diff options
Diffstat (limited to 'mesalib/src/mesa/main/colortab.c')
-rw-r--r-- | mesalib/src/mesa/main/colortab.c | 1642 |
1 files changed, 821 insertions, 821 deletions
diff --git a/mesalib/src/mesa/main/colortab.c b/mesalib/src/mesa/main/colortab.c index d0c865735..48318248e 100644 --- a/mesalib/src/mesa/main/colortab.c +++ b/mesalib/src/mesa/main/colortab.c @@ -1,821 +1,821 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 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 "mfeatures.h" -#include "mtypes.h" -#include "pack.h" -#include "pbo.h" -#include "state.h" -#include "teximage.h" -#include "texstate.h" -#include "main/dispatch.h" - - -#if FEATURE_colortable - - -/** - * 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 ) -{ - /* assuming the ubyte table */ - const GLubyte sz = 8; - - 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(struct gl_context *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) -{ - data = _mesa_map_validate_pbo_source(ctx, - 1, &ctx->Unpack, count, 1, 1, - format, type, data, - "glColor[Sub]Table"); - if (!data) - return; - - { - /* 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 = table->TableF; - - /* 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; - } - } - - /* update the ubyte table */ - { - const GLint comps = _mesa_components_in_format(table->_BaseFormat); - const GLfloat *tableF = table->TableF + start * comps; - GLubyte *tableUB = table->TableUB + start * comps; - GLint i; - for (i = 0; i < count * comps; i++) { - CLAMPED_FLOAT_TO_UBYTE(tableUB[i], tableF[i]); - } - } - - _mesa_unmap_pbo_source(ctx, &ctx->Unpack); -} - - - -void GLAPIENTRY -_mesa_ColorTable( GLenum target, GLenum internalFormat, - GLsizei width, GLenum format, GLenum type, - const GLvoid *data ) -{ - static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 }; - static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 }; - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_texture_object *texObj = NULL; - struct gl_color_table *table = NULL; - GLboolean proxy = GL_FALSE; - GLint baseFormat; - const GLfloat *scale = one, *bias = zero; - GLint comps; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */ - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* try texture targets */ - { - struct gl_texture_object *texobj - = _mesa_select_tex_object(ctx, texUnit, target); - if (texobj) { - table = &texobj->Palette; - proxy = _mesa_is_proxy_texture(target); - } - else { - _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_is_pow_two(width))) { - /* 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; - - comps = _mesa_components_in_format(table->_BaseFormat); - assert(comps > 0); /* error should have been caught sooner */ - - if (!proxy) { - _mesa_free_colortable_data(table); - - if (width > 0) { - table->TableF = (GLfloat *) malloc(comps * width * sizeof(GLfloat)); - table->TableUB = (GLubyte *) malloc(comps * width * sizeof(GLubyte)); - - if (!table->TableF || !table->TableUB) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable"); - return; - } - - store_colortable_entries(ctx, table, - 0, width, /* start, count */ - format, type, data, - scale[0], bias[0], - scale[1], bias[1], - scale[2], bias[2], - scale[3], bias[3]); - } - } /* 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 ) -{ - static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 }; - static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 }; - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_texture_object *texObj = NULL; - struct gl_color_table *table = NULL; - const GLfloat *scale = one, *bias = zero; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* try texture targets */ - texObj = _mesa_select_tex_object(ctx, texUnit, target); - if (texObj && !_mesa_is_proxy_texture(target)) { - table = &texObj->Palette; - } - else { - _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->TableF || !table->TableUB) { - /* a GL_OUT_OF_MEMORY error would have been recorded previously */ - return; - } - - store_colortable_entries(ctx, table, start, count, - format, type, data, - scale[0], bias[0], - scale[1], bias[1], - scale[2], bias[2], - scale[3], bias[3]); - - 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; -} - - - -static 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); - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - return; /* no readbuffer - OK */ - } - - ctx->Driver.CopyColorTable( ctx, target, internalformat, x, y, width ); -} - - - -static 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); - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - return; /* no readbuffer - OK */ - } - - ctx->Driver.CopyColorSubTable( ctx, target, start, x, y, width ); -} - - - -static void GLAPIENTRY -_mesa_GetColorTable( GLenum target, GLenum format, - GLenum type, GLvoid *data ) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_color_table *table = NULL; - GLfloat rgba[MAX_COLOR_TABLE_SIZE][4]; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (ctx->NewState) { - _mesa_update_state(ctx); - } - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* try texture targets */ - { - struct gl_texture_object *texobj - = _mesa_select_tex_object(ctx, texUnit, target); - if (texobj && !_mesa_is_proxy_texture(target)) { - table = &texobj->Palette; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)"); - return; - } - } - } - - ASSERT(table); - - if (table->Size <= 0) { - return; - } - - switch (table->_BaseFormat) { - case GL_ALPHA: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = 0; - rgba[i][GCOMP] = 0; - rgba[i][BCOMP] = 0; - rgba[i][ACOMP] = table->TableF[i]; - } - } - break; - case GL_LUMINANCE: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = - rgba[i][GCOMP] = - rgba[i][BCOMP] = table->TableF[i]; - rgba[i][ACOMP] = 1.0F; - } - } - break; - case GL_LUMINANCE_ALPHA: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = - rgba[i][GCOMP] = - rgba[i][BCOMP] = table->TableF[i*2+0]; - rgba[i][ACOMP] = table->TableF[i*2+1]; - } - } - break; - case GL_INTENSITY: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = - rgba[i][GCOMP] = - rgba[i][BCOMP] = - rgba[i][ACOMP] = table->TableF[i]; - } - } - break; - case GL_RGB: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = table->TableF[i*3+0]; - rgba[i][GCOMP] = table->TableF[i*3+1]; - rgba[i][BCOMP] = table->TableF[i*3+2]; - rgba[i][ACOMP] = 1.0F; - } - } - break; - case GL_RGBA: - memcpy(rgba, table->TableF, 4 * table->Size * sizeof(GLfloat)); - break; - default: - _mesa_problem(ctx, "bad table format in glGetColorTable"); - return; - } - - data = _mesa_map_validate_pbo_dest(ctx, - 1, &ctx->Pack, table->Size, 1, 1, - format, type, data, - "glGetColorTable"); - if (!data) - return; - - _mesa_pack_rgba_span_float(ctx, table->Size, rgba, - format, type, data, &ctx->Pack, 0x0); - - _mesa_unmap_pbo_dest(ctx, &ctx->Pack); -} - - - -static void GLAPIENTRY -_mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params) -{ - /* no extensions use this function */ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(target)"); -} - - - -static void GLAPIENTRY -_mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params) -{ - /* no extensions use this function */ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameteriv(target)"); -} - - - -static void GLAPIENTRY -_mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params ) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_color_table *table = NULL; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* try texture targets */ - { - struct gl_texture_object *texobj - = _mesa_select_tex_object(ctx, texUnit, target); - if (texobj) { - table = &texobj->Palette; - } - else { - _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; - } -} - - - -static void GLAPIENTRY -_mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params ) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_color_table *table = NULL; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* Try texture targets */ - { - struct gl_texture_object *texobj - = _mesa_select_tex_object(ctx, texUnit, target); - if (texobj) { - table = &texobj->Palette; - } - else { - _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; - } -} - - -void -_mesa_init_colortable_dispatch(struct _glapi_table *disp) -{ - SET_ColorSubTable(disp, _mesa_ColorSubTable); - SET_ColorTable(disp, _mesa_ColorTable); - SET_ColorTableParameterfv(disp, _mesa_ColorTableParameterfv); - SET_ColorTableParameteriv(disp, _mesa_ColorTableParameteriv); - SET_CopyColorSubTable(disp, _mesa_CopyColorSubTable); - SET_CopyColorTable(disp, _mesa_CopyColorTable); - SET_GetColorTable(disp, _mesa_GetColorTable); - SET_GetColorTableParameterfv(disp, _mesa_GetColorTableParameterfv); - SET_GetColorTableParameteriv(disp, _mesa_GetColorTableParameteriv); -} - - -#endif /* FEATURE_colortable */ - - -/**********************************************************************/ -/***** Initialization *****/ -/**********************************************************************/ - - -void -_mesa_init_colortable( struct gl_color_table *p ) -{ - p->TableF = NULL; - p->TableUB = NULL; - p->Size = 0; - p->InternalFormat = GL_RGBA; -} - - - -void -_mesa_free_colortable_data( struct gl_color_table *p ) -{ - if (p->TableF) { - free(p->TableF); - p->TableF = NULL; - } - if (p->TableUB) { - free(p->TableUB); - p->TableUB = NULL; - } -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 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 "mfeatures.h"
+#include "mtypes.h"
+#include "pack.h"
+#include "pbo.h"
+#include "state.h"
+#include "teximage.h"
+#include "texstate.h"
+#include "main/dispatch.h"
+
+
+#if FEATURE_colortable
+
+
+/**
+ * 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 )
+{
+ /* assuming the ubyte table */
+ const GLubyte sz = 8;
+
+ 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(struct gl_context *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)
+{
+ data = _mesa_map_validate_pbo_source(ctx,
+ 1, &ctx->Unpack, count, 1, 1,
+ format, type, data,
+ "glColor[Sub]Table");
+ if (!data)
+ return;
+
+ {
+ /* 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 = table->TableF;
+
+ /* 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;
+ }
+ }
+
+ /* update the ubyte table */
+ {
+ const GLint comps = _mesa_components_in_format(table->_BaseFormat);
+ const GLfloat *tableF = table->TableF + start * comps;
+ GLubyte *tableUB = table->TableUB + start * comps;
+ GLint i;
+ for (i = 0; i < count * comps; i++) {
+ CLAMPED_FLOAT_TO_UBYTE(tableUB[i], tableF[i]);
+ }
+ }
+
+ _mesa_unmap_pbo_source(ctx, &ctx->Unpack);
+}
+
+
+
+void GLAPIENTRY
+_mesa_ColorTable( GLenum target, GLenum internalFormat,
+ GLsizei width, GLenum format, GLenum type,
+ const GLvoid *data )
+{
+ static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 };
+ static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 };
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_texture_object *texObj = NULL;
+ struct gl_color_table *table = NULL;
+ GLboolean proxy = GL_FALSE;
+ GLint baseFormat;
+ const GLfloat *scale = one, *bias = zero;
+ GLint comps;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* try texture targets */
+ {
+ struct gl_texture_object *texobj
+ = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texobj) {
+ table = &texobj->Palette;
+ proxy = _mesa_is_proxy_texture(target);
+ }
+ else {
+ _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_is_pow_two(width))) {
+ /* 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;
+
+ comps = _mesa_components_in_format(table->_BaseFormat);
+ assert(comps > 0); /* error should have been caught sooner */
+
+ if (!proxy) {
+ _mesa_free_colortable_data(table);
+
+ if (width > 0) {
+ table->TableF = (GLfloat *) malloc(comps * width * sizeof(GLfloat));
+ table->TableUB = (GLubyte *) malloc(comps * width * sizeof(GLubyte));
+
+ if (!table->TableF || !table->TableUB) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable");
+ return;
+ }
+
+ store_colortable_entries(ctx, table,
+ 0, width, /* start, count */
+ format, type, data,
+ scale[0], bias[0],
+ scale[1], bias[1],
+ scale[2], bias[2],
+ scale[3], bias[3]);
+ }
+ } /* 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 )
+{
+ static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 };
+ static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 };
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_texture_object *texObj = NULL;
+ struct gl_color_table *table = NULL;
+ const GLfloat *scale = one, *bias = zero;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* try texture targets */
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texObj && !_mesa_is_proxy_texture(target)) {
+ table = &texObj->Palette;
+ }
+ else {
+ _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->TableF || !table->TableUB) {
+ /* a GL_OUT_OF_MEMORY error would have been recorded previously */
+ return;
+ }
+
+ store_colortable_entries(ctx, table, start, count,
+ format, type, data,
+ scale[0], bias[0],
+ scale[1], bias[1],
+ scale[2], bias[2],
+ scale[3], bias[3]);
+
+ 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;
+}
+
+
+
+static 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);
+
+ if (!ctx->ReadBuffer->_ColorReadBuffer) {
+ return; /* no readbuffer - OK */
+ }
+
+ ctx->Driver.CopyColorTable( ctx, target, internalformat, x, y, width );
+}
+
+
+
+static 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);
+
+ if (!ctx->ReadBuffer->_ColorReadBuffer) {
+ return; /* no readbuffer - OK */
+ }
+
+ ctx->Driver.CopyColorSubTable( ctx, target, start, x, y, width );
+}
+
+
+
+static void GLAPIENTRY
+_mesa_GetColorTable( GLenum target, GLenum format,
+ GLenum type, GLvoid *data )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_color_table *table = NULL;
+ GLfloat rgba[MAX_COLOR_TABLE_SIZE][4];
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* try texture targets */
+ {
+ struct gl_texture_object *texobj
+ = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texobj && !_mesa_is_proxy_texture(target)) {
+ table = &texobj->Palette;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
+ return;
+ }
+ }
+ }
+
+ ASSERT(table);
+
+ if (table->Size <= 0) {
+ return;
+ }
+
+ switch (table->_BaseFormat) {
+ case GL_ALPHA:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = 0;
+ rgba[i][GCOMP] = 0;
+ rgba[i][BCOMP] = 0;
+ rgba[i][ACOMP] = table->TableF[i];
+ }
+ }
+ break;
+ case GL_LUMINANCE:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = table->TableF[i];
+ rgba[i][ACOMP] = 1.0F;
+ }
+ }
+ break;
+ case GL_LUMINANCE_ALPHA:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = table->TableF[i*2+0];
+ rgba[i][ACOMP] = table->TableF[i*2+1];
+ }
+ }
+ break;
+ case GL_INTENSITY:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] =
+ rgba[i][ACOMP] = table->TableF[i];
+ }
+ }
+ break;
+ case GL_RGB:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = table->TableF[i*3+0];
+ rgba[i][GCOMP] = table->TableF[i*3+1];
+ rgba[i][BCOMP] = table->TableF[i*3+2];
+ rgba[i][ACOMP] = 1.0F;
+ }
+ }
+ break;
+ case GL_RGBA:
+ memcpy(rgba, table->TableF, 4 * table->Size * sizeof(GLfloat));
+ break;
+ default:
+ _mesa_problem(ctx, "bad table format in glGetColorTable");
+ return;
+ }
+
+ data = _mesa_map_validate_pbo_dest(ctx,
+ 1, &ctx->Pack, table->Size, 1, 1,
+ format, type, data,
+ "glGetColorTable");
+ if (!data)
+ return;
+
+ _mesa_pack_rgba_span_float(ctx, table->Size, rgba,
+ format, type, data, &ctx->Pack, 0x0);
+
+ _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
+}
+
+
+
+static void GLAPIENTRY
+_mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params)
+{
+ /* no extensions use this function */
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(target)");
+}
+
+
+
+static void GLAPIENTRY
+_mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params)
+{
+ /* no extensions use this function */
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameteriv(target)");
+}
+
+
+
+static void GLAPIENTRY
+_mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_color_table *table = NULL;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* try texture targets */
+ {
+ struct gl_texture_object *texobj
+ = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texobj) {
+ table = &texobj->Palette;
+ }
+ else {
+ _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;
+ }
+}
+
+
+
+static void GLAPIENTRY
+_mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_color_table *table = NULL;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* Try texture targets */
+ {
+ struct gl_texture_object *texobj
+ = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texobj) {
+ table = &texobj->Palette;
+ }
+ else {
+ _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;
+ }
+}
+
+
+void
+_mesa_init_colortable_dispatch(struct _glapi_table *disp)
+{
+ SET_ColorSubTable(disp, _mesa_ColorSubTable);
+ SET_ColorTable(disp, _mesa_ColorTable);
+ SET_ColorTableParameterfv(disp, _mesa_ColorTableParameterfv);
+ SET_ColorTableParameteriv(disp, _mesa_ColorTableParameteriv);
+ SET_CopyColorSubTable(disp, _mesa_CopyColorSubTable);
+ SET_CopyColorTable(disp, _mesa_CopyColorTable);
+ SET_GetColorTable(disp, _mesa_GetColorTable);
+ SET_GetColorTableParameterfv(disp, _mesa_GetColorTableParameterfv);
+ SET_GetColorTableParameteriv(disp, _mesa_GetColorTableParameteriv);
+}
+
+
+#endif /* FEATURE_colortable */
+
+
+/**********************************************************************/
+/***** Initialization *****/
+/**********************************************************************/
+
+
+void
+_mesa_init_colortable( struct gl_color_table *p )
+{
+ p->TableF = NULL;
+ p->TableUB = NULL;
+ p->Size = 0;
+ p->InternalFormat = GL_RGBA;
+}
+
+
+
+void
+_mesa_free_colortable_data( struct gl_color_table *p )
+{
+ if (p->TableF) {
+ free(p->TableF);
+ p->TableF = NULL;
+ }
+ if (p->TableUB) {
+ free(p->TableUB);
+ p->TableUB = NULL;
+ }
+}
|