/* * 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 "enums.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, GLenum target, 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_RGB565); RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); 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; 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: /* 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->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: /* We don't use texture compression for 1D and 1D array textures. */ if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) { 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.ARB_ES2_compatibility) { switch (internalFormat) { case GL_RGB565: RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); 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 (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 */ } } 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 */ } } 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_FLOAT16); 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); RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 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_FLOAT16); 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); RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 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_FLOAT16); 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); RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 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_FLOAT16); 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); RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_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_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_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; 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.ARB_depth_buffer_float) { switch (internalFormat) { case GL_DEPTH_COMPONENT32F: ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_Z32_FLOAT]); return MESA_FORMAT_Z32_FLOAT; case GL_DEPTH32F_STENCIL8: ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_Z32_FLOAT_X24S8]); return MESA_FORMAT_Z32_FLOAT_X24S8; 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 (ctx->Extensions.EXT_texture_compression_s3tc) RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); break; case GL_COMPRESSED_SRGB_ALPHA_EXT: if (ctx->Extensions.EXT_texture_compression_s3tc) RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); break; 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; default: ; /* fallthrough */ } } #endif /* FEATURE_EXT_texture_sRGB */ if (ctx->Extensions.EXT_texture_integer) { switch (internalFormat) { case GL_ALPHA8UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); break; case GL_ALPHA16UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); break; case GL_ALPHA32UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); break; case GL_ALPHA8I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); break; case GL_ALPHA16I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); break; case GL_ALPHA32I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); break; case GL_LUMINANCE8UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); break; case GL_LUMINANCE16UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); break; case GL_LUMINANCE32UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); break; case GL_LUMINANCE8I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); break; case GL_LUMINANCE16I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); break; case GL_LUMINANCE32I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); break; case GL_LUMINANCE_ALPHA8UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); break; case GL_LUMINANCE_ALPHA16UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); break; case GL_LUMINANCE_ALPHA32UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); break; case GL_LUMINANCE_ALPHA8I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); break; case GL_LUMINANCE_ALPHA16I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); break; case GL_LUMINANCE_ALPHA32I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); break; case GL_INTENSITY8UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); break; case GL_INTENSITY16UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); break; case GL_INTENSITY32UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); break; case GL_INTENSITY8I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); break; case GL_INTENSITY16I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); break; case GL_INTENSITY32I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); break; } } if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) { switch (internalFormat) { case GL_RGB8UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_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_RGBA_UINT16); break; case GL_RGB32UI_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); break; case GL_RGB8I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT8); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); break; case GL_RGB16I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT16); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); break; case GL_RGB32I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT32); RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); 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_INT8); break; case GL_RGBA16I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); break; case GL_RGBA32I_EXT: RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); 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: if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) 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_GR88); break; case GL_COMPRESSED_RG: if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); RETURN_IF_SUPPORTED(MESA_FORMAT_GR88); 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_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; default: ; /* fallthrough */ } } if (ctx->Version >= 30 || (ctx->Extensions.ARB_texture_rg && ctx->Extensions.EXT_texture_integer)) { switch (internalFormat) { 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_INT8); break; case GL_RG8I: RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT8); break; case GL_R16I: RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT16); break; case GL_RG16I: RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT16); break; case GL_R32I: RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT32); break; case GL_RG32I: RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT32); break; default: break; } } if (ctx->Extensions.ARB_texture_rgb10_a2ui) { switch (internalFormat) { case GL_RGB10_A2UI: RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010_UINT); RETURN_IF_SUPPORTED(MESA_FORMAT_ABGR2101010_UINT); break; default: break; } } /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0). */ if (_mesa_is_gles(ctx)) { 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 */ } } if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) { switch (internalFormat) { case GL_ETC1_RGB8_OES: RETURN_IF_SUPPORTED(MESA_FORMAT_ETC1_RGB8); break; default: ; /* fallthrough */ } } _mesa_problem(ctx, "unexpected format %s in _mesa_choose_tex_format()", _mesa_lookup_enum_by_nr(internalFormat)); return MESA_FORMAT_NONE; }