From 1ccf18dc09e288ddf937aa890b50c8d0a9df4319 Mon Sep 17 00:00:00 2001 From: marha Date: Sun, 29 May 2011 15:02:10 +0200 Subject: libX11 mesa mkfontscale pixman xserver git update 29 Mar 2011 --- mesalib/src/mesa/main/texformat.c | 1528 +++++++++++++++++++------------------ 1 file changed, 765 insertions(+), 763 deletions(-) (limited to 'mesalib/src/mesa/main/texformat.c') diff --git a/mesalib/src/mesa/main/texformat.c b/mesalib/src/mesa/main/texformat.c index 41d9e9599..8cbb021d8 100644 --- a/mesalib/src/mesa/main/texformat.c +++ b/mesalib/src/mesa/main/texformat.c @@ -1,763 +1,765 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * 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 - * 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. - */ - - -/** - * \file texformat.c - * Texture formats. - * - * \author Gareth Hughes - * \author Brian Paul - */ - - -#include "context.h" -#include "mfeatures.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 internalFormat user's prefered internal texture format. - * \param format incoming image pixel format. - * \param type incoming image data type. - * - * \return a pointer to a gl_texture_format object which describes the - * choosen texture format, or NULL on failure. - * - * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers - * will typically override this function with a specialized version. - */ -gl_format -_mesa_choose_tex_format( struct gl_context *ctx, GLint internalFormat, - GLenum format, GLenum type ) -{ - (void) format; - (void) type; - - 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_ARGB4444); - } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) { - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555); - } - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - - case GL_RGBA8: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_RGB5_A1: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555); - break; - case GL_RGBA2: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV); /* just to test another format*/ - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); - break; - case GL_RGBA4: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); - break; - - /* deep RGBA formats */ - case GL_RGB10_A2: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_RGBA12: - case GL_RGBA16: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - - /* shallow RGB formats */ - case 3: - case GL_RGB: - case GL_RGB8: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); - RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_R3_G3_B2: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); - RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_RGB4: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); /* just to test another format */ - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); - break; - case GL_RGB5: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); - break; - - /* deep RGB formats */ - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - - /* Alpha formats */ - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - RETURN_IF_SUPPORTED(MESA_FORMAT_A8); - break; - - case GL_ALPHA12: - case GL_ALPHA16: - RETURN_IF_SUPPORTED(MESA_FORMAT_A16); - RETURN_IF_SUPPORTED(MESA_FORMAT_A8); - break; - - /* Luminance formats */ - case 1: - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - RETURN_IF_SUPPORTED(MESA_FORMAT_L8); - break; - - case GL_LUMINANCE12: - case GL_LUMINANCE16: - RETURN_IF_SUPPORTED(MESA_FORMAT_L16); - RETURN_IF_SUPPORTED(MESA_FORMAT_L8); - break; - - /* Luminance/Alpha formats */ - case GL_LUMINANCE4_ALPHA4: - RETURN_IF_SUPPORTED(MESA_FORMAT_AL44); - RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); - break; - - case 2: - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); - break; - - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616); - RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); - break; - - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - RETURN_IF_SUPPORTED(MESA_FORMAT_I8); - break; - - case GL_INTENSITY12: - case GL_INTENSITY16: - RETURN_IF_SUPPORTED(MESA_FORMAT_I16); - RETURN_IF_SUPPORTED(MESA_FORMAT_I8); - break; - - case GL_COLOR_INDEX: - case GL_COLOR_INDEX1_EXT: - case GL_COLOR_INDEX2_EXT: - case GL_COLOR_INDEX4_EXT: - case GL_COLOR_INDEX12_EXT: - case GL_COLOR_INDEX16_EXT: - case GL_COLOR_INDEX8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_CI8); - break; - - default: - ; /* fallthrough */ - } - - if (ctx->Extensions.ARB_depth_texture) { - switch (internalFormat) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT24: - case GL_DEPTH_COMPONENT32: - RETURN_IF_SUPPORTED(MESA_FORMAT_Z32); - RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); - break; - case GL_DEPTH_COMPONENT16: - RETURN_IF_SUPPORTED(MESA_FORMAT_Z16); - RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); - default: - ; /* fallthrough */ - } - } - - switch (internalFormat) { - case GL_COMPRESSED_ALPHA_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_A8); - break; - case GL_COMPRESSED_LUMINANCE_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_L8); - break; - case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); - break; - case GL_COMPRESSED_INTENSITY_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_I8); - break; - case GL_COMPRESSED_RGB_ARB: - if (ctx->Extensions.EXT_texture_compression_s3tc || - ctx->Extensions.S3_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); - if (ctx->Extensions.TDFX_texture_compression_FXT1) - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); - RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_COMPRESSED_RGBA_ARB: - if (ctx->Extensions.EXT_texture_compression_s3tc || - ctx->Extensions.S3_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */ - if (ctx->Extensions.TDFX_texture_compression_FXT1) - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - default: - ; /* fallthrough */ - } - - if (ctx->Extensions.MESA_ycbcr_texture) { - if (internalFormat == 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); - } - } - -#if FEATURE_texture_fxt1 - if (ctx->Extensions.TDFX_texture_compression_FXT1) { - switch (internalFormat) { - case GL_COMPRESSED_RGB_FXT1_3DFX: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1); - break; - case GL_COMPRESSED_RGBA_FXT1_3DFX: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1); - break; - default: - ; /* fallthrough */ - } - } -#endif - -#if FEATURE_texture_s3tc - if (ctx->Extensions.EXT_texture_compression_s3tc) { - switch (internalFormat) { - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); - break; - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1); - break; - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); - break; - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.S3_s3tc) { - switch (internalFormat) { - case GL_RGB_S3TC: - case GL_RGB4_S3TC: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); - break; - case GL_RGBA_S3TC: - case GL_RGBA4_S3TC: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); - break; - default: - ; /* fallthrough */ - } - } -#endif - - if (ctx->Extensions.ARB_texture_float) { - switch (internalFormat) { - case GL_ALPHA16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_ALPHA32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_LUMINANCE16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_LUMINANCE32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_LUMINANCE_ALPHA16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_LUMINANCE_ALPHA32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_INTENSITY16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_INTENSITY32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_RGB16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_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_RGBA_FLOAT32); - 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); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_shared_exponent) { - switch (internalFormat) { - case GL_RGB9_E5: - ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_RGB9_E5_FLOAT]); - return MESA_FORMAT_RGB9_E5_FLOAT; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_packed_float) { - switch (internalFormat) { - case GL_R11F_G11F_B10F: - ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_R11_G11_B10_FLOAT]); - return MESA_FORMAT_R11_G11_B10_FLOAT; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_packed_depth_stencil) { - switch (internalFormat) { - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8); - RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ATI_envmap_bumpmap) { - switch (internalFormat) { - case GL_DUDV_ATI: - case GL_DU8DV8_ATI: - RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_snorm) { - switch (internalFormat) { - case GL_RED_SNORM: - case GL_R8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8); - break; - case GL_RG_SNORM: - case GL_RG8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88_REV); - break; - case GL_RGB_SNORM: - case GL_RGB8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); - /* FALLTHROUGH */ - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_ALPHA_SNORM: - case GL_ALPHA8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_LUMINANCE_SNORM: - case GL_LUMINANCE8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_LUMINANCE_ALPHA_SNORM: - case GL_LUMINANCE8_ALPHA8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_INTENSITY_SNORM: - case GL_INTENSITY8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_R16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16); - break; - case GL_RG16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616); - break; - case GL_RGB16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16); - /* FALLTHROUGH */ - case GL_RGBA16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_ALPHA16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_LUMINANCE16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16); - /* FALLTHROUGH */ - case GL_LUMINANCE16_ALPHA16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_INTENSITY16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - default: - ; /* fall-through */ - } - } - -#if FEATURE_EXT_texture_sRGB - if (ctx->Extensions.EXT_texture_sRGB) { - switch (internalFormat) { - case GL_SRGB_EXT: - case GL_SRGB8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_SRGB_ALPHA_EXT: - case GL_SRGB8_ALPHA8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_SLUMINANCE_EXT: - case GL_SLUMINANCE8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SL8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_SLUMINANCE_ALPHA_EXT: - case GL_SLUMINANCE8_ALPHA8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SLUMINANCE_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SL8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_EXT: -#if FEATURE_texture_s3tc - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); -#endif - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_ALPHA_EXT: -#if FEATURE_texture_s3tc - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */ -#endif - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; -#if FEATURE_texture_s3tc - case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; -#endif - default: - ; /* fallthrough */ - } - } -#endif /* FEATURE_EXT_texture_sRGB */ - - if (ctx->Extensions.EXT_texture_integer) { - switch (internalFormat) { - case GL_RGBA32UI_EXT: - case GL_RGB32UI_EXT: - case GL_ALPHA32UI_EXT: - case GL_INTENSITY32UI_EXT: - case GL_LUMINANCE32UI_EXT: - case GL_LUMINANCE_ALPHA32UI_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); - break; - case GL_RGBA16UI_EXT: - case GL_RGB16UI_EXT: - case GL_ALPHA16UI_EXT: - case GL_INTENSITY16UI_EXT: - case GL_LUMINANCE16UI_EXT: - case GL_LUMINANCE_ALPHA16UI_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); - break; - case GL_RGBA8UI_EXT: - case GL_RGB8UI_EXT: - case GL_ALPHA8UI_EXT: - case GL_INTENSITY8UI_EXT: - case GL_LUMINANCE8UI_EXT: - case GL_LUMINANCE_ALPHA8UI_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); - break; - case GL_RGBA32I_EXT: - case GL_RGB32I_EXT: - case GL_ALPHA32I_EXT: - case GL_INTENSITY32I_EXT: - case GL_LUMINANCE32I_EXT: - case GL_LUMINANCE_ALPHA32I_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); - break; - case GL_RGBA16I_EXT: - case GL_RGB16I_EXT: - case GL_ALPHA16I_EXT: - case GL_INTENSITY16I_EXT: - case GL_LUMINANCE16I_EXT: - case GL_LUMINANCE_ALPHA16I_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); - break; - case GL_RGBA8I_EXT: - case GL_RGB8I_EXT: - case GL_ALPHA8I_EXT: - case GL_INTENSITY8I_EXT: - case GL_LUMINANCE8I_EXT: - case GL_LUMINANCE_ALPHA8I_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); - break; - } - } - - if (ctx->Extensions.ARB_texture_rg) { - switch (internalFormat) { - case GL_R8: - case GL_RED: - RETURN_IF_SUPPORTED(MESA_FORMAT_R8); - break; - - case GL_COMPRESSED_RED: - RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1); - RETURN_IF_SUPPORTED(MESA_FORMAT_R8); - break; - - case GL_R16: - RETURN_IF_SUPPORTED(MESA_FORMAT_R16); - break; - - case GL_RG: - case GL_RG8: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); - break; - - case GL_COMPRESSED_RG: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); - RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); - break; - - case GL_RG16: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616); - break; - - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ARB_texture_rg && ctx->Extensions.ARB_texture_float) { - switch (internalFormat) { - case GL_R16F: - RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_R32F: - RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_RG16F: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); - 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); - break; - - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_format_BGRA8888) { - switch (internalFormat) { - case GL_BGRA: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ARB_texture_compression_rgtc) { - switch (internalFormat) { - case GL_COMPRESSED_RED_RGTC1: - RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1); - break; - case GL_COMPRESSED_SIGNED_RED_RGTC1: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1); - break; - case GL_COMPRESSED_RG_RGTC2: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); - break; - case GL_COMPRESSED_SIGNED_RG_RGTC2: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_compression_latc) { - switch (internalFormat) { - case GL_COMPRESSED_LUMINANCE_LATC1_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1); - break; - case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1); - break; - case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2); - break; - case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ATI_texture_compression_3dc) { - switch (internalFormat) { - case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2); - break; - default: - ; /* fallthrough */ - } - } - - _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()"); - return MESA_FORMAT_NONE; -} - +/* + * Mesa 3-D graphics library + * Version: 7.7 + * + * 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 + * 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. + */ + + +/** + * \file texformat.c + * Texture formats. + * + * \author Gareth Hughes + * \author Brian Paul + */ + + +#include "context.h" +#include "mfeatures.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 internalFormat user's prefered internal texture format. + * \param format incoming image pixel format. + * \param type incoming image data type. + * + * \return a pointer to a gl_texture_format object which describes the + * choosen texture format, or NULL on failure. + * + * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers + * will typically override this function with a specialized version. + */ +gl_format +_mesa_choose_tex_format( struct gl_context *ctx, GLint internalFormat, + GLenum format, GLenum type ) +{ + (void) format; + (void) type; + + 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_ARGB4444); + } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) { + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555); + } + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + + case GL_RGBA8: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + case GL_RGB5_A1: + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555); + break; + case GL_RGBA2: + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV); /* just to test another format*/ + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); + break; + case GL_RGBA4: + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); + break; + + /* deep RGBA formats */ + case GL_RGB10_A2: + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + case GL_RGBA12: + case GL_RGBA16: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + + /* shallow RGB formats */ + case 3: + case GL_RGB: + case GL_RGB8: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); + RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + case GL_R3_G3_B2: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); + RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + case GL_RGB4: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); /* just to test another format */ + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); + break; + case GL_RGB5: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); + break; + + /* deep RGB formats */ + case GL_RGB10: + case GL_RGB12: + case GL_RGB16: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + + /* Alpha formats */ + case GL_ALPHA: + case GL_ALPHA4: + case GL_ALPHA8: + RETURN_IF_SUPPORTED(MESA_FORMAT_A8); + break; + + case GL_ALPHA12: + case GL_ALPHA16: + RETURN_IF_SUPPORTED(MESA_FORMAT_A16); + RETURN_IF_SUPPORTED(MESA_FORMAT_A8); + break; + + /* Luminance formats */ + case 1: + case GL_LUMINANCE: + case GL_LUMINANCE4: + case GL_LUMINANCE8: + RETURN_IF_SUPPORTED(MESA_FORMAT_L8); + break; + + case GL_LUMINANCE12: + case GL_LUMINANCE16: + RETURN_IF_SUPPORTED(MESA_FORMAT_L16); + RETURN_IF_SUPPORTED(MESA_FORMAT_L8); + break; + + /* Luminance/Alpha formats */ + case GL_LUMINANCE4_ALPHA4: + RETURN_IF_SUPPORTED(MESA_FORMAT_AL44); + RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); + break; + + case 2: + case GL_LUMINANCE_ALPHA: + case GL_LUMINANCE6_ALPHA2: + case GL_LUMINANCE8_ALPHA8: + RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); + break; + + case GL_LUMINANCE12_ALPHA4: + case GL_LUMINANCE12_ALPHA12: + case GL_LUMINANCE16_ALPHA16: + RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616); + RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); + break; + + case GL_INTENSITY: + case GL_INTENSITY4: + case GL_INTENSITY8: + RETURN_IF_SUPPORTED(MESA_FORMAT_I8); + break; + + case GL_INTENSITY12: + case GL_INTENSITY16: + RETURN_IF_SUPPORTED(MESA_FORMAT_I16); + RETURN_IF_SUPPORTED(MESA_FORMAT_I8); + break; + + case GL_COLOR_INDEX: + case GL_COLOR_INDEX1_EXT: + case GL_COLOR_INDEX2_EXT: + case GL_COLOR_INDEX4_EXT: + case GL_COLOR_INDEX12_EXT: + case GL_COLOR_INDEX16_EXT: + case GL_COLOR_INDEX8_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_CI8); + break; + + default: + ; /* fallthrough */ + } + + if (ctx->Extensions.ARB_depth_texture) { + switch (internalFormat) { + case GL_DEPTH_COMPONENT: + case GL_DEPTH_COMPONENT24: + case GL_DEPTH_COMPONENT32: + RETURN_IF_SUPPORTED(MESA_FORMAT_Z32); + RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24); + RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); + break; + case GL_DEPTH_COMPONENT16: + RETURN_IF_SUPPORTED(MESA_FORMAT_Z16); + RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24); + RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); + default: + ; /* fallthrough */ + } + } + + switch (internalFormat) { + case GL_COMPRESSED_ALPHA_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_A8); + break; + case GL_COMPRESSED_LUMINANCE_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_L8); + break; + case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); + break; + case GL_COMPRESSED_INTENSITY_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_I8); + break; + case GL_COMPRESSED_RGB_ARB: + if (ctx->Extensions.EXT_texture_compression_s3tc || + ctx->Extensions.S3_s3tc) + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); + if (ctx->Extensions.TDFX_texture_compression_FXT1) + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); + RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + case GL_COMPRESSED_RGBA_ARB: + if (ctx->Extensions.EXT_texture_compression_s3tc || + ctx->Extensions.S3_s3tc) + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */ + if (ctx->Extensions.TDFX_texture_compression_FXT1) + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + default: + ; /* fallthrough */ + } + + if (ctx->Extensions.MESA_ycbcr_texture) { + if (internalFormat == 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); + } + } + +#if FEATURE_texture_fxt1 + if (ctx->Extensions.TDFX_texture_compression_FXT1) { + switch (internalFormat) { + case GL_COMPRESSED_RGB_FXT1_3DFX: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1); + break; + case GL_COMPRESSED_RGBA_FXT1_3DFX: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1); + break; + default: + ; /* fallthrough */ + } + } +#endif + +#if FEATURE_texture_s3tc + if (ctx->Extensions.EXT_texture_compression_s3tc) { + switch (internalFormat) { + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); + break; + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1); + break; + case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); + break; + case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5); + break; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.S3_s3tc) { + switch (internalFormat) { + case GL_RGB_S3TC: + case GL_RGB4_S3TC: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); + break; + case GL_RGBA_S3TC: + case GL_RGBA4_S3TC: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); + break; + default: + ; /* fallthrough */ + } + } +#endif + + if (ctx->Extensions.ARB_texture_float) { + switch (internalFormat) { + case GL_ALPHA16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_ALPHA32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_LUMINANCE16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_LUMINANCE32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_LUMINANCE_ALPHA16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_LUMINANCE_ALPHA32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_INTENSITY16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_INTENSITY32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_RGB16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_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_RGBA_FLOAT32); + 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); + break; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.EXT_texture_shared_exponent) { + switch (internalFormat) { + case GL_RGB9_E5: + ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_RGB9_E5_FLOAT]); + return MESA_FORMAT_RGB9_E5_FLOAT; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.EXT_packed_float) { + switch (internalFormat) { + case GL_R11F_G11F_B10F: + ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_R11_G11_B10_FLOAT]); + return MESA_FORMAT_R11_G11_B10_FLOAT; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.EXT_packed_depth_stencil) { + switch (internalFormat) { + case GL_DEPTH_STENCIL_EXT: + case GL_DEPTH24_STENCIL8_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8); + RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); + break; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.ATI_envmap_bumpmap) { + switch (internalFormat) { + case GL_DUDV_ATI: + case GL_DU8DV8_ATI: + RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8); + break; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.EXT_texture_snorm) { + switch (internalFormat) { + case GL_RED_SNORM: + case GL_R8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8); + break; + case GL_RG_SNORM: + case GL_RG8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88_REV); + break; + case GL_RGB_SNORM: + case GL_RGB8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); + /* FALLTHROUGH */ + case GL_RGBA_SNORM: + case GL_RGBA8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_ALPHA_SNORM: + case GL_ALPHA8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_LUMINANCE_SNORM: + case GL_LUMINANCE8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_LUMINANCE_ALPHA_SNORM: + case GL_LUMINANCE8_ALPHA8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_INTENSITY_SNORM: + case GL_INTENSITY8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_R16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16); + break; + case GL_RG16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616); + break; + case GL_RGB16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16); + /* FALLTHROUGH */ + case GL_RGBA16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_ALPHA16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_LUMINANCE16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16); + /* FALLTHROUGH */ + case GL_LUMINANCE16_ALPHA16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_INTENSITY16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + default: + ; /* fall-through */ + } + } + +#if FEATURE_EXT_texture_sRGB + if (ctx->Extensions.EXT_texture_sRGB) { + switch (internalFormat) { + case GL_SRGB_EXT: + case GL_SRGB8_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_SRGB_ALPHA_EXT: + case GL_SRGB8_ALPHA8_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_SLUMINANCE_EXT: + case GL_SLUMINANCE8_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_SL8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_SLUMINANCE_ALPHA_EXT: + case GL_SLUMINANCE8_ALPHA8_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_COMPRESSED_SLUMINANCE_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_SL8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_COMPRESSED_SRGB_EXT: +#if FEATURE_texture_s3tc + if (ctx->Extensions.EXT_texture_compression_s3tc) + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); +#endif + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_COMPRESSED_SRGB_ALPHA_EXT: +#if FEATURE_texture_s3tc + if (ctx->Extensions.EXT_texture_compression_s3tc) + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */ +#endif + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; +#if FEATURE_texture_s3tc + case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: + if (ctx->Extensions.EXT_texture_compression_s3tc) + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: + if (ctx->Extensions.EXT_texture_compression_s3tc) + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: + if (ctx->Extensions.EXT_texture_compression_s3tc) + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: + if (ctx->Extensions.EXT_texture_compression_s3tc) + RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5); + RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); + break; +#endif + default: + ; /* fallthrough */ + } + } +#endif /* FEATURE_EXT_texture_sRGB */ + + if (ctx->Extensions.EXT_texture_integer) { + switch (internalFormat) { + case GL_RGBA32UI_EXT: + case GL_RGB32UI_EXT: + case GL_ALPHA32UI_EXT: + case GL_INTENSITY32UI_EXT: + case GL_LUMINANCE32UI_EXT: + case GL_LUMINANCE_ALPHA32UI_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); + break; + case GL_RGBA16UI_EXT: + case GL_RGB16UI_EXT: + case GL_ALPHA16UI_EXT: + case GL_INTENSITY16UI_EXT: + case GL_LUMINANCE16UI_EXT: + case GL_LUMINANCE_ALPHA16UI_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); + break; + case GL_RGBA8UI_EXT: + case GL_RGB8UI_EXT: + case GL_ALPHA8UI_EXT: + case GL_INTENSITY8UI_EXT: + case GL_LUMINANCE8UI_EXT: + case GL_LUMINANCE_ALPHA8UI_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); + break; + case GL_RGBA32I_EXT: + case GL_RGB32I_EXT: + case GL_ALPHA32I_EXT: + case GL_INTENSITY32I_EXT: + case GL_LUMINANCE32I_EXT: + case GL_LUMINANCE_ALPHA32I_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); + break; + case GL_RGBA16I_EXT: + case GL_RGB16I_EXT: + case GL_ALPHA16I_EXT: + case GL_INTENSITY16I_EXT: + case GL_LUMINANCE16I_EXT: + case GL_LUMINANCE_ALPHA16I_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); + break; + case GL_RGBA8I_EXT: + case GL_RGB8I_EXT: + case GL_ALPHA8I_EXT: + case GL_INTENSITY8I_EXT: + case GL_LUMINANCE8I_EXT: + case GL_LUMINANCE_ALPHA8I_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); + break; + } + } + + if (ctx->Extensions.ARB_texture_rg) { + switch (internalFormat) { + case GL_R8: + case GL_RED: + RETURN_IF_SUPPORTED(MESA_FORMAT_R8); + break; + + case GL_COMPRESSED_RED: + RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1); + RETURN_IF_SUPPORTED(MESA_FORMAT_R8); + break; + + case GL_R16: + RETURN_IF_SUPPORTED(MESA_FORMAT_R16); + break; + + case GL_RG: + case GL_RG8: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); + break; + + case GL_COMPRESSED_RG: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); + RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); + break; + + case GL_RG16: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616); + break; + + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.ARB_texture_rg && ctx->Extensions.ARB_texture_float) { + switch (internalFormat) { + case GL_R16F: + RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_R32F: + RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_RG16F: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); + 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); + break; + + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.EXT_texture_format_BGRA8888) { + switch (internalFormat) { + case GL_BGRA: + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); + break; + + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.ARB_texture_compression_rgtc) { + switch (internalFormat) { + case GL_COMPRESSED_RED_RGTC1: + RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1); + break; + case GL_COMPRESSED_SIGNED_RED_RGTC1: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1); + break; + case GL_COMPRESSED_RG_RGTC2: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); + break; + case GL_COMPRESSED_SIGNED_RG_RGTC2: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2); + break; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.EXT_texture_compression_latc) { + switch (internalFormat) { + case GL_COMPRESSED_LUMINANCE_LATC1_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1); + break; + case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1); + break; + case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2); + break; + case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2); + break; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.ATI_texture_compression_3dc) { + switch (internalFormat) { + case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: + RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2); + break; + default: + ; /* fallthrough */ + } + } + + _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()"); + return MESA_FORMAT_NONE; +} + -- cgit v1.2.3