0,0 → 1,932 |
/* |
* 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 "pack.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; |
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); |
scale = ctx->Pixel.TextureColorTableScale; |
bias = ctx->Pixel.TextureColorTableBias; |
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); |
proxy = GL_TRUE; |
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; |
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); |
scale = ctx->Pixel.TextureColorTableScale; |
bias = ctx->Pixel.TextureColorTableBias; |
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; |
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; |
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) |
{ |
GLfloat *scale, *bias; |
GET_CURRENT_CONTEXT(ctx); |
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); |
|
switch (target) { |
case GL_TEXTURE_COLOR_TABLE_SGI: |
scale = ctx->Pixel.TextureColorTableScale; |
bias = ctx->Pixel.TextureColorTableBias; |
break; |
default: |
_mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameter(target)"); |
return; |
} |
|
if (pname == GL_COLOR_TABLE_SCALE_SGI) { |
COPY_4V(scale, params); |
} |
else if (pname == GL_COLOR_TABLE_BIAS_SGI) { |
COPY_4V(bias, params); |
} |
else { |
_mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)"); |
return; |
} |
|
ctx->NewState |= _NEW_PIXEL; |
} |
|
|
|
static void GLAPIENTRY |
_mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params) |
{ |
GLfloat fparams[4]; |
if (pname == GL_TEXTURE_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); |
} |
|
|
|
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; |
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) { |
COPY_4V(params, ctx->Pixel.TextureColorTableScale); |
return; |
} |
else if (pname == GL_COLOR_TABLE_BIAS_SGI) { |
COPY_4V(params, ctx->Pixel.TextureColorTableBias); |
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; |
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; |
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; |
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; |
} |
} |