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  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 #ifndef IMAGE_H
  28 #define IMAGE_H
  29
  30
  31 #include "glheader.h"
  32
  33 struct gl_context;
  34 struct gl_pixelstore_attrib;
  35
  36 extern void
  37 _mesa_swap2( GLushort *p, GLuint n );
  38
  39 extern void
  40 _mesa_swap4( GLuint *p, GLuint n );
  41
  42 extern GLintptr
  43 _mesa_image_offset( GLuint dimensions,
  44                     const struct gl_pixelstore_attrib *packing,
  45                     GLsizei width, GLsizei height,
  46                     GLenum format, GLenum type,
  47                     GLint img, GLint row, GLint column );
  48
  49 extern GLvoid *
  50 _mesa_image_address( GLuint dimensions,
  51                      const struct gl_pixelstore_attrib *packing,
  52                      const GLvoid *image,
  53                      GLsizei width, GLsizei height,
  54                      GLenum format, GLenum type,
  55                      GLint img, GLint row, GLint column );
  56
  57 extern GLvoid *
  58 _mesa_image_address1d( const struct gl_pixelstore_attrib *packing,
  59                        const GLvoid *image,
  60                        GLsizei width,
  61                        GLenum format, GLenum type,
  62                        GLint column );
  63
  64 extern GLvoid *
  65 _mesa_image_address2d( const struct gl_pixelstore_attrib *packing,
  66                        const GLvoid *image,
  67                        GLsizei width, GLsizei height,
  68                        GLenum format, GLenum type,
  69                        GLint row, GLint column );
  70
  71 extern GLvoid *
  72 _mesa_image_address3d( const struct gl_pixelstore_attrib *packing,
  73                        const GLvoid *image,
  74                        GLsizei width, GLsizei height,
  75                        GLenum format, GLenum type,
  76                        GLint img, GLint row, GLint column );
  77
  78
  79 extern GLint
  80 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
  81                         GLint width, GLenum format, GLenum type );
  82
  83
  84 extern GLint
  85 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
  86                           GLint width, GLint height,
  87                           GLenum format, GLenum type );
  88
  89
  90 extern void
  91 _mesa_expand_bitmap(GLsizei width, GLsizei height,
  92                     const struct gl_pixelstore_attrib *unpack,
  93                     const GLubyte *bitmap,
  94                     GLubyte *destBuffer, GLint destStride,
  95                     GLubyte onValue);
  96
  97
  98 extern void
  99 _mesa_convert_colors(GLenum srcType, const GLvoid *src,
 100                      GLenum dstType, GLvoid *dst,
 101                      GLuint count, const GLubyte mask[]);
 102
 103
 104 extern GLboolean
 105 _mesa_clip_drawpixels(const struct gl_context *ctx,
 106                       GLint *destX, GLint *destY,
 107                       GLsizei *width, GLsizei *height,
 108                       struct gl_pixelstore_attrib *unpack);
 109
 110
 111 extern GLboolean
 112 _mesa_clip_readpixels(const struct gl_context *ctx,
 113                       GLint *srcX, GLint *srcY,
 114                       GLsizei *width, GLsizei *height,
 115                       struct gl_pixelstore_attrib *pack);
 116
 117 extern GLboolean
 118 _mesa_clip_copytexsubimage(const struct gl_context *ctx,
 119                            GLint *destX, GLint *destY,
 120                            GLint *srcX, GLint *srcY,
 121                            GLsizei *width, GLsizei *height);
 122
 123 extern GLboolean
 124 _mesa_clip_to_region(GLint xmin, GLint ymin,
 125                      GLint xmax, GLint ymax,
 126                      GLint *x, GLint *y,
 127                      GLsizei *width, GLsizei *height );
 128
 129 extern GLboolean
 130 _mesa_clip_blit(struct gl_context *ctx,
 131                 GLint *srcX0, GLint *srcY0, GLint *srcX1, GLint *srcY1,
 132                 GLint *dstX0, GLint *dstY0, GLint *dstX1, GLint *dstY1);
 133
 134
 135 #endif