diff options
Diffstat (limited to 'src/mesa/main')
| -rw-r--r-- | src/mesa/main/texformat.c | 370 |
1 files changed, 184 insertions, 186 deletions
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c index 0ae79ea7d08..241e2bfa7fd 100644 --- a/src/mesa/main/texformat.c +++ b/src/mesa/main/texformat.c @@ -50,162 +50,161 @@ * 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 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. + * \return the closest gl_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. */ 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); - } else if (type == GL_UNSIGNED_INT_2_10_10_10_REV) { - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); - } - 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: - if (type == GL_UNSIGNED_INT_2_10_10_10_REV) { - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); - } - /* fallthrough */ - 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_XBGR16161616_UNORM); - 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; + /* 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); + } else if (type == GL_UNSIGNED_INT_2_10_10_10_REV) { + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); + } + 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: + if (type == GL_UNSIGNED_INT_2_10_10_10_REV) { + RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); + } + /* fallthrough */ + 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_XBGR16161616_UNORM); + 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_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_DEPTH_COMPONENT: case GL_DEPTH_COMPONENT24: @@ -220,49 +219,49 @@ _mesa_choose_tex_format(struct gl_context *ctx, GLenum target, RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); break; - 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.ANGLE_texture_compression_dxt) - 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.ANGLE_texture_compression_dxt) - 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; + 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.ANGLE_texture_compression_dxt) + 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.ANGLE_texture_compression_dxt) + 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; case GL_RGB565: RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); @@ -821,4 +820,3 @@ _mesa_choose_tex_format(struct gl_context *ctx, GLenum target, _mesa_lookup_enum_by_nr(internalFormat)); return MESA_FORMAT_NONE; } - |