st_format.h

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00001 /**************************************************************************
00002  * 
00003  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
00004  * All Rights Reserved.
00005  * 
00006  * Permission is hereby granted, free of charge, to any person obtaining a
00007  * copy of this software and associated documentation files (the
00008  * "Software"), to deal in the Software without restriction, including
00009  * without limitation the rights to use, copy, modify, merge, publish,
00010  * distribute, sub license, and/or sell copies of the Software, and to
00011  * permit persons to whom the Software is furnished to do so, subject to
00012  * the following conditions:
00013  * 
00014  * The above copyright notice and this permission notice (including the
00015  * next paragraph) shall be included in all copies or substantial portions
00016  * of the Software.
00017  * 
00018  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00019  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00020  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
00021  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
00022  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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00024  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00025  * 
00026  **************************************************************************/
00027 
00028 
00029 #ifndef ST_FORMAT_H
00030 #define ST_FORMAT_H
00031 
00032 
00033 struct pipe_format_info
00034 {
00035    enum pipe_format format;
00036    GLenum base_format;
00037    GLenum datatype;
00038    GLubyte red_bits;
00039    GLubyte green_bits;
00040    GLubyte blue_bits;
00041    GLubyte alpha_bits;
00042    GLubyte luminance_bits;
00043    GLubyte intensity_bits;
00044    GLubyte depth_bits;
00045    GLubyte stencil_bits;
00046    GLubyte size;           
00047 };
00048 
00049 
00050 GLboolean
00051 st_get_format_info(enum pipe_format format, struct pipe_format_info *pinfo);
00052 
00053 
00054 extern GLuint
00055 st_sizeof_format(enum pipe_format format);
00056 
00057 
00058 extern GLenum
00059 st_format_datatype(enum pipe_format format);
00060 
00061 
00062 extern enum pipe_format
00063 st_mesa_format_to_pipe_format(GLuint mesaFormat);
00064 
00065 
00066 extern enum pipe_format
00067 st_choose_format(struct pipe_context *pipe, GLint internalFormat,
00068                  enum pipe_texture_target target, unsigned tex_usage);
00069 
00070 extern enum pipe_format
00071 st_choose_renderbuffer_format(struct pipe_context *pipe, GLint internalFormat);
00072 
00073 
00074 extern const struct gl_texture_format *
00075 st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
00076                        GLenum format, GLenum type);
00077 
00078 
00079 #endif /* ST_CB_TEXIMAGE_H */

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