src/mesa/main/image.h

   1 /* $Id: image.h,v 1.1 1999/08/19 00:55:41 jtg Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.1
   6  *
   7  * Copyright (C) 1999  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28
  29
  30
  31 #ifndef IMAGE_H
  32 #define IMAGE_H
  33
  34
  35 #include "types.h"
  36
  37
  38 extern void gl_flip_bytes( GLubyte *p, GLuint n );
  39
  40
  41 extern void gl_swap2( GLushort *p, GLuint n );
  42
  43 extern void gl_swap4( GLuint *p, GLuint n );
  44
  45
  46 extern GLint gl_sizeof_type( GLenum type );
  47
  48 extern GLint gl_sizeof_packed_type( GLenum type );
  49
  50 extern GLint gl_components_in_format( GLenum format );
  51
  52 extern GLint gl_bytes_per_pixel( GLenum format, GLenum type );
  53
  54 extern GLboolean gl_is_legal_format_and_type( GLenum format, GLenum type );
  55
  56
  57 extern GLvoid *
  58 gl_pixel_addr_in_image( const struct gl_pixelstore_attrib *packing,
  59                         const GLvoid *image, GLsizei width,
  60                         GLsizei height, GLenum format, GLenum type,
  61                         GLint img, GLint row, GLint column );
  62
  63
  64 extern struct gl_image *
  65 gl_unpack_bitmap( GLcontext *ctx, GLsizei width, GLsizei height,
  66                   const GLubyte *bitmap,
  67                   const struct gl_pixelstore_attrib *packing );
  68
  69
  70 extern void gl_unpack_polygon_stipple( const GLcontext *ctx,
  71                                        const GLubyte *pattern,
  72                                        GLuint dest[32] );
  73
  74
  75 extern void gl_pack_polygon_stipple( const GLcontext *ctx,
  76                                      const GLuint pattern[32],
  77                                      GLubyte *dest );
  78
  79
  80 extern struct gl_image *
  81 gl_unpack_image( GLcontext *ctx, GLint width, GLint height,
  82                  GLenum srcFormat, GLenum srcType, const GLvoid *pixels,
  83                  const struct gl_pixelstore_attrib *packing );
  84
  85
  86
  87 struct gl_image *
  88 gl_unpack_image3D( GLcontext *ctx, GLint width, GLint height,GLint depth,
  89                    GLenum srcFormat, GLenum srcType, const GLvoid *pixels,
  90                    const struct gl_pixelstore_attrib *packing );
  91
  92
  93 extern void
  94 gl_pack_rgba_span( const GLcontext *ctx,
  95                    GLuint n, CONST GLubyte rgba[][4],
  96                    GLenum format, GLenum type, GLvoid *dest,
  97                    const struct gl_pixelstore_attrib *packing,
  98                    GLboolean applyTransferOps );
  99
 100
 101 extern void gl_free_image( struct gl_image *image );
 102
 103
 104 extern GLboolean gl_image_error_test( GLcontext *ctx,
 105                                       const struct gl_image *image,
 106                                       const char *msg );
 107
 108
 109 #endif