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Diffstat (limited to 'src/mesa/main/formats.h')
| -rw-r--r-- | src/mesa/main/formats.h | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/src/mesa/main/formats.h b/src/mesa/main/formats.h new file mode 100644 index 00000000000..61bbd8e79aa --- /dev/null +++ b/src/mesa/main/formats.h @@ -0,0 +1,213 @@ +/* + * 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. + */ + +/* + * Authors: + * Brian Paul + */ + + +#ifndef FORMATS_H +#define FORMATS_H + + +#include "main/mtypes.h" + + + +/** + * Mesa texture/renderbuffer image formats. + */ +typedef enum +{ + /** + * \name Basic hardware formats + */ + /*@{*/ + /* msb <------ TEXEL BITS -----------> lsb */ + /* ---- ---- ---- ---- ---- ---- ---- ---- */ + MESA_FORMAT_RGBA8888, /* RRRR RRRR GGGG GGGG BBBB BBBB AAAA AAAA */ + MESA_FORMAT_RGBA8888_REV, /* AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */ + MESA_FORMAT_ARGB8888, /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */ + MESA_FORMAT_ARGB8888_REV, /* BBBB BBBB GGGG GGGG RRRR RRRR AAAA AAAA */ + MESA_FORMAT_RGB888, /* RRRR RRRR GGGG GGGG BBBB BBBB */ + MESA_FORMAT_BGR888, /* BBBB BBBB GGGG GGGG RRRR RRRR */ + MESA_FORMAT_RGB565, /* RRRR RGGG GGGB BBBB */ + MESA_FORMAT_RGB565_REV, /* GGGB BBBB RRRR RGGG */ + MESA_FORMAT_RGBA4444, /* RRRR GGGG BBBB AAAA */ + MESA_FORMAT_ARGB4444, /* AAAA RRRR GGGG BBBB */ + MESA_FORMAT_ARGB4444_REV, /* GGGG BBBB AAAA RRRR */ + MESA_FORMAT_RGBA5551, /* RRRR RGGG GGBB BBBA */ + MESA_FORMAT_ARGB1555, /* ARRR RRGG GGGB BBBB */ + MESA_FORMAT_ARGB1555_REV, /* GGGB BBBB ARRR RRGG */ + MESA_FORMAT_AL88, /* AAAA AAAA LLLL LLLL */ + MESA_FORMAT_AL88_REV, /* LLLL LLLL AAAA AAAA */ + MESA_FORMAT_RGB332, /* RRRG GGBB */ + MESA_FORMAT_A8, /* AAAA AAAA */ + MESA_FORMAT_L8, /* LLLL LLLL */ + MESA_FORMAT_I8, /* IIII IIII */ + MESA_FORMAT_CI8, /* CCCC CCCC */ + MESA_FORMAT_YCBCR, /* YYYY YYYY UorV UorV */ + MESA_FORMAT_YCBCR_REV, /* UorV UorV YYYY YYYY */ + MESA_FORMAT_Z24_S8, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ SSSS SSSS */ + MESA_FORMAT_S8_Z24, /* SSSS SSSS ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */ + MESA_FORMAT_Z16, /* ZZZZ ZZZZ ZZZZ ZZZZ */ + MESA_FORMAT_Z32, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */ + MESA_FORMAT_S8, /* SSSS SSSS */ + /*@}*/ + +#if FEATURE_EXT_texture_sRGB + /** + * \name 8-bit/channel sRGB formats + */ + /*@{*/ + MESA_FORMAT_SRGB8, + MESA_FORMAT_SRGBA8, + MESA_FORMAT_SARGB8, + MESA_FORMAT_SL8, + MESA_FORMAT_SLA8, +#if FEATURE_texture_s3tc + MESA_FORMAT_SRGB_DXT1, + MESA_FORMAT_SRGBA_DXT1, + MESA_FORMAT_SRGBA_DXT3, + MESA_FORMAT_SRGBA_DXT5, +#endif + /*@}*/ +#endif + + /** + * \name Compressed texture formats. + */ + /*@{*/ +#if FEATURE_texture_fxt1 + MESA_FORMAT_RGB_FXT1, + MESA_FORMAT_RGBA_FXT1, +#endif +#if FEATURE_texture_s3tc + MESA_FORMAT_RGB_DXT1, + MESA_FORMAT_RGBA_DXT1, + MESA_FORMAT_RGBA_DXT3, + MESA_FORMAT_RGBA_DXT5, +#endif + /*@}*/ + + /** + * \name Generic GLchan-based formats. (XXX obsolete!) + */ + /*@{*/ + MESA_FORMAT_RGBA, + MESA_FORMAT_RGB, + MESA_FORMAT_ALPHA, + MESA_FORMAT_LUMINANCE, + MESA_FORMAT_LUMINANCE_ALPHA, + MESA_FORMAT_INTENSITY, + /*@}*/ + + /** + * \name Floating point texture formats. + */ + /*@{*/ + MESA_FORMAT_RGBA_FLOAT32, + MESA_FORMAT_RGBA_FLOAT16, + MESA_FORMAT_RGB_FLOAT32, + MESA_FORMAT_RGB_FLOAT16, + MESA_FORMAT_ALPHA_FLOAT32, + MESA_FORMAT_ALPHA_FLOAT16, + MESA_FORMAT_LUMINANCE_FLOAT32, + MESA_FORMAT_LUMINANCE_FLOAT16, + MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, + MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, + MESA_FORMAT_INTENSITY_FLOAT32, + MESA_FORMAT_INTENSITY_FLOAT16, + /*@}*/ + + /** + * \name Signed fixed point texture formats. + */ + /*@{*/ + MESA_FORMAT_DUDV8, + MESA_FORMAT_SIGNED_RGBA8888, + MESA_FORMAT_SIGNED_RGBA8888_REV, + /*@}*/ + + MESA_FORMAT_COUNT, +} gl_format; + + +/** + * Information about texture formats. + */ +struct gl_format_info +{ + gl_format Name; + + /** + * Base format is one of GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, + * GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_COLOR_INDEX, GL_DEPTH_COMPONENT. + */ + GLenum BaseFormat; + + /** + * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALED, + * GL_UNSIGNED_INT, GL_SIGNED_INT, GL_FLOAT. + */ + GLenum DataType; + + GLubyte RedBits; + GLubyte GreenBits; + GLubyte BlueBits; + GLubyte AlphaBits; + GLubyte LuminanceBits; + GLubyte IntensityBits; + GLubyte IndexBits; + GLubyte DepthBits; + GLubyte StencilBits; + + /** + * To describe compressed formats. If not compressed, Width=Height=1. + */ + GLubyte BlockWidth, BlockHeight; + GLubyte BytesPerBlock; +}; + + + +extern GLuint +_mesa_get_format_bytes(gl_format format); + +extern GLenum +_mesa_get_format_base_format(gl_format format); + +extern GLboolean +_mesa_is_format_compressed(gl_format format); + +extern void +_mesa_format_to_type_and_comps2(gl_format format, + GLenum *datatype, GLuint *comps); + +extern void +_mesa_test_formats(void); + +#endif /* FORMATS_H */ |