diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/rastpos.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/rastpos.c | 1001 |
1 files changed, 0 insertions, 1001 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/rastpos.c b/nx-X11/extras/Mesa/src/mesa/main/rastpos.c deleted file mode 100644 index 507eb9f98..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/rastpos.c +++ /dev/null @@ -1,1001 +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 rastpos.c - * Raster position operations. - */ - -#include "glheader.h" -#include "colormac.h" -#include "context.h" -#include "feedback.h" -#include "light.h" -#include "macros.h" -#include "rastpos.h" -#include "state.h" -#include "simple_list.h" -#include "mtypes.h" - -#include "math/m_matrix.h" - - -/** - * Clip a point against the view volume. - * - * \param v vertex vector describing the point to clip. - * - * \return zero if outside view volume, or one if inside. - */ -static GLuint -viewclip_point( const GLfloat v[] ) -{ - if ( v[0] > v[3] || v[0] < -v[3] - || v[1] > v[3] || v[1] < -v[3] - || v[2] > v[3] || v[2] < -v[3] ) { - return 0; - } - else { - return 1; - } -} - - -/** - * Clip a point against the far/near Z clipping planes. - * - * \param v vertex vector describing the point to clip. - * - * \return zero if outside view volume, or one if inside. - */ -static GLuint -viewclip_point_z( const GLfloat v[] ) -{ - if (v[2] > v[3] || v[2] < -v[3] ) { - return 0; - } - else { - return 1; - } -} - - -/** - * Clip a point against the user clipping planes. - * - * \param ctx GL context. - * \param v vertex vector describing the point to clip. - * - * \return zero if the point was clipped, or one otherwise. - */ -static GLuint -userclip_point( GLcontext *ctx, const GLfloat v[] ) -{ - GLuint p; - - for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { - if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { - GLfloat dot = v[0] * ctx->Transform._ClipUserPlane[p][0] - + v[1] * ctx->Transform._ClipUserPlane[p][1] - + v[2] * ctx->Transform._ClipUserPlane[p][2] - + v[3] * ctx->Transform._ClipUserPlane[p][3]; - if (dot < 0.0F) { - return 0; - } - } - } - - return 1; -} - - -/** - * This has been split off to allow the normal shade routines to - * get a little closer to the vertex buffer, and to use the - * GLvector objects directly. - * \param ctx the context - * \param vertex vertex location - * \param normal normal vector - * \param Rcolor returned color - * \param Rspec returned specular color (if separate specular enabled) - * \param Rindex returned color index - */ -static void -shade_rastpos(GLcontext *ctx, - const GLfloat vertex[4], - const GLfloat normal[3], - GLfloat Rcolor[4], - GLfloat Rspec[4], - GLfloat *Rindex) -{ - GLfloat (*base)[3] = ctx->Light._BaseColor; - struct gl_light *light; - GLfloat diffuseColor[4], specularColor[4]; - GLfloat diffuse = 0, specular = 0; - - if (!ctx->_ShineTable[0] || !ctx->_ShineTable[1]) - _mesa_validate_all_lighting_tables( ctx ); - - COPY_3V(diffuseColor, base[0]); - diffuseColor[3] = CLAMP( - ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3], 0.0F, 1.0F ); - ASSIGN_4V(specularColor, 0.0, 0.0, 0.0, 0.0); - - foreach (light, &ctx->Light.EnabledList) { - GLfloat n_dot_h; - GLfloat attenuation = 1.0; - GLfloat VP[3]; - GLfloat n_dot_VP; - GLfloat *h; - GLfloat diffuseContrib[3], specularContrib[3]; - GLboolean normalized; - - if (!(light->_Flags & LIGHT_POSITIONAL)) { - COPY_3V(VP, light->_VP_inf_norm); - attenuation = light->_VP_inf_spot_attenuation; - } - else { - GLfloat d; - - SUB_3V(VP, light->_Position, vertex); - d = (GLfloat) LEN_3FV( VP ); - - if ( d > 1e-6) { - GLfloat invd = 1.0F / d; - SELF_SCALE_SCALAR_3V(VP, invd); - } - attenuation = 1.0F / (light->ConstantAttenuation + d * - (light->LinearAttenuation + d * - light->QuadraticAttenuation)); - - if (light->_Flags & LIGHT_SPOT) { - GLfloat PV_dot_dir = - DOT3(VP, light->_NormDirection); - - if (PV_dot_dir<light->_CosCutoff) { - continue; - } - else { - double x = PV_dot_dir * (EXP_TABLE_SIZE-1); - int k = (int) x; - GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] - + (x-k)*light->_SpotExpTable[k][1]); - attenuation *= spot; - } - } - } - - if (attenuation < 1e-3) - continue; - - n_dot_VP = DOT3( normal, VP ); - - if (n_dot_VP < 0.0F) { - ACC_SCALE_SCALAR_3V(diffuseColor, attenuation, light->_MatAmbient[0]); - continue; - } - - COPY_3V(diffuseContrib, light->_MatAmbient[0]); - ACC_SCALE_SCALAR_3V(diffuseContrib, n_dot_VP, light->_MatDiffuse[0]); - diffuse += n_dot_VP * light->_dli * attenuation; - ASSIGN_3V(specularContrib, 0.0, 0.0, 0.0); - - { - if (ctx->Light.Model.LocalViewer) { - GLfloat v[3]; - COPY_3V(v, vertex); - NORMALIZE_3FV(v); - SUB_3V(VP, VP, v); - h = VP; - normalized = 0; - } - else if (light->_Flags & LIGHT_POSITIONAL) { - h = VP; - ACC_3V(h, ctx->_EyeZDir); - normalized = 0; - } - else { - h = light->_h_inf_norm; - normalized = 1; - } - - n_dot_h = DOT3(normal, h); - - if (n_dot_h > 0.0F) { - GLfloat (*mat)[4] = ctx->Light.Material.Attrib; - GLfloat spec_coef; - GLfloat shininess = mat[MAT_ATTRIB_FRONT_SHININESS][0]; - - if (!normalized) { - n_dot_h *= n_dot_h; - n_dot_h /= LEN_SQUARED_3FV( h ); - shininess *= .5; - } - - GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec_coef ); - - if (spec_coef > 1.0e-10) { - if (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) { - ACC_SCALE_SCALAR_3V( specularContrib, spec_coef, - light->_MatSpecular[0]); - } - else { - ACC_SCALE_SCALAR_3V( diffuseContrib, spec_coef, - light->_MatSpecular[0]); - } - specular += spec_coef * light->_sli * attenuation; - } - } - } - - ACC_SCALE_SCALAR_3V( diffuseColor, attenuation, diffuseContrib ); - ACC_SCALE_SCALAR_3V( specularColor, attenuation, specularContrib ); - } - - if (ctx->Visual.rgbMode) { - Rcolor[0] = CLAMP(diffuseColor[0], 0.0F, 1.0F); - Rcolor[1] = CLAMP(diffuseColor[1], 0.0F, 1.0F); - Rcolor[2] = CLAMP(diffuseColor[2], 0.0F, 1.0F); - Rcolor[3] = CLAMP(diffuseColor[3], 0.0F, 1.0F); - Rspec[0] = CLAMP(specularColor[0], 0.0F, 1.0F); - Rspec[1] = CLAMP(specularColor[1], 0.0F, 1.0F); - Rspec[2] = CLAMP(specularColor[2], 0.0F, 1.0F); - Rspec[3] = CLAMP(specularColor[3], 0.0F, 1.0F); - } - else { - GLfloat *ind = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_INDEXES]; - GLfloat d_a = ind[MAT_INDEX_DIFFUSE] - ind[MAT_INDEX_AMBIENT]; - GLfloat s_a = ind[MAT_INDEX_SPECULAR] - ind[MAT_INDEX_AMBIENT]; - GLfloat i = (ind[MAT_INDEX_AMBIENT] - + diffuse * (1.0F-specular) * d_a - + specular * s_a); - if (i > ind[MAT_INDEX_SPECULAR]) { - i = ind[MAT_INDEX_SPECULAR]; - } - *Rindex = i; - } -} - - -/** - * Do texgen needed for glRasterPos. - * \param ctx rendering context - * \param vObj object-space vertex coordinate - * \param vEye eye-space vertex coordinate - * \param normal vertex normal - * \param unit texture unit number - * \param texcoord incoming texcoord and resulting texcoord - */ -static void -compute_texgen(GLcontext *ctx, const GLfloat vObj[4], const GLfloat vEye[4], - const GLfloat normal[3], GLuint unit, GLfloat texcoord[4]) -{ - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - - /* always compute sphere map terms, just in case */ - GLfloat u[3], two_nu, rx, ry, rz, m, mInv; - COPY_3V(u, vEye); - NORMALIZE_3FV(u); - two_nu = 2.0F * DOT3(normal, u); - rx = u[0] - normal[0] * two_nu; - ry = u[1] - normal[1] * two_nu; - rz = u[2] - normal[2] * two_nu; - m = rx * rx + ry * ry + (rz + 1.0F) * (rz + 1.0F); - if (m > 0.0F) - mInv = 0.5F * _mesa_inv_sqrtf(m); - else - mInv = 0.0F; - - if (texUnit->TexGenEnabled & S_BIT) { - switch (texUnit->GenModeS) { - case GL_OBJECT_LINEAR: - texcoord[0] = DOT4(vObj, texUnit->ObjectPlaneS); - break; - case GL_EYE_LINEAR: - texcoord[0] = DOT4(vEye, texUnit->EyePlaneS); - break; - case GL_SPHERE_MAP: - texcoord[0] = rx * mInv + 0.5F; - break; - case GL_REFLECTION_MAP: - texcoord[0] = rx; - break; - case GL_NORMAL_MAP: - texcoord[0] = normal[0]; - break; - default: - _mesa_problem(ctx, "Bad S texgen in compute_texgen()"); - return; - } - } - - if (texUnit->TexGenEnabled & T_BIT) { - switch (texUnit->GenModeT) { - case GL_OBJECT_LINEAR: - texcoord[1] = DOT4(vObj, texUnit->ObjectPlaneT); - break; - case GL_EYE_LINEAR: - texcoord[1] = DOT4(vEye, texUnit->EyePlaneT); - break; - case GL_SPHERE_MAP: - texcoord[1] = ry * mInv + 0.5F; - break; - case GL_REFLECTION_MAP: - texcoord[1] = ry; - break; - case GL_NORMAL_MAP: - texcoord[1] = normal[1]; - break; - default: - _mesa_problem(ctx, "Bad T texgen in compute_texgen()"); - return; - } - } - - if (texUnit->TexGenEnabled & R_BIT) { - switch (texUnit->GenModeR) { - case GL_OBJECT_LINEAR: - texcoord[2] = DOT4(vObj, texUnit->ObjectPlaneR); - break; - case GL_EYE_LINEAR: - texcoord[2] = DOT4(vEye, texUnit->EyePlaneR); - break; - case GL_REFLECTION_MAP: - texcoord[2] = rz; - break; - case GL_NORMAL_MAP: - texcoord[2] = normal[2]; - break; - default: - _mesa_problem(ctx, "Bad R texgen in compute_texgen()"); - return; - } - } - - if (texUnit->TexGenEnabled & Q_BIT) { - switch (texUnit->GenModeQ) { - case GL_OBJECT_LINEAR: - texcoord[3] = DOT4(vObj, texUnit->ObjectPlaneQ); - break; - case GL_EYE_LINEAR: - texcoord[3] = DOT4(vEye, texUnit->EyePlaneQ); - break; - default: - _mesa_problem(ctx, "Bad Q texgen in compute_texgen()"); - return; - } - } -} - - - -/** - * Set the raster position for pixel operations. - * - * All glRasterPos command call this function to update the current - * raster position. - * - * \param ctx GL context. - * \param x x coordinate for the raster position. - * \param y y coordinate for the raster position. - * \param z z coordinate for the raster position. - * \param w w coordinate for the raster position. - * - * \sa Called by _mesa_RasterPos4f(). - * - * Flushes the vertices, transforms and clips the vertex coordinates, and - * finally sets the current raster position and associated data in - * __GLcontextRec::Current. When in selection mode calls - * _mesa_update_hitflag() with the current raster position. - */ -static void -raster_pos4f(GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z, GLfloat w) -{ - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - FLUSH_CURRENT(ctx, 0); - - if (ctx->NewState) - _mesa_update_state( ctx ); - - if (ctx->VertexProgram._Enabled) { - /* XXX implement this */ - _mesa_problem(ctx, "Vertex programs not implemented for glRasterPos"); - return; - } - else { - GLfloat obj[4], eye[4], clip[4], ndc[3], d; - GLfloat *norm, eyenorm[3]; - GLfloat *objnorm = ctx->Current.Attrib[VERT_ATTRIB_NORMAL]; - - ASSIGN_4V( obj, x, y, z, w ); - /* apply modelview matrix: eye = MV * obj */ - TRANSFORM_POINT( eye, ctx->ModelviewMatrixStack.Top->m, obj ); - /* apply projection matrix: clip = Proj * eye */ - TRANSFORM_POINT( clip, ctx->ProjectionMatrixStack.Top->m, eye ); - - /* clip to view volume */ - if (ctx->Transform.RasterPositionUnclipped) { - /* GL_IBM_rasterpos_clip: only clip against Z */ - if (viewclip_point_z(clip) == 0) { - ctx->Current.RasterPosValid = GL_FALSE; - return; - } - } - else if (viewclip_point(clip) == 0) { - /* Normal OpenGL behaviour */ - ctx->Current.RasterPosValid = GL_FALSE; - return; - } - - /* clip to user clipping planes */ - if (ctx->Transform.ClipPlanesEnabled && !userclip_point(ctx, clip)) { - ctx->Current.RasterPosValid = GL_FALSE; - return; - } - - /* ndc = clip / W */ - d = (clip[3] == 0.0F) ? 1.0F : 1.0F / clip[3]; - ndc[0] = clip[0] * d; - ndc[1] = clip[1] * d; - ndc[2] = clip[2] * d; - /* wincoord = viewport_mapping(ndc) */ - ctx->Current.RasterPos[0] = (ndc[0] * ctx->Viewport._WindowMap.m[MAT_SX] - + ctx->Viewport._WindowMap.m[MAT_TX]); - ctx->Current.RasterPos[1] = (ndc[1] * ctx->Viewport._WindowMap.m[MAT_SY] - + ctx->Viewport._WindowMap.m[MAT_TY]); - ctx->Current.RasterPos[2] = (ndc[2] * ctx->Viewport._WindowMap.m[MAT_SZ] - + ctx->Viewport._WindowMap.m[MAT_TZ]) - / ctx->DrawBuffer->_DepthMaxF; - ctx->Current.RasterPos[3] = clip[3]; - - /* compute raster distance */ - if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) - ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0]; - else - ctx->Current.RasterDistance = - SQRTF( eye[0]*eye[0] + eye[1]*eye[1] + eye[2]*eye[2] ); - - /* compute transformed normal vector (for lighting or texgen) */ - if (ctx->_NeedEyeCoords) { - const GLfloat *inv = ctx->ModelviewMatrixStack.Top->inv; - TRANSFORM_NORMAL( eyenorm, objnorm, inv ); - norm = eyenorm; - } - else { - norm = objnorm; - } - - /* update raster color */ - if (ctx->Light.Enabled) { - /* lighting */ - shade_rastpos( ctx, obj, norm, - ctx->Current.RasterColor, - ctx->Current.RasterSecondaryColor, - &ctx->Current.RasterIndex ); - } - else { - /* use current color or index */ - if (ctx->Visual.rgbMode) { - COPY_4FV(ctx->Current.RasterColor, - ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); - COPY_4FV(ctx->Current.RasterSecondaryColor, - ctx->Current.Attrib[VERT_ATTRIB_COLOR1]); - } - else { - ctx->Current.RasterIndex = ctx->Current.Index; - } - } - - /* texture coords */ - { - GLuint u; - for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) { - GLfloat tc[4]; - COPY_4V(tc, ctx->Current.Attrib[VERT_ATTRIB_TEX0 + u]); - if (ctx->Texture.Unit[u].TexGenEnabled) { - compute_texgen(ctx, obj, eye, norm, u, tc); - } - TRANSFORM_POINT(ctx->Current.RasterTexCoords[u], - ctx->TextureMatrixStack[u].Top->m, tc); - } - } - - ctx->Current.RasterPosValid = GL_TRUE; - } - - if (ctx->RenderMode == GL_SELECT) { - _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] ); - } -} - - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos2d(GLdouble x, GLdouble y) -{ - _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos2f(GLfloat x, GLfloat y) -{ - _mesa_RasterPos4f(x, y, 0.0F, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos2i(GLint x, GLint y) -{ - _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos2s(GLshort x, GLshort y) -{ - _mesa_RasterPos4f(x, y, 0.0F, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos3d(GLdouble x, GLdouble y, GLdouble z) -{ - _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos3f(GLfloat x, GLfloat y, GLfloat z) -{ - _mesa_RasterPos4f(x, y, z, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos3i(GLint x, GLint y, GLint z) -{ - _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos3s(GLshort x, GLshort y, GLshort z) -{ - _mesa_RasterPos4f(x, y, z, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos4d(GLdouble x, GLdouble y, GLdouble z, GLdouble w) -{ - _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); -} - -/** Calls raster_pos4f() */ -void GLAPIENTRY -_mesa_RasterPos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w) -{ - GET_CURRENT_CONTEXT(ctx); - raster_pos4f(ctx, x, y, z, w); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos4i(GLint x, GLint y, GLint z, GLint w) -{ - _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos4s(GLshort x, GLshort y, GLshort z, GLshort w) -{ - _mesa_RasterPos4f(x, y, z, w); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos2dv(const GLdouble *v) -{ - _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos2fv(const GLfloat *v) -{ - _mesa_RasterPos4f(v[0], v[1], 0.0F, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos2iv(const GLint *v) -{ - _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos2sv(const GLshort *v) -{ - _mesa_RasterPos4f(v[0], v[1], 0.0F, 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos3dv(const GLdouble *v) -{ - _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos3fv(const GLfloat *v) -{ - _mesa_RasterPos4f(v[0], v[1], v[2], 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos3iv(const GLint *v) -{ - _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos3sv(const GLshort *v) -{ - _mesa_RasterPos4f(v[0], v[1], v[2], 1.0F); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos4dv(const GLdouble *v) -{ - _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], - (GLfloat) v[2], (GLfloat) v[3]); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos4fv(const GLfloat *v) -{ - _mesa_RasterPos4f(v[0], v[1], v[2], v[3]); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos4iv(const GLint *v) -{ - _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], - (GLfloat) v[2], (GLfloat) v[3]); -} - -/** Calls _mesa_RasterPos4f() */ -void GLAPIENTRY -_mesa_RasterPos4sv(const GLshort *v) -{ - _mesa_RasterPos4f(v[0], v[1], v[2], v[3]); -} - - -/**********************************************************************/ -/*** GL_ARB_window_pos / GL_MESA_window_pos ***/ -/**********************************************************************/ - -#if FEATURE_windowpos -/** - * All glWindowPosMESA and glWindowPosARB commands call this function to - * update the current raster position. - */ -static void -window_pos3f(GLfloat x, GLfloat y, GLfloat z) -{ - GET_CURRENT_CONTEXT(ctx); - GLfloat z2; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - FLUSH_CURRENT(ctx, 0); - - z2 = CLAMP(z, 0.0F, 1.0F) * (ctx->Viewport.Far - ctx->Viewport.Near) - + ctx->Viewport.Near; - - /* set raster position */ - ctx->Current.RasterPos[0] = x; - ctx->Current.RasterPos[1] = y; - ctx->Current.RasterPos[2] = z2; - ctx->Current.RasterPos[3] = 1.0F; - - ctx->Current.RasterPosValid = GL_TRUE; - - if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) - ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0]; - else - ctx->Current.RasterDistance = 0.0; - - /* raster color = current color or index */ - if (ctx->Visual.rgbMode) { - ctx->Current.RasterColor[0] - = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][0], 0.0F, 1.0F); - ctx->Current.RasterColor[1] - = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][1], 0.0F, 1.0F); - ctx->Current.RasterColor[2] - = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][2], 0.0F, 1.0F); - ctx->Current.RasterColor[3] - = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][3], 0.0F, 1.0F); - ctx->Current.RasterSecondaryColor[0] - = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][0], 0.0F, 1.0F); - ctx->Current.RasterSecondaryColor[1] - = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][1], 0.0F, 1.0F); - ctx->Current.RasterSecondaryColor[2] - = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][2], 0.0F, 1.0F); - ctx->Current.RasterSecondaryColor[3] - = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][3], 0.0F, 1.0F); - } - else { - ctx->Current.RasterIndex = ctx->Current.Index; - } - - /* raster texcoord = current texcoord */ - { - GLuint texSet; - for (texSet = 0; texSet < ctx->Const.MaxTextureCoordUnits; texSet++) { - COPY_4FV( ctx->Current.RasterTexCoords[texSet], - ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texSet] ); - } - } - - if (ctx->RenderMode==GL_SELECT) { - _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] ); - } -} - - -/* This is just to support the GL_MESA_window_pos version */ -static void -window_pos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w) -{ - GET_CURRENT_CONTEXT(ctx); - window_pos3f(x, y, z); - ctx->Current.RasterPos[3] = w; -} - - -void GLAPIENTRY -_mesa_WindowPos2dMESA(GLdouble x, GLdouble y) -{ - window_pos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos2fMESA(GLfloat x, GLfloat y) -{ - window_pos4f(x, y, 0.0F, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos2iMESA(GLint x, GLint y) -{ - window_pos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos2sMESA(GLshort x, GLshort y) -{ - window_pos4f(x, y, 0.0F, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos3dMESA(GLdouble x, GLdouble y, GLdouble z) -{ - window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos3fMESA(GLfloat x, GLfloat y, GLfloat z) -{ - window_pos4f(x, y, z, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos3iMESA(GLint x, GLint y, GLint z) -{ - window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos3sMESA(GLshort x, GLshort y, GLshort z) -{ - window_pos4f(x, y, z, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos4dMESA(GLdouble x, GLdouble y, GLdouble z, GLdouble w) -{ - window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); -} - -void GLAPIENTRY -_mesa_WindowPos4fMESA(GLfloat x, GLfloat y, GLfloat z, GLfloat w) -{ - window_pos4f(x, y, z, w); -} - -void GLAPIENTRY -_mesa_WindowPos4iMESA(GLint x, GLint y, GLint z, GLint w) -{ - window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); -} - -void GLAPIENTRY -_mesa_WindowPos4sMESA(GLshort x, GLshort y, GLshort z, GLshort w) -{ - window_pos4f(x, y, z, w); -} - -void GLAPIENTRY -_mesa_WindowPos2dvMESA(const GLdouble *v) -{ - window_pos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos2fvMESA(const GLfloat *v) -{ - window_pos4f(v[0], v[1], 0.0F, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos2ivMESA(const GLint *v) -{ - window_pos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos2svMESA(const GLshort *v) -{ - window_pos4f(v[0], v[1], 0.0F, 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos3dvMESA(const GLdouble *v) -{ - window_pos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos3fvMESA(const GLfloat *v) -{ - window_pos4f(v[0], v[1], v[2], 1.0); -} - -void GLAPIENTRY -_mesa_WindowPos3ivMESA(const GLint *v) -{ - window_pos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos3svMESA(const GLshort *v) -{ - window_pos4f(v[0], v[1], v[2], 1.0F); -} - -void GLAPIENTRY -_mesa_WindowPos4dvMESA(const GLdouble *v) -{ - window_pos4f((GLfloat) v[0], (GLfloat) v[1], - (GLfloat) v[2], (GLfloat) v[3]); -} - -void GLAPIENTRY -_mesa_WindowPos4fvMESA(const GLfloat *v) -{ - window_pos4f(v[0], v[1], v[2], v[3]); -} - -void GLAPIENTRY -_mesa_WindowPos4ivMESA(const GLint *v) -{ - window_pos4f((GLfloat) v[0], (GLfloat) v[1], - (GLfloat) v[2], (GLfloat) v[3]); -} - -void GLAPIENTRY -_mesa_WindowPos4svMESA(const GLshort *v) -{ - window_pos4f(v[0], v[1], v[2], v[3]); -} - -#endif - -#if 0 - -/* - * OpenGL implementation of glWindowPos*MESA() - */ -void glWindowPos4fMESA( GLfloat x, GLfloat y, GLfloat z, GLfloat w ) -{ - GLfloat fx, fy; - - /* Push current matrix mode and viewport attributes */ - glPushAttrib( GL_TRANSFORM_BIT | GL_VIEWPORT_BIT ); - - /* Setup projection parameters */ - glMatrixMode( GL_PROJECTION ); - glPushMatrix(); - glLoadIdentity(); - glMatrixMode( GL_MODELVIEW ); - glPushMatrix(); - glLoadIdentity(); - - glDepthRange( z, z ); - glViewport( (int) x - 1, (int) y - 1, 2, 2 ); - - /* set the raster (window) position */ - fx = x - (int) x; - fy = y - (int) y; - glRasterPos4f( fx, fy, 0.0, w ); - - /* restore matrices, viewport and matrix mode */ - glPopMatrix(); - glMatrixMode( GL_PROJECTION ); - glPopMatrix(); - - glPopAttrib(); -} - -#endif - - -/**********************************************************************/ -/** \name Initialization */ -/**********************************************************************/ -/*@{*/ - -/** - * Initialize the context current raster position information. - * - * \param ctx GL context. - * - * Initialize the current raster position information in - * __GLcontextRec::Current, and adds the extension entry points to the - * dispatcher. - */ -void _mesa_init_rastpos( GLcontext * ctx ) -{ - int i; - - ASSIGN_4V( ctx->Current.RasterPos, 0.0, 0.0, 0.0, 1.0 ); - ctx->Current.RasterDistance = 0.0; - ASSIGN_4V( ctx->Current.RasterColor, 1.0, 1.0, 1.0, 1.0 ); - ctx->Current.RasterIndex = 1.0; - for (i=0; i<MAX_TEXTURE_UNITS; i++) - ASSIGN_4V( ctx->Current.RasterTexCoords[i], 0.0, 0.0, 0.0, 1.0 ); - ctx->Current.RasterPosValid = GL_TRUE; -} - -/*@}*/ |