src/mesa/state_tracker/st_format.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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  26  **************************************************************************/
  27
  28
  29 #ifndef ST_FORMAT_H
  30 #define ST_FORMAT_H
  31
  32 #include "main/formats.h"
  33
  34 struct pipe_format_info
  35 {
  36    enum pipe_format format;
  37    gl_format mesa_format;
  38    GLenum datatype;
  39    GLubyte red_bits;
  40    GLubyte green_bits;
  41    GLubyte blue_bits;
  42    GLubyte alpha_bits;
  43    GLubyte luminance_bits;
  44    GLubyte intensity_bits;
  45    GLubyte depth_bits;
  46    GLubyte stencil_bits;
  47    GLubyte size;           /**< in bytes */
  48 };
  49
  50
  51 GLboolean
  52 st_get_format_info(enum pipe_format format, struct pipe_format_info *pinfo);
  53
  54
  55 extern GLuint
  56 st_sizeof_format(enum pipe_format format);
  57
  58
  59 extern GLenum
  60 st_format_datatype(enum pipe_format format);
  61
  62
  63 extern enum pipe_format
  64 st_mesa_format_to_pipe_format(gl_format mesaFormat);
  65
  66 extern gl_format
  67 st_pipe_format_to_mesa_format(enum pipe_format pipeFormat);
  68
  69
  70 extern enum pipe_format
  71 st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
  72                  enum pipe_texture_target target, unsigned tex_usage);
  73
  74 extern enum pipe_format
  75 st_choose_renderbuffer_format(struct pipe_screen *screen,
  76                               GLenum internalFormat);
  77
  78
  79 extern gl_format
  80 st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
  81                        GLenum format, GLenum type);
  82
  83
  84 extern GLboolean
  85 st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type);
  86
  87
  88 #endif /* ST_CB_TEXIMAGE_H */