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|
/*
* Mesa 3-D graphics library
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (c) 2008-2009 VMware, Inc.
*
* 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
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file texformat.c
* Texture formats.
*
* \author Gareth Hughes
* \author Brian Paul
*/
#include "context.h"
#include "enums.h"
#include "mtypes.h"
#include "texcompress.h"
#include "texformat.h"
#define RETURN_IF_SUPPORTED(f) do { \
if (ctx->TextureFormatSupported[f]) \
return f; \
} while (0)
/**
* Choose an appropriate texture format given the format, type and
* internalFormat parameters passed to glTexImage().
*
* \param ctx the GL context.
* \param target a texture target (GL_TEXTURE_x)
* \param internalFormat user's prefered internal texture format.
* \param format incoming image pixel format.
* \param type incoming image data type.
*
* \return the closest mesa_format for the given format/type arguments
*
* This is called via dd_function_table::ChooseTextureFormat. Hardware
* drivers may override this function with a specialized version.
*/
mesa_format
_mesa_choose_tex_format(struct gl_context *ctx, GLenum target,
GLint internalFormat, GLenum format, GLenum type)
{
(void) format;
switch (internalFormat) {
/* shallow RGBA formats */
case 4:
case GL_RGBA:
if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
RETURN_IF_SUPPORTED(MESA_FORMAT_B4G4R4A4_UNORM);
} else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
RETURN_IF_SUPPORTED(MESA_FORMAT_B5G5R5A1_UNORM);
} else if (type == GL_UNSIGNED_INT_2_10_10_10_REV) {
RETURN_IF_SUPPORTED(MESA_FORMAT_B10G10R10A2_UNORM);
}
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
case GL_RGBA8:
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
case GL_RGB5_A1:
RETURN_IF_SUPPORTED(MESA_FORMAT_B5G5R5A1_UNORM);
break;
case GL_RGBA2:
RETURN_IF_SUPPORTED(MESA_FORMAT_A4R4G4B4_UNORM); /* just to test another format*/
RETURN_IF_SUPPORTED(MESA_FORMAT_B4G4R4A4_UNORM);
break;
case GL_RGBA4:
RETURN_IF_SUPPORTED(MESA_FORMAT_B4G4R4A4_UNORM);
break;
/* deep RGBA formats */
case GL_RGB10_A2:
RETURN_IF_SUPPORTED(MESA_FORMAT_B10G10R10A2_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
case GL_RGBA12:
case GL_RGBA16:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
/* shallow RGB formats */
case 3:
case GL_RGB:
if (type == GL_UNSIGNED_INT_2_10_10_10_REV) {
RETURN_IF_SUPPORTED(MESA_FORMAT_B10G10R10A2_UNORM);
}
/* fallthrough */
case GL_RGB8:
RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_UNORM8);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8X8_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
case GL_R3_G3_B2:
RETURN_IF_SUPPORTED(MESA_FORMAT_B2G3R3_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B5G6R5_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R5G6B5_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_UNORM8);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8X8_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
case GL_RGB4:
RETURN_IF_SUPPORTED(MESA_FORMAT_R5G6B5_UNORM); /* just to test another format */
RETURN_IF_SUPPORTED(MESA_FORMAT_B5G6R5_UNORM);
break;
case GL_RGB5:
RETURN_IF_SUPPORTED(MESA_FORMAT_B5G6R5_UNORM);
break;
/* deep RGB formats */
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_UNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8X8_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
/* Alpha formats */
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA8:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_UNORM8);
break;
case GL_ALPHA12:
case GL_ALPHA16:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_UNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_A_UNORM8);
break;
/* Luminance formats */
case 1:
case GL_LUMINANCE:
case GL_LUMINANCE4:
case GL_LUMINANCE8:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_UNORM8);
break;
case GL_LUMINANCE12:
case GL_LUMINANCE16:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_UNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_L_UNORM8);
break;
/* Luminance/Alpha formats */
case GL_LUMINANCE4_ALPHA4:
RETURN_IF_SUPPORTED(MESA_FORMAT_L4A4_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM);
break;
case 2:
case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE6_ALPHA2:
case GL_LUMINANCE8_ALPHA8:
RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM);
break;
case GL_LUMINANCE12_ALPHA4:
case GL_LUMINANCE12_ALPHA12:
case GL_LUMINANCE16_ALPHA16:
RETURN_IF_SUPPORTED(MESA_FORMAT_L16A16_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM);
break;
case GL_INTENSITY:
case GL_INTENSITY4:
case GL_INTENSITY8:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_UNORM8);
break;
case GL_INTENSITY12:
case GL_INTENSITY16:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_UNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_I_UNORM8);
break;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
RETURN_IF_SUPPORTED(MESA_FORMAT_Z_UNORM32);
RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_S8_UINT);
RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_X8_UINT);
break;
case GL_DEPTH_COMPONENT16:
RETURN_IF_SUPPORTED(MESA_FORMAT_Z_UNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_S8_UINT);
RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_X8_UINT);
break;
case GL_COMPRESSED_ALPHA_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_UNORM8);
break;
case GL_COMPRESSED_LUMINANCE_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_UNORM8);
break;
case GL_COMPRESSED_LUMINANCE_ALPHA_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM);
break;
case GL_COMPRESSED_INTENSITY_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_UNORM8);
break;
case GL_COMPRESSED_RGB_ARB:
/* We don't use texture compression for 1D and 1D array textures.
* For 1D textures, compressions doesn't buy us much.
* For 1D ARRAY textures, there's complicated issues with updating
* sub-regions on non-block boundaries with glCopyTexSubImage, among
* other issues. FWIW, the GL_EXT_texture_array extension prohibits
* 1D ARRAY textures in S3TC format.
*/
if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) {
if (ctx->Mesa_DXTn)
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1);
}
RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_UNORM8);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8X8_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
case GL_COMPRESSED_RGBA_ARB:
/* We don't use texture compression for 1D and 1D array textures. */
if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) {
if (ctx->Mesa_DXTn)
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1);
}
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
case GL_RGB565:
RETURN_IF_SUPPORTED(MESA_FORMAT_B5G6R5_UNORM);
break;
case GL_YCBCR_MESA:
if (type == GL_UNSIGNED_SHORT_8_8_MESA)
RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR);
else
RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV);
break;
/* For non-generic compressed format we assert two things:
*
* 1. The format has already been validated against the set of available
* extensions.
*
* 2. The driver only enables the extension if it supports all of the
* formats that are part of that extension.
*/
case GL_COMPRESSED_RGB_FXT1_3DFX:
return MESA_FORMAT_RGB_FXT1;
case GL_COMPRESSED_RGBA_FXT1_3DFX:
return MESA_FORMAT_RGBA_FXT1;
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case GL_RGB_S3TC:
case GL_RGB4_S3TC:
return MESA_FORMAT_RGB_DXT1;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
return MESA_FORMAT_RGBA_DXT1;
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
case GL_RGBA_S3TC:
case GL_RGBA4_S3TC:
return MESA_FORMAT_RGBA_DXT3;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
return MESA_FORMAT_RGBA_DXT5;
case GL_COMPRESSED_RED_RGTC1:
return MESA_FORMAT_R_RGTC1_UNORM;
case GL_COMPRESSED_SIGNED_RED_RGTC1:
return MESA_FORMAT_R_RGTC1_SNORM;
case GL_COMPRESSED_RG_RGTC2:
return MESA_FORMAT_RG_RGTC2_UNORM;
case GL_COMPRESSED_SIGNED_RG_RGTC2:
return MESA_FORMAT_RG_RGTC2_SNORM;
case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
return MESA_FORMAT_L_LATC1_UNORM;
case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
return MESA_FORMAT_L_LATC1_SNORM;
case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
return MESA_FORMAT_LA_LATC2_UNORM;
case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
return MESA_FORMAT_LA_LATC2_SNORM;
case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
return MESA_FORMAT_LA_LATC2_UNORM;
case GL_ETC1_RGB8_OES:
return MESA_FORMAT_ETC1_RGB8;
case GL_COMPRESSED_RGB8_ETC2:
return MESA_FORMAT_ETC2_RGB8;
case GL_COMPRESSED_SRGB8_ETC2:
return MESA_FORMAT_ETC2_SRGB8;
case GL_COMPRESSED_RGBA8_ETC2_EAC:
return MESA_FORMAT_ETC2_RGBA8_EAC;
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
return MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC;
case GL_COMPRESSED_R11_EAC:
return MESA_FORMAT_ETC2_R11_EAC;
case GL_COMPRESSED_RG11_EAC:
return MESA_FORMAT_ETC2_RG11_EAC;
case GL_COMPRESSED_SIGNED_R11_EAC:
return MESA_FORMAT_ETC2_SIGNED_R11_EAC;
case GL_COMPRESSED_SIGNED_RG11_EAC:
return MESA_FORMAT_ETC2_SIGNED_RG11_EAC;
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
return MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1;
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
return MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1;
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
return MESA_FORMAT_SRGB_DXT1;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
return MESA_FORMAT_SRGBA_DXT1;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
return MESA_FORMAT_SRGBA_DXT3;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
return MESA_FORMAT_SRGBA_DXT5;
case GL_ALPHA16F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_A_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
break;
case GL_ALPHA32F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_A_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
break;
case GL_LUMINANCE16F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_L_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
break;
case GL_LUMINANCE32F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_L_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
break;
case GL_LUMINANCE_ALPHA16F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
break;
case GL_LUMINANCE_ALPHA32F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
break;
case GL_INTENSITY16F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_I_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
break;
case GL_INTENSITY32F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_I_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
break;
case GL_RGB16F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
break;
case GL_RGB32F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
break;
case GL_RGBA16F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
break;
case GL_RGBA32F_ARB:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
break;
case GL_RGB9_E5:
/* GL_EXT_texture_shared_exponent -- just one format to support */
ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_R9G9B9E5_FLOAT]);
return MESA_FORMAT_R9G9B9E5_FLOAT;
case GL_R11F_G11F_B10F:
/* GL_EXT_texture_packed_float -- just one format to support */
ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_R11G11B10_FLOAT]);
return MESA_FORMAT_R11G11B10_FLOAT;
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_S8_UINT_Z24_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_X8_UINT);
break;
case GL_DEPTH_COMPONENT32F:
ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_Z_FLOAT32]);
return MESA_FORMAT_Z_FLOAT32;
case GL_DEPTH32F_STENCIL8:
ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_Z32_FLOAT_S8X24_UINT]);
return MESA_FORMAT_Z32_FLOAT_S8X24_UINT;
case GL_DUDV_ATI:
case GL_DU8DV8_ATI:
RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8);
break;
case GL_RED_SNORM:
case GL_R8_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_SNORM8);
break;
case GL_RG_SNORM:
case GL_RG8_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8_SNORM);
break;
case GL_RGB_SNORM:
case GL_RGB8_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_X8B8G8R8_SNORM);
/* FALLTHROUGH */
case GL_RGBA_SNORM:
case GL_RGBA8_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_ALPHA_SNORM:
case GL_ALPHA8_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_SNORM8);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_LUMINANCE_SNORM:
case GL_LUMINANCE8_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_SNORM8);
RETURN_IF_SUPPORTED(MESA_FORMAT_X8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_LUMINANCE_ALPHA_SNORM:
case GL_LUMINANCE8_ALPHA8_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_INTENSITY_SNORM:
case GL_INTENSITY8_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_SNORM8);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_R16_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_SNORM16);
break;
case GL_RG16_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_R16G16_SNORM);
break;
case GL_RGB16_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_SNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_SNORM16);
/* FALLTHROUGH */
case GL_RGBA16_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_ALPHA16_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_SNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_LUMINANCE16_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_SNORM16);
/* FALLTHROUGH */
case GL_LUMINANCE16_ALPHA16_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_SNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_INTENSITY16_SNORM:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_SNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SNORM16);
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM);
break;
case GL_SRGB_EXT:
case GL_SRGB8_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_SRGB8);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB);
break;
case GL_SRGB_ALPHA_EXT:
case GL_SRGB8_ALPHA8_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SRGB);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB);
break;
case GL_SLUMINANCE_EXT:
case GL_SLUMINANCE8_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_SRGB8);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB);
break;
case GL_SLUMINANCE_ALPHA_EXT:
case GL_SLUMINANCE8_ALPHA8_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_SRGB);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB);
break;
case GL_COMPRESSED_SLUMINANCE_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_SRGB8);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB);
break;
case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_SRGB);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB);
break;
case GL_COMPRESSED_SRGB_EXT:
if (ctx->Mesa_DXTn)
RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1);
RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_SRGB8);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB);
break;
case GL_COMPRESSED_SRGB_ALPHA_EXT:
if (ctx->Mesa_DXTn)
RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */
RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SRGB);
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB);
break;
case GL_ALPHA8UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_UINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
break;
case GL_ALPHA16UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_UINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
break;
case GL_ALPHA32UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_UINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
break;
case GL_ALPHA8I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_SINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8);
break;
case GL_ALPHA16I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_SINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16);
break;
case GL_ALPHA32I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_A_SINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32);
break;
case GL_LUMINANCE8UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_UINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
break;
case GL_LUMINANCE16UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_UINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
break;
case GL_LUMINANCE32UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_UINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
break;
case GL_LUMINANCE8I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_SINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8);
break;
case GL_LUMINANCE16I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_SINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16);
break;
case GL_LUMINANCE32I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_L_SINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32);
break;
case GL_LUMINANCE_ALPHA8UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_UINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
break;
case GL_LUMINANCE_ALPHA16UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_UINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
break;
case GL_LUMINANCE_ALPHA32UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_UINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
break;
case GL_LUMINANCE_ALPHA8I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_SINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8);
break;
case GL_LUMINANCE_ALPHA16I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_SINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16);
break;
case GL_LUMINANCE_ALPHA32I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_LA_SINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32);
break;
case GL_INTENSITY8UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_UINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
break;
case GL_INTENSITY16UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_UINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
break;
case GL_INTENSITY32UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_UINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
break;
case GL_INTENSITY8I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_SINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8);
break;
case GL_INTENSITY16I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_SINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16);
break;
case GL_INTENSITY32I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_I_SINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32);
break;
case GL_RGB8UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_UINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
break;
case GL_RGB16UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_UINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
break;
case GL_RGB32UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_UINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
break;
case GL_RGB8I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_SINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_SINT8);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8);
break;
case GL_RGB16I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_SINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_SINT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16);
break;
case GL_RGB32I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_SINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_SINT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32);
break;
case GL_RGBA8UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
break;
case GL_RGBA16UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
break;
case GL_RGBA32UI_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
break;
case GL_RGBA8I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8);
break;
case GL_RGBA16I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16);
break;
case GL_RGBA32I_EXT:
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32);
break;
case GL_R8:
case GL_RED:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_UNORM8);
break;
case GL_COMPRESSED_RED:
if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY)
RETURN_IF_SUPPORTED(MESA_FORMAT_R_RGTC1_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R_UNORM8);
break;
case GL_R16:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_UNORM16);
break;
case GL_RG:
case GL_RG8:
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8_UNORM);
break;
case GL_COMPRESSED_RG:
if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY)
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2_UNORM);
RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8_UNORM);
break;
case GL_RG16:
RETURN_IF_SUPPORTED(MESA_FORMAT_R16G16_UNORM);
break;
case GL_R16F:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
break;
case GL_R32F:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
break;
case GL_RG16F:
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
break;
case GL_RG32F:
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16);
RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
break;
case GL_R8UI:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT8);
break;
case GL_RG8UI:
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT8);
break;
case GL_R16UI:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT16);
break;
case GL_RG16UI:
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT16);
break;
case GL_R32UI:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT32);
break;
case GL_RG32UI:
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT32);
break;
case GL_R8I:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_SINT8);
break;
case GL_RG8I:
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_SINT8);
break;
case GL_R16I:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_SINT16);
break;
case GL_RG16I:
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_SINT16);
break;
case GL_R32I:
RETURN_IF_SUPPORTED(MESA_FORMAT_R_SINT32);
break;
case GL_RG32I:
RETURN_IF_SUPPORTED(MESA_FORMAT_RG_SINT32);
break;
case GL_RGB10_A2UI:
RETURN_IF_SUPPORTED(MESA_FORMAT_B10G10R10A2_UINT);
RETURN_IF_SUPPORTED(MESA_FORMAT_R10G10B10A2_UINT);
break;
case GL_BGRA:
RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM);
break;
}
_mesa_problem(ctx, "unexpected format %s in _mesa_choose_tex_format()",
_mesa_lookup_enum_by_nr(internalFormat));
return MESA_FORMAT_NONE;
}
GLboolean
_mesa_tex_target_is_array(GLenum target)
{
switch (target) {
case GL_TEXTURE_1D_ARRAY_EXT:
case GL_TEXTURE_2D_ARRAY_EXT:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
case GL_TEXTURE_CUBE_MAP_ARRAY:
return GL_TRUE;
default:
return GL_FALSE;
}
}
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