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/*
* 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
{
MESA_FORMAT_NONE = 0,
/**
* \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 GLint
_mesa_get_format_bits(gl_format format, GLenum pname);
extern void
_mesa_test_formats(void);
#endif /* FORMATS_H */
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