src/mesa/main/image.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.1
   4  *
   5  * Copyright (C) 1999-2008  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
  26 #ifndef IMAGE_H
  27 #define IMAGE_H
  28
  29
  30 #include "glheader.h"
  31
  32 struct gl_context;
  33 struct gl_pixelstore_attrib;
  34
  35 extern void
  36 _mesa_swap2( GLushort *p, GLuint n );
  37
  38 extern void
  39 _mesa_swap4( GLuint *p, GLuint n );
  40
  41 extern GLenum
  42 _mesa_error_check_format_and_type(const struct gl_context *ctx,
  43                                   GLenum format, GLenum type);
  44
  45 extern GLintptr
  46 _mesa_image_offset( GLuint dimensions,
  47                     const struct gl_pixelstore_attrib *packing,
  48                     GLsizei width, GLsizei height,
  49                     GLenum format, GLenum type,
  50                     GLint img, GLint row, GLint column );
  51
  52 extern GLvoid *
  53 _mesa_image_address( GLuint dimensions,
  54                      const struct gl_pixelstore_attrib *packing,
  55                      const GLvoid *image,
  56                      GLsizei width, GLsizei height,
  57                      GLenum format, GLenum type,
  58                      GLint img, GLint row, GLint column );
  59
  60 extern GLvoid *
  61 _mesa_image_address1d( const struct gl_pixelstore_attrib *packing,
  62                        const GLvoid *image,
  63                        GLsizei width,
  64                        GLenum format, GLenum type,
  65                        GLint column );
  66
  67 extern GLvoid *
  68 _mesa_image_address2d( const struct gl_pixelstore_attrib *packing,
  69                        const GLvoid *image,
  70                        GLsizei width, GLsizei height,
  71                        GLenum format, GLenum type,
  72                        GLint row, GLint column );
  73
  74 extern GLvoid *
  75 _mesa_image_address3d( const struct gl_pixelstore_attrib *packing,
  76                        const GLvoid *image,
  77                        GLsizei width, GLsizei height,
  78                        GLenum format, GLenum type,
  79                        GLint img, GLint row, GLint column );
  80
  81
  82 extern GLint
  83 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
  84                         GLint width, GLenum format, GLenum type );
  85
  86
  87 extern GLint
  88 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
  89                           GLint width, GLint height,
  90                           GLenum format, GLenum type );
  91
  92
  93 extern void
  94 _mesa_expand_bitmap(GLsizei width, GLsizei height,
  95                     const struct gl_pixelstore_attrib *unpack,
  96                     const GLubyte *bitmap,
  97                     GLubyte *destBuffer, GLint destStride,
  98                     GLubyte onValue);
  99
 100
 101 extern void
 102 _mesa_convert_colors(GLenum srcType, const GLvoid *src,
 103                      GLenum dstType, GLvoid *dst,
 104                      GLuint count, const GLubyte mask[]);
 105
 106
 107 extern GLboolean
 108 _mesa_clip_drawpixels(const struct gl_context *ctx,
 109                       GLint *destX, GLint *destY,
 110                       GLsizei *width, GLsizei *height,
 111                       struct gl_pixelstore_attrib *unpack);
 112
 113
 114 extern GLboolean
 115 _mesa_clip_readpixels(const struct gl_context *ctx,
 116                       GLint *srcX, GLint *srcY,
 117                       GLsizei *width, GLsizei *height,
 118                       struct gl_pixelstore_attrib *pack);
 119
 120 extern GLboolean
 121 _mesa_clip_copytexsubimage(const struct gl_context *ctx,
 122                            GLint *destX, GLint *destY,
 123                            GLint *srcX, GLint *srcY,
 124                            GLsizei *width, GLsizei *height);
 125
 126 extern GLboolean
 127 _mesa_clip_to_region(GLint xmin, GLint ymin,
 128                      GLint xmax, GLint ymax,
 129                      GLint *x, GLint *y,
 130                      GLsizei *width, GLsizei *height );
 131
 132 extern GLboolean
 133 _mesa_clip_blit(struct gl_context *ctx,
 134                 GLint *srcX0, GLint *srcY0, GLint *srcX1, GLint *srcY1,
 135                 GLint *dstX0, GLint *dstY0, GLint *dstX1, GLint *dstY1);
 136
 137
 138 #endif