diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/histogram.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/histogram.c | 1187 |
1 files changed, 0 insertions, 1187 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/histogram.c b/nx-X11/extras/Mesa/src/mesa/main/histogram.c deleted file mode 100644 index 29aced0c7..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/histogram.c +++ /dev/null @@ -1,1187 +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. - */ - - -#include "glheader.h" -#include "bufferobj.h" -#include "colormac.h" -#include "context.h" -#include "image.h" -#include "histogram.h" - - -/********************************************************************** - * Internal functions - */ - - -/* - * Update the min/max values from an array of fragment colors. - */ -void -_mesa_update_minmax(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]) -{ - GLuint i; - for (i = 0; i < n; i++) { - /* update mins */ - if (rgba[i][RCOMP] < ctx->MinMax.Min[RCOMP]) - ctx->MinMax.Min[RCOMP] = rgba[i][RCOMP]; - if (rgba[i][GCOMP] < ctx->MinMax.Min[GCOMP]) - ctx->MinMax.Min[GCOMP] = rgba[i][GCOMP]; - if (rgba[i][BCOMP] < ctx->MinMax.Min[BCOMP]) - ctx->MinMax.Min[BCOMP] = rgba[i][BCOMP]; - if (rgba[i][ACOMP] < ctx->MinMax.Min[ACOMP]) - ctx->MinMax.Min[ACOMP] = rgba[i][ACOMP]; - - /* update maxs */ - if (rgba[i][RCOMP] > ctx->MinMax.Max[RCOMP]) - ctx->MinMax.Max[RCOMP] = rgba[i][RCOMP]; - if (rgba[i][GCOMP] > ctx->MinMax.Max[GCOMP]) - ctx->MinMax.Max[GCOMP] = rgba[i][GCOMP]; - if (rgba[i][BCOMP] > ctx->MinMax.Max[BCOMP]) - ctx->MinMax.Max[BCOMP] = rgba[i][BCOMP]; - if (rgba[i][ACOMP] > ctx->MinMax.Max[ACOMP]) - ctx->MinMax.Max[ACOMP] = rgba[i][ACOMP]; - } -} - - -/* - * Update the histogram values from an array of fragment colors. - */ -void -_mesa_update_histogram(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]) -{ - const GLint max = ctx->Histogram.Width - 1; - GLfloat w = (GLfloat) max; - GLuint i; - - if (ctx->Histogram.Width == 0) - return; - - for (i = 0; i < n; i++) { - GLint ri = IROUND(rgba[i][RCOMP] * w); - GLint gi = IROUND(rgba[i][GCOMP] * w); - GLint bi = IROUND(rgba[i][BCOMP] * w); - GLint ai = IROUND(rgba[i][ACOMP] * w); - ri = CLAMP(ri, 0, max); - gi = CLAMP(gi, 0, max); - bi = CLAMP(bi, 0, max); - ai = CLAMP(ai, 0, max); - ctx->Histogram.Count[ri][RCOMP]++; - ctx->Histogram.Count[gi][GCOMP]++; - ctx->Histogram.Count[bi][BCOMP]++; - ctx->Histogram.Count[ai][ACOMP]++; - } -} - - -/* - * XXX the packed pixel formats haven't been tested. - */ -static void -pack_histogram( GLcontext *ctx, - GLuint n, CONST GLuint rgba[][4], - GLenum format, GLenum type, GLvoid *destination, - const struct gl_pixelstore_attrib *packing ) -{ - const GLint comps = _mesa_components_in_format(format); - GLuint luminance[MAX_WIDTH]; - - if (format == GL_LUMINANCE || format == GL_LUMINANCE_ALPHA) { - GLuint i; - for (i = 0; i < n; i++) { - luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP]; - } - } - -#define PACK_MACRO(TYPE) \ - { \ - GLuint i; \ - switch (format) { \ - case GL_RED: \ - for (i=0;i<n;i++) \ - dst[i] = (TYPE) rgba[i][RCOMP]; \ - break; \ - case GL_GREEN: \ - for (i=0;i<n;i++) \ - dst[i] = (TYPE) rgba[i][GCOMP]; \ - break; \ - case GL_BLUE: \ - for (i=0;i<n;i++) \ - dst[i] = (TYPE) rgba[i][BCOMP]; \ - break; \ - case GL_ALPHA: \ - for (i=0;i<n;i++) \ - dst[i] = (TYPE) rgba[i][ACOMP]; \ - break; \ - case GL_LUMINANCE: \ - for (i=0;i<n;i++) \ - dst[i] = (TYPE) luminance[i]; \ - break; \ - case GL_LUMINANCE_ALPHA: \ - for (i=0;i<n;i++) { \ - dst[i*2+0] = (TYPE) luminance[i]; \ - dst[i*2+1] = (TYPE) rgba[i][ACOMP]; \ - } \ - break; \ - case GL_RGB: \ - for (i=0;i<n;i++) { \ - dst[i*3+0] = (TYPE) rgba[i][RCOMP]; \ - dst[i*3+1] = (TYPE) rgba[i][GCOMP]; \ - dst[i*3+2] = (TYPE) rgba[i][BCOMP]; \ - } \ - break; \ - case GL_RGBA: \ - for (i=0;i<n;i++) { \ - dst[i*4+0] = (TYPE) rgba[i][RCOMP]; \ - dst[i*4+1] = (TYPE) rgba[i][GCOMP]; \ - dst[i*4+2] = (TYPE) rgba[i][BCOMP]; \ - dst[i*4+3] = (TYPE) rgba[i][ACOMP]; \ - } \ - break; \ - case GL_BGR: \ - for (i=0;i<n;i++) { \ - dst[i*3+0] = (TYPE) rgba[i][BCOMP]; \ - dst[i*3+1] = (TYPE) rgba[i][GCOMP]; \ - dst[i*3+2] = (TYPE) rgba[i][RCOMP]; \ - } \ - break; \ - case GL_BGRA: \ - for (i=0;i<n;i++) { \ - dst[i*4+0] = (TYPE) rgba[i][BCOMP]; \ - dst[i*4+1] = (TYPE) rgba[i][GCOMP]; \ - dst[i*4+2] = (TYPE) rgba[i][RCOMP]; \ - dst[i*4+3] = (TYPE) rgba[i][ACOMP]; \ - } \ - break; \ - case GL_ABGR_EXT: \ - for (i=0;i<n;i++) { \ - dst[i*4+0] = (TYPE) rgba[i][ACOMP]; \ - dst[i*4+1] = (TYPE) rgba[i][BCOMP]; \ - dst[i*4+2] = (TYPE) rgba[i][GCOMP]; \ - dst[i*4+3] = (TYPE) rgba[i][RCOMP]; \ - } \ - break; \ - default: \ - _mesa_problem(ctx, "bad format in pack_histogram"); \ - } \ - } - - switch (type) { - case GL_UNSIGNED_BYTE: - { - GLubyte *dst = (GLubyte *) destination; - PACK_MACRO(GLubyte); - } - break; - case GL_BYTE: - { - GLbyte *dst = (GLbyte *) destination; - PACK_MACRO(GLbyte); - } - break; - case GL_UNSIGNED_SHORT: - { - GLushort *dst = (GLushort *) destination; - PACK_MACRO(GLushort); - if (packing->SwapBytes) { - _mesa_swap2(dst, n * comps); - } - } - break; - case GL_SHORT: - { - GLshort *dst = (GLshort *) destination; - PACK_MACRO(GLshort); - if (packing->SwapBytes) { - _mesa_swap2((GLushort *) dst, n * comps); - } - } - break; - case GL_UNSIGNED_INT: - { - GLuint *dst = (GLuint *) destination; - PACK_MACRO(GLuint); - if (packing->SwapBytes) { - _mesa_swap4(dst, n * comps); - } - } - break; - case GL_INT: - { - GLint *dst = (GLint *) destination; - PACK_MACRO(GLint); - if (packing->SwapBytes) { - _mesa_swap4((GLuint *) dst, n * comps); - } - } - break; - case GL_FLOAT: - { - GLfloat *dst = (GLfloat *) destination; - PACK_MACRO(GLfloat); - if (packing->SwapBytes) { - _mesa_swap4((GLuint *) dst, n * comps); - } - } - break; - case GL_HALF_FLOAT_ARB: - { - /* temporarily store as GLuints */ - GLuint temp[4*HISTOGRAM_TABLE_SIZE]; - GLhalfARB *dst = (GLhalfARB *) destination; - GLuint i; - /* get GLuint values */ - PACK_MACRO(GLuint); - /* convert to GLhalf */ - for (i = 0; i < n * comps; i++) { - dst[i] = _mesa_float_to_half((GLfloat) temp[i]); - } - if (packing->SwapBytes) { - _mesa_swap2((GLushort *) dst, n * comps); - } - } - break; - case GL_UNSIGNED_BYTE_3_3_2: - if (format == GL_RGB) { - GLubyte *dst = (GLubyte *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0x7) << 5) - | ((rgba[i][GCOMP] & 0x7) << 2) - | ((rgba[i][BCOMP] & 0x3) ); - } - } - else { - GLubyte *dst = (GLubyte *) destination; - GLuint i; - ASSERT(format == GL_BGR); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][BCOMP] & 0x7) << 5) - | ((rgba[i][GCOMP] & 0x7) << 2) - | ((rgba[i][RCOMP] & 0x3) ); - } - } - break; - case GL_UNSIGNED_BYTE_2_3_3_REV: - if (format == GL_RGB) { - GLubyte *dst = (GLubyte *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0x3) << 6) - | ((rgba[i][GCOMP] & 0x7) << 3) - | ((rgba[i][BCOMP] & 0x7) ); - } - } - else { - GLubyte *dst = (GLubyte *) destination; - GLuint i; - ASSERT(format == GL_BGR); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][BCOMP] & 0x3) << 6) - | ((rgba[i][GCOMP] & 0x7) << 3) - | ((rgba[i][RCOMP] & 0x7) ); - } - } - break; - case GL_UNSIGNED_SHORT_5_6_5: - if (format == GL_RGB) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0x1f) << 11) - | ((rgba[i][GCOMP] & 0x3f) << 5) - | ((rgba[i][BCOMP] & 0x1f) ); - } - } - else { - GLushort *dst = (GLushort *) destination; - GLuint i; - ASSERT(format == GL_BGR); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][BCOMP] & 0x1f) << 11) - | ((rgba[i][GCOMP] & 0x3f) << 5) - | ((rgba[i][RCOMP] & 0x1f) ); - } - } - break; - case GL_UNSIGNED_SHORT_5_6_5_REV: - if (format == GL_RGB) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][BCOMP] & 0x1f) << 11) - | ((rgba[i][GCOMP] & 0x3f) << 5) - | ((rgba[i][RCOMP] & 0x1f) ); - } - } - else { - GLushort *dst = (GLushort *) destination; - GLuint i; - ASSERT(format == GL_BGR); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0x1f) << 11) - | ((rgba[i][GCOMP] & 0x3f) << 5) - | ((rgba[i][BCOMP] & 0x1f) ); - } - } - break; - case GL_UNSIGNED_SHORT_4_4_4_4: - if (format == GL_RGBA) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0xf) << 12) - | ((rgba[i][GCOMP] & 0xf) << 8) - | ((rgba[i][BCOMP] & 0xf) << 4) - | ((rgba[i][ACOMP] & 0xf) ); - } - } - else if (format == GL_BGRA) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][BCOMP] & 0xf) << 12) - | ((rgba[i][GCOMP] & 0xf) << 8) - | ((rgba[i][RCOMP] & 0xf) << 4) - | ((rgba[i][ACOMP] & 0xf) ); - } - } - else { - GLushort *dst = (GLushort *) destination; - GLuint i; - ASSERT(format == GL_ABGR_EXT); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0xf) << 12) - | ((rgba[i][BCOMP] & 0xf) << 8) - | ((rgba[i][GCOMP] & 0xf) << 4) - | ((rgba[i][RCOMP] & 0xf) ); - } - } - break; - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - if (format == GL_RGBA) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0xf) << 12) - | ((rgba[i][BCOMP] & 0xf) << 8) - | ((rgba[i][GCOMP] & 0xf) << 4) - | ((rgba[i][RCOMP] & 0xf) ); - } - } - else if (format == GL_BGRA) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0xf) << 12) - | ((rgba[i][RCOMP] & 0xf) << 8) - | ((rgba[i][GCOMP] & 0xf) << 4) - | ((rgba[i][BCOMP] & 0xf) ); - } - } - else { - GLushort *dst = (GLushort *) destination; - GLuint i; - ASSERT(format == GL_ABGR_EXT); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0xf) << 12) - | ((rgba[i][GCOMP] & 0xf) << 8) - | ((rgba[i][BCOMP] & 0xf) << 4) - | ((rgba[i][ACOMP] & 0xf) ); - } - } - break; - case GL_UNSIGNED_SHORT_5_5_5_1: - if (format == GL_RGBA) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0x1f) << 11) - | ((rgba[i][GCOMP] & 0x1f) << 6) - | ((rgba[i][BCOMP] & 0x1f) << 1) - | ((rgba[i][ACOMP] & 0x1) ); - } - } - else if (format == GL_BGRA) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][BCOMP] & 0x1f) << 11) - | ((rgba[i][GCOMP] & 0x1f) << 6) - | ((rgba[i][RCOMP] & 0x1f) << 1) - | ((rgba[i][ACOMP] & 0x1) ); - } - } - else { - GLushort *dst = (GLushort *) destination; - GLuint i; - ASSERT(format == GL_ABGR_EXT); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0x1f) << 11) - | ((rgba[i][BCOMP] & 0x1f) << 6) - | ((rgba[i][GCOMP] & 0x1f) << 1) - | ((rgba[i][RCOMP] & 0x1) ); - } - } - break; - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - if (format == GL_RGBA) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0x1f) << 11) - | ((rgba[i][BCOMP] & 0x1f) << 6) - | ((rgba[i][GCOMP] & 0x1f) << 1) - | ((rgba[i][RCOMP] & 0x1) ); - } - } - else if (format == GL_BGRA) { - GLushort *dst = (GLushort *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0x1f) << 11) - | ((rgba[i][RCOMP] & 0x1f) << 6) - | ((rgba[i][GCOMP] & 0x1f) << 1) - | ((rgba[i][BCOMP] & 0x1) ); - } - } - else { - GLushort *dst = (GLushort *) destination; - GLuint i; - ASSERT(format == GL_ABGR_EXT); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0x1f) << 11) - | ((rgba[i][GCOMP] & 0x1f) << 6) - | ((rgba[i][BCOMP] & 0x1f) << 1) - | ((rgba[i][ACOMP] & 0x1) ); - } - } - break; - case GL_UNSIGNED_INT_8_8_8_8: - if (format == GL_RGBA) { - GLuint *dst = (GLuint *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0xff) << 24) - | ((rgba[i][GCOMP] & 0xff) << 16) - | ((rgba[i][BCOMP] & 0xff) << 8) - | ((rgba[i][ACOMP] & 0xff) ); - } - } - else if (format == GL_BGRA) { - GLuint *dst = (GLuint *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][BCOMP] & 0xff) << 24) - | ((rgba[i][GCOMP] & 0xff) << 16) - | ((rgba[i][RCOMP] & 0xff) << 8) - | ((rgba[i][ACOMP] & 0xff) ); - } - } - else { - GLuint *dst = (GLuint *) destination; - GLuint i; - ASSERT(format == GL_ABGR_EXT); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0xff) << 24) - | ((rgba[i][BCOMP] & 0xff) << 16) - | ((rgba[i][GCOMP] & 0xff) << 8) - | ((rgba[i][RCOMP] & 0xff) ); - } - } - break; - case GL_UNSIGNED_INT_8_8_8_8_REV: - if (format == GL_RGBA) { - GLuint *dst = (GLuint *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0xff) << 24) - | ((rgba[i][BCOMP] & 0xff) << 16) - | ((rgba[i][GCOMP] & 0xff) << 8) - | ((rgba[i][RCOMP] & 0xff) ); - } - } - else if (format == GL_BGRA) { - GLuint *dst = (GLuint *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0xff) << 24) - | ((rgba[i][RCOMP] & 0xff) << 16) - | ((rgba[i][GCOMP] & 0xff) << 8) - | ((rgba[i][BCOMP] & 0xff) ); - } - } - else { - GLuint *dst = (GLuint *) destination; - GLuint i; - ASSERT(format == GL_ABGR_EXT); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0xff) << 24) - | ((rgba[i][GCOMP] & 0xff) << 16) - | ((rgba[i][BCOMP] & 0xff) << 8) - | ((rgba[i][ACOMP] & 0xff) ); - } - } - break; - case GL_UNSIGNED_INT_10_10_10_2: - if (format == GL_RGBA) { - GLuint *dst = (GLuint *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0x3ff) << 22) - | ((rgba[i][GCOMP] & 0x3ff) << 12) - | ((rgba[i][BCOMP] & 0x3ff) << 2) - | ((rgba[i][ACOMP] & 0x3) ); - } - } - else if (format == GL_BGRA) { - GLuint *dst = (GLuint *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][BCOMP] & 0x3ff) << 22) - | ((rgba[i][GCOMP] & 0x3ff) << 12) - | ((rgba[i][RCOMP] & 0x3ff) << 2) - | ((rgba[i][ACOMP] & 0x3) ); - } - } - else { - GLuint *dst = (GLuint *) destination; - GLuint i; - ASSERT(format == GL_ABGR_EXT); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0x3ff) << 22) - | ((rgba[i][BCOMP] & 0x3ff) << 12) - | ((rgba[i][GCOMP] & 0x3ff) << 2) - | ((rgba[i][RCOMP] & 0x3) ); - } - } - break; - case GL_UNSIGNED_INT_2_10_10_10_REV: - if (format == GL_RGBA) { - GLuint *dst = (GLuint *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0x3ff) << 22) - | ((rgba[i][BCOMP] & 0x3ff) << 12) - | ((rgba[i][GCOMP] & 0x3ff) << 2) - | ((rgba[i][RCOMP] & 0x3) ); - } - } - else if (format == GL_BGRA) { - GLuint *dst = (GLuint *) destination; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][ACOMP] & 0x3ff) << 22) - | ((rgba[i][RCOMP] & 0x3ff) << 12) - | ((rgba[i][GCOMP] & 0x3ff) << 2) - | ((rgba[i][BCOMP] & 0x3) ); - } - } - else { - GLuint *dst = (GLuint *) destination; - GLuint i; - ASSERT(format == GL_ABGR_EXT); - for (i = 0; i < n; i++) { - dst[i] = ((rgba[i][RCOMP] & 0x3ff) << 22) - | ((rgba[i][GCOMP] & 0x3ff) << 12) - | ((rgba[i][BCOMP] & 0x3ff) << 2) - | ((rgba[i][ACOMP] & 0x3) ); - } - } - break; - default: - _mesa_problem(ctx, "Bad type in pack_histogram"); - } - -#undef PACK_MACRO -} - - -/* - * Given an internalFormat token passed to glHistogram or glMinMax, - * return the corresponding base format. - * Return -1 if invalid token. - */ -static GLint -base_histogram_format( GLenum format ) -{ - switch (format) { - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - case GL_ALPHA12: - case GL_ALPHA16: - return GL_ALPHA; - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - case GL_LUMINANCE12: - case GL_LUMINANCE16: - return GL_LUMINANCE; - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE4_ALPHA4: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - return GL_LUMINANCE_ALPHA; - case GL_RGB: - case GL_R3_G3_B2: - case GL_RGB4: - case GL_RGB5: - case GL_RGB8: - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - return GL_RGB; - case GL_RGBA: - case GL_RGBA2: - case GL_RGBA4: - case GL_RGB5_A1: - case GL_RGBA8: - case GL_RGB10_A2: - case GL_RGBA12: - case GL_RGBA16: - return GL_RGBA; - default: - return -1; /* error */ - } -} - - - -/********************************************************************** - * API functions - */ - - -void GLAPIENTRY -_mesa_GetMinmax(GLenum target, GLboolean reset, GLenum format, GLenum type, GLvoid *values) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMinmax"); - return; - } - - if (target != GL_MINMAX) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinmax(target)"); - return; - } - - if (format != GL_RED && - format != GL_GREEN && - format != GL_BLUE && - format != GL_ALPHA && - format != GL_RGB && - format != GL_BGR && - format != GL_RGBA && - format != GL_BGRA && - format != GL_ABGR_EXT && - format != GL_LUMINANCE && - format != GL_LUMINANCE_ALPHA) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinMax(format)"); - } - - if (!_mesa_is_legal_format_and_type(ctx, format, type)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMinmax(format or type)"); - return; - } - - if (ctx->Pack.BufferObj->Name) { - /* pack min/max values into a PBO */ - GLubyte *buf; - if (!_mesa_validate_pbo_access(1, &ctx->Pack, 2, 1, 1, - format, type, values)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetMinMax(invalid PBO access)"); - return; - } - buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - GL_WRITE_ONLY_ARB, - ctx->Pack.BufferObj); - if (!buf) { - /* buffer is already mapped - that's an error */ - _mesa_error(ctx, GL_INVALID_OPERATION,"glGetMinMax(PBO is mapped)"); - return; - } - values = ADD_POINTERS(buf, values); - } - else if (!values) { - /* not an error */ - return; - } - - { - GLfloat minmax[2][4]; - minmax[0][RCOMP] = CLAMP(ctx->MinMax.Min[RCOMP], 0.0F, 1.0F); - minmax[0][GCOMP] = CLAMP(ctx->MinMax.Min[GCOMP], 0.0F, 1.0F); - minmax[0][BCOMP] = CLAMP(ctx->MinMax.Min[BCOMP], 0.0F, 1.0F); - minmax[0][ACOMP] = CLAMP(ctx->MinMax.Min[ACOMP], 0.0F, 1.0F); - minmax[1][RCOMP] = CLAMP(ctx->MinMax.Max[RCOMP], 0.0F, 1.0F); - minmax[1][GCOMP] = CLAMP(ctx->MinMax.Max[GCOMP], 0.0F, 1.0F); - minmax[1][BCOMP] = CLAMP(ctx->MinMax.Max[BCOMP], 0.0F, 1.0F); - minmax[1][ACOMP] = CLAMP(ctx->MinMax.Max[ACOMP], 0.0F, 1.0F); - _mesa_pack_rgba_span_float(ctx, 2, (CONST GLfloat (*)[4]) minmax, - format, type, values, &ctx->Pack, 0); - } - - if (ctx->Pack.BufferObj->Name) { - ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - ctx->Pack.BufferObj); - } - - if (reset) { - _mesa_ResetMinmax(GL_MINMAX); - } -} - - -void GLAPIENTRY -_mesa_GetHistogram(GLenum target, GLboolean reset, GLenum format, GLenum type, GLvoid *values) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetHistogram"); - return; - } - - if (target != GL_HISTOGRAM) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogram(target)"); - return; - } - - if (format != GL_RED && - format != GL_GREEN && - format != GL_BLUE && - format != GL_ALPHA && - format != GL_RGB && - format != GL_BGR && - format != GL_RGBA && - format != GL_BGRA && - format != GL_ABGR_EXT && - format != GL_LUMINANCE && - format != GL_LUMINANCE_ALPHA) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogram(format)"); - } - - if (!_mesa_is_legal_format_and_type(ctx, format, type)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetHistogram(format or type)"); - return; - } - - if (ctx->Pack.BufferObj->Name) { - /* pack min/max values into a PBO */ - GLubyte *buf; - if (!_mesa_validate_pbo_access(1, &ctx->Pack, ctx->Histogram.Width, 1, 1, - format, type, values)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetHistogram(invalid PBO access)"); - return; - } - buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - GL_WRITE_ONLY_ARB, - ctx->Pack.BufferObj); - if (!buf) { - /* buffer is already mapped - that's an error */ - _mesa_error(ctx,GL_INVALID_OPERATION,"glGetHistogram(PBO is mapped)"); - return; - } - values = ADD_POINTERS(buf, values); - } - else if (!values) { - /* not an error */ - return; - } - - pack_histogram(ctx, ctx->Histogram.Width, - (CONST GLuint (*)[4]) ctx->Histogram.Count, - format, type, values, &ctx->Pack); - - if (ctx->Pack.BufferObj->Name) { - ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - ctx->Pack.BufferObj); - } - - if (reset) { - GLuint i; - for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { - ctx->Histogram.Count[i][0] = 0; - ctx->Histogram.Count[i][1] = 0; - ctx->Histogram.Count[i][2] = 0; - ctx->Histogram.Count[i][3] = 0; - } - } -} - - -void GLAPIENTRY -_mesa_GetHistogramParameterfv(GLenum target, GLenum pname, GLfloat *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetHistogramParameterfv"); - return; - } - - if (target != GL_HISTOGRAM && target != GL_PROXY_HISTOGRAM) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogramParameterfv(target)"); - return; - } - - switch (pname) { - case GL_HISTOGRAM_WIDTH: - *params = (GLfloat) ctx->Histogram.Width; - break; - case GL_HISTOGRAM_FORMAT: - *params = (GLfloat) ctx->Histogram.Format; - break; - case GL_HISTOGRAM_RED_SIZE: - *params = (GLfloat) ctx->Histogram.RedSize; - break; - case GL_HISTOGRAM_GREEN_SIZE: - *params = (GLfloat) ctx->Histogram.GreenSize; - break; - case GL_HISTOGRAM_BLUE_SIZE: - *params = (GLfloat) ctx->Histogram.BlueSize; - break; - case GL_HISTOGRAM_ALPHA_SIZE: - *params = (GLfloat) ctx->Histogram.AlphaSize; - break; - case GL_HISTOGRAM_LUMINANCE_SIZE: - *params = (GLfloat) ctx->Histogram.LuminanceSize; - break; - case GL_HISTOGRAM_SINK: - *params = (GLfloat) ctx->Histogram.Sink; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogramParameterfv(pname)"); - } -} - - -void GLAPIENTRY -_mesa_GetHistogramParameteriv(GLenum target, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetHistogramParameteriv"); - return; - } - - if (target != GL_HISTOGRAM && target != GL_PROXY_HISTOGRAM) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogramParameteriv(target)"); - return; - } - - switch (pname) { - case GL_HISTOGRAM_WIDTH: - *params = (GLint) ctx->Histogram.Width; - break; - case GL_HISTOGRAM_FORMAT: - *params = (GLint) ctx->Histogram.Format; - break; - case GL_HISTOGRAM_RED_SIZE: - *params = (GLint) ctx->Histogram.RedSize; - break; - case GL_HISTOGRAM_GREEN_SIZE: - *params = (GLint) ctx->Histogram.GreenSize; - break; - case GL_HISTOGRAM_BLUE_SIZE: - *params = (GLint) ctx->Histogram.BlueSize; - break; - case GL_HISTOGRAM_ALPHA_SIZE: - *params = (GLint) ctx->Histogram.AlphaSize; - break; - case GL_HISTOGRAM_LUMINANCE_SIZE: - *params = (GLint) ctx->Histogram.LuminanceSize; - break; - case GL_HISTOGRAM_SINK: - *params = (GLint) ctx->Histogram.Sink; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogramParameteriv(pname)"); - } -} - - -void GLAPIENTRY -_mesa_GetMinmaxParameterfv(GLenum target, GLenum pname, GLfloat *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMinmaxParameterfv"); - return; - } - if (target != GL_MINMAX) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinmaxParameterfv(target)"); - return; - } - if (pname == GL_MINMAX_FORMAT) { - *params = (GLfloat) ctx->MinMax.Format; - } - else if (pname == GL_MINMAX_SINK) { - *params = (GLfloat) ctx->MinMax.Sink; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinMaxParameterfv(pname)"); - } -} - - -void GLAPIENTRY -_mesa_GetMinmaxParameteriv(GLenum target, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMinmaxParameteriv"); - return; - } - if (target != GL_MINMAX) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinmaxParameteriv(target)"); - return; - } - if (pname == GL_MINMAX_FORMAT) { - *params = (GLint) ctx->MinMax.Format; - } - else if (pname == GL_MINMAX_SINK) { - *params = (GLint) ctx->MinMax.Sink; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinMaxParameteriv(pname)"); - } -} - - -void GLAPIENTRY -_mesa_Histogram(GLenum target, GLsizei width, GLenum internalFormat, GLboolean sink) -{ - GLuint i; - GLboolean error = GL_FALSE; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* sideeffects */ - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glHistogram"); - return; - } - - if (target != GL_HISTOGRAM && target != GL_PROXY_HISTOGRAM) { - _mesa_error(ctx, GL_INVALID_ENUM, "glHistogram(target)"); - return; - } - - if (width < 0 || width > HISTOGRAM_TABLE_SIZE) { - if (target == GL_PROXY_HISTOGRAM) { - error = GL_TRUE; - } - else { - if (width < 0) - _mesa_error(ctx, GL_INVALID_VALUE, "glHistogram(width)"); - else - _mesa_error(ctx, GL_TABLE_TOO_LARGE, "glHistogram(width)"); - return; - } - } - - if (width != 0 && _mesa_bitcount(width) != 1) { - if (target == GL_PROXY_HISTOGRAM) { - error = GL_TRUE; - } - else { - _mesa_error(ctx, GL_INVALID_VALUE, "glHistogram(width)"); - return; - } - } - - if (base_histogram_format(internalFormat) < 0) { - if (target == GL_PROXY_HISTOGRAM) { - error = GL_TRUE; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glHistogram(internalFormat)"); - return; - } - } - - /* reset histograms */ - for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { - ctx->Histogram.Count[i][0] = 0; - ctx->Histogram.Count[i][1] = 0; - ctx->Histogram.Count[i][2] = 0; - ctx->Histogram.Count[i][3] = 0; - } - - if (error) { - ctx->Histogram.Width = 0; - ctx->Histogram.Format = 0; - ctx->Histogram.RedSize = 0; - ctx->Histogram.GreenSize = 0; - ctx->Histogram.BlueSize = 0; - ctx->Histogram.AlphaSize = 0; - ctx->Histogram.LuminanceSize = 0; - } - else { - ctx->Histogram.Width = width; - ctx->Histogram.Format = internalFormat; - ctx->Histogram.Sink = sink; - ctx->Histogram.RedSize = 8 * sizeof(GLuint); - ctx->Histogram.GreenSize = 8 * sizeof(GLuint); - ctx->Histogram.BlueSize = 8 * sizeof(GLuint); - ctx->Histogram.AlphaSize = 8 * sizeof(GLuint); - ctx->Histogram.LuminanceSize = 8 * sizeof(GLuint); - } - - ctx->NewState |= _NEW_PIXEL; -} - - -void GLAPIENTRY -_mesa_Minmax(GLenum target, GLenum internalFormat, GLboolean sink) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glMinmax"); - return; - } - - if (target != GL_MINMAX) { - _mesa_error(ctx, GL_INVALID_ENUM, "glMinMax(target)"); - return; - } - - if (base_histogram_format(internalFormat) < 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "glMinMax(internalFormat)"); - return; - } - - if (ctx->MinMax.Sink == sink) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->MinMax.Sink = sink; -} - - -void GLAPIENTRY -_mesa_ResetHistogram(GLenum target) -{ - GLuint i; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* sideeffects */ - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glResetHistogram"); - return; - } - - if (target != GL_HISTOGRAM) { - _mesa_error(ctx, GL_INVALID_ENUM, "glResetHistogram(target)"); - return; - } - - for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { - ctx->Histogram.Count[i][0] = 0; - ctx->Histogram.Count[i][1] = 0; - ctx->Histogram.Count[i][2] = 0; - ctx->Histogram.Count[i][3] = 0; - } - - ctx->NewState |= _NEW_PIXEL; -} - - -void GLAPIENTRY -_mesa_ResetMinmax(GLenum target) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glResetMinmax"); - return; - } - - if (target != GL_MINMAX) { - _mesa_error(ctx, GL_INVALID_ENUM, "glResetMinMax(target)"); - return; - } - - ctx->MinMax.Min[RCOMP] = 1000; ctx->MinMax.Max[RCOMP] = -1000; - ctx->MinMax.Min[GCOMP] = 1000; ctx->MinMax.Max[GCOMP] = -1000; - ctx->MinMax.Min[BCOMP] = 1000; ctx->MinMax.Max[BCOMP] = -1000; - ctx->MinMax.Min[ACOMP] = 1000; ctx->MinMax.Max[ACOMP] = -1000; - ctx->NewState |= _NEW_PIXEL; -} - - - -/**********************************************************************/ -/***** Initialization *****/ -/**********************************************************************/ - -void _mesa_init_histogram( GLcontext * ctx ) -{ - int i; - - /* Histogram group */ - ctx->Histogram.Width = 0; - ctx->Histogram.Format = GL_RGBA; - ctx->Histogram.Sink = GL_FALSE; - ctx->Histogram.RedSize = 0; - ctx->Histogram.GreenSize = 0; - ctx->Histogram.BlueSize = 0; - ctx->Histogram.AlphaSize = 0; - ctx->Histogram.LuminanceSize = 0; - for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { - ctx->Histogram.Count[i][0] = 0; - ctx->Histogram.Count[i][1] = 0; - ctx->Histogram.Count[i][2] = 0; - ctx->Histogram.Count[i][3] = 0; - } - - /* Min/Max group */ - ctx->MinMax.Format = GL_RGBA; - ctx->MinMax.Sink = GL_FALSE; - ctx->MinMax.Min[RCOMP] = 1000; ctx->MinMax.Max[RCOMP] = -1000; - ctx->MinMax.Min[GCOMP] = 1000; ctx->MinMax.Max[GCOMP] = -1000; - ctx->MinMax.Min[BCOMP] = 1000; ctx->MinMax.Max[BCOMP] = -1000; - ctx->MinMax.Min[ACOMP] = 1000; ctx->MinMax.Max[ACOMP] = -1000; -} |