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      1 /*
      2  * Mesa 3-D graphics library
      3  * Version:  6.5.1
      4  *
      5  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the "Software"),
      9  * to deal in the Software without restriction, including without limitation
     10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     11  * and/or sell copies of the Software, and to permit persons to whom the
     12  * Software is furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice shall be included
     15  * in all copies or substantial portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 
     25 #ifndef TEXCOMPRESS_H
     26 #define TEXCOMPRESS_H
     27 
     28 #include "formats.h"
     29 #include "glheader.h"
     30 #include "mfeatures.h"
     31 
     32 struct gl_context;
     33 
     34 #if _HAVE_FULL_GL
     35 
     36 extern GLenum
     37 _mesa_gl_compressed_format_base_format(GLenum format);
     38 
     39 extern GLuint
     40 _mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats);
     41 
     42 extern gl_format
     43 _mesa_glenum_to_compressed_format(GLenum format);
     44 
     45 extern GLenum
     46 _mesa_compressed_format_to_glenum(struct gl_context *ctx, gl_format mesaFormat);
     47 
     48 extern GLubyte *
     49 _mesa_compressed_image_address(GLint col, GLint row, GLint img,
     50                                gl_format mesaFormat,
     51                                GLsizei width, const GLubyte *image);
     52 
     53 extern void
     54 _mesa_decompress_image(gl_format format, GLuint width, GLuint height,
     55                        const GLubyte *src, GLint srcRowStride,
     56                        GLfloat *dest);
     57 
     58 #else /* _HAVE_FULL_GL */
     59 
     60 /* no-op macros */
     61 #define _mesa_get_compressed_formats( c, f ) 0
     62 #define _mesa_compressed_image_address(c, r, i, f, w, i2 ) 0
     63 #define _mesa_compress_teximage( c, w, h, sF, s, sRS, dF, d, drs ) ((void)0)
     64 
     65 #endif /* _HAVE_FULL_GL */
     66 
     67 #endif /* TEXCOMPRESS_H */
     68