } - else { - /* Don't update Z buffer or mask */ - } - break; - case GL_NEVER: - /* depth test never passes */ - _mesa_bzero(mask, n * sizeof(GLubyte)); - break; - default: - _mesa_problem(ctx, "Bad depth func in direct_depth_test_pixels"); - } -} - - - - -static GLuint -depth_test_pixels( GLcontext *ctx, struct sw_span *span ) -{ - struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *rb = fb->Attachment[BUFFER_DEPTH].Renderbuffer; - const GLuint count = span->end; - const GLint *x = span->array->x; - const GLint *y = span->array->y; - const GLuint *z = span->array->z; - GLubyte *mask = span->array->mask; - - if (rb->GetPointer(ctx, rb, 0, 0)) { - /* Directly access values */ - if (rb->DataType == GL_UNSIGNED_SHORT) { - GLushort *zStart = (GLushort *) rb->Data; - GLuint stride = rb->Width; - direct_depth_test_pixels16(ctx, zStart, stride, count, x, y, z, mask); - } - else { - GLuint *zStart = (GLuint *) rb->Data; - GLuint stride = rb->Width; - direct_depth_test_pixels32(ctx, zStart, stride, count, x, y, z, mask); - } - } - else { - /* read depth values from buffer, test, write back */ - if (rb->DataType == GL_UNSIGNED_SHORT) { - GLushort zbuffer[MAX_WIDTH]; - _swrast_get_values(ctx, rb, count, x, y, zbuffer, sizeof(GLushort)); - depth_test_span16(ctx, count, zbuffer, z, mask ); - rb->PutValues(ctx, rb, count, x, y, zbuffer, NULL); - } - else { - GLuint zbuffer[MAX_WIDTH]; - ASSERT(rb->DataType == GL_UNSIGNED_INT); - _swrast_get_values(ctx, rb, count, x, y, zbuffer, sizeof(GLuint)); - depth_test_span32(ctx, count, zbuffer, z, mask ); - rb->PutValues(ctx, rb, count, x, y, zbuffer, NULL); - } - } - - return count; /* not really correct, but OK */ -} - - -/** - * Apply depth (Z) buffer testing to the span. - * \return approx number of pixels that passed (only zero is reliable) - */ -GLuint -_swrast_depth_test_span( GLcontext *ctx, struct sw_span *span) -{ - if (span->arrayMask & SPAN_XY) - return depth_test_pixels(ctx, span); - else - return depth_test_span(ctx, span); -} - - -/** - * GL_EXT_depth_bounds_test extension. - * Discard fragments depending on whether the corresponding Z-buffer - * values are outside the depth bounds test range. - * Note: we test the Z buffer values, not the fragment Z values! - * \return GL_TRUE if any fragments pass, GL_FALSE if no fragments pass - */ -GLboolean -_swrast_depth_bounds_test( GLcontext *ctx, struct sw_span *span ) -{ - struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *rb = fb->Attachment[BUFFER_DEPTH].Renderbuffer; - GLuint zMin = (GLuint) (ctx->Depth.BoundsMin * fb->_DepthMaxF + 0.5F); - GLuint zMax = (GLuint) (ctx->Depth.BoundsMax * fb->_DepthMaxF + 0.5F); - GLubyte *mask = span->array->mask; - const GLuint count = span->end; - GLuint i; - GLboolean anyPass = GL_FALSE; - - if (rb->DataType == GL_UNSIGNED_SHORT) { - /* get 16-bit values */ - GLushort zbuffer16[MAX_WIDTH], *zbuffer; - if (span->arrayMask & SPAN_XY) { - _swrast_get_values(ctx, rb, count, span->array->x, span->array->y, - zbuffer16, sizeof(GLushort)); - zbuffer = zbuffer16; - } - else { - zbuffer = rb->GetPointer(ctx, rb, span->x, span->y); - if (!zbuffer) { - rb->GetRow(ctx, rb, count, span->x, span->y, zbuffer16); - zbuffer = zbuffer16; - } - } - assert(zbuffer); - - /* Now do the tests */ - for (i = 0; i < count; i++) { - if (mask[i]) { - if (zbuffer[i] < zMin || zbuffer[i] > zMax) - mask[i] = GL_FALSE; - else - anyPass = GL_TRUE; - } - } - } - else { - /* get 32-bit values */ - GLuint zbuffer32[MAX_WIDTH], *zbuffer; - if (span->arrayMask & SPAN_XY) { - _swrast_get_values(ctx, rb, count, span->array->x, span->array->y, - zbuffer32, sizeof(GLuint)); - zbuffer = zbuffer32; - } - else { - zbuffer = rb->GetPointer(ctx, rb, span->x, span->y); - if (!zbuffer) { - rb->GetRow(ctx, rb, count, span->x, span->y, zbuffer32); - zbuffer = zbuffer32; - } - } - assert(zbuffer); - - /* Now do the tests */ - for (i = 0; i < count; i++) { - if (mask[i]) { - if (zbuffer[i] < zMin || zbuffer[i] > zMax) - mask[i] = GL_FALSE; - else - anyPass = GL_TRUE; - } - } - } - - return anyPass; -} - - - -/**********************************************************************/ -/***** Read Depth Buffer *****/ -/**********************************************************************/ - - -/** - * Read a span of depth values from the depth buffer. - * This function does clipping before calling the device driver function. - * - * XXXX this is no longer a swrast function!!! - * - */ -void -_swrast_read_depth_span( GLcontext *ctx, struct gl_renderbuffer *rb, - GLint n, GLint x, GLint y, GLuint depth[] ) -{ - if (y < 0 || y >= (GLint) rb->Height || - x + (GLint) n <= 0 || x >= (GLint) rb->Width) { - /* span is completely outside framebuffer */ - GLint i; - for (i = 0; i < n; i++) - depth[i] = 0; - return; - } - - if (x < 0) { - GLint dx = -x; - GLint i; - for (i = 0; i < dx; i++) - depth[i] = 0; - x = 0; - n -= dx; - depth += dx; - } - if (x + n > (GLint) rb->Width) { - GLint dx = x + n - (GLint) rb->Width; - GLint i; - for (i = 0; i < dx; i++) - depth[n - i - 1] = 0; - n -= dx; - } - if (n <= 0) { - return; - } - - /* we'll always return 32-bit values to our caller */ - if (!rb) { - _mesa_bzero(depth, n * sizeof(GLuint)); - } - else if (rb->DataType == GL_UNSIGNED_INT) { - rb->GetRow(ctx, rb, n, x, y, depth); - } - else { - GLushort temp[MAX_WIDTH]; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_SHORT); - rb->GetRow(ctx, rb, n, x, y, temp); - for (i = 0; i < n; i++) { - depth[i] = temp[i]; - } - } -} - - -/** - * Return a span of depth values from the depth buffer as floats in [0,1]. - * Input: n - how many pixels - * x,y - location of first pixel - * Output: depth - the array of depth values - */ -void -_swrast_read_depth_span_float( GLcontext *ctx, struct gl_renderbuffer *rb, - GLint n, GLint x, GLint y, GLfloat depth[] ) -{ - const GLfloat scale = 1.0F / ctx->DrawBuffer->_DepthMaxF; - GLuint temp[MAX_WIDTH]; - GLint i; - - assert(n <= MAX_WIDTH); - - _swrast_read_depth_span(ctx, rb, n, x, y, temp); - for (i = 0; i < n; i++) { - depth[i] = temp[i] * scale; - } -} - - -/** - * Clear the depth buffer. - */ -void -_swrast_clear_depth_buffer( GLcontext *ctx, struct gl_renderbuffer *rb ) -{ - GLuint clearValue; - GLint x, y, width, height; - - if (!rb || !ctx->Depth.Mask) { - /* no depth buffer, or writing to it is disabled */ - return; - } - - /* compute integer clearing value */ - if (ctx->Depth.Clear == 1.0) { - clearValue = ctx->DrawBuffer->_DepthMax; - } - else { - clearValue = (GLuint) (ctx->Depth.Clear * ctx->DrawBuffer->_DepthMaxF); - } - - assert(rb->_BaseFormat == GL_DEPTH_COMPONENT); - - /* compute region to clear */ - x = ctx->DrawBuffer->_Xmin; - y = ctx->DrawBuffer->_Ymin; - width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin; - height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin; - - if (rb->GetPointer(ctx, rb, 0, 0)) { - /* Direct buffer access is possible. Either this is just malloc'd - * memory, or perhaps the driver mmap'd the zbuffer memory. - */ - if (rb->DataType == GL_UNSIGNED_SHORT) { - if (width == rb->Width && - (clearValue & 0xff) == ((clearValue >> 8) & 0xff)) { - /* optimized case */ - GLushort *dst = (GLushort *) rb->GetPointer(ctx, rb, x, y); - GLuint len = width * height * sizeof(GLushort); - _mesa_memset(dst, (clearValue & 0xff), len); - } - else { - /* general case */ - GLint i, j; - for (i = 0; i < height; i++) { - GLushort *dst = (GLushort *) rb->GetPointer(ctx, rb, x, y + i); - for (j = 0; j < width; j++) { - dst[j] = clearValue; - } - } - } - } - else { - GLint i, j; - ASSERT(rb->DataType == GL_UNSIGNED_INT); - for (i = 0; i < height; i++) { - GLuint *dst = (GLuint *) rb->GetPointer(ctx, rb, x, y + i); - for (j = 0; j < width; j++) { - dst[j] = clearValue; - } - } - } - } - else { - /* Direct access not possible. Use PutRow to write new values. */ - if (rb->DataType == GL_UNSIGNED_SHORT) { - GLushort clearRow[MAX_WIDTH]; - GLint i, j; - for (j = 0; j < width; j++) { - clearRow[j] = clearValue; - } - for (i = 0; i < height; i++) { - rb->PutRow(ctx, rb, width, x, y + i, clearRow, NULL); - } - } - else { - GLuint clearRow[MAX_WIDTH]; - GLint i, j; - assert(rb->DataType == GL_UNSIGNED_INT); - for (j = 0; j < width; j++) { - clearRow[j] = clearValue; - } - for (i = 0; i < height; i++) { - rb->PutRow(ctx, rb, width, x, y + i, clearRow, NULL); - } - } - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_depth.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_depth.h deleted file mode 100644 index 2229e8a22..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_depth.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_DEPTH_H -#define S_DEPTH_H - - -#include "mtypes.h" -#include "s_context.h" - - -extern GLuint -_swrast_depth_test_span( GLcontext *ctx, struct sw_span *span); - - -extern GLboolean -_swrast_depth_bounds_test( GLcontext *ctx, struct sw_span *span ); - - -extern void -_swrast_read_depth_span( GLcontext *ctx, struct gl_renderbuffer *rb, - GLint n, GLint x, GLint y, GLuint depth[] ); - - -extern void -_swrast_read_depth_span_float( GLcontext *ctx, struct gl_renderbuffer *rb, - GLint n, GLint x, GLint y, GLfloat depth[] ); - - -extern void -_swrast_clear_depth_buffer( GLcontext *ctx, struct gl_renderbuffer *rb ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_drawpix.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_drawpix.c deleted file mode 100644 index b6aa77757..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_drawpix.c +++ /dev/null @@ -1,1007 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.4 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "bufferobj.h" -#include "context.h" -#include "convolve.h" -#include "image.h" -#include "macros.h" -#include "imports.h" -#include "pixel.h" - -#include "s_context.h" -#include "s_drawpix.h" -#include "s_pixeltex.h" -#include "s_span.h" -#include "s_stencil.h" -#include "s_zoom.h" - - -/* - * Try to do a fast and simple RGB(a) glDrawPixels. - * Return: GL_TRUE if success, GL_FALSE if slow path must be used instead - */ -static GLboolean -fast_draw_pixels(GLcontext *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0][0]; - struct sw_span span; - - INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_RGBA); - - if (!ctx->Current.RasterPosValid) { - return GL_TRUE; /* no-op */ - } - - if (swrast->_RasterMask & MULTI_DRAW_BIT) - return GL_FALSE; - - if (ctx->Depth.Test) - _swrast_span_default_z(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - if (ctx->Texture._EnabledCoordUnits) - _swrast_span_default_texcoords(ctx, &span); - - if ((SWRAST_CONTEXT(ctx)->_RasterMask & ~CLIP_BIT) == 0 - && ctx->Texture._EnabledCoordUnits == 0 - && unpack->Alignment == 1 - && !unpack->SwapBytes - && !unpack->LsbFirst) { - - GLint destX = x; - GLint destY = y; - GLint drawWidth = width; /* actual width drawn */ - GLint drawHeight = height; /* actual height drawn */ - GLint skipPixels = unpack->SkipPixels; - GLint skipRows = unpack->SkipRows; - GLint rowLength; - GLint zoomY0 = 0; - - if (unpack->RowLength > 0) - rowLength = unpack->RowLength; - else - rowLength = width; - - /* If we're not using pixel zoom then do all clipping calculations - * now. Otherwise, we'll let the _swrast_write_zoomed_*_span() functions - * handle the clipping. - */ - if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) { - /* horizontal clipping */ - if (destX < ctx->DrawBuffer->_Xmin) { - skipPixels += (ctx->DrawBuffer->_Xmin - destX); - drawWidth -= (ctx->DrawBuffer->_Xmin - destX); - destX = ctx->DrawBuffer->_Xmin; - } - if (destX + drawWidth > ctx->DrawBuffer->_Xmax) - drawWidth -= (destX + drawWidth - ctx->DrawBuffer->_Xmax); - if (drawWidth <= 0) - return GL_TRUE; - - /* vertical clipping */ - if (destY < ctx->DrawBuffer->_Ymin) { - skipRows += (ctx->DrawBuffer->_Ymin - destY); - drawHeight -= (ctx->DrawBuffer->_Ymin - destY); - destY = ctx->DrawBuffer->_Ymin; - } - if (destY + drawHeight > ctx->DrawBuffer->_Ymax) - drawHeight -= (destY + drawHeight - ctx->DrawBuffer->_Ymax); - if (drawHeight <= 0) - return GL_TRUE; - } - else if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==-1.0F) { - /* upside-down image */ - /* horizontal clipping */ - if (destX < ctx->DrawBuffer->_Xmin) { - skipPixels += (ctx->DrawBuffer->_Xmin - destX); - drawWidth -= (ctx->DrawBuffer->_Xmin - destX); - destX = ctx->DrawBuffer->_Xmin; - } - if (destX + drawWidth > ctx->DrawBuffer->_Xmax) - drawWidth -= (destX + drawWidth - ctx->DrawBuffer->_Xmax); - if (drawWidth <= 0) - return GL_TRUE; - - /* vertical clipping */ - if (destY > ctx->DrawBuffer->_Ymax) { - skipRows += (destY - ctx->DrawBuffer->_Ymax); - drawHeight -= (destY - ctx->DrawBuffer->_Ymax); - destY = ctx->DrawBuffer->_Ymax; - } - if (destY - drawHeight < ctx->DrawBuffer->_Ymin) - drawHeight -= (ctx->DrawBuffer->_Ymin - (destY - drawHeight)); - if (drawHeight <= 0) - return GL_TRUE; - } - else { - if (drawWidth > MAX_WIDTH) - return GL_FALSE; /* fall back to general case path */ - - /* save Y value of first row */ - zoomY0 = IROUND(ctx->Current.RasterPos[1]); - } - - - /* - * Ready to draw! - * The window region at (destX, destY) of size (drawWidth, drawHeight) - * will be written to. - * We'll take pixel data from buffer pointed to by "pixels" but we'll - * skip "skipRows" rows and skip "skipPixels" pixels/row. - */ - - if (format == GL_RGBA && type == CHAN_TYPE - && ctx->_ImageTransferState==0) { - if (ctx->Visual.rgbMode) { - GLchan *src = (GLchan *) pixels - + (skipRows * rowLength + skipPixels) * 4; - if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) { - /* no zooming */ - GLint row; - for (row=0; row<drawHeight; row++) { - rb->PutRow(ctx, rb, drawWidth, destX, destY, src, NULL); - src += rowLength * 4; - destY++; - } - } - else if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==-1.0F) { - /* upside-down */ - GLint row; - for (row=0; row<drawHeight; row++) { - destY--; - rb->PutRow(ctx, rb, drawWidth, destX, destY, src, NULL); - src += rowLength * 4; - } - } - else { - /* with zooming */ - GLint row; - for (row=0; row<drawHeight; row++) { - span.x = destX; - span.y = destY; - span.end = drawWidth; - _swrast_write_zoomed_rgba_span(ctx, &span, - (CONST GLchan (*)[4]) src, zoomY0, 0); - src += rowLength * 4; - destY++; - } - } - } - return GL_TRUE; - } - else if (format == GL_RGB && type == CHAN_TYPE - && ctx->_ImageTransferState == 0) { - if (ctx->Visual.rgbMode) { - GLchan *src = (GLchan *) pixels - + (skipRows * rowLength + skipPixels) * 3; - if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) { - GLint row; - for (row=0; row<drawHeight; row++) { - rb->PutRowRGB(ctx, rb, drawWidth, destX, destY, src, NULL); - src += rowLength * 3; - destY++; - } - } - else if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==-1.0F) { - /* upside-down */ - GLint row; - for (row=0; row<drawHeight; row++) { - destY--; - rb->PutRowRGB(ctx, rb, drawWidth, destX, destY, src, NULL); - src += rowLength * 3; - } - } - else { - /* with zooming */ - GLint row; - for (row=0; row<drawHeight; row++) { - span.x = destX; - span.y = destY; - span.end = drawWidth; - _swrast_write_zoomed_rgb_span(ctx, &span, - (CONST GLchan (*)[3]) src, zoomY0, 0); - src += rowLength * 3; - destY++; - } - } - } - return GL_TRUE; - } - else if (format == GL_LUMINANCE && type == CHAN_TYPE - && ctx->_ImageTransferState==0) { - if (ctx->Visual.rgbMode) { - GLchan *src = (GLchan *) pixels - + (skipRows * rowLength + skipPixels); - if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) { - /* no zooming */ - GLint row; - ASSERT(drawWidth <= MAX_WIDTH); - for (row=0; row<drawHeight; row++) { - GLint i; - for (i=0;i<drawWidth;i++) { - span.array->rgb[i][0] = src[i]; - span.array->rgb[i][1] = src[i]; - span.array->rgb[i][2] = src[i]; - } - rb->PutRowRGB(ctx, rb, drawWidth, destX, destY, - span.array->rgb, NULL); - src += rowLength; - destY++; - } - } - else if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==-1.0F) { - /* upside-down */ - GLint row; - ASSERT(drawWidth <= MAX_WIDTH); - for (row=0; row<drawHeight; row++) { - GLint i; - for (i=0;i<drawWidth;i++) { - span.array->rgb[i][0] = src[i]; - span.array->rgb[i][1] = src[i]; - span.array->rgb[i][2] = src[i]; - } - destY--; - rb->PutRow(ctx, rb, drawWidth, destX, destY, - span.array->rgb, NULL); - src += rowLength; - } - } - else { - /* with zooming */ - GLint row; - ASSERT(drawWidth <= MAX_WIDTH); - for (row=0; row<drawHeight; row++) { - GLint i; - for (i=0;i<drawWidth;i++) { - span.array->rgb[i][0] = src[i]; - span.array->rgb[i][1] = src[i]; - span.array->rgb[i][2] = src[i]; - } - span.x = destX; - span.y = destY; - span.end = drawWidth; - _swrast_write_zoomed_rgb_span(ctx, &span, - (CONST GLchan (*)[3]) span.array->rgb, zoomY0, 0); - src += rowLength; - destY++; - } - } - } - return GL_TRUE; - } - else if (format == GL_LUMINANCE_ALPHA && type == CHAN_TYPE - && ctx->_ImageTransferState == 0) { - if (ctx->Visual.rgbMode) { - GLchan *src = (GLchan *) pixels - + (skipRows * rowLength + skipPixels)*2; - if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) { - /* no zooming */ - GLint row; - ASSERT(drawWidth <= MAX_WIDTH); - for (row=0; row<drawHeight; row++) { - GLint i; - GLchan *ptr = src; - for (i=0;i<drawWidth;i++) { - span.array->rgba[i][0] = *ptr; - span.array->rgba[i][1] = *ptr; - span.array->rgba[i][2] = *ptr++; - span.array->rgba[i][3] = *ptr++; - } - rb->PutRow(ctx, rb, drawWidth, destX, destY, - span.array->rgba, NULL); - src += rowLength*2; - destY++; - } - } - else if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==-1.0F) { - /* upside-down */ - GLint row; - ASSERT(drawWidth <= MAX_WIDTH); - for (row=0; row<drawHeight; row++) { - GLint i; - GLchan *ptr = src; - for (i=0;i<drawWidth;i++) { - span.array->rgba[i][0] = *ptr; - span.array->rgba[i][1] = *ptr; - span.array->rgba[i][2] = *ptr++; - span.array->rgba[i][3] = *ptr++; - } - destY--; - rb->PutRow(ctx, rb, drawWidth, destX, destY, - span.array->rgba, NULL); - src += rowLength*2; - } - } - else { - /* with zooming */ - GLint row; - ASSERT(drawWidth <= MAX_WIDTH); - for (row=0; row<drawHeight; row++) { - GLchan *ptr = src; - GLint i; - for (i=0;i<drawWidth;i++) { - span.array->rgba[i][0] = *ptr; - span.array->rgba[i][1] = *ptr; - span.array->rgba[i][2] = *ptr++; - span.array->rgba[i][3] = *ptr++; - } - span.x = destX; - span.y = destY; - span.end = drawWidth; - _swrast_write_zoomed_rgba_span(ctx, &span, - (CONST GLchan (*)[4]) span.array->rgba, zoomY0, 0); - src += rowLength*2; - destY++; - } - } - } - return GL_TRUE; - } - else if (format==GL_COLOR_INDEX && type==GL_UNSIGNED_BYTE) { - GLubyte *src = (GLubyte *) pixels + skipRows * rowLength + skipPixels; - if (ctx->Visual.rgbMode) { - /* convert CI data to RGBA */ - if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) { - /* no zooming */ - GLint row; - for (row=0; row<drawHeight; row++) { - ASSERT(drawWidth <= MAX_WIDTH); - _mesa_map_ci8_to_rgba(ctx, drawWidth, src, span.array->rgba); - rb->PutRow(ctx, rb, drawWidth, destX, destY, - span.array->rgba, NULL); - src += rowLength; - destY++; - } - return GL_TRUE; - } - else if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==-1.0F) { - /* upside-down */ - GLint row; - for (row=0; row<drawHeight; row++) { - ASSERT(drawWidth <= MAX_WIDTH); - _mesa_map_ci8_to_rgba(ctx, drawWidth, src, span.array->rgba); - destY--; - rb->PutRow(ctx, rb, drawWidth, destX, destY, - span.array->rgba, NULL); - src += rowLength; - } - return GL_TRUE; - } - else { - /* with zooming */ - GLint row; - for (row=0; row<drawHeight; row++) { - ASSERT(drawWidth <= MAX_WIDTH); - _mesa_map_ci8_to_rgba(ctx, drawWidth, src, span.array->rgba); - span.x = destX; - span.y = destY; - span.end = drawWidth; - _swrast_write_zoomed_rgba_span(ctx, &span, - (CONST GLchan (*)[4]) span.array->rgba, zoomY0, 0); - src += rowLength; - destY++; - } - return GL_TRUE; - } - } - else if (ctx->_ImageTransferState==0) { - /* write CI data to CI frame buffer */ - GLint row; - if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) { - /* no zooming */ - for (row=0; row<drawHeight; row++) { - GLuint index32[MAX_WIDTH]; - GLint col; - for (col = 0; col < drawWidth; col++) - index32[col] = src[col]; - rb->PutRow(ctx, rb, drawWidth, destX, destY, index32, NULL); - src += rowLength; - destY++; - } - return GL_TRUE; - } - else { - /* with zooming */ - return GL_FALSE; - } - } - } - else { - /* can't handle this pixel format and/or data type here */ - return GL_FALSE; - } - } - - /* can't do a simple draw, have to use slow path */ - return GL_FALSE; -} - - - -/* - * Draw color index image. - */ -static void -draw_index_pixels( GLcontext *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0; - GLint row, skipPixels; - struct sw_span span; - - INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_INDEX); - - if (ctx->Depth.Test) - _swrast_span_default_z(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - - /* - * General solution - */ - skipPixels = 0; - while (skipPixels < width) { - const GLint spanX = x + (zoom ? 0 : skipPixels); - GLint spanY = y; - const GLint spanEnd = (width - skipPixels > MAX_WIDTH) - ? MAX_WIDTH : (width - skipPixels); - ASSERT(spanEnd <= MAX_WIDTH); - for (row = 0; row < height; row++, spanY++) { - const GLvoid *source = _mesa_image_address2d(unpack, pixels, - width, height, - GL_COLOR_INDEX, type, - row, skipPixels); - _mesa_unpack_index_span(ctx, spanEnd, GL_UNSIGNED_INT, - span.array->index, type, source, unpack, - ctx->_ImageTransferState); - - /* These may get changed during writing/clipping */ - span.x = spanX; - span.y = spanY; - span.end = spanEnd; - - if (zoom) - _swrast_write_zoomed_index_span(ctx, &span, y, skipPixels); - else - _swrast_write_index_span(ctx, &span); - } - skipPixels += spanEnd; - } -} - - - -/* - * Draw stencil image. - */ -static void -draw_stencil_pixels( GLcontext *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels ) -{ - const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0; - const GLint desty = y; - GLint row, skipPixels; - - if (type != GL_BYTE && - type != GL_UNSIGNED_BYTE && - type != GL_SHORT && - type != GL_UNSIGNED_SHORT && - type != GL_INT && - type != GL_UNSIGNED_INT && - type != GL_FLOAT && - type != GL_BITMAP) { - _mesa_error( ctx, GL_INVALID_ENUM, "glDrawPixels(stencil type)"); - return; - } - - if (ctx->Visual.stencilBits == 0) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawPixels(no stencil buffer)"); - return; - } - - /* if width > MAX_WIDTH, have to process image in chunks */ - skipPixels = 0; - while (skipPixels < width) { - const GLint spanX = x; - GLint spanY = y; - const GLint spanWidth = (width - skipPixels > MAX_WIDTH) - ? MAX_WIDTH : (width - skipPixels); - - for (row = 0; row < height; row++, spanY++) { - GLstencil values[MAX_WIDTH]; - GLenum destType = (sizeof(GLstencil) == sizeof(GLubyte)) - ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT; - const GLvoid *source = _mesa_image_address2d(unpack, pixels, - width, height, - GL_COLOR_INDEX, type, - row, skipPixels); - _mesa_unpack_index_span(ctx, spanWidth, destType, values, - type, source, unpack, - ctx->_ImageTransferState); - if (ctx->_ImageTransferState & IMAGE_SHIFT_OFFSET_BIT) { - _mesa_shift_and_offset_stencil(ctx, spanWidth, values); - } - if (ctx->Pixel.MapStencilFlag) { - _mesa_map_stencil(ctx, spanWidth, values); - } - - if (zoom) { - _swrast_write_zoomed_stencil_span(ctx, (GLuint) spanWidth, - spanX, spanY, values, desty, 0); - } - else { - _swrast_write_stencil_span(ctx, spanWidth, spanX, spanY, values); - } - } - skipPixels += spanWidth; - } -} - - -/* - * Draw depth image. - */ -static void -draw_depth_pixels( GLcontext *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLboolean bias_or_scale = ctx->Pixel.DepthBias!=0.0 || ctx->Pixel.DepthScale!=1.0; - const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0; - const GLint desty = y; - struct sw_span span; - - INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_Z); - - if (type != GL_BYTE - && type != GL_UNSIGNED_BYTE - && type != GL_SHORT - && type != GL_UNSIGNED_SHORT - && type != GL_INT - && type != GL_UNSIGNED_INT - && type != GL_FLOAT) { - _mesa_error(ctx, GL_INVALID_ENUM, "glDrawPixels(type)"); - return; - } - - _swrast_span_default_color(ctx, &span); - - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - if (ctx->Texture._EnabledCoordUnits) - _swrast_span_default_texcoords(ctx, &span); - - if (type == GL_UNSIGNED_SHORT - && ctx->Visual.depthBits == 16 - && !bias_or_scale - && !zoom - && ctx->Visual.rgbMode - && width <= MAX_WIDTH) { - /* Special case: directly write 16-bit depth values */ - GLint row, spanY = y; - for (row = 0; row < height; row++, spanY++) { - const GLushort *zSrc = (const GLushort *) - _mesa_image_address2d(unpack, pixels, width, height, - GL_DEPTH_COMPONENT, type, row, 0); - GLint i; - for (i = 0; i < width; i++) - span.array->z[i] = zSrc[i]; - span.x = x; - span.y = spanY; - span.end = width; - _swrast_write_rgba_span(ctx, &span); - } - } - else if (type == GL_UNSIGNED_INT - && sizeof(GLdepth) == 4 - && !bias_or_scale - && !zoom - && ctx->Visual.rgbMode - && width <= MAX_WIDTH) { - /* Special case: shift 32-bit values down to ctx->Visual.depthBits */ - const GLint shift = 32 - ctx->Visual.depthBits; - GLint row, spanY = y; - for (row = 0; row < height; row++, spanY++) { - const GLuint *zSrc = (const GLuint *) - _mesa_image_address2d(unpack, pixels, width, height, - GL_DEPTH_COMPONENT, type, row, 0); - if (shift == 0) { - MEMCPY(span.array->z, zSrc, width * sizeof(GLdepth)); - } - else { - GLint col; - for (col = 0; col < width; col++) - span.array->z[col] = zSrc[col] >> shift; - } - span.x = x; - span.y = spanY; - span.end = width; - _swrast_write_rgba_span(ctx, &span); - } - } - else { - /* General case */ - const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF; - GLint row, skipPixels = 0; - - /* in case width > MAX_WIDTH do the copy in chunks */ - while (skipPixels < width) { - const GLint spanX = x + (zoom ? 0 : skipPixels); - GLint spanY = y; - const GLint spanEnd = (width - skipPixels > MAX_WIDTH) - ? MAX_WIDTH : (width - skipPixels); - ASSERT(span.end <= MAX_WIDTH); - for (row = 0; row < height; row++, spanY++) { - GLfloat floatSpan[MAX_WIDTH]; - const GLvoid *zSrc = _mesa_image_address2d(unpack, - pixels, width, height, - GL_DEPTH_COMPONENT, type, - row, skipPixels); - - /* Set these for each row since the _swrast_write_* function may - * change them while clipping. - */ - span.x = spanX; - span.y = spanY; - span.end = spanEnd; - - _mesa_unpack_depth_span(ctx, span.end, floatSpan, type, - zSrc, unpack); - /* clamp depth values to [0,1] and convert from floats to ints */ - { - GLuint i; - for (i = 0; i < span.end; i++) { - span.array->z[i] = (GLdepth) (floatSpan[i] * depthMax); - } - } - if (zoom) { - _swrast_write_zoomed_depth_span(ctx, &span, desty, skipPixels); - } - else if (ctx->Visual.rgbMode) { - _swrast_write_rgba_span(ctx, &span); - } - else { - _swrast_write_index_span(ctx, &span); - } - } - skipPixels += spanEnd; - } - } -} - - - -/* - * Draw RGBA image. - */ -static void -draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_renderbuffer *rb = NULL; /* only used for quickDraw path */ - const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0; - const GLint desty = y; - GLboolean quickDraw; - GLfloat *convImage = NULL; - GLuint transferOps = ctx->_ImageTransferState; - struct sw_span span; - - INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_RGBA); - - if (!_mesa_is_legal_format_and_type(ctx, format, type)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glDrawPixels(format or type)"); - return; - } - - /* Try an optimized glDrawPixels first */ - if (fast_draw_pixels(ctx, x, y, width, height, format, type, unpack, pixels)) - return; - - if (ctx->Depth.Test) - _swrast_span_default_z(ctx, &span); - if (swrast->_FogEnabled) - _swrast_span_default_fog(ctx, &span); - if (ctx->Texture._EnabledCoordUnits) - _swrast_span_default_texcoords(ctx, &span); - - if (SWRAST_CONTEXT(ctx)->_RasterMask == 0 && !zoom && x >= 0 && y >= 0 - && x + width <= (GLint) ctx->DrawBuffer->Width - && y + height <= (GLint) ctx->DrawBuffer->Height - && ctx->DrawBuffer->_NumColorDrawBuffers[0] == 1) { - quickDraw = GL_TRUE; - rb = ctx->DrawBuffer->_ColorDrawBuffers[0][0]; - } - else { - quickDraw = GL_FALSE; - rb = NULL; - } - - if (ctx->Pixel.Convolution2DEnabled || ctx->Pixel.Separable2DEnabled) { - /* Convolution has to be handled specially. We'll create an - * intermediate image, applying all pixel transfer operations - * up to convolution. Then we'll convolve the image. Then - * we'll proceed with the rest of the transfer operations and - * rasterize the image. - */ - GLint row; - GLfloat *dest, *tmpImage; - - tmpImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); - if (!tmpImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels"); - return; - } - convImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); - if (!convImage) { - _mesa_free(tmpImage); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels"); - return; - } - - /* Unpack the image and apply transfer ops up to convolution */ - dest = tmpImage; - for (row = 0; row < height; row++) { - const GLvoid *source = _mesa_image_address2d(unpack, - pixels, width, height, format, type, row, 0); - _mesa_unpack_color_span_float(ctx, width, GL_RGBA, (GLfloat *) dest, - format, type, source, unpack, - transferOps & IMAGE_PRE_CONVOLUTION_BITS); - dest += width * 4; - } - - /* do convolution */ - if (ctx->Pixel.Convolution2DEnabled) { - _mesa_convolve_2d_image(ctx, &width, &height, tmpImage, convImage); - } - else { - ASSERT(ctx->Pixel.Separable2DEnabled); - _mesa_convolve_sep_image(ctx, &width, &height, tmpImage, convImage); - } - _mesa_free(tmpImage); - - /* continue transfer ops and draw the convolved image */ - unpack = &ctx->DefaultPacking; - pixels = convImage; - format = GL_RGBA; - type = GL_FLOAT; - transferOps &= IMAGE_POST_CONVOLUTION_BITS; - } - - /* - * General solution - */ - { - const GLuint interpMask = span.interpMask; - const GLuint arrayMask = span.arrayMask; - GLint row, skipPixels = 0; - - /* if the span is wider than MAX_WIDTH we have to do it in chunks */ - while (skipPixels < width) { - const GLint spanX = x + (zoom ? 0 : skipPixels); - GLint spanY = y; - const GLint spanEnd = (width - skipPixels > MAX_WIDTH) - ? MAX_WIDTH : (width - skipPixels); - ASSERT(span.end <= MAX_WIDTH); - - for (row = 0; row < height; row++, spanY++) { - const GLvoid *source = _mesa_image_address2d(unpack, - pixels, width, height, format, type, row, skipPixels); - - /* Set these for each row since the _swrast_write_* function may - * change them while clipping. - */ - span.x = spanX; - span.y = spanY; - span.end = spanEnd; - span.arrayMask = arrayMask; - span.interpMask = interpMask; - - _mesa_unpack_color_span_chan(ctx, span.end, GL_RGBA, - (GLchan *) span.array->rgba, - format, type, source, unpack, - transferOps); - - if ((ctx->Pixel.MinMaxEnabled && ctx->MinMax.Sink) || - (ctx->Pixel.HistogramEnabled && ctx->Histogram.Sink)) - continue; - - if (ctx->Pixel.PixelTextureEnabled && ctx->Texture._EnabledUnits) { - _swrast_pixel_texture(ctx, &span); - } - - /* draw the span */ - if (quickDraw) { - rb->PutRow(ctx, rb, span.end, span.x, span.y, - span.array->rgba, NULL); - } - else if (zoom) { - _swrast_write_zoomed_rgba_span(ctx, &span, - (CONST GLchan (*)[4]) span.array->rgba, desty, skipPixels); - } - else { - _swrast_write_rgba_span(ctx, &span); - } - } - - skipPixels += spanEnd; - } - } - - if (convImage) { - _mesa_free(convImage); - } -} - - - -/* - * Execute glDrawPixels - */ -void -_swrast_DrawPixels( GLcontext *ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - if (swrast->NewState) - _swrast_validate_derived( ctx ); - - if (unpack->BufferObj->Name) { - /* unpack from PBO */ - GLubyte *buf; - if (!_mesa_validate_pbo_access(2, unpack, width, height, 1, - format, type, pixels)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glDrawPixels(invalid PBO access)"); - return; - } - buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, - GL_READ_ONLY_ARB, - unpack->BufferObj); - if (!buf) { - /* buffer is already mapped - that's an error */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels(PBO is mapped)"); - return; - } - pixels = ADD_POINTERS(buf, pixels); - } - - RENDER_START(swrast,ctx); - - switch (format) { - case GL_STENCIL_INDEX: - draw_stencil_pixels( ctx, x, y, width, height, type, unpack, pixels ); - break; - case GL_DEPTH_COMPONENT: - draw_depth_pixels( ctx, x, y, width, height, type, unpack, pixels ); - break; - case GL_COLOR_INDEX: - if (ctx->Visual.rgbMode) - draw_rgba_pixels(ctx, x,y, width, height, format, type, unpack, pixels); - else - draw_index_pixels(ctx, x, y, width, height, type, unpack, pixels); - break; - case GL_RED: - case GL_GREEN: - case GL_BLUE: - case GL_ALPHA: - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_RGB: - case GL_BGR: - case GL_RGBA: - case GL_BGRA: - case GL_ABGR_EXT: - draw_rgba_pixels(ctx, x, y, width, height, format, type, unpack, pixels); - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glDrawPixels(format)" ); - /* don't return yet, clean-up */ - } - - RENDER_FINISH(swrast,ctx); - - if (unpack->BufferObj->Name) { - /* done with PBO so unmap it now */ - ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, - unpack->BufferObj); - } -} - - - -#if 0 /* experimental */ -/* - * Execute glDrawDepthPixelsMESA(). - */ -void -_swrast_DrawDepthPixelsMESA( GLcontext *ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum colorFormat, GLenum colorType, - const GLvoid *colors, - GLenum depthType, const GLvoid *depths, - const struct gl_pixelstore_attrib *unpack ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - if (swrast->NewState) - _swrast_validate_derived( ctx ); - - RENDER_START(swrast,ctx); - - switch (colorFormat) { - case GL_COLOR_INDEX: - if (ctx->Visual.rgbMode) - draw_rgba_pixels(ctx, x,y, width, height, colorFormat, colorType, unpack, colors); - else - draw_index_pixels(ctx, x, y, width, height, colorType, unpack, colors); - break; - case GL_RED: - case GL_GREEN: - case GL_BLUE: - case GL_ALPHA: - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_RGB: - case GL_BGR: - case GL_RGBA: - case GL_BGRA: - case GL_ABGR_EXT: - draw_rgba_pixels(ctx, x, y, width, height, colorFormat, colorType, unpack, colors); - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, - "glDrawDepthPixelsMESA(colorFormat)" ); - } - - RENDER_FINISH(swrast,ctx); -} -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_drawpix.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_drawpix.h deleted file mode 100644 index 66067115d..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_drawpix.h +++ /dev/null @@ -1,36 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_DRAWPIXELS_H -#define S_DRAWPIXELS_H - - -#include "mtypes.h" -#include "swrast.h" - -/* XXX kill this header? */ - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_feedback.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_feedback.c deleted file mode 100644 index 26cb05cd5..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_feedback.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "enums.h" -#include "feedback.h" -#include "macros.h" - -#include "s_context.h" -#include "s_feedback.h" -#include "s_triangle.h" - - -#define FB_3D 0x01 -#define FB_4D 0x02 -#define FB_INDEX 0x04 -#define FB_COLOR 0x08 -#define FB_TEXTURE 0X10 - - - - -static void feedback_vertex( GLcontext *ctx, - const SWvertex *v, const SWvertex *pv ) -{ - const GLuint texUnit = 0; /* See section 5.3 of 1.2.1 spec */ - GLfloat win[4]; - GLfloat color[4]; - GLfloat tc[4]; - - win[0] = v->win[0]; - win[1] = v->win[1]; - win[2] = v->win[2] / ctx->DrawBuffer->_DepthMaxF; - win[3] = 1.0F / v->win[3]; - - color[0] = CHAN_TO_FLOAT(pv->color[0]); - color[1] = CHAN_TO_FLOAT(pv->color[1]); - color[2] = CHAN_TO_FLOAT(pv->color[2]); - color[3] = CHAN_TO_FLOAT(pv->color[3]); - - if (v->texcoord[texUnit][3] != 1.0 && - v->texcoord[texUnit][3] != 0.0) { - GLfloat invq = 1.0F / v->texcoord[texUnit][3]; - tc[0] = v->texcoord[texUnit][0] * invq; - tc[1] = v->texcoord[texUnit][1] * invq; - tc[2] = v->texcoord[texUnit][2] * invq; - tc[3] = v->texcoord[texUnit][3]; - } - else { - COPY_4V(tc, v->texcoord[texUnit]); - } - - _mesa_feedback_vertex( ctx, win, color, (GLfloat) v->index, tc ); -} - - -/* - * Put triangle in feedback buffer. - */ -void _swrast_feedback_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ - if (_swrast_culltriangle( ctx, v0, v1, v2 )) { - FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_POLYGON_TOKEN ); - FEEDBACK_TOKEN( ctx, (GLfloat) 3 ); /* three vertices */ - - if (ctx->Light.ShadeModel == GL_SMOOTH) { - feedback_vertex( ctx, v0, v0 ); - feedback_vertex( ctx, v1, v1 ); - feedback_vertex( ctx, v2, v2 ); - } else { - feedback_vertex( ctx, v0, v2 ); - feedback_vertex( ctx, v1, v2 ); - feedback_vertex( ctx, v2, v2 ); - } - } -} - - -void _swrast_feedback_line( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1 ) -{ - GLenum token = GL_LINE_TOKEN; - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - if (swrast->StippleCounter==0) - token = GL_LINE_RESET_TOKEN; - - FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) token ); - - if (ctx->Light.ShadeModel == GL_SMOOTH) { - feedback_vertex( ctx, v0, v0 ); - feedback_vertex( ctx, v1, v1 ); - } else { - feedback_vertex( ctx, v0, v1 ); - feedback_vertex( ctx, v1, v1 ); - } - - swrast->StippleCounter++; -} - - -void _swrast_feedback_point( GLcontext *ctx, const SWvertex *v ) -{ - FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_POINT_TOKEN ); - feedback_vertex( ctx, v, v ); -} - - -void _swrast_select_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ - if (_swrast_culltriangle( ctx, v0, v1, v2 )) { - const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF; - - _mesa_update_hitflag( ctx, v0->win[2] * zs ); - _mesa_update_hitflag( ctx, v1->win[2] * zs ); - _mesa_update_hitflag( ctx, v2->win[2] * zs ); - } -} - - -void _swrast_select_line( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1 ) -{ - const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF; - _mesa_update_hitflag( ctx, v0->win[2] * zs ); - _mesa_update_hitflag( ctx, v1->win[2] * zs ); -} - - -void _swrast_select_point( GLcontext *ctx, const SWvertex *v ) -{ - const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF; - _mesa_update_hitflag( ctx, v->win[2] * zs ); -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_feedback.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_feedback.h deleted file mode 100644 index 73f45c10b..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_feedback.h +++ /dev/null @@ -1,51 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_FEEDBACK_H -#define S_FEEDBACK_H - - -#include "mtypes.h" -#include "swrast.h" - - -extern void _swrast_feedback_point( GLcontext *ctx, const SWvertex *v ); - -extern void _swrast_feedback_line( GLcontext *ctx, - const SWvertex *v1, const SWvertex *v2 ); - -extern void _swrast_feedback_triangle( GLcontext *ctx, const SWvertex *v0, - const SWvertex *v1, const SWvertex *v2 ); - -extern void _swrast_select_point( GLcontext *ctx, const SWvertex *v ); - -extern void _swrast_select_line( GLcontext *ctx, - const SWvertex *v1, const SWvertex *v2 ); - -extern void _swrast_select_triangle( GLcontext *ctx, const SWvertex *v0, - const SWvertex *v1, const SWvertex *v2 ); - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_fog.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_fog.c deleted file mode 100644 index 0af9cd8f2..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_fog.c +++ /dev/null @@ -1,327 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "macros.h" - -#include "s_context.h" -#include "s_fog.h" -#include "s_span.h" - - -/** - * Used to convert current raster distance to a fog factor in [0,1]. - */ -GLfloat -_swrast_z_to_fogfactor(GLcontext *ctx, GLfloat z) -{ - GLfloat d, f; - - switch (ctx->Fog.Mode) { - case GL_LINEAR: - if (ctx->Fog.Start == ctx->Fog.End) - d = 1.0F; - else - d = 1.0F / (ctx->Fog.End - ctx->Fog.Start); - f = (ctx->Fog.End - z) * d; - return CLAMP(f, 0.0F, 1.0F); - case GL_EXP: - d = ctx->Fog.Density; - f = (GLfloat) exp(-d * z); - f = CLAMP(f, 0.0F, 1.0F); - return f; - case GL_EXP2: - d = ctx->Fog.Density; - f = (GLfloat) exp(-(d * d * z * z)); - f = CLAMP(f, 0.0F, 1.0F); - return f; - default: - _mesa_problem(ctx, "Bad fog mode in _swrast_z_to_fogfactor"); - return 0.0; - } -} - - -/** - * Apply fog to a span of RGBA pixels. - * The fog value are either in the span->array->fog array or interpolated from - * the fog/fogStep values. - * They fog values are either fog coordinates (Z) or fog blend factors. - * _PreferPixelFog should be in sync with that state! - */ -void -_swrast_fog_rgba_span( const GLcontext *ctx, struct sw_span *span ) -{ - const SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLchan rFog = swrast->_FogColor[RCOMP]; - const GLchan gFog = swrast->_FogColor[GCOMP]; - const GLchan bFog = swrast->_FogColor[BCOMP]; - const GLuint haveW = (span->interpMask & SPAN_W); - GLchan (*rgba)[4] = (GLchan (*)[4]) span->array->rgba; - - ASSERT(swrast->_FogEnabled); - ASSERT((span->interpMask | span->arrayMask) & SPAN_FOG); - ASSERT(span->arrayMask & SPAN_RGBA); - - /* NOTE: if haveW is true, that means the fog start/step values are - * perspective-corrected and we have to divide each fog coord by W. - */ - - /* we need to compute fog blend factors */ - if (swrast->_PreferPixelFog) { - /* The span's fog values are fog coordinates, now compute blend factors - * and blend the fragment colors with the fog color. - */ - switch (swrast->_FogMode) { - case GL_LINEAR: - { - const GLfloat fogEnd = ctx->Fog.End; - const GLfloat fogScale = (ctx->Fog.Start == ctx->Fog.End) - ? 1.0F : 1.0F / (ctx->Fog.End - ctx->Fog.Start); - const GLfloat fogStep = span->fogStep; - GLfloat fogCoord = span->fog; - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - for (i = 0; i < span->end; i++) { - GLfloat f, oneMinusF; - f = (fogEnd - FABSF(fogCoord) / w) * fogScale; - f = CLAMP(f, 0.0F, 1.0F); - oneMinusF = 1.0F - f; - rgba[i][RCOMP] = (GLchan) (f * rgba[i][RCOMP] + oneMinusF * rFog); - rgba[i][GCOMP] = (GLchan) (f * rgba[i][GCOMP] + oneMinusF * gFog); - rgba[i][BCOMP] = (GLchan) (f * rgba[i][BCOMP] + oneMinusF * bFog); - fogCoord += fogStep; - w += wStep; - } - } - break; - case GL_EXP: - { - const GLfloat density = -ctx->Fog.Density; - const GLfloat fogStep = span->fogStep; - GLfloat fogCoord = span->fog; - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - for (i = 0; i < span->end; i++) { - GLfloat f, oneMinusF; - f = (GLfloat) exp(density * FABSF(fogCoord) / w); - f = CLAMP(f, 0.0F, 1.0F); - oneMinusF = 1.0F - f; - rgba[i][RCOMP] = (GLchan) (f * rgba[i][RCOMP] + oneMinusF * rFog); - rgba[i][GCOMP] = (GLchan) (f * rgba[i][GCOMP] + oneMinusF * gFog); - rgba[i][BCOMP] = (GLchan) (f * rgba[i][BCOMP] + oneMinusF * bFog); - fogCoord += fogStep; - w += wStep; - } - } - break; - case GL_EXP2: - { - const GLfloat negDensitySquared = -ctx->Fog.Density * ctx->Fog.Density; - const GLfloat fogStep = span->fogStep; - GLfloat fogCoord = span->fog; - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - for (i = 0; i < span->end; i++) { - const GLfloat coord = fogCoord / w; - GLfloat tmp = negDensitySquared * coord * coord; - GLfloat f, oneMinusF; -#if defined(__alpha__) || defined(__alpha) - /* XXX this underflow check may be needed for other systems*/ - if (tmp < FLT_MIN_10_EXP) - tmp = FLT_MIN_10_EXP; -#endif - f = (GLfloat) exp(tmp); - f = CLAMP(f, 0.0F, 1.0F); - oneMinusF = 1.0F - f; - rgba[i][RCOMP] = (GLchan) (f * rgba[i][RCOMP] + oneMinusF * rFog); - rgba[i][GCOMP] = (GLchan) (f * rgba[i][GCOMP] + oneMinusF * gFog); - rgba[i][BCOMP] = (GLchan) (f * rgba[i][BCOMP] + oneMinusF * bFog); - fogCoord += fogStep; - w += wStep; - } - } - break; - default: - _mesa_problem(ctx, "Bad fog mode in _swrast_fog_rgba_span"); - return; - } - } - else if (span->arrayMask & SPAN_FOG) { - /* The span's fog array values are blend factors. - * They were previously computed per-vertex. - */ - GLuint i; - for (i = 0; i < span->end; i++) { - const GLfloat f = span->array->fog[i]; - const GLfloat oneMinusF = 1.0F - f; - rgba[i][RCOMP] = (GLchan) (f * rgba[i][RCOMP] + oneMinusF * rFog); - rgba[i][GCOMP] = (GLchan) (f * rgba[i][GCOMP] + oneMinusF * gFog); - rgba[i][BCOMP] = (GLchan) (f * rgba[i][BCOMP] + oneMinusF * bFog); - } - } - else { - /* The span's fog start/step values are blend factors. - * They were previously computed per-vertex. - */ - const GLfloat fogStep = span->fogStep; - GLfloat fog = span->fog; - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - ASSERT(span->interpMask & SPAN_FOG); - for (i = 0; i < span->end; i++) { - const GLfloat fact = fog / w; - const GLfloat oneMinusF = 1.0F - fact; - rgba[i][RCOMP] = (GLchan) (fact * rgba[i][RCOMP] + oneMinusF * rFog); - rgba[i][GCOMP] = (GLchan) (fact * rgba[i][GCOMP] + oneMinusF * gFog); - rgba[i][BCOMP] = (GLchan) (fact * rgba[i][BCOMP] + oneMinusF * bFog); - fog += fogStep; - w += wStep; - } - } -} - - -/** - * As above, but color index mode. - */ -void -_swrast_fog_ci_span( const GLcontext *ctx, struct sw_span *span ) -{ - const SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLuint haveW = (span->interpMask & SPAN_W); - const GLuint fogIndex = (GLuint) ctx->Fog.Index; - GLuint *index = span->array->index; - - ASSERT(swrast->_FogEnabled); - ASSERT(span->arrayMask & SPAN_INDEX); - ASSERT((span->interpMask | span->arrayMask) & SPAN_FOG); - - /* we need to compute fog blend factors */ - if (swrast->_PreferPixelFog) { - /* The span's fog values are fog coordinates, now compute blend factors - * and blend the fragment colors with the fog color. - */ - switch (ctx->Fog.Mode) { - case GL_LINEAR: - { - const GLfloat fogEnd = ctx->Fog.End; - const GLfloat fogScale = (ctx->Fog.Start == ctx->Fog.End) - ? 1.0F : 1.0F / (ctx->Fog.End - ctx->Fog.Start); - const GLfloat fogStep = span->fogStep; - GLfloat fogCoord = span->fog; - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - for (i = 0; i < span->end; i++) { - GLfloat f = (fogEnd - fogCoord / w) * fogScale; - f = CLAMP(f, 0.0F, 1.0F); - index[i] = (GLuint) ((GLfloat) index[i] + (1.0F - f) * fogIndex); - fogCoord += fogStep; - w += wStep; - } - } - break; - case GL_EXP: - { - const GLfloat density = -ctx->Fog.Density; - const GLfloat fogStep = span->fogStep; - GLfloat fogCoord = span->fog; - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - for (i = 0; i < span->end; i++) { - GLfloat f = (GLfloat) exp(density * fogCoord / w); - f = CLAMP(f, 0.0F, 1.0F); - index[i] = (GLuint) ((GLfloat) index[i] + (1.0F - f) * fogIndex); - fogCoord += fogStep; - w += wStep; - } - } - break; - case GL_EXP2: - { - const GLfloat negDensitySquared = -ctx->Fog.Density * ctx->Fog.Density; - const GLfloat fogStep = span->fogStep; - GLfloat fogCoord = span->fog; - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - for (i = 0; i < span->end; i++) { - const GLfloat coord = fogCoord / w; - GLfloat tmp = negDensitySquared * coord * coord; - GLfloat f; -#if defined(__alpha__) || defined(__alpha) - /* XXX this underflow check may be needed for other systems*/ - if (tmp < FLT_MIN_10_EXP) - tmp = FLT_MIN_10_EXP; -#endif - f = (GLfloat) exp(tmp); - f = CLAMP(f, 0.0F, 1.0F); - index[i] = (GLuint) ((GLfloat) index[i] + (1.0F - f) * fogIndex); - fogCoord += fogStep; - w += wStep; - } - } - break; - default: - _mesa_problem(ctx, "Bad fog mode in _swrast_fog_ci_span"); - return; - } - } - else if (span->arrayMask & SPAN_FOG) { - /* The span's fog array values are blend factors. - * They were previously computed per-vertex. - */ - GLuint i; - for (i = 0; i < span->end; i++) { - const GLfloat f = span->array->fog[i]; - index[i] = (GLuint) ((GLfloat) index[i] + (1.0F - f) * fogIndex); - } - } - else { - /* The span's fog start/step values are blend factors. - * They were previously computed per-vertex. - */ - const GLfloat fogStep = span->fogStep; - GLfloat fog = span->fog; - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - ASSERT(span->interpMask & SPAN_FOG); - for (i = 0; i < span->end; i++) { - const GLfloat f = fog / w; - index[i] = (GLuint) ((GLfloat) index[i] + (1.0F - f) * fogIndex); - fog += fogStep; - w += wStep; - } - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_fog.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_fog.h deleted file mode 100644 index f5744b1d9..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_fog.h +++ /dev/null @@ -1,45 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 4.1 - * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_FOG_H -#define S_FOG_H - - -#include "mtypes.h" -#include "swrast.h" - - -extern GLfloat -_swrast_z_to_fogfactor(GLcontext *ctx, GLfloat z); - -extern void -_swrast_fog_rgba_span( const GLcontext *ctx, struct sw_span *span ); - -extern void -_swrast_fog_ci_span( const GLcontext *ctx, struct sw_span *span ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_imaging.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_imaging.c deleted file mode 100644 index 5c79a7ba9..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_imaging.c +++ /dev/null @@ -1,213 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* KW: Moved these here to remove knowledge of swrast from core mesa. - * Should probably pull the entire software implementation of these - * extensions into either swrast or a sister module. - */ - -#include "s_context.h" -#include "s_span.h" -#include "colortab.h" -#include "convolve.h" - - -void -_swrast_CopyColorTable( GLcontext *ctx, - GLenum target, GLenum internalformat, - GLint x, GLint y, GLsizei width) -{ - GLchan data[MAX_WIDTH][4]; - struct gl_buffer_object *bufferSave; - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - /* no readbuffer - OK */ - return; - } - - /* Select buffer to read from */ - _swrast_use_read_buffer(ctx); - - if (width > MAX_WIDTH) - width = MAX_WIDTH; - - /* read the data from framebuffer */ - _swrast_read_rgba_span( ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, x, y, data ); - - /* Restore reading from draw buffer (the default) */ - _swrast_use_draw_buffer(ctx); - - /* save PBO binding */ - bufferSave = ctx->Unpack.BufferObj; - ctx->Unpack.BufferObj = ctx->Array.NullBufferObj; - - _mesa_ColorTable(target, internalformat, width, GL_RGBA, CHAN_TYPE, data); - - /* restore PBO binding */ - ctx->Unpack.BufferObj = bufferSave; -} - - -void -_swrast_CopyColorSubTable( GLcontext *ctx,GLenum target, GLsizei start, - GLint x, GLint y, GLsizei width) -{ - GLchan data[MAX_WIDTH][4]; - struct gl_buffer_object *bufferSave; - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - /* no readbuffer - OK */ - return; - } - - /* Select buffer to read from */ - _swrast_use_read_buffer(ctx); - - if (width > MAX_WIDTH) - width = MAX_WIDTH; - - /* read the data from framebuffer */ - _swrast_read_rgba_span( ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, x, y, data ); - - /* Restore reading from draw buffer (the default) */ - _swrast_use_draw_buffer(ctx); - - /* save PBO binding */ - bufferSave = ctx->Unpack.BufferObj; - ctx->Unpack.BufferObj = ctx->Array.NullBufferObj; - - _mesa_ColorSubTable(target, start, width, GL_RGBA, CHAN_TYPE, data); - - /* restore PBO binding */ - ctx->Unpack.BufferObj = bufferSave; -} - - -void -_swrast_CopyConvolutionFilter1D(GLcontext *ctx, GLenum target, - GLenum internalFormat, - GLint x, GLint y, GLsizei width) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLchan rgba[MAX_CONVOLUTION_WIDTH][4]; - struct gl_buffer_object *bufferSave; - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - /* no readbuffer - OK */ - return; - } - - /* Select buffer to read from */ - _swrast_use_read_buffer(ctx); - - RENDER_START( swrast, ctx ); - - /* read the data from framebuffer */ - _swrast_read_rgba_span( ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, x, y, (GLchan (*)[4]) rgba ); - - RENDER_FINISH( swrast, ctx ); - - /* Restore reading from draw buffer (the default) */ - _swrast_use_draw_buffer(ctx); - - /* save PBO binding */ - bufferSave = ctx->Unpack.BufferObj; - ctx->Unpack.BufferObj = ctx->Array.NullBufferObj; - - /* store as convolution filter */ - _mesa_ConvolutionFilter1D(target, internalFormat, width, - GL_RGBA, CHAN_TYPE, rgba); - - /* restore PBO binding */ - ctx->Unpack.BufferObj = bufferSave; -} - - -void -_swrast_CopyConvolutionFilter2D(GLcontext *ctx, GLenum target, - GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLsizei height) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_pixelstore_attrib packSave; - GLchan rgba[MAX_CONVOLUTION_HEIGHT][MAX_CONVOLUTION_WIDTH][4]; - GLint i; - struct gl_buffer_object *bufferSave; - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - /* no readbuffer - OK */ - return; - } - - /* Select buffer to read from */ - _swrast_use_read_buffer(ctx); - - RENDER_START(swrast,ctx); - - /* read pixels from framebuffer */ - for (i = 0; i < height; i++) { - _swrast_read_rgba_span( ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, x, y + i, (GLchan (*)[4]) rgba[i] ); - } - - RENDER_FINISH(swrast,ctx); - - /* Restore reading from draw buffer (the default) */ - _swrast_use_draw_buffer(ctx); - - /* - * HACK: save & restore context state so we can store this as a - * convolution filter via the GL api. Doesn't call any callbacks - * hanging off ctx->Unpack statechanges. - */ - - packSave = ctx->Unpack; /* save pixel packing params */ - - ctx->Unpack.Alignment = 1; - ctx->Unpack.RowLength = MAX_CONVOLUTION_WIDTH; - ctx->Unpack.SkipPixels = 0; - ctx->Unpack.SkipRows = 0; - ctx->Unpack.ImageHeight = 0; - ctx->Unpack.SkipImages = 0; - ctx->Unpack.SwapBytes = GL_FALSE; - ctx->Unpack.LsbFirst = GL_FALSE; - ctx->Unpack.BufferObj = ctx->Array.NullBufferObj; - ctx->NewState |= _NEW_PACKUNPACK; - - /* save PBO binding */ - bufferSave = ctx->Unpack.BufferObj; - ctx->Unpack.BufferObj = ctx->Array.NullBufferObj; - - _mesa_ConvolutionFilter2D(target, internalFormat, width, height, - GL_RGBA, CHAN_TYPE, rgba); - - /* restore PBO binding */ - ctx->Unpack.BufferObj = bufferSave; - - ctx->Unpack = packSave; /* restore pixel packing params */ - ctx->NewState |= _NEW_PACKUNPACK; -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_lines.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_lines.c deleted file mode 100644 index dccc92cbd..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_lines.c +++ /dev/null @@ -1,338 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "colormac.h" -#include "macros.h" -#include "nvfragprog.h" -#include "s_aaline.h" -#include "s_context.h" -#include "s_depth.h" -#include "s_feedback.h" -#include "s_lines.h" -#include "s_span.h" - - -/* - * Init the mask[] array to implement a line stipple. - */ -static void -compute_stipple_mask( GLcontext *ctx, GLuint len, GLubyte mask[] ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLuint i; - - for (i = 0; i < len; i++) { - GLuint bit = (swrast->StippleCounter / ctx->Line.StippleFactor) & 0xf; - if ((1 << bit) & ctx->Line.StipplePattern) { - mask[i] = GL_TRUE; - } - else { - mask[i] = GL_FALSE; - } - swrast->StippleCounter++; - } -} - - -/* - * To draw a wide line we can simply redraw the span N times, side by side. - */ -static void -draw_wide_line( GLcontext *ctx, struct sw_span *span, GLboolean xMajor ) -{ - GLint width, start; - - ASSERT(span->end < MAX_WIDTH); - - width = (GLint) CLAMP( ctx->Line._Width, MIN_LINE_WIDTH, MAX_LINE_WIDTH ); - - if (width & 1) - start = width / 2; - else - start = width / 2 - 1; - - if (xMajor) { - GLint *y = span->array->y; - GLuint i; - GLint w; - for (w = 0; w < width; w++) { - if (w == 0) { - for (i = 0; i < span->end; i++) - y[i] -= start; - } - else { - for (i = 0; i < span->end; i++) - y[i]++; - } - if (ctx->Visual.rgbMode) - _swrast_write_rgba_span(ctx, span); - else - _swrast_write_index_span(ctx, span); - } - } - else { - GLint *x = span->array->x; - GLuint i; - GLint w; - for (w = 0; w < width; w++) { - if (w == 0) { - for (i = 0; i < span->end; i++) - x[i] -= start; - } - else { - for (i = 0; i < span->end; i++) - x[i]++; - } - if (ctx->Visual.rgbMode) - _swrast_write_rgba_span(ctx, span); - else - _swrast_write_index_span(ctx, span); - } - } -} - - - -/**********************************************************************/ -/***** Rasterization *****/ -/**********************************************************************/ - -/* Simple color index line (no stipple, width=1, no Z, no fog, no tex)*/ -#define NAME simple_ci_line -#define INTERP_INDEX -#define RENDER_SPAN(span) _swrast_write_index_span(ctx, &span) -#include "s_linetemp.h" - -/* Simple RGBA index line (no stipple, width=1, no Z, no fog, no tex)*/ -#define NAME simple_rgba_line -#define INTERP_RGBA -#define RENDER_SPAN(span) _swrast_write_rgba_span(ctx, &span); -#include "s_linetemp.h" - - -/* Z, fog, wide, stipple color index line */ -#define NAME general_ci_line -#define INTERP_INDEX -#define INTERP_Z -#define INTERP_FOG -#define RENDER_SPAN(span) \ - if (ctx->Line.StippleFlag) { \ - span.arrayMask |= SPAN_MASK; \ - compute_stipple_mask(ctx, span.end, span.array->mask); \ - } \ - if (ctx->Line._Width > 1.0) { \ - draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \ - } \ - else { \ - _swrast_write_index_span(ctx, &span); \ - } -#include "s_linetemp.h" - - -/* Z, fog, wide, stipple RGBA line */ -#define NAME general_rgba_line -#define INTERP_RGBA -#define INTERP_Z -#define INTERP_FOG -#define RENDER_SPAN(span) \ - if (ctx->Line.StippleFlag) { \ - span.arrayMask |= SPAN_MASK; \ - compute_stipple_mask(ctx, span.end, span.array->mask); \ - } \ - if (ctx->Line._Width > 1.0) { \ - draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \ - } \ - else { \ - _swrast_write_rgba_span(ctx, &span); \ - } -#include "s_linetemp.h" - - -/* Single-texture line, w/ fog, Z, specular, etc. */ -#define NAME textured_line -#define INTERP_RGBA -#define INTERP_Z -#define INTERP_FOG -#define INTERP_TEX -#define RENDER_SPAN(span) \ - if (ctx->Line.StippleFlag) { \ - span.arrayMask |= SPAN_MASK; \ - compute_stipple_mask(ctx, span.end, span.array->mask); \ - } \ - if (ctx->Line._Width > 1.0) { \ - draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \ - } \ - else { \ - _swrast_write_rgba_span(ctx, &span); \ - } -#include "s_linetemp.h" - - -/* Multi-texture or separate specular line, w/ fog, Z, specular, etc. */ -#define NAME multitextured_line -#define INTERP_RGBA -#define INTERP_SPEC -#define INTERP_Z -#define INTERP_FOG -#define INTERP_MULTITEX -#define RENDER_SPAN(span) \ - if (ctx->Line.StippleFlag) { \ - span.arrayMask |= SPAN_MASK; \ - compute_stipple_mask(ctx, span.end, span.array->mask); \ - } \ - if (ctx->Line._Width > 1.0) { \ - draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \ - } \ - else { \ - _swrast_write_rgba_span(ctx, &span); \ - } -#include "s_linetemp.h" - - - -void -_swrast_add_spec_terms_line( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1 ) -{ - SWvertex *ncv0 = (SWvertex *)v0; - SWvertex *ncv1 = (SWvertex *)v1; - GLchan c[2][4]; - COPY_CHAN4( c[0], ncv0->color ); - COPY_CHAN4( c[1], ncv1->color ); - ACC_3V( ncv0->color, ncv0->specular ); - ACC_3V( ncv1->color, ncv1->specular ); - SWRAST_CONTEXT(ctx)->SpecLine( ctx, ncv0, ncv1 ); - COPY_CHAN4( ncv0->color, c[0] ); - COPY_CHAN4( ncv1->color, c[1] ); -} - - -#ifdef DEBUG -extern void -_mesa_print_line_function(GLcontext *ctx); /* silence compiler warning */ -void -_mesa_print_line_function(GLcontext *ctx) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - _mesa_printf("Line Func == "); - if (swrast->Line == simple_ci_line) - _mesa_printf("simple_ci_line\n"); - else if (swrast->Line == simple_rgba_line) - _mesa_printf("simple_rgba_line\n"); - else if (swrast->Line == general_ci_line) - _mesa_printf("general_ci_line\n"); - else if (swrast->Line == general_rgba_line) - _mesa_printf("general_rgba_line\n"); - else if (swrast->Line == textured_line) - _mesa_printf("textured_line\n"); - else if (swrast->Line == multitextured_line) - _mesa_printf("multitextured_line\n"); - else - _mesa_printf("Driver func %p\n", (void *(*)()) swrast->Line); -} -#endif - - - -#ifdef DEBUG - -/* record the current line function name */ -static const char *lineFuncName = NULL; - -#define USE(lineFunc) \ -do { \ - lineFuncName = #lineFunc; \ - /*_mesa_printf("%s\n", lineFuncName);*/ \ - swrast->Line = lineFunc; \ -} while (0) - -#else - -#define USE(lineFunc) swrast->Line = lineFunc - -#endif - - - -/* - * Determine which line drawing function to use given the current - * rendering context. - * - * Please update the summary flag _SWRAST_NEW_LINE if you add or remove - * tests to this code. - */ -void -_swrast_choose_line( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLboolean rgbmode = ctx->Visual.rgbMode; - - if (ctx->RenderMode == GL_RENDER) { - if (ctx->Line.SmoothFlag) { - /* antialiased lines */ - _swrast_choose_aa_line_function(ctx); - ASSERT(swrast->Line); - } - else if (ctx->Texture._EnabledCoordUnits) { - /* textured lines */ - if (ctx->Texture._EnabledCoordUnits > 0x1 - || NEED_SECONDARY_COLOR(ctx)) { - /* multi-texture and/or separate specular color */ - USE(multitextured_line); - } - else { - USE(textured_line); - } - } - else if (ctx->Depth.Test || swrast->_FogEnabled || ctx->Line._Width != 1.0 - || ctx->Line.StippleFlag) { - /* no texture, but Z, fog, width>1, stipple, etc. */ - if (rgbmode) - USE(general_rgba_line); - else - USE(general_ci_line); - } - else { - /* simplest lines */ - if (rgbmode) - USE(simple_rgba_line); - else - USE(simple_ci_line); - } - } - else if (ctx->RenderMode == GL_FEEDBACK) { - USE(_swrast_feedback_line); - } - else { - ASSERT(ctx->RenderMode == GL_SELECT); - USE(_swrast_select_line); - } - - /*_mesa_print_line_function(ctx);*/ -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_lines.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_lines.h deleted file mode 100644 index 5372b99b9..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_lines.h +++ /dev/null @@ -1,41 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_LINES_H -#define S_LINES_H - -#include "mtypes.h" - -void -_swrast_choose_line( GLcontext *ctx ); - -void -_swrast_add_spec_terms_line( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1 ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_linetemp.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_linetemp.h deleted file mode 100644 index af7aeabf6..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_linetemp.h +++ /dev/null @@ -1,454 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * Line Rasterizer Template - * - * This file is #include'd to generate custom line rasterizers. - * - * The following macros may be defined to indicate what auxillary information - * must be interplated along the line: - * INTERP_Z - if defined, interpolate Z values - * INTERP_FOG - if defined, interpolate FOG values - * INTERP_RGBA - if defined, interpolate RGBA values - * INTERP_SPEC - if defined, interpolate specular RGB values - * INTERP_INDEX - if defined, interpolate color index values - * INTERP_TEX - if defined, interpolate unit 0 texcoords - * INTERP_MULTITEX - if defined, interpolate multi-texcoords - * - * When one can directly address pixels in the color buffer the following - * macros can be defined and used to directly compute pixel addresses during - * rasterization (see pixelPtr): - * PIXEL_TYPE - the datatype of a pixel (GLubyte, GLushort, GLuint) - * BYTES_PER_ROW - number of bytes per row in the color buffer - * PIXEL_ADDRESS(X,Y) - returns the address of pixel at (X,Y) where - * Y==0 at bottom of screen and increases upward. - * - * Similarly, for direct depth buffer access, this type is used for depth - * buffer addressing: - * DEPTH_TYPE - either GLushort or GLuint - * - * Optionally, one may provide one-time setup code - * SETUP_CODE - code which is to be executed once per line - * - * To actually "plot" each pixel the PLOT macro must be defined... - * PLOT(X,Y) - code to plot a pixel. Example: - * if (Z < *zPtr) { - * *zPtr = Z; - * color = pack_rgb( FixedToInt(r0), FixedToInt(g0), - * FixedToInt(b0) ); - * put_pixel( X, Y, color ); - * } - * - * This code was designed for the origin to be in the lower-left corner. - * - */ - - -static void -NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 ) -{ - struct sw_span span; - GLuint interpFlags = 0; - GLint x0 = (GLint) vert0->win[0]; - GLint x1 = (GLint) vert1->win[0]; - GLint y0 = (GLint) vert0->win[1]; - GLint y1 = (GLint) vert1->win[1]; - GLint dx, dy; - GLint numPixels; - GLint xstep, ystep; -#if defined(DEPTH_TYPE) - const GLint depthBits = ctx->Visual.depthBits; - const GLint fixedToDepthShift = depthBits <= 16 ? FIXED_SHIFT : 0; - struct gl_renderbuffer *zrb = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; -#define FixedToDepth(F) ((F) >> fixedToDepthShift) - GLint zPtrXstep, zPtrYstep; - DEPTH_TYPE *zPtr; -#elif defined(INTERP_Z) - const GLint depthBits = ctx->Visual.depthBits; -#endif -#ifdef PIXEL_ADDRESS - PIXEL_TYPE *pixelPtr; - GLint pixelXstep, pixelYstep; -#endif - -#ifdef SETUP_CODE - SETUP_CODE -#endif - - /* Cull primitives with malformed coordinates. - */ - { - GLfloat tmp = vert0->win[0] + vert0->win[1] - + vert1->win[0] + vert1->win[1]; - if (IS_INF_OR_NAN(tmp)) - return; - } - - /* - printf("%s():\n", __FUNCTION__); - printf(" (%f, %f, %f) -> (%f, %f, %f)\n", - vert0->win[0], vert0->win[1], vert0->win[2], - vert1->win[0], vert1->win[1], vert1->win[2]); - printf(" (%d, %d, %d) -> (%d, %d, %d)\n", - vert0->color[0], vert0->color[1], vert0->color[2], - vert1->color[0], vert1->color[1], vert1->color[2]); - printf(" (%d, %d, %d) -> (%d, %d, %d)\n", - vert0->specular[0], vert0->specular[1], vert0->specular[2], - vert1->specular[0], vert1->specular[1], vert1->specular[2]); - */ - -/* - * Despite being clipped to the view volume, the line's window coordinates - * may just lie outside the window bounds. That is, if the legal window - * coordinates are [0,W-1][0,H-1], it's possible for x==W and/or y==H. - * This quick and dirty code nudges the endpoints inside the window if - * necessary. - */ -#ifdef CLIP_HACK - { - GLint w = ctx->DrawBuffer->Width; - GLint h = ctx->DrawBuffer->Height; - if ((x0==w) | (x1==w)) { - if ((x0==w) & (x1==w)) - return; - x0 -= x0==w; - x1 -= x1==w; - } - if ((y0==h) | (y1==h)) { - if ((y0==h) & (y1==h)) - return; - y0 -= y0==h; - y1 -= y1==h; - } - } -#endif - - dx = x1 - x0; - dy = y1 - y0; - if (dx == 0 && dy == 0) - return; - -#ifdef DEPTH_TYPE - zPtr = (DEPTH_TYPE *) zrb->GetPointer(ctx, zrb, x0, y0); -#endif -#ifdef PIXEL_ADDRESS - pixelPtr = (PIXEL_TYPE *) PIXEL_ADDRESS(x0,y0); -#endif - - if (dx<0) { - dx = -dx; /* make positive */ - xstep = -1; -#ifdef DEPTH_TYPE - zPtrXstep = -((GLint)sizeof(DEPTH_TYPE)); -#endif -#ifdef PIXEL_ADDRESS - pixelXstep = -((GLint)sizeof(PIXEL_TYPE)); -#endif - } - else { - xstep = 1; -#ifdef DEPTH_TYPE - zPtrXstep = ((GLint)sizeof(DEPTH_TYPE)); -#endif -#ifdef PIXEL_ADDRESS - pixelXstep = ((GLint)sizeof(PIXEL_TYPE)); -#endif - } - - if (dy<0) { - dy = -dy; /* make positive */ - ystep = -1; -#ifdef DEPTH_TYPE - zPtrYstep = -((GLint) (ctx->DrawBuffer->Width * sizeof(DEPTH_TYPE))); -#endif -#ifdef PIXEL_ADDRESS - pixelYstep = BYTES_PER_ROW; -#endif - } - else { - ystep = 1; -#ifdef DEPTH_TYPE - zPtrYstep = (GLint) (ctx->DrawBuffer->Width * sizeof(DEPTH_TYPE)); -#endif -#ifdef PIXEL_ADDRESS - pixelYstep = -(BYTES_PER_ROW); -#endif - } - - ASSERT(dx >= 0); - ASSERT(dy >= 0); - - numPixels = MAX2(dx, dy); - - /* - * Span setup: compute start and step values for all interpolated values. - */ -#ifdef INTERP_RGBA - interpFlags |= SPAN_RGBA; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - span.red = ChanToFixed(vert0->color[0]); - span.green = ChanToFixed(vert0->color[1]); - span.blue = ChanToFixed(vert0->color[2]); - span.alpha = ChanToFixed(vert0->color[3]); - span.redStep = (ChanToFixed(vert1->color[0]) - span.red ) / numPixels; - span.greenStep = (ChanToFixed(vert1->color[1]) - span.green) / numPixels; - span.blueStep = (ChanToFixed(vert1->color[2]) - span.blue ) / numPixels; - span.alphaStep = (ChanToFixed(vert1->color[3]) - span.alpha) / numPixels; - } - else { - span.red = ChanToFixed(vert1->color[0]); - span.green = ChanToFixed(vert1->color[1]); - span.blue = ChanToFixed(vert1->color[2]); - span.alpha = ChanToFixed(vert1->color[3]); - span.redStep = 0; - span.greenStep = 0; - span.blueStep = 0; - span.alphaStep = 0; - } -#endif -#ifdef INTERP_SPEC - interpFlags |= SPAN_SPEC; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - span.specRed = ChanToFixed(vert0->specular[0]); - span.specGreen = ChanToFixed(vert0->specular[1]); - span.specBlue = ChanToFixed(vert0->specular[2]); - span.specRedStep = (ChanToFixed(vert1->specular[0]) - span.specRed) / numPixels; - span.specGreenStep = (ChanToFixed(vert1->specular[1]) - span.specBlue) / numPixels; - span.specBlueStep = (ChanToFixed(vert1->specular[2]) - span.specGreen) / numPixels; - } - else { - span.specRed = ChanToFixed(vert1->specular[0]); - span.specGreen = ChanToFixed(vert1->specular[1]); - span.specBlue = ChanToFixed(vert1->specular[2]); - span.specRedStep = 0; - span.specGreenStep = 0; - span.specBlueStep = 0; - } -#endif -#ifdef INTERP_INDEX - interpFlags |= SPAN_INDEX; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - span.index = FloatToFixed(vert0->index); - span.indexStep = FloatToFixed(vert1->index - vert0->index) / numPixels; - } - else { - span.index = FloatToFixed(vert1->index); - span.indexStep = 0; - } -#endif -#if defined(INTERP_Z) || defined(DEPTH_TYPE) - interpFlags |= SPAN_Z; - { - if (depthBits <= 16) { - span.z = FloatToFixed(vert0->win[2]) + FIXED_HALF; - span.zStep = FloatToFixed(vert1->win[2] - vert0->win[2]) / numPixels; - } - else { - /* don't use fixed point */ - span.z = (GLint) vert0->win[2]; - span.zStep = (GLint) ((vert1->win[2] - vert0->win[2]) / numPixels); - } - } -#endif -#ifdef INTERP_FOG - interpFlags |= SPAN_FOG; - span.fog = vert0->fog; - span.fogStep = (vert1->fog - vert0->fog) / numPixels; -#endif -#ifdef INTERP_TEX - interpFlags |= SPAN_TEXTURE; - { - const GLfloat invw0 = vert0->win[3]; - const GLfloat invw1 = vert1->win[3]; - const GLfloat invLen = 1.0F / numPixels; - GLfloat ds, dt, dr, dq; - span.tex[0][0] = invw0 * vert0->texcoord[0][0]; - span.tex[0][1] = invw0 * vert0->texcoord[0][1]; - span.tex[0][2] = invw0 * vert0->texcoord[0][2]; - span.tex[0][3] = invw0 * vert0->texcoord[0][3]; - ds = (invw1 * vert1->texcoord[0][0]) - span.tex[0][0]; - dt = (invw1 * vert1->texcoord[0][1]) - span.tex[0][1]; - dr = (invw1 * vert1->texcoord[0][2]) - span.tex[0][2]; - dq = (invw1 * vert1->texcoord[0][3]) - span.tex[0][3]; - span.texStepX[0][0] = ds * invLen; - span.texStepX[0][1] = dt * invLen; - span.texStepX[0][2] = dr * invLen; - span.texStepX[0][3] = dq * invLen; - span.texStepY[0][0] = 0.0F; - span.texStepY[0][1] = 0.0F; - span.texStepY[0][2] = 0.0F; - span.texStepY[0][3] = 0.0F; - } -#endif -#ifdef INTERP_MULTITEX - interpFlags |= SPAN_TEXTURE; - { - const GLfloat invLen = 1.0F / numPixels; - GLuint u; - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture.Unit[u]._ReallyEnabled) { - const GLfloat invw0 = vert0->win[3]; - const GLfloat invw1 = vert1->win[3]; - GLfloat ds, dt, dr, dq; - span.tex[u][0] = invw0 * vert0->texcoord[u][0]; - span.tex[u][1] = invw0 * vert0->texcoord[u][1]; - span.tex[u][2] = invw0 * vert0->texcoord[u][2]; - span.tex[u][3] = invw0 * vert0->texcoord[u][3]; - ds = (invw1 * vert1->texcoord[u][0]) - span.tex[u][0]; - dt = (invw1 * vert1->texcoord[u][1]) - span.tex[u][1]; - dr = (invw1 * vert1->texcoord[u][2]) - span.tex[u][2]; - dq = (invw1 * vert1->texcoord[u][3]) - span.tex[u][3]; - span.texStepX[u][0] = ds * invLen; - span.texStepX[u][1] = dt * invLen; - span.texStepX[u][2] = dr * invLen; - span.texStepX[u][3] = dq * invLen; - span.texStepY[u][0] = 0.0F; - span.texStepY[u][1] = 0.0F; - span.texStepY[u][2] = 0.0F; - span.texStepY[u][3] = 0.0F; - } - } - } -#endif - - INIT_SPAN(span, GL_LINE, numPixels, interpFlags, SPAN_XY); - - /* Need these for fragment prog texcoord interpolation */ - span.w = 1.0F; - span.dwdx = 0.0F; - span.dwdy = 0.0F; - - /* - * Draw - */ - - if (dx > dy) { - /*** X-major line ***/ - GLint i; - GLint errorInc = dy+dy; - GLint error = errorInc-dx; - GLint errorDec = error-dx; - - for (i = 0; i < dx; i++) { -#ifdef DEPTH_TYPE - GLdepth Z = FixedToDepth(span.z); -#endif -#ifdef PLOT - PLOT( x0, y0 ); -#else - span.array->x[i] = x0; - span.array->y[i] = y0; -#endif - x0 += xstep; -#ifdef DEPTH_TYPE - zPtr = (DEPTH_TYPE *) ((GLubyte*) zPtr + zPtrXstep); - span.z += span.zStep; -#endif -#ifdef PIXEL_ADDRESS - pixelPtr = (PIXEL_TYPE*) ((GLubyte*) pixelPtr + pixelXstep); -#endif - if (error<0) { - error += errorInc; - } - else { - error += errorDec; - y0 += ystep; -#ifdef DEPTH_TYPE - zPtr = (DEPTH_TYPE *) ((GLubyte*) zPtr + zPtrYstep); -#endif -#ifdef PIXEL_ADDRESS - pixelPtr = (PIXEL_TYPE*) ((GLubyte*) pixelPtr + pixelYstep); -#endif - } - } - } - else { - /*** Y-major line ***/ - GLint i; - GLint errorInc = dx+dx; - GLint error = errorInc-dy; - GLint errorDec = error-dy; - - for (i=0;i<dy;i++) { -#ifdef DEPTH_TYPE - GLdepth Z = FixedToDepth(span.z); -#endif -#ifdef PLOT - PLOT( x0, y0 ); -#else - span.array->x[i] = x0; - span.array->y[i] = y0; -#endif - y0 += ystep; -#ifdef DEPTH_TYPE - zPtr = (DEPTH_TYPE *) ((GLubyte*) zPtr + zPtrYstep); - span.z += span.zStep; -#endif -#ifdef PIXEL_ADDRESS - pixelPtr = (PIXEL_TYPE*) ((GLubyte*) pixelPtr + pixelYstep); -#endif - if (error<0) { - error += errorInc; - } - else { - error += errorDec; - x0 += xstep; -#ifdef DEPTH_TYPE - zPtr = (DEPTH_TYPE *) ((GLubyte*) zPtr + zPtrXstep); -#endif -#ifdef PIXEL_ADDRESS - pixelPtr = (PIXEL_TYPE*) ((GLubyte*) pixelPtr + pixelXstep); -#endif - } - } - } - -#ifdef RENDER_SPAN - RENDER_SPAN( span ); -#endif - - (void)span; - -} - - -#undef NAME -#undef INTERP_Z -#undef INTERP_FOG -#undef INTERP_RGBA -#undef INTERP_SPEC -#undef INTERP_TEX -#undef INTERP_MULTITEX -#undef INTERP_INDEX -#undef PIXEL_ADDRESS -#undef PIXEL_TYPE -#undef DEPTH_TYPE -#undef BYTES_PER_ROW -#undef SETUP_CODE -#undef PLOT -#undef CLIP_HACK -#undef FixedToDepth -#undef RENDER_SPAN diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_logic.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_logic.c deleted file mode 100644 index ff3c3fc2f..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_logic.c +++ /dev/null @@ -1,244 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "imports.h" -#include "macros.h" - -#include "s_context.h" -#include "s_logic.h" -#include "s_span.h" - - -#define LOGIC_OP_LOOP(MODE) \ -do { \ - GLuint i; \ - switch (MODE) { \ - case GL_CLEAR: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = 0; \ - } \ - } \ - break; \ - case GL_SET: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = ~0; \ - } \ - } \ - break; \ - case GL_COPY: \ - /* do nothing */ \ - break; \ - case GL_COPY_INVERTED: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = ~src[i]; \ - } \ - } \ - break; \ - case GL_NOOP: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = dest[i]; \ - } \ - } \ - break; \ - case GL_INVERT: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = ~dest[i]; \ - } \ - } \ - break; \ - case GL_AND: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] &= dest[i]; \ - } \ - } \ - break; \ - case GL_NAND: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = ~(src[i] & dest[i]); \ - } \ - } \ - break; \ - case GL_OR: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] |= dest[i]; \ - } \ - } \ - break; \ - case GL_NOR: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = ~(src[i] | dest[i]); \ - } \ - } \ - break; \ - case GL_XOR: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] ^= dest[i]; \ - } \ - } \ - break; \ - case GL_EQUIV: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = ~(src[i] ^ dest[i]); \ - } \ - } \ - break; \ - case GL_AND_REVERSE: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = src[i] & ~dest[i]; \ - } \ - } \ - break; \ - case GL_AND_INVERTED: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = ~src[i] & dest[i]; \ - } \ - } \ - break; \ - case GL_OR_REVERSE: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = src[i] | ~dest[i]; \ - } \ - } \ - break; \ - case GL_OR_INVERTED: \ - for (i = 0; i < n; i++) { \ - if (mask[i]) { \ - src[i] = ~src[i] | dest[i]; \ - } \ - } \ - break; \ - default: \ - _mesa_problem(ctx, "bad logicop mode");\ - } \ -} while (0) - - - -static void -logicop_ubyte(GLcontext *ctx, GLuint n, GLubyte src[], const GLubyte dest[], - const GLubyte mask[]) -{ - LOGIC_OP_LOOP(ctx->Color.LogicOp); -} - - -static void -logicop_ushort(GLcontext *ctx, GLuint n, GLushort src[], const GLushort dest[], - const GLubyte mask[]) -{ - LOGIC_OP_LOOP(ctx->Color.LogicOp); -} - - -static void -logicop_uint(GLcontext *ctx, GLuint n, GLuint src[], const GLuint dest[], - const GLubyte mask[]) -{ - LOGIC_OP_LOOP(ctx->Color.LogicOp); -} - - - -/* - * Apply the current logic operator to a span of CI pixels. This is only - * used if the device driver can't do logic ops. - */ -void -_swrast_logicop_ci_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLuint index[]) -{ - GLuint dest[MAX_WIDTH]; - - ASSERT(span->end < MAX_WIDTH); - ASSERT(rb->DataType == GL_UNSIGNED_INT); - - /* Read dest values from frame buffer */ - if (span->arrayMask & SPAN_XY) { - _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y, - dest, sizeof(GLuint)); - } - else { - rb->GetRow(ctx, rb, span->end, span->x, span->y, dest); - } - - logicop_uint(ctx, span->end, index, dest, span->array->mask); -} - - -/** - * Apply the current logic operator to a span of RGBA pixels. - * We can handle horizontal runs of pixels (spans) or arrays of x/y - * pixel coordinates. - */ -void -_swrast_logicop_rgba_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLchan rgba[][4]) -{ - GLchan dest[MAX_WIDTH][4]; - - ASSERT(span->end < MAX_WIDTH); - ASSERT(span->arrayMask & SPAN_RGBA); - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - - if (span->arrayMask & SPAN_XY) { - _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y, - dest, 4 * sizeof(GLchan)); - } - else { - _swrast_read_rgba_span(ctx, rb, span->end, span->x, span->y, dest); - } - - /* XXX make this a runtime test */ -#if CHAN_TYPE == GL_UNSIGNED_BYTE - /* treat 4*GLubyte as GLuint */ - logicop_uint(ctx, span->end, (GLuint *) rgba, - (const GLuint *) dest, span->array->mask); -#elif CHAN_TYPE == GL_UNSIGNED_SHORT - logicop_ushort(ctx, 4 * span->end, (GLushort *) rgba, - (const GLushort *) dest, span->array->mask); -#elif CHAN_TYPE == GL_FLOAT - logicop_uint(ctx, 4 * span->end, (GLuint *) rgba, - (const GLuint *) dest, span->array->mask); -#endif - (void) logicop_ubyte; - (void) logicop_ushort; - (void) logicop_uint; -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_logic.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_logic.h deleted file mode 100644 index ce5f183ff..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_logic.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_LOGIC_H -#define S_LOGIC_H - - -#include "mtypes.h" -#include "swrast.h" - - -extern void -_swrast_logicop_ci_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLuint index[]); - - -extern void -_swrast_logicop_rgba_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLchan rgba[][4]); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_masking.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_masking.c deleted file mode 100644 index 65c4e7d01..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_masking.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * Implement the effect of glColorMask and glIndexMask in software. - */ - - -#include "glheader.h" -#include "enums.h" -#include "macros.h" - -#include "s_context.h" -#include "s_masking.h" -#include "s_span.h" - - - -void -_swrast_mask_rgba_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLchan rgba[][4]) -{ - GLchan dest[MAX_WIDTH][4]; -#if CHAN_BITS == 8 - GLuint srcMask = *((GLuint*)ctx->Color.ColorMask); - GLuint dstMask = ~srcMask; - GLuint *rgba32 = (GLuint *) rgba; - GLuint *dest32 = (GLuint *) dest; -#else - const GLboolean rMask = ctx->Color.ColorMask[RCOMP]; - const GLboolean gMask = ctx->Color.ColorMask[GCOMP]; - const GLboolean bMask = ctx->Color.ColorMask[BCOMP]; - const GLboolean aMask = ctx->Color.ColorMask[ACOMP]; -#endif - const GLuint n = span->end; - GLuint i; - - ASSERT(n < MAX_WIDTH); - ASSERT(span->arrayMask & SPAN_RGBA); - - if (span->arrayMask & SPAN_XY) { - _swrast_get_values(ctx, rb, n, span->array->x, span->array->y, - dest, 4 * sizeof(GLchan)); - } - else { - _swrast_read_rgba_span(ctx, rb, n, span->x, span->y, dest); - } - -#if CHAN_BITS == 8 - for (i = 0; i < n; i++) { - rgba32[i] = (rgba32[i] & srcMask) | (dest32[i] & dstMask); - } -#else - for (i = 0; i < n; i++) { - if (!rMask) rgba[i][RCOMP] = dest[i][RCOMP]; - if (!gMask) rgba[i][GCOMP] = dest[i][GCOMP]; - if (!bMask) rgba[i][BCOMP] = dest[i][BCOMP]; - if (!aMask) rgba[i][ACOMP] = dest[i][ACOMP]; - } -#endif -} - - -/* - * Apply glColorMask to a span of RGBA pixels. - */ -void -_swrast_mask_rgba_array(GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLchan rgba[][4]) -{ - GLchan dest[MAX_WIDTH][4]; - GLuint i; - -#if CHAN_BITS == 8 - - GLuint srcMask = *((GLuint*)ctx->Color.ColorMask); - GLuint dstMask = ~srcMask; - GLuint *rgba32 = (GLuint *) rgba; - GLuint *dest32 = (GLuint *) dest; - - _swrast_read_rgba_span( ctx, rb, n, x, y, dest ); - for (i = 0; i < n; i++) { - rgba32[i] = (rgba32[i] & srcMask) | (dest32[i] & dstMask); - } - -#else - - const GLint rMask = ctx->Color.ColorMask[RCOMP]; - const GLint gMask = ctx->Color.ColorMask[GCOMP]; - const GLint bMask = ctx->Color.ColorMask[BCOMP]; - const GLint aMask = ctx->Color.ColorMask[ACOMP]; - - _swrast_read_rgba_span( ctx, rb, n, x, y, dest ); - for (i = 0; i < n; i++) { - if (!rMask) rgba[i][RCOMP] = dest[i][RCOMP]; - if (!gMask) rgba[i][GCOMP] = dest[i][GCOMP]; - if (!bMask) rgba[i][BCOMP] = dest[i][BCOMP]; - if (!aMask) rgba[i][ACOMP] = dest[i][ACOMP]; - } - -#endif -} - - - -void -_swrast_mask_ci_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLuint index[]) -{ - const GLuint srcMask = ctx->Color.IndexMask; - const GLuint dstMask = ~srcMask; - GLuint dest[MAX_WIDTH]; - GLuint i; - - ASSERT(span->arrayMask & SPAN_INDEX); - ASSERT(span->end <= MAX_WIDTH); - ASSERT(rb->DataType == GL_UNSIGNED_INT); - - if (span->arrayMask & SPAN_XY) { - _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y, - dest, sizeof(GLuint)); - } - else { - _swrast_read_index_span(ctx, rb, span->end, span->x, span->y, dest); - } - - for (i = 0; i < span->end; i++) { - index[i] = (index[i] & srcMask) | (dest[i] & dstMask); - } -} - - -/* - * Apply glIndexMask to an array of CI pixels. - */ -void -_swrast_mask_ci_array(GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLuint index[]) -{ - const GLuint srcMask = ctx->Color.IndexMask; - const GLuint dstMask = ~srcMask; - GLuint dest[MAX_WIDTH]; - GLuint i; - - _swrast_read_index_span(ctx, rb, n, x, y, dest); - - for (i=0;i<n;i++) { - index[i] = (index[i] & srcMask) | (dest[i] & dstMask); - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_masking.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_masking.h deleted file mode 100644 index e2265448f..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_masking.h +++ /dev/null @@ -1,58 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_MASKING_H -#define S_MASKING_H - - -#include "mtypes.h" -#include "swrast.h" - - -/* - * Implement glColorMask for a span of RGBA pixels. - */ -extern void -_swrast_mask_rgba_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLchan rgba[][4]); - - -extern void -_swrast_mask_rgba_array(GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLchan rgba[][4]); - - -/* - * Implement glIndexMask for a span of CI pixels. - */ -extern void -_swrast_mask_ci_span(GLcontext *ctx, struct gl_renderbuffer *rb, - const struct sw_span *span, GLuint index[]); - -extern void -_swrast_mask_ci_array(GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLuint index[]); - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_nvfragprog.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_nvfragprog.c deleted file mode 100644 index 5ee4a041a..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_nvfragprog.c +++ /dev/null @@ -1,1507 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.4 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * Regarding GL_NV_fragment_program: - * - * Portions of this software may use or implement intellectual - * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims - * any and all warranties with respect to such intellectual property, - * including any use thereof or modifications thereto. - */ - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "nvfragprog.h" -#include "macros.h" -#include "program.h" - -#include "s_nvfragprog.h" -#include "s_span.h" -#include "s_texture.h" - - -/* if 1, print some debugging info */ -#define DEBUG_FRAG 0 - -/** - * Fetch a texel. - */ -static void -fetch_texel( GLcontext *ctx, const GLfloat texcoord[4], GLfloat lambda, - GLuint unit, GLfloat color[4] ) -{ - GLchan rgba[4]; - SWcontext *swrast = SWRAST_CONTEXT(ctx); - - /* XXX use a float-valued TextureSample routine here!!! */ - swrast->TextureSample[unit](ctx, unit, ctx->Texture.Unit[unit]._Current, - 1, (const GLfloat (*)[4]) texcoord, - &lambda, &rgba); - color[0] = CHAN_TO_FLOAT(rgba[0]); - color[1] = CHAN_TO_FLOAT(rgba[1]); - color[2] = CHAN_TO_FLOAT(rgba[2]); - color[3] = CHAN_TO_FLOAT(rgba[3]); -} - - -/** - * Fetch a texel with the given partial derivatives to compute a level - * of detail in the mipmap. - */ -static void -fetch_texel_deriv( GLcontext *ctx, const GLfloat texcoord[4], - const GLfloat texdx[4], const GLfloat texdy[4], - GLuint unit, GLfloat color[4] ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current; - const struct gl_texture_image *texImg = texObj->Image[0][texObj->BaseLevel]; - const GLfloat texW = (GLfloat) texImg->WidthScale; - const GLfloat texH = (GLfloat) texImg->HeightScale; - GLchan rgba[4]; - - GLfloat lambda = _swrast_compute_lambda(texdx[0], texdy[0], /* ds/dx, ds/dy */ - texdx[1], texdy[1], /* dt/dx, dt/dy */ - texdx[3], texdy[2], /* dq/dx, dq/dy */ - texW, texH, - texcoord[0], texcoord[1], texcoord[3], - 1.0F / texcoord[3]); - - swrast->TextureSample[unit](ctx, unit, ctx->Texture.Unit[unit]._Current, - 1, (const GLfloat (*)[4]) texcoord, - &lambda, &rgba); - color[0] = CHAN_TO_FLOAT(rgba[0]); - color[1] = CHAN_TO_FLOAT(rgba[1]); - color[2] = CHAN_TO_FLOAT(rgba[2]); - color[3] = CHAN_TO_FLOAT(rgba[3]); -} - - -/** - * Return a pointer to the 4-element float vector specified by the given - * source register. - */ -static INLINE const GLfloat * -get_register_pointer( GLcontext *ctx, - const struct fp_src_register *source, - const struct fp_machine *machine, - const struct fragment_program *program ) -{ - const GLfloat *src; - switch (source->File) { - case PROGRAM_TEMPORARY: - ASSERT(source->Index < MAX_NV_FRAGMENT_PROGRAM_TEMPS); - src = machine->Temporaries[source->Index]; - break; - case PROGRAM_INPUT: - ASSERT(source->Index < MAX_NV_FRAGMENT_PROGRAM_INPUTS); - src = machine->Inputs[source->Index]; - break; - case PROGRAM_OUTPUT: - /* This is only for PRINT */ - ASSERT(source->Index < MAX_NV_FRAGMENT_PROGRAM_OUTPUTS); - src = machine->Outputs[source->Index]; - break; - case PROGRAM_LOCAL_PARAM: - ASSERT(source->Index < MAX_PROGRAM_LOCAL_PARAMS); - src = program->Base.LocalParams[source->Index]; - break; - case PROGRAM_ENV_PARAM: - ASSERT(source->Index < MAX_NV_FRAGMENT_PROGRAM_PARAMS); - src = ctx->FragmentProgram.Parameters[source->Index]; - break; - case PROGRAM_STATE_VAR: - /* Fallthrough */ - case PROGRAM_NAMED_PARAM: - ASSERT(source->Index < (GLint) program->Parameters->NumParameters); - src = program->Parameters->ParameterValues[source->Index]; - break; - default: - _mesa_problem(ctx, "Invalid input register file %d in fetch_vector4", source->File); - src = NULL; - } - return src; -} - - -/** - * Fetch a 4-element float vector from the given source register. - * Apply swizzling and negating as needed. - */ -static void -fetch_vector4( GLcontext *ctx, - const struct fp_src_register *source, - const struct fp_machine *machine, - const struct fragment_program *program, - GLfloat result[4] ) -{ - const GLfloat *src = get_register_pointer(ctx, source, machine, program); - ASSERT(src); - - result[0] = src[GET_SWZ(source->Swizzle, 0)]; - result[1] = src[GET_SWZ(source->Swizzle, 1)]; - result[2] = src[GET_SWZ(source->Swizzle, 2)]; - result[3] = src[GET_SWZ(source->Swizzle, 3)]; - - if (source->NegateBase) { - result[0] = -result[0]; - result[1] = -result[1]; - result[2] = -result[2]; - result[3] = -result[3]; - } - if (source->Abs) { - result[0] = FABSF(result[0]); - result[1] = FABSF(result[1]); - result[2] = FABSF(result[2]); - result[3] = FABSF(result[3]); - } - if (source->NegateAbs) { - result[0] = -result[0]; - result[1] = -result[1]; - result[2] = -result[2]; - result[3] = -result[3]; - } -} - - -/** - * Fetch the derivative with respect to X for the given register. - * \return GL_TRUE if it was easily computed or GL_FALSE if we - * need to execute another instance of the program (ugh)! - */ -static GLboolean -fetch_vector4_deriv( GLcontext *ctx, - const struct fp_src_register *source, - const struct sw_span *span, - char xOrY, GLint column, GLfloat result[4] ) -{ - GLfloat src[4]; - - ASSERT(xOrY == 'X' || xOrY == 'Y'); - - switch (source->Index) { - case FRAG_ATTRIB_WPOS: - if (xOrY == 'X') { - src[0] = 1.0; - src[1] = 0.0; - src[2] = span->dzdx / ctx->DrawBuffer->_DepthMaxF; - src[3] = span->dwdx; - } - else { - src[0] = 0.0; - src[1] = 1.0; - src[2] = span->dzdy / ctx->DrawBuffer->_DepthMaxF; - src[3] = span->dwdy; - } - break; - case FRAG_ATTRIB_COL0: - if (xOrY == 'X') { - src[0] = span->drdx * (1.0F / CHAN_MAXF); - src[1] = span->dgdx * (1.0F / CHAN_MAXF); - src[2] = span->dbdx * (1.0F / CHAN_MAXF); - src[3] = span->dadx * (1.0F / CHAN_MAXF); - } - else { - src[0] = span->drdy * (1.0F / CHAN_MAXF); - src[1] = span->dgdy * (1.0F / CHAN_MAXF); - src[2] = span->dbdy * (1.0F / CHAN_MAXF); - src[3] = span->dady * (1.0F / CHAN_MAXF); - } - break; - case FRAG_ATTRIB_COL1: - if (xOrY == 'X') { - src[0] = span->dsrdx * (1.0F / CHAN_MAXF); - src[1] = span->dsgdx * (1.0F / CHAN_MAXF); - src[2] = span->dsbdx * (1.0F / CHAN_MAXF); - src[3] = 0.0; /* XXX need this */ - } - else { - src[0] = span->dsrdy * (1.0F / CHAN_MAXF); - src[1] = span->dsgdy * (1.0F / CHAN_MAXF); - src[2] = span->dsbdy * (1.0F / CHAN_MAXF); - src[3] = 0.0; /* XXX need this */ - } - break; - case FRAG_ATTRIB_FOGC: - if (xOrY == 'X') { - src[0] = span->dfogdx; - src[1] = 0.0; - src[2] = 0.0; - src[3] = 0.0; - } - else { - src[0] = span->dfogdy; - src[1] = 0.0; - src[2] = 0.0; - src[3] = 0.0; - } - break; - case FRAG_ATTRIB_TEX0: - case FRAG_ATTRIB_TEX1: - case FRAG_ATTRIB_TEX2: - case FRAG_ATTRIB_TEX3: - case FRAG_ATTRIB_TEX4: - case FRAG_ATTRIB_TEX5: - case FRAG_ATTRIB_TEX6: - case FRAG_ATTRIB_TEX7: - if (xOrY == 'X') { - const GLuint u = source->Index - FRAG_ATTRIB_TEX0; - /* this is a little tricky - I think I've got it right */ - const GLfloat invQ = 1.0f / (span->tex[u][3] - + span->texStepX[u][3] * column); - src[0] = span->texStepX[u][0] * invQ; - src[1] = span->texStepX[u][1] * invQ; - src[2] = span->texStepX[u][2] * invQ; - src[3] = span->texStepX[u][3] * invQ; - } - else { - const GLuint u = source->Index - FRAG_ATTRIB_TEX0; - /* Tricky, as above, but in Y direction */ - const GLfloat invQ = 1.0f / (span->tex[u][3] + span->texStepY[u][3]); - src[0] = span->texStepY[u][0] * invQ; - src[1] = span->texStepY[u][1] * invQ; - src[2] = span->texStepY[u][2] * invQ; - src[3] = span->texStepY[u][3] * invQ; - } - break; - default: - return GL_FALSE; - } - - result[0] = src[GET_SWZ(source->Swizzle, 0)]; - result[1] = src[GET_SWZ(source->Swizzle, 1)]; - result[2] = src[GET_SWZ(source->Swizzle, 2)]; - result[3] = src[GET_SWZ(source->Swizzle, 3)]; - - if (source->NegateBase) { - result[0] = -result[0]; - result[1] = -result[1]; - result[2] = -result[2]; - result[3] = -result[3]; - } - if (source->Abs) { - result[0] = FABSF(result[0]); - result[1] = FABSF(result[1]); - result[2] = FABSF(result[2]); - result[3] = FABSF(result[3]); - } - if (source->NegateAbs) { - result[0] = -result[0]; - result[1] = -result[1]; - result[2] = -result[2]; - result[3] = -result[3]; - } - return GL_TRUE; -} - - -/** - * As above, but only return result[0] element. - */ -static void -fetch_vector1( GLcontext *ctx, - const struct fp_src_register *source, - const struct fp_machine *machine, - const struct fragment_program *program, - GLfloat result[4] ) -{ - const GLfloat *src = get_register_pointer(ctx, source, machine, program); - ASSERT(src); - - result[0] = src[GET_SWZ(source->Swizzle, 0)]; - - if (source->NegateBase) { - result[0] = -result[0]; - } - if (source->Abs) { - result[0] = FABSF(result[0]); - } - if (source->NegateAbs) { - result[0] = -result[0]; - } -} - - -/** - * Test value against zero and return GT, LT, EQ or UN if NaN. - */ -static INLINE GLuint -generate_cc( float value ) -{ - if (value != value) - return COND_UN; /* NaN */ - if (value > 0.0F) - return COND_GT; - if (value < 0.0F) - return COND_LT; - return COND_EQ; -} - - -/** - * Test if the ccMaskRule is satisfied by the given condition code. - * Used to mask destination writes according to the current condition codee. - */ -static INLINE GLboolean -test_cc(GLuint condCode, GLuint ccMaskRule) -{ - switch (ccMaskRule) { - case COND_EQ: return (condCode == COND_EQ); - case COND_NE: return (condCode != COND_EQ); - case COND_LT: return (condCode == COND_LT); - case COND_GE: return (condCode == COND_GT || condCode == COND_EQ); - case COND_LE: return (condCode == COND_LT || condCode == COND_EQ); - case COND_GT: return (condCode == COND_GT); - case COND_TR: return GL_TRUE; - case COND_FL: return GL_FALSE; - default: return GL_TRUE; - } -} - - -/** - * Store 4 floats into a register. Observe the instructions saturate and - * set-condition-code flags. - */ -static void -store_vector4( const struct fp_instruction *inst, - struct fp_machine *machine, - const GLfloat value[4] ) -{ - const struct fp_dst_register *dest = &(inst->DstReg); - const GLboolean clamp = inst->Saturate; - const GLboolean updateCC = inst->UpdateCondRegister; - GLfloat *dstReg; - GLfloat dummyReg[4]; - GLfloat clampedValue[4]; - GLboolean condWriteMask[4]; - GLuint writeMask = dest->WriteMask; - - switch (dest->File) { - case PROGRAM_OUTPUT: - dstReg = machine->Outputs[dest->Index]; - break; - case PROGRAM_TEMPORARY: - dstReg = machine->Temporaries[dest->Index]; - break; - case PROGRAM_WRITE_ONLY: - dstReg = dummyReg; - return; - default: - _mesa_problem(NULL, "bad register file in store_vector4(fp)"); - return; - } - -#if DEBUG_FRAG - if (value[0] > 1.0e10 || - IS_INF_OR_NAN(value[0]) || - IS_INF_OR_NAN(value[1]) || - IS_INF_OR_NAN(value[2]) || - IS_INF_OR_NAN(value[3]) ) - printf("store %g %g %g %g\n", value[0], value[1], value[2], value[3]); -#endif - - if (clamp) { - clampedValue[0] = CLAMP(value[0], 0.0F, 1.0F); - clampedValue[1] = CLAMP(value[1], 0.0F, 1.0F); - clampedValue[2] = CLAMP(value[2], 0.0F, 1.0F); - clampedValue[3] = CLAMP(value[3], 0.0F, 1.0F); - value = clampedValue; - } - - if (dest->CondMask != COND_TR) { - condWriteMask[0] = GET_BIT(writeMask, 0) - && test_cc(machine->CondCodes[GET_SWZ(dest->CondSwizzle, 0)], dest->CondMask); - condWriteMask[1] = GET_BIT(writeMask, 1) - && test_cc(machine->CondCodes[GET_SWZ(dest->CondSwizzle, 1)], dest->CondMask); - condWriteMask[2] = GET_BIT(writeMask, 2) - && test_cc(machine->CondCodes[GET_SWZ(dest->CondSwizzle, 2)], dest->CondMask); - condWriteMask[3] = GET_BIT(writeMask, 3) - && test_cc(machine->CondCodes[GET_SWZ(dest->CondSwizzle, 3)], dest->CondMask); - - writeMask = ((condWriteMask[0] << 0) | - (condWriteMask[1] << 1) | - (condWriteMask[2] << 2) | - (condWriteMask[3] << 3)); - } - - if (GET_BIT(writeMask, 0)) { - dstReg[0] = value[0]; - if (updateCC) - machine->CondCodes[0] = generate_cc(value[0]); - } - if (GET_BIT(writeMask, 1)) { - dstReg[1] = value[1]; - if (updateCC) - machine->CondCodes[1] = generate_cc(value[1]); - } - if (GET_BIT(writeMask, 2)) { - dstReg[2] = value[2]; - if (updateCC) - machine->CondCodes[2] = generate_cc(value[2]); - } - if (GET_BIT(writeMask, 3)) { - dstReg[3] = value[3]; - if (updateCC) - machine->CondCodes[3] = generate_cc(value[3]); - } -} - - -/** - * Initialize a new machine state instance from an existing one, adding - * the partial derivatives onto the input registers. - * Used to implement DDX and DDY instructions in non-trivial cases. - */ -static void -init_machine_deriv( GLcontext *ctx, - const struct fp_machine *machine, - const struct fragment_program *program, - const struct sw_span *span, char xOrY, - struct fp_machine *dMachine ) -{ - GLuint u; - - ASSERT(xOrY == 'X' || xOrY == 'Y'); - - /* copy existing machine */ - _mesa_memcpy(dMachine, machine, sizeof(struct fp_machine)); - - if (program->Base.Target == GL_FRAGMENT_PROGRAM_NV) { - /* Clear temporary registers (undefined for ARB_f_p) */ - _mesa_bzero( (void*) machine->Temporaries, - MAX_NV_FRAGMENT_PROGRAM_TEMPS * 4 * sizeof(GLfloat)); - } - - /* Add derivatives */ - if (program->InputsRead & (1 << FRAG_ATTRIB_WPOS)) { - GLfloat *wpos = (GLfloat*) machine->Inputs[FRAG_ATTRIB_WPOS]; - if (xOrY == 'X') { - wpos[0] += 1.0F; - wpos[1] += 0.0F; - wpos[2] += span->dzdx; - wpos[3] += span->dwdx; - } - else { - wpos[0] += 0.0F; - wpos[1] += 1.0F; - wpos[2] += span->dzdy; - wpos[3] += span->dwdy; - } - } - if (program->InputsRead & (1 << FRAG_ATTRIB_COL0)) { - GLfloat *col0 = (GLfloat*) machine->Inputs[FRAG_ATTRIB_COL0]; - if (xOrY == 'X') { - col0[0] += span->drdx * (1.0F / CHAN_MAXF); - col0[1] += span->dgdx * (1.0F / CHAN_MAXF); - col0[2] += span->dbdx * (1.0F / CHAN_MAXF); - col0[3] += span->dadx * (1.0F / CHAN_MAXF); - } - else { - col0[0] += span->drdy * (1.0F / CHAN_MAXF); - col0[1] += span->dgdy * (1.0F / CHAN_MAXF); - col0[2] += span->dbdy * (1.0F / CHAN_MAXF); - col0[3] += span->dady * (1.0F / CHAN_MAXF); - } - } - if (program->InputsRead & (1 << FRAG_ATTRIB_COL1)) { - GLfloat *col1 = (GLfloat*) machine->Inputs[FRAG_ATTRIB_COL1]; - if (xOrY == 'X') { - col1[0] += span->dsrdx * (1.0F / CHAN_MAXF); - col1[1] += span->dsgdx * (1.0F / CHAN_MAXF); - col1[2] += span->dsbdx * (1.0F / CHAN_MAXF); - col1[3] += 0.0; /*XXX fix */ - } - else { - col1[0] += span->dsrdy * (1.0F / CHAN_MAXF); - col1[1] += span->dsgdy * (1.0F / CHAN_MAXF); - col1[2] += span->dsbdy * (1.0F / CHAN_MAXF); - col1[3] += 0.0; /*XXX fix */ - } - } - if (program->InputsRead & (1 << FRAG_ATTRIB_FOGC)) { - GLfloat *fogc = (GLfloat*) machine->Inputs[FRAG_ATTRIB_FOGC]; - if (xOrY == 'X') { - fogc[0] += span->dfogdx; - } - else { - fogc[0] += span->dfogdy; - } - } - for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) { - if (program->InputsRead & (1 << (FRAG_ATTRIB_TEX0 + u))) { - GLfloat *tex = (GLfloat*) machine->Inputs[FRAG_ATTRIB_TEX0 + u]; - /* XXX perspective-correct interpolation */ - if (xOrY == 'X') { - tex[0] += span->texStepX[u][0]; - tex[1] += span->texStepX[u][1]; - tex[2] += span->texStepX[u][2]; - tex[3] += span->texStepX[u][3]; - } - else { - tex[0] += span->texStepY[u][0]; - tex[1] += span->texStepY[u][1]; - tex[2] += span->texStepY[u][2]; - tex[3] += span->texStepY[u][3]; - } - } - } - - /* init condition codes */ - dMachine->CondCodes[0] = COND_EQ; - dMachine->CondCodes[1] = COND_EQ; - dMachine->CondCodes[2] = COND_EQ; - dMachine->CondCodes[3] = COND_EQ; -} - - -/** - * Execute the given vertex program. - * NOTE: we do everything in single-precision floating point; we don't - * currently observe the single/half/fixed-precision qualifiers. - * \param ctx - rendering context - * \param program - the fragment program to execute - * \param machine - machine state (register file) - * \param maxInst - max number of instructions to execute - * \return GL_TRUE if program completed or GL_FALSE if program executed KIL. - */ -static GLboolean -execute_program( GLcontext *ctx, - const struct fragment_program *program, GLuint maxInst, - struct fp_machine *machine, const struct sw_span *span, - GLuint column ) -{ - GLuint pc; - -#if DEBUG_FRAG - printf("execute fragment program --------------------\n"); -#endif - - for (pc = 0; pc < maxInst; pc++) { - const struct fp_instruction *inst = program->Instructions + pc; - - if (ctx->FragmentProgram.CallbackEnabled && - ctx->FragmentProgram.Callback) { - ctx->FragmentProgram.CurrentPosition = inst->StringPos; - ctx->FragmentProgram.Callback(program->Base.Target, - ctx->FragmentProgram.CallbackData); - } - - switch (inst->Opcode) { - case FP_OPCODE_ABS: - { - GLfloat a[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = FABSF(a[0]); - result[1] = FABSF(a[1]); - result[2] = FABSF(a[2]); - result[3] = FABSF(a[3]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_ADD: - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = a[0] + b[0]; - result[1] = a[1] + b[1]; - result[2] = a[2] + b[2]; - result[3] = a[3] + b[3]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_CMP: - { - GLfloat a[4], b[4], c[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - fetch_vector4( ctx, &inst->SrcReg[2], machine, program, c ); - result[0] = a[0] < 0.0F ? b[0] : c[0]; - result[1] = a[1] < 0.0F ? b[1] : c[1]; - result[2] = a[2] < 0.0F ? b[2] : c[2]; - result[3] = a[3] < 0.0F ? b[3] : c[3]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_COS: - { - GLfloat a[4], result[4]; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = result[1] = result[2] = result[3] = (GLfloat)_mesa_cos(a[0]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_DDX: /* Partial derivative with respect to X */ - { - GLfloat a[4], aNext[4], result[4]; - struct fp_machine dMachine; - if (!fetch_vector4_deriv(ctx, &inst->SrcReg[0], span, 'X', - column, result)) { - /* This is tricky. Make a copy of the current machine state, - * increment the input registers by the dx or dy partial - * derivatives, then re-execute the program up to the - * preceeding instruction, then fetch the source register. - * Finally, find the difference in the register values for - * the original and derivative runs. - */ - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a); - init_machine_deriv(ctx, machine, program, span, - 'X', &dMachine); - execute_program(ctx, program, pc, &dMachine, span, column); - fetch_vector4( ctx, &inst->SrcReg[0], &dMachine, program, aNext ); - result[0] = aNext[0] - a[0]; - result[1] = aNext[1] - a[1]; - result[2] = aNext[2] - a[2]; - result[3] = aNext[3] - a[3]; - } - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_DDY: /* Partial derivative with respect to Y */ - { - GLfloat a[4], aNext[4], result[4]; - struct fp_machine dMachine; - if (!fetch_vector4_deriv(ctx, &inst->SrcReg[0], span, 'Y', - column, result)) { - init_machine_deriv(ctx, machine, program, span, - 'Y', &dMachine); - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a); - execute_program(ctx, program, pc, &dMachine, span, column); - fetch_vector4( ctx, &inst->SrcReg[0], &dMachine, program, aNext ); - result[0] = aNext[0] - a[0]; - result[1] = aNext[1] - a[1]; - result[2] = aNext[2] - a[2]; - result[3] = aNext[3] - a[3]; - } - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_DP3: - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = result[1] = result[2] = result[3] = - a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; - store_vector4( inst, machine, result ); -#if DEBUG_FRAG - printf("DP3 %g = (%g %g %g) . (%g %g %g)\n", - result[0], a[0], a[1], a[2], b[0], b[1], b[2]); -#endif - } - break; - case FP_OPCODE_DP4: - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = result[1] = result[2] = result[3] = - a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; - store_vector4( inst, machine, result ); -#if DEBUG_FRAG - printf("DP4 %g = (%g, %g %g %g) . (%g, %g %g %g)\n", - result[0], a[0], a[1], a[2], a[3], b[0], b[1], b[2], b[3]); -#endif - } - break; - case FP_OPCODE_DPH: - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = result[1] = result[2] = result[3] = - a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + b[3]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_DST: /* Distance vector */ - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = 1.0F; - result[1] = a[1] * b[1]; - result[2] = a[2]; - result[3] = b[3]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_EX2: /* Exponential base 2 */ - { - GLfloat a[4], result[4]; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = result[1] = result[2] = result[3] = - (GLfloat) _mesa_pow(2.0, a[0]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_FLR: - { - GLfloat a[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = FLOORF(a[0]); - result[1] = FLOORF(a[1]); - result[2] = FLOORF(a[2]); - result[3] = FLOORF(a[3]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_FRC: - { - GLfloat a[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = a[0] - FLOORF(a[0]); - result[1] = a[1] - FLOORF(a[1]); - result[2] = a[2] - FLOORF(a[2]); - result[3] = a[3] - FLOORF(a[3]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_KIL_NV: /* NV_f_p only */ - { - const GLuint swizzle = inst->DstReg.CondSwizzle; - const GLuint condMask = inst->DstReg.CondMask; - if (test_cc(machine->CondCodes[GET_SWZ(swizzle, 0)], condMask) || - test_cc(machine->CondCodes[GET_SWZ(swizzle, 1)], condMask) || - test_cc(machine->CondCodes[GET_SWZ(swizzle, 2)], condMask) || - test_cc(machine->CondCodes[GET_SWZ(swizzle, 3)], condMask)) { - return GL_FALSE; - } - } - break; - case FP_OPCODE_KIL: /* ARB_f_p only */ - { - GLfloat a[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - if (a[0] < 0.0F || a[1] < 0.0F || a[2] < 0.0F || a[3] < 0.0F) { - return GL_FALSE; - } - } - break; - case FP_OPCODE_LG2: /* log base 2 */ - { - GLfloat a[4], result[4]; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = result[1] = result[2] = result[3] - = LOG2(a[0]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_LIT: - { - const GLfloat epsilon = 1.0F / 256.0F; /* from NV VP spec */ - GLfloat a[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - a[0] = MAX2(a[0], 0.0F); - a[1] = MAX2(a[1], 0.0F); - /* XXX ARB version clamps a[3], NV version doesn't */ - a[3] = CLAMP(a[3], -(128.0F - epsilon), (128.0F - epsilon)); - result[0] = 1.0F; - result[1] = a[0]; - /* XXX we could probably just use pow() here */ - if (a[0] > 0.0F) { - if (a[1] == 0.0 && a[3] == 0.0) - result[2] = 1.0; - else - result[2] = EXPF(a[3] * LOGF(a[1])); - } - else { - result[2] = 0.0; - } - result[3] = 1.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_LRP: - { - GLfloat a[4], b[4], c[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - fetch_vector4( ctx, &inst->SrcReg[2], machine, program, c ); - result[0] = a[0] * b[0] + (1.0F - a[0]) * c[0]; - result[1] = a[1] * b[1] + (1.0F - a[1]) * c[1]; - result[2] = a[2] * b[2] + (1.0F - a[2]) * c[2]; - result[3] = a[3] * b[3] + (1.0F - a[3]) * c[3]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_MAD: - { - GLfloat a[4], b[4], c[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - fetch_vector4( ctx, &inst->SrcReg[2], machine, program, c ); - result[0] = a[0] * b[0] + c[0]; - result[1] = a[1] * b[1] + c[1]; - result[2] = a[2] * b[2] + c[2]; - result[3] = a[3] * b[3] + c[3]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_MAX: - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = MAX2(a[0], b[0]); - result[1] = MAX2(a[1], b[1]); - result[2] = MAX2(a[2], b[2]); - result[3] = MAX2(a[3], b[3]); - store_vector4( inst, machine, result ); -#if DEBUG_FRAG - printf("MAX (%g %g %g %g) = (%g %g %g %g), (%g %g %g %g)\n", - result[0], result[1], result[2], result[3], - a[0], a[1], a[2], a[3], - b[0], b[1], b[2], b[3]); -#endif - } - break; - case FP_OPCODE_MIN: - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = MIN2(a[0], b[0]); - result[1] = MIN2(a[1], b[1]); - result[2] = MIN2(a[2], b[2]); - result[3] = MIN2(a[3], b[3]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_MOV: - { - GLfloat result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, result ); - store_vector4( inst, machine, result ); -#if DEBUG_FRAG - printf("MOV (%g %g %g %g)\n", - result[0], result[1], result[2], result[3]); -#endif - } - break; - case FP_OPCODE_MUL: - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = a[0] * b[0]; - result[1] = a[1] * b[1]; - result[2] = a[2] * b[2]; - result[3] = a[3] * b[3]; - store_vector4( inst, machine, result ); -#if DEBUG_FRAG - printf("MUL (%g %g %g %g) = (%g %g %g %g) * (%g %g %g %g)\n", - result[0], result[1], result[2], result[3], - a[0], a[1], a[2], a[3], - b[0], b[1], b[2], b[3]); -#endif - } - break; - case FP_OPCODE_PK2H: /* pack two 16-bit floats in one 32-bit float */ - { - GLfloat a[4], result[4]; - GLhalfNV hx, hy; - GLuint *rawResult = (GLuint *) result; - GLuint twoHalves; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - hx = _mesa_float_to_half(a[0]); - hy = _mesa_float_to_half(a[1]); - twoHalves = hx | (hy << 16); - rawResult[0] = rawResult[1] = rawResult[2] = rawResult[3] - = twoHalves; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_PK2US: /* pack two GLushorts into one 32-bit float */ - { - GLfloat a[4], result[4]; - GLuint usx, usy, *rawResult = (GLuint *) result; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - a[0] = CLAMP(a[0], 0.0F, 1.0F); - a[1] = CLAMP(a[1], 0.0F, 1.0F); - usx = IROUND(a[0] * 65535.0F); - usy = IROUND(a[1] * 65535.0F); - rawResult[0] = rawResult[1] = rawResult[2] = rawResult[3] - = usx | (usy << 16); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_PK4B: /* pack four GLbytes into one 32-bit float */ - { - GLfloat a[4], result[4]; - GLuint ubx, uby, ubz, ubw, *rawResult = (GLuint *) result; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - a[0] = CLAMP(a[0], -128.0F / 127.0F, 1.0F); - a[1] = CLAMP(a[1], -128.0F / 127.0F, 1.0F); - a[2] = CLAMP(a[2], -128.0F / 127.0F, 1.0F); - a[3] = CLAMP(a[3], -128.0F / 127.0F, 1.0F); - ubx = IROUND(127.0F * a[0] + 128.0F); - uby = IROUND(127.0F * a[1] + 128.0F); - ubz = IROUND(127.0F * a[2] + 128.0F); - ubw = IROUND(127.0F * a[3] + 128.0F); - rawResult[0] = rawResult[1] = rawResult[2] = rawResult[3] - = ubx | (uby << 8) | (ubz << 16) | (ubw << 24); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_PK4UB: /* pack four GLubytes into one 32-bit float */ - { - GLfloat a[4], result[4]; - GLuint ubx, uby, ubz, ubw, *rawResult = (GLuint *) result; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - a[0] = CLAMP(a[0], 0.0F, 1.0F); - a[1] = CLAMP(a[1], 0.0F, 1.0F); - a[2] = CLAMP(a[2], 0.0F, 1.0F); - a[3] = CLAMP(a[3], 0.0F, 1.0F); - ubx = IROUND(255.0F * a[0]); - uby = IROUND(255.0F * a[1]); - ubz = IROUND(255.0F * a[2]); - ubw = IROUND(255.0F * a[3]); - rawResult[0] = rawResult[1] = rawResult[2] = rawResult[3] - = ubx | (uby << 8) | (ubz << 16) | (ubw << 24); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_POW: - { - GLfloat a[4], b[4], result[4]; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector1( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = result[1] = result[2] = result[3] - = (GLfloat)_mesa_pow(a[0], b[0]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_RCP: - { - GLfloat a[4], result[4]; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); -#if DEBUG_FRAG - if (a[0] == 0) - printf("RCP(0)\n"); - else if (IS_INF_OR_NAN(a[0])) - printf("RCP(inf)\n"); -#endif - result[0] = result[1] = result[2] = result[3] - = 1.0F / a[0]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_RFL: - { - GLfloat axis[4], dir[4], result[4], tmp[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, axis ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, dir ); - tmp[3] = axis[0] * axis[0] - + axis[1] * axis[1] - + axis[2] * axis[2]; - tmp[0] = (2.0F * (axis[0] * dir[0] + - axis[1] * dir[1] + - axis[2] * dir[2])) / tmp[3]; - result[0] = tmp[0] * axis[0] - dir[0]; - result[1] = tmp[0] * axis[1] - dir[1]; - result[2] = tmp[0] * axis[2] - dir[2]; - /* result[3] is never written! XXX enforce in parser! */ - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_RSQ: /* 1 / sqrt() */ - { - GLfloat a[4], result[4]; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - a[0] = FABSF(a[0]); - result[0] = result[1] = result[2] = result[3] = INV_SQRTF(a[0]); - store_vector4( inst, machine, result ); -#if DEBUG_FRAG - printf("RSQ %g = 1/sqrt(|%g|)\n", result[0], a[0]); -#endif - } - break; - case FP_OPCODE_SCS: /* sine and cos */ - { - GLfloat a[4], result[4]; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = (GLfloat)cos(a[0]); - result[1] = (GLfloat)sin(a[0]); - result[2] = 0.0; /* undefined! */ - result[3] = 0.0; /* undefined! */ - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SEQ: /* set on equal */ - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = (a[0] == b[0]) ? 1.0F : 0.0F; - result[1] = (a[1] == b[1]) ? 1.0F : 0.0F; - result[2] = (a[2] == b[2]) ? 1.0F : 0.0F; - result[3] = (a[3] == b[3]) ? 1.0F : 0.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SFL: /* set false, operands ignored */ - { - static const GLfloat result[4] = { 0.0F, 0.0F, 0.0F, 0.0F }; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SGE: /* set on greater or equal */ - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = (a[0] >= b[0]) ? 1.0F : 0.0F; - result[1] = (a[1] >= b[1]) ? 1.0F : 0.0F; - result[2] = (a[2] >= b[2]) ? 1.0F : 0.0F; - result[3] = (a[3] >= b[3]) ? 1.0F : 0.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SGT: /* set on greater */ - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = (a[0] > b[0]) ? 1.0F : 0.0F; - result[1] = (a[1] > b[1]) ? 1.0F : 0.0F; - result[2] = (a[2] > b[2]) ? 1.0F : 0.0F; - result[3] = (a[3] > b[3]) ? 1.0F : 0.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SIN: - { - GLfloat a[4], result[4]; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = result[1] = result[2] = - result[3] = (GLfloat)_mesa_sin(a[0]); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SLE: /* set on less or equal */ - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = (a[0] <= b[0]) ? 1.0F : 0.0F; - result[1] = (a[1] <= b[1]) ? 1.0F : 0.0F; - result[2] = (a[2] <= b[2]) ? 1.0F : 0.0F; - result[3] = (a[3] <= b[3]) ? 1.0F : 0.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SLT: /* set on less */ - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = (a[0] < b[0]) ? 1.0F : 0.0F; - result[1] = (a[1] < b[1]) ? 1.0F : 0.0F; - result[2] = (a[2] < b[2]) ? 1.0F : 0.0F; - result[3] = (a[3] < b[3]) ? 1.0F : 0.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SNE: /* set on not equal */ - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = (a[0] != b[0]) ? 1.0F : 0.0F; - result[1] = (a[1] != b[1]) ? 1.0F : 0.0F; - result[2] = (a[2] != b[2]) ? 1.0F : 0.0F; - result[3] = (a[3] != b[3]) ? 1.0F : 0.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_STR: /* set true, operands ignored */ - { - static const GLfloat result[4] = { 1.0F, 1.0F, 1.0F, 1.0F }; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SUB: - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = a[0] - b[0]; - result[1] = a[1] - b[1]; - result[2] = a[2] - b[2]; - result[3] = a[3] - b[3]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_SWZ: - { - const struct fp_src_register *source = &inst->SrcReg[0]; - const GLfloat *src = get_register_pointer(ctx, source, - machine, program); - GLfloat result[4]; - GLuint i; - - /* do extended swizzling here */ - for (i = 0; i < 4; i++) { - if (GET_SWZ(source->Swizzle, i) == SWIZZLE_ZERO) - result[i] = 0.0; - else if (GET_SWZ(source->Swizzle, i) == SWIZZLE_ONE) - result[i] = 1.0; - else - result[i] = src[GET_SWZ(source->Swizzle, i)]; - - if (source->NegateBase & (1 << i)) - result[i] = -result[i]; - } - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_TEX: /* Both ARB and NV frag prog */ - /* Texel lookup */ - { - GLfloat texcoord[4], color[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, texcoord ); - /* Note: we pass 0 for LOD. The ARB extension requires it - * while the NV extension says it's implementation dependant. - */ - /* KW: Previously lambda was passed as zero, but I - * believe this is incorrect, the spec seems to - * indicate rather that lambda should not be - * changed/biased, unlike TXB where texcoord[3] is - * added to the lambda calculations. The lambda should - * still be calculated normally for TEX & TXP though, - * not set to zero. Otherwise it's very difficult to - * implement normal GL semantics through the fragment - * shader. - */ - fetch_texel( ctx, texcoord, - span->array->lambda[inst->TexSrcUnit][column], - inst->TexSrcUnit, color ); - store_vector4( inst, machine, color ); - } - break; - case FP_OPCODE_TXB: /* GL_ARB_fragment_program only */ - /* Texel lookup with LOD bias */ - { - GLfloat texcoord[4], color[4], bias, lambda; - - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, texcoord ); - /* texcoord[3] is the bias to add to lambda */ - bias = ctx->Texture.Unit[inst->TexSrcUnit].LodBias - + ctx->Texture.Unit[inst->TexSrcUnit]._Current->LodBias - + texcoord[3]; - lambda = span->array->lambda[inst->TexSrcUnit][column] + bias; - fetch_texel( ctx, texcoord, lambda, - inst->TexSrcUnit, color ); - store_vector4( inst, machine, color ); - } - break; - case FP_OPCODE_TXD: /* GL_NV_fragment_program only */ - /* Texture lookup w/ partial derivatives for LOD */ - { - GLfloat texcoord[4], dtdx[4], dtdy[4], color[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, texcoord ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, dtdx ); - fetch_vector4( ctx, &inst->SrcReg[2], machine, program, dtdy ); - fetch_texel_deriv( ctx, texcoord, dtdx, dtdy, inst->TexSrcUnit, - color ); - store_vector4( inst, machine, color ); - } - break; - case FP_OPCODE_TXP: /* GL_ARB_fragment_program only */ - /* Texture lookup w/ projective divide */ - { - GLfloat texcoord[4], color[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, texcoord ); - /* Not so sure about this test - if texcoord[3] is - * zero, we'd probably be fine except for an ASSERT in - * IROUND_POS() which gets triggered by the inf values created. - */ - if (texcoord[3] != 0.0) { - texcoord[0] /= texcoord[3]; - texcoord[1] /= texcoord[3]; - texcoord[2] /= texcoord[3]; - } - /* KW: Previously lambda was passed as zero, but I - * believe this is incorrect, the spec seems to - * indicate rather that lambda should not be - * changed/biased, unlike TXB where texcoord[3] is - * added to the lambda calculations. The lambda should - * still be calculated normally for TEX & TXP though, - * not set to zero. - */ - fetch_texel( ctx, texcoord, - span->array->lambda[inst->TexSrcUnit][column], - inst->TexSrcUnit, color ); - store_vector4( inst, machine, color ); - } - break; - case FP_OPCODE_TXP_NV: /* GL_NV_fragment_program only */ - /* Texture lookup w/ projective divide */ - { - GLfloat texcoord[4], color[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, texcoord ); - if (inst->TexSrcIdx != TEXTURE_CUBE_INDEX && - texcoord[3] != 0.0) { - texcoord[0] /= texcoord[3]; - texcoord[1] /= texcoord[3]; - texcoord[2] /= texcoord[3]; - } - fetch_texel( ctx, texcoord, - span->array->lambda[inst->TexSrcUnit][column], - inst->TexSrcUnit, color ); - store_vector4( inst, machine, color ); - } - break; - case FP_OPCODE_UP2H: /* unpack two 16-bit floats */ - { - GLfloat a[4], result[4]; - const GLuint *rawBits = (const GLuint *) a; - GLhalfNV hx, hy; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - hx = rawBits[0] & 0xffff; - hy = rawBits[0] >> 16; - result[0] = result[2] = _mesa_half_to_float(hx); - result[1] = result[3] = _mesa_half_to_float(hy); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_UP2US: /* unpack two GLushorts */ - { - GLfloat a[4], result[4]; - const GLuint *rawBits = (const GLuint *) a; - GLushort usx, usy; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - usx = rawBits[0] & 0xffff; - usy = rawBits[0] >> 16; - result[0] = result[2] = usx * (1.0f / 65535.0f); - result[1] = result[3] = usy * (1.0f / 65535.0f); - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_UP4B: /* unpack four GLbytes */ - { - GLfloat a[4], result[4]; - const GLuint *rawBits = (const GLuint *) a; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = (((rawBits[0] >> 0) & 0xff) - 128) / 127.0F; - result[1] = (((rawBits[0] >> 8) & 0xff) - 128) / 127.0F; - result[2] = (((rawBits[0] >> 16) & 0xff) - 128) / 127.0F; - result[3] = (((rawBits[0] >> 24) & 0xff) - 128) / 127.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_UP4UB: /* unpack four GLubytes */ - { - GLfloat a[4], result[4]; - const GLuint *rawBits = (const GLuint *) a; - fetch_vector1( ctx, &inst->SrcReg[0], machine, program, a ); - result[0] = ((rawBits[0] >> 0) & 0xff) / 255.0F; - result[1] = ((rawBits[0] >> 8) & 0xff) / 255.0F; - result[2] = ((rawBits[0] >> 16) & 0xff) / 255.0F; - result[3] = ((rawBits[0] >> 24) & 0xff) / 255.0F; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_XPD: /* cross product */ - { - GLfloat a[4], b[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - result[0] = a[1] * b[2] - a[2] * b[1]; - result[1] = a[2] * b[0] - a[0] * b[2]; - result[2] = a[0] * b[1] - a[1] * b[0]; - result[3] = 1.0; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_X2D: /* 2-D matrix transform */ - { - GLfloat a[4], b[4], c[4], result[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a ); - fetch_vector4( ctx, &inst->SrcReg[1], machine, program, b ); - fetch_vector4( ctx, &inst->SrcReg[2], machine, program, c ); - result[0] = a[0] + b[0] * c[0] + b[1] * c[1]; - result[1] = a[1] + b[0] * c[2] + b[1] * c[3]; - result[2] = a[2] + b[0] * c[0] + b[1] * c[1]; - result[3] = a[3] + b[0] * c[2] + b[1] * c[3]; - store_vector4( inst, machine, result ); - } - break; - case FP_OPCODE_PRINT: - { - if (inst->SrcReg[0].File != -1) { - GLfloat a[4]; - fetch_vector4( ctx, &inst->SrcReg[0], machine, program, a); - _mesa_printf("%s%g, %g, %g, %g\n", (const char *) inst->Data, - a[0], a[1], a[2], a[3]); - } - else { - _mesa_printf("%s\n", (const char *) inst->Data); - } - } - break; - case FP_OPCODE_END: - return GL_TRUE; - default: - _mesa_problem(ctx, "Bad opcode %d in _mesa_exec_fragment_program", - inst->Opcode); - return GL_TRUE; /* return value doesn't matter */ - } - } - return GL_TRUE; -} - - -static void -init_machine( GLcontext *ctx, struct fp_machine *machine, - const struct fragment_program *program, - const struct sw_span *span, GLuint col ) -{ - GLuint inputsRead = program->InputsRead; - GLuint u; - - if (ctx->FragmentProgram.CallbackEnabled) - inputsRead = ~0; - - if (program->Base.Target == GL_FRAGMENT_PROGRAM_NV) { - /* Clear temporary registers (undefined for ARB_f_p) */ - _mesa_bzero(machine->Temporaries, - MAX_NV_FRAGMENT_PROGRAM_TEMPS * 4 * sizeof(GLfloat)); - } - - /* Load input registers */ - if (inputsRead & (1 << FRAG_ATTRIB_WPOS)) { - GLfloat *wpos = machine->Inputs[FRAG_ATTRIB_WPOS]; - ASSERT(span->arrayMask & SPAN_Z); - wpos[0] = (GLfloat) span->x + col; - wpos[1] = (GLfloat) span->y; - wpos[2] = (GLfloat) span->array->z[col] / ctx->DrawBuffer->_DepthMaxF; - wpos[3] = span->w + col * span->dwdx; - } - if (inputsRead & (1 << FRAG_ATTRIB_COL0)) { - GLfloat *col0 = machine->Inputs[FRAG_ATTRIB_COL0]; - ASSERT(span->arrayMask & SPAN_RGBA); - col0[0] = CHAN_TO_FLOAT(span->array->rgba[col][RCOMP]); - col0[1] = CHAN_TO_FLOAT(span->array->rgba[col][GCOMP]); - col0[2] = CHAN_TO_FLOAT(span->array->rgba[col][BCOMP]); - col0[3] = CHAN_TO_FLOAT(span->array->rgba[col][ACOMP]); - } - if (inputsRead & (1 << FRAG_ATTRIB_COL1)) { - GLfloat *col1 = machine->Inputs[FRAG_ATTRIB_COL1]; - col1[0] = CHAN_TO_FLOAT(span->array->spec[col][RCOMP]); - col1[1] = CHAN_TO_FLOAT(span->array->spec[col][GCOMP]); - col1[2] = CHAN_TO_FLOAT(span->array->spec[col][BCOMP]); - col1[3] = CHAN_TO_FLOAT(span->array->spec[col][ACOMP]); - } - if (inputsRead & (1 << FRAG_ATTRIB_FOGC)) { - GLfloat *fogc = machine->Inputs[FRAG_ATTRIB_FOGC]; - ASSERT(span->arrayMask & SPAN_FOG); - fogc[0] = span->array->fog[col]; - fogc[1] = 0.0F; - fogc[2] = 0.0F; - fogc[3] = 0.0F; - } - for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) { - if (inputsRead & (1 << (FRAG_ATTRIB_TEX0 + u))) { - GLfloat *tex = machine->Inputs[FRAG_ATTRIB_TEX0 + u]; - /*ASSERT(ctx->Texture._EnabledCoordUnits & (1 << u));*/ - COPY_4V(tex, span->array->texcoords[u][col]); - /*ASSERT(tex[0] != 0 || tex[1] != 0 || tex[2] != 0);*/ - } - } - - /* init condition codes */ - machine->CondCodes[0] = COND_EQ; - machine->CondCodes[1] = COND_EQ; - machine->CondCodes[2] = COND_EQ; - machine->CondCodes[3] = COND_EQ; -} - - - -/** - * Execute the current fragment program, operating on the given span. - */ -void -_swrast_exec_fragment_program( GLcontext *ctx, struct sw_span *span ) -{ - const struct fragment_program *program = ctx->FragmentProgram._Current; - GLuint i; - - ctx->_CurrentProgram = GL_FRAGMENT_PROGRAM_ARB; /* or NV, doesn't matter */ - - if (program->Parameters) { - _mesa_load_state_parameters(ctx, program->Parameters); - } - - for (i = 0; i < span->end; i++) { - if (span->array->mask[i]) { - init_machine(ctx, &ctx->FragmentProgram.Machine, - ctx->FragmentProgram._Current, span, i); - -#ifdef USE_TCC - if (!_swrast_execute_codegen_program(ctx, program, ~0, - &ctx->FragmentProgram.Machine, - span, i)) { - span->array->mask[i] = GL_FALSE; /* killed fragment */ - span->writeAll = GL_FALSE; - } -#else - if (!execute_program(ctx, program, ~0, - &ctx->FragmentProgram.Machine, span, i)) { - span->array->mask[i] = GL_FALSE; /* killed fragment */ - span->writeAll = GL_FALSE; - } -#endif - - /* Store output registers */ - { - const GLfloat *colOut - = ctx->FragmentProgram.Machine.Outputs[FRAG_OUTPUT_COLR]; - UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][RCOMP], colOut[0]); - UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][GCOMP], colOut[1]); - UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][BCOMP], colOut[2]); - UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][ACOMP], colOut[3]); - } - /* depth value */ - if (program->OutputsWritten & (1 << FRAG_OUTPUT_DEPR)) { - const GLfloat depth - = ctx->FragmentProgram.Machine.Outputs[FRAG_OUTPUT_DEPR][2]; - span->array->z[i] = IROUND(depth * ctx->DrawBuffer->_DepthMaxF); - } - } - } - - if (program->OutputsWritten & (1 << FRAG_OUTPUT_DEPR)) { - span->interpMask &= ~SPAN_Z; - span->arrayMask |= SPAN_Z; - } - - ctx->_CurrentProgram = 0; -} - diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_nvfragprog.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_nvfragprog.h deleted file mode 100644 index ac5a15fe9..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_nvfragprog.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_NVFRAGPROG_H -#define S_NVFRAGPROG_H - - -#include "s_context.h" - - -extern void -_swrast_exec_fragment_program( GLcontext *ctx, struct sw_span *span ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_pixeltex.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_pixeltex.c deleted file mode 100644 index 1c65290d4..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_pixeltex.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * This file implements both the GL_SGIX_pixel_texture and - * GL_SIGS_pixel_texture extensions. Luckily, they pretty much - * overlap in functionality so we use the same state variables - * and execution code for both. - */ - - -#include "glheader.h" -#include "colormac.h" -#include "imports.h" - -#include "s_context.h" -#include "s_pixeltex.h" -#include "s_texture.h" - - -/* - * Convert RGBA values into strq texture coordinates. - */ -static void -pixeltexgen(GLcontext *ctx, GLuint n, const GLchan rgba[][4], - GLfloat texcoord[][4]) -{ - if (ctx->Pixel.FragmentRgbSource == GL_CURRENT_RASTER_COLOR) { - GLuint i; - for (i = 0; i < n; i++) { - texcoord[i][0] = ctx->Current.RasterColor[RCOMP]; - texcoord[i][1] = ctx->Current.RasterColor[GCOMP]; - texcoord[i][2] = ctx->Current.RasterColor[BCOMP]; - } - } - else { - GLuint i; - ASSERT(ctx->Pixel.FragmentRgbSource == GL_PIXEL_GROUP_COLOR_SGIS); - for (i = 0; i < n; i++) { - texcoord[i][0] = CHAN_TO_FLOAT(rgba[i][RCOMP]); - texcoord[i][1] = CHAN_TO_FLOAT(rgba[i][GCOMP]); - texcoord[i][2] = CHAN_TO_FLOAT(rgba[i][BCOMP]); - } - } - - if (ctx->Pixel.FragmentAlphaSource == GL_CURRENT_RASTER_COLOR) { - GLuint i; - for (i = 0; i < n; i++) { - texcoord[i][3] = ctx->Current.RasterColor[ACOMP]; - } - } - else { - GLuint i; - ASSERT(ctx->Pixel.FragmentAlphaSource == GL_PIXEL_GROUP_COLOR_SGIS); - for (i = 0; i < n; i++) { - texcoord[i][3] = CHAN_TO_FLOAT(rgba[i][ACOMP]); - } - } -} - - - -/* - * Used by glDraw/CopyPixels: the incoming image colors are treated - * as texture coordinates. Use those coords to texture the image. - * This is for GL_SGIS_pixel_texture / GL_SGIX_pixel_texture. - */ -void -_swrast_pixel_texture(GLcontext *ctx, struct sw_span *span) -{ - GLuint unit; - - ASSERT(!(span->arrayMask & SPAN_TEXTURE)); - span->arrayMask |= SPAN_TEXTURE; - span->interpMask &= ~SPAN_TEXTURE; - - /* convert colors into texture coordinates */ - pixeltexgen( ctx, span->end, - (const GLchan (*)[4]) span->array->rgba, - span->array->texcoords[0] ); - - /* copy the new texture units for all enabled units */ - for (unit = 1; unit < ctx->Const.MaxTextureUnits; unit++) { - if (ctx->Texture.Unit[unit]._ReallyEnabled) { - MEMCPY( span->array->texcoords[unit], span->array->texcoords[0], - span->end * 4 * sizeof(GLfloat) ); - } - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_pixeltex.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_pixeltex.h deleted file mode 100644 index 6ef7a44df..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_pixeltex.h +++ /dev/null @@ -1,38 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 4.1 - * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_PIXELTEX_H -#define S_PIXELTEX_H - -#include "mtypes.h" -#include "swrast.h" - - -extern void -_swrast_pixel_texture(GLcontext *ctx, struct sw_span *span); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_points.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_points.c deleted file mode 100644 index 5879bccf1..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_points.c +++ /dev/null @@ -1,275 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "macros.h" -#include "texstate.h" -#include "s_context.h" -#include "s_feedback.h" -#include "s_points.h" -#include "s_span.h" - - - -#define RGBA 0x1 -#define INDEX 0x2 -#define SMOOTH 0x4 -#define TEXTURE 0x8 -#define SPECULAR 0x10 -#define LARGE 0x20 -#define ATTENUATE 0x40 -#define SPRITE 0x80 - - -/* - * CI points with size == 1.0 - */ -#define FLAGS (INDEX) -#define NAME size1_ci_point -#include "s_pointtemp.h" - - -/* - * General CI points. - */ -#define FLAGS (INDEX | LARGE) -#define NAME general_ci_point -#include "s_pointtemp.h" - - -/* - * Antialiased CI points. - */ -#define FLAGS (INDEX | SMOOTH) -#define NAME antialiased_ci_point -#include "s_pointtemp.h" - - -/* - * Distance attenuated, general CI points. - */ -#define FLAGS (INDEX | ATTENUATE) -#define NAME atten_general_ci_point -#include "s_pointtemp.h" - - -/* - * RGBA points with size == 1.0 - */ -#define FLAGS (RGBA) -#define NAME size1_rgba_point -#include "s_pointtemp.h" - - -/* - * General RGBA points. - */ -#define FLAGS (RGBA | LARGE) -#define NAME general_rgba_point -#include "s_pointtemp.h" - - -/* - * Antialiased RGBA points. - */ -#define FLAGS (RGBA | SMOOTH) -#define NAME antialiased_rgba_point -#include "s_pointtemp.h" - - -/* - * Textured RGBA points. - */ -#define FLAGS (RGBA | LARGE | TEXTURE | SPECULAR) -#define NAME textured_rgba_point -#include "s_pointtemp.h" - - -/* - * Antialiased points with texture mapping. - */ -#define FLAGS (RGBA | SMOOTH | TEXTURE | SPECULAR) -#define NAME antialiased_tex_rgba_point -#include "s_pointtemp.h" - - -/* - * Distance attenuated, general RGBA points. - */ -#define FLAGS (RGBA | ATTENUATE) -#define NAME atten_general_rgba_point -#include "s_pointtemp.h" - - -/* - * Distance attenuated, textured RGBA points. - */ -#define FLAGS (RGBA | ATTENUATE | TEXTURE | SPECULAR) -#define NAME atten_textured_rgba_point -#include "s_pointtemp.h" - - -/* - * Distance attenuated, antialiased points with or without texture mapping. - */ -#define FLAGS (RGBA | ATTENUATE | TEXTURE | SMOOTH) -#define NAME atten_antialiased_rgba_point -#include "s_pointtemp.h" - - -/* - * Sprite (textured point) - */ -#define FLAGS (RGBA | SPRITE | SPECULAR) -#define NAME sprite_point -#include "s_pointtemp.h" - - -#define FLAGS (RGBA | SPRITE | SPECULAR | ATTENUATE) -#define NAME atten_sprite_point -#include "s_pointtemp.h" - - - -void _swrast_add_spec_terms_point( GLcontext *ctx, - const SWvertex *v0 ) -{ - SWvertex *ncv0 = (SWvertex *)v0; - GLchan c[1][4]; - COPY_CHAN4( c[0], ncv0->color ); - ACC_3V( ncv0->color, ncv0->specular ); - SWRAST_CONTEXT(ctx)->SpecPoint( ctx, ncv0 ); - COPY_CHAN4( ncv0->color, c[0] ); -} - - - -/* record the current point function name */ -#ifdef DEBUG - -static const char *pntFuncName = NULL; - -#define USE(pntFunc) \ -do { \ - pntFuncName = #pntFunc; \ - /*printf("%s\n", pntFuncName);*/ \ - swrast->Point = pntFunc; \ -} while (0) - -#else - -#define USE(pntFunc) swrast->Point = pntFunc - -#endif - - -/* - * Examine the current context to determine which point drawing function - * should be used. - */ -void -_swrast_choose_point( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLboolean rgbMode = ctx->Visual.rgbMode; - - if (ctx->RenderMode==GL_RENDER) { - if (ctx->Point.PointSprite) { - /* GL_ARB_point_sprite / GL_NV_point_sprite */ - /* XXX this might not be good enough */ - if (ctx->Point._Attenuated) - USE(atten_sprite_point); - else - USE(sprite_point); - } - else if (ctx->Point.SmoothFlag) { - /* Smooth points */ - if (rgbMode) { - if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) { - USE(atten_antialiased_rgba_point); - } - else if (ctx->Texture._EnabledCoordUnits) { - USE(antialiased_tex_rgba_point); - } - else { - USE(antialiased_rgba_point); - } - } - else { - USE(antialiased_ci_point); - } - } - else if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) { - if (rgbMode) { - if (ctx->Texture._EnabledCoordUnits) { - if (ctx->Point.SmoothFlag) { - USE(atten_antialiased_rgba_point); - } - else { - USE(atten_textured_rgba_point); - } - } - else { - USE(atten_general_rgba_point); - } - } - else { - /* ci, atten */ - USE(atten_general_ci_point); - } - } - else if (ctx->Texture._EnabledCoordUnits && rgbMode) { - /* textured */ - USE(textured_rgba_point); - } - else if (ctx->Point._Size != 1.0) { - /* large points */ - if (rgbMode) { - USE(general_rgba_point); - } - else { - USE(general_ci_point); - } - } - else { - /* single pixel points */ - if (rgbMode) { - USE(size1_rgba_point); - } - else { - USE(size1_ci_point); - } - } - } - else if (ctx->RenderMode==GL_FEEDBACK) { - USE(_swrast_feedback_point); - } - else { - /* GL_SELECT mode */ - USE(_swrast_select_point); - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_points.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_points.h deleted file mode 100644 index 40b442e95..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_points.h +++ /dev/null @@ -1,39 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_POINTS_H -#define S_POINTS_H - -#include "mtypes.h" - -extern void -_swrast_choose_point( GLcontext *ctx ); - -extern void -_swrast_add_spec_terms_point( GLcontext *ctx, - const SWvertex *v0 ); - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_pointtemp.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_pointtemp.h deleted file mode 100644 index 4ce261009..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_pointtemp.h +++ /dev/null @@ -1,419 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * Regarding GL_NV_point_sprite: - * - * Portions of this software may use or implement intellectual - * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims - * any and all warranties with respect to such intellectual property, - * including any use thereof or modifications thereto. - */ - - -/* - * Point rendering template code. - * - * Set FLAGS = bitwise-OR of the following tokens: - * - * RGBA = do rgba instead of color index - * SMOOTH = do antialiasing - * TEXTURE = do texture coords - * SPECULAR = do separate specular color - * LARGE = do points with diameter > 1 pixel - * ATTENUATE = compute point size attenuation - * SPRITE = GL_ARB_point_sprite / GL_NV_point_sprite - * - * Notes: LARGE and ATTENUATE are exclusive of each other. - * TEXTURE requires RGBA - */ - - -/* - * NOTES on antialiased point rasterization: - * - * Let d = distance of fragment center from vertex. - * if d < rmin2 then - * fragment has 100% coverage - * else if d > rmax2 then - * fragment has 0% coverage - * else - * fragment has % coverage = (d - rmin2) / (rmax2 - rmin2) - */ - - - -static void -NAME ( GLcontext *ctx, const SWvertex *vert ) -{ -#if FLAGS & (ATTENUATE | LARGE | SMOOTH | SPRITE) - GLfloat size; -#endif -#if FLAGS & RGBA -#if (FLAGS & ATTENUATE) && (FLAGS & SMOOTH) - GLfloat alphaAtten; -#endif - const GLchan red = vert->color[0]; - const GLchan green = vert->color[1]; - const GLchan blue = vert->color[2]; - const GLchan alpha = vert->color[3]; -#endif -#if FLAGS & SPECULAR - const GLchan specRed = vert->specular[0]; - const GLchan specGreen = vert->specular[1]; - const GLchan specBlue = vert->specular[2]; -#endif -#if FLAGS & INDEX - const GLuint colorIndex = (GLuint) vert->index; /* XXX round? */ -#endif -#if FLAGS & TEXTURE - GLfloat texcoord[MAX_TEXTURE_COORD_UNITS][4]; - GLuint u; -#endif - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct sw_span *span = &(swrast->PointSpan); - - /* Cull primitives with malformed coordinates. - */ - { - float tmp = vert->win[0] + vert->win[1]; - if (IS_INF_OR_NAN(tmp)) - return; - } - - /* - * Span init - */ - span->interpMask = SPAN_FOG; - span->arrayMask = SPAN_XY | SPAN_Z; - span->fog = vert->fog; - span->fogStep = 0.0; -#if FLAGS & RGBA - span->arrayMask |= SPAN_RGBA; -#endif -#if FLAGS & SPECULAR - span->arrayMask |= SPAN_SPEC; -#endif -#if FLAGS & INDEX - span->arrayMask |= SPAN_INDEX; -#endif -#if FLAGS & TEXTURE - span->arrayMask |= SPAN_TEXTURE; - if (ctx->FragmentProgram._Active) { - /* Don't divide texture s,t,r by q (use TXP to do that) */ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture._EnabledCoordUnits & (1 << u)) { - COPY_4V(texcoord[u], vert->texcoord[u]); - } - } - } - else { - /* Divide texture s,t,r by q here */ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture._EnabledCoordUnits & (1 << u)) { - const GLfloat q = vert->texcoord[u][3]; - const GLfloat invQ = (q == 0.0F || q == 1.0F) ? 1.0F : (1.0F / q); - texcoord[u][0] = vert->texcoord[u][0] * invQ; - texcoord[u][1] = vert->texcoord[u][1] * invQ; - texcoord[u][2] = vert->texcoord[u][2] * invQ; - texcoord[u][3] = q; - } - } - } - /* need these for fragment programs */ - span->w = 1.0F; - span->dwdx = 0.0F; - span->dwdy = 0.0F; -#endif -#if FLAGS & SMOOTH - span->arrayMask |= SPAN_COVERAGE; -#endif -#if FLAGS & SPRITE - span->arrayMask |= SPAN_TEXTURE; -#endif - - /* Compute point size if not known to be one */ -#if FLAGS & ATTENUATE - /* first, clamp attenuated size to the user-specifed range */ - size = CLAMP(vert->pointSize, ctx->Point.MinSize, ctx->Point.MaxSize); -#if (FLAGS & RGBA) && (FLAGS & SMOOTH) - /* only if multisampling, compute the fade factor */ - if (ctx->Multisample.Enabled) { - if (vert->pointSize >= ctx->Point.Threshold) { - alphaAtten = 1.0F; - } - else { - GLfloat dsize = vert->pointSize / ctx->Point.Threshold; - alphaAtten = dsize * dsize; - } - } - else { - alphaAtten = 1.0; - } -#endif -#elif FLAGS & (LARGE | SMOOTH | SPRITE) - /* constant, non-attenuated size */ - size = ctx->Point._Size; /* this is already clamped */ -#endif - - -#if FLAGS & (ATTENUATE | LARGE | SMOOTH | SPRITE) - /*** - *** Multi-pixel points - ***/ - - /* do final clamping now */ - if (ctx->Point.SmoothFlag) { - size = CLAMP(size, ctx->Const.MinPointSizeAA, ctx->Const.MaxPointSizeAA); - } - else { - size = CLAMP(size, ctx->Const.MinPointSize, ctx->Const.MaxPointSize); - } - - {{ - GLint x, y; - const GLfloat radius = 0.5F * size; - const GLint z = (GLint) (vert->win[2] + 0.5F); - GLuint count; -#if FLAGS & SMOOTH - const GLfloat rmin = radius - 0.7071F; /* 0.7071 = sqrt(2)/2 */ - const GLfloat rmax = radius + 0.7071F; - const GLfloat rmin2 = MAX2(0.0F, rmin * rmin); - const GLfloat rmax2 = rmax * rmax; - const GLfloat cscale = 1.0F / (rmax2 - rmin2); - const GLint xmin = (GLint) (vert->win[0] - radius); - const GLint xmax = (GLint) (vert->win[0] + radius); - const GLint ymin = (GLint) (vert->win[1] - radius); - const GLint ymax = (GLint) (vert->win[1] + radius); -#else - /* non-smooth */ - GLint xmin, xmax, ymin, ymax; - GLint iSize = (GLint) (size + 0.5F); - GLint iRadius; - iSize = MAX2(1, iSize); - iRadius = iSize / 2; - if (iSize & 1) { - /* odd size */ - xmin = (GLint) (vert->win[0] - iRadius); - xmax = (GLint) (vert->win[0] + iRadius); - ymin = (GLint) (vert->win[1] - iRadius); - ymax = (GLint) (vert->win[1] + iRadius); - } - else { - /* even size */ - xmin = (GLint) vert->win[0] - iRadius + 1; - xmax = xmin + iSize - 1; - ymin = (GLint) vert->win[1] - iRadius + 1; - ymax = ymin + iSize - 1; - } -#endif /*SMOOTH*/ - - /* check if we need to flush */ - if (span->end + (xmax-xmin+1) * (ymax-ymin+1) >= MAX_WIDTH || - (swrast->_RasterMask & (BLEND_BIT | LOGIC_OP_BIT | MASKING_BIT))) { -#if FLAGS & RGBA - _swrast_write_rgba_span(ctx, span); -#else - _swrast_write_index_span(ctx, span); -#endif - span->end = 0; - } - - /* - * OK, generate fragments - */ - count = span->end; - (void) radius; - for (y = ymin; y <= ymax; y++) { - /* check if we need to flush */ - if (count + (xmax-xmin+1) >= MAX_WIDTH) { - span->end = count; -#if FLAGS & RGBA - _swrast_write_rgba_span(ctx, span); -#else - _swrast_write_index_span(ctx, span); -#endif - count = span->end = 0; - } - for (x = xmin; x <= xmax; x++) { -#if FLAGS & (SPRITE | TEXTURE) - GLuint u; -#endif - -#if FLAGS & RGBA - span->array->rgba[count][RCOMP] = red; - span->array->rgba[count][GCOMP] = green; - span->array->rgba[count][BCOMP] = blue; - span->array->rgba[count][ACOMP] = alpha; -#endif -#if FLAGS & SPECULAR - span->array->spec[count][RCOMP] = specRed; - span->array->spec[count][GCOMP] = specGreen; - span->array->spec[count][BCOMP] = specBlue; -#endif -#if FLAGS & INDEX - span->array->index[count] = colorIndex; -#endif -#if FLAGS & TEXTURE - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture._EnabledCoordUnits & (1 << u)) { - COPY_4V(span->array->texcoords[u][count], texcoord[u]); - } - } -#endif - -#if FLAGS & SMOOTH - /* compute coverage */ - { - const GLfloat dx = x - vert->win[0] + 0.5F; - const GLfloat dy = y - vert->win[1] + 0.5F; - const GLfloat dist2 = dx * dx + dy * dy; - if (dist2 < rmax2) { - if (dist2 >= rmin2) { - /* compute partial coverage */ - span->array->coverage[count] = 1.0F - (dist2 - rmin2) * cscale; -#if FLAGS & INDEX - /* coverage in [0,15] */ - span->array->coverage[count] *= 15.0; -#endif - } - else { - /* full coverage */ - span->array->coverage[count] = 1.0F; - } - - span->array->x[count] = x; - span->array->y[count] = y; - span->array->z[count] = z; - -#if (FLAGS & ATTENUATE) && (FLAGS & RGBA) - span->array->rgba[count][ACOMP] = (GLchan) (alpha * alphaAtten); -#elif FLAGS & RGBA - span->array->rgba[count][ACOMP] = alpha; -#endif /*ATTENUATE*/ - count++; - } /*if*/ - } - -#else /*SMOOTH*/ - - /* not smooth (square points) */ - span->array->x[count] = x; - span->array->y[count] = y; - span->array->z[count] = z; - -#if FLAGS & SPRITE - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture.Unit[u]._ReallyEnabled) { - if (ctx->Point.CoordReplace[u]) { - GLfloat s = 0.5F + (x + 0.5F - vert->win[0]) / size; - GLfloat t, r; - if (ctx->Point.SpriteOrigin == GL_LOWER_LEFT) - t = 0.5F + (y + 0.5F - vert->win[1]) / size; - else /* GL_UPPER_LEFT */ - t = 0.5F - (y + 0.5F - vert->win[1]) / size; - if (ctx->Point.SpriteRMode == GL_ZERO) - r = 0.0F; - else if (ctx->Point.SpriteRMode == GL_S) - r = vert->texcoord[u][0]; - else /* GL_R */ - r = vert->texcoord[u][2]; - span->array->texcoords[u][count][0] = s; - span->array->texcoords[u][count][1] = t; - span->array->texcoords[u][count][2] = r; - span->array->texcoords[u][count][3] = 1.0F; - } - else { - COPY_4V(span->array->texcoords[u][count], vert->texcoord[u]); - } - } - } -#endif /*SPRITE*/ - - count++; /* square point */ - -#endif /*SMOOTH*/ - - } /*for x*/ - } /*for y*/ - span->end = count; - }} - -#else /* LARGE | ATTENUATE | SMOOTH | SPRITE */ - - /*** - *** Single-pixel points - ***/ - {{ - GLuint count; - - /* check if we need to flush */ - if (span->end >= MAX_WIDTH || - (swrast->_RasterMask & (BLEND_BIT | LOGIC_OP_BIT | MASKING_BIT))) { -#if FLAGS & RGBA - _swrast_write_rgba_span(ctx, span); -#else - _swrast_write_index_span(ctx, span); -#endif - span->end = 0; - } - - count = span->end; - -#if FLAGS & RGBA - span->array->rgba[count][RCOMP] = red; - span->array->rgba[count][GCOMP] = green; - span->array->rgba[count][BCOMP] = blue; - span->array->rgba[count][ACOMP] = alpha; -#endif -#if FLAGS & SPECULAR - span->array->spec[count][RCOMP] = specRed; - span->array->spec[count][GCOMP] = specGreen; - span->array->spec[count][BCOMP] = specBlue; -#endif -#if FLAGS & INDEX - span->array->index[count] = colorIndex; -#endif -#if FLAGS & TEXTURE - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture.Unit[u]._ReallyEnabled) { - COPY_4V(span->array->texcoords[u][count], texcoord[u]); - } - } -#endif - - span->array->x[count] = (GLint) vert->win[0]; - span->array->y[count] = (GLint) vert->win[1]; - span->array->z[count] = (GLint) (vert->win[2] + 0.5F); - span->end = count + 1; - }} - -#endif /* LARGE || ATTENUATE || SMOOTH */ - - ASSERT(span->end <= MAX_WIDTH); -} - - -#undef FLAGS -#undef NAME diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_readpix.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_readpix.c deleted file mode 100644 index dda35044a..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_readpix.c +++ /dev/null @@ -1,584 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.4.1 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "bufferobj.h" -#include "colormac.h" -#include "convolve.h" -#include "context.h" -#include "feedback.h" -#include "image.h" -#include "macros.h" -#include "imports.h" -#include "pixel.h" - -#include "s_context.h" -#include "s_depth.h" -#include "s_span.h" -#include "s_stencil.h" - - - -/* - * Read a block of color index pixels. - */ -static void -read_index_pixels( GLcontext *ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum type, GLvoid *pixels, - const struct gl_pixelstore_attrib *packing ) -{ - struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; - /* - SWcontext *swrast = SWRAST_CONTEXT(ctx); - */ - GLint i, readWidth; - - /* error checking */ - if (ctx->Visual.rgbMode) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glReadPixels" ); - return; - } - - if (type != GL_BYTE && - type != GL_UNSIGNED_BYTE && - type != GL_SHORT && - type != GL_UNSIGNED_SHORT && - type != GL_INT && - type != GL_UNSIGNED_INT && - type != GL_FLOAT) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glReadPixels(index type)"); - return; - } - - _swrast_use_read_buffer(ctx); - - /* XXX: width should never be > MAX_WIDTH since we did clipping earlier */ - readWidth = (width > MAX_WIDTH) ? MAX_WIDTH : width; - - /* process image row by row */ - for (i = 0; i < height; i++) { - GLuint index[MAX_WIDTH]; - GLvoid *dest; - ASSERT(rb->DataType == GL_UNSIGNED_INT); - rb->GetRow(ctx, rb, readWidth, x, y + i, index); - - dest = _mesa_image_address2d(packing, pixels, width, height, - GL_COLOR_INDEX, type, i, 0); - - _mesa_pack_index_span(ctx, readWidth, type, dest, index, - &ctx->Pack, ctx->_ImageTransferState); - } - - _swrast_use_draw_buffer(ctx); -} - - - -/** - * Read pixels for format=GL_DEPTH_COMPONENT. - */ -static void -read_depth_pixels( GLcontext *ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum type, GLvoid *pixels, - const struct gl_pixelstore_attrib *packing ) -{ - struct gl_renderbuffer *rb - = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; - GLint readWidth; - GLboolean bias_or_scale; - - /* Error checking */ - if (ctx->ReadBuffer->Visual.depthBits <= 0 || !rb) { - /* No depth buffer */ - _mesa_error( ctx, GL_INVALID_OPERATION, "glReadPixels" ); - return; - } - - if (type != GL_BYTE && - type != GL_UNSIGNED_BYTE && - type != GL_SHORT && - type != GL_UNSIGNED_SHORT && - type != GL_INT && - type != GL_UNSIGNED_INT && - type != GL_FLOAT) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glReadPixels(depth type)"); - return; - } - - /* XXX: width should never be > MAX_WIDTH since we did clipping earlier */ - readWidth = (width > MAX_WIDTH) ? MAX_WIDTH : width; - - bias_or_scale = ctx->Pixel.DepthBias!=0.0 || ctx->Pixel.DepthScale!=1.0; - - if (type==GL_UNSIGNED_SHORT && ctx->ReadBuffer->Visual.depthBits == 16 - && !bias_or_scale && !packing->SwapBytes) { - /* Special case: directly read 16-bit unsigned depth values. */ - GLint j; - for (j=0;j<height;j++,y++) { - GLdepth depth[MAX_WIDTH]; - GLushort *dst = (GLushort*) _mesa_image_address2d(packing, pixels, - width, height, GL_DEPTH_COMPONENT, type, j, 0); - GLint i; - _swrast_read_depth_span(ctx, rb, width, x, y, depth); - for (i = 0; i < width; i++) - dst[i] = depth[i]; - } - } - else if (type==GL_UNSIGNED_INT && ctx->ReadBuffer->Visual.depthBits == 32 - && !bias_or_scale && !packing->SwapBytes) { - /* Special case: directly read 32-bit unsigned depth values. */ - GLint j; - for (j=0;j<height;j++,y++) { - GLdepth *dst = (GLdepth *) _mesa_image_address2d(packing, pixels, - width, height, GL_DEPTH_COMPONENT, type, j, 0); - _swrast_read_depth_span(ctx, rb, width, x, y, dst); - } - } - else { - /* General case (slower) */ - GLint j; - for (j=0;j<height;j++,y++) { - GLfloat depth[MAX_WIDTH]; - GLvoid *dest; - - _swrast_read_depth_span_float(ctx, rb, readWidth, x, y, depth); - - dest = _mesa_image_address2d(packing, pixels, width, height, - GL_DEPTH_COMPONENT, type, j, 0); - - _mesa_pack_depth_span(ctx, readWidth, (GLdepth *) dest, type, - depth, packing); - } - } -} - - -/** - * Read pixels for format=GL_STENCIL_INDEX. - */ -static void -read_stencil_pixels( GLcontext *ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum type, GLvoid *pixels, - const struct gl_pixelstore_attrib *packing ) -{ - struct gl_renderbuffer *rb - = ctx->ReadBuffer->Attachment[BUFFER_STENCIL].Renderbuffer; - GLint j, readWidth; - - if (type != GL_BYTE && - type != GL_UNSIGNED_BYTE && - type != GL_SHORT && - type != GL_UNSIGNED_SHORT && - type != GL_INT && - type != GL_UNSIGNED_INT && - type != GL_FLOAT && - type != GL_BITMAP) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glReadPixels(stencil type)"); - return; - } - - if (ctx->ReadBuffer->Visual.stencilBits <= 0 || !rb) { - /* No stencil buffer */ - _mesa_error( ctx, GL_INVALID_OPERATION, "glReadPixels" ); - return; - } - - /* XXX: width should never be > MAX_WIDTH since we did clipping earlier */ - readWidth = (width > MAX_WIDTH) ? MAX_WIDTH : width; - - /* process image row by row */ - for (j=0;j<height;j++,y++) { - GLvoid *dest; - GLstencil stencil[MAX_WIDTH]; - - _swrast_read_stencil_span(ctx, rb, readWidth, x, y, stencil); - - dest = _mesa_image_address2d(packing, pixels, width, height, - GL_STENCIL_INDEX, type, j, 0); - - _mesa_pack_stencil_span(ctx, readWidth, type, dest, stencil, packing); - } -} - - - -/** - * Optimized glReadPixels for particular pixel formats: - * GL_UNSIGNED_BYTE, GL_RGBA - * when pixel scaling, biasing and mapping are disabled. - */ -static GLboolean -read_fast_rgba_pixels( GLcontext *ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - GLvoid *pixels, - const struct gl_pixelstore_attrib *packing ) -{ - struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; - /* can't do scale, bias, mapping, etc */ - if (ctx->_ImageTransferState) - return GL_FALSE; - - /* can't do fancy pixel packing */ - if (packing->Alignment != 1 || packing->SwapBytes || packing->LsbFirst) - return GL_FALSE; - - { - GLint srcX = x; - GLint srcY = y; - GLint readWidth = width; /* actual width read */ - GLint readHeight = height; /* actual height read */ - GLint skipPixels = packing->SkipPixels; - GLint skipRows = packing->SkipRows; - GLint rowLength; - - if (packing->RowLength > 0) - rowLength = packing->RowLength; - else - rowLength = width; - - /* - * Ready to read! - * The window region at (destX, destY) of size (readWidth, readHeight) - * will be read back. - * We'll write pixel data to buffer pointed to by "pixels" but we'll - * skip "skipRows" rows and skip "skipPixels" pixels/row. - */ -#if CHAN_BITS == 8 - if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) { -#elif CHAN_BITS == 16 - if (format == GL_RGBA && type == GL_UNSIGNED_SHORT) { -#else - if (0) { -#endif - GLchan *dest = (GLchan *) pixels - + (skipRows * rowLength + skipPixels) * 4; - GLint row; - - if (packing->Invert) { - /* start at top and go down */ - dest += (readHeight - 1) * rowLength * 4; - rowLength = -rowLength; - } - - ASSERT(rb->GetRow); - for (row=0; row<readHeight; row++) { - rb->GetRow(ctx, rb, readWidth, srcX, srcY, dest); - dest += rowLength * 4; - srcY++; - } - return GL_TRUE; - } - else { - /* can't do this format/type combination */ - return GL_FALSE; - } - } -} - - - -/* - * Read R, G, B, A, RGB, L, or LA pixels. - */ -static void -read_rgba_pixels( GLcontext *ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum format, GLenum type, GLvoid *pixels, - const struct gl_pixelstore_attrib *packing ) -{ - struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; - GLint readWidth; - - if (!rb) { - /* No readbuffer is OK with GL_EXT_framebuffer_object */ - return; - } - - /* do error checking on pixel type, format was already checked by caller */ - switch (type) { - case GL_UNSIGNED_BYTE: - case GL_BYTE: - case GL_UNSIGNED_SHORT: - case GL_SHORT: - case GL_UNSIGNED_INT: - case GL_INT: - case GL_FLOAT: - case GL_UNSIGNED_BYTE_3_3_2: - case GL_UNSIGNED_BYTE_2_3_3_REV: - case GL_UNSIGNED_SHORT_5_6_5: - case GL_UNSIGNED_SHORT_5_6_5_REV: - case GL_UNSIGNED_SHORT_4_4_4_4: - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - case GL_UNSIGNED_SHORT_5_5_5_1: - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - case GL_UNSIGNED_INT_10_10_10_2: - case GL_UNSIGNED_INT_2_10_10_10_REV: - /* valid pixel type */ - break; - case GL_HALF_FLOAT_ARB: - if (!ctx->Extensions.ARB_half_float_pixel) { - _mesa_error( ctx, GL_INVALID_ENUM, "glReadPixels(type)" ); - return; - } - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glReadPixels(type)" ); - return; - } - - if (!_mesa_is_legal_format_and_type(ctx, format, type) || - format == GL_INTENSITY) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(format or type)"); - return; - } - - _swrast_use_read_buffer(ctx); - - /* Try optimized path first */ - if (read_fast_rgba_pixels( ctx, x, y, width, height, - format, type, pixels, packing )) { - - _swrast_use_draw_buffer(ctx); - return; /* done! */ - } - - /* XXX: width should never be > MAX_WIDTH since we did clipping earlier */ - readWidth = (width > MAX_WIDTH) ? MAX_WIDTH : width; - - - if (ctx->Pixel.Convolution2DEnabled || ctx->Pixel.Separable2DEnabled) { - const GLuint transferOps = ctx->_ImageTransferState; - GLfloat *dest, *src, *tmpImage, *convImage; - GLint row; - - tmpImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); - if (!tmpImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glReadPixels"); - return; - } - convImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); - if (!convImage) { - _mesa_free(tmpImage); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glReadPixels"); - return; - } - - /* read full RGBA, FLOAT image */ - dest = tmpImage; - for (row = 0; row < height; row++, y++) { - GLchan rgba[MAX_WIDTH][4]; - if (ctx->Visual.rgbMode) { - _swrast_read_rgba_span(ctx, rb, readWidth, x, y, rgba); - } - else { - GLuint index[MAX_WIDTH]; - ASSERT(rb->DataType == GL_UNSIGNED_INT); - rb->GetRow(ctx, rb, readWidth, x, y, index); - if (ctx->Pixel.IndexShift != 0 || ctx->Pixel.IndexOffset !=0 ) { - _mesa_map_ci(ctx, readWidth, index); - } - _mesa_map_ci_to_rgba_chan(ctx, readWidth, index, rgba); - } - _mesa_pack_rgba_span_chan(ctx, readWidth, (const GLchan (*)[4]) rgba, - GL_RGBA, GL_FLOAT, dest, &ctx->DefaultPacking, - transferOps & IMAGE_PRE_CONVOLUTION_BITS); - dest += width * 4; - } - - /* do convolution */ - if (ctx->Pixel.Convolution2DEnabled) { - _mesa_convolve_2d_image(ctx, &readWidth, &height, tmpImage, convImage); - } - else { - ASSERT(ctx->Pixel.Separable2DEnabled); - _mesa_convolve_sep_image(ctx, &readWidth, &height, tmpImage, convImage); - } - _mesa_free(tmpImage); - - /* finish transfer ops and pack the resulting image */ - src = convImage; - for (row = 0; row < height; row++) { - GLvoid *dest; - dest = _mesa_image_address2d(packing, pixels, readWidth, height, - format, type, row, 0); - _mesa_pack_rgba_span_float(ctx, readWidth, - (const GLfloat (*)[4]) src, - format, type, dest, packing, - transferOps & IMAGE_POST_CONVOLUTION_BITS); - src += readWidth * 4; - } - } - else { - /* no convolution */ - GLint row; - for (row = 0; row < height; row++, y++) { - GLchan rgba[MAX_WIDTH][4]; - GLvoid *dst; - if (ctx->Visual.rgbMode) { - _swrast_read_rgba_span(ctx, rb, readWidth, x, y, rgba); - } - else { - GLuint index[MAX_WIDTH]; - ASSERT(rb->DataType == GL_UNSIGNED_INT); - rb->GetRow(ctx, rb, readWidth, x, y, index); - if (ctx->Pixel.IndexShift != 0 || ctx->Pixel.IndexOffset != 0) { - _mesa_map_ci(ctx, readWidth, index); - } - _mesa_map_ci_to_rgba_chan(ctx, readWidth, index, rgba); - } - dst = _mesa_image_address2d(packing, pixels, width, height, - format, type, row, 0); - if (ctx->Visual.redBits < CHAN_BITS || - ctx->Visual.greenBits < CHAN_BITS || - ctx->Visual.blueBits < CHAN_BITS) { - /* Requantize the color values into floating point and go from - * there. This fixes conformance failures with 16-bit color - * buffers, for example. - */ - DEFMARRAY(GLfloat, rgbaf, MAX_WIDTH, 4); /* mac 32k limitation */ - CHECKARRAY(rgbaf, return); /* mac 32k limitation */ - _mesa_chan_to_float_span(ctx, readWidth, - (CONST GLchan (*)[4]) rgba, rgbaf); - _mesa_pack_rgba_span_float(ctx, readWidth, - (CONST GLfloat (*)[4]) rgbaf, - format, type, dst, packing, - ctx->_ImageTransferState); - UNDEFARRAY(rgbaf); /* mac 32k limitation */ - } - else { - /* GLubytes are fine */ - _mesa_pack_rgba_span_chan(ctx, readWidth, (CONST GLchan (*)[4]) rgba, - format, type, dst, packing, - ctx->_ImageTransferState); - } - } - } - - _swrast_use_draw_buffer(ctx); -} - - -/** - * Software fallback routine for ctx->Driver.ReadPixels(). - * We wind up using the swrast->ReadSpan() routines to do the job. - */ -void -_swrast_ReadPixels( GLcontext *ctx, - GLint x, GLint y, GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *packing, - GLvoid *pixels ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_pixelstore_attrib clippedPacking; - - if (swrast->NewState) - _swrast_validate_derived( ctx ); - - /* Do all needed clipping here, so that we can forget about it later */ - clippedPacking = *packing; - if (clippedPacking.RowLength == 0) { - clippedPacking.RowLength = width; - } - if (!_mesa_clip_readpixels(ctx, &x, &y, &width, &height, - &clippedPacking.SkipPixels, - &clippedPacking.SkipRows)) { - /* The ReadPixels region is totally outside the window bounds */ - return; - } - - if (clippedPacking.BufferObj->Name) { - /* pack into PBO */ - GLubyte *buf; - if (!_mesa_validate_pbo_access(2, &clippedPacking, width, height, 1, - format, type, pixels)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glReadPixels(invalid PBO access)"); - return; - } - buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - GL_WRITE_ONLY_ARB, - clippedPacking.BufferObj); - if (!buf) { - /* buffer is already mapped - that's an error */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(PBO is mapped)"); - return; - } - pixels = ADD_POINTERS(buf, pixels); - } - - RENDER_START(swrast, ctx); - - switch (format) { - case GL_COLOR_INDEX: - read_index_pixels(ctx, x, y, width, height, type, pixels, - &clippedPacking); - break; - case GL_STENCIL_INDEX: - read_stencil_pixels(ctx, x,y, width,height, type, pixels, - &clippedPacking); - break; - case GL_DEPTH_COMPONENT: - read_depth_pixels(ctx, x, y, width, height, type, pixels, - &clippedPacking); - break; - case GL_RED: - case GL_GREEN: - case GL_BLUE: - case GL_ALPHA: - case GL_RGB: - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_RGBA: - case GL_BGR: - case GL_BGRA: - case GL_ABGR_EXT: - read_rgba_pixels(ctx, x, y, width, height, - format, type, pixels, &clippedPacking); - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glReadPixels(format)" ); - /* don't return yet, clean-up */ - } - - RENDER_FINISH(swrast, ctx); - - if (clippedPacking.BufferObj->Name) { - /* done with PBO so unmap it now */ - ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - clippedPacking.BufferObj); - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_span.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_span.c deleted file mode 100644 index 47fa02bf1..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_span.c +++ /dev/null @@ -1,1511 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file swrast/s_span.c - * \brief Span processing functions used by all rasterization functions. - * This is where all the per-fragment tests are performed - * \author Brian Paul - */ - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "macros.h" -#include "imports.h" - -#include "s_atifragshader.h" -#include "s_alpha.h" -#include "s_blend.h" -#include "s_context.h" -#include "s_depth.h" -#include "s_fog.h" -#include "s_logic.h" -#include "s_masking.h" -#include "s_nvfragprog.h" -#include "s_span.h" -#include "s_stencil.h" -#include "s_texture.h" - - -/** - * Init span's Z interpolation values to the RasterPos Z. - * Used during setup for glDraw/CopyPixels. - */ -void -_swrast_span_default_z( GLcontext *ctx, struct sw_span *span ) -{ - const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF; - if (ctx->Visual.depthBits <= 16) - span->z = FloatToFixed(ctx->Current.RasterPos[2] * depthMax + 0.5F); - else - span->z = (GLint) (ctx->Current.RasterPos[2] * depthMax + 0.5F); - span->zStep = 0; - span->interpMask |= SPAN_Z; -} - - -/** - * Init span's fog interpolation values to the RasterPos fog. - * Used during setup for glDraw/CopyPixels. - */ -void -_swrast_span_default_fog( GLcontext *ctx, struct sw_span *span ) -{ - span->fog = _swrast_z_to_fogfactor(ctx, ctx->Current.RasterDistance); - span->fogStep = span->dfogdx = span->dfogdy = 0.0F; - span->interpMask |= SPAN_FOG; -} - - -/** - * Init span's rgba or index interpolation values to the RasterPos color. - * Used during setup for glDraw/CopyPixels. - */ -void -_swrast_span_default_color( GLcontext *ctx, struct sw_span *span ) -{ - if (ctx->Visual.rgbMode) { - GLchan r, g, b, a; - UNCLAMPED_FLOAT_TO_CHAN(r, ctx->Current.RasterColor[0]); - UNCLAMPED_FLOAT_TO_CHAN(g, ctx->Current.RasterColor[1]); - UNCLAMPED_FLOAT_TO_CHAN(b, ctx->Current.RasterColor[2]); - UNCLAMPED_FLOAT_TO_CHAN(a, ctx->Current.RasterColor[3]); -#if CHAN_TYPE == GL_FLOAT - span->red = r; - span->green = g; - span->blue = b; - span->alpha = a; -#else - span->red = IntToFixed(r); - span->green = IntToFixed(g); - span->blue = IntToFixed(b); - span->alpha = IntToFixed(a); -#endif - span->redStep = 0; - span->greenStep = 0; - span->blueStep = 0; - span->alphaStep = 0; - span->interpMask |= SPAN_RGBA; - } - else { - span->index = FloatToFixed(ctx->Current.RasterIndex); - span->indexStep = 0; - span->interpMask |= SPAN_INDEX; - } -} - - -/** - * Init span's texcoord interpolation values to the RasterPos texcoords. - * Used during setup for glDraw/CopyPixels. - */ -void -_swrast_span_default_texcoords( GLcontext *ctx, struct sw_span *span ) -{ - GLuint i; - for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { - const GLfloat *tc = ctx->Current.RasterTexCoords[i]; - if (ctx->FragmentProgram._Active || ctx->ATIFragmentShader._Enabled) { - COPY_4V(span->tex[i], tc); - } - else if (tc[3] > 0.0F) { - /* use (s/q, t/q, r/q, 1) */ - span->tex[i][0] = tc[0] / tc[3]; - span->tex[i][1] = tc[1] / tc[3]; - span->tex[i][2] = tc[2] / tc[3]; - span->tex[i][3] = 1.0; - } - else { - ASSIGN_4V(span->tex[i], 0.0F, 0.0F, 0.0F, 1.0F); - } - ASSIGN_4V(span->texStepX[i], 0.0F, 0.0F, 0.0F, 0.0F); - ASSIGN_4V(span->texStepY[i], 0.0F, 0.0F, 0.0F, 0.0F); - } - span->interpMask |= SPAN_TEXTURE; -} - - -/* Fill in the span.color.rgba array from the interpolation values */ -static void -interpolate_colors(GLcontext *ctx, struct sw_span *span) -{ - const GLuint n = span->end; - GLchan (*rgba)[4] = span->array->rgba; - GLuint i; - (void) ctx; - - ASSERT((span->interpMask & SPAN_RGBA) && - !(span->arrayMask & SPAN_RGBA)); - - if (span->interpMask & SPAN_FLAT) { - /* constant color */ - GLchan color[4]; - color[RCOMP] = FixedToChan(span->red); - color[GCOMP] = FixedToChan(span->green); - color[BCOMP] = FixedToChan(span->blue); - color[ACOMP] = FixedToChan(span->alpha); - for (i = 0; i < n; i++) { - COPY_CHAN4(span->array->rgba[i], color); - } - } - else { - /* interpolate */ -#if CHAN_TYPE == GL_FLOAT - GLfloat r = span->red; - GLfloat g = span->green; - GLfloat b = span->blue; - GLfloat a = span->alpha; - const GLfloat dr = span->redStep; - const GLfloat dg = span->greenStep; - const GLfloat db = span->blueStep; - const GLfloat da = span->alphaStep; -#else - GLfixed r = span->red; - GLfixed g = span->green; - GLfixed b = span->blue; - GLfixed a = span->alpha; - const GLint dr = span->redStep; - const GLint dg = span->greenStep; - const GLint db = span->blueStep; - const GLint da = span->alphaStep; -#endif - for (i = 0; i < n; i++) { - rgba[i][RCOMP] = FixedToChan(r); - rgba[i][GCOMP] = FixedToChan(g); - rgba[i][BCOMP] = FixedToChan(b); - rgba[i][ACOMP] = FixedToChan(a); - r += dr; - g += dg; - b += db; - a += da; - } - } - span->arrayMask |= SPAN_RGBA; -} - - -/* Fill in the span.color.index array from the interpolation values */ -static void -interpolate_indexes(GLcontext *ctx, struct sw_span *span) -{ - GLfixed index = span->index; - const GLint indexStep = span->indexStep; - const GLuint n = span->end; - GLuint *indexes = span->array->index; - GLuint i; - (void) ctx; - ASSERT((span->interpMask & SPAN_INDEX) && - !(span->arrayMask & SPAN_INDEX)); - - if ((span->interpMask & SPAN_FLAT) || (indexStep == 0)) { - /* constant color */ - index = FixedToInt(index); - for (i = 0; i < n; i++) { - indexes[i] = index; - } - } - else { - /* interpolate */ - for (i = 0; i < n; i++) { - indexes[i] = FixedToInt(index); - index += indexStep; - } - } - span->arrayMask |= SPAN_INDEX; - span->interpMask &= ~SPAN_INDEX; -} - - -/* Fill in the span.->array->spec array from the interpolation values */ -static void -interpolate_specular(GLcontext *ctx, struct sw_span *span) -{ - (void) ctx; - if (span->interpMask & SPAN_FLAT) { - /* constant color */ - const GLchan r = FixedToChan(span->specRed); - const GLchan g = FixedToChan(span->specGreen); - const GLchan b = FixedToChan(span->specBlue); - GLuint i; - for (i = 0; i < span->end; i++) { - span->array->spec[i][RCOMP] = r; - span->array->spec[i][GCOMP] = g; - span->array->spec[i][BCOMP] = b; - } - } - else { - /* interpolate */ -#if CHAN_TYPE == GL_FLOAT - GLfloat r = span->specRed; - GLfloat g = span->specGreen; - GLfloat b = span->specBlue; -#else - GLfixed r = span->specRed; - GLfixed g = span->specGreen; - GLfixed b = span->specBlue; -#endif - GLuint i; - for (i = 0; i < span->end; i++) { - span->array->spec[i][RCOMP] = FixedToChan(r); - span->array->spec[i][GCOMP] = FixedToChan(g); - span->array->spec[i][BCOMP] = FixedToChan(b); - r += span->specRedStep; - g += span->specGreenStep; - b += span->specBlueStep; - } - } - span->arrayMask |= SPAN_SPEC; -} - - -/* Fill in the span.array.fog values from the interpolation values */ -static void -interpolate_fog(const GLcontext *ctx, struct sw_span *span) -{ - GLfloat *fog = span->array->fog; - const GLfloat fogStep = span->fogStep; - GLfloat fogCoord = span->fog; - const GLuint haveW = (span->interpMask & SPAN_W); - const GLfloat wStep = haveW ? span->dwdx : 0.0F; - GLfloat w = haveW ? span->w : 1.0F; - GLuint i; - for (i = 0; i < span->end; i++) { - fog[i] = fogCoord / w; - fogCoord += fogStep; - w += wStep; - } - span->arrayMask |= SPAN_FOG; -} - - -/* Fill in the span.zArray array from the interpolation values */ -void -_swrast_span_interpolate_z( const GLcontext *ctx, struct sw_span *span ) -{ - const GLuint n = span->end; - GLuint i; - - ASSERT((span->interpMask & SPAN_Z) && - !(span->arrayMask & SPAN_Z)); - - if (ctx->Visual.depthBits <= 16) { - GLfixed zval = span->z; - GLdepth *z = span->array->z; - for (i = 0; i < n; i++) { - z[i] = FixedToInt(zval); - zval += span->zStep; - } - } - else { - /* Deep Z buffer, no fixed->int shift */ - GLfixed zval = span->z; - GLdepth *z = span->array->z; - for (i = 0; i < n; i++) { - z[i] = zval; - zval += span->zStep; - } - } - span->interpMask &= ~SPAN_Z; - span->arrayMask |= SPAN_Z; -} - - -/* - * This the ideal solution, as given in the OpenGL spec. - */ -#if 0 -static GLfloat -compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy, - GLfloat dqdx, GLfloat dqdy, GLfloat texW, GLfloat texH, - GLfloat s, GLfloat t, GLfloat q, GLfloat invQ) -{ - GLfloat dudx = texW * ((s + dsdx) / (q + dqdx) - s * invQ); - GLfloat dvdx = texH * ((t + dtdx) / (q + dqdx) - t * invQ); - GLfloat dudy = texW * ((s + dsdy) / (q + dqdy) - s * invQ); - GLfloat dvdy = texH * ((t + dtdy) / (q + dqdy) - t * invQ); - GLfloat x = SQRTF(dudx * dudx + dvdx * dvdx); - GLfloat y = SQRTF(dudy * dudy + dvdy * dvdy); - GLfloat rho = MAX2(x, y); - GLfloat lambda = LOG2(rho); - return lambda; -} -#endif - - -/* - * This is a faster approximation - */ -GLfloat -_swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy, - GLfloat dqdx, GLfloat dqdy, GLfloat texW, GLfloat texH, - GLfloat s, GLfloat t, GLfloat q, GLfloat invQ) -{ - GLfloat dsdx2 = (s + dsdx) / (q + dqdx) - s * invQ; - GLfloat dtdx2 = (t + dtdx) / (q + dqdx) - t * invQ; - GLfloat dsdy2 = (s + dsdy) / (q + dqdy) - s * invQ; - GLfloat dtdy2 = (t + dtdy) / (q + dqdy) - t * invQ; - GLfloat maxU, maxV, rho, lambda; - dsdx2 = FABSF(dsdx2); - dsdy2 = FABSF(dsdy2); - dtdx2 = FABSF(dtdx2); - dtdy2 = FABSF(dtdy2); - maxU = MAX2(dsdx2, dsdy2) * texW; - maxV = MAX2(dtdx2, dtdy2) * texH; - rho = MAX2(maxU, maxV); - lambda = LOG2(rho); - return lambda; -} - - -/** - * Fill in the span.texcoords array from the interpolation values. - * Note: in the places where we divide by Q (or mult by invQ) we're - * really doing two things: perspective correction and texcoord - * projection. Remember, for texcoord (s,t,r,q) we need to index - * texels with (s/q, t/q, r/q). - * If we're using a fragment program, we never do the division - * for texcoord projection. That's done by the TXP instruction - * or user-written code. - */ -static void -interpolate_texcoords(GLcontext *ctx, struct sw_span *span) -{ - ASSERT(span->interpMask & SPAN_TEXTURE); - ASSERT(!(span->arrayMask & SPAN_TEXTURE)); - - if (ctx->Texture._EnabledCoordUnits > 1) { - /* multitexture */ - GLuint u; - span->arrayMask |= SPAN_TEXTURE; - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (ctx->Texture._EnabledCoordUnits & (1 << u)) { - const struct gl_texture_object *obj =ctx->Texture.Unit[u]._Current; - GLfloat texW, texH; - GLboolean needLambda; - if (obj) { - const struct gl_texture_image *img = obj->Image[0][obj->BaseLevel]; - needLambda = (obj->MinFilter != obj->MagFilter) - || ctx->FragmentProgram._Active; - texW = img->WidthScale; - texH = img->HeightScale; - } - else { - /* using a fragment program */ - texW = 1.0; - texH = 1.0; - needLambda = GL_FALSE; - } - if (needLambda) { - GLfloat (*texcoord)[4] = span->array->texcoords[u]; - GLfloat *lambda = span->array->lambda[u]; - const GLfloat dsdx = span->texStepX[u][0]; - const GLfloat dsdy = span->texStepY[u][0]; - const GLfloat dtdx = span->texStepX[u][1]; - const GLfloat dtdy = span->texStepY[u][1]; - const GLfloat drdx = span->texStepX[u][2]; - const GLfloat dqdx = span->texStepX[u][3]; - const GLfloat dqdy = span->texStepY[u][3]; - GLfloat s = span->tex[u][0]; - GLfloat t = span->tex[u][1]; - GLfloat r = span->tex[u][2]; - GLfloat q = span->tex[u][3]; - GLuint i; - if (ctx->FragmentProgram._Active) { - /* do perspective correction but don't divide s, t, r by q */ - const GLfloat dwdx = span->dwdx; - GLfloat w = span->w; - for (i = 0; i < span->end; i++) { - const GLfloat invW = 1.0F / w; - texcoord[i][0] = s * invW; - texcoord[i][1] = t * invW; - texcoord[i][2] = r * invW; - texcoord[i][3] = q * invW; - lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy, - dqdx, dqdy, texW, texH, - s, t, q, invW); - s += dsdx; - t += dtdx; - r += drdx; - q += dqdx; - w += dwdx; - } - - } - else { - for (i = 0; i < span->end; i++) { - const GLfloat invQ = (q == 0.0F) ? 1.0F : (1.0F / q); - texcoord[i][0] = s * invQ; - texcoord[i][1] = t * invQ; - texcoord[i][2] = r * invQ; - texcoord[i][3] = q; - lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy, - dqdx, dqdy, texW, texH, - s, t, q, invQ); - s += dsdx; - t += dtdx; - r += drdx; - q += dqdx; - } - } - span->arrayMask |= SPAN_LAMBDA; - } - else { - GLfloat (*texcoord)[4] = span->array->texcoords[u]; - GLfloat *lambda = span->array->lambda[u]; - const GLfloat dsdx = span->texStepX[u][0]; - const GLfloat dtdx = span->texStepX[u][1]; - const GLfloat drdx = span->texStepX[u][2]; - const GLfloat dqdx = span->texStepX[u][3]; - GLfloat s = span->tex[u][0]; - GLfloat t = span->tex[u][1]; - GLfloat r = span->tex[u][2]; - GLfloat q = span->tex[u][3]; - GLuint i; - if (ctx->FragmentProgram._Active) { - /* do perspective correction but don't divide s, t, r by q */ - const GLfloat dwdx = span->dwdx; - GLfloat w = span->w; - for (i = 0; i < span->end; i++) { - const GLfloat invW = 1.0F / w; - texcoord[i][0] = s * invW; - texcoord[i][1] = t * invW; - texcoord[i][2] = r * invW; - texcoord[i][3] = q * invW; - lambda[i] = 0.0; - s += dsdx; - t += dtdx; - r += drdx; - q += dqdx; - w += dwdx; - } - } - else if (dqdx == 0.0F) { - /* Ortho projection or polygon's parallel to window X axis */ - const GLfloat invQ = (q == 0.0F) ? 1.0F : (1.0F / q); - for (i = 0; i < span->end; i++) { - texcoord[i][0] = s * invQ; - texcoord[i][1] = t * invQ; - texcoord[i][2] = r * invQ; - texcoord[i][3] = q; - lambda[i] = 0.0; - s += dsdx; - t += dtdx; - r += drdx; - } - } - else { - for (i = 0; i < span->end; i++) { - const GLfloat invQ = (q == 0.0F) ? 1.0F : (1.0F / q); - texcoord[i][0] = s * invQ; - texcoord[i][1] = t * invQ; - texcoord[i][2] = r * invQ; - texcoord[i][3] = q; - lambda[i] = 0.0; - s += dsdx; - t += dtdx; - r += drdx; - q += dqdx; - } - } - } /* lambda */ - } /* if */ - } /* for */ - } - else { - /* single texture */ - const struct gl_texture_object *obj = ctx->Texture.Unit[0]._Current; - GLfloat texW, texH; - GLboolean needLambda; - if (obj) { - const struct gl_texture_image *img = obj->Image[0][obj->BaseLevel]; - needLambda = (obj->MinFilter != obj->MagFilter) - || ctx->FragmentProgram._Active; - texW = (GLfloat) img->WidthScale; - texH = (GLfloat) img->HeightScale; - } - else { - needLambda = GL_FALSE; - texW = texH = 1.0; - } - span->arrayMask |= SPAN_TEXTURE; - if (needLambda) { - /* just texture unit 0, with lambda */ - GLfloat (*texcoord)[4] = span->array->texcoords[0]; - GLfloat *lambda = span->array->lambda[0]; - const GLfloat dsdx = span->texStepX[0][0]; - const GLfloat dsdy = span->texStepY[0][0]; - const GLfloat dtdx = span->texStepX[0][1]; - const GLfloat dtdy = span->texStepY[0][1]; - const GLfloat drdx = span->texStepX[0][2]; - const GLfloat dqdx = span->texStepX[0][3]; - const GLfloat dqdy = span->texStepY[0][3]; - GLfloat s = span->tex[0][0]; - GLfloat t = span->tex[0][1]; - GLfloat r = span->tex[0][2]; - GLfloat q = span->tex[0][3]; - GLuint i; - if (ctx->FragmentProgram._Active) { - /* do perspective correction but don't divide s, t, r by q */ - const GLfloat dwdx = span->dwdx; - GLfloat w = span->w; - for (i = 0; i < span->end; i++) { - const GLfloat invW = 1.0F / w; - texcoord[i][0] = s * invW; - texcoord[i][1] = t * invW; - texcoord[i][2] = r * invW; - texcoord[i][3] = q * invW; - lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy, - dqdx, dqdy, texW, texH, - s, t, q, invW); - s += dsdx; - t += dtdx; - r += drdx; - q += dqdx; - w += dwdx; - } - } - else { - /* tex.c */ - for (i = 0; i < span->end; i++) { - const GLfloat invQ = (q == 0.0F) ? 1.0F : (1.0F / q); - lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy, - dqdx, dqdy, texW, texH, - s, t, q, invQ); - texcoord[i][0] = s * invQ; - texcoord[i][1] = t * invQ; - texcoord[i][2] = r * invQ; - texcoord[i][3] = q; - s += dsdx; - t += dtdx; - r += drdx; - q += dqdx; - } - } - span->arrayMask |= SPAN_LAMBDA; - } - else { - /* just texture 0, without lambda */ - GLfloat (*texcoord)[4] = span->array->texcoords[0]; - const GLfloat dsdx = span->texStepX[0][0]; - const GLfloat dtdx = span->texStepX[0][1]; - const GLfloat drdx = span->texStepX[0][2]; - const GLfloat dqdx = span->texStepX[0][3]; - GLfloat s = span->tex[0][0]; - GLfloat t = span->tex[0][1]; - GLfloat r = span->tex[0][2]; - GLfloat q = span->tex[0][3]; - GLuint i; - if (ctx->FragmentProgram._Active) { - /* do perspective correction but don't divide s, t, r by q */ - const GLfloat dwdx = span->dwdx; - GLfloat w = span->w; - for (i = 0; i < span->end; i++) { - const GLfloat invW = 1.0F / w; - texcoord[i][0] = s * invW; - texcoord[i][1] = t * invW; - texcoord[i][2] = r * invW; - texcoord[i][3] = q * invW; - s += dsdx; - t += dtdx; - r += drdx; - q += dqdx; - w += dwdx; - } - } - else if (dqdx == 0.0F) { - /* Ortho projection or polygon's parallel to window X axis */ - const GLfloat invQ = (q == 0.0F) ? 1.0F : (1.0F / q); - for (i = 0; i < span->end; i++) { - texcoord[i][0] = s * invQ; - texcoord[i][1] = t * invQ; - texcoord[i][2] = r * invQ; - texcoord[i][3] = q; - s += dsdx; - t += dtdx; - r += drdx; - } - } - else { - for (i = 0; i < span->end; i++) { - const GLfloat invQ = (q == 0.0F) ? 1.0F : (1.0F / q); - texcoord[i][0] = s * invQ; - texcoord[i][1] = t * invQ; - texcoord[i][2] = r * invQ; - texcoord[i][3] = q; - s += dsdx; - t += dtdx; - r += drdx; - q += dqdx; - } - } - } - } -} - - -/** - * Apply the current polygon stipple pattern to a span of pixels. - */ -static void -stipple_polygon_span( GLcontext *ctx, struct sw_span *span ) -{ - const GLuint highbit = 0x80000000; - const GLuint stipple = ctx->PolygonStipple[span->y % 32]; - GLubyte *mask = span->array->mask; - GLuint i, m; - - ASSERT(ctx->Polygon.StippleFlag); - ASSERT((span->arrayMask & SPAN_XY) == 0); - - m = highbit >> (GLuint) (span->x % 32); - - for (i = 0; i < span->end; i++) { - if ((m & stipple) == 0) { - mask[i] = 0; - } - m = m >> 1; - if (m == 0) { - m = highbit; - } - } - span->writeAll = GL_FALSE; -} - - -/** - * Clip a pixel span to the current buffer/window boundaries: - * DrawBuffer->_Xmin, _Xmax, _Ymin, _Ymax. This will accomplish - * window clipping and scissoring. - * Return: GL_TRUE some pixels still visible - * GL_FALSE nothing visible - */ -static GLuint -clip_span( GLcontext *ctx, struct sw_span *span ) -{ - const GLint xmin = ctx->DrawBuffer->_Xmin; - const GLint xmax = ctx->DrawBuffer->_Xmax; - const GLint ymin = ctx->DrawBuffer->_Ymin; - const GLint ymax = ctx->DrawBuffer->_Ymax; - - if (span->arrayMask & SPAN_XY) { - /* arrays of x/y pixel coords */ - const GLint *x = span->array->x; - const GLint *y = span->array->y; - const GLint n = span->end; - GLubyte *mask = span->array->mask; - GLint i; - if (span->arrayMask & SPAN_MASK) { - /* note: using & intead of && to reduce branches */ - for (i = 0; i < n; i++) { - mask[i] &= (x[i] >= xmin) & (x[i] < xmax) - & (y[i] >= ymin) & (y[i] < ymax); - } - } - else { - /* note: using & intead of && to reduce branches */ - for (i = 0; i < n; i++) { - mask[i] = (x[i] >= xmin) & (x[i] < xmax) - & (y[i] >= ymin) & (y[i] < ymax); - } - } - return GL_TRUE; /* some pixels visible */ - } - else { - /* horizontal span of pixels */ - const GLint x = span->x; - const GLint y = span->y; - const GLint n = span->end; - - /* Trivial rejection tests */ - if (y < ymin || y >= ymax || x + n <= xmin || x >= xmax) { - span->end = 0; - return GL_FALSE; /* all pixels clipped */ - } - - /* Clip to the left */ - if (x < xmin) { - ASSERT(x + n > xmin); - span->writeAll = GL_FALSE; - _mesa_bzero(span->array->mask, (xmin - x) * sizeof(GLubyte)); - } - - /* Clip to right */ - if (x + n > xmax) { - ASSERT(x < xmax); - span->end = xmax - x; - } - - return GL_TRUE; /* some pixels visible */ - } -} - - -/** - * Apply all the per-fragment opertions to a span of color index fragments - * and write them to the enabled color drawbuffers. - * The 'span' parameter can be considered to be const. Note that - * span->interpMask and span->arrayMask may be changed but will be restored - * to their original values before returning. - */ -void -_swrast_write_index_span( GLcontext *ctx, struct sw_span *span) -{ - const SWcontext *swrast = SWRAST_CONTEXT(ctx); - const struct gl_framebuffer *fb = ctx->DrawBuffer; - const GLuint output = 0; - const GLuint origInterpMask = span->interpMask; - const GLuint origArrayMask = span->arrayMask; - GLuint buf; - - ASSERT(span->end <= MAX_WIDTH); - ASSERT(span->primitive == GL_POINT || span->primitive == GL_LINE || - span->primitive == GL_POLYGON || span->primitive == GL_BITMAP); - ASSERT((span->interpMask | span->arrayMask) & SPAN_INDEX); - ASSERT((span->interpMask & span->arrayMask) == 0); - - if (span->arrayMask & SPAN_MASK) { - /* mask was initialized by caller, probably glBitmap */ - span->writeAll = GL_FALSE; - } - else { - _mesa_memset(span->array->mask, 1, span->end); - span->writeAll = GL_TRUE; - } - - /* Clipping */ - if ((swrast->_RasterMask & CLIP_BIT) || (span->primitive != GL_POLYGON)) { - if (!clip_span(ctx, span)) { - return; - } - } - - /* Depth bounds test */ - if (ctx->Depth.BoundsTest && ctx->Visual.depthBits > 0) { - if (!_swrast_depth_bounds_test(ctx, span)) { - return; - } - } - -#ifdef DEBUG - /* Make sure all fragments are within window bounds */ - if (span->arrayMask & SPAN_XY) { - GLuint i; - for (i = 0; i < span->end; i++) { - if (span->array->mask[i]) { - assert(span->array->x[i] >= ctx->DrawBuffer->_Xmin); - assert(span->array->x[i] < ctx->DrawBuffer->_Xmax); - assert(span->array->y[i] >= ctx->DrawBuffer->_Ymin); - assert(span->array->y[i] < ctx->DrawBuffer->_Ymax); - } - } - } -#endif - - /* Polygon Stippling */ - if (ctx->Polygon.StippleFlag && span->primitive == GL_POLYGON) { - stipple_polygon_span(ctx, span); - } - - /* Stencil and Z testing */ - if (ctx->Depth.Test || ctx->Stencil.Enabled) { - if (span->interpMask & SPAN_Z) - _swrast_span_interpolate_z(ctx, span); - - if (ctx->Stencil.Enabled) { - if (!_swrast_stencil_and_ztest_span(ctx, span)) { - span->arrayMask = origArrayMask; - return; - } - } - else { - ASSERT(ctx->Depth.Test); - if (!_swrast_depth_test_span(ctx, span)) { - span->interpMask = origInterpMask; - span->arrayMask = origArrayMask; - return; - } - } - } - - /* if we get here, something passed the depth test */ - if (ctx->Depth.OcclusionTest) { - ctx->OcclusionResult = GL_TRUE; - } - -#if FEATURE_ARB_occlusion_query - if (ctx->Occlusion.Active) { - /* update count of 'passed' fragments */ - GLuint i; - for (i = 0; i < span->end; i++) - ctx->Occlusion.PassedCounter += span->array->mask[i]; - } -#endif - - /* we have to wait until after occlusion to do this test */ - if (ctx->Color.DrawBuffer == GL_NONE || ctx->Color.IndexMask == 0) { - /* write no pixels */ - span->arrayMask = origArrayMask; - return; - } - - /* Interpolate the color indexes if needed */ - if (swrast->_FogEnabled || - ctx->Color.IndexLogicOpEnabled || - ctx->Color.IndexMask != 0xffffffff || - (span->arrayMask & SPAN_COVERAGE)) { - if (span->interpMask & SPAN_INDEX) { - interpolate_indexes(ctx, span); - } - } - - /* Fog */ - if (swrast->_FogEnabled) { - _swrast_fog_ci_span(ctx, span); - } - - /* Antialias coverage application */ - if (span->arrayMask & SPAN_COVERAGE) { - const GLfloat *coverage = span->array->coverage; - GLuint *index = span->array->index; - GLuint i; - for (i = 0; i < span->end; i++) { - ASSERT(coverage[i] < 16); - index[i] = (index[i] & ~0xf) | ((GLuint) coverage[i]); - } - } - - /* Loop over drawing buffers */ - for (buf = 0; buf < fb->_NumColorDrawBuffers[output]; buf++) { - struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[output][buf]; - GLuint indexTemp[MAX_WIDTH], *index32; - - ASSERT(rb->_BaseFormat == GL_COLOR_INDEX); - - if (ctx->Color.IndexLogicOpEnabled || - ctx->Color.IndexMask != 0xffffffff) { - /* make copy of incoming indexes */ - MEMCPY(indexTemp, span->array->index, span->end * sizeof(GLuint)); - - if (ctx->Color.IndexLogicOpEnabled) { - _swrast_logicop_ci_span(ctx, rb, span, indexTemp); - } - - if (ctx->Color.IndexMask != 0xffffffff) { - _swrast_mask_ci_span(ctx, rb, span, indexTemp); - } - index32 = indexTemp; - } - else { - index32 = span->array->index; - } - - if ((span->interpMask & SPAN_INDEX) && span->indexStep == 0) { - /* all fragments have same color index */ - GLubyte index8; - GLushort index16; - GLuint index32; - void *value; - - if (rb->DataType == GL_UNSIGNED_BYTE) { - index8 = FixedToInt(span->index); - value = &index8; - } - else if (rb->DataType == GL_UNSIGNED_SHORT) { - index16 = FixedToInt(span->index); - value = &index16; - } - else { - ASSERT(rb->DataType == GL_UNSIGNED_INT); - index32 = FixedToInt(span->index); - value = &index32; - } - - if (span->arrayMask & SPAN_XY) { - rb->PutMonoValues(ctx, rb, span->end, span->array->x, - span->array->y, value, span->array->mask); - } - else { - rb->PutMonoRow(ctx, rb, span->end, span->x, span->y, - value, span->array->mask); - } - } - else { - /* each fragment is a different color */ - GLubyte index8[MAX_WIDTH]; - GLushort index16[MAX_WIDTH]; - void *values; - - if (rb->DataType == GL_UNSIGNED_BYTE) { - GLuint k; - for (k = 0; k < span->end; k++) { - index8[k] = (GLubyte) index32[k]; - } - values = index8; - } - else if (rb->DataType == GL_UNSIGNED_SHORT) { - GLuint k; - for (k = 0; k < span->end; k++) { - index16[k] = (GLushort) index32[k]; - } - values = index16; - } - else { - ASSERT(rb->DataType == GL_UNSIGNED_INT); - values = index32; - } - - if (span->arrayMask & SPAN_XY) { - rb->PutValues(ctx, rb, span->end, span->array->x, span->array->y, - values, span->array->mask); - } - else { - rb->PutRow(ctx, rb, span->end, span->x, span->y, - values, span->array->mask); - } - } - } - -#if OLD_RENDERBUFFER - /* restore default dest buffer */ - _swrast_use_draw_buffer(ctx); -#endif - - span->interpMask = origInterpMask; - span->arrayMask = origArrayMask; -} - - -/** - * Add specular color to base color. This is used only when - * GL_LIGHT_MODEL_COLOR_CONTROL = GL_SEPARATE_SPECULAR_COLOR. - */ -static void -add_colors(GLuint n, GLchan rgba[][4], GLchan specular[][4] ) -{ - GLuint i; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - /* no clamping */ - rgba[i][RCOMP] += specular[i][RCOMP]; - rgba[i][GCOMP] += specular[i][GCOMP]; - rgba[i][BCOMP] += specular[i][BCOMP]; -#else - GLint r = rgba[i][RCOMP] + specular[i][RCOMP]; - GLint g = rgba[i][GCOMP] + specular[i][GCOMP]; - GLint b = rgba[i][BCOMP] + specular[i][BCOMP]; - rgba[i][RCOMP] = (GLchan) MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) MIN2(b, CHAN_MAX); -#endif - } -} - - -/** - * XXX merge this code into the _swrast_write_rgba_span() routine! - * - * Draw to more than one RGBA color buffer (or none). - * All fragment operations, up to (but not) blending/logicop should - * have been done first. - */ -static void -multi_write_rgba_span( GLcontext *ctx, struct sw_span *span ) -{ -#if OLD_RENDERBUFFER - SWcontext *swrast = SWRAST_CONTEXT(ctx); -#endif - const GLuint colorMask = *((GLuint *) ctx->Color.ColorMask); - struct gl_framebuffer *fb = ctx->DrawBuffer; - const GLuint output = 0; - GLuint i; - - ASSERT(span->end < MAX_WIDTH); - ASSERT(colorMask != 0x0); - - for (i = 0; i < fb->_NumColorDrawBuffers[output]; i++) { - struct gl_renderbuffer *rb = fb->_ColorDrawBuffers[output][i]; - GLchan rgbaTmp[MAX_WIDTH][4]; - -#if OLD_RENDERBUFFER - /* obsolete code */ - GLuint bufferBit = fb->_ColorDrawBit[output][i]; - /* Set the current read/draw buffer */ - swrast->CurrentBufferBit = bufferBit; - if (swrast->Driver.SetBuffer) - (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, bufferBit); -#endif - - /* make copy of incoming colors */ - MEMCPY( rgbaTmp, span->array->rgba, 4 * span->end * sizeof(GLchan) ); - - if (ctx->Color._LogicOpEnabled) { - _swrast_logicop_rgba_span(ctx, rb, span, rgbaTmp); - } - else if (ctx->Color.BlendEnabled) { - _swrast_blend_span(ctx, rb, span, rgbaTmp); - } - - if (colorMask != 0xffffffff) { - _swrast_mask_rgba_span(ctx, rb, span, rgbaTmp); - } - - if (span->arrayMask & SPAN_XY) { - /* array of pixel coords */ - ASSERT(rb->PutValues); - rb->PutValues(ctx, rb, span->end, span->array->x, - span->array->y, rgbaTmp, span->array->mask); - } - else { - /* horizontal run of pixels */ - ASSERT(rb->PutRow); - rb->PutRow(ctx, rb, span->end, span->x, span->y, rgbaTmp, - span->array->mask); - } - } - -#if OLD_RENDERBUFFER - /* restore default dest buffer */ - _swrast_use_draw_buffer(ctx); -#endif -} - - -/** - * Apply all the per-fragment operations to a span. - * This now includes texturing (_swrast_write_texture_span() is history). - * This function may modify any of the array values in the span. - * span->interpMask and span->arrayMask may be changed but will be restored - * to their original values before returning. - */ -void -_swrast_write_rgba_span( GLcontext *ctx, struct sw_span *span) -{ - const GLuint colorMask = *((GLuint *) ctx->Color.ColorMask); - SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLuint origInterpMask = span->interpMask; - const GLuint origArrayMask = span->arrayMask; - const GLboolean deferredTexture = !(ctx->Color.AlphaEnabled || - ctx->FragmentProgram._Active || - ctx->ATIFragmentShader._Enabled); - - ASSERT(span->primitive == GL_POINT || span->primitive == GL_LINE || - span->primitive == GL_POLYGON || span->primitive == GL_BITMAP); - ASSERT(span->end <= MAX_WIDTH); - ASSERT((span->interpMask & span->arrayMask) == 0); - - /* - printf("%s() interp 0x%x array 0x%x\n", __FUNCTION__, - span->interpMask, span->arrayMask); - */ - - if (span->arrayMask & SPAN_MASK) { - /* mask was initialized by caller, probably glBitmap */ - span->writeAll = GL_FALSE; - } - else { - _mesa_memset(span->array->mask, 1, span->end); - span->writeAll = GL_TRUE; - } - - /* Clip to window/scissor box */ - if ((swrast->_RasterMask & CLIP_BIT) || (span->primitive != GL_POLYGON)) { - if (!clip_span(ctx, span)) { - return; - } - } - -#ifdef DEBUG - /* Make sure all fragments are within window bounds */ - if (span->arrayMask & SPAN_XY) { - GLuint i; - for (i = 0; i < span->end; i++) { - if (span->array->mask[i]) { - assert(span->array->x[i] >= ctx->DrawBuffer->_Xmin); - assert(span->array->x[i] < ctx->DrawBuffer->_Xmax); - assert(span->array->y[i] >= ctx->DrawBuffer->_Ymin); - assert(span->array->y[i] < ctx->DrawBuffer->_Ymax); - } - } - } -#endif - - /* Polygon Stippling */ - if (ctx->Polygon.StippleFlag && span->primitive == GL_POLYGON) { - stipple_polygon_span(ctx, span); - } - - /* Interpolate texcoords? */ - if (ctx->Texture._EnabledCoordUnits - && (span->interpMask & SPAN_TEXTURE) - && (span->arrayMask & SPAN_TEXTURE) == 0) { - interpolate_texcoords(ctx, span); - } - - /* This is the normal place to compute the resulting fragment color/Z. - * As an optimization, we try to defer this until after Z/stencil - * testing in order to try to avoid computing colors that we won't - * actually need. - */ - if (!deferredTexture) { - /* Now we need the rgba array, fill it in if needed */ - if ((span->interpMask & SPAN_RGBA) && (span->arrayMask & SPAN_RGBA) == 0) - interpolate_colors(ctx, span); - - if (span->interpMask & SPAN_SPEC) - interpolate_specular(ctx, span); - - if (span->interpMask & SPAN_FOG) - interpolate_fog(ctx, span); - - /* Compute fragment colors with fragment program or texture lookups */ - if (ctx->FragmentProgram._Active) { - /* frag prog may need Z values */ - if (span->interpMask & SPAN_Z) - _swrast_span_interpolate_z(ctx, span); - _swrast_exec_fragment_program( ctx, span ); - } - else if (ctx->ATIFragmentShader._Enabled) - _swrast_exec_fragment_shader( ctx, span ); - else if (ctx->Texture._EnabledUnits && (span->arrayMask & SPAN_TEXTURE)) - _swrast_texture_span( ctx, span ); - - /* Do the alpha test */ - if (!_swrast_alpha_test(ctx, span)) { - span->arrayMask = origArrayMask; - return; - } - } - - /* Stencil and Z testing */ - if (ctx->Stencil.Enabled || ctx->Depth.Test) { - if (span->interpMask & SPAN_Z) - _swrast_span_interpolate_z(ctx, span); - - if (ctx->Stencil.Enabled && ctx->DrawBuffer->Visual.stencilBits > 0) { - /* Combined Z/stencil tests */ - if (!_swrast_stencil_and_ztest_span(ctx, span)) { - span->interpMask = origInterpMask; - span->arrayMask = origArrayMask; - return; - } - } - else if (ctx->DrawBuffer->Visual.depthBits > 0) { - /* Just regular depth testing */ - ASSERT(ctx->Depth.Test); - ASSERT(span->arrayMask & SPAN_Z); - if (!_swrast_depth_test_span(ctx, span)) { - span->interpMask = origInterpMask; - span->arrayMask = origArrayMask; - return; - } - } - } - - /* if we get here, some fragments passed the depth test */ - if (ctx->Depth.OcclusionTest) { - ctx->OcclusionResult = GL_TRUE; - } - -#if FEATURE_ARB_occlusion_query - if (ctx->Occlusion.Active) { - /* update count of 'passed' fragments */ - GLuint i; - for (i = 0; i < span->end; i++) - ctx->Occlusion.PassedCounter += span->array->mask[i]; - } -#endif - - /* We had to wait until now to check for glColorMask(0,0,0,0) because of - * the occlusion test. - */ - if (colorMask == 0x0) { - span->interpMask = origInterpMask; - span->arrayMask = origArrayMask; - return; - } - - /* If we were able to defer fragment color computation to now, there's - * a good chance that many fragments will have already been killed by - * Z/stencil testing. - */ - if (deferredTexture) { - /* Now we need the rgba array, fill it in if needed */ - if ((span->interpMask & SPAN_RGBA) && (span->arrayMask & SPAN_RGBA) == 0) - interpolate_colors(ctx, span); - - if (span->interpMask & SPAN_SPEC) - interpolate_specular(ctx, span); - - if (span->interpMask & SPAN_FOG) - interpolate_fog(ctx, span); - - if (ctx->FragmentProgram._Active) - _swrast_exec_fragment_program( ctx, span ); - else if (ctx->ATIFragmentShader._Enabled) - _swrast_exec_fragment_shader( ctx, span ); - else if (ctx->Texture._EnabledUnits && (span->arrayMask & SPAN_TEXTURE)) - _swrast_texture_span( ctx, span ); - } - - ASSERT(span->arrayMask & SPAN_RGBA); - - if (!ctx->FragmentProgram._Enabled) { - /* Add base and specular colors */ - if (ctx->Fog.ColorSumEnabled || - (ctx->Light.Enabled && - ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)) { - if (span->interpMask & SPAN_SPEC) { - interpolate_specular(ctx, span); - } - if (span->arrayMask & SPAN_SPEC) { - add_colors( span->end, span->array->rgba, span->array->spec ); - } - else { - /* We probably added the base/specular colors during the - * vertex stage! - */ - } - } - } - - /* Fog */ - if (swrast->_FogEnabled) { - _swrast_fog_rgba_span(ctx, span); - } - - /* Antialias coverage application */ - if (span->arrayMask & SPAN_COVERAGE) { - GLchan (*rgba)[4] = span->array->rgba; - GLfloat *coverage = span->array->coverage; - GLuint i; - for (i = 0; i < span->end; i++) { - rgba[i][ACOMP] = (GLchan) (rgba[i][ACOMP] * coverage[i]); - } - } - - if (swrast->_RasterMask & MULTI_DRAW_BIT) { - /* need to do blend/logicop separately for each color buffer */ - multi_write_rgba_span(ctx, span); - } - else { - /* normal: write to exactly one buffer */ - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0][0]; - - if (ctx->Color._LogicOpEnabled) { - _swrast_logicop_rgba_span(ctx, rb, span, span->array->rgba); - } - else if (ctx->Color.BlendEnabled) { - _swrast_blend_span(ctx, rb, span, span->array->rgba); - } - - /* Color component masking */ - if (colorMask != 0xffffffff) { - _swrast_mask_rgba_span(ctx, rb, span, span->array->rgba); - } - - /* Finally, write the pixels to a color buffer */ - if (span->arrayMask & SPAN_XY) { - /* array of pixel coords */ - ASSERT(rb->PutValues); - ASSERT(rb->_BaseFormat == GL_RGB || rb->_BaseFormat == GL_RGBA); - /* XXX check datatype */ - rb->PutValues(ctx, rb, span->end, span->array->x, span->array->y, - span->array->rgba, span->array->mask); - } - else { - /* horizontal run of pixels */ - ASSERT(rb->PutRow); - ASSERT(rb->_BaseFormat == GL_RGB || rb->_BaseFormat == GL_RGBA); - /* XXX check datatype */ - rb->PutRow(ctx, rb, span->end, span->x, span->y, span->array->rgba, - span->writeAll ? NULL : span->array->mask); - } - } - - span->interpMask = origInterpMask; - span->arrayMask = origArrayMask; -} - - - -/** - * Read RGBA pixels from frame buffer. Clipping will be done to prevent - * reading ouside the buffer's boundaries. - */ -void -_swrast_read_rgba_span( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLchan rgba[][4] ) -{ - const GLint bufWidth = (GLint) rb->Width; - const GLint bufHeight = (GLint) rb->Height; - - if (y < 0 || y >= bufHeight || x + (GLint) n < 0 || x >= bufWidth) { - /* completely above, below, or right */ - /* XXX maybe leave rgba values undefined? */ - _mesa_bzero(rgba, 4 * n * sizeof(GLchan)); - } - else { - GLint skip, length; - if (x < 0) { - /* left edge clipping */ - skip = -x; - length = (GLint) n - skip; - if (length < 0) { - /* completely left of window */ - return; - } - if (length > bufWidth) { - length = bufWidth; - } - } - else if ((GLint) (x + n) > bufWidth) { - /* right edge clipping */ - skip = 0; - length = bufWidth - x; - if (length < 0) { - /* completely to right of window */ - return; - } - } - else { - /* no clipping */ - skip = 0; - length = (GLint) n; - } - - ASSERT(rb); - ASSERT(rb->GetRow); - ASSERT(rb->_BaseFormat == GL_RGB || rb->_BaseFormat == GL_RGBA); - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - rb->GetRow(ctx, rb, length, x + skip, y, rgba + skip); - } -} - - -/** - * Read CI pixels from frame buffer. Clipping will be done to prevent - * reading ouside the buffer's boundaries. - */ -void -_swrast_read_index_span( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLuint index[] ) -{ - const GLint bufWidth = (GLint) rb->Width; - const GLint bufHeight = (GLint) rb->Height; - - if (y < 0 || y >= bufHeight || x + (GLint) n < 0 || x >= bufWidth) { - /* completely above, below, or right */ - _mesa_bzero(index, n * sizeof(GLuint)); - } - else { - GLint skip, length; - if (x < 0) { - /* left edge clipping */ - skip = -x; - length = (GLint) n - skip; - if (length < 0) { - /* completely left of window */ - return; - } - if (length > bufWidth) { - length = bufWidth; - } - } - else if ((GLint) (x + n) > bufWidth) { - /* right edge clipping */ - skip = 0; - length = bufWidth - x; - if (length < 0) { - /* completely to right of window */ - return; - } - } - else { - /* no clipping */ - skip = 0; - length = (GLint) n; - } - - ASSERT(rb->GetRow); - ASSERT(rb->_BaseFormat == GL_COLOR_INDEX); - - if (rb->DataType == GL_UNSIGNED_BYTE) { - GLubyte index8[MAX_WIDTH]; - GLint i; - rb->GetRow(ctx, rb, length, x + skip, y, index8); - for (i = 0; i < length; i++) - index[skip + i] = index8[i]; - } - else if (rb->DataType == GL_UNSIGNED_SHORT) { - GLushort index16[MAX_WIDTH]; - GLint i; - rb->GetRow(ctx, rb, length, x + skip, y, index16); - for (i = 0; i < length; i++) - index[skip + i] = index16[i]; - } - else if (rb->DataType == GL_UNSIGNED_INT) { - rb->GetRow(ctx, rb, length, x + skip, y, index + skip); - } - } -} - - -/** - * Wrapper for gl_renderbuffer::GetValues() which does clipping to avoid - * reading values outside the buffer bounds. - * We can use this for reading any format/type of renderbuffer. - * \param valueSize is the size in bytes of each value put into the - * values array. - */ -void -_swrast_get_values(GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - void *values, GLuint valueSize) -{ - GLuint i, inCount = 0, inStart = 0; - - for (i = 0; i < count; i++) { - if (x[i] >= 0 && y[i] >= 0 && x[i] < rb->Width && y[i] < rb->Height) { - /* inside */ - if (inCount == 0) - inStart = i; - inCount++; - } - else { - if (inCount > 0) { - /* read [inStart, inStart + inCount) */ - rb->GetValues(ctx, rb, inCount, x + inStart, y + inStart, - (GLubyte *) values + inStart * valueSize); - inCount = 0; - } - } - } - if (inCount > 0) { - /* read last values */ - rb->GetValues(ctx, rb, inCount, x + inStart, y + inStart, - (GLubyte *) values + inStart * valueSize); - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_span.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_span.h deleted file mode 100644 index 1bba5aa53..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_span.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_SPAN_H -#define S_SPAN_H - - -#include "mtypes.h" -#include "swrast.h" - - -extern void -_swrast_span_default_z( GLcontext *ctx, struct sw_span *span ); - -extern void -_swrast_span_interpolate_z( const GLcontext *ctx, struct sw_span *span ); - -extern void -_swrast_span_default_fog( GLcontext *ctx, struct sw_span *span ); - -extern void -_swrast_span_default_color( GLcontext *ctx, struct sw_span *span ); - -extern void -_swrast_span_default_texcoords( GLcontext *ctx, struct sw_span *span ); - -extern GLfloat -_swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy, - GLfloat dqdx, GLfloat dqdy, GLfloat texW, GLfloat texH, - GLfloat s, GLfloat t, GLfloat q, GLfloat invQ); - -extern void -_swrast_write_index_span( GLcontext *ctx, struct sw_span *span); - - -extern void -_swrast_write_rgba_span( GLcontext *ctx, struct sw_span *span); - - -extern void -_swrast_read_rgba_span( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLchan rgba[][4] ); - -extern void -_swrast_read_index_span( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, GLuint indx[] ); - -extern void -_swrast_get_values(GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - void *values, GLuint valueSize); - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_spantemp.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_spantemp.h deleted file mode 100644 index 4ccf031cb..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_spantemp.h +++ /dev/null @@ -1,251 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * Templates for the span/pixel-array write/read functions called via - * the gl_renderbuffer's GetRow, GetValues, PutRow, PutMonoRow, PutValues - * and PutMonoValues functions. - * - * Define the following macros before including this file: - * NAME(PREFIX) to generate the function name - * FORMAT must be either GL_RGBA, GL_RGBA8 or GL_COLOR_INDEX8_EXT - * SPAN_VARS to declare any local variables - * INIT_PIXEL_PTR(P, X, Y) to initialize a pointer to a pixel - * INC_PIXEL_PTR(P) to increment a pixel pointer by one pixel - * STORE_PIXEL(DST, X, Y, VALUE) to store pixel values in buffer - * FETCH_PIXEL(DST, SRC) to fetch pixel values from buffer - * - * Note that in the STORE_PIXEL macros, we also pass in the (X,Y) coordinates - * for the pixels to be stored. This is useful when dithering and probably - * ignored otherwise. - */ - -#include "macros.h" - - -static void -NAME(get_row)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, void *values ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif -#if FORMAT == GL_RGBA - GLchan (*dest)[4] = (GLchan (*)[4]) values; -#elif FORMAT == GL_RGBA8 - GLubyte (*dest)[4] = (GLubyte (*)[4]) values; -#elif FORMAT == GL_COLOR_INDEX8_EXT - GLubyte *dest = (GLubyte *) values; -#else -#error FORMAT must be set!!!! -#endif - GLuint i; - INIT_PIXEL_PTR(pixel, x, y); - for (i = 0; i < count; i++) { - FETCH_PIXEL(dest[i], pixel); - INC_PIXEL_PTR(pixel); - } -} - -static void -NAME(get_values)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], void *values ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif -#if FORMAT == GL_RGBA - GLchan (*dest)[4] = (GLchan (*)[4]) values; -#elif FORMAT == GL_RGBA8 - GLubyte (*dest)[4] = (GLubyte (*)[4]) values; -#elif FORMAT == GL_COLOR_INDEX8_EXT - GLubyte *dest = (GLubyte *) values; -#endif - GLuint i; - for (i = 0; i < count; i++) { - INIT_PIXEL_PTR(pixel, x[i], y[i]); - FETCH_PIXEL(dest[i], pixel); - } -} - - -static void -NAME(put_row)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, - const void *values, const GLubyte mask[] ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif -#if FORMAT == GL_RGBA - const GLchan (*src)[4] = (const GLchan (*)[4]) values; -#elif FORMAT == GL_RGBA8 - const GLubyte (*src)[4] = (const GLubyte (*)[4]) values; -#elif FORMAT == GL_COLOR_INDEX8_EXT - const GLubyte (*src)[1] = (const GLubyte (*)[1]) values; -#endif - GLuint i; - INIT_PIXEL_PTR(pixel, x, y); - if (mask) { - for (i = 0; i < count; i++) { - if (mask[i]) { - STORE_PIXEL(pixel, x + i, y, src[i]); - } - INC_PIXEL_PTR(pixel); - } - } - else { - for (i = 0; i < count; i++) { - STORE_PIXEL(pixel, x + i, y, src[i]); - INC_PIXEL_PTR(pixel); - } - } -} - -#if (FORMAT == GL_RGBA) || (FORMAT == GL_RGBA8) -static void -NAME(put_row_rgb)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, - const void *values, const GLubyte mask[] ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif -#if FORMAT == GL_RGBA - const GLchan (*src)[3] = (const GLchan (*)[3]) values; -#elif FORMAT == GL_RGBA8 - const GLubyte (*src)[3] = (const GLubyte (*)[3]) values; -#else -#error bad format -#endif - GLuint i; - INIT_PIXEL_PTR(pixel, x, y); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { -#ifdef STORE_PIXEL_RGB - STORE_PIXEL_RGB(pixel, x + i, y, src[i]); -#else - STORE_PIXEL(pixel, x + i, y, src[i]); -#endif - } - INC_PIXEL_PTR(pixel); - } -} -#endif - -static void -NAME(put_mono_row)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, - const void *value, const GLubyte mask[] ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif -#if FORMAT == GL_RGBA - const GLchan *src = (const GLchan *) value; -#elif FORMAT == GL_RGBA8 - const GLubyte *src = (const GLubyte *) value; -#elif FORMAT == GL_COLOR_INDEX8_EXT - const GLubyte *src = (const GLubyte *) value; -#endif - GLuint i; - INIT_PIXEL_PTR(pixel, x, y); - if (mask) { - for (i = 0; i < count; i++) { - if (mask[i]) { - STORE_PIXEL(pixel, x + i, y, src); - } - INC_PIXEL_PTR(pixel); - } - } - else { - for (i = 0; i < count; i++) { - STORE_PIXEL(pixel, x + i, y, src); - INC_PIXEL_PTR(pixel); - } - } -} - - -static void -NAME(put_values)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - const void *values, const GLubyte mask[] ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif -#if FORMAT == GL_RGBA - const GLchan (*src)[4] = (const GLchan (*)[4]) values; -#elif FORMAT == GL_RGBA8 - const GLubyte (*src)[4] = (const GLubyte (*)[4]) values; -#elif FORMAT == GL_COLOR_INDEX8_EXT - const GLubyte (*src)[1] = (const GLubyte (*)[1]) values; -#endif - GLuint i; - ASSERT(mask); - for (i = 0; i < count; i++) { - if (mask[i]) { - INIT_PIXEL_PTR(pixel, x[i], y[i]); - STORE_PIXEL(pixel, x[i], y[i], src[i]); - } - } -} - - -static void -NAME(put_mono_values)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - const void *value, const GLubyte mask[] ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif -#if FORMAT == GL_RGBA - const GLchan *src = (const GLchan *) value; -#elif FORMAT == GL_RGBA8 - const GLubyte *src = (const GLubyte *) value; -#elif FORMAT == GL_COLOR_INDEX8_EXT - const GLubyte *src = (const GLubyte *) value; -#endif - GLuint i; - ASSERT(mask); - for (i = 0; i < count; i++) { - if (mask[i]) { - INIT_PIXEL_PTR(pixel, x[i], y[i]); - STORE_PIXEL(pixel, x[i], y[i], src); - } - } -} - - -#undef NAME -#undef SPAN_VARS -#undef INIT_PIXEL_PTR -#undef INC_PIXEL_PTR -#undef STORE_PIXEL -#undef STORE_PIXEL_RGB -#undef FETCH_PIXEL -#undef FORMAT diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_stencil.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_stencil.c deleted file mode 100644 index 98638b244..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_stencil.c +++ /dev/null @@ -1,1221 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.4.1 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "macros.h" -#include "imports.h" -#include "fbobject.h" - -#include "s_context.h" -#include "s_depth.h" -#include "s_stencil.h" -#include "s_span.h" - - - -/* Stencil Logic: - -IF stencil test fails THEN - Apply fail-op to stencil value - Don't write the pixel (RGBA,Z) -ELSE - IF doing depth test && depth test fails THEN - Apply zfail-op to stencil value - Write RGBA and Z to appropriate buffers - ELSE - Apply zpass-op to stencil value -ENDIF - -*/ - - -/** - * Apply the given stencil operator to the array of stencil values. - * Don't touch stencil[i] if mask[i] is zero. - * Input: n - size of stencil array - * oper - the stencil buffer operator - * face - 0 or 1 for front or back face operation - * stencil - array of stencil values - * mask - array [n] of flag: 1=apply operator, 0=don't apply operator - * Output: stencil - modified values - */ -static void -apply_stencil_op( const GLcontext *ctx, GLenum oper, GLuint face, - GLuint n, GLstencil stencil[], const GLubyte mask[] ) -{ - const GLstencil ref = ctx->Stencil.Ref[face]; - const GLstencil wrtmask = ctx->Stencil.WriteMask[face]; - const GLstencil invmask = (GLstencil) (~wrtmask); - GLuint i; - - switch (oper) { - case GL_KEEP: - /* do nothing */ - break; - case GL_ZERO: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - stencil[i] = 0; - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - stencil[i] = (GLstencil) (stencil[i] & invmask); - } - } - } - break; - case GL_REPLACE: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - stencil[i] = ref; - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil s = stencil[i]; - stencil[i] = (GLstencil) ((invmask & s ) | (wrtmask & ref)); - } - } - } - break; - case GL_INCR: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil s = stencil[i]; - if (s < STENCIL_MAX) { - stencil[i] = (GLstencil) (s+1); - } - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - /* VERIFY logic of adding 1 to a write-masked value */ - GLstencil s = stencil[i]; - if (s < STENCIL_MAX) { - stencil[i] = (GLstencil) ((invmask & s) | (wrtmask & (s+1))); - } - } - } - } - break; - case GL_DECR: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil s = stencil[i]; - if (s>0) { - stencil[i] = (GLstencil) (s-1); - } - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - /* VERIFY logic of subtracting 1 to a write-masked value */ - GLstencil s = stencil[i]; - if (s>0) { - stencil[i] = (GLstencil) ((invmask & s) | (wrtmask & (s-1))); - } - } - } - } - break; - case GL_INCR_WRAP_EXT: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - stencil[i]++; - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil s = stencil[i]; - stencil[i] = (GLstencil) ((invmask & s) | (wrtmask & (s+1))); - } - } - } - break; - case GL_DECR_WRAP_EXT: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - stencil[i]--; - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil s = stencil[i]; - stencil[i] = (GLstencil) ((invmask & s) | (wrtmask & (s-1))); - } - } - } - break; - case GL_INVERT: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil s = stencil[i]; - stencil[i] = (GLstencil) ~s; - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil s = stencil[i]; - stencil[i] = (GLstencil) ((invmask & s) | (wrtmask & ~s)); - } - } - } - break; - default: - _mesa_problem(ctx, "Bad stencil op in apply_stencil_op"); - } -} - - - - -/** - * Apply stencil test to an array of stencil values (before depth buffering). - * Input: face - 0 or 1 for front or back-face polygons - * n - number of pixels in the array - * stencil - array of [n] stencil values - * mask - array [n] of flag: 0=skip the pixel, 1=stencil the pixel - * Output: mask - pixels which fail the stencil test will have their - * mask flag set to 0. - * stencil - updated stencil values (where the test passed) - * Return: GL_FALSE = all pixels failed, GL_TRUE = zero or more pixels passed. - */ -static GLboolean -do_stencil_test( GLcontext *ctx, GLuint face, GLuint n, GLstencil stencil[], - GLubyte mask[] ) -{ - GLubyte fail[MAX_WIDTH]; - GLboolean allfail = GL_FALSE; - GLuint i; - GLstencil r, s; - const GLuint valueMask = ctx->Stencil.ValueMask[face]; - - ASSERT(n <= MAX_WIDTH); - - /* - * Perform stencil test. The results of this operation are stored - * in the fail[] array: - * IF fail[i] is non-zero THEN - * the stencil fail operator is to be applied - * ELSE - * the stencil fail operator is not to be applied - * ENDIF - */ - switch (ctx->Stencil.Function[face]) { - case GL_NEVER: - /* never pass; always fail */ - for (i=0;i<n;i++) { - if (mask[i]) { - mask[i] = 0; - fail[i] = 1; - } - else { - fail[i] = 0; - } - } - allfail = GL_TRUE; - break; - case GL_LESS: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - s = (GLstencil) (stencil[i] & valueMask); - if (r < s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_LEQUAL: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - s = (GLstencil) (stencil[i] & valueMask); - if (r <= s) { - /* pass */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_GREATER: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - s = (GLstencil) (stencil[i] & valueMask); - if (r > s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_GEQUAL: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - s = (GLstencil) (stencil[i] & valueMask); - if (r >= s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_EQUAL: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - s = (GLstencil) (stencil[i] & valueMask); - if (r == s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_NOTEQUAL: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - s = (GLstencil) (stencil[i] & valueMask); - if (r != s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_ALWAYS: - /* always pass */ - for (i=0;i<n;i++) { - fail[i] = 0; - } - break; - default: - _mesa_problem(ctx, "Bad stencil func in gl_stencil_span"); - return 0; - } - - if (ctx->Stencil.FailFunc[face] != GL_KEEP) { - apply_stencil_op( ctx, ctx->Stencil.FailFunc[face], face, n, stencil, fail ); - } - - return !allfail; -} - - - -/** - * Apply stencil and depth testing to the span of pixels. - * Both software and hardware stencil buffers are acceptable. - * Input: n - number of pixels in the span - * x, y - location of leftmost pixel in span - * z - array [n] of z values - * mask - array [n] of flags (1=test this pixel, 0=skip the pixel) - * Output: mask - array [n] of flags (1=stencil and depth test passed) - * Return: GL_FALSE - all fragments failed the testing - * GL_TRUE - one or more fragments passed the testing - * - */ -static GLboolean -stencil_and_ztest_span(GLcontext *ctx, struct sw_span *span, GLuint face) -{ - struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *rb = fb->Attachment[BUFFER_STENCIL].Renderbuffer; - GLstencil stencilRow[MAX_WIDTH]; - GLstencil *stencil; - const GLuint n = span->end; - const GLint x = span->x; - const GLint y = span->y; - GLubyte *mask = span->array->mask; - - ASSERT((span->arrayMask & SPAN_XY) == 0); - ASSERT(ctx->Stencil.Enabled); - ASSERT(n <= MAX_WIDTH); -#ifdef DEBUG - if (ctx->Depth.Test) { - ASSERT(span->arrayMask & SPAN_Z); - } -#endif - - stencil = rb->GetPointer(ctx, rb, x, y); - if (!stencil) { - rb->GetRow(ctx, rb, n, x, y, stencilRow); - stencil = stencilRow; - } - - /* - * Apply the stencil test to the fragments. - * failMask[i] is 1 if the stencil test failed. - */ - if (do_stencil_test( ctx, face, n, stencil, mask ) == GL_FALSE) { - /* all fragments failed the stencil test, we're done. */ - span->writeAll = GL_FALSE; - if (!rb->GetPointer(ctx, rb, 0, 0)) { - /* put updated stencil values into buffer */ - rb->PutRow(ctx, rb, n, x, y, stencil, NULL); - } - return GL_FALSE; - } - - /* - * Some fragments passed the stencil test, apply depth test to them - * and apply Zpass and Zfail stencil ops. - */ - if (ctx->Depth.Test == GL_FALSE) { - /* - * No depth buffer, just apply zpass stencil function to active pixels. - */ - apply_stencil_op( ctx, ctx->Stencil.ZPassFunc[face], face, n, stencil, mask ); - } - else { - /* - * Perform depth buffering, then apply zpass or zfail stencil function. - */ - GLubyte passmask[MAX_WIDTH], failmask[MAX_WIDTH], oldmask[MAX_WIDTH]; - GLuint i; - - /* save the current mask bits */ - _mesa_memcpy(oldmask, mask, n * sizeof(GLubyte)); - - /* apply the depth test */ - _swrast_depth_test_span(ctx, span); - - /* Set the stencil pass/fail flags according to result of depth testing. - * if oldmask[i] == 0 then - * Don't touch the stencil value - * else if oldmask[i] and newmask[i] then - * Depth test passed - * else - * assert(oldmask[i] && !newmask[i]) - * Depth test failed - * endif - */ - for (i=0;i<n;i++) { - ASSERT(mask[i] == 0 || mask[i] == 1); - passmask[i] = oldmask[i] & mask[i]; - failmask[i] = oldmask[i] & (mask[i] ^ 1); - } - - /* apply the pass and fail operations */ - if (ctx->Stencil.ZFailFunc[face] != GL_KEEP) { - apply_stencil_op( ctx, ctx->Stencil.ZFailFunc[face], face, - n, stencil, failmask ); - } - if (ctx->Stencil.ZPassFunc[face] != GL_KEEP) { - apply_stencil_op( ctx, ctx->Stencil.ZPassFunc[face], face, - n, stencil, passmask ); - } - } - - /* - * Write updated stencil values back into hardware stencil buffer. - */ - if (!rb->GetPointer(ctx, rb, 0, 0)) { - rb->PutRow(ctx, rb, n, x, y, stencil, NULL); - } - - span->writeAll = GL_FALSE; - - return GL_TRUE; /* one or more fragments passed both tests */ -} - - - -/* - * Return the address of a stencil buffer value given the window coords: - */ -#define STENCIL_ADDRESS(X, Y) (stencilStart + (Y) * stride + (X)) - - - -/** - * Apply the given stencil operator for each pixel in the array whose - * mask flag is set. - * \note This is for software stencil buffers only. - * Input: n - number of pixels in the span - * x, y - array of [n] pixels - * operator - the stencil buffer operator - * mask - array [n] of flag: 1=apply operator, 0=don't apply operator - */ -static void -apply_stencil_op_to_pixels( GLcontext *ctx, - GLuint n, const GLint x[], const GLint y[], - GLenum oper, GLuint face, const GLubyte mask[] ) -{ - struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *rb = fb->Attachment[BUFFER_STENCIL].Renderbuffer; - const GLstencil ref = ctx->Stencil.Ref[face]; - const GLstencil wrtmask = ctx->Stencil.WriteMask[face]; - const GLstencil invmask = (GLstencil) (~wrtmask); - GLuint i; - GLstencil *stencilStart = (GLubyte *) rb->Data; - const GLuint stride = rb->Width; - - ASSERT(rb->GetPointer(ctx, rb, 0, 0)); - ASSERT(sizeof(GLstencil) == 1); - - switch (oper) { - case GL_KEEP: - /* do nothing */ - break; - case GL_ZERO: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = 0; - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = (GLstencil) (invmask & *sptr); - } - } - } - break; - case GL_REPLACE: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = ref; - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = (GLstencil) ((invmask & *sptr ) | (wrtmask & ref)); - } - } - } - break; - case GL_INCR: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - if (*sptr < STENCIL_MAX) { - *sptr = (GLstencil) (*sptr + 1); - } - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - if (*sptr < STENCIL_MAX) { - *sptr = (GLstencil) ((invmask & *sptr) | (wrtmask & (*sptr+1))); - } - } - } - } - break; - case GL_DECR: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - if (*sptr>0) { - *sptr = (GLstencil) (*sptr - 1); - } - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - if (*sptr>0) { - *sptr = (GLstencil) ((invmask & *sptr) | (wrtmask & (*sptr-1))); - } - } - } - } - break; - case GL_INCR_WRAP_EXT: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = (GLstencil) (*sptr + 1); - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = (GLstencil) ((invmask & *sptr) | (wrtmask & (*sptr+1))); - } - } - } - break; - case GL_DECR_WRAP_EXT: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = (GLstencil) (*sptr - 1); - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = (GLstencil) ((invmask & *sptr) | (wrtmask & (*sptr-1))); - } - } - } - break; - case GL_INVERT: - if (invmask==0) { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = (GLstencil) (~*sptr); - } - } - } - else { - for (i=0;i<n;i++) { - if (mask[i]) { - GLstencil *sptr = STENCIL_ADDRESS( x[i], y[i] ); - *sptr = (GLstencil) ((invmask & *sptr) | (wrtmask & ~*sptr)); - } - } - } - break; - default: - _mesa_problem(ctx, "Bad stencilop in apply_stencil_op_to_pixels"); - } -} - - - -/** - * Apply stencil test to an array of pixels before depth buffering. - * - * \note Used for software stencil buffer only. - * Input: n - number of pixels in the span - * x, y - array of [n] pixels to stencil - * mask - array [n] of flag: 0=skip the pixel, 1=stencil the pixel - * Output: mask - pixels which fail the stencil test will have their - * mask flag set to 0. - * \return GL_FALSE = all pixels failed, GL_TRUE = zero or more pixels passed. - */ -static GLboolean -stencil_test_pixels( GLcontext *ctx, GLuint face, GLuint n, - const GLint x[], const GLint y[], GLubyte mask[] ) -{ - const struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *rb = fb->Attachment[BUFFER_STENCIL].Renderbuffer; - GLubyte fail[MAX_WIDTH]; - GLstencil r, s; - GLuint i; - GLboolean allfail = GL_FALSE; - const GLuint valueMask = ctx->Stencil.ValueMask[face]; - const GLstencil *stencilStart = (GLstencil *) rb->Data; - const GLuint stride = rb->Width; - - ASSERT(rb->GetPointer(ctx, rb, 0, 0)); - ASSERT(sizeof(GLstencil) == 1); - - /* - * Perform stencil test. The results of this operation are stored - * in the fail[] array: - * IF fail[i] is non-zero THEN - * the stencil fail operator is to be applied - * ELSE - * the stencil fail operator is not to be applied - * ENDIF - */ - - switch (ctx->Stencil.Function[face]) { - case GL_NEVER: - /* always fail */ - for (i=0;i<n;i++) { - if (mask[i]) { - mask[i] = 0; - fail[i] = 1; - } - else { - fail[i] = 0; - } - } - allfail = GL_TRUE; - break; - case GL_LESS: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - const GLstencil *sptr = STENCIL_ADDRESS(x[i],y[i]); - s = (GLstencil) (*sptr & valueMask); - if (r < s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_LEQUAL: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - const GLstencil *sptr = STENCIL_ADDRESS(x[i],y[i]); - s = (GLstencil) (*sptr & valueMask); - if (r <= s) { - /* pass */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_GREATER: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - const GLstencil *sptr = STENCIL_ADDRESS(x[i],y[i]); - s = (GLstencil) (*sptr & valueMask); - if (r > s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_GEQUAL: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - const GLstencil *sptr = STENCIL_ADDRESS(x[i],y[i]); - s = (GLstencil) (*sptr & valueMask); - if (r >= s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_EQUAL: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - const GLstencil *sptr = STENCIL_ADDRESS(x[i],y[i]); - s = (GLstencil) (*sptr & valueMask); - if (r == s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_NOTEQUAL: - r = (GLstencil) (ctx->Stencil.Ref[face] & valueMask); - for (i=0;i<n;i++) { - if (mask[i]) { - const GLstencil *sptr = STENCIL_ADDRESS(x[i],y[i]); - s = (GLstencil) (*sptr & valueMask); - if (r != s) { - /* passed */ - fail[i] = 0; - } - else { - fail[i] = 1; - mask[i] = 0; - } - } - else { - fail[i] = 0; - } - } - break; - case GL_ALWAYS: - /* always pass */ - for (i=0;i<n;i++) { - fail[i] = 0; - } - break; - default: - _mesa_problem(ctx, "Bad stencil func in gl_stencil_pixels"); - return 0; - } - - if (ctx->Stencil.FailFunc[face] != GL_KEEP) { - apply_stencil_op_to_pixels( ctx, n, x, y, ctx->Stencil.FailFunc[face], - face, fail ); - } - - return !allfail; -} - - - - -/** - * Apply stencil and depth testing to an array of pixels. - * This is used both for software and hardware stencil buffers. - * - * The comments in this function are a bit sparse but the code is - * almost identical to stencil_and_ztest_span(), which is well - * commented. - * - * Input: n - number of pixels in the array - * x, y - array of [n] pixel positions - * z - array [n] of z values - * mask - array [n] of flags (1=test this pixel, 0=skip the pixel) - * Output: mask - array [n] of flags (1=stencil and depth test passed) - * Return: GL_FALSE - all fragments failed the testing - * GL_TRUE - one or more fragments passed the testing - */ -static GLboolean -stencil_and_ztest_pixels( GLcontext *ctx, struct sw_span *span, GLuint face ) -{ - struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *rb = fb->Attachment[BUFFER_STENCIL].Renderbuffer; - const GLuint n = span->end; - const GLint *x = span->array->x; - const GLint *y = span->array->y; - GLubyte *mask = span->array->mask; - - ASSERT(span->arrayMask & SPAN_XY); - ASSERT(ctx->Stencil.Enabled); - ASSERT(n <= MAX_WIDTH); - - if (!rb->GetPointer(ctx, rb, 0, 0)) { - /* No direct access */ - GLstencil stencil[MAX_WIDTH]; - GLubyte origMask[MAX_WIDTH]; - - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - _swrast_get_values(ctx, rb, n, x, y, stencil, sizeof(GLubyte)); - - _mesa_memcpy(origMask, mask, n * sizeof(GLubyte)); - - (void) do_stencil_test(ctx, face, n, stencil, mask); - - if (ctx->Depth.Test == GL_FALSE) { - apply_stencil_op(ctx, ctx->Stencil.ZPassFunc[face], face, - n, stencil, mask); - } - else { - _swrast_depth_test_span(ctx, span); - - if (ctx->Stencil.ZFailFunc[face] != GL_KEEP) { - GLubyte failmask[MAX_WIDTH]; - GLuint i; - for (i = 0; i < n; i++) { - ASSERT(mask[i] == 0 || mask[i] == 1); - failmask[i] = origMask[i] & (mask[i] ^ 1); - } - apply_stencil_op(ctx, ctx->Stencil.ZFailFunc[face], face, - n, stencil, failmask); - } - if (ctx->Stencil.ZPassFunc[face] != GL_KEEP) { - GLubyte passmask[MAX_WIDTH]; - GLuint i; - for (i = 0; i < n; i++) { - ASSERT(mask[i] == 0 || mask[i] == 1); - passmask[i] = origMask[i] & mask[i]; - } - apply_stencil_op(ctx, ctx->Stencil.ZPassFunc[face], face, - n, stencil, passmask); - } - } - - /* Write updated stencil values into hardware stencil buffer */ - rb->PutValues(ctx, rb, n, x, y, stencil, origMask); - - return GL_TRUE; - } - else { - /* Direct access to stencil buffer */ - - if (stencil_test_pixels(ctx, face, n, x, y, mask) == GL_FALSE) { - /* all fragments failed the stencil test, we're done. */ - return GL_FALSE; - } - - if (ctx->Depth.Test==GL_FALSE) { - apply_stencil_op_to_pixels(ctx, n, x, y, - ctx->Stencil.ZPassFunc[face], face, mask); - } - else { - GLubyte passmask[MAX_WIDTH], failmask[MAX_WIDTH], oldmask[MAX_WIDTH]; - GLuint i; - - _mesa_memcpy(oldmask, mask, n * sizeof(GLubyte)); - - _swrast_depth_test_span(ctx, span); - - for (i=0;i<n;i++) { - ASSERT(mask[i] == 0 || mask[i] == 1); - passmask[i] = oldmask[i] & mask[i]; - failmask[i] = oldmask[i] & (mask[i] ^ 1); - } - - if (ctx->Stencil.ZFailFunc[face] != GL_KEEP) { - apply_stencil_op_to_pixels(ctx, n, x, y, - ctx->Stencil.ZFailFunc[face], - face, failmask); - } - if (ctx->Stencil.ZPassFunc[face] != GL_KEEP) { - apply_stencil_op_to_pixels(ctx, n, x, y, - ctx->Stencil.ZPassFunc[face], - face, passmask); - } - } - - return GL_TRUE; /* one or more fragments passed both tests */ - } -} - - -/** - * /return GL_TRUE = one or more fragments passed, - * GL_FALSE = all fragments failed. - */ -GLboolean -_swrast_stencil_and_ztest_span(GLcontext *ctx, struct sw_span *span) -{ - /* span->facing can only be non-zero if using two-sided stencil */ - ASSERT(ctx->Stencil.TestTwoSide || span->facing == 0); - if (span->arrayMask & SPAN_XY) - return stencil_and_ztest_pixels(ctx, span, span->facing); - else - return stencil_and_ztest_span(ctx, span, span->facing); -} - - -#if 0 -GLuint -clip_span(GLuint bufferWidth, GLuint bufferHeight, - GLint x, GLint y, GLuint *count) -{ - GLuint n = *count; - GLuint skipPixels = 0; - - if (y < 0 || y >= bufferHeight || x + n <= 0 || x >= bufferWidth) { - /* totally out of bounds */ - n = 0; - } - else { - /* left clip */ - if (x < 0) { - skipPixels = -x; - x = 0; - n -= skipPixels; - } - /* right clip */ - if (x + n > bufferWidth) { - GLint dx = x + n - bufferWidth; - n -= dx; - } - } - - *count = n; - - return skipPixels; -} -#endif - - -/** - * Return a span of stencil values from the stencil buffer. - * Used for glRead/CopyPixels - * Input: n - how many pixels - * x,y - location of first pixel - * Output: stencil - the array of stencil values - */ -void -_swrast_read_stencil_span(GLcontext *ctx, struct gl_renderbuffer *rb, - GLint n, GLint x, GLint y, GLstencil stencil[]) -{ - if (y < 0 || y >= rb->Height || x + n <= 0 || x >= rb->Width) { - /* span is completely outside framebuffer */ - return; /* undefined values OK */ - } - - if (x < 0) { - GLint dx = -x; - x = 0; - n -= dx; - stencil += dx; - } - if (x + n > rb->Width) { - GLint dx = x + n - rb->Width; - n -= dx; - } - if (n <= 0) { - return; - } - - rb->GetRow(ctx, rb, n, x, y, stencil); -} - - - -/** - * Write a span of stencil values to the stencil buffer. - * Used for glDraw/CopyPixels - * Input: n - how many pixels - * x, y - location of first pixel - * stencil - the array of stencil values - */ -void -_swrast_write_stencil_span(GLcontext *ctx, GLint n, GLint x, GLint y, - const GLstencil stencil[] ) -{ - struct gl_framebuffer *fb = ctx->DrawBuffer; - struct gl_renderbuffer *rb = fb->Attachment[BUFFER_STENCIL].Renderbuffer; - const GLuint stencilMax = (1 << fb->Visual.stencilBits) - 1; - const GLuint stencilMask = ctx->Stencil.WriteMask[0]; - - if (y < 0 || y >= rb->Height || x + n <= 0 || x >= rb->Width) { - /* span is completely outside framebuffer */ - return; /* undefined values OK */ - } - if (x < 0) { - GLint dx = -x; - x = 0; - n -= dx; - stencil += dx; - } - if (x + n > rb->Width) { - GLint dx = x + n - rb->Width; - n -= dx; - } - if (n <= 0) { - return; - } - - if ((stencilMask & stencilMax) != stencilMax) { - /* need to apply writemask */ - GLstencil destVals[MAX_WIDTH], newVals[MAX_WIDTH]; - GLint i; - rb->GetRow(ctx, rb, n, x, y, destVals); - for (i = 0; i < n; i++) { - newVals[i] - = (stencil[i] & stencilMask) | (destVals[i] & ~stencilMask); - } - rb->PutRow(ctx, rb, n, x, y, newVals, NULL); - } - else { - rb->PutRow(ctx, rb, n, x, y, stencil, NULL); - } -} - - - -/** - * Clear the stencil buffer. - */ -void -_swrast_clear_stencil_buffer( GLcontext *ctx, struct gl_renderbuffer *rb ) -{ - const GLstencil mask = ctx->Stencil.WriteMask[0]; - const GLstencil invMask = ~mask; - const GLstencil clearVal = (ctx->Stencil.Clear & mask); - GLint x, y, width, height; - - if (!rb || mask == 0) - return; - - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - ASSERT(rb->_BaseFormat == GL_STENCIL_INDEX); - - /* compute region to clear */ - x = ctx->DrawBuffer->_Xmin; - y = ctx->DrawBuffer->_Ymin; - width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin; - height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin; - - if (rb->GetPointer(ctx, rb, 0, 0)) { - /* Direct buffer access */ - if (ctx->Stencil.WriteMask[0] != STENCIL_MAX) { - /* need to mask the clear */ - GLint i, j; - for (i = 0; i < height; i++) { - GLubyte *stencil = rb->GetPointer(ctx, rb, x, y + i); - for (j = 0; j < width; j++) { - stencil[j] = (stencil[j] & invMask) | clearVal; - } - } - } - else { - /* no bit masking */ - if (width == rb->Width && - rb->InternalFormat == GL_STENCIL_INDEX8_EXT) { - /* optimized case */ - GLubyte *stencil = rb->GetPointer(ctx, rb, x, y); - GLuint len = width * height * sizeof(GLubyte); - _mesa_memset(stencil, clearVal, len); - } - else { - /* general case */ - GLint i, j; - for (i = 0; i < height; i++) { - GLubyte *stencil = rb->GetPointer(ctx, rb, x, y + i); - for (j = 0; j < width; j++) { - stencil[j] = clearVal; - } - } - } - } - } - else { - /* no direct access */ - if (ctx->Stencil.WriteMask[0] != STENCIL_MAX) { - /* need to mask the clear */ - GLint i, j; - for (i = 0; i < height; i++) { - GLubyte stencil[MAX_WIDTH]; - rb->GetRow(ctx, rb, width, x, y + i, stencil); - for (j = 0; j < width; j++) { - stencil[j] = (stencil[j] & invMask) | clearVal; - } - rb->PutRow(ctx, rb, width, x, y + i, stencil, NULL); - } - } - else { - /* no bit masking */ - const GLubyte clear8 = clearVal; - GLint i; - for (i = 0; i < height; i++) { - rb->PutMonoRow(ctx, rb, width, x, y + i, &clear8, NULL); - } - } - } -} - diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_stencil.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_stencil.h deleted file mode 100644 index fabc25250..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_stencil.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_STENCIL_H -#define S_STENCIL_H - - -#include "mtypes.h" -#include "swrast.h" - - - -extern GLboolean -_swrast_stencil_and_ztest_span(GLcontext *ctx, struct sw_span *span); - - -extern void -_swrast_read_stencil_span(GLcontext *ctx, struct gl_renderbuffer *rb, - GLint n, GLint x, GLint y, GLstencil stencil[]); - - -extern void -_swrast_write_stencil_span( GLcontext *ctx, GLint n, GLint x, GLint y, - const GLstencil stencil[] ); - - -extern void -_swrast_clear_stencil_buffer( GLcontext *ctx, struct gl_renderbuffer *rb ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_texstore.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_texstore.c deleted file mode 100644 index 24470a735..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_texstore.c +++ /dev/null @@ -1,430 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * Authors: - * Brian Paul - */ - - -/* - * The functions in this file are mostly related to software texture fallbacks. - * This includes texture image transfer/packing and texel fetching. - * Hardware drivers will likely override most of this. - */ - - - -#include "glheader.h" -#include "imports.h" -#include "colormac.h" -#include "context.h" -#include "convolve.h" -#include "image.h" -#include "macros.h" -#include "texformat.h" -#include "teximage.h" -#include "texstore.h" - -#include "s_context.h" -#include "s_depth.h" -#include "s_span.h" - -/* - * Read an RGBA image from the frame buffer. - * This is used by glCopyTex[Sub]Image[12]D(). - * Input: ctx - the context - * x, y - lower left corner - * width, height - size of region to read - * Return: pointer to block of GL_RGBA, GLchan data. - */ -static GLchan * -read_color_image( GLcontext *ctx, GLint x, GLint y, - GLsizei width, GLsizei height ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLint stride, i; - GLchan *image, *dst; - - image = (GLchan *) _mesa_malloc(width * height * 4 * sizeof(GLchan)); - if (!image) - return NULL; - - /* Select buffer to read from */ - _swrast_use_read_buffer(ctx); - - RENDER_START(swrast,ctx); - - dst = image; - stride = width * 4; - for (i = 0; i < height; i++) { - _swrast_read_rgba_span(ctx, ctx->ReadBuffer->_ColorReadBuffer, - width, x, y + i, (GLchan (*)[4]) dst); - dst += stride; - } - - RENDER_FINISH(swrast,ctx); - - /* Read from draw buffer (the default) */ - _swrast_use_draw_buffer(ctx); - - return image; -} - - -/* - * As above, but read data from depth buffer. - */ -static GLfloat * -read_depth_image( GLcontext *ctx, GLint x, GLint y, - GLsizei width, GLsizei height ) -{ - struct gl_renderbuffer *rb - = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLfloat *image, *dst; - GLint i; - - image = (GLfloat *) _mesa_malloc(width * height * sizeof(GLfloat)); - if (!image) - return NULL; - - RENDER_START(swrast,ctx); - - dst = image; - for (i = 0; i < height; i++) { - _swrast_read_depth_span_float(ctx, rb, width, x, y + i, dst); - dst += width; - } - - RENDER_FINISH(swrast,ctx); - - return image; -} - - - -static GLboolean -is_depth_format(GLenum format) -{ - switch (format) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT16_SGIX: - case GL_DEPTH_COMPONENT24_SGIX: - case GL_DEPTH_COMPONENT32_SGIX: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/* - * Fallback for Driver.CopyTexImage1D(). - */ -void -_swrast_copy_teximage1d( GLcontext *ctx, GLenum target, GLint level, - GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLint border ) -{ - struct gl_texture_unit *texUnit; - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - texObj = _mesa_select_tex_object(ctx, texUnit, target); - ASSERT(texObj); - texImage = _mesa_select_tex_image(ctx, texUnit, target, level); - ASSERT(texImage); - - ASSERT(ctx->Driver.TexImage1D); - - if (is_depth_format(internalFormat)) { - /* read depth image from framebuffer */ - GLfloat *image = read_depth_image(ctx, x, y, width, 1); - if (!image) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D"); - return; - } - - /* call glTexImage1D to redefine the texture */ - (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat, - width, border, - GL_DEPTH_COMPONENT, GL_FLOAT, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - else { - /* read RGBA image from framebuffer */ - GLchan *image = read_color_image(ctx, x, y, width, 1); - if (!image) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D"); - return; - } - - /* call glTexImage1D to redefine the texture */ - (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat, - width, border, - GL_RGBA, CHAN_TYPE, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - - /* GL_SGIS_generate_mipmap */ - if (level == texObj->BaseLevel && texObj->GenerateMipmap) { - _mesa_generate_mipmap(ctx, target, texUnit, texObj); - } -} - - -/* - * Fallback for Driver.CopyTexImage2D(). - */ -void -_swrast_copy_teximage2d( GLcontext *ctx, GLenum target, GLint level, - GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLsizei height, - GLint border ) -{ - struct gl_texture_unit *texUnit; - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - texObj = _mesa_select_tex_object(ctx, texUnit, target); - ASSERT(texObj); - texImage = _mesa_select_tex_image(ctx, texUnit, target, level); - ASSERT(texImage); - - ASSERT(ctx->Driver.TexImage2D); - - if (is_depth_format(internalFormat)) { - /* read depth image from framebuffer */ - GLfloat *image = read_depth_image(ctx, x, y, width, height); - if (!image) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D"); - return; - } - - /* call glTexImage2D to redefine the texture */ - (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat, - width, height, border, - GL_DEPTH_COMPONENT, GL_FLOAT, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - else { - /* read RGBA image from framebuffer */ - GLchan *image = read_color_image(ctx, x, y, width, height); - if (!image) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D"); - return; - } - - /* call glTexImage2D to redefine the texture */ - (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat, - width, height, border, - GL_RGBA, CHAN_TYPE, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - - /* GL_SGIS_generate_mipmap */ - if (level == texObj->BaseLevel && texObj->GenerateMipmap) { - _mesa_generate_mipmap(ctx, target, texUnit, texObj); - } -} - - -/* - * Fallback for Driver.CopyTexSubImage1D(). - */ -void -_swrast_copy_texsubimage1d( GLcontext *ctx, GLenum target, GLint level, - GLint xoffset, GLint x, GLint y, GLsizei width ) -{ - struct gl_texture_unit *texUnit; - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - texObj = _mesa_select_tex_object(ctx, texUnit, target); - ASSERT(texObj); - texImage = _mesa_select_tex_image(ctx, texUnit, target, level); - ASSERT(texImage); - - ASSERT(ctx->Driver.TexImage1D); - - if (texImage->Format == GL_DEPTH_COMPONENT) { - /* read depth image from framebuffer */ - GLfloat *image = read_depth_image(ctx, x, y, width, 1); - if (!image) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage1D"); - return; - } - - /* call glTexSubImage1D to redefine the texture */ - (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width, - GL_DEPTH_COMPONENT, GL_FLOAT, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - else { - /* read RGBA image from framebuffer */ - GLchan *image = read_color_image(ctx, x, y, width, 1); - if (!image) { - _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage1D" ); - return; - } - - /* now call glTexSubImage1D to do the real work */ - (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width, - GL_RGBA, CHAN_TYPE, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - - /* GL_SGIS_generate_mipmap */ - if (level == texObj->BaseLevel && texObj->GenerateMipmap) { - _mesa_generate_mipmap(ctx, target, texUnit, texObj); - } -} - - -/* - * Fallback for Driver.CopyTexSubImage2D(). - */ -void -_swrast_copy_texsubimage2d( GLcontext *ctx, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLint x, GLint y, GLsizei width, GLsizei height ) -{ - struct gl_texture_unit *texUnit; - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - texObj = _mesa_select_tex_object(ctx, texUnit, target); - ASSERT(texObj); - texImage = _mesa_select_tex_image(ctx, texUnit, target, level); - ASSERT(texImage); - - ASSERT(ctx->Driver.TexImage2D); - - if (texImage->Format == GL_DEPTH_COMPONENT) { - /* read depth image from framebuffer */ - GLfloat *image = read_depth_image(ctx, x, y, width, height); - if (!image) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage2D"); - return; - } - - /* call glTexImage1D to redefine the texture */ - (*ctx->Driver.TexSubImage2D)(ctx, target, level, - xoffset, yoffset, width, height, - GL_DEPTH_COMPONENT, GL_FLOAT, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - else { - /* read RGBA image from framebuffer */ - GLchan *image = read_color_image(ctx, x, y, width, height); - if (!image) { - _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage2D" ); - return; - } - - /* now call glTexSubImage2D to do the real work */ - (*ctx->Driver.TexSubImage2D)(ctx, target, level, - xoffset, yoffset, width, height, - GL_RGBA, CHAN_TYPE, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - - /* GL_SGIS_generate_mipmap */ - if (level == texObj->BaseLevel && texObj->GenerateMipmap) { - _mesa_generate_mipmap(ctx, target, texUnit, texObj); - } -} - - -/* - * Fallback for Driver.CopyTexSubImage3D(). - */ -void -_swrast_copy_texsubimage3d( GLcontext *ctx, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint x, GLint y, GLsizei width, GLsizei height ) -{ - struct gl_texture_unit *texUnit; - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - texObj = _mesa_select_tex_object(ctx, texUnit, target); - ASSERT(texObj); - texImage = _mesa_select_tex_image(ctx, texUnit, target, level); - ASSERT(texImage); - - ASSERT(ctx->Driver.TexImage3D); - - if (texImage->Format == GL_DEPTH_COMPONENT) { - /* read depth image from framebuffer */ - GLfloat *image = read_depth_image(ctx, x, y, width, height); - if (!image) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage3D"); - return; - } - - /* call glTexImage1D to redefine the texture */ - (*ctx->Driver.TexSubImage3D)(ctx, target, level, - xoffset, yoffset, zoffset, width, height, 1, - GL_DEPTH_COMPONENT, GL_FLOAT, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - else { - /* read RGBA image from framebuffer */ - GLchan *image = read_color_image(ctx, x, y, width, height); - if (!image) { - _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage3D" ); - return; - } - - /* now call glTexSubImage3D to do the real work */ - (*ctx->Driver.TexSubImage3D)(ctx, target, level, - xoffset, yoffset, zoffset, width, height, 1, - GL_RGBA, CHAN_TYPE, image, - &ctx->DefaultPacking, texObj, texImage); - _mesa_free(image); - } - - /* GL_SGIS_generate_mipmap */ - if (level == texObj->BaseLevel && texObj->GenerateMipmap) { - _mesa_generate_mipmap(ctx, target, texUnit, texObj); - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_texture.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_texture.c deleted file mode 100644 index c75d826d2..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_texture.c +++ /dev/null @@ -1,3963 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.4 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "colormac.h" -#include "macros.h" -#include "imports.h" -#include "pixel.h" -#include "texformat.h" -#include "teximage.h" - -#include "s_context.h" -#include "s_texture.h" - - -/** - * Constants for integer linear interpolation. - */ -#define ILERP_SCALE 65536.0F -#define ILERP_SHIFT 16 - - -/** - * Linear interpolation macros - */ -#define LERP(T, A, B) ( (A) + (T) * ((B) - (A)) ) -#define ILERP(IT, A, B) ( (A) + (((IT) * ((B) - (A))) >> ILERP_SHIFT) ) - - -/** - * Do 2D/biliner interpolation of float values. - * v00, v10, v01 and v11 are typically four texture samples in a square/box. - * a and b are the horizontal and vertical interpolants. - * It's important that this function is inlined when compiled with - * optimization! If we find that's not true on some systems, convert - * to a macro. - */ -static INLINE GLfloat -lerp_2d(GLfloat a, GLfloat b, - GLfloat v00, GLfloat v10, GLfloat v01, GLfloat v11) -{ - const GLfloat temp0 = LERP(a, v00, v10); - const GLfloat temp1 = LERP(a, v01, v11); - return LERP(b, temp0, temp1); -} - - -/** - * Do 2D/biliner interpolation of integer values. - * \sa lerp_2d - */ -static INLINE GLint -ilerp_2d(GLint ia, GLint ib, - GLint v00, GLint v10, GLint v01, GLint v11) -{ - /* fixed point interpolants in [0, ILERP_SCALE] */ - const GLint temp0 = ILERP(ia, v00, v10); - const GLint temp1 = ILERP(ia, v01, v11); - return ILERP(ib, temp0, temp1); -} - - -/** - * Do 3D/trilinear interpolation of float values. - * \sa lerp_2d - */ -static INLINE GLfloat -lerp_3d(GLfloat a, GLfloat b, GLfloat c, - GLfloat v000, GLfloat v100, GLfloat v010, GLfloat v110, - GLfloat v001, GLfloat v101, GLfloat v011, GLfloat v111) -{ - const GLfloat temp00 = LERP(a, v000, v100); - const GLfloat temp10 = LERP(a, v010, v110); - const GLfloat temp01 = LERP(a, v001, v101); - const GLfloat temp11 = LERP(a, v011, v111); - const GLfloat temp0 = LERP(b, temp00, temp10); - const GLfloat temp1 = LERP(b, temp01, temp11); - return LERP(c, temp0, temp1); -} - - -/** - * Do 3D/trilinear interpolation of integer values. - * \sa lerp_2d - */ -static INLINE GLint -ilerp_3d(GLint ia, GLint ib, GLint ic, - GLint v000, GLint v100, GLint v010, GLint v110, - GLint v001, GLint v101, GLint v011, GLint v111) -{ - /* fixed point interpolants in [0, ILERP_SCALE] */ - const GLint temp00 = ILERP(ia, v000, v100); - const GLint temp10 = ILERP(ia, v010, v110); - const GLint temp01 = ILERP(ia, v001, v101); - const GLint temp11 = ILERP(ia, v011, v111); - const GLint temp0 = ILERP(ib, temp00, temp10); - const GLint temp1 = ILERP(ib, temp01, temp11); - return ILERP(ic, temp0, temp1); -} - - - -/** - * Compute the remainder of a divided by b, but be careful with - * negative values so that GL_REPEAT mode works right. - */ -static INLINE GLint -repeat_remainder(GLint a, GLint b) -{ - if (a >= 0) - return a % b; - else - return (a + 1) % b + b - 1; -} - - -/** - * Used to compute texel locations for linear sampling. - * Input: - * wrapMode = GL_REPEAT, GL_CLAMP, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_BORDER - * S = texcoord in [0,1] - * SIZE = width (or height or depth) of texture - * Output: - * U = texcoord in [0, width] - * I0, I1 = two nearest texel indexes - */ -#define COMPUTE_LINEAR_TEXEL_LOCATIONS(wrapMode, S, U, SIZE, I0, I1) \ -{ \ - if (wrapMode == GL_REPEAT) { \ - U = S * SIZE - 0.5F; \ - if (tObj->_IsPowerOfTwo) { \ - I0 = IFLOOR(U) & (SIZE - 1); \ - I1 = (I0 + 1) & (SIZE - 1); \ - } \ - else { \ - I0 = repeat_remainder(IFLOOR(U), SIZE); \ - I1 = repeat_remainder(I0 + 1, SIZE); \ - } \ - } \ - else if (wrapMode == GL_CLAMP_TO_EDGE) { \ - if (S <= 0.0F) \ - U = 0.0F; \ - else if (S >= 1.0F) \ - U = (GLfloat) SIZE; \ - else \ - U = S * SIZE; \ - U -= 0.5F; \ - I0 = IFLOOR(U); \ - I1 = I0 + 1; \ - if (I0 < 0) \ - I0 = 0; \ - if (I1 >= (GLint) SIZE) \ - I1 = SIZE - 1; \ - } \ - else if (wrapMode == GL_CLAMP_TO_BORDER) { \ - const GLfloat min = -1.0F / (2.0F * SIZE); \ - const GLfloat max = 1.0F - min; \ - if (S <= min) \ - U = min * SIZE; \ - else if (S >= max) \ - U = max * SIZE; \ - else \ - U = S * SIZE; \ - U -= 0.5F; \ - I0 = IFLOOR(U); \ - I1 = I0 + 1; \ - } \ - else if (wrapMode == GL_MIRRORED_REPEAT) { \ - const GLint flr = IFLOOR(S); \ - if (flr & 1) \ - U = 1.0F - (S - (GLfloat) flr); /* flr is odd */ \ - else \ - U = S - (GLfloat) flr; /* flr is even */ \ - U = (U * SIZE) - 0.5F; \ - I0 = IFLOOR(U); \ - I1 = I0 + 1; \ - if (I0 < 0) \ - I0 = 0; \ - if (I1 >= (GLint) SIZE) \ - I1 = SIZE - 1; \ - } \ - else if (wrapMode == GL_MIRROR_CLAMP_EXT) { \ - U = (GLfloat) fabs(S); \ - if (U >= 1.0F) \ - U = (GLfloat) SIZE; \ - else \ - U *= SIZE; \ - U -= 0.5F; \ - I0 = IFLOOR(U); \ - I1 = I0 + 1; \ - } \ - else if (wrapMode == GL_MIRROR_CLAMP_TO_EDGE_EXT) { \ - U = (GLfloat) fabs(S); \ - if (U >= 1.0F) \ - U = (GLfloat) SIZE; \ - else \ - U *= SIZE; \ - U -= 0.5F; \ - I0 = IFLOOR(U); \ - I1 = I0 + 1; \ - if (I0 < 0) \ - I0 = 0; \ - if (I1 >= (GLint) SIZE) \ - I1 = SIZE - 1; \ - } \ - else if (wrapMode == GL_MIRROR_CLAMP_TO_BORDER_EXT) { \ - const GLfloat min = -1.0F / (2.0F * SIZE); \ - const GLfloat max = 1.0F - min; \ - U = (GLfloat) fabs(S); \ - if (U <= min) \ - U = min * SIZE; \ - else if (U >= max) \ - U = max * SIZE; \ - else \ - U *= SIZE; \ - U -= 0.5F; \ - I0 = IFLOOR(U); \ - I1 = I0 + 1; \ - } \ - else { \ - ASSERT(wrapMode == GL_CLAMP); \ - if (S <= 0.0F) \ - U = 0.0F; \ - else if (S >= 1.0F) \ - U = (GLfloat) SIZE; \ - else \ - U = S * SIZE; \ - U -= 0.5F; \ - I0 = IFLOOR(U); \ - I1 = I0 + 1; \ - } \ -} - - -/** - * Used to compute texel location for nearest sampling. - */ -#define COMPUTE_NEAREST_TEXEL_LOCATION(wrapMode, S, SIZE, I) \ -{ \ - if (wrapMode == GL_REPEAT) { \ - /* s limited to [0,1) */ \ - /* i limited to [0,size-1] */ \ - I = IFLOOR(S * SIZE); \ - if (tObj->_IsPowerOfTwo) \ - I &= (SIZE - 1); \ - else \ - I = repeat_remainder(I, SIZE); \ - } \ - else if (wrapMode == GL_CLAMP_TO_EDGE) { \ - /* s limited to [min,max] */ \ - /* i limited to [0, size-1] */ \ - const GLfloat min = 1.0F / (2.0F * SIZE); \ - const GLfloat max = 1.0F - min; \ - if (S < min) \ - I = 0; \ - else if (S > max) \ - I = SIZE - 1; \ - else \ - I = IFLOOR(S * SIZE); \ - } \ - else if (wrapMode == GL_CLAMP_TO_BORDER) { \ - /* s limited to [min,max] */ \ - /* i limited to [-1, size] */ \ - const GLfloat min = -1.0F / (2.0F * SIZE); \ - const GLfloat max = 1.0F - min; \ - if (S <= min) \ - I = -1; \ - else if (S >= max) \ - I = SIZE; \ - else \ - I = IFLOOR(S * SIZE); \ - } \ - else if (wrapMode == GL_MIRRORED_REPEAT) { \ - const GLfloat min = 1.0F / (2.0F * SIZE); \ - const GLfloat max = 1.0F - min; \ - const GLint flr = IFLOOR(S); \ - GLfloat u; \ - if (flr & 1) \ - u = 1.0F - (S - (GLfloat) flr); /* flr is odd */ \ - else \ - u = S - (GLfloat) flr; /* flr is even */ \ - if (u < min) \ - I = 0; \ - else if (u > max) \ - I = SIZE - 1; \ - else \ - I = IFLOOR(u * SIZE); \ - } \ - else if (wrapMode == GL_MIRROR_CLAMP_EXT) { \ - /* s limited to [0,1] */ \ - /* i limited to [0,size-1] */ \ - const GLfloat u = (GLfloat) fabs(S); \ - if (u <= 0.0F) \ - I = 0; \ - else if (u >= 1.0F) \ - I = SIZE - 1; \ - else \ - I = IFLOOR(u * SIZE); \ - } \ - else if (wrapMode == GL_MIRROR_CLAMP_TO_EDGE_EXT) { \ - /* s limited to [min,max] */ \ - /* i limited to [0, size-1] */ \ - const GLfloat min = 1.0F / (2.0F * SIZE); \ - const GLfloat max = 1.0F - min; \ - const GLfloat u = (GLfloat) fabs(S); \ - if (u < min) \ - I = 0; \ - else if (u > max) \ - I = SIZE - 1; \ - else \ - I = IFLOOR(u * SIZE); \ - } \ - else if (wrapMode == GL_MIRROR_CLAMP_TO_BORDER_EXT) { \ - /* s limited to [min,max] */ \ - /* i limited to [0, size-1] */ \ - const GLfloat min = -1.0F / (2.0F * SIZE); \ - const GLfloat max = 1.0F - min; \ - const GLfloat u = (GLfloat) fabs(S); \ - if (u < min) \ - I = -1; \ - else if (u > max) \ - I = SIZE; \ - else \ - I = IFLOOR(u * SIZE); \ - } \ - else { \ - ASSERT(wrapMode == GL_CLAMP); \ - /* s limited to [0,1] */ \ - /* i limited to [0,size-1] */ \ - if (S <= 0.0F) \ - I = 0; \ - else if (S >= 1.0F) \ - I = SIZE - 1; \ - else \ - I = IFLOOR(S * SIZE); \ - } \ -} - - -/* Power of two image sizes only */ -#define COMPUTE_LINEAR_REPEAT_TEXEL_LOCATION(S, U, SIZE, I0, I1) \ -{ \ - U = S * SIZE - 0.5F; \ - I0 = IFLOOR(U) & (SIZE - 1); \ - I1 = (I0 + 1) & (SIZE - 1); \ -} - - -/* - * Compute linear mipmap levels for given lambda. - */ -#define COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda, level) \ -{ \ - if (lambda < 0.0F) \ - level = tObj->BaseLevel; \ - else if (lambda > tObj->_MaxLambda) \ - level = (GLint) (tObj->BaseLevel + tObj->_MaxLambda); \ - else \ - level = (GLint) (tObj->BaseLevel + lambda); \ -} - - -/* - * Compute nearest mipmap level for given lambda. - */ -#define COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level) \ -{ \ - GLfloat l; \ - if (lambda <= 0.5F) \ - l = 0.0F; \ - else if (lambda > tObj->_MaxLambda + 0.4999F) \ - l = tObj->_MaxLambda + 0.4999F; \ - else \ - l = lambda; \ - level = (GLint) (tObj->BaseLevel + l + 0.5F); \ - if (level > tObj->_MaxLevel) \ - level = tObj->_MaxLevel; \ -} - - - -/* - * Note, the FRAC macro has to work perfectly. Otherwise you'll sometimes - * see 1-pixel bands of improperly weighted linear-sampled texels. The - * tests/texwrap.c demo is a good test. - * Also note, FRAC(x) doesn't truly return the fractional part of x for x < 0. - * Instead, if x < 0 then FRAC(x) = 1 - true_frac(x). - */ -#define FRAC(f) ((f) - IFLOOR(f)) - - - -/* - * Bitflags for texture border color sampling. - */ -#define I0BIT 1 -#define I1BIT 2 -#define J0BIT 4 -#define J1BIT 8 -#define K0BIT 16 -#define K1BIT 32 - - - -/* - * The lambda[] array values are always monotonic. Either the whole span - * will be minified, magnified, or split between the two. This function - * determines the subranges in [0, n-1] that are to be minified or magnified. - */ -static INLINE void -compute_min_mag_ranges( GLfloat minMagThresh, GLuint n, const GLfloat lambda[], - GLuint *minStart, GLuint *minEnd, - GLuint *magStart, GLuint *magEnd ) -{ - ASSERT(lambda != NULL); -#if 0 - /* Verify that lambda[] is monotonous. - * We can't really use this because the inaccuracy in the LOG2 function - * causes this test to fail, yet the resulting texturing is correct. - */ - if (n > 1) { - GLuint i; - printf("lambda delta = %g\n", lambda[0] - lambda[n-1]); - if (lambda[0] >= lambda[n-1]) { /* decreasing */ - for (i = 0; i < n - 1; i++) { - ASSERT((GLint) (lambda[i] * 10) >= (GLint) (lambda[i+1] * 10)); - } - } - else { /* increasing */ - for (i = 0; i < n - 1; i++) { - ASSERT((GLint) (lambda[i] * 10) <= (GLint) (lambda[i+1] * 10)); - } - } - } -#endif /* DEBUG */ - - /* since lambda is monotonous-array use this check first */ - if (lambda[0] <= minMagThresh && lambda[n-1] <= minMagThresh) { - /* magnification for whole span */ - *magStart = 0; - *magEnd = n; - *minStart = *minEnd = 0; - } - else if (lambda[0] > minMagThresh && lambda[n-1] > minMagThresh) { - /* minification for whole span */ - *minStart = 0; - *minEnd = n; - *magStart = *magEnd = 0; - } - else { - /* a mix of minification and magnification */ - GLuint i; - if (lambda[0] > minMagThresh) { - /* start with minification */ - for (i = 1; i < n; i++) { - if (lambda[i] <= minMagThresh) - break; - } - *minStart = 0; - *minEnd = i; - *magStart = i; - *magEnd = n; - } - else { - /* start with magnification */ - for (i = 1; i < n; i++) { - if (lambda[i] > minMagThresh) - break; - } - *magStart = 0; - *magEnd = i; - *minStart = i; - *minEnd = n; - } - } - -#if 0 - /* Verify the min/mag Start/End values - * We don't use this either (see above) - */ - { - GLint i; - for (i = 0; i < n; i++) { - if (lambda[i] > minMagThresh) { - /* minification */ - ASSERT(i >= *minStart); - ASSERT(i < *minEnd); - } - else { - /* magnification */ - ASSERT(i >= *magStart); - ASSERT(i < *magEnd); - } - } - } -#endif -} - - -/**********************************************************************/ -/* 1-D Texture Sampling Functions */ -/**********************************************************************/ - -/* - * Return the texture sample for coordinate (s) using GL_NEAREST filter. - */ -static void -sample_1d_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - const struct gl_texture_image *img, - const GLfloat texcoord[4], GLchan rgba[4]) -{ - const GLint width = img->Width2; /* without border, power of two */ - GLint i; - (void) ctx; - - COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoord[0], width, i); - - /* skip over the border, if any */ - i += img->Border; - - if (i < 0 || i >= (GLint) img->Width) { - /* Need this test for GL_CLAMP_TO_BORDER mode */ - COPY_CHAN4(rgba, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i, 0, 0, rgba); - } -} - - - -/* - * Return the texture sample for coordinate (s) using GL_LINEAR filter. - */ -static void -sample_1d_linear(GLcontext *ctx, - const struct gl_texture_object *tObj, - const struct gl_texture_image *img, - const GLfloat texcoord[4], GLchan rgba[4]) -{ - const GLint width = img->Width2; - GLint i0, i1; - GLfloat u; - GLuint useBorderColor; - (void) ctx; - - COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoord[0], u, width, i0, i1); - - useBorderColor = 0; - if (img->Border) { - i0 += img->Border; - i1 += img->Border; - } - else { - if (i0 < 0 || i0 >= width) useBorderColor |= I0BIT; - if (i1 < 0 || i1 >= width) useBorderColor |= I1BIT; - } - - { - const GLfloat a = FRAC(u); - GLchan t0[4], t1[4]; /* texels */ - - /* fetch texel colors */ - if (useBorderColor & I0BIT) { - COPY_CHAN4(t0, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i0, 0, 0, t0); - } - if (useBorderColor & I1BIT) { - COPY_CHAN4(t1, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i1, 0, 0, t1); - } - - /* do linear interpolation of texel colors */ -#if CHAN_TYPE == GL_FLOAT - rgba[0] = LERP(a, t0[0], t1[0]); - rgba[1] = LERP(a, t0[1], t1[1]); - rgba[2] = LERP(a, t0[2], t1[2]); - rgba[3] = LERP(a, t0[3], t1[3]); -#elif CHAN_TYPE == GL_UNSIGNED_SHORT - rgba[0] = (GLchan) (LERP(a, t0[0], t1[0]) + 0.5); - rgba[1] = (GLchan) (LERP(a, t0[1], t1[1]) + 0.5); - rgba[2] = (GLchan) (LERP(a, t0[2], t1[2]) + 0.5); - rgba[3] = (GLchan) (LERP(a, t0[3], t1[3]) + 0.5); -#else - ASSERT(CHAN_TYPE == GL_UNSIGNED_BYTE); - { - /* fixed point interpolants in [0, ILERP_SCALE] */ - const GLint ia = IROUND_POS(a * ILERP_SCALE); - rgba[0] = ILERP(ia, t0[0], t1[0]); - rgba[1] = ILERP(ia, t0[1], t1[1]); - rgba[2] = ILERP(ia, t0[2], t1[2]); - rgba[3] = ILERP(ia, t0[3], t1[3]); - } -#endif - } -} - - -static void -sample_1d_nearest_mipmap_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda[i], level); - sample_1d_nearest(ctx, tObj, tObj->Image[0][level], texcoord[i], rgba[i]); - } -} - - -static void -sample_1d_linear_mipmap_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda[i], level); - sample_1d_linear(ctx, tObj, tObj->Image[0][level], texcoord[i], rgba[i]); - } -} - - - -/* - * This is really just needed in order to prevent warnings with some compilers. - */ -#if CHAN_TYPE == GL_FLOAT -#define CHAN_CAST -#else -#define CHAN_CAST (GLchan) (GLint) -#endif - - -static void -sample_1d_nearest_mipmap_linear(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - if (level >= tObj->_MaxLevel) { - sample_1d_nearest(ctx, tObj, tObj->Image[0][tObj->_MaxLevel], - texcoord[i], rgba[i]); - } - else { - GLchan t0[4], t1[4]; - const GLfloat f = FRAC(lambda[i]); - sample_1d_nearest(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0); - sample_1d_nearest(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - - -static void -sample_1d_linear_mipmap_linear(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - if (level >= tObj->_MaxLevel) { - sample_1d_linear(ctx, tObj, tObj->Image[0][tObj->_MaxLevel], - texcoord[i], rgba[i]); - } - else { - GLchan t0[4], t1[4]; - const GLfloat f = FRAC(lambda[i]); - sample_1d_linear(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0); - sample_1d_linear(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - - -static void -sample_nearest_1d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4] ) -{ - GLuint i; - struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel]; - (void) texUnit; - (void) lambda; - for (i=0;i<n;i++) { - sample_1d_nearest(ctx, tObj, image, texcoords[i], rgba[i]); - } -} - - - -static void -sample_linear_1d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4] ) -{ - GLuint i; - struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel]; - (void) texUnit; - (void) lambda; - for (i=0;i<n;i++) { - sample_1d_linear(ctx, tObj, image, texcoords[i], rgba[i]); - } -} - - -/* - * Given an (s) texture coordinate and lambda (level of detail) value, - * return a texture sample. - * - */ -static void -sample_lambda_1d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - GLuint minStart, minEnd; /* texels with minification */ - GLuint magStart, magEnd; /* texels with magnification */ - GLuint i; - - ASSERT(lambda != NULL); - compute_min_mag_ranges(SWRAST_CONTEXT(ctx)->_MinMagThresh[texUnit], - n, lambda, &minStart, &minEnd, &magStart, &magEnd); - - if (minStart < minEnd) { - /* do the minified texels */ - const GLuint m = minEnd - minStart; - switch (tObj->MinFilter) { - case GL_NEAREST: - for (i = minStart; i < minEnd; i++) - sample_1d_nearest(ctx, tObj, tObj->Image[0][tObj->BaseLevel], - texcoords[i], rgba[i]); - break; - case GL_LINEAR: - for (i = minStart; i < minEnd; i++) - sample_1d_linear(ctx, tObj, tObj->Image[0][tObj->BaseLevel], - texcoords[i], rgba[i]); - break; - case GL_NEAREST_MIPMAP_NEAREST: - sample_1d_nearest_mipmap_nearest(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR_MIPMAP_NEAREST: - sample_1d_linear_mipmap_nearest(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_NEAREST_MIPMAP_LINEAR: - sample_1d_nearest_mipmap_linear(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR_MIPMAP_LINEAR: - sample_1d_linear_mipmap_linear(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - default: - _mesa_problem(ctx, "Bad min filter in sample_1d_texture"); - return; - } - } - - if (magStart < magEnd) { - /* do the magnified texels */ - switch (tObj->MagFilter) { - case GL_NEAREST: - for (i = magStart; i < magEnd; i++) - sample_1d_nearest(ctx, tObj, tObj->Image[0][tObj->BaseLevel], - texcoords[i], rgba[i]); - break; - case GL_LINEAR: - for (i = magStart; i < magEnd; i++) - sample_1d_linear(ctx, tObj, tObj->Image[0][tObj->BaseLevel], - texcoords[i], rgba[i]); - break; - default: - _mesa_problem(ctx, "Bad mag filter in sample_1d_texture"); - return; - } - } -} - - -/**********************************************************************/ -/* 2-D Texture Sampling Functions */ -/**********************************************************************/ - - -/* - * Return the texture sample for coordinate (s,t) using GL_NEAREST filter. - */ -static INLINE void -sample_2d_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - const struct gl_texture_image *img, - const GLfloat texcoord[4], - GLchan rgba[]) -{ - const GLint width = img->Width2; /* without border, power of two */ - const GLint height = img->Height2; /* without border, power of two */ - GLint i, j; - (void) ctx; - - COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoord[0], width, i); - COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoord[1], height, j); - - /* skip over the border, if any */ - i += img->Border; - j += img->Border; - - if (i < 0 || i >= (GLint) img->Width || j < 0 || j >= (GLint) img->Height) { - /* Need this test for GL_CLAMP_TO_BORDER mode */ - COPY_CHAN4(rgba, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i, j, 0, rgba); - } -} - - - -/** - * Return the texture sample for coordinate (s,t) using GL_LINEAR filter. - * New sampling code contributed by Lynn Quam <quam@ai.sri.com>. - */ -static INLINE void -sample_2d_linear(GLcontext *ctx, - const struct gl_texture_object *tObj, - const struct gl_texture_image *img, - const GLfloat texcoord[4], - GLchan rgba[]) -{ - const GLint width = img->Width2; - const GLint height = img->Height2; - GLint i0, j0, i1, j1; - GLuint useBorderColor; - GLfloat u, v; - (void) ctx; - - COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoord[0], u, width, i0, i1); - COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapT, texcoord[1], v, height, j0, j1); - - useBorderColor = 0; - if (img->Border) { - i0 += img->Border; - i1 += img->Border; - j0 += img->Border; - j1 += img->Border; - } - else { - if (i0 < 0 || i0 >= width) useBorderColor |= I0BIT; - if (i1 < 0 || i1 >= width) useBorderColor |= I1BIT; - if (j0 < 0 || j0 >= height) useBorderColor |= J0BIT; - if (j1 < 0 || j1 >= height) useBorderColor |= J1BIT; - } - - { - const GLfloat a = FRAC(u); - const GLfloat b = FRAC(v); -#if CHAN_TYPE == GL_UNSIGNED_BYTE - const GLint ia = IROUND_POS(a * ILERP_SCALE); - const GLint ib = IROUND_POS(b * ILERP_SCALE); -#endif - GLchan t00[4], t10[4], t01[4], t11[4]; /* sampled texel colors */ - - /* fetch four texel colors */ - if (useBorderColor & (I0BIT | J0BIT)) { - COPY_CHAN4(t00, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i0, j0, 0, t00); - } - if (useBorderColor & (I1BIT | J0BIT)) { - COPY_CHAN4(t10, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i1, j0, 0, t10); - } - if (useBorderColor & (I0BIT | J1BIT)) { - COPY_CHAN4(t01, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i0, j1, 0, t01); - } - if (useBorderColor & (I1BIT | J1BIT)) { - COPY_CHAN4(t11, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i1, j1, 0, t11); - } - - /* do bilinear interpolation of texel colors */ -#if CHAN_TYPE == GL_FLOAT - rgba[0] = lerp_2d(a, b, t00[0], t10[0], t01[0], t11[0]); - rgba[1] = lerp_2d(a, b, t00[1], t10[1], t01[1], t11[1]); - rgba[2] = lerp_2d(a, b, t00[2], t10[2], t01[2], t11[2]); - rgba[3] = lerp_2d(a, b, t00[3], t10[3], t01[3], t11[3]); -#elif CHAN_TYPE == GL_UNSIGNED_SHORT - rgba[0] = (GLchan) (lerp_2d(a, b, t00[0], t10[0], t01[0], t11[0]) + 0.5); - rgba[1] = (GLchan) (lerp_2d(a, b, t00[1], t10[1], t01[1], t11[1]) + 0.5); - rgba[2] = (GLchan) (lerp_2d(a, b, t00[2], t10[2], t01[2], t11[2]) + 0.5); - rgba[3] = (GLchan) (lerp_2d(a, b, t00[3], t10[3], t01[3], t11[3]) + 0.5); -#else - ASSERT(CHAN_TYPE == GL_UNSIGNED_BYTE); - rgba[0] = ilerp_2d(ia, ib, t00[0], t10[0], t01[0], t11[0]); - rgba[1] = ilerp_2d(ia, ib, t00[1], t10[1], t01[1], t11[1]); - rgba[2] = ilerp_2d(ia, ib, t00[2], t10[2], t01[2], t11[2]); - rgba[3] = ilerp_2d(ia, ib, t00[3], t10[3], t01[3], t11[3]); -#endif - } -} - - -/* - * As above, but we know WRAP_S == REPEAT and WRAP_T == REPEAT. - */ -static INLINE void -sample_2d_linear_repeat(GLcontext *ctx, - const struct gl_texture_object *tObj, - const struct gl_texture_image *img, - const GLfloat texcoord[4], - GLchan rgba[]) -{ - const GLint width = img->Width2; - const GLint height = img->Height2; - GLint i0, j0, i1, j1; - GLfloat u, v; - (void) ctx; - (void) tObj; - - ASSERT(tObj->WrapS == GL_REPEAT); - ASSERT(tObj->WrapT == GL_REPEAT); - ASSERT(img->Border == 0); - ASSERT(img->Format != GL_COLOR_INDEX); - ASSERT(img->_IsPowerOfTwo); - - COMPUTE_LINEAR_REPEAT_TEXEL_LOCATION(texcoord[0], u, width, i0, i1); - COMPUTE_LINEAR_REPEAT_TEXEL_LOCATION(texcoord[1], v, height, j0, j1); - - { - const GLfloat a = FRAC(u); - const GLfloat b = FRAC(v); -#if CHAN_TYPE == GL_UNSIGNED_BYTE - const GLint ia = IROUND_POS(a * ILERP_SCALE); - const GLint ib = IROUND_POS(b * ILERP_SCALE); -#endif - GLchan t00[4], t10[4], t01[4], t11[4]; /* sampled texel colors */ - - img->FetchTexelc(img, i0, j0, 0, t00); - img->FetchTexelc(img, i1, j0, 0, t10); - img->FetchTexelc(img, i0, j1, 0, t01); - img->FetchTexelc(img, i1, j1, 0, t11); - - /* do bilinear interpolation of texel colors */ -#if CHAN_TYPE == GL_FLOAT - rgba[0] = lerp_2d(a, b, t00[0], t10[0], t01[0], t11[0]); - rgba[1] = lerp_2d(a, b, t00[1], t10[1], t01[1], t11[1]); - rgba[2] = lerp_2d(a, b, t00[2], t10[2], t01[2], t11[2]); - rgba[3] = lerp_2d(a, b, t00[3], t10[3], t01[3], t11[3]); -#elif CHAN_TYPE == GL_UNSIGNED_SHORT - rgba[0] = (GLchan) (lerp_2d(a, b, t00[0], t10[0], t01[0], t11[0]) + 0.5); - rgba[1] = (GLchan) (lerp_2d(a, b, t00[1], t10[1], t01[1], t11[1]) + 0.5); - rgba[2] = (GLchan) (lerp_2d(a, b, t00[2], t10[2], t01[2], t11[2]) + 0.5); - rgba[3] = (GLchan) (lerp_2d(a, b, t00[3], t10[3], t01[3], t11[3]) + 0.5); -#else - ASSERT(CHAN_TYPE == GL_UNSIGNED_BYTE); - rgba[0] = ilerp_2d(ia, ib, t00[0], t10[0], t01[0], t11[0]); - rgba[1] = ilerp_2d(ia, ib, t00[1], t10[1], t01[1], t11[1]); - rgba[2] = ilerp_2d(ia, ib, t00[2], t10[2], t01[2], t11[2]); - rgba[3] = ilerp_2d(ia, ib, t00[3], t10[3], t01[3], t11[3]); -#endif - } -} - - - -static void -sample_2d_nearest_mipmap_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda[i], level); - sample_2d_nearest(ctx, tObj, tObj->Image[0][level], texcoord[i], rgba[i]); - } -} - - - -static void -sample_2d_linear_mipmap_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda[i], level); - sample_2d_linear(ctx, tObj, tObj->Image[0][level], texcoord[i], rgba[i]); - } -} - - - -static void -sample_2d_nearest_mipmap_linear(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - if (level >= tObj->_MaxLevel) { - sample_2d_nearest(ctx, tObj, tObj->Image[0][tObj->_MaxLevel], - texcoord[i], rgba[i]); - } - else { - GLchan t0[4], t1[4]; /* texels */ - const GLfloat f = FRAC(lambda[i]); - sample_2d_nearest(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0); - sample_2d_nearest(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - - -/* Trilinear filtering */ -static void -sample_2d_linear_mipmap_linear( GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - if (level >= tObj->_MaxLevel) { - sample_2d_linear(ctx, tObj, tObj->Image[0][tObj->_MaxLevel], - texcoord[i], rgba[i]); - } - else { - GLchan t0[4], t1[4]; /* texels */ - const GLfloat f = FRAC(lambda[i]); - sample_2d_linear(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0); - sample_2d_linear(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - -static void -sample_2d_linear_mipmap_linear_repeat( GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - GLuint i; - ASSERT(lambda != NULL); - ASSERT(tObj->WrapS == GL_REPEAT); - ASSERT(tObj->WrapT == GL_REPEAT); - ASSERT(tObj->_IsPowerOfTwo); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - if (level >= tObj->_MaxLevel) { - sample_2d_linear_repeat(ctx, tObj, tObj->Image[0][tObj->_MaxLevel], - texcoord[i], rgba[i]); - } - else { - GLchan t0[4], t1[4]; /* texels */ - const GLfloat f = FRAC(lambda[i]); - sample_2d_linear_repeat(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0); - sample_2d_linear_repeat(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - -static void -sample_nearest_2d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - GLuint i; - struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel]; - (void) texUnit; - (void) lambda; - for (i=0;i<n;i++) { - sample_2d_nearest(ctx, tObj, image, texcoords[i], rgba[i]); - } -} - - - -static void -sample_linear_2d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - GLuint i; - struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel]; - (void) texUnit; - (void) lambda; - if (tObj->WrapS == GL_REPEAT && tObj->WrapT == GL_REPEAT - && image->Border == 0) { - for (i=0;i<n;i++) { - sample_2d_linear_repeat(ctx, tObj, image, texcoords[i], rgba[i]); - } - } - else { - for (i=0;i<n;i++) { - sample_2d_linear(ctx, tObj, image, texcoords[i], rgba[i]); - } - } -} - - -/* - * Optimized 2-D texture sampling: - * S and T wrap mode == GL_REPEAT - * GL_NEAREST min/mag filter - * No border, - * RowStride == Width, - * Format = GL_RGB - */ -static void -opt_sample_rgb_2d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - const struct gl_texture_image *img = tObj->Image[0][tObj->BaseLevel]; - const GLfloat width = (GLfloat) img->Width; - const GLfloat height = (GLfloat) img->Height; - const GLint colMask = img->Width - 1; - const GLint rowMask = img->Height - 1; - const GLint shift = img->WidthLog2; - GLuint k; - (void) ctx; - (void) texUnit; - (void) lambda; - ASSERT(tObj->WrapS==GL_REPEAT); - ASSERT(tObj->WrapT==GL_REPEAT); - ASSERT(img->Border==0); - ASSERT(img->Format==GL_RGB); - ASSERT(img->_IsPowerOfTwo); - - for (k=0; k<n; k++) { - GLint i = IFLOOR(texcoords[k][0] * width) & colMask; - GLint j = IFLOOR(texcoords[k][1] * height) & rowMask; - GLint pos = (j << shift) | i; - GLchan *texel = ((GLchan *) img->Data) + 3*pos; - rgba[k][RCOMP] = texel[0]; - rgba[k][GCOMP] = texel[1]; - rgba[k][BCOMP] = texel[2]; - } -} - - -/* - * Optimized 2-D texture sampling: - * S and T wrap mode == GL_REPEAT - * GL_NEAREST min/mag filter - * No border - * RowStride == Width, - * Format = GL_RGBA - */ -static void -opt_sample_rgba_2d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - const struct gl_texture_image *img = tObj->Image[0][tObj->BaseLevel]; - const GLfloat width = (GLfloat) img->Width; - const GLfloat height = (GLfloat) img->Height; - const GLint colMask = img->Width - 1; - const GLint rowMask = img->Height - 1; - const GLint shift = img->WidthLog2; - GLuint i; - (void) ctx; - (void) texUnit; - (void) lambda; - ASSERT(tObj->WrapS==GL_REPEAT); - ASSERT(tObj->WrapT==GL_REPEAT); - ASSERT(img->Border==0); - ASSERT(img->Format==GL_RGBA); - ASSERT(img->_IsPowerOfTwo); - - for (i = 0; i < n; i++) { - const GLint col = IFLOOR(texcoords[i][0] * width) & colMask; - const GLint row = IFLOOR(texcoords[i][1] * height) & rowMask; - const GLint pos = (row << shift) | col; - const GLchan *texel = ((GLchan *) img->Data) + (pos << 2); /* pos*4 */ - COPY_CHAN4(rgba[i], texel); - } -} - - -/* - * Given an array of texture coordinate and lambda (level of detail) - * values, return an array of texture sample. - */ -static void -sample_lambda_2d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - const struct gl_texture_image *tImg = tObj->Image[0][tObj->BaseLevel]; - GLuint minStart, minEnd; /* texels with minification */ - GLuint magStart, magEnd; /* texels with magnification */ - - const GLboolean repeatNoBorderPOT = (tObj->WrapS == GL_REPEAT) - && (tObj->WrapT == GL_REPEAT) - && (tImg->Border == 0 && (tImg->Width == tImg->RowStride)) - && (tImg->Format != GL_COLOR_INDEX) - && tImg->_IsPowerOfTwo; - - ASSERT(lambda != NULL); - compute_min_mag_ranges(SWRAST_CONTEXT(ctx)->_MinMagThresh[texUnit], - n, lambda, &minStart, &minEnd, &magStart, &magEnd); - - if (minStart < minEnd) { - /* do the minified texels */ - const GLuint m = minEnd - minStart; - switch (tObj->MinFilter) { - case GL_NEAREST: - if (repeatNoBorderPOT) { - switch (tImg->TexFormat->MesaFormat) { - case MESA_FORMAT_RGB: - case MESA_FORMAT_RGB888: - /*case MESA_FORMAT_BGR888:*/ - opt_sample_rgb_2d(ctx, texUnit, tObj, m, texcoords + minStart, - NULL, rgba + minStart); - break; - case MESA_FORMAT_RGBA: - case MESA_FORMAT_RGBA8888: - case MESA_FORMAT_ARGB8888: - /*case MESA_FORMAT_ABGR8888:*/ - /*case MESA_FORMAT_BGRA8888:*/ - opt_sample_rgba_2d(ctx, texUnit, tObj, m, texcoords + minStart, - NULL, rgba + minStart); - break; - default: - sample_nearest_2d(ctx, texUnit, tObj, m, texcoords + minStart, - NULL, rgba + minStart ); - } - } - else { - sample_nearest_2d(ctx, texUnit, tObj, m, texcoords + minStart, - NULL, rgba + minStart); - } - break; - case GL_LINEAR: - sample_linear_2d(ctx, texUnit, tObj, m, texcoords + minStart, - NULL, rgba + minStart); - break; - case GL_NEAREST_MIPMAP_NEAREST: - sample_2d_nearest_mipmap_nearest(ctx, tObj, m, - texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR_MIPMAP_NEAREST: - sample_2d_linear_mipmap_nearest(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_NEAREST_MIPMAP_LINEAR: - sample_2d_nearest_mipmap_linear(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR_MIPMAP_LINEAR: - if (repeatNoBorderPOT) - sample_2d_linear_mipmap_linear_repeat(ctx, tObj, m, - texcoords + minStart, lambda + minStart, rgba + minStart); - else - sample_2d_linear_mipmap_linear(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - default: - _mesa_problem(ctx, "Bad min filter in sample_2d_texture"); - return; - } - } - - if (magStart < magEnd) { - /* do the magnified texels */ - const GLuint m = magEnd - magStart; - - switch (tObj->MagFilter) { - case GL_NEAREST: - if (repeatNoBorderPOT) { - switch (tImg->TexFormat->MesaFormat) { - case MESA_FORMAT_RGB: - case MESA_FORMAT_RGB888: - /*case MESA_FORMAT_BGR888:*/ - opt_sample_rgb_2d(ctx, texUnit, tObj, m, texcoords + magStart, - NULL, rgba + magStart); - break; - case MESA_FORMAT_RGBA: - case MESA_FORMAT_RGBA8888: - case MESA_FORMAT_ARGB8888: - /*case MESA_FORMAT_ABGR8888:*/ - /*case MESA_FORMAT_BGRA8888:*/ - opt_sample_rgba_2d(ctx, texUnit, tObj, m, texcoords + magStart, - NULL, rgba + magStart); - break; - default: - sample_nearest_2d(ctx, texUnit, tObj, m, texcoords + magStart, - NULL, rgba + magStart ); - } - } - else { - sample_nearest_2d(ctx, texUnit, tObj, m, texcoords + magStart, - NULL, rgba + magStart); - } - break; - case GL_LINEAR: - sample_linear_2d(ctx, texUnit, tObj, m, texcoords + magStart, - NULL, rgba + magStart); - break; - default: - _mesa_problem(ctx, "Bad mag filter in sample_lambda_2d"); - } - } -} - - - -/**********************************************************************/ -/* 3-D Texture Sampling Functions */ -/**********************************************************************/ - -/* - * Return the texture sample for coordinate (s,t,r) using GL_NEAREST filter. - */ -static void -sample_3d_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - const struct gl_texture_image *img, - const GLfloat texcoord[4], - GLchan rgba[4]) -{ - const GLint width = img->Width2; /* without border, power of two */ - const GLint height = img->Height2; /* without border, power of two */ - const GLint depth = img->Depth2; /* without border, power of two */ - GLint i, j, k; - (void) ctx; - - COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoord[0], width, i); - COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoord[1], height, j); - COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapR, texcoord[2], depth, k); - - if (i < 0 || i >= (GLint) img->Width || - j < 0 || j >= (GLint) img->Height || - k < 0 || k >= (GLint) img->Depth) { - /* Need this test for GL_CLAMP_TO_BORDER mode */ - COPY_CHAN4(rgba, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i, j, k, rgba); - } -} - - - -/* - * Return the texture sample for coordinate (s,t,r) using GL_LINEAR filter. - */ -static void -sample_3d_linear(GLcontext *ctx, - const struct gl_texture_object *tObj, - const struct gl_texture_image *img, - const GLfloat texcoord[4], - GLchan rgba[4]) -{ - const GLint width = img->Width2; - const GLint height = img->Height2; - const GLint depth = img->Depth2; - GLint i0, j0, k0, i1, j1, k1; - GLuint useBorderColor; - GLfloat u, v, w; - (void) ctx; - - COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoord[0], u, width, i0, i1); - COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapT, texcoord[1], v, height, j0, j1); - COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapR, texcoord[2], w, depth, k0, k1); - - useBorderColor = 0; - if (img->Border) { - i0 += img->Border; - i1 += img->Border; - j0 += img->Border; - j1 += img->Border; - k0 += img->Border; - k1 += img->Border; - } - else { - /* check if sampling texture border color */ - if (i0 < 0 || i0 >= width) useBorderColor |= I0BIT; - if (i1 < 0 || i1 >= width) useBorderColor |= I1BIT; - if (j0 < 0 || j0 >= height) useBorderColor |= J0BIT; - if (j1 < 0 || j1 >= height) useBorderColor |= J1BIT; - if (k0 < 0 || k0 >= depth) useBorderColor |= K0BIT; - if (k1 < 0 || k1 >= depth) useBorderColor |= K1BIT; - } - - { - const GLfloat a = FRAC(u); - const GLfloat b = FRAC(v); - const GLfloat c = FRAC(w); -#if CHAN_TYPE == GL_UNSIGNED_BYTE - const GLint ia = IROUND_POS(a * ILERP_SCALE); - const GLint ib = IROUND_POS(b * ILERP_SCALE); - const GLint ic = IROUND_POS(c * ILERP_SCALE); -#endif - GLchan t000[4], t010[4], t001[4], t011[4]; - GLchan t100[4], t110[4], t101[4], t111[4]; - - /* Fetch texels */ - if (useBorderColor & (I0BIT | J0BIT | K0BIT)) { - COPY_CHAN4(t000, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i0, j0, k0, t000); - } - if (useBorderColor & (I1BIT | J0BIT | K0BIT)) { - COPY_CHAN4(t100, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i1, j0, k0, t100); - } - if (useBorderColor & (I0BIT | J1BIT | K0BIT)) { - COPY_CHAN4(t010, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i0, j1, k0, t010); - } - if (useBorderColor & (I1BIT | J1BIT | K0BIT)) { - COPY_CHAN4(t110, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i1, j1, k0, t110); - } - - if (useBorderColor & (I0BIT | J0BIT | K1BIT)) { - COPY_CHAN4(t001, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i0, j0, k1, t001); - } - if (useBorderColor & (I1BIT | J0BIT | K1BIT)) { - COPY_CHAN4(t101, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i1, j0, k1, t101); - } - if (useBorderColor & (I0BIT | J1BIT | K1BIT)) { - COPY_CHAN4(t011, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i0, j1, k1, t011); - } - if (useBorderColor & (I1BIT | J1BIT | K1BIT)) { - COPY_CHAN4(t111, tObj->_BorderChan); - } - else { - img->FetchTexelc(img, i1, j1, k1, t111); - } - - /* trilinear interpolation of samples */ -#if CHAN_TYPE == GL_FLOAT - rgba[0] = lerp_3d(a, b, c, - t000[0], t100[0], t010[0], t110[0], - t001[0], t101[0], t011[0], t111[0]); - rgba[1] = lerp_3d(a, b, c, - t000[1], t100[1], t010[1], t110[1], - t001[1], t101[1], t011[1], t111[1]); - rgba[2] = lerp_3d(a, b, c, - t000[2], t100[2], t010[2], t110[2], - t001[2], t101[2], t011[2], t111[2]); - rgba[3] = lerp_3d(a, b, c, - t000[3], t100[3], t010[3], t110[3], - t001[3], t101[3], t011[3], t111[3]); -#elif CHAN_TYPE == GL_UNSIGNED_SHORT - rgba[0] = (GLchan) (lerp_3d(a, b, c, - t000[0], t100[0], t010[0], t110[0], - t001[0], t101[0], t011[0], t111[0]) + 0.5F); - rgba[1] = (GLchan) (lerp_3d(a, b, c, - t000[1], t100[1], t010[1], t110[1], - t001[1], t101[1], t011[1], t111[1]) + 0.5F); - rgba[2] = (GLchan) (lerp_3d(a, b, c, - t000[2], t100[2], t010[2], t110[2], - t001[2], t101[2], t011[2], t111[2]) + 0.5F); - rgba[3] = (GLchan) (lerp_3d(a, b, c, - t000[3], t100[3], t010[3], t110[3], - t001[3], t101[3], t011[3], t111[3]) + 0.5F); -#else - ASSERT(CHAN_TYPE == GL_UNSIGNED_BYTE); - rgba[0] = ilerp_3d(ia, ib, ic, - t000[0], t100[0], t010[0], t110[0], - t001[0], t101[0], t011[0], t111[0]); - rgba[1] = ilerp_3d(ia, ib, ic, - t000[1], t100[1], t010[1], t110[1], - t001[1], t101[1], t011[1], t111[1]); - rgba[2] = ilerp_3d(ia, ib, ic, - t000[2], t100[2], t010[2], t110[2], - t001[2], t101[2], t011[2], t111[2]); - rgba[3] = ilerp_3d(ia, ib, ic, - t000[3], t100[3], t010[3], t110[3], - t001[3], t101[3], t011[3], t111[3]); -#endif - } -} - - - -static void -sample_3d_nearest_mipmap_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - GLuint i; - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda[i], level); - sample_3d_nearest(ctx, tObj, tObj->Image[0][level], texcoord[i], rgba[i]); - } -} - - -static void -sample_3d_linear_mipmap_nearest(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda[i], level); - sample_3d_linear(ctx, tObj, tObj->Image[0][level], texcoord[i], rgba[i]); - } -} - - -static void -sample_3d_nearest_mipmap_linear(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - if (level >= tObj->_MaxLevel) { - sample_3d_nearest(ctx, tObj, tObj->Image[0][tObj->_MaxLevel], - texcoord[i], rgba[i]); - } - else { - GLchan t0[4], t1[4]; /* texels */ - const GLfloat f = FRAC(lambda[i]); - sample_3d_nearest(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0); - sample_3d_nearest(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - -static void -sample_3d_linear_mipmap_linear(GLcontext *ctx, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - if (level >= tObj->_MaxLevel) { - sample_3d_linear(ctx, tObj, tObj->Image[0][tObj->_MaxLevel], - texcoord[i], rgba[i]); - } - else { - GLchan t0[4], t1[4]; /* texels */ - const GLfloat f = FRAC(lambda[i]); - sample_3d_linear(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0); - sample_3d_linear(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - -static void -sample_nearest_3d(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4]) -{ - GLuint i; - struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel]; - (void) texUnit; - (void) lambda; - for (i=0;i<n;i++) { - sample_3d_nearest(ctx, tObj, image, texcoords[i], rgba[i]); - } -} - - - -static void -sample_linear_3d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4] ) -{ - GLuint i; - struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel]; - (void) texUnit; - (void) lambda; - for (i=0;i<n;i++) { - sample_3d_linear(ctx, tObj, image, texcoords[i], rgba[i]); - } -} - - -/* - * Given an (s,t,r) texture coordinate and lambda (level of detail) value, - * return a texture sample. - */ -static void -sample_lambda_3d( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4] ) -{ - GLuint minStart, minEnd; /* texels with minification */ - GLuint magStart, magEnd; /* texels with magnification */ - GLuint i; - - ASSERT(lambda != NULL); - compute_min_mag_ranges(SWRAST_CONTEXT(ctx)->_MinMagThresh[texUnit], - n, lambda, &minStart, &minEnd, &magStart, &magEnd); - - if (minStart < minEnd) { - /* do the minified texels */ - GLuint m = minEnd - minStart; - switch (tObj->MinFilter) { - case GL_NEAREST: - for (i = minStart; i < minEnd; i++) - sample_3d_nearest(ctx, tObj, tObj->Image[0][tObj->BaseLevel], - texcoords[i], rgba[i]); - break; - case GL_LINEAR: - for (i = minStart; i < minEnd; i++) - sample_3d_linear(ctx, tObj, tObj->Image[0][tObj->BaseLevel], - texcoords[i], rgba[i]); - break; - case GL_NEAREST_MIPMAP_NEAREST: - sample_3d_nearest_mipmap_nearest(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR_MIPMAP_NEAREST: - sample_3d_linear_mipmap_nearest(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_NEAREST_MIPMAP_LINEAR: - sample_3d_nearest_mipmap_linear(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR_MIPMAP_LINEAR: - sample_3d_linear_mipmap_linear(ctx, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - default: - _mesa_problem(ctx, "Bad min filter in sample_3d_texture"); - return; - } - } - - if (magStart < magEnd) { - /* do the magnified texels */ - switch (tObj->MagFilter) { - case GL_NEAREST: - for (i = magStart; i < magEnd; i++) - sample_3d_nearest(ctx, tObj, tObj->Image[0][tObj->BaseLevel], - texcoords[i], rgba[i]); - break; - case GL_LINEAR: - for (i = magStart; i < magEnd; i++) - sample_3d_linear(ctx, tObj, tObj->Image[0][tObj->BaseLevel], - texcoords[i], rgba[i]); - break; - default: - _mesa_problem(ctx, "Bad mag filter in sample_3d_texture"); - return; - } - } -} - - -/**********************************************************************/ -/* Texture Cube Map Sampling Functions */ -/**********************************************************************/ - -/* - * Choose one of six sides of a texture cube map given the texture - * coord (rx,ry,rz). Return pointer to corresponding array of texture - * images. - */ -static const struct gl_texture_image ** -choose_cube_face(const struct gl_texture_object *texObj, - const GLfloat texcoord[4], GLfloat newCoord[4]) -{ -/* - major axis - direction target sc tc ma - ---------- ------------------------------- --- --- --- - +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx - -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx - +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry - -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry - +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz - -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz -*/ - const GLfloat rx = texcoord[0]; - const GLfloat ry = texcoord[1]; - const GLfloat rz = texcoord[2]; - const struct gl_texture_image **imgArray; - const GLfloat arx = FABSF(rx), ary = FABSF(ry), arz = FABSF(rz); - GLfloat sc, tc, ma; - - if (arx > ary && arx > arz) { - if (rx >= 0.0F) { - imgArray = (const struct gl_texture_image **) texObj->Image[FACE_POS_X]; - sc = -rz; - tc = -ry; - ma = arx; - } - else { - imgArray = (const struct gl_texture_image **) texObj->Image[FACE_NEG_X]; - sc = rz; - tc = -ry; - ma = arx; - } - } - else if (ary > arx && ary > arz) { - if (ry >= 0.0F) { - imgArray = (const struct gl_texture_image **) texObj->Image[FACE_POS_Y]; - sc = rx; - tc = rz; - ma = ary; - } - else { - imgArray = (const struct gl_texture_image **) texObj->Image[FACE_NEG_Y]; - sc = rx; - tc = -rz; - ma = ary; - } - } - else { - if (rz > 0.0F) { - imgArray = (const struct gl_texture_image **) texObj->Image[FACE_POS_Z]; - sc = rx; - tc = -ry; - ma = arz; - } - else { - imgArray = (const struct gl_texture_image **) texObj->Image[FACE_NEG_Z]; - sc = -rx; - tc = -ry; - ma = arz; - } - } - - newCoord[0] = ( sc / ma + 1.0F ) * 0.5F; - newCoord[1] = ( tc / ma + 1.0F ) * 0.5F; - return imgArray; -} - - -static void -sample_nearest_cube(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4]) -{ - GLuint i; - (void) texUnit; - (void) lambda; - for (i = 0; i < n; i++) { - const struct gl_texture_image **images; - GLfloat newCoord[4]; - images = choose_cube_face(tObj, texcoords[i], newCoord); - sample_2d_nearest(ctx, tObj, images[tObj->BaseLevel], - newCoord, rgba[i]); - } -} - - -static void -sample_linear_cube(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - (void) texUnit; - (void) lambda; - for (i = 0; i < n; i++) { - const struct gl_texture_image **images; - GLfloat newCoord[4]; - images = choose_cube_face(tObj, texcoords[i], newCoord); - sample_2d_linear(ctx, tObj, images[tObj->BaseLevel], - newCoord, rgba[i]); - } -} - - -static void -sample_cube_nearest_mipmap_nearest(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - (void) texUnit; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - const struct gl_texture_image **images; - GLfloat newCoord[4]; - GLint level; - COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda[i], level); - images = choose_cube_face(tObj, texcoord[i], newCoord); - sample_2d_nearest(ctx, tObj, images[level], newCoord, rgba[i]); - } -} - - -static void -sample_cube_linear_mipmap_nearest(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - (void) texUnit; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - const struct gl_texture_image **images; - GLfloat newCoord[4]; - GLint level; - COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda[i], level); - images = choose_cube_face(tObj, texcoord[i], newCoord); - sample_2d_linear(ctx, tObj, images[level], newCoord, rgba[i]); - } -} - - -static void -sample_cube_nearest_mipmap_linear(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - (void) texUnit; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - const struct gl_texture_image **images; - GLfloat newCoord[4]; - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - images = choose_cube_face(tObj, texcoord[i], newCoord); - if (level >= tObj->_MaxLevel) { - sample_2d_nearest(ctx, tObj, images[tObj->_MaxLevel], - newCoord, rgba[i]); - } - else { - GLchan t0[4], t1[4]; /* texels */ - const GLfloat f = FRAC(lambda[i]); - sample_2d_nearest(ctx, tObj, images[level ], newCoord, t0); - sample_2d_nearest(ctx, tObj, images[level+1], newCoord, t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - -static void -sample_cube_linear_mipmap_linear(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, - GLuint n, const GLfloat texcoord[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - GLuint i; - (void) texUnit; - ASSERT(lambda != NULL); - for (i = 0; i < n; i++) { - const struct gl_texture_image **images; - GLfloat newCoord[4]; - GLint level; - COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda[i], level); - images = choose_cube_face(tObj, texcoord[i], newCoord); - if (level >= tObj->_MaxLevel) { - sample_2d_linear(ctx, tObj, images[tObj->_MaxLevel], - newCoord, rgba[i]); - } - else { - GLchan t0[4], t1[4]; - const GLfloat f = FRAC(lambda[i]); - sample_2d_linear(ctx, tObj, images[level ], newCoord, t0); - sample_2d_linear(ctx, tObj, images[level+1], newCoord, t1); - rgba[i][RCOMP] = CHAN_CAST ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]); - rgba[i][GCOMP] = CHAN_CAST ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]); - rgba[i][BCOMP] = CHAN_CAST ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]); - rgba[i][ACOMP] = CHAN_CAST ((1.0F-f) * t0[ACOMP] + f * t1[ACOMP]); - } - } -} - - -static void -sample_lambda_cube( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4]) -{ - GLuint minStart, minEnd; /* texels with minification */ - GLuint magStart, magEnd; /* texels with magnification */ - - ASSERT(lambda != NULL); - compute_min_mag_ranges(SWRAST_CONTEXT(ctx)->_MinMagThresh[texUnit], - n, lambda, &minStart, &minEnd, &magStart, &magEnd); - - if (minStart < minEnd) { - /* do the minified texels */ - const GLuint m = minEnd - minStart; - switch (tObj->MinFilter) { - case GL_NEAREST: - sample_nearest_cube(ctx, texUnit, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR: - sample_linear_cube(ctx, texUnit, tObj, m, texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_NEAREST_MIPMAP_NEAREST: - sample_cube_nearest_mipmap_nearest(ctx, texUnit, tObj, m, - texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR_MIPMAP_NEAREST: - sample_cube_linear_mipmap_nearest(ctx, texUnit, tObj, m, - texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_NEAREST_MIPMAP_LINEAR: - sample_cube_nearest_mipmap_linear(ctx, texUnit, tObj, m, - texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - case GL_LINEAR_MIPMAP_LINEAR: - sample_cube_linear_mipmap_linear(ctx, texUnit, tObj, m, - texcoords + minStart, - lambda + minStart, rgba + minStart); - break; - default: - _mesa_problem(ctx, "Bad min filter in sample_lambda_cube"); - } - } - - if (magStart < magEnd) { - /* do the magnified texels */ - const GLuint m = magEnd - magStart; - switch (tObj->MagFilter) { - case GL_NEAREST: - sample_nearest_cube(ctx, texUnit, tObj, m, texcoords + magStart, - lambda + magStart, rgba + magStart); - break; - case GL_LINEAR: - sample_linear_cube(ctx, texUnit, tObj, m, texcoords + magStart, - lambda + magStart, rgba + magStart); - break; - default: - _mesa_problem(ctx, "Bad mag filter in sample_lambda_cube"); - } - } -} - - -/**********************************************************************/ -/* Texture Rectangle Sampling Functions */ -/**********************************************************************/ - -static void -sample_nearest_rect(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4]) -{ - const struct gl_texture_image *img = tObj->Image[0][0]; - const GLfloat width = (GLfloat) img->Width; - const GLfloat height = (GLfloat) img->Height; - const GLint width_minus_1 = img->Width - 1; - const GLint height_minus_1 = img->Height - 1; - GLuint i; - - (void) ctx; - (void) texUnit; - (void) lambda; - - ASSERT(tObj->WrapS == GL_CLAMP || - tObj->WrapS == GL_CLAMP_TO_EDGE || - tObj->WrapS == GL_CLAMP_TO_BORDER); - ASSERT(tObj->WrapT == GL_CLAMP || - tObj->WrapT == GL_CLAMP_TO_EDGE || - tObj->WrapT == GL_CLAMP_TO_BORDER); - ASSERT(img->Format != GL_COLOR_INDEX); - - /* XXX move Wrap mode tests outside of loops for common cases */ - for (i = 0; i < n; i++) { - GLint row, col; - /* NOTE: we DO NOT use [0, 1] texture coordinates! */ - if (tObj->WrapS == GL_CLAMP) { - col = IFLOOR( CLAMP(texcoords[i][0], 0.0F, width - 1) ); - } - else if (tObj->WrapS == GL_CLAMP_TO_EDGE) { - col = IFLOOR( CLAMP(texcoords[i][0], 0.5F, width - 0.5F) ); - } - else { - col = IFLOOR( CLAMP(texcoords[i][0], -0.5F, width + 0.5F) ); - } - if (tObj->WrapT == GL_CLAMP) { - row = IFLOOR( CLAMP(texcoords[i][1], 0.0F, height - 1) ); - } - else if (tObj->WrapT == GL_CLAMP_TO_EDGE) { - row = IFLOOR( CLAMP(texcoords[i][1], 0.5F, height - 0.5F) ); - } - else { - row = IFLOOR( CLAMP(texcoords[i][1], -0.5F, height + 0.5F) ); - } - - if (col < 0 || col > width_minus_1 || row < 0 || row > height_minus_1) - COPY_CHAN4(rgba[i], tObj->_BorderChan); - else - img->FetchTexelc(img, col, row, 0, rgba[i]); - } -} - - -static void -sample_linear_rect(GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], - const GLfloat lambda[], GLchan rgba[][4]) -{ - const struct gl_texture_image *img = tObj->Image[0][0]; - const GLfloat width = (GLfloat) img->Width; - const GLfloat height = (GLfloat) img->Height; - const GLint width_minus_1 = img->Width - 1; - const GLint height_minus_1 = img->Height - 1; - GLuint i; - - (void) ctx; - (void) texUnit; - (void) lambda; - - ASSERT(tObj->WrapS == GL_CLAMP || - tObj->WrapS == GL_CLAMP_TO_EDGE || - tObj->WrapS == GL_CLAMP_TO_BORDER); - ASSERT(tObj->WrapT == GL_CLAMP || - tObj->WrapT == GL_CLAMP_TO_EDGE || - tObj->WrapT == GL_CLAMP_TO_BORDER); - ASSERT(img->Format != GL_COLOR_INDEX); - - /* XXX lots of opportunity for optimization in this loop */ - for (i = 0; i < n; i++) { - GLfloat frow, fcol; - GLint i0, j0, i1, j1; - GLchan t00[4], t01[4], t10[4], t11[4]; - GLfloat a, b; - GLuint useBorderColor = 0; -#if CHAN_TYPE == GL_UNSIGNED_BYTE - GLint ia, ib; -#endif - - /* NOTE: we DO NOT use [0, 1] texture coordinates! */ - if (tObj->WrapS == GL_CLAMP) { - /* Not exactly what the spec says, but it matches NVIDIA output */ - fcol = CLAMP(texcoords[i][0] - 0.5F, 0.0, width_minus_1); - i0 = IFLOOR(fcol); - i1 = i0 + 1; - } - else if (tObj->WrapS == GL_CLAMP_TO_EDGE) { - fcol = CLAMP(texcoords[i][0], 0.5F, width - 0.5F); - fcol -= 0.5F; - i0 = IFLOOR(fcol); - i1 = i0 + 1; - if (i1 > width_minus_1) - i1 = width_minus_1; - } - else { - ASSERT(tObj->WrapS == GL_CLAMP_TO_BORDER); - fcol = CLAMP(texcoords[i][0], -0.5F, width + 0.5F); - fcol -= 0.5F; - i0 = IFLOOR(fcol); - i1 = i0 + 1; - } - - if (tObj->WrapT == GL_CLAMP) { - /* Not exactly what the spec says, but it matches NVIDIA output */ - frow = CLAMP(texcoords[i][1] - 0.5F, 0.0, width_minus_1); - j0 = IFLOOR(frow); - j1 = j0 + 1; - } - else if (tObj->WrapT == GL_CLAMP_TO_EDGE) { - frow = CLAMP(texcoords[i][1], 0.5F, height - 0.5F); - frow -= 0.5F; - j0 = IFLOOR(frow); - j1 = j0 + 1; - if (j1 > height_minus_1) - j1 = height_minus_1; - } - else { - ASSERT(tObj->WrapT == GL_CLAMP_TO_BORDER); - frow = CLAMP(texcoords[i][1], -0.5F, height + 0.5F); - frow -= 0.5F; - j0 = IFLOOR(frow); - j1 = j0 + 1; - } - - /* compute integer rows/columns */ - if (i0 < 0 || i0 > width_minus_1) useBorderColor |= I0BIT; - if (i1 < 0 || i1 > width_minus_1) useBorderColor |= I1BIT; - if (j0 < 0 || j0 > height_minus_1) useBorderColor |= J0BIT; - if (j1 < 0 || j1 > height_minus_1) useBorderColor |= J1BIT; - - /* get four texel samples */ - if (useBorderColor & (I0BIT | J0BIT)) - COPY_CHAN4(t00, tObj->_BorderChan); - else - img->FetchTexelc(img, i0, j0, 0, t00); - - if (useBorderColor & (I1BIT | J0BIT)) - COPY_CHAN4(t10, tObj->_BorderChan); - else - img->FetchTexelc(img, i1, j0, 0, t10); - - if (useBorderColor & (I0BIT | J1BIT)) - COPY_CHAN4(t01, tObj->_BorderChan); - else - img->FetchTexelc(img, i0, j1, 0, t01); - - if (useBorderColor & (I1BIT | J1BIT)) - COPY_CHAN4(t11, tObj->_BorderChan); - else - img->FetchTexelc(img, i1, j1, 0, t11); - - /* compute interpolants */ - a = FRAC(fcol); - b = FRAC(frow); -#if CHAN_TYPE == GL_UNSIGNED_BYTE - ia = IROUND_POS(a * ILERP_SCALE); - ib = IROUND_POS(b * ILERP_SCALE); -#endif - - /* do bilinear interpolation of texel colors */ -#if CHAN_TYPE == GL_FLOAT - rgba[i][0] = lerp_2d(a, b, t00[0], t10[0], t01[0], t11[0]); - rgba[i][1] = lerp_2d(a, b, t00[1], t10[1], t01[1], t11[1]); - rgba[i][2] = lerp_2d(a, b, t00[2], t10[2], t01[2], t11[2]); - rgba[i][3] = lerp_2d(a, b, t00[3], t10[3], t01[3], t11[3]); -#elif CHAN_TYPE == GL_UNSIGNED_SHORT - rgba[i][0] = (GLchan) (lerp_2d(a, b, t00[0], t10[0], t01[0], t11[0]) + 0.5); - rgba[i][1] = (GLchan) (lerp_2d(a, b, t00[1], t10[1], t01[1], t11[1]) + 0.5); - rgba[i][2] = (GLchan) (lerp_2d(a, b, t00[2], t10[2], t01[2], t11[2]) + 0.5); - rgba[i][3] = (GLchan) (lerp_2d(a, b, t00[3], t10[3], t01[3], t11[3]) + 0.5); -#else - ASSERT(CHAN_TYPE == GL_UNSIGNED_BYTE); - rgba[i][0] = ilerp_2d(ia, ib, t00[0], t10[0], t01[0], t11[0]); - rgba[i][1] = ilerp_2d(ia, ib, t00[1], t10[1], t01[1], t11[1]); - rgba[i][2] = ilerp_2d(ia, ib, t00[2], t10[2], t01[2], t11[2]); - rgba[i][3] = ilerp_2d(ia, ib, t00[3], t10[3], t01[3], t11[3]); -#endif - } -} - - -static void -sample_lambda_rect( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4]) -{ - GLuint minStart, minEnd, magStart, magEnd; - - /* We only need lambda to decide between minification and magnification. - * There is no mipmapping with rectangular textures. - */ - compute_min_mag_ranges(SWRAST_CONTEXT(ctx)->_MinMagThresh[texUnit], - n, lambda, &minStart, &minEnd, &magStart, &magEnd); - - if (minStart < minEnd) { - if (tObj->MinFilter == GL_NEAREST) { - sample_nearest_rect( ctx, texUnit, tObj, minEnd - minStart, - texcoords + minStart, NULL, rgba + minStart); - } - else { - sample_linear_rect( ctx, texUnit, tObj, minEnd - minStart, - texcoords + minStart, NULL, rgba + minStart); - } - } - if (magStart < magEnd) { - if (tObj->MagFilter == GL_NEAREST) { - sample_nearest_rect( ctx, texUnit, tObj, magEnd - magStart, - texcoords + magStart, NULL, rgba + magStart); - } - else { - sample_linear_rect( ctx, texUnit, tObj, magEnd - magStart, - texcoords + magStart, NULL, rgba + magStart); - } - } -} - - - -/* - * Sample a shadow/depth texture. - */ -static void -sample_depth_texture( GLcontext *ctx, GLuint unit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan texel[][4] ) -{ - const GLint baseLevel = tObj->BaseLevel; - const struct gl_texture_image *texImage = tObj->Image[0][baseLevel]; - const GLuint width = texImage->Width; - const GLuint height = texImage->Height; - GLchan ambient; - GLenum function; - GLchan result; - - (void) lambda; - (void) unit; - - ASSERT(tObj->Image[0][tObj->BaseLevel]->Format == GL_DEPTH_COMPONENT); - ASSERT(tObj->Target == GL_TEXTURE_1D || - tObj->Target == GL_TEXTURE_2D || - tObj->Target == GL_TEXTURE_RECTANGLE_NV); - - UNCLAMPED_FLOAT_TO_CHAN(ambient, tObj->ShadowAmbient); - - /* XXXX if tObj->MinFilter != tObj->MagFilter, we're ignoring lambda */ - - /* XXX this could be precomputed and saved in the texture object */ - if (tObj->CompareFlag) { - /* GL_SGIX_shadow */ - if (tObj->CompareOperator == GL_TEXTURE_LEQUAL_R_SGIX) { - function = GL_LEQUAL; - } - else { - ASSERT(tObj->CompareOperator == GL_TEXTURE_GEQUAL_R_SGIX); - function = GL_GEQUAL; - } - } - else if (tObj->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB) { - /* GL_ARB_shadow */ - function = tObj->CompareFunc; - } - else { - function = GL_NONE; /* pass depth through as grayscale */ - } - - if (tObj->MagFilter == GL_NEAREST) { - GLuint i; - for (i = 0; i < n; i++) { - GLfloat depthSample; - GLint col, row; - /* XXX fix for texture rectangle! */ - COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoords[i][0], width, col); - COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoords[i][1], height, row); - texImage->FetchTexelf(texImage, col, row, 0, &depthSample); - - switch (function) { - case GL_LEQUAL: - result = (texcoords[i][2] <= depthSample) ? CHAN_MAX : ambient; - break; - case GL_GEQUAL: - result = (texcoords[i][2] >= depthSample) ? CHAN_MAX : ambient; - break; - case GL_LESS: - result = (texcoords[i][2] < depthSample) ? CHAN_MAX : ambient; - break; - case GL_GREATER: - result = (texcoords[i][2] > depthSample) ? CHAN_MAX : ambient; - break; - case GL_EQUAL: - result = (texcoords[i][2] == depthSample) ? CHAN_MAX : ambient; - break; - case GL_NOTEQUAL: - result = (texcoords[i][2] != depthSample) ? CHAN_MAX : ambient; - break; - case GL_ALWAYS: - result = CHAN_MAX; - break; - case GL_NEVER: - result = ambient; - break; - case GL_NONE: - CLAMPED_FLOAT_TO_CHAN(result, depthSample); - break; - default: - _mesa_problem(ctx, "Bad compare func in sample_depth_texture"); - return; - } - - switch (tObj->DepthMode) { - case GL_LUMINANCE: - texel[i][RCOMP] = result; - texel[i][GCOMP] = result; - texel[i][BCOMP] = result; - texel[i][ACOMP] = CHAN_MAX; - break; - case GL_INTENSITY: - texel[i][RCOMP] = result; - texel[i][GCOMP] = result; - texel[i][BCOMP] = result; - texel[i][ACOMP] = result; - break; - case GL_ALPHA: - texel[i][RCOMP] = 0; - texel[i][GCOMP] = 0; - texel[i][BCOMP] = 0; - texel[i][ACOMP] = result; - break; - default: - _mesa_problem(ctx, "Bad depth texture mode"); - } - } - } - else { - GLuint i; - ASSERT(tObj->MagFilter == GL_LINEAR); - for (i = 0; i < n; i++) { - GLfloat depth00, depth01, depth10, depth11; - GLint i0, i1, j0, j1; - GLfloat u, v; - GLuint useBorderTexel; - - /* XXX fix for texture rectangle! */ - COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoords[i][0], u, width, i0, i1); - COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapT, texcoords[i][1], v, height,j0, j1); - - useBorderTexel = 0; - if (texImage->Border) { - i0 += texImage->Border; - i1 += texImage->Border; - j0 += texImage->Border; - j1 += texImage->Border; - } - else { - if (i0 < 0 || i0 >= (GLint) width) useBorderTexel |= I0BIT; - if (i1 < 0 || i1 >= (GLint) width) useBorderTexel |= I1BIT; - if (j0 < 0 || j0 >= (GLint) height) useBorderTexel |= J0BIT; - if (j1 < 0 || j1 >= (GLint) height) useBorderTexel |= J1BIT; - } - - /* get four depth samples from the texture */ - if (useBorderTexel & (I0BIT | J0BIT)) { - depth00 = 1.0; - } - else { - texImage->FetchTexelf(texImage, i0, j0, 0, &depth00); - } - if (useBorderTexel & (I1BIT | J0BIT)) { - depth10 = 1.0; - } - else { - texImage->FetchTexelf(texImage, i1, j0, 0, &depth10); - } - if (useBorderTexel & (I0BIT | J1BIT)) { - depth01 = 1.0; - } - else { - texImage->FetchTexelf(texImage, i0, j1, 0, &depth01); - } - if (useBorderTexel & (I1BIT | J1BIT)) { - depth11 = 1.0; - } - else { - texImage->FetchTexelf(texImage, i1, j1, 0, &depth11); - } - - if (0) { - /* compute a single weighted depth sample and do one comparison */ - const GLfloat a = FRAC(u + 1.0F); - const GLfloat b = FRAC(v + 1.0F); - const GLfloat depthSample - = lerp_2d(a, b, depth00, depth10, depth01, depth11); - if ((depthSample <= texcoords[i][2] && function == GL_LEQUAL) || - (depthSample >= texcoords[i][2] && function == GL_GEQUAL)) { - result = ambient; - } - else { - result = CHAN_MAX; - } - } - else { - /* Do four depth/R comparisons and compute a weighted result. - * If this touches on somebody's I.P., I'll remove this code - * upon request. - */ - const GLfloat d = (CHAN_MAXF - (GLfloat) ambient) * 0.25F; - GLfloat luminance = CHAN_MAXF; - - switch (function) { - case GL_LEQUAL: - if (depth00 <= texcoords[i][2]) luminance -= d; - if (depth01 <= texcoords[i][2]) luminance -= d; - if (depth10 <= texcoords[i][2]) luminance -= d; - if (depth11 <= texcoords[i][2]) luminance -= d; - result = (GLchan) luminance; - break; - case GL_GEQUAL: - if (depth00 >= texcoords[i][2]) luminance -= d; - if (depth01 >= texcoords[i][2]) luminance -= d; - if (depth10 >= texcoords[i][2]) luminance -= d; - if (depth11 >= texcoords[i][2]) luminance -= d; - result = (GLchan) luminance; - break; - case GL_LESS: - if (depth00 < texcoords[i][2]) luminance -= d; - if (depth01 < texcoords[i][2]) luminance -= d; - if (depth10 < texcoords[i][2]) luminance -= d; - if (depth11 < texcoords[i][2]) luminance -= d; - result = (GLchan) luminance; - break; - case GL_GREATER: - if (depth00 > texcoords[i][2]) luminance -= d; - if (depth01 > texcoords[i][2]) luminance -= d; - if (depth10 > texcoords[i][2]) luminance -= d; - if (depth11 > texcoords[i][2]) luminance -= d; - result = (GLchan) luminance; - break; - case GL_EQUAL: - if (depth00 == texcoords[i][2]) luminance -= d; - if (depth01 == texcoords[i][2]) luminance -= d; - if (depth10 == texcoords[i][2]) luminance -= d; - if (depth11 == texcoords[i][2]) luminance -= d; - result = (GLchan) luminance; - break; - case GL_NOTEQUAL: - if (depth00 != texcoords[i][2]) luminance -= d; - if (depth01 != texcoords[i][2]) luminance -= d; - if (depth10 != texcoords[i][2]) luminance -= d; - if (depth11 != texcoords[i][2]) luminance -= d; - result = (GLchan) luminance; - break; - case GL_ALWAYS: - result = 0; - break; - case GL_NEVER: - result = CHAN_MAX; - break; - case GL_NONE: - /* ordinary bilinear filtering */ - { - const GLfloat a = FRAC(u + 1.0F); - const GLfloat b = FRAC(v + 1.0F); - const GLfloat depthSample - = lerp_2d(a, b, depth00, depth10, depth01, depth11); - CLAMPED_FLOAT_TO_CHAN(result, depthSample); - } - break; - default: - _mesa_problem(ctx, "Bad compare func in sample_depth_texture"); - return; - } - } - - switch (tObj->DepthMode) { - case GL_LUMINANCE: - texel[i][RCOMP] = result; - texel[i][GCOMP] = result; - texel[i][BCOMP] = result; - texel[i][ACOMP] = CHAN_MAX; - break; - case GL_INTENSITY: - texel[i][RCOMP] = result; - texel[i][GCOMP] = result; - texel[i][BCOMP] = result; - texel[i][ACOMP] = result; - break; - case GL_ALPHA: - texel[i][RCOMP] = 0; - texel[i][GCOMP] = 0; - texel[i][BCOMP] = 0; - texel[i][ACOMP] = result; - break; - default: - _mesa_problem(ctx, "Bad depth texture mode"); - } - } /* for */ - } /* if filter */ -} - - -#if 0 -/* - * Experimental depth texture sampling function. - */ -static void -sample_depth_texture2(const GLcontext *ctx, - const struct gl_texture_unit *texUnit, - GLuint n, const GLfloat texcoords[][4], - GLchan texel[][4]) -{ - const struct gl_texture_object *texObj = texUnit->_Current; - const GLint baseLevel = texObj->BaseLevel; - const struct gl_texture_image *texImage = texObj->Image[0][baseLevel]; - const GLuint width = texImage->Width; - const GLuint height = texImage->Height; - GLchan ambient; - GLboolean lequal, gequal; - - if (texObj->Target != GL_TEXTURE_2D) { - _mesa_problem(ctx, "only 2-D depth textures supported at this time"); - return; - } - - if (texObj->MinFilter != texObj->MagFilter) { - _mesa_problem(ctx, "mipmapped depth textures not supported at this time"); - return; - } - - /* XXX the GL_SGIX_shadow extension spec doesn't say what to do if - * GL_TEXTURE_COMPARE_SGIX == GL_TRUE but the current texture object - * isn't a depth texture. - */ - if (texImage->Format != GL_DEPTH_COMPONENT) { - _mesa_problem(ctx,"GL_TEXTURE_COMPARE_SGIX enabled with non-depth texture"); - return; - } - - UNCLAMPED_FLOAT_TO_CHAN(ambient, tObj->ShadowAmbient); - - if (texObj->CompareOperator == GL_TEXTURE_LEQUAL_R_SGIX) { - lequal = GL_TRUE; - gequal = GL_FALSE; - } - else { - lequal = GL_FALSE; - gequal = GL_TRUE; - } - - { - GLuint i; - for (i = 0; i < n; i++) { - const GLint K = 3; - GLint col, row, ii, jj, imin, imax, jmin, jmax, samples, count; - GLfloat w; - GLchan lum; - COMPUTE_NEAREST_TEXEL_LOCATION(texObj->WrapS, texcoords[i][0], - width, col); - COMPUTE_NEAREST_TEXEL_LOCATION(texObj->WrapT, texcoords[i][1], - height, row); - - imin = col - K; - imax = col + K; - jmin = row - K; - jmax = row + K; - - if (imin < 0) imin = 0; - if (imax >= width) imax = width - 1; - if (jmin < 0) jmin = 0; - if (jmax >= height) jmax = height - 1; - - samples = (imax - imin + 1) * (jmax - jmin + 1); - count = 0; - for (jj = jmin; jj <= jmax; jj++) { - for (ii = imin; ii <= imax; ii++) { - GLfloat depthSample; - texImage->FetchTexelf(texImage, ii, jj, 0, &depthSample); - if ((depthSample <= r[i] && lequal) || - (depthSample >= r[i] && gequal)) { - count++; - } - } - } - - w = (GLfloat) count / (GLfloat) samples; - w = CHAN_MAXF - w * (CHAN_MAXF - (GLfloat) ambient); - lum = (GLint) w; - - texel[i][RCOMP] = lum; - texel[i][GCOMP] = lum; - texel[i][BCOMP] = lum; - texel[i][ACOMP] = CHAN_MAX; - } - } -} -#endif - - -/** - * We use this function when a texture object is in an "incomplete" state. - * When a fragment program attempts to sample an incomplete texture we - * return black (see issue 23 in GL_ARB_fragment_program spec). - * Note: fragment programss don't observe the texture enable/disable flags. - */ -static void -null_sample_func( GLcontext *ctx, GLuint texUnit, - const struct gl_texture_object *tObj, GLuint n, - const GLfloat texcoords[][4], const GLfloat lambda[], - GLchan rgba[][4]) -{ - GLuint i; - (void) ctx; - (void) texUnit; - (void) tObj; - (void) texcoords; - (void) lambda; - for (i = 0; i < n; i++) { - rgba[i][RCOMP] = 0; - rgba[i][GCOMP] = 0; - rgba[i][BCOMP] = 0; - rgba[i][ACOMP] = CHAN_MAX; - } -} - - -/** - * Setup the texture sampling function for this texture object. - */ -texture_sample_func -_swrast_choose_texture_sample_func( GLcontext *ctx, - const struct gl_texture_object *t ) -{ - if (!t || !t->Complete) { - return &null_sample_func; - } - else { - const GLboolean needLambda = (GLboolean) (t->MinFilter != t->MagFilter); - const GLenum format = t->Image[0][t->BaseLevel]->Format; - - switch (t->Target) { - case GL_TEXTURE_1D: - if (format == GL_DEPTH_COMPONENT) { - return &sample_depth_texture; - } - else if (needLambda) { - return &sample_lambda_1d; - } - else if (t->MinFilter == GL_LINEAR) { - return &sample_linear_1d; - } - else { - ASSERT(t->MinFilter == GL_NEAREST); - return &sample_nearest_1d; - } - case GL_TEXTURE_2D: - if (format == GL_DEPTH_COMPONENT) { - return &sample_depth_texture; - } - else if (needLambda) { - return &sample_lambda_2d; - } - else if (t->MinFilter == GL_LINEAR) { - return &sample_linear_2d; - } - else { - GLint baseLevel = t->BaseLevel; - ASSERT(t->MinFilter == GL_NEAREST); - if (t->WrapS == GL_REPEAT && - t->WrapT == GL_REPEAT && - t->_IsPowerOfTwo && - t->Image[0][baseLevel]->Border == 0 && - t->Image[0][baseLevel]->TexFormat->MesaFormat == MESA_FORMAT_RGB) { - return &opt_sample_rgb_2d; - } - else if (t->WrapS == GL_REPEAT && - t->WrapT == GL_REPEAT && - t->_IsPowerOfTwo && - t->Image[0][baseLevel]->Border == 0 && - t->Image[0][baseLevel]->TexFormat->MesaFormat == MESA_FORMAT_RGBA) { - return &opt_sample_rgba_2d; - } - else { - return &sample_nearest_2d; - } - } - case GL_TEXTURE_3D: - if (needLambda) { - return &sample_lambda_3d; - } - else if (t->MinFilter == GL_LINEAR) { - return &sample_linear_3d; - } - else { - ASSERT(t->MinFilter == GL_NEAREST); - return &sample_nearest_3d; - } - case GL_TEXTURE_CUBE_MAP: - if (needLambda) { - return &sample_lambda_cube; - } - else if (t->MinFilter == GL_LINEAR) { - return &sample_linear_cube; - } - else { - ASSERT(t->MinFilter == GL_NEAREST); - return &sample_nearest_cube; - } - case GL_TEXTURE_RECTANGLE_NV: - if (needLambda) { - return &sample_lambda_rect; - } - else if (t->MinFilter == GL_LINEAR) { - return &sample_linear_rect; - } - else { - ASSERT(t->MinFilter == GL_NEAREST); - return &sample_nearest_rect; - } - default: - _mesa_problem(ctx, - "invalid target in _swrast_choose_texture_sample_func"); - return &null_sample_func; - } - } -} - - -#define PROD(A,B) ( (GLuint)(A) * ((GLuint)(B)+1) ) -#define S_PROD(A,B) ( (GLint)(A) * ((GLint)(B)+1) ) - - -/** - * Do texture application for GL_ARB/EXT_texture_env_combine. - * This function also supports GL_{EXT,ARB}_texture_env_dot3 and - * GL_ATI_texture_env_combine3. Since "classic" texture environments are - * implemented using GL_ARB_texture_env_combine-like state, this same function - * is used for classic texture environment application as well. - * - * \param ctx rendering context - * \param textureUnit the texture unit to apply - * \param n number of fragments to process (span width) - * \param primary_rgba incoming fragment color array - * \param texelBuffer pointer to texel colors for all texture units - * - * \param rgba incoming colors, which get modified here - */ -static INLINE void -texture_combine( const GLcontext *ctx, GLuint unit, GLuint n, - CONST GLchan (*primary_rgba)[4], - CONST GLchan *texelBuffer, - GLchan (*rgba)[4] ) -{ - const struct gl_texture_unit *textureUnit = &(ctx->Texture.Unit[unit]); - const GLchan (*argRGB [3])[4]; - const GLchan (*argA [3])[4]; - const GLuint RGBshift = textureUnit->_CurrentCombine->ScaleShiftRGB; - const GLuint Ashift = textureUnit->_CurrentCombine->ScaleShiftA; -#if CHAN_TYPE == GL_FLOAT - const GLchan RGBmult = (GLfloat) (1 << RGBshift); - const GLchan Amult = (GLfloat) (1 << Ashift); - static const GLchan one[4] = { 1.0, 1.0, 1.0, 1.0 }; - static const GLchan zero[4] = { 0.0, 0.0, 0.0, 0.0 }; -#else - const GLint half = (CHAN_MAX + 1) / 2; - static const GLchan one[4] = { CHAN_MAX, CHAN_MAX, CHAN_MAX, CHAN_MAX }; - static const GLchan zero[4] = { 0, 0, 0, 0 }; -#endif - GLuint i, j; - GLuint numColorArgs; - GLuint numAlphaArgs; - - /* GLchan ccolor[3][4]; */ - DEFMNARRAY(GLchan, ccolor, 3, 3 * MAX_WIDTH, 4); /* mac 32k limitation */ - CHECKARRAY(ccolor, return); /* mac 32k limitation */ - - ASSERT(ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine); - ASSERT(SWRAST_CONTEXT(ctx)->_AnyTextureCombine); - - - /* - printf("modeRGB 0x%x modeA 0x%x srcRGB1 0x%x srcA1 0x%x srcRGB2 0x%x srcA2 0x%x\n", - textureUnit->_CurrentCombine->ModeRGB, - textureUnit->_CurrentCombine->ModeA, - textureUnit->_CurrentCombine->SourceRGB[0], - textureUnit->_CurrentCombine->SourceA[0], - textureUnit->_CurrentCombine->SourceRGB[1], - textureUnit->_CurrentCombine->SourceA[1]); - */ - - /* - * Do operand setup for up to 3 operands. Loop over the terms. - */ - numColorArgs = textureUnit->_CurrentCombine->_NumArgsRGB; - numAlphaArgs = textureUnit->_CurrentCombine->_NumArgsA; - - for (j = 0; j < numColorArgs; j++) { - const GLenum srcRGB = textureUnit->_CurrentCombine->SourceRGB[j]; - - - switch (srcRGB) { - case GL_TEXTURE: - argRGB[j] = (const GLchan (*)[4]) - (texelBuffer + unit * (n * 4 * sizeof(GLchan))); - break; - case GL_PRIMARY_COLOR: - argRGB[j] = primary_rgba; - break; - case GL_PREVIOUS: - argRGB[j] = (const GLchan (*)[4]) rgba; - break; - case GL_CONSTANT: - { - GLchan (*c)[4] = ccolor[j]; - GLchan red, green, blue, alpha; - UNCLAMPED_FLOAT_TO_CHAN(red, textureUnit->EnvColor[0]); - UNCLAMPED_FLOAT_TO_CHAN(green, textureUnit->EnvColor[1]); - UNCLAMPED_FLOAT_TO_CHAN(blue, textureUnit->EnvColor[2]); - UNCLAMPED_FLOAT_TO_CHAN(alpha, textureUnit->EnvColor[3]); - for (i = 0; i < n; i++) { - c[i][RCOMP] = red; - c[i][GCOMP] = green; - c[i][BCOMP] = blue; - c[i][ACOMP] = alpha; - } - argRGB[j] = (const GLchan (*)[4]) ccolor[j]; - } - break; - /* GL_ATI_texture_env_combine3 allows GL_ZERO & GL_ONE as sources. - */ - case GL_ZERO: - argRGB[j] = & zero; - break; - case GL_ONE: - argRGB[j] = & one; - break; - default: - /* ARB_texture_env_crossbar source */ - { - const GLuint srcUnit = srcRGB - GL_TEXTURE0; - ASSERT(srcUnit < ctx->Const.MaxTextureUnits); - if (!ctx->Texture.Unit[srcUnit]._ReallyEnabled) - return; - argRGB[j] = (const GLchan (*)[4]) - (texelBuffer + srcUnit * (n * 4 * sizeof(GLchan))); - } - } - - if (textureUnit->_CurrentCombine->OperandRGB[j] != GL_SRC_COLOR) { - const GLchan (*src)[4] = argRGB[j]; - GLchan (*dst)[4] = ccolor[j]; - - /* point to new arg[j] storage */ - argRGB[j] = (const GLchan (*)[4]) ccolor[j]; - - if (textureUnit->_CurrentCombine->OperandRGB[j] == GL_ONE_MINUS_SRC_COLOR) { - for (i = 0; i < n; i++) { - dst[i][RCOMP] = CHAN_MAX - src[i][RCOMP]; - dst[i][GCOMP] = CHAN_MAX - src[i][GCOMP]; - dst[i][BCOMP] = CHAN_MAX - src[i][BCOMP]; - } - } - else if (textureUnit->_CurrentCombine->OperandRGB[j] == GL_SRC_ALPHA) { - for (i = 0; i < n; i++) { - dst[i][RCOMP] = src[i][ACOMP]; - dst[i][GCOMP] = src[i][ACOMP]; - dst[i][BCOMP] = src[i][ACOMP]; - } - } - else { - ASSERT(textureUnit->_CurrentCombine->OperandRGB[j] ==GL_ONE_MINUS_SRC_ALPHA); - for (i = 0; i < n; i++) { - dst[i][RCOMP] = CHAN_MAX - src[i][ACOMP]; - dst[i][GCOMP] = CHAN_MAX - src[i][ACOMP]; - dst[i][BCOMP] = CHAN_MAX - src[i][ACOMP]; - } - } - } - } - - - for (j = 0; j < numAlphaArgs; j++) { - const GLenum srcA = textureUnit->_CurrentCombine->SourceA[j]; - - switch (srcA) { - case GL_TEXTURE: - argA[j] = (const GLchan (*)[4]) - (texelBuffer + unit * (n * 4 * sizeof(GLchan))); - break; - case GL_PRIMARY_COLOR: - argA[j] = primary_rgba; - break; - case GL_PREVIOUS: - argA[j] = (const GLchan (*)[4]) rgba; - break; - case GL_CONSTANT: - { - GLchan alpha, (*c)[4] = ccolor[j]; - UNCLAMPED_FLOAT_TO_CHAN(alpha, textureUnit->EnvColor[3]); - for (i = 0; i < n; i++) - c[i][ACOMP] = alpha; - argA[j] = (const GLchan (*)[4]) ccolor[j]; - } - break; - /* GL_ATI_texture_env_combine3 allows GL_ZERO & GL_ONE as sources. - */ - case GL_ZERO: - argA[j] = & zero; - break; - case GL_ONE: - argA[j] = & one; - break; - default: - /* ARB_texture_env_crossbar source */ - { - const GLuint srcUnit = srcA - GL_TEXTURE0; - ASSERT(srcUnit < ctx->Const.MaxTextureUnits); - if (!ctx->Texture.Unit[srcUnit]._ReallyEnabled) - return; - argA[j] = (const GLchan (*)[4]) - (texelBuffer + srcUnit * (n * 4 * sizeof(GLchan))); - } - } - - if (textureUnit->_CurrentCombine->OperandA[j] == GL_ONE_MINUS_SRC_ALPHA) { - const GLchan (*src)[4] = argA[j]; - GLchan (*dst)[4] = ccolor[j]; - argA[j] = (const GLchan (*)[4]) ccolor[j]; - for (i = 0; i < n; i++) { - dst[i][ACOMP] = CHAN_MAX - src[i][ACOMP]; - } - } - } - - /* - * Do the texture combine. - */ - switch (textureUnit->_CurrentCombine->ModeRGB) { - case GL_REPLACE: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - if (RGBshift) { - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = arg0[i][RCOMP] * RGBmult; - rgba[i][GCOMP] = arg0[i][GCOMP] * RGBmult; - rgba[i][BCOMP] = arg0[i][BCOMP] * RGBmult; -#else - GLuint r = (GLuint) arg0[i][RCOMP] << RGBshift; - GLuint g = (GLuint) arg0[i][GCOMP] << RGBshift; - GLuint b = (GLuint) arg0[i][BCOMP] << RGBshift; - rgba[i][RCOMP] = MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = MIN2(b, CHAN_MAX); -#endif - } - } - else { - for (i = 0; i < n; i++) { - rgba[i][RCOMP] = arg0[i][RCOMP]; - rgba[i][GCOMP] = arg0[i][GCOMP]; - rgba[i][BCOMP] = arg0[i][BCOMP]; - } - } - } - break; - case GL_MODULATE: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - RGBshift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = arg0[i][RCOMP] * arg1[i][RCOMP] * RGBmult; - rgba[i][GCOMP] = arg0[i][GCOMP] * arg1[i][GCOMP] * RGBmult; - rgba[i][BCOMP] = arg0[i][BCOMP] * arg1[i][BCOMP] * RGBmult; -#else - GLuint r = PROD(arg0[i][RCOMP], arg1[i][RCOMP]) >> shift; - GLuint g = PROD(arg0[i][GCOMP], arg1[i][GCOMP]) >> shift; - GLuint b = PROD(arg0[i][BCOMP], arg1[i][BCOMP]) >> shift; - rgba[i][RCOMP] = (GLchan) MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) MIN2(b, CHAN_MAX); -#endif - } - } - break; - case GL_ADD: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = (arg0[i][RCOMP] + arg1[i][RCOMP]) * RGBmult; - rgba[i][GCOMP] = (arg0[i][GCOMP] + arg1[i][GCOMP]) * RGBmult; - rgba[i][BCOMP] = (arg0[i][BCOMP] + arg1[i][BCOMP]) * RGBmult; -#else - GLint r = ((GLint) arg0[i][RCOMP] + (GLint) arg1[i][RCOMP]) << RGBshift; - GLint g = ((GLint) arg0[i][GCOMP] + (GLint) arg1[i][GCOMP]) << RGBshift; - GLint b = ((GLint) arg0[i][BCOMP] + (GLint) arg1[i][BCOMP]) << RGBshift; - rgba[i][RCOMP] = (GLchan) MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) MIN2(b, CHAN_MAX); -#endif - } - } - break; - case GL_ADD_SIGNED: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = (arg0[i][RCOMP] + arg1[i][RCOMP] - 0.5) * RGBmult; - rgba[i][GCOMP] = (arg0[i][GCOMP] + arg1[i][GCOMP] - 0.5) * RGBmult; - rgba[i][BCOMP] = (arg0[i][BCOMP] + arg1[i][BCOMP] - 0.5) * RGBmult; -#else - GLint r = (GLint) arg0[i][RCOMP] + (GLint) arg1[i][RCOMP] -half; - GLint g = (GLint) arg0[i][GCOMP] + (GLint) arg1[i][GCOMP] -half; - GLint b = (GLint) arg0[i][BCOMP] + (GLint) arg1[i][BCOMP] -half; - r = (r < 0) ? 0 : r << RGBshift; - g = (g < 0) ? 0 : g << RGBshift; - b = (b < 0) ? 0 : b << RGBshift; - rgba[i][RCOMP] = (GLchan) MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) MIN2(b, CHAN_MAX); -#endif - } - } - break; - case GL_INTERPOLATE: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - const GLchan (*arg2)[4] = (const GLchan (*)[4]) argRGB[2]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - RGBshift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = (arg0[i][RCOMP] * arg2[i][RCOMP] + - arg1[i][RCOMP] * (CHAN_MAXF - arg2[i][RCOMP])) * RGBmult; - rgba[i][GCOMP] = (arg0[i][GCOMP] * arg2[i][GCOMP] + - arg1[i][GCOMP] * (CHAN_MAXF - arg2[i][GCOMP])) * RGBmult; - rgba[i][BCOMP] = (arg0[i][BCOMP] * arg2[i][BCOMP] + - arg1[i][BCOMP] * (CHAN_MAXF - arg2[i][BCOMP])) * RGBmult; -#else - GLuint r = (PROD(arg0[i][RCOMP], arg2[i][RCOMP]) - + PROD(arg1[i][RCOMP], CHAN_MAX - arg2[i][RCOMP])) - >> shift; - GLuint g = (PROD(arg0[i][GCOMP], arg2[i][GCOMP]) - + PROD(arg1[i][GCOMP], CHAN_MAX - arg2[i][GCOMP])) - >> shift; - GLuint b = (PROD(arg0[i][BCOMP], arg2[i][BCOMP]) - + PROD(arg1[i][BCOMP], CHAN_MAX - arg2[i][BCOMP])) - >> shift; - rgba[i][RCOMP] = (GLchan) MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) MIN2(b, CHAN_MAX); -#endif - } - } - break; - case GL_SUBTRACT: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = (arg0[i][RCOMP] - arg1[i][RCOMP]) * RGBmult; - rgba[i][GCOMP] = (arg0[i][GCOMP] - arg1[i][GCOMP]) * RGBmult; - rgba[i][BCOMP] = (arg0[i][BCOMP] - arg1[i][BCOMP]) * RGBmult; -#else - GLint r = ((GLint) arg0[i][RCOMP] - (GLint) arg1[i][RCOMP]) << RGBshift; - GLint g = ((GLint) arg0[i][GCOMP] - (GLint) arg1[i][GCOMP]) << RGBshift; - GLint b = ((GLint) arg0[i][BCOMP] - (GLint) arg1[i][BCOMP]) << RGBshift; - rgba[i][RCOMP] = (GLchan) CLAMP(r, 0, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) CLAMP(g, 0, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) CLAMP(b, 0, CHAN_MAX); -#endif - } - } - break; - case GL_DOT3_RGB_EXT: - case GL_DOT3_RGBA_EXT: - { - /* Do not scale the result by 1 2 or 4 */ - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - GLchan dot = ((arg0[i][RCOMP]-0.5F) * (arg1[i][RCOMP]-0.5F) + - (arg0[i][GCOMP]-0.5F) * (arg1[i][GCOMP]-0.5F) + - (arg0[i][BCOMP]-0.5F) * (arg1[i][BCOMP]-0.5F)) - * 4.0F; - dot = CLAMP(dot, 0.0F, CHAN_MAXF); -#else - GLint dot = (S_PROD((GLint)arg0[i][RCOMP] - half, - (GLint)arg1[i][RCOMP] - half) + - S_PROD((GLint)arg0[i][GCOMP] - half, - (GLint)arg1[i][GCOMP] - half) + - S_PROD((GLint)arg0[i][BCOMP] - half, - (GLint)arg1[i][BCOMP] - half)) >> 6; - dot = CLAMP(dot, 0, CHAN_MAX); -#endif - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = (GLchan) dot; - } - } - break; - case GL_DOT3_RGB: - case GL_DOT3_RGBA: - { - /* DO scale the result by 1 2 or 4 */ - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - GLchan dot = ((arg0[i][RCOMP]-0.5F) * (arg1[i][RCOMP]-0.5F) + - (arg0[i][GCOMP]-0.5F) * (arg1[i][GCOMP]-0.5F) + - (arg0[i][BCOMP]-0.5F) * (arg1[i][BCOMP]-0.5F)) - * 4.0F * RGBmult; - dot = CLAMP(dot, 0.0, CHAN_MAXF); -#else - GLint dot = (S_PROD((GLint)arg0[i][RCOMP] - half, - (GLint)arg1[i][RCOMP] - half) + - S_PROD((GLint)arg0[i][GCOMP] - half, - (GLint)arg1[i][GCOMP] - half) + - S_PROD((GLint)arg0[i][BCOMP] - half, - (GLint)arg1[i][BCOMP] - half)) >> 6; - dot <<= RGBshift; - dot = CLAMP(dot, 0, CHAN_MAX); -#endif - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = (GLchan) dot; - } - } - break; - case GL_MODULATE_ADD_ATI: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - const GLchan (*arg2)[4] = (const GLchan (*)[4]) argRGB[2]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - RGBshift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = ((arg0[i][RCOMP] * arg2[i][RCOMP]) + arg1[i][RCOMP]) * RGBmult; - rgba[i][GCOMP] = ((arg0[i][GCOMP] * arg2[i][GCOMP]) + arg1[i][GCOMP]) * RGBmult; - rgba[i][BCOMP] = ((arg0[i][BCOMP] * arg2[i][BCOMP]) + arg1[i][BCOMP]) * RGBmult; -#else - GLuint r = (PROD(arg0[i][RCOMP], arg2[i][RCOMP]) - + ((GLuint) arg1[i][RCOMP] << CHAN_BITS)) >> shift; - GLuint g = (PROD(arg0[i][GCOMP], arg2[i][GCOMP]) - + ((GLuint) arg1[i][GCOMP] << CHAN_BITS)) >> shift; - GLuint b = (PROD(arg0[i][BCOMP], arg2[i][BCOMP]) - + ((GLuint) arg1[i][BCOMP] << CHAN_BITS)) >> shift; - rgba[i][RCOMP] = (GLchan) MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) MIN2(b, CHAN_MAX); -#endif - } - } - break; - case GL_MODULATE_SIGNED_ADD_ATI: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - const GLchan (*arg2)[4] = (const GLchan (*)[4]) argRGB[2]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - RGBshift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = ((arg0[i][RCOMP] * arg2[i][RCOMP]) + arg1[i][RCOMP] - 0.5) * RGBmult; - rgba[i][GCOMP] = ((arg0[i][GCOMP] * arg2[i][GCOMP]) + arg1[i][GCOMP] - 0.5) * RGBmult; - rgba[i][BCOMP] = ((arg0[i][BCOMP] * arg2[i][BCOMP]) + arg1[i][BCOMP] - 0.5) * RGBmult; -#else - GLint r = (S_PROD(arg0[i][RCOMP], arg2[i][RCOMP]) - + (((GLint) arg1[i][RCOMP] - half) << CHAN_BITS)) - >> shift; - GLint g = (S_PROD(arg0[i][GCOMP], arg2[i][GCOMP]) - + (((GLint) arg1[i][GCOMP] - half) << CHAN_BITS)) - >> shift; - GLint b = (S_PROD(arg0[i][BCOMP], arg2[i][BCOMP]) - + (((GLint) arg1[i][BCOMP] - half) << CHAN_BITS)) - >> shift; - rgba[i][RCOMP] = (GLchan) CLAMP(r, 0, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) CLAMP(g, 0, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) CLAMP(b, 0, CHAN_MAX); -#endif - } - } - break; - case GL_MODULATE_SUBTRACT_ATI: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argRGB[1]; - const GLchan (*arg2)[4] = (const GLchan (*)[4]) argRGB[2]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - RGBshift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][RCOMP] = ((arg0[i][RCOMP] * arg2[i][RCOMP]) - arg1[i][RCOMP]) * RGBmult; - rgba[i][GCOMP] = ((arg0[i][GCOMP] * arg2[i][GCOMP]) - arg1[i][GCOMP]) * RGBmult; - rgba[i][BCOMP] = ((arg0[i][BCOMP] * arg2[i][BCOMP]) - arg1[i][BCOMP]) * RGBmult; -#else - GLint r = (S_PROD(arg0[i][RCOMP], arg2[i][RCOMP]) - - ((GLint) arg1[i][RCOMP] << CHAN_BITS)) - >> shift; - GLint g = (S_PROD(arg0[i][GCOMP], arg2[i][GCOMP]) - - ((GLint) arg1[i][GCOMP] << CHAN_BITS)) - >> shift; - GLint b = (S_PROD(arg0[i][BCOMP], arg2[i][BCOMP]) - - ((GLint) arg1[i][BCOMP] << CHAN_BITS)) - >> shift; - rgba[i][RCOMP] = (GLchan) CLAMP(r, 0, CHAN_MAX); - rgba[i][GCOMP] = (GLchan) CLAMP(g, 0, CHAN_MAX); - rgba[i][BCOMP] = (GLchan) CLAMP(b, 0, CHAN_MAX); -#endif - } - } - break; - default: - _mesa_problem(ctx, "invalid combine mode"); - } - - switch (textureUnit->_CurrentCombine->ModeA) { - case GL_REPLACE: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - if (Ashift) { - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - GLchan a = arg0[i][ACOMP] * Amult; -#else - GLuint a = (GLuint) arg0[i][ACOMP] << Ashift; -#endif - rgba[i][ACOMP] = (GLchan) MIN2(a, CHAN_MAX); - } - } - else { - for (i = 0; i < n; i++) { - rgba[i][ACOMP] = arg0[i][ACOMP]; - } - } - } - break; - case GL_MODULATE: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argA[1]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - Ashift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = arg0[i][ACOMP] * arg1[i][ACOMP] * Amult; -#else - GLuint a = (PROD(arg0[i][ACOMP], arg1[i][ACOMP]) >> shift); - rgba[i][ACOMP] = (GLchan) MIN2(a, CHAN_MAX); -#endif - } - } - break; - case GL_ADD: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argA[1]; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = (arg0[i][ACOMP] + arg1[i][ACOMP]) * Amult; -#else - GLint a = ((GLint) arg0[i][ACOMP] + arg1[i][ACOMP]) << Ashift; - rgba[i][ACOMP] = (GLchan) MIN2(a, CHAN_MAX); -#endif - } - } - break; - case GL_ADD_SIGNED: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argA[1]; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = (arg0[i][ACOMP] + arg1[i][ACOMP] - 0.5F) * Amult; -#else - GLint a = (GLint) arg0[i][ACOMP] + (GLint) arg1[i][ACOMP] -half; - a = (a < 0) ? 0 : a << Ashift; - rgba[i][ACOMP] = (GLchan) MIN2(a, CHAN_MAX); -#endif - } - } - break; - case GL_INTERPOLATE: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argA[1]; - const GLchan (*arg2)[4] = (const GLchan (*)[4]) argA[2]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - Ashift; -#endif - for (i=0; i<n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = (arg0[i][ACOMP] * arg2[i][ACOMP] + - arg1[i][ACOMP] * (CHAN_MAXF - arg2[i][ACOMP])) - * Amult; -#else - GLuint a = (PROD(arg0[i][ACOMP], arg2[i][ACOMP]) - + PROD(arg1[i][ACOMP], CHAN_MAX - arg2[i][ACOMP])) - >> shift; - rgba[i][ACOMP] = (GLchan) MIN2(a, CHAN_MAX); -#endif - } - } - break; - case GL_SUBTRACT: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argA[1]; - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = (arg0[i][ACOMP] - arg1[i][ACOMP]) * Amult; -#else - GLint a = ((GLint) arg0[i][ACOMP] - (GLint) arg1[i][ACOMP]) << Ashift; - rgba[i][ACOMP] = (GLchan) CLAMP(a, 0, CHAN_MAX); -#endif - } - } - break; - case GL_MODULATE_ADD_ATI: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argA[1]; - const GLchan (*arg2)[4] = (const GLchan (*)[4]) argA[2]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - Ashift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = ((arg0[i][ACOMP] * arg2[i][ACOMP]) + arg1[i][ACOMP]) * Amult; -#else - GLint a = (PROD(arg0[i][ACOMP], arg2[i][ACOMP]) - + ((GLuint) arg1[i][ACOMP] << CHAN_BITS)) - >> shift; - rgba[i][ACOMP] = (GLchan) CLAMP(a, 0, CHAN_MAX); -#endif - } - } - break; - case GL_MODULATE_SIGNED_ADD_ATI: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argA[1]; - const GLchan (*arg2)[4] = (const GLchan (*)[4]) argA[2]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - Ashift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = ((arg0[i][ACOMP] * arg2[i][ACOMP]) + arg1[i][ACOMP] - 0.5F) * Amult; -#else - GLint a = (S_PROD(arg0[i][ACOMP], arg2[i][ACOMP]) - + (((GLint) arg1[i][ACOMP] - half) << CHAN_BITS)) - >> shift; - rgba[i][ACOMP] = (GLchan) CLAMP(a, 0, CHAN_MAX); -#endif - } - } - break; - case GL_MODULATE_SUBTRACT_ATI: - { - const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0]; - const GLchan (*arg1)[4] = (const GLchan (*)[4]) argA[1]; - const GLchan (*arg2)[4] = (const GLchan (*)[4]) argA[2]; -#if CHAN_TYPE != GL_FLOAT - const GLint shift = CHAN_BITS - Ashift; -#endif - for (i = 0; i < n; i++) { -#if CHAN_TYPE == GL_FLOAT - rgba[i][ACOMP] = ((arg0[i][ACOMP] * arg2[i][ACOMP]) - arg1[i][ACOMP]) * Amult; -#else - GLint a = (S_PROD(arg0[i][ACOMP], arg2[i][ACOMP]) - - ((GLint) arg1[i][ACOMP] << CHAN_BITS)) - >> shift; - rgba[i][ACOMP] = (GLchan) CLAMP(a, 0, CHAN_MAX); -#endif - } - } - break; - default: - _mesa_problem(ctx, "invalid combine mode"); - } - - /* Fix the alpha component for GL_DOT3_RGBA_EXT/ARB combining. - * This is kind of a kludge. It would have been better if the spec - * were written such that the GL_COMBINE_ALPHA value could be set to - * GL_DOT3. - */ - if (textureUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA_EXT || - textureUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA) { - for (i = 0; i < n; i++) { - rgba[i][ACOMP] = rgba[i][RCOMP]; - } - } - UNDEFARRAY(ccolor); /* mac 32k limitation */ -} -#undef PROD - - -/** - * Apply a conventional OpenGL texture env mode (REPLACE, ADD, BLEND, - * MODULATE, or DECAL) to an array of fragments. - * Input: textureUnit - pointer to texture unit to apply - * format - base internal texture format - * n - number of fragments - * primary_rgba - primary colors (may alias rgba for single texture) - * texels - array of texel colors - * InOut: rgba - incoming fragment colors modified by texel colors - * according to the texture environment mode. - */ -static void -texture_apply( const GLcontext *ctx, - const struct gl_texture_unit *texUnit, - GLuint n, - CONST GLchan primary_rgba[][4], CONST GLchan texel[][4], - GLchan rgba[][4] ) -{ - GLint baseLevel; - GLuint i; - GLint Rc, Gc, Bc, Ac; - GLenum format; - (void) primary_rgba; - - ASSERT(texUnit); - ASSERT(texUnit->_Current); - - baseLevel = texUnit->_Current->BaseLevel; - ASSERT(texUnit->_Current->Image[0][baseLevel]); - - format = texUnit->_Current->Image[0][baseLevel]->Format; - - if (format == GL_COLOR_INDEX || format == GL_YCBCR_MESA) { - format = GL_RGBA; /* a bit of a hack */ - } - else if (format == GL_DEPTH_COMPONENT) { - format = texUnit->_Current->DepthMode; - } - - switch (texUnit->EnvMode) { - case GL_REPLACE: - switch (format) { - case GL_ALPHA: - for (i=0;i<n;i++) { - /* Cv = Cf */ - /* Av = At */ - rgba[i][ACOMP] = texel[i][ACOMP]; - } - break; - case GL_LUMINANCE: - for (i=0;i<n;i++) { - /* Cv = Lt */ - GLchan Lt = texel[i][RCOMP]; - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = Lt; - /* Av = Af */ - } - break; - case GL_LUMINANCE_ALPHA: - for (i=0;i<n;i++) { - GLchan Lt = texel[i][RCOMP]; - /* Cv = Lt */ - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = Lt; - /* Av = At */ - rgba[i][ACOMP] = texel[i][ACOMP]; - } - break; - case GL_INTENSITY: - for (i=0;i<n;i++) { - /* Cv = It */ - GLchan It = texel[i][RCOMP]; - rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = It; - /* Av = It */ - rgba[i][ACOMP] = It; - } - break; - case GL_RGB: - for (i=0;i<n;i++) { - /* Cv = Ct */ - rgba[i][RCOMP] = texel[i][RCOMP]; - rgba[i][GCOMP] = texel[i][GCOMP]; - rgba[i][BCOMP] = texel[i][BCOMP]; - /* Av = Af */ - } - break; - case GL_RGBA: - for (i=0;i<n;i++) { - /* Cv = Ct */ - rgba[i][RCOMP] = texel[i][RCOMP]; - rgba[i][GCOMP] = texel[i][GCOMP]; - rgba[i][BCOMP] = texel[i][BCOMP]; - /* Av = At */ - rgba[i][ACOMP] = texel[i][ACOMP]; - } - break; - default: - _mesa_problem(ctx, "Bad format (GL_REPLACE) in texture_apply"); - return; - } - break; - - case GL_MODULATE: - switch (format) { - case GL_ALPHA: - for (i=0;i<n;i++) { - /* Cv = Cf */ - /* Av = AfAt */ - rgba[i][ACOMP] = CHAN_PRODUCT( rgba[i][ACOMP], texel[i][ACOMP] ); - } - break; - case GL_LUMINANCE: - for (i=0;i<n;i++) { - /* Cv = LtCf */ - GLchan Lt = texel[i][RCOMP]; - rgba[i][RCOMP] = CHAN_PRODUCT( rgba[i][RCOMP], Lt ); - rgba[i][GCOMP] = CHAN_PRODUCT( rgba[i][GCOMP], Lt ); - rgba[i][BCOMP] = CHAN_PRODUCT( rgba[i][BCOMP], Lt ); - /* Av = Af */ - } - break; - case GL_LUMINANCE_ALPHA: - for (i=0;i<n;i++) { - /* Cv = CfLt */ - GLchan Lt = texel[i][RCOMP]; - rgba[i][RCOMP] = CHAN_PRODUCT( rgba[i][RCOMP], Lt ); - rgba[i][GCOMP] = CHAN_PRODUCT( rgba[i][GCOMP], Lt ); - rgba[i][BCOMP] = CHAN_PRODUCT( rgba[i][BCOMP], Lt ); - /* Av = AfAt */ - rgba[i][ACOMP] = CHAN_PRODUCT( rgba[i][ACOMP], texel[i][ACOMP] ); - } - break; - case GL_INTENSITY: - for (i=0;i<n;i++) { - /* Cv = CfIt */ - GLchan It = texel[i][RCOMP]; - rgba[i][RCOMP] = CHAN_PRODUCT( rgba[i][RCOMP], It ); - rgba[i][GCOMP] = CHAN_PRODUCT( rgba[i][GCOMP], It ); - rgba[i][BCOMP] = CHAN_PRODUCT( rgba[i][BCOMP], It ); - /* Av = AfIt */ - rgba[i][ACOMP] = CHAN_PRODUCT( rgba[i][ACOMP], It ); - } - break; - case GL_RGB: - for (i=0;i<n;i++) { - /* Cv = CfCt */ - rgba[i][RCOMP] = CHAN_PRODUCT( rgba[i][RCOMP], texel[i][RCOMP] ); - rgba[i][GCOMP] = CHAN_PRODUCT( rgba[i][GCOMP], texel[i][GCOMP] ); - rgba[i][BCOMP] = CHAN_PRODUCT( rgba[i][BCOMP], texel[i][BCOMP] ); - /* Av = Af */ - } - break; - case GL_RGBA: - for (i=0;i<n;i++) { - /* Cv = CfCt */ - rgba[i][RCOMP] = CHAN_PRODUCT( rgba[i][RCOMP], texel[i][RCOMP] ); - rgba[i][GCOMP] = CHAN_PRODUCT( rgba[i][GCOMP], texel[i][GCOMP] ); - rgba[i][BCOMP] = CHAN_PRODUCT( rgba[i][BCOMP], texel[i][BCOMP] ); - /* Av = AfAt */ - rgba[i][ACOMP] = CHAN_PRODUCT( rgba[i][ACOMP], texel[i][ACOMP] ); - } - break; - default: - _mesa_problem(ctx, "Bad format (GL_MODULATE) in texture_apply"); - return; - } - break; - - case GL_DECAL: - switch (format) { - case GL_ALPHA: - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_INTENSITY: - /* undefined */ - break; - case GL_RGB: - for (i=0;i<n;i++) { - /* Cv = Ct */ - rgba[i][RCOMP] = texel[i][RCOMP]; - rgba[i][GCOMP] = texel[i][GCOMP]; - rgba[i][BCOMP] = texel[i][BCOMP]; - /* Av = Af */ - } - break; - case GL_RGBA: - for (i=0;i<n;i++) { - /* Cv = Cf(1-At) + CtAt */ - GLint t = texel[i][ACOMP], s = CHAN_MAX - t; - rgba[i][RCOMP] = CHAN_PRODUCT(rgba[i][RCOMP], s) + CHAN_PRODUCT(texel[i][RCOMP],t); - rgba[i][GCOMP] = CHAN_PRODUCT(rgba[i][GCOMP], s) + CHAN_PRODUCT(texel[i][GCOMP],t); - rgba[i][BCOMP] = CHAN_PRODUCT(rgba[i][BCOMP], s) + CHAN_PRODUCT(texel[i][BCOMP],t); - /* Av = Af */ - } - break; - default: - _mesa_problem(ctx, "Bad format (GL_DECAL) in texture_apply"); - return; - } - break; - - case GL_BLEND: - Rc = (GLint) (texUnit->EnvColor[0] * CHAN_MAXF); - Gc = (GLint) (texUnit->EnvColor[1] * CHAN_MAXF); - Bc = (GLint) (texUnit->EnvColor[2] * CHAN_MAXF); - Ac = (GLint) (texUnit->EnvColor[3] * CHAN_MAXF); - switch (format) { - case GL_ALPHA: - for (i=0;i<n;i++) { - /* Cv = Cf */ - /* Av = AfAt */ - rgba[i][ACOMP] = CHAN_PRODUCT(rgba[i][ACOMP], texel[i][ACOMP]); - } - break; - case GL_LUMINANCE: - for (i=0;i<n;i++) { - /* Cv = Cf(1-Lt) + CcLt */ - GLchan Lt = texel[i][RCOMP], s = CHAN_MAX - Lt; - rgba[i][RCOMP] = CHAN_PRODUCT(rgba[i][RCOMP], s) + CHAN_PRODUCT(Rc, Lt); - rgba[i][GCOMP] = CHAN_PRODUCT(rgba[i][GCOMP], s) + CHAN_PRODUCT(Gc, Lt); - rgba[i][BCOMP] = CHAN_PRODUCT(rgba[i][BCOMP], s) + CHAN_PRODUCT(Bc, Lt); - /* Av = Af */ - } - break; - case GL_LUMINANCE_ALPHA: - for (i=0;i<n;i++) { - /* Cv = Cf(1-Lt) + CcLt */ - GLchan Lt = texel[i][RCOMP], s = CHAN_MAX - Lt; - rgba[i][RCOMP] = CHAN_PRODUCT(rgba[i][RCOMP], s) + CHAN_PRODUCT(Rc, Lt); - rgba[i][GCOMP] = CHAN_PRODUCT(rgba[i][GCOMP], s) + CHAN_PRODUCT(Gc, Lt); - rgba[i][BCOMP] = CHAN_PRODUCT(rgba[i][BCOMP], s) + CHAN_PRODUCT(Bc, Lt); - /* Av = AfAt */ - rgba[i][ACOMP] = CHAN_PRODUCT(rgba[i][ACOMP],texel[i][ACOMP]); - } - break; - case GL_INTENSITY: - for (i=0;i<n;i++) { - /* Cv = Cf(1-It) + CcIt */ - GLchan It = texel[i][RCOMP], s = CHAN_MAX - It; - rgba[i][RCOMP] = CHAN_PRODUCT(rgba[i][RCOMP], s) + CHAN_PRODUCT(Rc, It); - rgba[i][GCOMP] = CHAN_PRODUCT(rgba[i][GCOMP], s) + CHAN_PRODUCT(Gc, It); - rgba[i][BCOMP] = CHAN_PRODUCT(rgba[i][BCOMP], s) + CHAN_PRODUCT(Bc, It); - /* Av = Af(1-It) + Ac*It */ - rgba[i][ACOMP] = CHAN_PRODUCT(rgba[i][ACOMP], s) + CHAN_PRODUCT(Ac, It); - } - break; - case GL_RGB: - for (i=0;i<n;i++) { - /* Cv = Cf(1-Ct) + CcCt */ - rgba[i][RCOMP] = CHAN_PRODUCT(rgba[i][RCOMP], (CHAN_MAX-texel[i][RCOMP])) + CHAN_PRODUCT(Rc,texel[i][RCOMP]); - rgba[i][GCOMP] = CHAN_PRODUCT(rgba[i][GCOMP], (CHAN_MAX-texel[i][GCOMP])) + CHAN_PRODUCT(Gc,texel[i][GCOMP]); - rgba[i][BCOMP] = CHAN_PRODUCT(rgba[i][BCOMP], (CHAN_MAX-texel[i][BCOMP])) + CHAN_PRODUCT(Bc,texel[i][BCOMP]); - /* Av = Af */ - } - break; - case GL_RGBA: - for (i=0;i<n;i++) { - /* Cv = Cf(1-Ct) + CcCt */ - rgba[i][RCOMP] = CHAN_PRODUCT(rgba[i][RCOMP], (CHAN_MAX-texel[i][RCOMP])) + CHAN_PRODUCT(Rc,texel[i][RCOMP]); - rgba[i][GCOMP] = CHAN_PRODUCT(rgba[i][GCOMP], (CHAN_MAX-texel[i][GCOMP])) + CHAN_PRODUCT(Gc,texel[i][GCOMP]); - rgba[i][BCOMP] = CHAN_PRODUCT(rgba[i][BCOMP], (CHAN_MAX-texel[i][BCOMP])) + CHAN_PRODUCT(Bc,texel[i][BCOMP]); - /* Av = AfAt */ - rgba[i][ACOMP] = CHAN_PRODUCT(rgba[i][ACOMP],texel[i][ACOMP]); - } - break; - default: - _mesa_problem(ctx, "Bad format (GL_BLEND) in texture_apply"); - return; - } - break; - - /* XXX don't clamp results if GLchan is float??? */ - - case GL_ADD: /* GL_EXT_texture_add_env */ - switch (format) { - case GL_ALPHA: - for (i=0;i<n;i++) { - /* Rv = Rf */ - /* Gv = Gf */ - /* Bv = Bf */ - rgba[i][ACOMP] = CHAN_PRODUCT(rgba[i][ACOMP], texel[i][ACOMP]); - } - break; - case GL_LUMINANCE: - for (i=0;i<n;i++) { - GLuint Lt = texel[i][RCOMP]; - GLuint r = rgba[i][RCOMP] + Lt; - GLuint g = rgba[i][GCOMP] + Lt; - GLuint b = rgba[i][BCOMP] + Lt; - rgba[i][RCOMP] = MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = MIN2(b, CHAN_MAX); - /* Av = Af */ - } - break; - case GL_LUMINANCE_ALPHA: - for (i=0;i<n;i++) { - GLuint Lt = texel[i][RCOMP]; - GLuint r = rgba[i][RCOMP] + Lt; - GLuint g = rgba[i][GCOMP] + Lt; - GLuint b = rgba[i][BCOMP] + Lt; - rgba[i][RCOMP] = MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = MIN2(b, CHAN_MAX); - rgba[i][ACOMP] = CHAN_PRODUCT(rgba[i][ACOMP], texel[i][ACOMP]); - } - break; - case GL_INTENSITY: - for (i=0;i<n;i++) { - GLchan It = texel[i][RCOMP]; - GLuint r = rgba[i][RCOMP] + It; - GLuint g = rgba[i][GCOMP] + It; - GLuint b = rgba[i][BCOMP] + It; - GLuint a = rgba[i][ACOMP] + It; - rgba[i][RCOMP] = MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = MIN2(b, CHAN_MAX); - rgba[i][ACOMP] = MIN2(a, CHAN_MAX); - } - break; - case GL_RGB: - for (i=0;i<n;i++) { - GLuint r = rgba[i][RCOMP] + texel[i][RCOMP]; - GLuint g = rgba[i][GCOMP] + texel[i][GCOMP]; - GLuint b = rgba[i][BCOMP] + texel[i][BCOMP]; - rgba[i][RCOMP] = MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = MIN2(b, CHAN_MAX); - /* Av = Af */ - } - break; - case GL_RGBA: - for (i=0;i<n;i++) { - GLuint r = rgba[i][RCOMP] + texel[i][RCOMP]; - GLuint g = rgba[i][GCOMP] + texel[i][GCOMP]; - GLuint b = rgba[i][BCOMP] + texel[i][BCOMP]; - rgba[i][RCOMP] = MIN2(r, CHAN_MAX); - rgba[i][GCOMP] = MIN2(g, CHAN_MAX); - rgba[i][BCOMP] = MIN2(b, CHAN_MAX); - rgba[i][ACOMP] = CHAN_PRODUCT(rgba[i][ACOMP], texel[i][ACOMP]); - } - break; - default: - _mesa_problem(ctx, "Bad format (GL_ADD) in texture_apply"); - return; - } - break; - - default: - _mesa_problem(ctx, "Bad env mode in texture_apply"); - return; - } -} - - - -/** - * Apply texture mapping to a span of fragments. - */ -void -_swrast_texture_span( GLcontext *ctx, struct sw_span *span ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLchan primary_rgba[MAX_WIDTH][4]; - GLuint unit; - - ASSERT(span->end < MAX_WIDTH); - ASSERT(span->arrayMask & SPAN_TEXTURE); - - /* - * Save copy of the incoming fragment colors (the GL_PRIMARY_COLOR) - */ - if (swrast->_AnyTextureCombine) - MEMCPY(primary_rgba, span->array->rgba, 4 * span->end * sizeof(GLchan)); - - /* - * Must do all texture sampling before combining in order to - * accomodate GL_ARB_texture_env_crossbar. - */ - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { - if (ctx->Texture.Unit[unit]._ReallyEnabled) { - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - const struct gl_texture_object *curObj = texUnit->_Current; - GLfloat *lambda = span->array->lambda[unit]; - GLchan (*texels)[4] = (GLchan (*)[4]) - (swrast->TexelBuffer + unit * (span->end * 4 * sizeof(GLchan))); - - /* adjust texture lod (lambda) */ - if (span->arrayMask & SPAN_LAMBDA) { - if (texUnit->LodBias + curObj->LodBias != 0.0F) { - /* apply LOD bias, but don't clamp yet */ - const GLfloat bias = CLAMP(texUnit->LodBias + curObj->LodBias, - -ctx->Const.MaxTextureLodBias, - ctx->Const.MaxTextureLodBias); - GLuint i; - for (i = 0; i < span->end; i++) { - lambda[i] += bias; - } - } - - if (curObj->MinLod != -1000.0 || curObj->MaxLod != 1000.0) { - /* apply LOD clamping to lambda */ - const GLfloat min = curObj->MinLod; - const GLfloat max = curObj->MaxLod; - GLuint i; - for (i = 0; i < span->end; i++) { - GLfloat l = lambda[i]; - lambda[i] = CLAMP(l, min, max); - } - } - } - - /* Sample the texture (span->end fragments) */ - swrast->TextureSample[unit]( ctx, unit, texUnit->_Current, span->end, - (const GLfloat (*)[4]) span->array->texcoords[unit], - lambda, texels ); - - /* GL_SGI_texture_color_table */ - if (texUnit->ColorTableEnabled) { - _mesa_lookup_rgba_chan(&texUnit->ColorTable, span->end, texels); - } - } - } - - /* - * OK, now apply the texture (aka texture combine/blend). - * We modify the span->color.rgba values. - */ - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { - if (ctx->Texture.Unit[unit]._ReallyEnabled) { - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - if (texUnit->_CurrentCombine != &texUnit->_EnvMode ) { - texture_combine( ctx, unit, span->end, - (CONST GLchan (*)[4]) primary_rgba, - swrast->TexelBuffer, - span->array->rgba ); - } - else { - /* conventional texture blend */ - const GLchan (*texels)[4] = (const GLchan (*)[4]) - (swrast->TexelBuffer + unit * - (span->end * 4 * sizeof(GLchan))); - texture_apply( ctx, texUnit, span->end, - (CONST GLchan (*)[4]) primary_rgba, texels, - span->array->rgba ); - } - } - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_texture.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_texture.h deleted file mode 100644 index 698f363a1..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_texture.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_TEXTURE_H -#define S_TEXTURE_H - - -#include "mtypes.h" -#include "swrast.h" - - -extern texture_sample_func -_swrast_choose_texture_sample_func( GLcontext *ctx, - const struct gl_texture_object *tObj ); - - -extern void -_swrast_texture_span( GLcontext *ctx, struct sw_span *span ); - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_triangle.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_triangle.c deleted file mode 100644 index 16dea9477..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_triangle.c +++ /dev/null @@ -1,1175 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * When the device driver doesn't implement triangle rasterization it - * can hook in _swrast_Triangle, which eventually calls one of these - * functions to draw triangles. - */ - -#include "glheader.h" -#include "context.h" -#include "colormac.h" -#include "imports.h" -#include "macros.h" -#include "texformat.h" - -#include "s_aatriangle.h" -#include "s_context.h" -#include "s_depth.h" -#include "s_feedback.h" -#include "s_span.h" -#include "s_triangle.h" - - -/* - * Just used for feedback mode. - */ -GLboolean -_swrast_culltriangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - GLfloat ex = v1->win[0] - v0->win[0]; - GLfloat ey = v1->win[1] - v0->win[1]; - GLfloat fx = v2->win[0] - v0->win[0]; - GLfloat fy = v2->win[1] - v0->win[1]; - GLfloat c = ex*fy-ey*fx; - - if (c * SWRAST_CONTEXT(ctx)->_BackfaceSign > 0) - return 0; - - return 1; -} - - - -/* - * Render a flat-shaded color index triangle. - */ -#define NAME flat_ci_triangle -#define INTERP_Z 1 -#define INTERP_FOG 1 -#define SETUP_CODE \ - span.interpMask |= SPAN_INDEX; \ - span.index = FloatToFixed(v2->index);\ - span.indexStep = 0; -#define RENDER_SPAN( span ) _swrast_write_index_span(ctx, &span); -#include "s_tritemp.h" - - - -/* - * Render a smooth-shaded color index triangle. - */ -#define NAME smooth_ci_triangle -#define INTERP_Z 1 -#define INTERP_FOG 1 -#define INTERP_INDEX 1 -#define RENDER_SPAN( span ) _swrast_write_index_span(ctx, &span); -#include "s_tritemp.h" - - - -/* - * Render a flat-shaded RGBA triangle. - */ -#define NAME flat_rgba_triangle -#define INTERP_Z 1 -#define INTERP_FOG 1 -#define SETUP_CODE \ - ASSERT(ctx->Texture._EnabledCoordUnits == 0);\ - ASSERT(ctx->Light.ShadeModel==GL_FLAT); \ - span.interpMask |= SPAN_RGBA; \ - span.red = ChanToFixed(v2->color[0]); \ - span.green = ChanToFixed(v2->color[1]); \ - span.blue = ChanToFixed(v2->color[2]); \ - span.alpha = ChanToFixed(v2->color[3]); \ - span.redStep = 0; \ - span.greenStep = 0; \ - span.blueStep = 0; \ - span.alphaStep = 0; -#define RENDER_SPAN( span ) _swrast_write_rgba_span(ctx, &span); -#include "s_tritemp.h" - - - -/* - * Render a smooth-shaded RGBA triangle. - */ -#define NAME smooth_rgba_triangle -#define INTERP_Z 1 -#define INTERP_FOG 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define SETUP_CODE \ - { \ - /* texturing must be off */ \ - ASSERT(ctx->Texture._EnabledCoordUnits == 0); \ - ASSERT(ctx->Light.ShadeModel==GL_SMOOTH); \ - } -#define RENDER_SPAN( span ) _swrast_write_rgba_span(ctx, &span); -#include "s_tritemp.h" - - - -/* - * Render an RGB, GL_DECAL, textured triangle. - * Interpolate S,T only w/out mipmapping or perspective correction. - * - * No fog. - */ -#define NAME simple_textured_triangle -#define INTERP_INT_TEX 1 -#define S_SCALE twidth -#define T_SCALE theight - -#define SETUP_CODE \ - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0][0];\ - struct gl_texture_object *obj = ctx->Texture.Unit[0].Current2D; \ - const GLint b = obj->BaseLevel; \ - const GLfloat twidth = (GLfloat) obj->Image[0][b]->Width; \ - const GLfloat theight = (GLfloat) obj->Image[0][b]->Height; \ - const GLint twidth_log2 = obj->Image[0][b]->WidthLog2; \ - const GLchan *texture = (const GLchan *) obj->Image[0][b]->Data; \ - const GLint smask = obj->Image[0][b]->Width - 1; \ - const GLint tmask = obj->Image[0][b]->Height - 1; \ - if (!texture) { \ - /* this shouldn't happen */ \ - return; \ - } - -#define RENDER_SPAN( span ) \ - GLuint i; \ - span.intTex[0] -= FIXED_HALF; /* off-by-one error? */ \ - span.intTex[1] -= FIXED_HALF; \ - for (i = 0; i < span.end; i++) { \ - GLint s = FixedToInt(span.intTex[0]) & smask; \ - GLint t = FixedToInt(span.intTex[1]) & tmask; \ - GLint pos = (t << twidth_log2) + s; \ - pos = pos + pos + pos; /* multiply by 3 */ \ - span.array->rgb[i][RCOMP] = texture[pos]; \ - span.array->rgb[i][GCOMP] = texture[pos+1]; \ - span.array->rgb[i][BCOMP] = texture[pos+2]; \ - span.intTex[0] += span.intTexStep[0]; \ - span.intTex[1] += span.intTexStep[1]; \ - } \ - rb->PutRowRGB(ctx, rb, span.end, span.x, span.y, span.array->rgb, NULL); - -#include "s_tritemp.h" - - - -/* - * Render an RGB, GL_DECAL, textured triangle. - * Interpolate S,T, GL_LESS depth test, w/out mipmapping or - * perspective correction. - * Depth buffer bits must be <= sizeof(DEFAULT_SOFTWARE_DEPTH_TYPE) - * - * No fog. - */ -#define NAME simple_z_textured_triangle -#define INTERP_Z 1 -#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE -#define INTERP_INT_TEX 1 -#define S_SCALE twidth -#define T_SCALE theight - -#define SETUP_CODE \ - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0][0];\ - struct gl_texture_object *obj = ctx->Texture.Unit[0].Current2D; \ - const GLint b = obj->BaseLevel; \ - const GLfloat twidth = (GLfloat) obj->Image[0][b]->Width; \ - const GLfloat theight = (GLfloat) obj->Image[0][b]->Height; \ - const GLint twidth_log2 = obj->Image[0][b]->WidthLog2; \ - const GLchan *texture = (const GLchan *) obj->Image[0][b]->Data; \ - const GLint smask = obj->Image[0][b]->Width - 1; \ - const GLint tmask = obj->Image[0][b]->Height - 1; \ - if (!texture) { \ - /* this shouldn't happen */ \ - return; \ - } - -#define RENDER_SPAN( span ) \ - GLuint i; \ - span.intTex[0] -= FIXED_HALF; /* off-by-one error? */ \ - span.intTex[1] -= FIXED_HALF; \ - for (i = 0; i < span.end; i++) { \ - const GLdepth z = FixedToDepth(span.z); \ - if (z < zRow[i]) { \ - GLint s = FixedToInt(span.intTex[0]) & smask; \ - GLint t = FixedToInt(span.intTex[1]) & tmask; \ - GLint pos = (t << twidth_log2) + s; \ - pos = pos + pos + pos; /* multiply by 3 */ \ - span.array->rgb[i][RCOMP] = texture[pos]; \ - span.array->rgb[i][GCOMP] = texture[pos+1]; \ - span.array->rgb[i][BCOMP] = texture[pos+2]; \ - zRow[i] = z; \ - span.array->mask[i] = 1; \ - } \ - else { \ - span.array->mask[i] = 0; \ - } \ - span.intTex[0] += span.intTexStep[0]; \ - span.intTex[1] += span.intTexStep[1]; \ - span.z += span.zStep; \ - } \ - rb->PutRowRGB(ctx, rb, span.end, span.x, span.y, \ - span.array->rgb, span.array->mask); - -#include "s_tritemp.h" - - - -#if CHAN_TYPE != GL_FLOAT - -struct affine_info -{ - GLenum filter; - GLenum format; - GLenum envmode; - GLint smask, tmask; - GLint twidth_log2; - const GLchan *texture; - GLfixed er, eg, eb, ea; - GLint tbytesline, tsize; -}; - - -static INLINE GLint -ilerp(GLint t, GLint a, GLint b) -{ - return a + ((t * (b - a)) >> FIXED_SHIFT); -} - -static INLINE GLint -ilerp_2d(GLint ia, GLint ib, GLint v00, GLint v10, GLint v01, GLint v11) -{ - const GLint temp0 = ilerp(ia, v00, v10); - const GLint temp1 = ilerp(ia, v01, v11); - return ilerp(ib, temp0, temp1); -} - - -/* This function can handle GL_NEAREST or GL_LINEAR sampling of 2D RGB or RGBA - * textures with GL_REPLACE, GL_MODULATE, GL_BLEND, GL_DECAL or GL_ADD - * texture env modes. - */ -static INLINE void -affine_span(GLcontext *ctx, struct sw_span *span, - struct affine_info *info) -{ - GLchan sample[4]; /* the filtered texture sample */ - - /* Instead of defining a function for each mode, a test is done - * between the outer and inner loops. This is to reduce code size - * and complexity. Observe that an optimizing compiler kills - * unused variables (for instance tf,sf,ti,si in case of GL_NEAREST). - */ - -#define NEAREST_RGB \ - sample[RCOMP] = tex00[RCOMP]; \ - sample[GCOMP] = tex00[GCOMP]; \ - sample[BCOMP] = tex00[BCOMP]; \ - sample[ACOMP] = CHAN_MAX - -#define LINEAR_RGB \ - sample[RCOMP] = ilerp_2d(sf, tf, tex00[0], tex01[0], tex10[0], tex11[0]);\ - sample[GCOMP] = ilerp_2d(sf, tf, tex00[1], tex01[1], tex10[1], tex11[1]);\ - sample[BCOMP] = ilerp_2d(sf, tf, tex00[2], tex01[2], tex10[2], tex11[2]);\ - sample[ACOMP] = CHAN_MAX; - -#define NEAREST_RGBA COPY_CHAN4(sample, tex00) - -#define LINEAR_RGBA \ - sample[RCOMP] = ilerp_2d(sf, tf, tex00[0], tex01[0], tex10[0], tex11[0]);\ - sample[GCOMP] = ilerp_2d(sf, tf, tex00[1], tex01[1], tex10[1], tex11[1]);\ - sample[BCOMP] = ilerp_2d(sf, tf, tex00[2], tex01[2], tex10[2], tex11[2]);\ - sample[ACOMP] = ilerp_2d(sf, tf, tex00[3], tex01[3], tex10[3], tex11[3]) - -#define MODULATE \ - dest[RCOMP] = span->red * (sample[RCOMP] + 1u) >> (FIXED_SHIFT + 8); \ - dest[GCOMP] = span->green * (sample[GCOMP] + 1u) >> (FIXED_SHIFT + 8); \ - dest[BCOMP] = span->blue * (sample[BCOMP] + 1u) >> (FIXED_SHIFT + 8); \ - dest[ACOMP] = span->alpha * (sample[ACOMP] + 1u) >> (FIXED_SHIFT + 8) - -#define DECAL \ - dest[RCOMP] = ((CHAN_MAX - sample[ACOMP]) * span->red + \ - ((sample[ACOMP] + 1) * sample[RCOMP] << FIXED_SHIFT)) \ - >> (FIXED_SHIFT + 8); \ - dest[GCOMP] = ((CHAN_MAX - sample[ACOMP]) * span->green + \ - ((sample[ACOMP] + 1) * sample[GCOMP] << FIXED_SHIFT)) \ - >> (FIXED_SHIFT + 8); \ - dest[BCOMP] = ((CHAN_MAX - sample[ACOMP]) * span->blue + \ - ((sample[ACOMP] + 1) * sample[BCOMP] << FIXED_SHIFT)) \ - >> (FIXED_SHIFT + 8); \ - dest[ACOMP] = FixedToInt(span->alpha) - -#define BLEND \ - dest[RCOMP] = ((CHAN_MAX - sample[RCOMP]) * span->red \ - + (sample[RCOMP] + 1) * info->er) >> (FIXED_SHIFT + 8); \ - dest[GCOMP] = ((CHAN_MAX - sample[GCOMP]) * span->green \ - + (sample[GCOMP] + 1) * info->eg) >> (FIXED_SHIFT + 8); \ - dest[BCOMP] = ((CHAN_MAX - sample[BCOMP]) * span->blue \ - + (sample[BCOMP] + 1) * info->eb) >> (FIXED_SHIFT + 8); \ - dest[ACOMP] = span->alpha * (sample[ACOMP] + 1) >> (FIXED_SHIFT + 8) - -#define REPLACE COPY_CHAN4(dest, sample) - -#define ADD \ - { \ - GLint rSum = FixedToInt(span->red) + (GLint) sample[RCOMP]; \ - GLint gSum = FixedToInt(span->green) + (GLint) sample[GCOMP]; \ - GLint bSum = FixedToInt(span->blue) + (GLint) sample[BCOMP]; \ - dest[RCOMP] = MIN2(rSum, CHAN_MAX); \ - dest[GCOMP] = MIN2(gSum, CHAN_MAX); \ - dest[BCOMP] = MIN2(bSum, CHAN_MAX); \ - dest[ACOMP] = span->alpha * (sample[ACOMP] + 1) >> (FIXED_SHIFT + 8); \ - } - -/* shortcuts */ - -#define NEAREST_RGB_REPLACE \ - NEAREST_RGB; \ - dest[0] = sample[0]; \ - dest[1] = sample[1]; \ - dest[2] = sample[2]; \ - dest[3] = FixedToInt(span->alpha); - -#define NEAREST_RGBA_REPLACE COPY_CHAN4(dest, tex00) - -#define SPAN_NEAREST(DO_TEX, COMPS) \ - for (i = 0; i < span->end; i++) { \ - /* Isn't it necessary to use FixedFloor below?? */ \ - GLint s = FixedToInt(span->intTex[0]) & info->smask; \ - GLint t = FixedToInt(span->intTex[1]) & info->tmask; \ - GLint pos = (t << info->twidth_log2) + s; \ - const GLchan *tex00 = info->texture + COMPS * pos; \ - DO_TEX; \ - span->red += span->redStep; \ - span->green += span->greenStep; \ - span->blue += span->blueStep; \ - span->alpha += span->alphaStep; \ - span->intTex[0] += span->intTexStep[0]; \ - span->intTex[1] += span->intTexStep[1]; \ - dest += 4; \ - } - -#define SPAN_LINEAR(DO_TEX, COMPS) \ - for (i = 0; i < span->end; i++) { \ - /* Isn't it necessary to use FixedFloor below?? */ \ - const GLint s = FixedToInt(span->intTex[0]) & info->smask; \ - const GLint t = FixedToInt(span->intTex[1]) & info->tmask; \ - const GLfixed sf = span->intTex[0] & FIXED_FRAC_MASK; \ - const GLfixed tf = span->intTex[1] & FIXED_FRAC_MASK; \ - const GLint pos = (t << info->twidth_log2) + s; \ - const GLchan *tex00 = info->texture + COMPS * pos; \ - const GLchan *tex10 = tex00 + info->tbytesline; \ - const GLchan *tex01 = tex00 + COMPS; \ - const GLchan *tex11 = tex10 + COMPS; \ - if (t == info->tmask) { \ - tex10 -= info->tsize; \ - tex11 -= info->tsize; \ - } \ - if (s == info->smask) { \ - tex01 -= info->tbytesline; \ - tex11 -= info->tbytesline; \ - } \ - DO_TEX; \ - span->red += span->redStep; \ - span->green += span->greenStep; \ - span->blue += span->blueStep; \ - span->alpha += span->alphaStep; \ - span->intTex[0] += span->intTexStep[0]; \ - span->intTex[1] += span->intTexStep[1]; \ - dest += 4; \ - } - - - GLuint i; - GLchan *dest = span->array->rgba[0]; - - span->intTex[0] -= FIXED_HALF; - span->intTex[1] -= FIXED_HALF; - switch (info->filter) { - case GL_NEAREST: - switch (info->format) { - case GL_RGB: - switch (info->envmode) { - case GL_MODULATE: - SPAN_NEAREST(NEAREST_RGB;MODULATE,3); - break; - case GL_DECAL: - case GL_REPLACE: - SPAN_NEAREST(NEAREST_RGB_REPLACE,3); - break; - case GL_BLEND: - SPAN_NEAREST(NEAREST_RGB;BLEND,3); - break; - case GL_ADD: - SPAN_NEAREST(NEAREST_RGB;ADD,3); - break; - default: - _mesa_problem(ctx, "bad tex env mode in SPAN_LINEAR"); - return; - } - break; - case GL_RGBA: - switch(info->envmode) { - case GL_MODULATE: - SPAN_NEAREST(NEAREST_RGBA;MODULATE,4); - break; - case GL_DECAL: - SPAN_NEAREST(NEAREST_RGBA;DECAL,4); - break; - case GL_BLEND: - SPAN_NEAREST(NEAREST_RGBA;BLEND,4); - break; - case GL_ADD: - SPAN_NEAREST(NEAREST_RGBA;ADD,4); - break; - case GL_REPLACE: - SPAN_NEAREST(NEAREST_RGBA_REPLACE,4); - break; - default: - _mesa_problem(ctx, "bad tex env mode (2) in SPAN_LINEAR"); - return; - } - break; - } - break; - - case GL_LINEAR: - span->intTex[0] -= FIXED_HALF; - span->intTex[1] -= FIXED_HALF; - switch (info->format) { - case GL_RGB: - switch (info->envmode) { - case GL_MODULATE: - SPAN_LINEAR(LINEAR_RGB;MODULATE,3); - break; - case GL_DECAL: - case GL_REPLACE: - SPAN_LINEAR(LINEAR_RGB;REPLACE,3); - break; - case GL_BLEND: - SPAN_LINEAR(LINEAR_RGB;BLEND,3); - break; - case GL_ADD: - SPAN_LINEAR(LINEAR_RGB;ADD,3); - break; - default: - _mesa_problem(ctx, "bad tex env mode (3) in SPAN_LINEAR"); - return; - } - break; - case GL_RGBA: - switch (info->envmode) { - case GL_MODULATE: - SPAN_LINEAR(LINEAR_RGBA;MODULATE,4); - break; - case GL_DECAL: - SPAN_LINEAR(LINEAR_RGBA;DECAL,4); - break; - case GL_BLEND: - SPAN_LINEAR(LINEAR_RGBA;BLEND,4); - break; - case GL_ADD: - SPAN_LINEAR(LINEAR_RGBA;ADD,4); - break; - case GL_REPLACE: - SPAN_LINEAR(LINEAR_RGBA;REPLACE,4); - break; - default: - _mesa_problem(ctx, "bad tex env mode (4) in SPAN_LINEAR"); - return; - } - break; - } - break; - } - span->interpMask &= ~SPAN_RGBA; - ASSERT(span->arrayMask & SPAN_RGBA); - _swrast_write_rgba_span(ctx, span); - -#undef SPAN_NEAREST -#undef SPAN_LINEAR -} - - - -/* - * Render an RGB/RGBA textured triangle without perspective correction. - */ -#define NAME affine_textured_triangle -#define INTERP_Z 1 -#define INTERP_FOG 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define INTERP_INT_TEX 1 -#define S_SCALE twidth -#define T_SCALE theight - -#define SETUP_CODE \ - struct affine_info info; \ - struct gl_texture_unit *unit = ctx->Texture.Unit+0; \ - struct gl_texture_object *obj = unit->Current2D; \ - const GLint b = obj->BaseLevel; \ - const GLfloat twidth = (GLfloat) obj->Image[0][b]->Width; \ - const GLfloat theight = (GLfloat) obj->Image[0][b]->Height; \ - info.texture = (const GLchan *) obj->Image[0][b]->Data; \ - info.twidth_log2 = obj->Image[0][b]->WidthLog2; \ - info.smask = obj->Image[0][b]->Width - 1; \ - info.tmask = obj->Image[0][b]->Height - 1; \ - info.format = obj->Image[0][b]->Format; \ - info.filter = obj->MinFilter; \ - info.envmode = unit->EnvMode; \ - span.arrayMask |= SPAN_RGBA; \ - \ - if (info.envmode == GL_BLEND) { \ - /* potential off-by-one error here? (1.0f -> 2048 -> 0) */ \ - info.er = FloatToFixed(unit->EnvColor[RCOMP] * CHAN_MAXF); \ - info.eg = FloatToFixed(unit->EnvColor[GCOMP] * CHAN_MAXF); \ - info.eb = FloatToFixed(unit->EnvColor[BCOMP] * CHAN_MAXF); \ - info.ea = FloatToFixed(unit->EnvColor[ACOMP] * CHAN_MAXF); \ - } \ - if (!info.texture) { \ - /* this shouldn't happen */ \ - return; \ - } \ - \ - switch (info.format) { \ - case GL_ALPHA: \ - case GL_LUMINANCE: \ - case GL_INTENSITY: \ - info.tbytesline = obj->Image[0][b]->Width; \ - break; \ - case GL_LUMINANCE_ALPHA: \ - info.tbytesline = obj->Image[0][b]->Width * 2; \ - break; \ - case GL_RGB: \ - info.tbytesline = obj->Image[0][b]->Width * 3; \ - break; \ - case GL_RGBA: \ - info.tbytesline = obj->Image[0][b]->Width * 4; \ - break; \ - default: \ - _mesa_problem(NULL, "Bad texture format in affine_texture_triangle");\ - return; \ - } \ - info.tsize = obj->Image[0][b]->Height * info.tbytesline; - -#define RENDER_SPAN( span ) affine_span(ctx, &span, &info); - -#include "s_tritemp.h" - - - -struct persp_info -{ - GLenum filter; - GLenum format; - GLenum envmode; - GLint smask, tmask; - GLint twidth_log2; - const GLchan *texture; - GLfixed er, eg, eb, ea; /* texture env color */ - GLint tbytesline, tsize; -}; - - -static INLINE void -fast_persp_span(GLcontext *ctx, struct sw_span *span, - struct persp_info *info) -{ - GLchan sample[4]; /* the filtered texture sample */ - - /* Instead of defining a function for each mode, a test is done - * between the outer and inner loops. This is to reduce code size - * and complexity. Observe that an optimizing compiler kills - * unused variables (for instance tf,sf,ti,si in case of GL_NEAREST). - */ -#define SPAN_NEAREST(DO_TEX,COMP) \ - for (i = 0; i < span->end; i++) { \ - GLdouble invQ = tex_coord[2] ? \ - (1.0 / tex_coord[2]) : 1.0; \ - GLfloat s_tmp = (GLfloat) (tex_coord[0] * invQ); \ - GLfloat t_tmp = (GLfloat) (tex_coord[1] * invQ); \ - GLint s = IFLOOR(s_tmp) & info->smask; \ - GLint t = IFLOOR(t_tmp) & info->tmask; \ - GLint pos = (t << info->twidth_log2) + s; \ - const GLchan *tex00 = info->texture + COMP * pos; \ - DO_TEX; \ - span->red += span->redStep; \ - span->green += span->greenStep; \ - span->blue += span->blueStep; \ - span->alpha += span->alphaStep; \ - tex_coord[0] += tex_step[0]; \ - tex_coord[1] += tex_step[1]; \ - tex_coord[2] += tex_step[2]; \ - dest += 4; \ - } - -#define SPAN_LINEAR(DO_TEX,COMP) \ - for (i = 0; i < span->end; i++) { \ - GLdouble invQ = tex_coord[2] ? \ - (1.0 / tex_coord[2]) : 1.0; \ - const GLfloat s_tmp = (GLfloat) (tex_coord[0] * invQ); \ - const GLfloat t_tmp = (GLfloat) (tex_coord[1] * invQ); \ - const GLfixed s_fix = FloatToFixed(s_tmp) - FIXED_HALF; \ - const GLfixed t_fix = FloatToFixed(t_tmp) - FIXED_HALF; \ - const GLint s = FixedToInt(FixedFloor(s_fix)) & info->smask; \ - const GLint t = FixedToInt(FixedFloor(t_fix)) & info->tmask; \ - const GLfixed sf = s_fix & FIXED_FRAC_MASK; \ - const GLfixed tf = t_fix & FIXED_FRAC_MASK; \ - const GLint pos = (t << info->twidth_log2) + s; \ - const GLchan *tex00 = info->texture + COMP * pos; \ - const GLchan *tex10 = tex00 + info->tbytesline; \ - const GLchan *tex01 = tex00 + COMP; \ - const GLchan *tex11 = tex10 + COMP; \ - if (t == info->tmask) { \ - tex10 -= info->tsize; \ - tex11 -= info->tsize; \ - } \ - if (s == info->smask) { \ - tex01 -= info->tbytesline; \ - tex11 -= info->tbytesline; \ - } \ - DO_TEX; \ - span->red += span->redStep; \ - span->green += span->greenStep; \ - span->blue += span->blueStep; \ - span->alpha += span->alphaStep; \ - tex_coord[0] += tex_step[0]; \ - tex_coord[1] += tex_step[1]; \ - tex_coord[2] += tex_step[2]; \ - dest += 4; \ - } - - GLuint i; - GLfloat tex_coord[3], tex_step[3]; - GLchan *dest = span->array->rgba[0]; - - const GLuint savedTexEnable = ctx->Texture._EnabledUnits; - ctx->Texture._EnabledUnits = 0; - - tex_coord[0] = span->tex[0][0] * (info->smask + 1); - tex_step[0] = span->texStepX[0][0] * (info->smask + 1); - tex_coord[1] = span->tex[0][1] * (info->tmask + 1); - tex_step[1] = span->texStepX[0][1] * (info->tmask + 1); - /* span->tex[0][2] only if 3D-texturing, here only 2D */ - tex_coord[2] = span->tex[0][3]; - tex_step[2] = span->texStepX[0][3]; - - switch (info->filter) { - case GL_NEAREST: - switch (info->format) { - case GL_RGB: - switch (info->envmode) { - case GL_MODULATE: - SPAN_NEAREST(NEAREST_RGB;MODULATE,3); - break; - case GL_DECAL: - case GL_REPLACE: - SPAN_NEAREST(NEAREST_RGB_REPLACE,3); - break; - case GL_BLEND: - SPAN_NEAREST(NEAREST_RGB;BLEND,3); - break; - case GL_ADD: - SPAN_NEAREST(NEAREST_RGB;ADD,3); - break; - default: - _mesa_problem(ctx, "bad tex env mode (5) in SPAN_LINEAR"); - return; - } - break; - case GL_RGBA: - switch(info->envmode) { - case GL_MODULATE: - SPAN_NEAREST(NEAREST_RGBA;MODULATE,4); - break; - case GL_DECAL: - SPAN_NEAREST(NEAREST_RGBA;DECAL,4); - break; - case GL_BLEND: - SPAN_NEAREST(NEAREST_RGBA;BLEND,4); - break; - case GL_ADD: - SPAN_NEAREST(NEAREST_RGBA;ADD,4); - break; - case GL_REPLACE: - SPAN_NEAREST(NEAREST_RGBA_REPLACE,4); - break; - default: - _mesa_problem(ctx, "bad tex env mode (6) in SPAN_LINEAR"); - return; - } - break; - } - break; - - case GL_LINEAR: - switch (info->format) { - case GL_RGB: - switch (info->envmode) { - case GL_MODULATE: - SPAN_LINEAR(LINEAR_RGB;MODULATE,3); - break; - case GL_DECAL: - case GL_REPLACE: - SPAN_LINEAR(LINEAR_RGB;REPLACE,3); - break; - case GL_BLEND: - SPAN_LINEAR(LINEAR_RGB;BLEND,3); - break; - case GL_ADD: - SPAN_LINEAR(LINEAR_RGB;ADD,3); - break; - default: - _mesa_problem(ctx, "bad tex env mode (7) in SPAN_LINEAR"); - return; - } - break; - case GL_RGBA: - switch (info->envmode) { - case GL_MODULATE: - SPAN_LINEAR(LINEAR_RGBA;MODULATE,4); - break; - case GL_DECAL: - SPAN_LINEAR(LINEAR_RGBA;DECAL,4); - break; - case GL_BLEND: - SPAN_LINEAR(LINEAR_RGBA;BLEND,4); - break; - case GL_ADD: - SPAN_LINEAR(LINEAR_RGBA;ADD,4); - break; - case GL_REPLACE: - SPAN_LINEAR(LINEAR_RGBA;REPLACE,4); - break; - default: - _mesa_problem(ctx, "bad tex env mode (8) in SPAN_LINEAR"); - return; - } - break; - } - break; - } - - ASSERT(span->arrayMask & SPAN_RGBA); - _swrast_write_rgba_span(ctx, span); - -#undef SPAN_NEAREST -#undef SPAN_LINEAR - - /* restore state */ - ctx->Texture._EnabledUnits = savedTexEnable; -} - - -/* - * Render an perspective corrected RGB/RGBA textured triangle. - * The Q (aka V in Mesa) coordinate must be zero such that the divide - * by interpolated Q/W comes out right. - * - */ -#define NAME persp_textured_triangle -#define INTERP_Z 1 -#define INTERP_W 1 -#define INTERP_FOG 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define INTERP_TEX 1 - -#define SETUP_CODE \ - struct persp_info info; \ - const struct gl_texture_unit *unit = ctx->Texture.Unit+0; \ - const struct gl_texture_object *obj = unit->Current2D; \ - const GLint b = obj->BaseLevel; \ - info.texture = (const GLchan *) obj->Image[0][b]->Data; \ - info.twidth_log2 = obj->Image[0][b]->WidthLog2; \ - info.smask = obj->Image[0][b]->Width - 1; \ - info.tmask = obj->Image[0][b]->Height - 1; \ - info.format = obj->Image[0][b]->Format; \ - info.filter = obj->MinFilter; \ - info.envmode = unit->EnvMode; \ - \ - if (info.envmode == GL_BLEND) { \ - /* potential off-by-one error here? (1.0f -> 2048 -> 0) */ \ - info.er = FloatToFixed(unit->EnvColor[RCOMP] * CHAN_MAXF); \ - info.eg = FloatToFixed(unit->EnvColor[GCOMP] * CHAN_MAXF); \ - info.eb = FloatToFixed(unit->EnvColor[BCOMP] * CHAN_MAXF); \ - info.ea = FloatToFixed(unit->EnvColor[ACOMP] * CHAN_MAXF); \ - } \ - if (!info.texture) { \ - /* this shouldn't happen */ \ - return; \ - } \ - \ - switch (info.format) { \ - case GL_ALPHA: \ - case GL_LUMINANCE: \ - case GL_INTENSITY: \ - info.tbytesline = obj->Image[0][b]->Width; \ - break; \ - case GL_LUMINANCE_ALPHA: \ - info.tbytesline = obj->Image[0][b]->Width * 2; \ - break; \ - case GL_RGB: \ - info.tbytesline = obj->Image[0][b]->Width * 3; \ - break; \ - case GL_RGBA: \ - info.tbytesline = obj->Image[0][b]->Width * 4; \ - break; \ - default: \ - _mesa_problem(NULL, "Bad texture format in persp_textured_triangle");\ - return; \ - } \ - info.tsize = obj->Image[0][b]->Height * info.tbytesline; - -#define RENDER_SPAN( span ) \ - span.interpMask &= ~SPAN_RGBA; \ - span.arrayMask |= SPAN_RGBA; \ - fast_persp_span(ctx, &span, &info); - -#include "s_tritemp.h" - - -#endif /* CHAN_BITS != GL_FLOAT */ - - - - -/* - * Render a smooth-shaded, textured, RGBA triangle. - * Interpolate S,T,R with perspective correction, w/out mipmapping. - */ -#define NAME general_textured_triangle -#define INTERP_Z 1 -#define INTERP_W 1 -#define INTERP_FOG 1 -#define INTERP_RGB 1 -#define INTERP_SPEC 1 -#define INTERP_ALPHA 1 -#define INTERP_TEX 1 -#define RENDER_SPAN( span ) _swrast_write_rgba_span(ctx, &span); -#include "s_tritemp.h" - - - -/* - * This is the big one! - * Interpolate Z, RGB, Alpha, specular, fog, and N sets of texture coordinates. - * Yup, it's slow. - */ -#define NAME multitextured_triangle -#define INTERP_Z 1 -#define INTERP_W 1 -#define INTERP_FOG 1 -#define INTERP_RGB 1 -#define INTERP_ALPHA 1 -#define INTERP_SPEC 1 -#define INTERP_MULTITEX 1 -#define RENDER_SPAN( span ) _swrast_write_rgba_span(ctx, &span); -#include "s_tritemp.h" - - - -/* - * Special tri function for occlusion testing - */ -#define NAME occlusion_zless_triangle -#define INTERP_Z 1 -#define SETUP_CODE \ - struct gl_renderbuffer *rb \ - = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; \ - ASSERT(ctx->Depth.Test); \ - ASSERT(!ctx->Depth.Mask); \ - ASSERT(ctx->Depth.Func == GL_LESS); \ - if (ctx->OcclusionResult && !ctx->Occlusion.Active) { \ - return; \ - } -#define RENDER_SPAN( span ) \ - if (ctx->Visual.depthBits <= 16) { \ - GLuint i; \ - const GLushort *zRow = (const GLushort *) \ - rb->GetPointer(ctx, rb, span.x, span.y); \ - for (i = 0; i < span.end; i++) { \ - GLdepth z = FixedToDepth(span.z); \ - if (z < zRow[i]) { \ - ctx->OcclusionResult = GL_TRUE; \ - ctx->Occlusion.PassedCounter++; \ - } \ - span.z += span.zStep; \ - } \ - } \ - else { \ - GLuint i; \ - const GLuint *zRow = (const GLuint *) \ - rb->GetPointer(ctx, rb, span.x, span.y); \ - for (i = 0; i < span.end; i++) { \ - if ((GLuint)span.z < zRow[i]) { \ - ctx->OcclusionResult = GL_TRUE; \ - ctx->Occlusion.PassedCounter++; \ - } \ - span.z += span.zStep; \ - } \ - } -#include "s_tritemp.h" - - - -static void -nodraw_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - (void) (ctx && v0 && v1 && v2); -} - - -/* - * This is used when separate specular color is enabled, but not - * texturing. We add the specular color to the primary color, - * draw the triangle, then restore the original primary color. - * Inefficient, but seldom needed. - */ -void _swrast_add_spec_terms_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - SWvertex *ncv0 = (SWvertex *)v0; /* drop const qualifier */ - SWvertex *ncv1 = (SWvertex *)v1; - SWvertex *ncv2 = (SWvertex *)v2; -#if CHAN_TYPE == GL_FLOAT - GLfloat rSum, gSum, bSum; -#else - GLint rSum, gSum, bSum; -#endif - GLchan c[3][4]; - /* save original colors */ - COPY_CHAN4( c[0], ncv0->color ); - COPY_CHAN4( c[1], ncv1->color ); - COPY_CHAN4( c[2], ncv2->color ); - /* sum v0 */ - rSum = ncv0->color[0] + ncv0->specular[0]; - gSum = ncv0->color[1] + ncv0->specular[1]; - bSum = ncv0->color[2] + ncv0->specular[2]; - ncv0->color[0] = MIN2(rSum, CHAN_MAX); - ncv0->color[1] = MIN2(gSum, CHAN_MAX); - ncv0->color[2] = MIN2(bSum, CHAN_MAX); - /* sum v1 */ - rSum = ncv1->color[0] + ncv1->specular[0]; - gSum = ncv1->color[1] + ncv1->specular[1]; - bSum = ncv1->color[2] + ncv1->specular[2]; - ncv1->color[0] = MIN2(rSum, CHAN_MAX); - ncv1->color[1] = MIN2(gSum, CHAN_MAX); - ncv1->color[2] = MIN2(bSum, CHAN_MAX); - /* sum v2 */ - rSum = ncv2->color[0] + ncv2->specular[0]; - gSum = ncv2->color[1] + ncv2->specular[1]; - bSum = ncv2->color[2] + ncv2->specular[2]; - ncv2->color[0] = MIN2(rSum, CHAN_MAX); - ncv2->color[1] = MIN2(gSum, CHAN_MAX); - ncv2->color[2] = MIN2(bSum, CHAN_MAX); - /* draw */ - SWRAST_CONTEXT(ctx)->SpecTriangle( ctx, ncv0, ncv1, ncv2 ); - /* restore original colors */ - COPY_CHAN4( ncv0->color, c[0] ); - COPY_CHAN4( ncv1->color, c[1] ); - COPY_CHAN4( ncv2->color, c[2] ); -} - - - -#ifdef DEBUG - -/* record the current triangle function name */ -const char *_mesa_triFuncName = NULL; - -#define USE(triFunc) \ -do { \ - _mesa_triFuncName = #triFunc; \ - /*printf("%s\n", _mesa_triFuncName);*/ \ - swrast->Triangle = triFunc; \ -} while (0) - -#else - -#define USE(triFunc) swrast->Triangle = triFunc; - -#endif - - - - -/* - * Determine which triangle rendering function to use given the current - * rendering context. - * - * Please update the summary flag _SWRAST_NEW_TRIANGLE if you add or - * remove tests to this code. - */ -void -_swrast_choose_triangle( GLcontext *ctx ) -{ - SWcontext *swrast = SWRAST_CONTEXT(ctx); - const GLboolean rgbmode = ctx->Visual.rgbMode; - - if (ctx->Polygon.CullFlag && - ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) { - USE(nodraw_triangle); - return; - } - - if (ctx->RenderMode==GL_RENDER) { - - if (ctx->Polygon.SmoothFlag) { - _swrast_set_aa_triangle_function(ctx); - ASSERT(swrast->Triangle); - return; - } - - /* special case for occlusion testing */ - if ((ctx->Depth.OcclusionTest || ctx->Occlusion.Active) && - ctx->Depth.Test && - ctx->Depth.Mask == GL_FALSE && - ctx->Depth.Func == GL_LESS && - !ctx->Stencil.Enabled) { - if ((rgbmode && - ctx->Color.ColorMask[0] == 0 && - ctx->Color.ColorMask[1] == 0 && - ctx->Color.ColorMask[2] == 0 && - ctx->Color.ColorMask[3] == 0) - || - (!rgbmode && ctx->Color.IndexMask == 0)) { - USE(occlusion_zless_triangle); - return; - } - } - - if (ctx->Texture._EnabledCoordUnits || ctx->FragmentProgram._Active) { - /* Ugh, we do a _lot_ of tests to pick the best textured tri func */ - const struct gl_texture_object *texObj2D; - const struct gl_texture_image *texImg; - GLenum minFilter, magFilter, envMode; - GLint format; - texObj2D = ctx->Texture.Unit[0].Current2D; - texImg = texObj2D ? texObj2D->Image[0][texObj2D->BaseLevel] : NULL; - format = texImg ? texImg->TexFormat->MesaFormat : -1; - minFilter = texObj2D ? texObj2D->MinFilter : (GLenum) 0; - magFilter = texObj2D ? texObj2D->MagFilter : (GLenum) 0; - envMode = ctx->Texture.Unit[0].EnvMode; - - /* First see if we can use an optimized 2-D texture function */ - if (ctx->Texture._EnabledCoordUnits == 0x1 - && !ctx->FragmentProgram._Active - && ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT - && texObj2D->WrapS == GL_REPEAT - && texObj2D->WrapT == GL_REPEAT - && texObj2D->_IsPowerOfTwo - && texImg->Border == 0 - && texImg->Width == texImg->RowStride - && (format == MESA_FORMAT_RGB || format == MESA_FORMAT_RGBA) - && minFilter == magFilter - && ctx->Light.Model.ColorControl == GL_SINGLE_COLOR - && ctx->Texture.Unit[0].EnvMode != GL_COMBINE_EXT) { - if (ctx->Hint.PerspectiveCorrection==GL_FASTEST) { - if (minFilter == GL_NEAREST - && format == MESA_FORMAT_RGB - && (envMode == GL_REPLACE || envMode == GL_DECAL) - && ((swrast->_RasterMask == (DEPTH_BIT | TEXTURE_BIT) - && ctx->Depth.Func == GL_LESS - && ctx->Depth.Mask == GL_TRUE) - || swrast->_RasterMask == TEXTURE_BIT) - && ctx->Polygon.StippleFlag == GL_FALSE - && ctx->Visual.depthBits <= 16) { - if (swrast->_RasterMask == (DEPTH_BIT | TEXTURE_BIT)) { - USE(simple_z_textured_triangle); - } - else { - USE(simple_textured_triangle); - } - } - else { -#if (CHAN_BITS == 16 || CHAN_BITS == 32) - USE(general_textured_triangle); -#else - USE(affine_textured_triangle); -#endif - } - } - else { -#if (CHAN_BITS == 16 || CHAN_BITS == 32) - USE(general_textured_triangle); -#else - USE(persp_textured_triangle); -#endif - } - } - else { - /* general case textured triangles */ - if (ctx->Texture._EnabledCoordUnits > 1) { - USE(multitextured_triangle); - } - else { - USE(general_textured_triangle); - } - } - } - else { - ASSERT(!ctx->Texture._EnabledCoordUnits); - if (ctx->Light.ShadeModel==GL_SMOOTH) { - /* smooth shaded, no texturing, stippled or some raster ops */ - if (rgbmode) { - USE(smooth_rgba_triangle); - } - else { - USE(smooth_ci_triangle); - } - } - else { - /* flat shaded, no texturing, stippled or some raster ops */ - if (rgbmode) { - USE(flat_rgba_triangle); - } - else { - USE(flat_ci_triangle); - } - } - } - } - else if (ctx->RenderMode==GL_FEEDBACK) { - USE(_swrast_feedback_triangle); - } - else { - /* GL_SELECT mode */ - USE(_swrast_select_triangle); - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_triangle.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_triangle.h deleted file mode 100644 index 0de812500..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_triangle.h +++ /dev/null @@ -1,51 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 5.1 - * - * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_TRIANGLES_H -#define S_TRIANGLES_H - - -#include "mtypes.h" -#include "swrast.h" - - -extern GLboolean -_swrast_culltriangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2); - -extern void -_swrast_choose_triangle( GLcontext *ctx ); - -extern void -_swrast_add_spec_terms_triangle( GLcontext *ctx, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ); - - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_trispan.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_trispan.h deleted file mode 100644 index 15207e863..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_trispan.h +++ /dev/null @@ -1,31 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#ifndef S_TRISPAN_H -#define S_TRISPAN_H - - -#endif /* S_TRISPAN_H */ diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_tritemp.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_tritemp.h deleted file mode 100644 index a32d8a66b..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_tritemp.h +++ /dev/null @@ -1,1308 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.4.1 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * Triangle Rasterizer Template - * - * This file is #include'd to generate custom triangle rasterizers. - * - * The following macros may be defined to indicate what auxillary information - * must be interplated across the triangle: - * INTERP_Z - if defined, interpolate vertex Z values - * INTERP_W - if defined, interpolate vertex W values - * INTERP_FOG - if defined, interpolate fog values - * INTERP_RGB - if defined, interpolate RGB values - * INTERP_ALPHA - if defined, interpolate Alpha values (req's INTERP_RGB) - * INTERP_SPEC - if defined, interpolate specular RGB values - * INTERP_INDEX - if defined, interpolate color index values - * INTERP_INT_TEX - if defined, interpolate integer ST texcoords - * (fast, simple 2-D texture mapping) - * INTERP_TEX - if defined, interpolate set 0 float STRQ texcoords - * NOTE: OpenGL STRQ = Mesa STUV (R was taken for red) - * INTERP_MULTITEX - if defined, interpolate N units of STRQ texcoords - * - * When one can directly address pixels in the color buffer the following - * macros can be defined and used to compute pixel addresses during - * rasterization (see pRow): - * PIXEL_TYPE - the datatype of a pixel (GLubyte, GLushort, GLuint) - * BYTES_PER_ROW - number of bytes per row in the color buffer - * PIXEL_ADDRESS(X,Y) - returns the address of pixel at (X,Y) where - * Y==0 at bottom of screen and increases upward. - * - * Similarly, for direct depth buffer access, this type is used for depth - * buffer addressing: - * DEPTH_TYPE - either GLushort or GLuint - * - * Optionally, one may provide one-time setup code per triangle: - * SETUP_CODE - code which is to be executed once per triangle - * CLEANUP_CODE - code to execute at end of triangle - * - * The following macro MUST be defined: - * RENDER_SPAN(span) - code to write a span of pixels. - * - * This code was designed for the origin to be in the lower-left corner. - * - * Inspired by triangle rasterizer code written by Allen Akin. Thanks Allen! - * - * - * Some notes on rasterization accuracy: - * - * This code uses fixed point arithmetic (the GLfixed type) to iterate - * over the triangle edges and interpolate ancillary data (such as Z, - * color, secondary color, etc). The number of fractional bits in - * GLfixed and the value of SUB_PIXEL_BITS has a direct bearing on the - * accuracy of rasterization. - * - * If SUB_PIXEL_BITS=4 then we'll snap the vertices to the nearest - * 1/16 of a pixel. If we're walking up a long, nearly vertical edge - * (dx=1/16, dy=1024) we'll need 4 + 10 = 14 fractional bits in - * GLfixed to walk the edge without error. If the maximum viewport - * height is 4K pixels, then we'll need 4 + 12 = 16 fractional bits. - * - * Historically, Mesa has used 11 fractional bits in GLfixed, snaps - * vertices to 1/16 pixel and allowed a maximum viewport height of 2K - * pixels. 11 fractional bits is actually insufficient for accurately - * rasterizing some triangles. More recently, the maximum viewport - * height was increased to 4K pixels. Thus, Mesa should be using 16 - * fractional bits in GLfixed. Unfortunately, there may be some issues - * with setting FIXED_FRAC_BITS=16, such as multiplication overflow. - * This will have to be examined in some detail... - * - * For now, if you find rasterization errors, particularly with tall, - * sliver triangles, try increasing FIXED_FRAC_BITS and/or decreasing - * SUB_PIXEL_BITS. - */ - -/* - * ColorTemp is used for intermediate color values. - */ -#if CHAN_TYPE == GL_FLOAT -#define ColorTemp GLfloat -#else -#define ColorTemp GLint /* same as GLfixed */ -#endif - - -/* - * Walk triangle edges with GLfixed or GLdouble - */ -#if TRIANGLE_WALK_DOUBLE -#define GLinterp GLdouble -#define InterpToInt(X) ((GLint) (X)) -#define INTERP_ONE 1.0 -#else -#define GLinterp GLfixed -#define InterpToInt(X) FixedToInt(X) -#define INTERP_ONE FIXED_ONE -#endif - - -/* - * Either loop over all texture units, or just use unit zero. - */ -#ifdef INTERP_MULTITEX -#define TEX_UNIT_LOOP(CODE) \ - { \ - GLuint u; \ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { \ - if (ctx->Texture._EnabledCoordUnits & (1 << u)) { \ - CODE \ - } \ - } \ - } -#define INTERP_TEX -#elif defined(INTERP_TEX) -#define TEX_UNIT_LOOP(CODE) \ - { \ - const GLuint u = 0; \ - CODE \ - } -#endif - - - -/* - * Some code we unfortunately need to prevent negative interpolated colors. - */ -#ifndef CLAMP_INTERPOLANT -#define CLAMP_INTERPOLANT(CHANNEL, CHANNELSTEP, LEN) \ -do { \ - GLfixed endVal = span.CHANNEL + (LEN) * span.CHANNELSTEP; \ - if (endVal < 0) { \ - span.CHANNEL -= endVal; \ - } \ - if (span.CHANNEL < 0) { \ - span.CHANNEL = 0; \ - } \ -} while (0) -#endif - - -static void NAME(GLcontext *ctx, const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2 ) -{ - typedef struct { - const SWvertex *v0, *v1; /* Y(v0) < Y(v1) */ -#if TRIANGLE_WALK_DOUBLE - GLdouble dx; /* X(v1) - X(v0) */ - GLdouble dy; /* Y(v1) - Y(v0) */ - GLdouble dxdy; /* dx/dy */ - GLdouble adjy; /* adjust from v[0]->fy to fsy, scaled */ - GLdouble fsx; /* first sample point x coord */ - GLdouble fsy; - GLdouble fx0; /*X of lower endpoint */ -#else - GLfloat dx; /* X(v1) - X(v0) */ - GLfloat dy; /* Y(v1) - Y(v0) */ - GLfloat dxdy; /* dx/dy */ - GLfixed fdxdy; /* dx/dy in fixed-point */ - GLfloat adjy; /* adjust from v[0]->fy to fsy, scaled */ - GLfixed fsx; /* first sample point x coord */ - GLfixed fsy; - GLfixed fx0; /* fixed pt X of lower endpoint */ -#endif - GLint lines; /* number of lines to be sampled on this edge */ - } EdgeT; - -#ifdef INTERP_Z - const GLint depthBits = ctx->DrawBuffer->Visual.depthBits; - const GLint fixedToDepthShift = depthBits <= 16 ? FIXED_SHIFT : 0; - const GLfloat maxDepth = ctx->DrawBuffer->_DepthMaxF; -#define FixedToDepth(F) ((F) >> fixedToDepthShift) -#endif - EdgeT eMaj, eTop, eBot; - GLfloat oneOverArea; - const SWvertex *vMin, *vMid, *vMax; /* Y(vMin)<=Y(vMid)<=Y(vMax) */ - GLfloat bf = SWRAST_CONTEXT(ctx)->_BackfaceSign; -#if !TRIANGLE_WALK_DOUBLE - const GLint snapMask = ~((FIXED_ONE / (1 << SUB_PIXEL_BITS)) - 1); /* for x/y coord snapping */ -#endif - GLinterp vMin_fx, vMin_fy, vMid_fx, vMid_fy, vMax_fx, vMax_fy; - - struct sw_span span; - - INIT_SPAN(span, GL_POLYGON, 0, 0, 0); - -#ifdef INTERP_Z - (void) fixedToDepthShift; -#endif - - /* - printf("%s()\n", __FUNCTION__); - printf(" %g, %g, %g\n", v0->win[0], v0->win[1], v0->win[2]); - printf(" %g, %g, %g\n", v1->win[0], v1->win[1], v1->win[2]); - printf(" %g, %g, %g\n", v2->win[0], v2->win[1], v2->win[2]); - */ - /* - ASSERT(v0->win[2] >= 0.0); - ASSERT(v1->win[2] >= 0.0); - ASSERT(v2->win[2] >= 0.0); - */ - /* Compute fixed point x,y coords w/ half-pixel offsets and snapping. - * And find the order of the 3 vertices along the Y axis. - */ - { -#if TRIANGLE_WALK_DOUBLE - const GLdouble fy0 = v0->win[1] - 0.5; - const GLdouble fy1 = v1->win[1] - 0.5; - const GLdouble fy2 = v2->win[1] - 0.5; -#else - const GLfixed fy0 = FloatToFixed(v0->win[1] - 0.5F) & snapMask; - const GLfixed fy1 = FloatToFixed(v1->win[1] - 0.5F) & snapMask; - const GLfixed fy2 = FloatToFixed(v2->win[1] - 0.5F) & snapMask; -#endif - if (fy0 <= fy1) { - if (fy1 <= fy2) { - /* y0 <= y1 <= y2 */ - vMin = v0; vMid = v1; vMax = v2; - vMin_fy = fy0; vMid_fy = fy1; vMax_fy = fy2; - } - else if (fy2 <= fy0) { - /* y2 <= y0 <= y1 */ - vMin = v2; vMid = v0; vMax = v1; - vMin_fy = fy2; vMid_fy = fy0; vMax_fy = fy1; - } - else { - /* y0 <= y2 <= y1 */ - vMin = v0; vMid = v2; vMax = v1; - vMin_fy = fy0; vMid_fy = fy2; vMax_fy = fy1; - bf = -bf; - } - } - else { - if (fy0 <= fy2) { - /* y1 <= y0 <= y2 */ - vMin = v1; vMid = v0; vMax = v2; - vMin_fy = fy1; vMid_fy = fy0; vMax_fy = fy2; - bf = -bf; - } - else if (fy2 <= fy1) { - /* y2 <= y1 <= y0 */ - vMin = v2; vMid = v1; vMax = v0; - vMin_fy = fy2; vMid_fy = fy1; vMax_fy = fy0; - bf = -bf; - } - else { - /* y1 <= y2 <= y0 */ - vMin = v1; vMid = v2; vMax = v0; - vMin_fy = fy1; vMid_fy = fy2; vMax_fy = fy0; - } - } - - /* fixed point X coords */ -#if TRIANGLE_WALK_DOUBLE - vMin_fx = vMin->win[0] + 0.5; - vMid_fx = vMid->win[0] + 0.5; - vMax_fx = vMax->win[0] + 0.5; -#else - vMin_fx = FloatToFixed(vMin->win[0] + 0.5F) & snapMask; - vMid_fx = FloatToFixed(vMid->win[0] + 0.5F) & snapMask; - vMax_fx = FloatToFixed(vMax->win[0] + 0.5F) & snapMask; -#endif - } - - /* vertex/edge relationship */ - eMaj.v0 = vMin; eMaj.v1 = vMax; /*TODO: .v1's not needed */ - eTop.v0 = vMid; eTop.v1 = vMax; - eBot.v0 = vMin; eBot.v1 = vMid; - - /* compute deltas for each edge: vertex[upper] - vertex[lower] */ -#if TRIANGLE_WALK_DOUBLE - eMaj.dx = vMax_fx - vMin_fx; - eMaj.dy = vMax_fy - vMin_fy; - eTop.dx = vMax_fx - vMid_fx; - eTop.dy = vMax_fy - vMid_fy; - eBot.dx = vMid_fx - vMin_fx; - eBot.dy = vMid_fy - vMin_fy; -#else - eMaj.dx = FixedToFloat(vMax_fx - vMin_fx); - eMaj.dy = FixedToFloat(vMax_fy - vMin_fy); - eTop.dx = FixedToFloat(vMax_fx - vMid_fx); - eTop.dy = FixedToFloat(vMax_fy - vMid_fy); - eBot.dx = FixedToFloat(vMid_fx - vMin_fx); - eBot.dy = FixedToFloat(vMid_fy - vMin_fy); -#endif - - /* compute area, oneOverArea and perform backface culling */ - { -#if TRIANGLE_WALK_DOUBLE - const GLdouble area = eMaj.dx * eBot.dy - eBot.dx * eMaj.dy; -#else - const GLfloat area = eMaj.dx * eBot.dy - eBot.dx * eMaj.dy; -#endif - /* Do backface culling */ - if (area * bf < 0.0) - return; - - if (IS_INF_OR_NAN(area) || area == 0.0F) - return; - - oneOverArea = 1.0F / area; - } - - - span.facing = ctx->_Facing; /* for 2-sided stencil test */ - - /* Edge setup. For a triangle strip these could be reused... */ - { -#if TRIANGLE_WALK_DOUBLE - eMaj.fsy = CEILF(vMin_fy); - eMaj.lines = (GLint) CEILF(vMax_fy - eMaj.fsy); -#else - eMaj.fsy = FixedCeil(vMin_fy); - eMaj.lines = FixedToInt(FixedCeil(vMax_fy - eMaj.fsy)); -#endif - if (eMaj.lines > 0) { - eMaj.dxdy = eMaj.dx / eMaj.dy; -#if TRIANGLE_WALK_DOUBLE - eMaj.adjy = (eMaj.fsy - vMin_fy) * FIXED_SCALE; /* SCALED! */ - eMaj.fx0 = vMin_fx; - eMaj.fsx = eMaj.fx0 + (eMaj.adjy * eMaj.dxdy) / (GLdouble) FIXED_SCALE; -#else - eMaj.fdxdy = SignedFloatToFixed(eMaj.dxdy); - eMaj.adjy = (GLfloat) (eMaj.fsy - vMin_fy); /* SCALED! */ - eMaj.fx0 = vMin_fx; - eMaj.fsx = eMaj.fx0 + (GLfixed) (eMaj.adjy * eMaj.dxdy); -#endif - } - else { - return; /*CULLED*/ - } - -#if TRIANGLE_WALK_DOUBLE - eTop.fsy = CEILF(vMid_fy); - eTop.lines = (GLint) CEILF(vMax_fy - eTop.fsy); -#else - eTop.fsy = FixedCeil(vMid_fy); - eTop.lines = FixedToInt(FixedCeil(vMax_fy - eTop.fsy)); -#endif - if (eTop.lines > 0) { - eTop.dxdy = eTop.dx / eTop.dy; -#if TRIANGLE_WALK_DOUBLE - eTop.adjy = (eTop.fsy - vMid_fy) * FIXED_SCALE; /* SCALED! */ - eTop.fx0 = vMid_fx; - eTop.fsx = eTop.fx0 + (eTop.adjy * eTop.dxdy) / (GLdouble) FIXED_SCALE; -#else - eTop.fdxdy = SignedFloatToFixed(eTop.dxdy); - eTop.adjy = (GLfloat) (eTop.fsy - vMid_fy); /* SCALED! */ - eTop.fx0 = vMid_fx; - eTop.fsx = eTop.fx0 + (GLfixed) (eTop.adjy * eTop.dxdy); -#endif - } - -#if TRIANGLE_WALK_DOUBLE - eBot.fsy = CEILF(vMin_fy); - eBot.lines = (GLint) CEILF(vMid_fy - eBot.fsy); -#else - eBot.fsy = FixedCeil(vMin_fy); - eBot.lines = FixedToInt(FixedCeil(vMid_fy - eBot.fsy)); -#endif - if (eBot.lines > 0) { - eBot.dxdy = eBot.dx / eBot.dy; -#if TRIANGLE_WALK_DOUBLE - eBot.adjy = (eBot.fsy - vMin_fy) * FIXED_SCALE; /* SCALED! */ - eBot.fx0 = vMin_fx; - eBot.fsx = eBot.fx0 + (eBot.adjy * eBot.dxdy) / (GLdouble) FIXED_SCALE; -#else - eBot.fdxdy = SignedFloatToFixed(eBot.dxdy); - eBot.adjy = (GLfloat) (eBot.fsy - vMin_fy); /* SCALED! */ - eBot.fx0 = vMin_fx; - eBot.fsx = eBot.fx0 + (GLfixed) (eBot.adjy * eBot.dxdy); -#endif - } - } - - /* - * Conceptually, we view a triangle as two subtriangles - * separated by a perfectly horizontal line. The edge that is - * intersected by this line is one with maximal absolute dy; we - * call it a ``major'' edge. The other two edges are the - * ``top'' edge (for the upper subtriangle) and the ``bottom'' - * edge (for the lower subtriangle). If either of these two - * edges is horizontal or very close to horizontal, the - * corresponding subtriangle might cover zero sample points; - * we take care to handle such cases, for performance as well - * as correctness. - * - * By stepping rasterization parameters along the major edge, - * we can avoid recomputing them at the discontinuity where - * the top and bottom edges meet. However, this forces us to - * be able to scan both left-to-right and right-to-left. - * Also, we must determine whether the major edge is at the - * left or right side of the triangle. We do this by - * computing the magnitude of the cross-product of the major - * and top edges. Since this magnitude depends on the sine of - * the angle between the two edges, its sign tells us whether - * we turn to the left or to the right when travelling along - * the major edge to the top edge, and from this we infer - * whether the major edge is on the left or the right. - * - * Serendipitously, this cross-product magnitude is also a - * value we need to compute the iteration parameter - * derivatives for the triangle, and it can be used to perform - * backface culling because its sign tells us whether the - * triangle is clockwise or counterclockwise. In this code we - * refer to it as ``area'' because it's also proportional to - * the pixel area of the triangle. - */ - - { - GLint scan_from_left_to_right; /* true if scanning left-to-right */ -#ifdef INTERP_INDEX - GLfloat didx, didy; -#endif - - /* - * Execute user-supplied setup code - */ -#ifdef SETUP_CODE - SETUP_CODE -#endif - - scan_from_left_to_right = (oneOverArea < 0.0F); - - - /* compute d?/dx and d?/dy derivatives */ -#ifdef INTERP_Z - span.interpMask |= SPAN_Z; - { - GLfloat eMaj_dz = vMax->win[2] - vMin->win[2]; - GLfloat eBot_dz = vMid->win[2] - vMin->win[2]; - span.dzdx = oneOverArea * (eMaj_dz * eBot.dy - eMaj.dy * eBot_dz); - if (span.dzdx > maxDepth || span.dzdx < -maxDepth) { - /* probably a sliver triangle */ - span.dzdx = 0.0; - span.dzdy = 0.0; - } - else { - span.dzdy = oneOverArea * (eMaj.dx * eBot_dz - eMaj_dz * eBot.dx); - } - if (depthBits <= 16) - span.zStep = SignedFloatToFixed(span.dzdx); - else - span.zStep = (GLint) span.dzdx; - } -#endif -#ifdef INTERP_W - span.interpMask |= SPAN_W; - { - const GLfloat eMaj_dw = vMax->win[3] - vMin->win[3]; - const GLfloat eBot_dw = vMid->win[3] - vMin->win[3]; - span.dwdx = oneOverArea * (eMaj_dw * eBot.dy - eMaj.dy * eBot_dw); - span.dwdy = oneOverArea * (eMaj.dx * eBot_dw - eMaj_dw * eBot.dx); - } -#endif -#ifdef INTERP_FOG - span.interpMask |= SPAN_FOG; - { -# ifdef INTERP_W - const GLfloat wMax = vMax->win[3], wMin = vMin->win[3], wMid = vMid->win[3]; - const GLfloat eMaj_dfog = vMax->fog * wMax - vMin->fog * wMin; - const GLfloat eBot_dfog = vMid->fog * wMid - vMin->fog * wMin; -# else - const GLfloat eMaj_dfog = vMax->fog - vMin->fog; - const GLfloat eBot_dfog = vMid->fog - vMin->fog; -# endif - span.dfogdx = oneOverArea * (eMaj_dfog * eBot.dy - eMaj.dy * eBot_dfog); - span.dfogdy = oneOverArea * (eMaj.dx * eBot_dfog - eMaj_dfog * eBot.dx); - span.fogStep = span.dfogdx; - } -#endif -#ifdef INTERP_RGB - span.interpMask |= SPAN_RGBA; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - GLfloat eMaj_dr = (GLfloat) ((ColorTemp) vMax->color[RCOMP] - (ColorTemp) vMin->color[RCOMP]); - GLfloat eBot_dr = (GLfloat) ((ColorTemp) vMid->color[RCOMP] - (ColorTemp) vMin->color[RCOMP]); - GLfloat eMaj_dg = (GLfloat) ((ColorTemp) vMax->color[GCOMP] - (ColorTemp) vMin->color[GCOMP]); - GLfloat eBot_dg = (GLfloat) ((ColorTemp) vMid->color[GCOMP] - (ColorTemp) vMin->color[GCOMP]); - GLfloat eMaj_db = (GLfloat) ((ColorTemp) vMax->color[BCOMP] - (ColorTemp) vMin->color[BCOMP]); - GLfloat eBot_db = (GLfloat) ((ColorTemp) vMid->color[BCOMP] - (ColorTemp) vMin->color[BCOMP]); -# ifdef INTERP_ALPHA - GLfloat eMaj_da = (GLfloat) ((ColorTemp) vMax->color[ACOMP] - (ColorTemp) vMin->color[ACOMP]); - GLfloat eBot_da = (GLfloat) ((ColorTemp) vMid->color[ACOMP] - (ColorTemp) vMin->color[ACOMP]); -# endif - span.drdx = oneOverArea * (eMaj_dr * eBot.dy - eMaj.dy * eBot_dr); - span.drdy = oneOverArea * (eMaj.dx * eBot_dr - eMaj_dr * eBot.dx); - span.dgdx = oneOverArea * (eMaj_dg * eBot.dy - eMaj.dy * eBot_dg); - span.dgdy = oneOverArea * (eMaj.dx * eBot_dg - eMaj_dg * eBot.dx); - span.dbdx = oneOverArea * (eMaj_db * eBot.dy - eMaj.dy * eBot_db); - span.dbdy = oneOverArea * (eMaj.dx * eBot_db - eMaj_db * eBot.dx); -# if CHAN_TYPE == GL_FLOAT - span.redStep = span.drdx; - span.greenStep = span.dgdx; - span.blueStep = span.dbdx; -# else - span.redStep = SignedFloatToFixed(span.drdx); - span.greenStep = SignedFloatToFixed(span.dgdx); - span.blueStep = SignedFloatToFixed(span.dbdx); -# endif /* GL_FLOAT */ -# ifdef INTERP_ALPHA - span.dadx = oneOverArea * (eMaj_da * eBot.dy - eMaj.dy * eBot_da); - span.dady = oneOverArea * (eMaj.dx * eBot_da - eMaj_da * eBot.dx); -# if CHAN_TYPE == GL_FLOAT - span.alphaStep = span.dadx; -# else - span.alphaStep = SignedFloatToFixed(span.dadx); -# endif /* GL_FLOAT */ -# endif /* INTERP_ALPHA */ - } - else { - ASSERT(ctx->Light.ShadeModel == GL_FLAT); - span.interpMask |= SPAN_FLAT; - span.drdx = span.drdy = 0.0F; - span.dgdx = span.dgdy = 0.0F; - span.dbdx = span.dbdy = 0.0F; -# if CHAN_TYPE == GL_FLOAT - span.redStep = 0.0F; - span.greenStep = 0.0F; - span.blueStep = 0.0F; -# else - span.redStep = 0; - span.greenStep = 0; - span.blueStep = 0; -# endif /* GL_FLOAT */ -# ifdef INTERP_ALPHA - span.dadx = span.dady = 0.0F; -# if CHAN_TYPE == GL_FLOAT - span.alphaStep = 0.0F; -# else - span.alphaStep = 0; -# endif /* GL_FLOAT */ -# endif - } -#endif /* INTERP_RGB */ -#ifdef INTERP_SPEC - span.interpMask |= SPAN_SPEC; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - GLfloat eMaj_dsr = (GLfloat) ((ColorTemp) vMax->specular[RCOMP] - (ColorTemp) vMin->specular[RCOMP]); - GLfloat eBot_dsr = (GLfloat) ((ColorTemp) vMid->specular[RCOMP] - (ColorTemp) vMin->specular[RCOMP]); - GLfloat eMaj_dsg = (GLfloat) ((ColorTemp) vMax->specular[GCOMP] - (ColorTemp) vMin->specular[GCOMP]); - GLfloat eBot_dsg = (GLfloat) ((ColorTemp) vMid->specular[GCOMP] - (ColorTemp) vMin->specular[GCOMP]); - GLfloat eMaj_dsb = (GLfloat) ((ColorTemp) vMax->specular[BCOMP] - (ColorTemp) vMin->specular[BCOMP]); - GLfloat eBot_dsb = (GLfloat) ((ColorTemp) vMid->specular[BCOMP] - (ColorTemp) vMin->specular[BCOMP]); - span.dsrdx = oneOverArea * (eMaj_dsr * eBot.dy - eMaj.dy * eBot_dsr); - span.dsrdy = oneOverArea * (eMaj.dx * eBot_dsr - eMaj_dsr * eBot.dx); - span.dsgdx = oneOverArea * (eMaj_dsg * eBot.dy - eMaj.dy * eBot_dsg); - span.dsgdy = oneOverArea * (eMaj.dx * eBot_dsg - eMaj_dsg * eBot.dx); - span.dsbdx = oneOverArea * (eMaj_dsb * eBot.dy - eMaj.dy * eBot_dsb); - span.dsbdy = oneOverArea * (eMaj.dx * eBot_dsb - eMaj_dsb * eBot.dx); -# if CHAN_TYPE == GL_FLOAT - span.specRedStep = span.dsrdx; - span.specGreenStep = span.dsgdx; - span.specBlueStep = span.dsbdx; -# else - span.specRedStep = SignedFloatToFixed(span.dsrdx); - span.specGreenStep = SignedFloatToFixed(span.dsgdx); - span.specBlueStep = SignedFloatToFixed(span.dsbdx); -# endif - } - else { - span.dsrdx = span.dsrdy = 0.0F; - span.dsgdx = span.dsgdy = 0.0F; - span.dsbdx = span.dsbdy = 0.0F; -# if CHAN_TYPE == GL_FLOAT - span.specRedStep = 0.0F; - span.specGreenStep = 0.0F; - span.specBlueStep = 0.0F; -# else - span.specRedStep = 0; - span.specGreenStep = 0; - span.specBlueStep = 0; -# endif - } -#endif /* INTERP_SPEC */ -#ifdef INTERP_INDEX - span.interpMask |= SPAN_INDEX; - if (ctx->Light.ShadeModel == GL_SMOOTH) { - GLfloat eMaj_di = vMax->index - vMin->index; - GLfloat eBot_di = vMid->index - vMin->index; - didx = oneOverArea * (eMaj_di * eBot.dy - eMaj.dy * eBot_di); - didy = oneOverArea * (eMaj.dx * eBot_di - eMaj_di * eBot.dx); - span.indexStep = SignedFloatToFixed(didx); - } - else { - span.interpMask |= SPAN_FLAT; - didx = didy = 0.0F; - span.indexStep = 0; - } -#endif -#ifdef INTERP_INT_TEX - span.interpMask |= SPAN_INT_TEXTURE; - { - GLfloat eMaj_ds = (vMax->texcoord[0][0] - vMin->texcoord[0][0]) * S_SCALE; - GLfloat eBot_ds = (vMid->texcoord[0][0] - vMin->texcoord[0][0]) * S_SCALE; - GLfloat eMaj_dt = (vMax->texcoord[0][1] - vMin->texcoord[0][1]) * T_SCALE; - GLfloat eBot_dt = (vMid->texcoord[0][1] - vMin->texcoord[0][1]) * T_SCALE; - span.texStepX[0][0] = oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds); - span.texStepY[0][0] = oneOverArea * (eMaj.dx * eBot_ds - eMaj_ds * eBot.dx); - span.texStepX[0][1] = oneOverArea * (eMaj_dt * eBot.dy - eMaj.dy * eBot_dt); - span.texStepY[0][1] = oneOverArea * (eMaj.dx * eBot_dt - eMaj_dt * eBot.dx); - span.intTexStep[0] = SignedFloatToFixed(span.texStepX[0][0]); - span.intTexStep[1] = SignedFloatToFixed(span.texStepX[0][1]); - } -#endif -#ifdef INTERP_TEX - span.interpMask |= SPAN_TEXTURE; - { - /* win[3] is 1/W */ - const GLfloat wMax = vMax->win[3], wMin = vMin->win[3], wMid = vMid->win[3]; - TEX_UNIT_LOOP( - GLfloat eMaj_ds = vMax->texcoord[u][0] * wMax - vMin->texcoord[u][0] * wMin; - GLfloat eBot_ds = vMid->texcoord[u][0] * wMid - vMin->texcoord[u][0] * wMin; - GLfloat eMaj_dt = vMax->texcoord[u][1] * wMax - vMin->texcoord[u][1] * wMin; - GLfloat eBot_dt = vMid->texcoord[u][1] * wMid - vMin->texcoord[u][1] * wMin; - GLfloat eMaj_du = vMax->texcoord[u][2] * wMax - vMin->texcoord[u][2] * wMin; - GLfloat eBot_du = vMid->texcoord[u][2] * wMid - vMin->texcoord[u][2] * wMin; - GLfloat eMaj_dv = vMax->texcoord[u][3] * wMax - vMin->texcoord[u][3] * wMin; - GLfloat eBot_dv = vMid->texcoord[u][3] * wMid - vMin->texcoord[u][3] * wMin; - span.texStepX[u][0] = oneOverArea * (eMaj_ds * eBot.dy - eMaj.dy * eBot_ds); - span.texStepY[u][0] = oneOverArea * (eMaj.dx * eBot_ds - eMaj_ds * eBot.dx); - span.texStepX[u][1] = oneOverArea * (eMaj_dt * eBot.dy - eMaj.dy * eBot_dt); - span.texStepY[u][1] = oneOverArea * (eMaj.dx * eBot_dt - eMaj_dt * eBot.dx); - span.texStepX[u][2] = oneOverArea * (eMaj_du * eBot.dy - eMaj.dy * eBot_du); - span.texStepY[u][2] = oneOverArea * (eMaj.dx * eBot_du - eMaj_du * eBot.dx); - span.texStepX[u][3] = oneOverArea * (eMaj_dv * eBot.dy - eMaj.dy * eBot_dv); - span.texStepY[u][3] = oneOverArea * (eMaj.dx * eBot_dv - eMaj_dv * eBot.dx); - ) - } -#endif - - /* - * We always sample at pixel centers. However, we avoid - * explicit half-pixel offsets in this code by incorporating - * the proper offset in each of x and y during the - * transformation to window coordinates. - * - * We also apply the usual rasterization rules to prevent - * cracks and overlaps. A pixel is considered inside a - * subtriangle if it meets all of four conditions: it is on or - * to the right of the left edge, strictly to the left of the - * right edge, on or below the top edge, and strictly above - * the bottom edge. (Some edges may be degenerate.) - * - * The following discussion assumes left-to-right scanning - * (that is, the major edge is on the left); the right-to-left - * case is a straightforward variation. - * - * We start by finding the half-integral y coordinate that is - * at or below the top of the triangle. This gives us the - * first scan line that could possibly contain pixels that are - * inside the triangle. - * - * Next we creep down the major edge until we reach that y, - * and compute the corresponding x coordinate on the edge. - * Then we find the half-integral x that lies on or just - * inside the edge. This is the first pixel that might lie in - * the interior of the triangle. (We won't know for sure - * until we check the other edges.) - * - * As we rasterize the triangle, we'll step down the major - * edge. For each step in y, we'll move an integer number - * of steps in x. There are two possible x step sizes, which - * we'll call the ``inner'' step (guaranteed to land on the - * edge or inside it) and the ``outer'' step (guaranteed to - * land on the edge or outside it). The inner and outer steps - * differ by one. During rasterization we maintain an error - * term that indicates our distance from the true edge, and - * select either the inner step or the outer step, whichever - * gets us to the first pixel that falls inside the triangle. - * - * All parameters (z, red, etc.) as well as the buffer - * addresses for color and z have inner and outer step values, - * so that we can increment them appropriately. This method - * eliminates the need to adjust parameters by creeping a - * sub-pixel amount into the triangle at each scanline. - */ - - { - GLint subTriangle; - GLinterp fxLeftEdge = 0, fxRightEdge = 0; - GLinterp fdxLeftEdge = 0, fdxRightEdge = 0; - GLinterp fError = 0, fdError = 0; -#ifdef PIXEL_ADDRESS - PIXEL_TYPE *pRow = NULL; - GLint dPRowOuter = 0, dPRowInner; /* offset in bytes */ -#endif -#ifdef INTERP_Z -# ifdef DEPTH_TYPE - struct gl_renderbuffer *zrb - = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; - DEPTH_TYPE *zRow = NULL; - GLint dZRowOuter = 0, dZRowInner; /* offset in bytes */ -# endif - GLfixed zLeft = 0, fdzOuter = 0, fdzInner; -#endif -#ifdef INTERP_W - GLfloat wLeft = 0, dwOuter = 0, dwInner; -#endif -#ifdef INTERP_FOG - GLfloat fogLeft = 0, dfogOuter = 0, dfogInner; -#endif -#ifdef INTERP_RGB - ColorTemp rLeft = 0, fdrOuter = 0, fdrInner; - ColorTemp gLeft = 0, fdgOuter = 0, fdgInner; - ColorTemp bLeft = 0, fdbOuter = 0, fdbInner; -#endif -#ifdef INTERP_ALPHA - ColorTemp aLeft = 0, fdaOuter = 0, fdaInner; -#endif -#ifdef INTERP_SPEC - ColorTemp srLeft=0, dsrOuter=0, dsrInner; - ColorTemp sgLeft=0, dsgOuter=0, dsgInner; - ColorTemp sbLeft=0, dsbOuter=0, dsbInner; -#endif -#ifdef INTERP_INDEX - GLfixed iLeft=0, diOuter=0, diInner; -#endif -#ifdef INTERP_INT_TEX - GLfixed sLeft=0, dsOuter=0, dsInner; - GLfixed tLeft=0, dtOuter=0, dtInner; -#endif -#ifdef INTERP_TEX - GLfloat sLeft[MAX_TEXTURE_COORD_UNITS]; - GLfloat tLeft[MAX_TEXTURE_COORD_UNITS]; - GLfloat uLeft[MAX_TEXTURE_COORD_UNITS]; - GLfloat vLeft[MAX_TEXTURE_COORD_UNITS]; - GLfloat dsOuter[MAX_TEXTURE_COORD_UNITS], dsInner[MAX_TEXTURE_COORD_UNITS]; - GLfloat dtOuter[MAX_TEXTURE_COORD_UNITS], dtInner[MAX_TEXTURE_COORD_UNITS]; - GLfloat duOuter[MAX_TEXTURE_COORD_UNITS], duInner[MAX_TEXTURE_COORD_UNITS]; - GLfloat dvOuter[MAX_TEXTURE_COORD_UNITS], dvInner[MAX_TEXTURE_COORD_UNITS]; -#endif - - for (subTriangle=0; subTriangle<=1; subTriangle++) { - EdgeT *eLeft, *eRight; - int setupLeft, setupRight; - int lines; - - if (subTriangle==0) { - /* bottom half */ - if (scan_from_left_to_right) { - eLeft = &eMaj; - eRight = &eBot; - lines = eRight->lines; - setupLeft = 1; - setupRight = 1; - } - else { - eLeft = &eBot; - eRight = &eMaj; - lines = eLeft->lines; - setupLeft = 1; - setupRight = 1; - } - } - else { - /* top half */ - if (scan_from_left_to_right) { - eLeft = &eMaj; - eRight = &eTop; - lines = eRight->lines; - setupLeft = 0; - setupRight = 1; - } - else { - eLeft = &eTop; - eRight = &eMaj; - lines = eLeft->lines; - setupLeft = 1; - setupRight = 0; - } - if (lines == 0) - return; - } - - if (setupLeft && eLeft->lines > 0) { - const SWvertex *vLower = eLeft->v0; -#if TRIANGLE_WALK_DOUBLE - const GLdouble fsy = eLeft->fsy; - const GLdouble fsx = eLeft->fsx; - const GLdouble fx = CEILF(fsx); - const GLdouble adjx = (fx - eLeft->fx0) * FIXED_SCALE; /* SCALED! */ -#else - const GLfixed fsy = eLeft->fsy; - const GLfixed fsx = eLeft->fsx; /* no fractional part */ - const GLfixed fx = FixedCeil(fsx); /* no fractional part */ - const GLfixed adjx = (GLinterp) (fx - eLeft->fx0); /* SCALED! */ -#endif - const GLinterp adjy = (GLinterp) eLeft->adjy; /* SCALED! */ - GLint idxOuter; -#if TRIANGLE_WALK_DOUBLE - GLdouble dxOuter; - - fError = fx - fsx - 1.0; - fxLeftEdge = fsx; - fdxLeftEdge = eLeft->dxdy; - dxOuter = FLOORF(fdxLeftEdge); - fdError = dxOuter - fdxLeftEdge + 1.0; - idxOuter = (GLint) dxOuter; - span.y = (GLint) fsy; -#else - GLfloat dxOuter; - GLfixed fdxOuter; - - fError = fx - fsx - FIXED_ONE; - fxLeftEdge = fsx - FIXED_EPSILON; - fdxLeftEdge = eLeft->fdxdy; - fdxOuter = FixedFloor(fdxLeftEdge - FIXED_EPSILON); - fdError = fdxOuter - fdxLeftEdge + FIXED_ONE; - idxOuter = FixedToInt(fdxOuter); - dxOuter = (GLfloat) idxOuter; - span.y = FixedToInt(fsy); -#endif - - /* silence warnings on some compilers */ - (void) dxOuter; - (void) adjx; - (void) adjy; - (void) vLower; - -#ifdef PIXEL_ADDRESS - { - pRow = (PIXEL_TYPE *) PIXEL_ADDRESS(InterpToInt(fxLeftEdge), span.y); - dPRowOuter = -((int)BYTES_PER_ROW) + idxOuter * sizeof(PIXEL_TYPE); - /* negative because Y=0 at bottom and increases upward */ - } -#endif - /* - * Now we need the set of parameter (z, color, etc.) values at - * the point (fx, fsy). This gives us properly-sampled parameter - * values that we can step from pixel to pixel. Furthermore, - * although we might have intermediate results that overflow - * the normal parameter range when we step temporarily outside - * the triangle, we shouldn't overflow or underflow for any - * pixel that's actually inside the triangle. - */ - -#ifdef INTERP_Z - { - GLfloat z0 = vLower->win[2]; - if (depthBits <= 16) { - /* interpolate fixed-pt values */ - GLfloat tmp = (z0 * FIXED_SCALE + span.dzdx * adjx + span.dzdy * adjy) + FIXED_HALF; - if (tmp < MAX_GLUINT / 2) - zLeft = (GLfixed) tmp; - else - zLeft = MAX_GLUINT / 2; - fdzOuter = SignedFloatToFixed(span.dzdy + dxOuter * span.dzdx); - } - else { - /* interpolate depth values exactly */ - zLeft = (GLint) (z0 + span.dzdx * FixedToFloat(adjx) + span.dzdy * FixedToFloat(adjy)); - fdzOuter = (GLint) (span.dzdy + dxOuter * span.dzdx); - } -# ifdef DEPTH_TYPE - zRow = (DEPTH_TYPE *) - zrb->GetPointer(ctx, zrb, InterpToInt(fxLeftEdge), span.y); - dZRowOuter = (ctx->DrawBuffer->Width + idxOuter) * sizeof(DEPTH_TYPE); -# endif - } -#endif -#ifdef INTERP_W - wLeft = vLower->win[3] + (span.dwdx * adjx + span.dwdy * adjy) * (1.0F/FIXED_SCALE); - dwOuter = span.dwdy + dxOuter * span.dwdx; -#endif -#ifdef INTERP_FOG -# ifdef INTERP_W - fogLeft = vLower->fog * vLower->win[3] + (span.dfogdx * adjx + span.dfogdy * adjy) * (1.0F/FIXED_SCALE); -# else - fogLeft = vLower->fog + (span.dfogdx * adjx + span.dfogdy * adjy) * (1.0F/FIXED_SCALE); -# endif - dfogOuter = span.dfogdy + dxOuter * span.dfogdx; -#endif -#ifdef INTERP_RGB - if (ctx->Light.ShadeModel == GL_SMOOTH) { -# if CHAN_TYPE == GL_FLOAT - rLeft = vLower->color[RCOMP] + (span.drdx * adjx + span.drdy * adjy) * (1.0F / FIXED_SCALE); - gLeft = vLower->color[GCOMP] + (span.dgdx * adjx + span.dgdy * adjy) * (1.0F / FIXED_SCALE); - bLeft = vLower->color[BCOMP] + (span.dbdx * adjx + span.dbdy * adjy) * (1.0F / FIXED_SCALE); - fdrOuter = span.drdy + dxOuter * span.drdx; - fdgOuter = span.dgdy + dxOuter * span.dgdx; - fdbOuter = span.dbdy + dxOuter * span.dbdx; -# else - rLeft = (GLint)(ChanToFixed(vLower->color[RCOMP]) + span.drdx * adjx + span.drdy * adjy) + FIXED_HALF; - gLeft = (GLint)(ChanToFixed(vLower->color[GCOMP]) + span.dgdx * adjx + span.dgdy * adjy) + FIXED_HALF; - bLeft = (GLint)(ChanToFixed(vLower->color[BCOMP]) + span.dbdx * adjx + span.dbdy * adjy) + FIXED_HALF; - fdrOuter = SignedFloatToFixed(span.drdy + dxOuter * span.drdx); - fdgOuter = SignedFloatToFixed(span.dgdy + dxOuter * span.dgdx); - fdbOuter = SignedFloatToFixed(span.dbdy + dxOuter * span.dbdx); -# endif -# ifdef INTERP_ALPHA -# if CHAN_TYPE == GL_FLOAT - aLeft = vLower->color[ACOMP] + (span.dadx * adjx + span.dady * adjy) * (1.0F / FIXED_SCALE); - fdaOuter = span.dady + dxOuter * span.dadx; -# else - aLeft = (GLint)(ChanToFixed(vLower->color[ACOMP]) + span.dadx * adjx + span.dady * adjy) + FIXED_HALF; - fdaOuter = SignedFloatToFixed(span.dady + dxOuter * span.dadx); -# endif -# endif - } - else { - ASSERT(ctx->Light.ShadeModel == GL_FLAT); -# if CHAN_TYPE == GL_FLOAT - rLeft = v2->color[RCOMP]; - gLeft = v2->color[GCOMP]; - bLeft = v2->color[BCOMP]; - fdrOuter = fdgOuter = fdbOuter = 0.0F; -# else - rLeft = ChanToFixed(v2->color[RCOMP]); - gLeft = ChanToFixed(v2->color[GCOMP]); - bLeft = ChanToFixed(v2->color[BCOMP]); - fdrOuter = fdgOuter = fdbOuter = 0; -# endif -# ifdef INTERP_ALPHA -# if CHAN_TYPE == GL_FLOAT - aLeft = v2->color[ACOMP]; - fdaOuter = 0.0F; -# else - aLeft = ChanToFixed(v2->color[ACOMP]); - fdaOuter = 0; -# endif -# endif - } -#endif /* INTERP_RGB */ - - -#ifdef INTERP_SPEC - if (ctx->Light.ShadeModel == GL_SMOOTH) { -# if CHAN_TYPE == GL_FLOAT - srLeft = vLower->specular[RCOMP] + (span.dsrdx * adjx + span.dsrdy * adjy) * (1.0F / FIXED_SCALE); - sgLeft = vLower->specular[GCOMP] + (span.dsgdx * adjx + span.dsgdy * adjy) * (1.0F / FIXED_SCALE); - sbLeft = vLower->specular[BCOMP] + (span.dsbdx * adjx + span.dsbdy * adjy) * (1.0F / FIXED_SCALE); - dsrOuter = span.dsrdy + dxOuter * span.dsrdx; - dsgOuter = span.dsgdy + dxOuter * span.dsgdx; - dsbOuter = span.dsbdy + dxOuter * span.dsbdx; -# else - srLeft = (GLfixed) (ChanToFixed(vLower->specular[RCOMP]) + span.dsrdx * adjx + span.dsrdy * adjy) + FIXED_HALF; - sgLeft = (GLfixed) (ChanToFixed(vLower->specular[GCOMP]) + span.dsgdx * adjx + span.dsgdy * adjy) + FIXED_HALF; - sbLeft = (GLfixed) (ChanToFixed(vLower->specular[BCOMP]) + span.dsbdx * adjx + span.dsbdy * adjy) + FIXED_HALF; - dsrOuter = SignedFloatToFixed(span.dsrdy + dxOuter * span.dsrdx); - dsgOuter = SignedFloatToFixed(span.dsgdy + dxOuter * span.dsgdx); - dsbOuter = SignedFloatToFixed(span.dsbdy + dxOuter * span.dsbdx); -# endif - } - else { - ASSERT(ctx->Light.ShadeModel == GL_FLAT); -#if CHAN_TYPE == GL_FLOAT - srLeft = v2->specular[RCOMP]; - sgLeft = v2->specular[GCOMP]; - sbLeft = v2->specular[BCOMP]; - dsrOuter = dsgOuter = dsbOuter = 0.0F; -# else - srLeft = ChanToFixed(v2->specular[RCOMP]); - sgLeft = ChanToFixed(v2->specular[GCOMP]); - sbLeft = ChanToFixed(v2->specular[BCOMP]); - dsrOuter = dsgOuter = dsbOuter = 0; -# endif - } -#endif - -#ifdef INTERP_INDEX - if (ctx->Light.ShadeModel == GL_SMOOTH) { - iLeft = (GLfixed)(vLower->index * FIXED_SCALE - + didx * adjx + didy * adjy) + FIXED_HALF; - diOuter = SignedFloatToFixed(didy + dxOuter * didx); - } - else { - ASSERT(ctx->Light.ShadeModel == GL_FLAT); - iLeft = FloatToFixed(v2->index); - diOuter = 0; - } -#endif -#ifdef INTERP_INT_TEX - { - GLfloat s0, t0; - s0 = vLower->texcoord[0][0] * S_SCALE; - sLeft = (GLfixed)(s0 * FIXED_SCALE + span.texStepX[0][0] * adjx - + span.texStepY[0][0] * adjy) + FIXED_HALF; - dsOuter = SignedFloatToFixed(span.texStepY[0][0] + dxOuter * span.texStepX[0][0]); - - t0 = vLower->texcoord[0][1] * T_SCALE; - tLeft = (GLfixed)(t0 * FIXED_SCALE + span.texStepX[0][1] * adjx - + span.texStepY[0][1] * adjy) + FIXED_HALF; - dtOuter = SignedFloatToFixed(span.texStepY[0][1] + dxOuter * span.texStepX[0][1]); - } -#endif -#ifdef INTERP_TEX - TEX_UNIT_LOOP( - const GLfloat invW = vLower->win[3]; - const GLfloat s0 = vLower->texcoord[u][0] * invW; - const GLfloat t0 = vLower->texcoord[u][1] * invW; - const GLfloat u0 = vLower->texcoord[u][2] * invW; - const GLfloat v0 = vLower->texcoord[u][3] * invW; - sLeft[u] = s0 + (span.texStepX[u][0] * adjx + span.texStepY[u][0] * adjy) * (1.0F/FIXED_SCALE); - tLeft[u] = t0 + (span.texStepX[u][1] * adjx + span.texStepY[u][1] * adjy) * (1.0F/FIXED_SCALE); - uLeft[u] = u0 + (span.texStepX[u][2] * adjx + span.texStepY[u][2] * adjy) * (1.0F/FIXED_SCALE); - vLeft[u] = v0 + (span.texStepX[u][3] * adjx + span.texStepY[u][3] * adjy) * (1.0F/FIXED_SCALE); - dsOuter[u] = span.texStepY[u][0] + dxOuter * span.texStepX[u][0]; - dtOuter[u] = span.texStepY[u][1] + dxOuter * span.texStepX[u][1]; - duOuter[u] = span.texStepY[u][2] + dxOuter * span.texStepX[u][2]; - dvOuter[u] = span.texStepY[u][3] + dxOuter * span.texStepX[u][3]; - ) -#endif - } /*if setupLeft*/ - - - if (setupRight && eRight->lines>0) { -#if TRIANGLE_WALK_DOUBLE - fxRightEdge = eRight->fsx; - fdxRightEdge = eRight->dxdy; -#else - fxRightEdge = eRight->fsx - FIXED_EPSILON; - fdxRightEdge = eRight->fdxdy; -#endif - } - - if (lines==0) { - continue; - } - - - /* Rasterize setup */ -#ifdef PIXEL_ADDRESS - dPRowInner = dPRowOuter + sizeof(PIXEL_TYPE); -#endif -#ifdef INTERP_Z -# ifdef DEPTH_TYPE - dZRowInner = dZRowOuter + sizeof(DEPTH_TYPE); -# endif - fdzInner = fdzOuter + span.zStep; -#endif -#ifdef INTERP_W - dwInner = dwOuter + span.dwdx; -#endif -#ifdef INTERP_FOG - dfogInner = dfogOuter + span.dfogdx; -#endif -#ifdef INTERP_RGB - fdrInner = fdrOuter + span.redStep; - fdgInner = fdgOuter + span.greenStep; - fdbInner = fdbOuter + span.blueStep; -#endif -#ifdef INTERP_ALPHA - fdaInner = fdaOuter + span.alphaStep; -#endif -#ifdef INTERP_SPEC - dsrInner = dsrOuter + span.specRedStep; - dsgInner = dsgOuter + span.specGreenStep; - dsbInner = dsbOuter + span.specBlueStep; -#endif -#ifdef INTERP_INDEX - diInner = diOuter + span.indexStep; -#endif -#ifdef INTERP_INT_TEX - dsInner = dsOuter + span.intTexStep[0]; - dtInner = dtOuter + span.intTexStep[1]; -#endif -#ifdef INTERP_TEX - TEX_UNIT_LOOP( - dsInner[u] = dsOuter[u] + span.texStepX[u][0]; - dtInner[u] = dtOuter[u] + span.texStepX[u][1]; - duInner[u] = duOuter[u] + span.texStepX[u][2]; - dvInner[u] = dvOuter[u] + span.texStepX[u][3]; - ) -#endif - - while (lines > 0) { - /* initialize the span interpolants to the leftmost value */ - /* ff = fixed-pt fragment */ - const GLint right = InterpToInt(fxRightEdge); - span.x = InterpToInt(fxLeftEdge); - if (right <= span.x) - span.end = 0; - else - span.end = right - span.x; - -#ifdef INTERP_Z - span.z = zLeft; -#endif -#ifdef INTERP_W - span.w = wLeft; -#endif -#ifdef INTERP_FOG - span.fog = fogLeft; -#endif -#ifdef INTERP_RGB - span.red = rLeft; - span.green = gLeft; - span.blue = bLeft; -#endif -#ifdef INTERP_ALPHA - span.alpha = aLeft; -#endif -#ifdef INTERP_SPEC - span.specRed = srLeft; - span.specGreen = sgLeft; - span.specBlue = sbLeft; -#endif -#ifdef INTERP_INDEX - span.index = iLeft; -#endif -#ifdef INTERP_INT_TEX - span.intTex[0] = sLeft; - span.intTex[1] = tLeft; -#endif - -#ifdef INTERP_TEX - TEX_UNIT_LOOP( - span.tex[u][0] = sLeft[u]; - span.tex[u][1] = tLeft[u]; - span.tex[u][2] = uLeft[u]; - span.tex[u][3] = vLeft[u]; - ) -#endif - - /* This is where we actually generate fragments */ - /* XXX the test for span.y > 0 _shouldn't_ be needed but - * it fixes a problem on 64-bit Opterons (bug 4842). - */ - if (span.end > 0 && span.y >= 0) { - const GLint len = span.end - 1; - (void) len; -#ifdef INTERP_RGB - CLAMP_INTERPOLANT(red, redStep, len); - CLAMP_INTERPOLANT(green, greenStep, len); - CLAMP_INTERPOLANT(blue, blueStep, len); -#endif -#ifdef INTERP_ALPHA - CLAMP_INTERPOLANT(alpha, alphaStep, len); -#endif -#ifdef INTERP_SPEC - CLAMP_INTERPOLANT(specRed, specRedStep, len); - CLAMP_INTERPOLANT(specGreen, specGreenStep, len); - CLAMP_INTERPOLANT(specBlue, specBlueStep, len); -#endif -#ifdef INTERP_INDEX - CLAMP_INTERPOLANT(index, indexStep, len); -#endif - { RENDER_SPAN( span ); } - } - - /* - * Advance to the next scan line. Compute the - * new edge coordinates, and adjust the - * pixel-center x coordinate so that it stays - * on or inside the major edge. - */ - span.y++; - lines--; - - fxLeftEdge += fdxLeftEdge; - fxRightEdge += fdxRightEdge; - - fError += fdError; - if (fError >= 0) { - fError -= INTERP_ONE; - -#ifdef PIXEL_ADDRESS - pRow = (PIXEL_TYPE *) ((GLubyte *) pRow + dPRowOuter); -#endif -#ifdef INTERP_Z -# ifdef DEPTH_TYPE - zRow = (DEPTH_TYPE *) ((GLubyte *) zRow + dZRowOuter); -# endif - zLeft += fdzOuter; -#endif -#ifdef INTERP_W - wLeft += dwOuter; -#endif -#ifdef INTERP_FOG - fogLeft += dfogOuter; -#endif -#ifdef INTERP_RGB - rLeft += fdrOuter; - gLeft += fdgOuter; - bLeft += fdbOuter; -#endif -#ifdef INTERP_ALPHA - aLeft += fdaOuter; -#endif -#ifdef INTERP_SPEC - srLeft += dsrOuter; - sgLeft += dsgOuter; - sbLeft += dsbOuter; -#endif -#ifdef INTERP_INDEX - iLeft += diOuter; -#endif -#ifdef INTERP_INT_TEX - sLeft += dsOuter; - tLeft += dtOuter; -#endif -#ifdef INTERP_TEX - TEX_UNIT_LOOP( - sLeft[u] += dsOuter[u]; - tLeft[u] += dtOuter[u]; - uLeft[u] += duOuter[u]; - vLeft[u] += dvOuter[u]; - ) -#endif - } - else { -#ifdef PIXEL_ADDRESS - pRow = (PIXEL_TYPE *) ((GLubyte *) pRow + dPRowInner); -#endif -#ifdef INTERP_Z -# ifdef DEPTH_TYPE - zRow = (DEPTH_TYPE *) ((GLubyte *) zRow + dZRowInner); -# endif - zLeft += fdzInner; -#endif -#ifdef INTERP_W - wLeft += dwInner; -#endif -#ifdef INTERP_FOG - fogLeft += dfogInner; -#endif -#ifdef INTERP_RGB - rLeft += fdrInner; - gLeft += fdgInner; - bLeft += fdbInner; -#endif -#ifdef INTERP_ALPHA - aLeft += fdaInner; -#endif -#ifdef INTERP_SPEC - srLeft += dsrInner; - sgLeft += dsgInner; - sbLeft += dsbInner; -#endif -#ifdef INTERP_INDEX - iLeft += diInner; -#endif -#ifdef INTERP_INT_TEX - sLeft += dsInner; - tLeft += dtInner; -#endif -#ifdef INTERP_TEX - TEX_UNIT_LOOP( - sLeft[u] += dsInner[u]; - tLeft[u] += dtInner[u]; - uLeft[u] += duInner[u]; - vLeft[u] += dvInner[u]; - ) -#endif - } - } /*while lines>0*/ - - } /* for subTriangle */ - - } -#ifdef CLEANUP_CODE - CLEANUP_CODE -#endif - } -} - -#undef SETUP_CODE -#undef CLEANUP_CODE -#undef RENDER_SPAN - -#undef PIXEL_TYPE -#undef BYTES_PER_ROW -#undef PIXEL_ADDRESS -#undef DEPTH_TYPE - -#undef INTERP_Z -#undef INTERP_W -#undef INTERP_FOG -#undef INTERP_RGB -#undef INTERP_ALPHA -#undef INTERP_SPEC -#undef INTERP_INDEX -#undef INTERP_INT_TEX -#undef INTERP_TEX -#undef INTERP_MULTITEX -#undef TEX_UNIT_LOOP - -#undef S_SCALE -#undef T_SCALE - -#undef FixedToDepth -#undef ColorTemp -#undef GLinterp -#undef InterpToInt -#undef INTERP_ONE - -#undef NAME diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_zoom.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_zoom.c deleted file mode 100644 index b67a29701..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_zoom.c +++ /dev/null @@ -1,428 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 5.1 - * - * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "glheader.h" -#include "macros.h" -#include "imports.h" -#include "colormac.h" - -#include "s_context.h" -#include "s_span.h" -#include "s_stencil.h" -#include "s_zoom.h" - - -/* - * Helper function called from _swrast_write_zoomed_rgba/rgb/index_span(). - */ -static void -zoom_span( GLcontext *ctx, const struct sw_span *span, - const GLvoid *src, GLint y0, GLenum format, GLint skipPixels ) -{ - GLint r0, r1, row; - GLint c0, c1, skipCol; - GLint i, j; - const GLuint maxWidth = MIN2( ctx->DrawBuffer->Width, MAX_WIDTH ); - struct sw_span zoomed; - struct span_arrays zoomed_arrays; /* this is big! */ - - /* no pixel arrays! must be horizontal spans. */ - ASSERT((span->arrayMask & SPAN_XY) == 0); - ASSERT(span->primitive == GL_BITMAP); - - INIT_SPAN(zoomed, GL_BITMAP, 0, 0, 0); - zoomed.array = &zoomed_arrays; - - /* copy fog interp info */ - zoomed.fog = span->fog; - zoomed.fogStep = span->fogStep; - /* XXX copy texcoord info? */ - - if (format == GL_RGBA || format == GL_RGB) { - /* copy Z info */ - zoomed.z = span->z; - zoomed.zStep = span->zStep; - /* we'll generate an array of colorss */ - zoomed.interpMask = span->interpMask & ~SPAN_RGBA; - zoomed.arrayMask |= SPAN_RGBA; - } - else if (format == GL_COLOR_INDEX) { - /* copy Z info */ - zoomed.z = span->z; - zoomed.zStep = span->zStep; - /* we'll generate an array of color indexes */ - zoomed.interpMask = span->interpMask & ~SPAN_INDEX; - zoomed.arrayMask |= SPAN_INDEX; - } - else { - assert(format == GL_DEPTH_COMPONENT); - /* Copy color info */ - zoomed.red = span->red; - zoomed.green = span->green; - zoomed.blue = span->blue; - zoomed.alpha = span->alpha; - zoomed.redStep = span->redStep; - zoomed.greenStep = span->greenStep; - zoomed.blueStep = span->blueStep; - zoomed.alphaStep = span->alphaStep; - /* we'll generate an array of depth values */ - zoomed.interpMask = span->interpMask & ~SPAN_Z; - zoomed.arrayMask |= SPAN_Z; - } - - /* - * Compute which columns to draw: [c0, c1) - */ - c0 = (GLint) (span->x + skipPixels * ctx->Pixel.ZoomX); - c1 = (GLint) (span->x + (skipPixels + span->end) * ctx->Pixel.ZoomX); - if (c0 == c1) { - return; - } - else if (c1 < c0) { - /* swap */ - GLint ctmp = c1; - c1 = c0; - c0 = ctmp; - } - if (c0 < 0) { - zoomed.x = 0; - zoomed.start = 0; - zoomed.end = c1; - skipCol = -c0; - } - else { - zoomed.x = c0; - zoomed.start = 0; - zoomed.end = c1 - c0; - skipCol = 0; - } - if (zoomed.end > maxWidth) - zoomed.end = maxWidth; - - /* - * Compute which rows to draw: [r0, r1) - */ - row = span->y - y0; - r0 = y0 + (GLint) (row * ctx->Pixel.ZoomY); - r1 = y0 + (GLint) ((row+1) * ctx->Pixel.ZoomY); - if (r0 == r1) { - return; - } - else if (r1 < r0) { - /* swap */ - GLint rtmp = r1; - r1 = r0; - r0 = rtmp; - } - - ASSERT(r0 < r1); - ASSERT(c0 < c1); - - /* - * Trivial clip rejection testing. - */ - if (r1 < 0) /* below window */ - return; - if (r0 >= (GLint) ctx->DrawBuffer->Height) /* above window */ - return; - if (c1 < 0) /* left of window */ - return; - if (c0 >= (GLint) ctx->DrawBuffer->Width) /* right of window */ - return; - - /* zoom the span horizontally */ - if (format == GL_RGBA) { - const GLchan (*rgba)[4] = (const GLchan (*)[4]) src; - if (ctx->Pixel.ZoomX == -1.0F) { - /* common case */ - for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { - i = span->end - (j + skipCol) - 1; - COPY_CHAN4(zoomed.array->rgba[j], rgba[i]); - } - } - else { - /* general solution */ - const GLfloat xscale = 1.0F / ctx->Pixel.ZoomX; - for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { - i = (GLint) ((j + skipCol) * xscale); - if (ctx->Pixel.ZoomX < 0.0) { - ASSERT(i <= 0); - i = span->end + i - 1; - } - ASSERT(i >= 0); - ASSERT(i < (GLint) span->end); - COPY_CHAN4(zoomed.array->rgba[j], rgba[i]); - } - } - } - else if (format == GL_RGB) { - const GLchan (*rgb)[3] = (const GLchan (*)[3]) src; - if (ctx->Pixel.ZoomX == -1.0F) { - /* common case */ - for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { - i = span->end - (j + skipCol) - 1; - zoomed.array->rgba[j][0] = rgb[i][0]; - zoomed.array->rgba[j][1] = rgb[i][1]; - zoomed.array->rgba[j][2] = rgb[i][2]; - zoomed.array->rgba[j][3] = CHAN_MAX; - } - } - else { - /* general solution */ - const GLfloat xscale = 1.0F / ctx->Pixel.ZoomX; - for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { - i = (GLint) ((j + skipCol) * xscale); - if (ctx->Pixel.ZoomX < 0.0) { - ASSERT(i <= 0); - i = span->end + i - 1; - } - ASSERT(i >= 0); - ASSERT(i < (GLint) span->end); - zoomed.array->rgba[j][0] = rgb[i][0]; - zoomed.array->rgba[j][1] = rgb[i][1]; - zoomed.array->rgba[j][2] = rgb[i][2]; - zoomed.array->rgba[j][3] = CHAN_MAX; - } - } - } - else if (format == GL_COLOR_INDEX) { - const GLuint *indexes = (const GLuint *) src; - if (ctx->Pixel.ZoomX == -1.0F) { - /* common case */ - for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { - i = span->end - (j + skipCol) - 1; - zoomed.array->index[j] = indexes[i]; - } - } - else { - /* general solution */ - const GLfloat xscale = 1.0F / ctx->Pixel.ZoomX; - for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { - i = (GLint) ((j + skipCol) * xscale); - if (ctx->Pixel.ZoomX < 0.0) { - ASSERT(i <= 0); - i = span->end + i - 1; - } - ASSERT(i >= 0); - ASSERT(i < (GLint) span->end); - zoomed.array->index[j] = indexes[i]; - } - } - } - else { - const GLdepth *zValues = (const GLuint *) src; - assert(format == GL_DEPTH_COMPONENT); - if (ctx->Pixel.ZoomX == -1.0F) { - /* common case */ - for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { - i = span->end - (j + skipCol) - 1; - zoomed.array->z[j] = zValues[i]; - } - } - else { - /* general solution */ - const GLfloat xscale = 1.0F / ctx->Pixel.ZoomX; - for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { - i = (GLint) ((j + skipCol) * xscale); - if (ctx->Pixel.ZoomX < 0.0) { - ASSERT(i <= 0); - i = span->end + i - 1; - } - ASSERT(i >= 0); - ASSERT(i < (GLint) span->end); - zoomed.array->z[j] = zValues[i]; - } - } - /* Now, fall into either the RGB or COLOR_INDEX path below */ - if (ctx->Visual.rgbMode) - format = GL_RGBA; - else - format = GL_COLOR_INDEX; - } - - - /* write the span in rows [r0, r1) */ - if (format == GL_RGBA || format == GL_RGB) { - /* Writing the span may modify the colors, so make a backup now if we're - * going to call _swrast_write_zoomed_span() more than once. - * Also, clipping may change the span end value, so store it as well. - */ - GLchan rgbaSave[MAX_WIDTH][4]; - const GLint end = zoomed.end; /* save */ - if (r1 - r0 > 1) { - MEMCPY(rgbaSave, zoomed.array->rgba, zoomed.end * 4 * sizeof(GLchan)); - } - for (zoomed.y = r0; zoomed.y < r1; zoomed.y++) { - _swrast_write_rgba_span(ctx, &zoomed); - zoomed.end = end; /* restore */ - if (r1 - r0 > 1) { - /* restore the colors */ - MEMCPY(zoomed.array->rgba, rgbaSave, zoomed.end*4 * sizeof(GLchan)); - } - } - } - else if (format == GL_COLOR_INDEX) { - GLuint indexSave[MAX_WIDTH]; - const GLint end = zoomed.end; /* save */ - if (r1 - r0 > 1) { - MEMCPY(indexSave, zoomed.array->index, zoomed.end * sizeof(GLuint)); - } - for (zoomed.y = r0; zoomed.y < r1; zoomed.y++) { - _swrast_write_index_span(ctx, &zoomed); - zoomed.end = end; /* restore */ - if (r1 - r0 > 1) { - /* restore the colors */ - MEMCPY(zoomed.array->index, indexSave, zoomed.end * sizeof(GLuint)); - } - } - } -} - - -void -_swrast_write_zoomed_rgba_span( GLcontext *ctx, const struct sw_span *span, - CONST GLchan rgba[][4], GLint y0, - GLint skipPixels ) -{ - zoom_span(ctx, span, (const GLvoid *) rgba, y0, GL_RGBA, skipPixels); -} - - -void -_swrast_write_zoomed_rgb_span( GLcontext *ctx, const struct sw_span *span, - CONST GLchan rgb[][3], GLint y0, - GLint skipPixels ) -{ - zoom_span(ctx, span, (const GLvoid *) rgb, y0, GL_RGB, skipPixels); -} - - -void -_swrast_write_zoomed_index_span( GLcontext *ctx, const struct sw_span *span, - GLint y0, GLint skipPixels ) -{ - zoom_span(ctx, span, (const GLvoid *) span->array->index, y0, - GL_COLOR_INDEX, skipPixels); -} - - -void -_swrast_write_zoomed_depth_span( GLcontext *ctx, const struct sw_span *span, - GLint y0, GLint skipPixels ) -{ - zoom_span(ctx, span, (const GLvoid *) span->array->z, y0, - GL_DEPTH_COMPONENT, skipPixels); -} - - -/* - * As above, but write stencil values. - */ -void -_swrast_write_zoomed_stencil_span( GLcontext *ctx, - GLuint n, GLint x, GLint y, - const GLstencil stencil[], GLint y0, - GLint skipPixels ) -{ - GLint m; - GLint r0, r1, row, r; - GLint i, j, skipcol; - GLstencil zstencil[MAX_WIDTH]; /* zoomed stencil values */ - GLint maxwidth = MIN2( ctx->DrawBuffer->Width, MAX_WIDTH ); - - (void) skipPixels; /* XXX this shouldn't be ignored */ - - /* compute width of output row */ - m = (GLint) FABSF( n * ctx->Pixel.ZoomX ); - if (m==0) { - return; - } - if (ctx->Pixel.ZoomX<0.0) { - /* adjust x coordinate for left/right mirroring */ - x = x - m; - } - - /* compute which rows to draw */ - row = y - y0; - r0 = y0 + (GLint) (row * ctx->Pixel.ZoomY); - r1 = y0 + (GLint) ((row+1) * ctx->Pixel.ZoomY); - if (r0==r1) { - return; - } - else if (r1<r0) { - GLint rtmp = r1; - r1 = r0; - r0 = rtmp; - } - - /* return early if r0...r1 is above or below window */ - if (r0<0 && r1<0) { - /* below window */ - return; - } - if (r0 >= (GLint) ctx->DrawBuffer->Height && - r1 >= (GLint) ctx->DrawBuffer->Height) { - /* above window */ - return; - } - - /* check if left edge is outside window */ - skipcol = 0; - if (x<0) { - skipcol = -x; - m += x; - } - /* make sure span isn't too long or short */ - if (m>maxwidth) { - m = maxwidth; - } - else if (m<=0) { - return; - } - - ASSERT( m <= MAX_WIDTH ); - - /* zoom the span horizontally */ - if (ctx->Pixel.ZoomX==-1.0F) { - /* n==m */ - for (j=0;j<m;j++) { - i = n - (j+skipcol) - 1; - zstencil[j] = stencil[i]; - } - } - else { - GLfloat xscale = 1.0F / ctx->Pixel.ZoomX; - for (j=0;j<m;j++) { - i = (GLint) ((j+skipcol) * xscale); - if (i<0) i = n + i - 1; - zstencil[j] = stencil[i]; - } - } - - /* write the span */ - for (r=r0; r<r1; r++) { - _swrast_write_stencil_span( ctx, m, x+skipcol, r, zstencil ); - } -} diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_zoom.h b/nx-X11/extras/Mesa/src/mesa/swrast/s_zoom.h deleted file mode 100644 index aa9a891eb..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/s_zoom.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 5.1 - * - * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#ifndef S_ZOOM_H -#define S_ZOOM_H - -#include "mtypes.h" -#include "swrast.h" - -extern void -_swrast_write_zoomed_rgba_span( GLcontext *ctx, const struct sw_span *span, - CONST GLchan rgb[][4], GLint y0, - GLint skipPixels ); - -extern void -_swrast_write_zoomed_rgb_span( GLcontext *ctx, const struct sw_span *span, - CONST GLchan rgb[][3], GLint y0, - GLint skipPixels ); - -extern void -_swrast_write_zoomed_index_span( GLcontext *ctx, const struct sw_span *span, - GLint y0, GLint skipPixels ); - -extern void -_swrast_write_zoomed_depth_span( GLcontext *ctx, const struct sw_span *span, - GLint y0, GLint skipPixels ); - -extern void -_swrast_write_zoomed_stencil_span( GLcontext *ctx, GLuint n, GLint x, GLint y, - const GLstencil stencil[], GLint y0, - GLint skipPixels ); - -#endif diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/swrast.h b/nx-X11/extras/Mesa/src/mesa/swrast/swrast.h deleted file mode 100644 index 90123e513..000000000 --- a/nx-X11/extras/Mesa/src/mesa/swrast/swrast.h +++ /dev/null @@ -1,299 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - */ - -/** - * \file swrast/swrast.h - * \brief Public interface to the software rasterization functions. - * \author Keith Whitwell <keith@tungstengraphics.com> - */ - -#ifndef SWRAST_H -#define SWRAST_H - -#include "mtypes.h" - -/** - * \struct SWvertex - * \brief Data-structure to handle vertices in the software rasterizer. - * - * The software rasterizer now uses this format for vertices. Thus a - * 'RasterSetup' stage or other translation is required between the - * tnl module and the swrast rasterization functions. This serves to - * isolate the swrast module from the internals of the tnl module, and - * improve its usefulness as a fallback mechanism for hardware - * drivers. - * - * Full software drivers: - * - Register the rastersetup and triangle functions from - * utils/software_helper. - * - On statechange, update the rasterization pointers in that module. - * - * Rasterization hardware drivers: - * - Keep native rastersetup. - * - Implement native twoside,offset and unfilled triangle setup. - * - Implement a translator from native vertices to swrast vertices. - * - On partial fallback (mix of accelerated and unaccelerated - * prims), call a pass-through function which translates native - * vertices to SWvertices and calls the appropriate swrast function. - * - On total fallback (vertex format insufficient for state or all - * primitives unaccelerated), hook in swrast_setup instead. - */ -typedef struct { - /** win[0], win[1] are the screen-coords of SWvertex. - * win[2] is the z-buffer coord (if 16-bit Z buffer, in range [0,65535]). - * win[3] is 1/w where w is the clip-space W coord. This is the value - * that clip{XYZ} were multiplied by to get ndc{XYZ}. - */ - GLfloat win[4]; - GLfloat texcoord[MAX_TEXTURE_COORD_UNITS][4]; - GLchan color[4]; - GLchan specular[4]; - GLfloat fog; - GLfloat index; - GLfloat pointSize; -} SWvertex; - - -struct swrast_device_driver; - - -/* These are the public-access functions exported from swrast. - */ -extern void -_swrast_use_read_buffer( GLcontext *ctx ); - -extern void -_swrast_use_draw_buffer( GLcontext *ctx ); - -extern GLboolean -_swrast_CreateContext( GLcontext *ctx ); - -extern void -_swrast_DestroyContext( GLcontext *ctx ); - -/* Get a (non-const) reference to the device driver struct for swrast. - */ -extern struct swrast_device_driver * -_swrast_GetDeviceDriverReference( GLcontext *ctx ); - -extern void -_swrast_Bitmap( GLcontext *ctx, - GLint px, GLint py, - GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap ); - -extern void -_swrast_CopyPixels( GLcontext *ctx, - GLint srcx, GLint srcy, - GLint destx, GLint desty, - GLsizei width, GLsizei height, - GLenum type ); - -extern void -_swrast_DrawPixels( GLcontext *ctx, - GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels ); - -extern void -_swrast_ReadPixels( GLcontext *ctx, - GLint x, GLint y, GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - GLvoid *pixels ); - -extern void -_swrast_Clear( GLcontext *ctx, GLbitfield mask, GLboolean all, - GLint x, GLint y, GLint width, GLint height ); - -extern void -_swrast_Accum( GLcontext *ctx, GLenum op, - GLfloat value, GLint xpos, GLint ypos, - GLint width, GLint height ); - - -extern void -_swrast_DrawBuffer( GLcontext *ctx, GLenum mode ); - - -extern void -_swrast_DrawBuffers( GLcontext *ctx, GLsizei n, const GLenum *buffers ); - - -/* Reset the stipple counter - */ -extern void -_swrast_ResetLineStipple( GLcontext *ctx ); - -/* These will always render the correct point/line/triangle for the - * current state. - * - * For flatshaded primitives, the provoking vertex is the final one. - */ -extern void -_swrast_Point( GLcontext *ctx, const SWvertex *v ); - -extern void -_swrast_Line( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1 ); - -extern void -_swrast_Triangle( GLcontext *ctx, const SWvertex *v0, - const SWvertex *v1, const SWvertex *v2 ); - -extern void -_swrast_Quad( GLcontext *ctx, - const SWvertex *v0, const SWvertex *v1, - const SWvertex *v2, const SWvertex *v3); - -extern void -_swrast_flush( GLcontext *ctx ); - -extern void -_swrast_render_primitive( GLcontext *ctx, GLenum mode ); - -extern void -_swrast_render_start( GLcontext *ctx ); - -extern void -_swrast_render_finish( GLcontext *ctx ); - -/* Tell the software rasterizer about core state changes. - */ -extern void -_swrast_InvalidateState( GLcontext *ctx, GLuint new_state ); - -/* Configure software rasterizer to match hardware rasterizer characteristics: - */ -extern void -_swrast_allow_vertex_fog( GLcontext *ctx, GLboolean value ); - -extern void -_swrast_allow_pixel_fog( GLcontext *ctx, GLboolean value ); - -/* Debug: - */ -extern void -_swrast_print_vertex( GLcontext *ctx, const SWvertex *v ); - - -/* - * Imaging fallbacks (a better solution should be found, perhaps - * moving all the imaging fallback code to a new module) - */ -extern void -_swrast_CopyConvolutionFilter2D(GLcontext *ctx, GLenum target, - GLenum internalFormat, - GLint x, GLint y, GLsizei width, - GLsizei height); -extern void -_swrast_CopyConvolutionFilter1D(GLcontext *ctx, GLenum target, - GLenum internalFormat, - GLint x, GLint y, GLsizei width); -extern void -_swrast_CopyColorSubTable( GLcontext *ctx,GLenum target, GLsizei start, - GLint x, GLint y, GLsizei width); -extern void -_swrast_CopyColorTable( GLcontext *ctx, - GLenum target, GLenum internalformat, - GLint x, GLint y, GLsizei width); - - -/* - * Texture fallbacks. Could also live in a new module - * with the rest of the texture store fallbacks? - */ -extern void -_swrast_copy_teximage1d(GLcontext *ctx, GLenum target, GLint level, - GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLint border); - -extern void -_swrast_copy_teximage2d(GLcontext *ctx, GLenum target, GLint level, - GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLsizei height, - GLint border); - - -extern void -_swrast_copy_texsubimage1d(GLcontext *ctx, GLenum target, GLint level, - GLint xoffset, GLint x, GLint y, GLsizei width); - -extern void -_swrast_copy_texsubimage2d(GLcontext *ctx, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLint x, GLint y, GLsizei width, GLsizei height); - -extern void -_swrast_copy_texsubimage3d(GLcontext *ctx, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint x, GLint y, GLsizei width, GLsizei height); - - -/* The driver interface for the software rasterizer. - * Unless otherwise noted, all functions are mandatory. - */ -struct swrast_device_driver { -#if OLD_RENDERBUFFER - void (*SetBuffer)(GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit); - /* - * Specifies the current color buffer for span/pixel writing/reading. - * buffer indicates which window to write to / read from. Normally, - * this'll be the buffer currently bound to the context, but it doesn't - * have to be! - * bufferBit indicates which color buffer, exactly one of: - * DD_FRONT_LEFT_BIT - this buffer always exists - * DD_BACK_LEFT_BIT - when double buffering - * DD_FRONT_RIGHT_BIT - when using stereo - * DD_BACK_RIGHT_BIT - when using stereo and double buffering - * DD_AUXn_BIT - if aux buffers are implemented - */ -#endif - - /*** - *** Functions for synchronizing access to the framebuffer: - ***/ - - void (*SpanRenderStart)(GLcontext *ctx); - void (*SpanRenderFinish)(GLcontext *ctx); - /* OPTIONAL. - * - * Called before and after all rendering operations, including DrawPixels, - * ReadPixels, Bitmap, span functions, and CopyTexImage, etc commands. - * These are a suitable place for grabbing/releasing hardware locks. - * - * NOTE: The swrast triangle/line/point routines *DO NOT* call - * these functions. Locking in that case must be organized by the - * driver by other mechanisms. - */ -}; - - - -#endif |