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-rw-r--r--src/mesa/main/colortab.c1481
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diff --git a/src/mesa/main/colortab.c b/src/mesa/main/colortab.c
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+++ b/src/mesa/main/colortab.c
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+/*
+ * 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 "bufferobj.h"
+#include "colortab.h"
+#include "context.h"
+#include "image.h"
+#include "macros.h"
+#include "state.h"
+
+
+/*
+ * Given an internalFormat token passed to glColorTable,
+ * return the corresponding base format.
+ * Return -1 if invalid token.
+ */
+static GLint
+base_colortab_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_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return GL_INTENSITY;
+ 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 */
+ }
+}
+
+
+
+/*
+ * Examine table's format and set the component sizes accordingly.
+ */
+static void
+set_component_sizes( struct gl_color_table *table )
+{
+ GLubyte sz;
+
+ switch (table->Type) {
+ case GL_UNSIGNED_BYTE:
+ sz = 8 * sizeof(GLubyte);
+ break;
+ case GL_UNSIGNED_SHORT:
+ sz = 8 * sizeof(GLushort);
+ break;
+ case GL_FLOAT:
+ /* Don't actually return 32 here since that causes the conformance
+ * tests to blow up. Conform thinks the component is an integer,
+ * not a float.
+ */
+ sz = 8; /** 8 * sizeof(GLfloat); **/
+ break;
+ default:
+ _mesa_problem(NULL, "bad color table type in set_component_sizes 0x%x", table->Type);
+ return;
+ }
+
+ switch (table->_BaseFormat) {
+ case GL_ALPHA:
+ table->RedSize = 0;
+ table->GreenSize = 0;
+ table->BlueSize = 0;
+ table->AlphaSize = sz;
+ table->IntensitySize = 0;
+ table->LuminanceSize = 0;
+ break;
+ case GL_LUMINANCE:
+ table->RedSize = 0;
+ table->GreenSize = 0;
+ table->BlueSize = 0;
+ table->AlphaSize = 0;
+ table->IntensitySize = 0;
+ table->LuminanceSize = sz;
+ break;
+ case GL_LUMINANCE_ALPHA:
+ table->RedSize = 0;
+ table->GreenSize = 0;
+ table->BlueSize = 0;
+ table->AlphaSize = sz;
+ table->IntensitySize = 0;
+ table->LuminanceSize = sz;
+ break;
+ case GL_INTENSITY:
+ table->RedSize = 0;
+ table->GreenSize = 0;
+ table->BlueSize = 0;
+ table->AlphaSize = 0;
+ table->IntensitySize = sz;
+ table->LuminanceSize = 0;
+ break;
+ case GL_RGB:
+ table->RedSize = sz;
+ table->GreenSize = sz;
+ table->BlueSize = sz;
+ table->AlphaSize = 0;
+ table->IntensitySize = 0;
+ table->LuminanceSize = 0;
+ break;
+ case GL_RGBA:
+ table->RedSize = sz;
+ table->GreenSize = sz;
+ table->BlueSize = sz;
+ table->AlphaSize = sz;
+ table->IntensitySize = 0;
+ table->LuminanceSize = 0;
+ break;
+ default:
+ _mesa_problem(NULL, "unexpected format in set_component_sizes");
+ }
+}
+
+
+
+/**
+ * Update/replace all or part of a color table. Helper function
+ * used by _mesa_ColorTable() and _mesa_ColorSubTable().
+ * The table->Table buffer should already be allocated.
+ * \param start first entry to update
+ * \param count number of entries to update
+ * \param format format of user-provided table data
+ * \param type datatype of user-provided table data
+ * \param data user-provided table data
+ * \param [rgba]Scale - RGBA scale factors
+ * \param [rgba]Bias - RGBA bias factors
+ */
+static void
+store_colortable_entries(GLcontext *ctx, struct gl_color_table *table,
+ GLsizei start, GLsizei count,
+ GLenum format, GLenum type, const GLvoid *data,
+ GLfloat rScale, GLfloat rBias,
+ GLfloat gScale, GLfloat gBias,
+ GLfloat bScale, GLfloat bBias,
+ GLfloat aScale, GLfloat aBias)
+{
+ if (ctx->Unpack.BufferObj->Name) {
+ /* Get/unpack the color table data from a PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(1, &ctx->Unpack, count, 1, 1,
+ format, type, data)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glColor[Sub]Table(bad PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB,
+ ctx->Unpack.BufferObj);
+ if (!buf) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glColor[Sub]Table(PBO mapped)");
+ return;
+ }
+ data = ADD_POINTERS(buf, data);
+ }
+
+
+ if (table->Type == GL_FLOAT) {
+ /* convert user-provided data to GLfloat values */
+ GLfloat tempTab[MAX_COLOR_TABLE_SIZE * 4];
+ GLfloat *tableF;
+ GLint i;
+
+ _mesa_unpack_color_span_float(ctx,
+ count, /* number of pixels */
+ table->_BaseFormat, /* dest format */
+ tempTab, /* dest address */
+ format, type, /* src format/type */
+ data, /* src data */
+ &ctx->Unpack,
+ IMAGE_CLAMP_BIT); /* transfer ops */
+
+ /* the destination */
+ tableF = (GLfloat *) table->Table;
+
+ /* Apply scale & bias & clamp now */
+ switch (table->_BaseFormat) {
+ case GL_INTENSITY:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_LUMINANCE:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_ALPHA:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j] = CLAMP(tempTab[i] * aScale + aBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j*2+0] = CLAMP(tempTab[i*2+0] * rScale + rBias, 0.0F, 1.0F);
+ tableF[j*2+1] = CLAMP(tempTab[i*2+1] * aScale + aBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_RGB:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j*3+0] = CLAMP(tempTab[i*3+0] * rScale + rBias, 0.0F, 1.0F);
+ tableF[j*3+1] = CLAMP(tempTab[i*3+1] * gScale + gBias, 0.0F, 1.0F);
+ tableF[j*3+2] = CLAMP(tempTab[i*3+2] * bScale + bBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_RGBA:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j*4+0] = CLAMP(tempTab[i*4+0] * rScale + rBias, 0.0F, 1.0F);
+ tableF[j*4+1] = CLAMP(tempTab[i*4+1] * gScale + gBias, 0.0F, 1.0F);
+ tableF[j*4+2] = CLAMP(tempTab[i*4+2] * bScale + bBias, 0.0F, 1.0F);
+ tableF[j*4+3] = CLAMP(tempTab[i*4+3] * aScale + aBias, 0.0F, 1.0F);
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "Bad format in store_colortable_entries");
+ return;
+ }
+ }
+ else {
+ /* non-float (GLchan) */
+ const GLint comps = _mesa_components_in_format(table->_BaseFormat);
+ GLchan *dest = (GLchan *) table->Table + start * comps;
+ _mesa_unpack_color_span_chan(ctx, count, /* number of entries */
+ table->_BaseFormat, /* dest format */
+ dest, /* dest address */
+ format, type, data, /* src data */
+ &ctx->Unpack,
+ 0); /* transfer ops */
+ }
+
+ if (ctx->Unpack.BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ ctx->Unpack.BufferObj);
+ }
+}
+
+
+
+void GLAPIENTRY
+_mesa_ColorTable( GLenum target, GLenum internalFormat,
+ GLsizei width, GLenum format, GLenum type,
+ const GLvoid *data )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj = NULL;
+ struct gl_color_table *table = NULL;
+ GLboolean proxy = GL_FALSE;
+ GLint baseFormat;
+ GLfloat rScale = 1.0, gScale = 1.0, bScale = 1.0, aScale = 1.0;
+ GLfloat rBias = 0.0, gBias = 0.0, bBias = 0.0, aBias = 0.0;
+ GLenum tableType = CHAN_TYPE;
+ GLint comps;
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ texObj = texUnit->Current1D;
+ table = &texObj->Palette;
+ break;
+ case GL_TEXTURE_2D:
+ texObj = texUnit->Current2D;
+ table = &texObj->Palette;
+ break;
+ case GL_TEXTURE_3D:
+ texObj = texUnit->Current3D;
+ table = &texObj->Palette;
+ break;
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
+ return;
+ }
+ texObj = texUnit->CurrentCubeMap;
+ table = &texObj->Palette;
+ break;
+ case GL_PROXY_TEXTURE_1D:
+ texObj = ctx->Texture.Proxy1D;
+ table = &texObj->Palette;
+ proxy = GL_TRUE;
+ break;
+ case GL_PROXY_TEXTURE_2D:
+ texObj = ctx->Texture.Proxy2D;
+ table = &texObj->Palette;
+ proxy = GL_TRUE;
+ break;
+ case GL_PROXY_TEXTURE_3D:
+ texObj = ctx->Texture.Proxy3D;
+ table = &texObj->Palette;
+ proxy = GL_TRUE;
+ break;
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
+ return;
+ }
+ texObj = ctx->Texture.ProxyCubeMap;
+ table = &texObj->Palette;
+ break;
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ tableType = GL_FLOAT;
+ break;
+ case GL_COLOR_TABLE:
+ table = &ctx->ColorTable;
+ tableType = GL_FLOAT;
+ rScale = ctx->Pixel.ColorTableScale[0];
+ gScale = ctx->Pixel.ColorTableScale[1];
+ bScale = ctx->Pixel.ColorTableScale[2];
+ aScale = ctx->Pixel.ColorTableScale[3];
+ rBias = ctx->Pixel.ColorTableBias[0];
+ gBias = ctx->Pixel.ColorTableBias[1];
+ bBias = ctx->Pixel.ColorTableBias[2];
+ aBias = ctx->Pixel.ColorTableBias[3];
+ break;
+ case GL_PROXY_COLOR_TABLE:
+ table = &ctx->ProxyColorTable;
+ proxy = GL_TRUE;
+ break;
+ case GL_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
+ return;
+ }
+ table = &(texUnit->ColorTable);
+ tableType = GL_FLOAT;
+ rScale = ctx->Pixel.TextureColorTableScale[0];
+ gScale = ctx->Pixel.TextureColorTableScale[1];
+ bScale = ctx->Pixel.TextureColorTableScale[2];
+ aScale = ctx->Pixel.TextureColorTableScale[3];
+ rBias = ctx->Pixel.TextureColorTableBias[0];
+ gBias = ctx->Pixel.TextureColorTableBias[1];
+ bBias = ctx->Pixel.TextureColorTableBias[2];
+ aBias = ctx->Pixel.TextureColorTableBias[3];
+ break;
+ case GL_PROXY_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
+ return;
+ }
+ table = &(texUnit->ProxyColorTable);
+ tableType = GL_FLOAT;
+ proxy = GL_TRUE;
+ break;
+ case GL_POST_CONVOLUTION_COLOR_TABLE:
+ table = &ctx->PostConvolutionColorTable;
+ tableType = GL_FLOAT;
+ rScale = ctx->Pixel.PCCTscale[0];
+ gScale = ctx->Pixel.PCCTscale[1];
+ bScale = ctx->Pixel.PCCTscale[2];
+ aScale = ctx->Pixel.PCCTscale[3];
+ rBias = ctx->Pixel.PCCTbias[0];
+ gBias = ctx->Pixel.PCCTbias[1];
+ bBias = ctx->Pixel.PCCTbias[2];
+ aBias = ctx->Pixel.PCCTbias[3];
+ break;
+ case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
+ table = &ctx->ProxyPostConvolutionColorTable;
+ tableType = GL_FLOAT;
+ proxy = GL_TRUE;
+ break;
+ case GL_POST_COLOR_MATRIX_COLOR_TABLE:
+ table = &ctx->PostColorMatrixColorTable;
+ tableType = GL_FLOAT;
+ rScale = ctx->Pixel.PCMCTscale[0];
+ gScale = ctx->Pixel.PCMCTscale[1];
+ bScale = ctx->Pixel.PCMCTscale[2];
+ aScale = ctx->Pixel.PCMCTscale[3];
+ rBias = ctx->Pixel.PCMCTbias[0];
+ gBias = ctx->Pixel.PCMCTbias[1];
+ bBias = ctx->Pixel.PCMCTbias[2];
+ aBias = ctx->Pixel.PCMCTbias[3];
+ break;
+ case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
+ table = &ctx->ProxyPostColorMatrixColorTable;
+ tableType = GL_FLOAT;
+ proxy = GL_TRUE;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
+ return;
+ }
+
+ assert(table);
+
+ if (!_mesa_is_legal_format_and_type(ctx, format, type) ||
+ format == GL_INTENSITY) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glColorTable(format or type)");
+ return;
+ }
+
+ baseFormat = base_colortab_format(internalFormat);
+ if (baseFormat < 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(internalFormat)");
+ return;
+ }
+
+ if (width < 0 || (width != 0 && _mesa_bitcount(width) != 1)) {
+ /* error */
+ if (proxy) {
+ table->Size = 0;
+ table->InternalFormat = (GLenum) 0;
+ table->_BaseFormat = (GLenum) 0;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glColorTable(width=%d)", width);
+ }
+ return;
+ }
+
+ if (width > (GLsizei) ctx->Const.MaxColorTableSize) {
+ if (proxy) {
+ table->Size = 0;
+ table->InternalFormat = (GLenum) 0;
+ table->_BaseFormat = (GLenum) 0;
+ }
+ else {
+ _mesa_error(ctx, GL_TABLE_TOO_LARGE, "glColorTable(width)");
+ }
+ return;
+ }
+
+ table->Size = width;
+ table->InternalFormat = internalFormat;
+ table->_BaseFormat = (GLenum) baseFormat;
+ table->Type = (tableType == GL_FLOAT) ? GL_FLOAT : CHAN_TYPE;
+
+ comps = _mesa_components_in_format(table->_BaseFormat);
+ assert(comps > 0); /* error should have been caught sooner */
+
+ if (!proxy) {
+ /* free old table, if any */
+ if (table->Table) {
+ FREE(table->Table);
+ table->Table = NULL;
+ }
+
+ if (width > 0) {
+ if (table->Type == GL_FLOAT) {
+ table->Table = MALLOC(comps * width * sizeof(GLfloat));
+ }
+ else {
+ table->Table = MALLOC(comps * width * sizeof(GLchan));
+ }
+
+ if (!table->Table) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable");
+ return;
+ }
+
+ store_colortable_entries(ctx, table,
+ 0, width, /* start, count */
+ format, type, data,
+ rScale, rBias,
+ gScale, gBias,
+ bScale, bBias,
+ aScale, aBias);
+ }
+ } /* proxy */
+
+ /* do this after the table's Type and Format are set */
+ set_component_sizes(table);
+
+ if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) {
+ /* texture object palette, texObj==NULL means the shared palette */
+ if (ctx->Driver.UpdateTexturePalette) {
+ (*ctx->Driver.UpdateTexturePalette)( ctx, texObj );
+ }
+ }
+
+ ctx->NewState |= _NEW_PIXEL;
+}
+
+
+
+void GLAPIENTRY
+_mesa_ColorSubTable( GLenum target, GLsizei start,
+ GLsizei count, GLenum format, GLenum type,
+ const GLvoid *data )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj = NULL;
+ struct gl_color_table *table = NULL;
+ GLfloat rScale = 1.0, gScale = 1.0, bScale = 1.0, aScale = 1.0;
+ GLfloat rBias = 0.0, gBias = 0.0, bBias = 0.0, aBias = 0.0;
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ texObj = texUnit->Current1D;
+ table = &texObj->Palette;
+ break;
+ case GL_TEXTURE_2D:
+ texObj = texUnit->Current2D;
+ table = &texObj->Palette;
+ break;
+ case GL_TEXTURE_3D:
+ texObj = texUnit->Current3D;
+ table = &texObj->Palette;
+ break;
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)");
+ return;
+ }
+ texObj = texUnit->CurrentCubeMap;
+ table = &texObj->Palette;
+ break;
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ case GL_COLOR_TABLE:
+ table = &ctx->ColorTable;
+ rScale = ctx->Pixel.ColorTableScale[0];
+ gScale = ctx->Pixel.ColorTableScale[1];
+ bScale = ctx->Pixel.ColorTableScale[2];
+ aScale = ctx->Pixel.ColorTableScale[3];
+ rBias = ctx->Pixel.ColorTableBias[0];
+ gBias = ctx->Pixel.ColorTableBias[1];
+ bBias = ctx->Pixel.ColorTableBias[2];
+ aBias = ctx->Pixel.ColorTableBias[3];
+ break;
+ case GL_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)");
+ return;
+ }
+ table = &(texUnit->ColorTable);
+ rScale = ctx->Pixel.TextureColorTableScale[0];
+ gScale = ctx->Pixel.TextureColorTableScale[1];
+ bScale = ctx->Pixel.TextureColorTableScale[2];
+ aScale = ctx->Pixel.TextureColorTableScale[3];
+ rBias = ctx->Pixel.TextureColorTableBias[0];
+ gBias = ctx->Pixel.TextureColorTableBias[1];
+ bBias = ctx->Pixel.TextureColorTableBias[2];
+ aBias = ctx->Pixel.TextureColorTableBias[3];
+ break;
+ case GL_POST_CONVOLUTION_COLOR_TABLE:
+ table = &ctx->PostConvolutionColorTable;
+ rScale = ctx->Pixel.PCCTscale[0];
+ gScale = ctx->Pixel.PCCTscale[1];
+ bScale = ctx->Pixel.PCCTscale[2];
+ aScale = ctx->Pixel.PCCTscale[3];
+ rBias = ctx->Pixel.PCCTbias[0];
+ gBias = ctx->Pixel.PCCTbias[1];
+ bBias = ctx->Pixel.PCCTbias[2];
+ aBias = ctx->Pixel.PCCTbias[3];
+ break;
+ case GL_POST_COLOR_MATRIX_COLOR_TABLE:
+ table = &ctx->PostColorMatrixColorTable;
+ rScale = ctx->Pixel.PCMCTscale[0];
+ gScale = ctx->Pixel.PCMCTscale[1];
+ bScale = ctx->Pixel.PCMCTscale[2];
+ aScale = ctx->Pixel.PCMCTscale[3];
+ rBias = ctx->Pixel.PCMCTbias[0];
+ gBias = ctx->Pixel.PCMCTbias[1];
+ bBias = ctx->Pixel.PCMCTbias[2];
+ aBias = ctx->Pixel.PCMCTbias[3];
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)");
+ return;
+ }
+
+ assert(table);
+
+ if (!_mesa_is_legal_format_and_type(ctx, format, type) ||
+ format == GL_INTENSITY) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glColorSubTable(format or type)");
+ return;
+ }
+
+ if (count < 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)");
+ return;
+ }
+
+ /* error should have been caught sooner */
+ assert(_mesa_components_in_format(table->_BaseFormat) > 0);
+
+ if (start + count > (GLint) table->Size) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)");
+ return;
+ }
+
+ if (!table->Table) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorSubTable");
+ return;
+ }
+
+ store_colortable_entries(ctx, table, start, count,
+ format, type, data,
+ rScale, rBias,
+ gScale, gBias,
+ bScale, bBias,
+ aScale, aBias);
+
+ if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) {
+ /* per-texture object palette */
+ if (ctx->Driver.UpdateTexturePalette) {
+ (*ctx->Driver.UpdateTexturePalette)( ctx, texObj );
+ }
+ }
+
+ ctx->NewState |= _NEW_PIXEL;
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyColorTable(GLenum target, GLenum internalformat,
+ GLint x, GLint y, GLsizei width)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ /* Select buffer to read from */
+ ctx->Driver.CopyColorTable( ctx, target, internalformat, x, y, width );
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyColorSubTable(GLenum target, GLsizei start,
+ GLint x, GLint y, GLsizei width)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ ctx->Driver.CopyColorSubTable( ctx, target, start, x, y, width );
+}
+
+
+
+void GLAPIENTRY
+_mesa_GetColorTable( GLenum target, GLenum format,
+ GLenum type, GLvoid *data )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_color_table *table = NULL;
+ GLchan rgba[MAX_COLOR_TABLE_SIZE][4];
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ table = &texUnit->Current1D->Palette;
+ break;
+ case GL_TEXTURE_2D:
+ table = &texUnit->Current2D->Palette;
+ break;
+ case GL_TEXTURE_3D:
+ table = &texUnit->Current3D->Palette;
+ break;
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
+ return;
+ }
+ table = &texUnit->CurrentCubeMap->Palette;
+ break;
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ case GL_COLOR_TABLE:
+ table = &ctx->ColorTable;
+ break;
+ case GL_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
+ return;
+ }
+ table = &(texUnit->ColorTable);
+ break;
+ case GL_POST_CONVOLUTION_COLOR_TABLE:
+ table = &ctx->PostConvolutionColorTable;
+ break;
+ case GL_POST_COLOR_MATRIX_COLOR_TABLE:
+ table = &ctx->PostColorMatrixColorTable;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
+ return;
+ }
+
+ ASSERT(table);
+
+ switch (table->_BaseFormat) {
+ case GL_ALPHA:
+ if (table->Type == GL_FLOAT) {
+ const GLfloat *tableF = (const GLfloat *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = 0;
+ rgba[i][GCOMP] = 0;
+ rgba[i][BCOMP] = 0;
+#if CHAN_BITS==32
+ rgba[i][ACOMP] = tableF[i];
+#else
+ rgba[i][ACOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+#endif
+ }
+ }
+ else {
+ const GLchan *tableUB = (const GLchan *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = 0;
+ rgba[i][GCOMP] = 0;
+ rgba[i][BCOMP] = 0;
+ rgba[i][ACOMP] = tableUB[i];
+ }
+ }
+ break;
+ case GL_LUMINANCE:
+ if (table->Type == GL_FLOAT) {
+ const GLfloat *tableF = (const GLfloat *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+#if CHAN_BITS==32
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = tableF[i];
+ rgba[i][ACOMP] = CHAN_MAX;
+#else
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+ rgba[i][ACOMP] = CHAN_MAX;
+#endif
+ }
+ }
+ else {
+ const GLchan *tableUB = (const GLchan *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = tableUB[i];
+ rgba[i][ACOMP] = CHAN_MAX;
+ }
+ }
+ break;
+ case GL_LUMINANCE_ALPHA:
+ if (table->Type == GL_FLOAT) {
+ const GLfloat *tableF = (const GLfloat *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+#if CHAN_BITS==32
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = tableF[i*2+0];
+ rgba[i][ACOMP] = tableF[i*2+1];
+#else
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = IROUND_POS(tableF[i*2+0] * CHAN_MAXF);
+ rgba[i][ACOMP] = IROUND_POS(tableF[i*2+1] * CHAN_MAXF);
+#endif
+ }
+ }
+ else {
+ const GLchan *tableUB = (const GLchan *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = tableUB[i*2+0];
+ rgba[i][ACOMP] = tableUB[i*2+1];
+ }
+ }
+ break;
+ case GL_INTENSITY:
+ if (table->Type == GL_FLOAT) {
+ const GLfloat *tableF = (const GLfloat *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+#if CHAN_BITS==32
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] =
+ rgba[i][ACOMP] = tableF[i];
+#else
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] =
+ rgba[i][ACOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+#endif
+ }
+ }
+ else {
+ const GLchan *tableUB = (const GLchan *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] =
+ rgba[i][ACOMP] = tableUB[i];
+ }
+ }
+ break;
+ case GL_RGB:
+ if (table->Type == GL_FLOAT) {
+ const GLfloat *tableF = (const GLfloat *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+#if CHAN_BITS==32
+ rgba[i][RCOMP] = tableF[i*3+0];
+ rgba[i][GCOMP] = tableF[i*3+1];
+ rgba[i][BCOMP] = tableF[i*3+2];
+ rgba[i][ACOMP] = CHAN_MAX;
+#else
+ rgba[i][RCOMP] = IROUND_POS(tableF[i*3+0] * CHAN_MAXF);
+ rgba[i][GCOMP] = IROUND_POS(tableF[i*3+1] * CHAN_MAXF);
+ rgba[i][BCOMP] = IROUND_POS(tableF[i*3+2] * CHAN_MAXF);
+ rgba[i][ACOMP] = CHAN_MAX;
+#endif
+ }
+ }
+ else {
+ const GLchan *tableUB = (const GLchan *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = tableUB[i*3+0];
+ rgba[i][GCOMP] = tableUB[i*3+1];
+ rgba[i][BCOMP] = tableUB[i*3+2];
+ rgba[i][ACOMP] = CHAN_MAX;
+ }
+ }
+ break;
+ case GL_RGBA:
+ if (table->Type == GL_FLOAT) {
+ const GLfloat *tableF = (const GLfloat *) table->Table;
+#if CHAN_BITS==32
+ _mesa_memcpy(rgba, tableF, 4 * table->Size * sizeof(GLfloat));
+#else
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = IROUND_POS(tableF[i*4+0] * CHAN_MAXF);
+ rgba[i][GCOMP] = IROUND_POS(tableF[i*4+1] * CHAN_MAXF);
+ rgba[i][BCOMP] = IROUND_POS(tableF[i*4+2] * CHAN_MAXF);
+ rgba[i][ACOMP] = IROUND_POS(tableF[i*4+3] * CHAN_MAXF);
+ }
+#endif
+ }
+ else {
+ const GLchan *tableUB = (const GLchan *) table->Table;
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = tableUB[i*4+0];
+ rgba[i][GCOMP] = tableUB[i*4+1];
+ rgba[i][BCOMP] = tableUB[i*4+2];
+ rgba[i][ACOMP] = tableUB[i*4+3];
+ }
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "bad table format in glGetColorTable");
+ return;
+ }
+
+ if (ctx->Pack.BufferObj->Name) {
+ /* pack color table into PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(1, &ctx->Pack, table->Size, 1, 1,
+ format, type, data)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetColorTable(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,
+ "glGetColorTable(PBO is mapped)");
+ return;
+ }
+ data = ADD_POINTERS(buf, data);
+ }
+
+ _mesa_pack_rgba_span_chan(ctx, table->Size, (const GLchan (*)[4]) rgba,
+ format, type, data, &ctx->Pack, GL_FALSE);
+
+ if (ctx->Pack.BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ ctx->Pack.BufferObj);
+ }
+}
+
+
+
+void GLAPIENTRY
+_mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ switch (target) {
+ case GL_COLOR_TABLE_SGI:
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ ctx->Pixel.ColorTableScale[0] = params[0];
+ ctx->Pixel.ColorTableScale[1] = params[1];
+ ctx->Pixel.ColorTableScale[2] = params[2];
+ ctx->Pixel.ColorTableScale[3] = params[3];
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ ctx->Pixel.ColorTableBias[0] = params[0];
+ ctx->Pixel.ColorTableBias[1] = params[1];
+ ctx->Pixel.ColorTableBias[2] = params[2];
+ ctx->Pixel.ColorTableBias[3] = params[3];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
+ return;
+ }
+ break;
+ case GL_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameter(target)");
+ return;
+ }
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ ctx->Pixel.TextureColorTableScale[0] = params[0];
+ ctx->Pixel.TextureColorTableScale[1] = params[1];
+ ctx->Pixel.TextureColorTableScale[2] = params[2];
+ ctx->Pixel.TextureColorTableScale[3] = params[3];
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ ctx->Pixel.TextureColorTableBias[0] = params[0];
+ ctx->Pixel.TextureColorTableBias[1] = params[1];
+ ctx->Pixel.TextureColorTableBias[2] = params[2];
+ ctx->Pixel.TextureColorTableBias[3] = params[3];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
+ return;
+ }
+ break;
+ case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ ctx->Pixel.PCCTscale[0] = params[0];
+ ctx->Pixel.PCCTscale[1] = params[1];
+ ctx->Pixel.PCCTscale[2] = params[2];
+ ctx->Pixel.PCCTscale[3] = params[3];
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ ctx->Pixel.PCCTbias[0] = params[0];
+ ctx->Pixel.PCCTbias[1] = params[1];
+ ctx->Pixel.PCCTbias[2] = params[2];
+ ctx->Pixel.PCCTbias[3] = params[3];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
+ return;
+ }
+ break;
+ case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ ctx->Pixel.PCMCTscale[0] = params[0];
+ ctx->Pixel.PCMCTscale[1] = params[1];
+ ctx->Pixel.PCMCTscale[2] = params[2];
+ ctx->Pixel.PCMCTscale[3] = params[3];
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ ctx->Pixel.PCMCTbias[0] = params[0];
+ ctx->Pixel.PCMCTbias[1] = params[1];
+ ctx->Pixel.PCMCTbias[2] = params[2];
+ ctx->Pixel.PCMCTbias[3] = params[3];
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)");
+ return;
+ }
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameter(target)");
+ return;
+ }
+
+ ctx->NewState |= _NEW_PIXEL;
+}
+
+
+
+void GLAPIENTRY
+_mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params)
+{
+ GLfloat fparams[4];
+ if (pname == GL_COLOR_TABLE_SGI ||
+ pname == GL_TEXTURE_COLOR_TABLE_SGI ||
+ pname == GL_POST_CONVOLUTION_COLOR_TABLE_SGI ||
+ pname == GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI) {
+ /* four values */
+ fparams[0] = (GLfloat) params[0];
+ fparams[1] = (GLfloat) params[1];
+ fparams[2] = (GLfloat) params[2];
+ fparams[3] = (GLfloat) params[3];
+ }
+ else {
+ /* one values */
+ fparams[0] = (GLfloat) params[0];
+ }
+ _mesa_ColorTableParameterfv(target, pname, fparams);
+}
+
+
+
+void GLAPIENTRY
+_mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_color_table *table = NULL;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ table = &texUnit->Current1D->Palette;
+ break;
+ case GL_TEXTURE_2D:
+ table = &texUnit->Current2D->Palette;
+ break;
+ case GL_TEXTURE_3D:
+ table = &texUnit->Current3D->Palette;
+ break;
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetColorTableParameterfv(target)");
+ return;
+ }
+ table = &texUnit->CurrentCubeMap->Palette;
+ break;
+ case GL_PROXY_TEXTURE_1D:
+ table = &ctx->Texture.Proxy1D->Palette;
+ break;
+ case GL_PROXY_TEXTURE_2D:
+ table = &ctx->Texture.Proxy2D->Palette;
+ break;
+ case GL_PROXY_TEXTURE_3D:
+ table = &ctx->Texture.Proxy3D->Palette;
+ break;
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetColorTableParameterfv(target)");
+ return;
+ }
+ table = &ctx->Texture.ProxyCubeMap->Palette;
+ break;
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ case GL_COLOR_TABLE:
+ table = &ctx->ColorTable;
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ params[0] = ctx->Pixel.ColorTableScale[0];
+ params[1] = ctx->Pixel.ColorTableScale[1];
+ params[2] = ctx->Pixel.ColorTableScale[2];
+ params[3] = ctx->Pixel.ColorTableScale[3];
+ return;
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ params[0] = ctx->Pixel.ColorTableBias[0];
+ params[1] = ctx->Pixel.ColorTableBias[1];
+ params[2] = ctx->Pixel.ColorTableBias[2];
+ params[3] = ctx->Pixel.ColorTableBias[3];
+ return;
+ }
+ break;
+ case GL_PROXY_COLOR_TABLE:
+ table = &ctx->ProxyColorTable;
+ break;
+ case GL_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)");
+ return;
+ }
+ table = &(texUnit->ColorTable);
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ params[0] = ctx->Pixel.TextureColorTableScale[0];
+ params[1] = ctx->Pixel.TextureColorTableScale[1];
+ params[2] = ctx->Pixel.TextureColorTableScale[2];
+ params[3] = ctx->Pixel.TextureColorTableScale[3];
+ return;
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ params[0] = ctx->Pixel.TextureColorTableBias[0];
+ params[1] = ctx->Pixel.TextureColorTableBias[1];
+ params[2] = ctx->Pixel.TextureColorTableBias[2];
+ params[3] = ctx->Pixel.TextureColorTableBias[3];
+ return;
+ }
+ break;
+ case GL_PROXY_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)");
+ return;
+ }
+ table = &(texUnit->ProxyColorTable);
+ break;
+ case GL_POST_CONVOLUTION_COLOR_TABLE:
+ table = &ctx->PostConvolutionColorTable;
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ params[0] = ctx->Pixel.PCCTscale[0];
+ params[1] = ctx->Pixel.PCCTscale[1];
+ params[2] = ctx->Pixel.PCCTscale[2];
+ params[3] = ctx->Pixel.PCCTscale[3];
+ return;
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ params[0] = ctx->Pixel.PCCTbias[0];
+ params[1] = ctx->Pixel.PCCTbias[1];
+ params[2] = ctx->Pixel.PCCTbias[2];
+ params[3] = ctx->Pixel.PCCTbias[3];
+ return;
+ }
+ break;
+ case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
+ table = &ctx->ProxyPostConvolutionColorTable;
+ break;
+ case GL_POST_COLOR_MATRIX_COLOR_TABLE:
+ table = &ctx->PostColorMatrixColorTable;
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ params[0] = ctx->Pixel.PCMCTscale[0];
+ params[1] = ctx->Pixel.PCMCTscale[1];
+ params[2] = ctx->Pixel.PCMCTscale[2];
+ params[3] = ctx->Pixel.PCMCTscale[3];
+ return;
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ params[0] = ctx->Pixel.PCMCTbias[0];
+ params[1] = ctx->Pixel.PCMCTbias[1];
+ params[2] = ctx->Pixel.PCMCTbias[2];
+ params[3] = ctx->Pixel.PCMCTbias[3];
+ return;
+ }
+ break;
+ case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
+ table = &ctx->ProxyPostColorMatrixColorTable;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameterfv(target)");
+ return;
+ }
+
+ assert(table);
+
+ switch (pname) {
+ case GL_COLOR_TABLE_FORMAT:
+ *params = (GLfloat) table->InternalFormat;
+ break;
+ case GL_COLOR_TABLE_WIDTH:
+ *params = (GLfloat) table->Size;
+ break;
+ case GL_COLOR_TABLE_RED_SIZE:
+ *params = (GLfloat) table->RedSize;
+ break;
+ case GL_COLOR_TABLE_GREEN_SIZE:
+ *params = (GLfloat) table->GreenSize;
+ break;
+ case GL_COLOR_TABLE_BLUE_SIZE:
+ *params = (GLfloat) table->BlueSize;
+ break;
+ case GL_COLOR_TABLE_ALPHA_SIZE:
+ *params = (GLfloat) table->AlphaSize;
+ break;
+ case GL_COLOR_TABLE_LUMINANCE_SIZE:
+ *params = (GLfloat) table->LuminanceSize;
+ break;
+ case GL_COLOR_TABLE_INTENSITY_SIZE:
+ *params = (GLfloat) table->IntensitySize;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameterfv(pname)" );
+ return;
+ }
+}
+
+
+
+void GLAPIENTRY
+_mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_color_table *table = NULL;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ table = &texUnit->Current1D->Palette;
+ break;
+ case GL_TEXTURE_2D:
+ table = &texUnit->Current2D->Palette;
+ break;
+ case GL_TEXTURE_3D:
+ table = &texUnit->Current3D->Palette;
+ break;
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetColorTableParameteriv(target)");
+ return;
+ }
+ table = &texUnit->CurrentCubeMap->Palette;
+ break;
+ case GL_PROXY_TEXTURE_1D:
+ table = &ctx->Texture.Proxy1D->Palette;
+ break;
+ case GL_PROXY_TEXTURE_2D:
+ table = &ctx->Texture.Proxy2D->Palette;
+ break;
+ case GL_PROXY_TEXTURE_3D:
+ table = &ctx->Texture.Proxy3D->Palette;
+ break;
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetColorTableParameteriv(target)");
+ return;
+ }
+ table = &ctx->Texture.ProxyCubeMap->Palette;
+ break;
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ case GL_COLOR_TABLE:
+ table = &ctx->ColorTable;
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ params[0] = (GLint) ctx->Pixel.ColorTableScale[0];
+ params[1] = (GLint) ctx->Pixel.ColorTableScale[1];
+ params[2] = (GLint) ctx->Pixel.ColorTableScale[2];
+ params[3] = (GLint) ctx->Pixel.ColorTableScale[3];
+ return;
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ params[0] = (GLint) ctx->Pixel.ColorTableBias[0];
+ params[1] = (GLint) ctx->Pixel.ColorTableBias[1];
+ params[2] = (GLint) ctx->Pixel.ColorTableBias[2];
+ params[3] = (GLint) ctx->Pixel.ColorTableBias[3];
+ return;
+ }
+ break;
+ case GL_PROXY_COLOR_TABLE:
+ table = &ctx->ProxyColorTable;
+ break;
+ case GL_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)");
+ return;
+ }
+ table = &(texUnit->ColorTable);
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ params[0] = (GLint) ctx->Pixel.TextureColorTableScale[0];
+ params[1] = (GLint) ctx->Pixel.TextureColorTableScale[1];
+ params[2] = (GLint) ctx->Pixel.TextureColorTableScale[2];
+ params[3] = (GLint) ctx->Pixel.TextureColorTableScale[3];
+ return;
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ params[0] = (GLint) ctx->Pixel.TextureColorTableBias[0];
+ params[1] = (GLint) ctx->Pixel.TextureColorTableBias[1];
+ params[2] = (GLint) ctx->Pixel.TextureColorTableBias[2];
+ params[3] = (GLint) ctx->Pixel.TextureColorTableBias[3];
+ return;
+ }
+ break;
+ case GL_PROXY_TEXTURE_COLOR_TABLE_SGI:
+ if (!ctx->Extensions.SGI_texture_color_table) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)");
+ return;
+ }
+ table = &(texUnit->ProxyColorTable);
+ break;
+ case GL_POST_CONVOLUTION_COLOR_TABLE:
+ table = &ctx->PostConvolutionColorTable;
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ params[0] = (GLint) ctx->Pixel.PCCTscale[0];
+ params[1] = (GLint) ctx->Pixel.PCCTscale[1];
+ params[2] = (GLint) ctx->Pixel.PCCTscale[2];
+ params[3] = (GLint) ctx->Pixel.PCCTscale[3];
+ return;
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ params[0] = (GLint) ctx->Pixel.PCCTbias[0];
+ params[1] = (GLint) ctx->Pixel.PCCTbias[1];
+ params[2] = (GLint) ctx->Pixel.PCCTbias[2];
+ params[3] = (GLint) ctx->Pixel.PCCTbias[3];
+ return;
+ }
+ break;
+ case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
+ table = &ctx->ProxyPostConvolutionColorTable;
+ break;
+ case GL_POST_COLOR_MATRIX_COLOR_TABLE:
+ table = &ctx->PostColorMatrixColorTable;
+ if (pname == GL_COLOR_TABLE_SCALE_SGI) {
+ params[0] = (GLint) ctx->Pixel.PCMCTscale[0];
+ params[1] = (GLint) ctx->Pixel.PCMCTscale[1];
+ params[2] = (GLint) ctx->Pixel.PCMCTscale[2];
+ params[3] = (GLint) ctx->Pixel.PCMCTscale[3];
+ return;
+ }
+ else if (pname == GL_COLOR_TABLE_BIAS_SGI) {
+ params[0] = (GLint) ctx->Pixel.PCMCTbias[0];
+ params[1] = (GLint) ctx->Pixel.PCMCTbias[1];
+ params[2] = (GLint) ctx->Pixel.PCMCTbias[2];
+ params[3] = (GLint) ctx->Pixel.PCMCTbias[3];
+ return;
+ }
+ break;
+ case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
+ table = &ctx->ProxyPostColorMatrixColorTable;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameteriv(target)");
+ return;
+ }
+
+ assert(table);
+
+ switch (pname) {
+ case GL_COLOR_TABLE_FORMAT:
+ *params = table->InternalFormat;
+ break;
+ case GL_COLOR_TABLE_WIDTH:
+ *params = table->Size;
+ break;
+ case GL_COLOR_TABLE_RED_SIZE:
+ *params = table->RedSize;
+ break;
+ case GL_COLOR_TABLE_GREEN_SIZE:
+ *params = table->GreenSize;
+ break;
+ case GL_COLOR_TABLE_BLUE_SIZE:
+ *params = table->BlueSize;
+ break;
+ case GL_COLOR_TABLE_ALPHA_SIZE:
+ *params = table->AlphaSize;
+ break;
+ case GL_COLOR_TABLE_LUMINANCE_SIZE:
+ *params = table->LuminanceSize;
+ break;
+ case GL_COLOR_TABLE_INTENSITY_SIZE:
+ *params = table->IntensitySize;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameteriv(pname)" );
+ return;
+ }
+}
+
+/**********************************************************************/
+/***** Initialization *****/
+/**********************************************************************/
+
+
+void
+_mesa_init_colortable( struct gl_color_table *p )
+{
+ p->Type = CHAN_TYPE;
+ p->Table = NULL;
+ p->Size = 0;
+ p->InternalFormat = GL_RGBA;
+}
+
+
+
+void
+_mesa_free_colortable_data( struct gl_color_table *p )
+{
+ if (p->Table) {
+ FREE(p->Table);
+ p->Table = NULL;
+ }
+}
+
+
+/*
+ * Initialize all colortables for a context.
+ */
+void _mesa_init_colortables( GLcontext * ctx )
+{
+ /* Color tables */
+ _mesa_init_colortable(&ctx->ColorTable);
+ _mesa_init_colortable(&ctx->ProxyColorTable);
+ _mesa_init_colortable(&ctx->PostConvolutionColorTable);
+ _mesa_init_colortable(&ctx->ProxyPostConvolutionColorTable);
+ _mesa_init_colortable(&ctx->PostColorMatrixColorTable);
+ _mesa_init_colortable(&ctx->ProxyPostColorMatrixColorTable);
+}
+
+
+/*
+ * Free all colortable data for a context
+ */
+void _mesa_free_colortables_data( GLcontext *ctx )
+{
+ _mesa_free_colortable_data(&ctx->ColorTable);
+ _mesa_free_colortable_data(&ctx->ProxyColorTable);
+ _mesa_free_colortable_data(&ctx->PostConvolutionColorTable);
+ _mesa_free_colortable_data(&ctx->ProxyPostConvolutionColorTable);
+ _mesa_free_colortable_data(&ctx->PostColorMatrixColorTable);
+ _mesa_free_colortable_data(&ctx->ProxyPostColorMatrixColorTable);
+}