src/mesa/main/image.h

   1 /* $Id: image.h,v 1.3 1999/11/11 01:22:27 brianp 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 #ifndef IMAGE_H
  29 #define IMAGE_H
  30
  31
  32 #include "types.h"
  33
  34
  35 extern struct gl_pixelstore_attrib _mesa_native_packing;
  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 void
  65 gl_unpack_polygon_stipple( const GLcontext *ctx,
  66                            const GLubyte *pattern,
  67                            GLuint dest[32] );
  68
  69
  70 extern void
  71 gl_pack_polygon_stipple( const GLcontext *ctx,
  72                          const GLuint pattern[32],
  73                          GLubyte *dest );
  74
  75
  76 extern void
  77 gl_pack_rgba_span( const GLcontext *ctx,
  78                    GLuint n, CONST GLubyte rgba[][4],
  79                    GLenum format, GLenum type, GLvoid *dest,
  80                    const struct gl_pixelstore_attrib *packing,
  81                    GLboolean applyTransferOps );
  82
  83
  84 extern void
  85 _mesa_unpack_ubyte_color_span( const GLcontext *ctx,
  86                                GLuint n, GLenum dstFormat, GLubyte dest[],
  87                                GLenum srcFormat, GLenum srcType,
  88                                const GLvoid *source,
  89                                const struct gl_pixelstore_attrib *unpacking,
  90                                GLboolean applyTransferOps );
  91
  92
  93 extern void
  94 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
  95                          GLenum dstType, GLvoid *dest,
  96                          GLenum srcType, const GLvoid *source,
  97                          const struct gl_pixelstore_attrib *unpacking,
  98                          GLboolean applyTransferOps );
  99
 100
 101 extern void
 102 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 103                            GLenum dstType, GLvoid *dest,
 104                            GLenum srcType, const GLvoid *source,
 105                            const struct gl_pixelstore_attrib *unpacking,
 106                            GLboolean applyTransferOps );
 107
 108
 109 extern void
 110 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLdepth *dest,
 111                          GLenum srcType, const GLvoid *source,
 112                          const struct gl_pixelstore_attrib *unpacking,
 113                          GLboolean applyTransferOps );
 114
 115
 116 extern void *
 117 _mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
 118                     GLenum format, GLenum type, const GLvoid *pixels,
 119                     const struct gl_pixelstore_attrib *unpack );
 120
 121
 122 extern GLvoid *
 123 _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
 124                      const struct gl_pixelstore_attrib *packing );
 125
 126
 127 #endif