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,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  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.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #ifndef ST_CB_TEXIMAGE_H
  30 #define ST_CB_TEXIMAGE_H
  31
  32
  33 struct pipe_format_info
  34 {
  35    GLuint format;
  36    GLenum base_format;
  37    GLubyte red_bits;
  38    GLubyte green_bits;
  39    GLubyte blue_bits;
  40    GLubyte alpha_bits;
  41    GLubyte luminance_bits;
  42    GLubyte intensity_bits;
  43    GLubyte depth_bits;
  44    GLubyte stencil_bits;
  45    GLubyte size;           /**< in bytes */
  46 };
  47
  48
  49 extern const struct pipe_format_info *
  50 st_get_format_info(GLuint format);
  51
  52
  53 extern GLuint
  54 st_sizeof_format(GLuint pipeFormat);
  55
  56
  57 extern GLuint
  58 st_mesa_format_to_pipe_format(GLuint mesaFormat);
  59
  60
  61 extern GLuint
  62 st_choose_pipe_format(struct pipe_context *pipe, GLint internalFormat,
  63                       GLenum format, GLenum type);
  64
  65
  66 extern const struct gl_texture_format *
  67 st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
  68                        GLenum format, GLenum type);
  69
  70
  71 #endif /* ST_CB_TEXIMAGE_H */