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 "mtypes.h"
  31
  32
  33 extern void
  34 _mesa_swap2( GLushort *p, GLuint n );
  35
  36 extern void
  37 _mesa_swap4( GLuint *p, GLuint n );
  38
  39 extern GLboolean
  40 _mesa_type_is_packed(GLenum type);
  41
  42 extern GLint
  43 _mesa_sizeof_type( GLenum type );
  44
  45 extern GLint
  46 _mesa_sizeof_packed_type( GLenum type );
  47
  48 extern GLint
  49 _mesa_components_in_format( GLenum format );
  50
  51 extern GLint
  52 _mesa_bytes_per_pixel( GLenum format, GLenum type );
  53
  54 extern GLboolean
  55 _mesa_is_legal_format_and_type( struct gl_context *ctx, GLenum format, GLenum type );
  56
  57 extern GLboolean
  58 _mesa_is_color_format(GLenum format);
  59
  60 extern GLboolean
  61 _mesa_is_index_format(GLenum format);
  62
  63 extern GLboolean
  64 _mesa_is_depth_format(GLenum format);
  65
  66 extern GLboolean
  67 _mesa_is_stencil_format(GLenum format);
  68
  69 extern GLboolean
  70 _mesa_is_ycbcr_format(GLenum format);
  71
  72 extern GLboolean
  73 _mesa_is_depthstencil_format(GLenum format);
  74
  75 extern GLboolean
  76 _mesa_is_depth_or_stencil_format(GLenum format);
  77
  78 extern GLboolean
  79 _mesa_is_dudv_format(GLenum format);
  80
  81 extern GLboolean
  82 _mesa_is_integer_format(GLenum format);
  83
  84 extern GLboolean
  85 _mesa_is_compressed_format(struct gl_context *ctx, GLenum format);
  86
  87 extern GLvoid *
  88 _mesa_image_address( GLuint dimensions,
  89                      const struct gl_pixelstore_attrib *packing,
  90                      const GLvoid *image,
  91                      GLsizei width, GLsizei height,
  92                      GLenum format, GLenum type,
  93                      GLint img, GLint row, GLint column );
  94
  95 extern GLvoid *
  96 _mesa_image_address1d( const struct gl_pixelstore_attrib *packing,
  97                        const GLvoid *image,
  98                        GLsizei width,
  99                        GLenum format, GLenum type,
 100                        GLint column );
 101
 102 extern GLvoid *
 103 _mesa_image_address2d( const struct gl_pixelstore_attrib *packing,
 104                        const GLvoid *image,
 105                        GLsizei width, GLsizei height,
 106                        GLenum format, GLenum type,
 107                        GLint row, GLint column );
 108
 109 extern GLvoid *
 110 _mesa_image_address3d( const struct gl_pixelstore_attrib *packing,
 111                        const GLvoid *image,
 112                        GLsizei width, GLsizei height,
 113                        GLenum format, GLenum type,
 114                        GLint img, GLint row, GLint column );
 115
 116
 117 extern GLint
 118 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
 119                         GLint width, GLenum format, GLenum type );
 120
 121
 122 extern GLint
 123 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
 124                           GLint width, GLint height,
 125                           GLenum format, GLenum type );
 126
 127
 128 extern void
 129 _mesa_expand_bitmap(GLsizei width, GLsizei height,
 130                     const struct gl_pixelstore_attrib *unpack,
 131                     const GLubyte *bitmap,
 132                     GLubyte *destBuffer, GLint destStride,
 133                     GLubyte onValue);
 134
 135
 136 extern void
 137 _mesa_convert_colors(GLenum srcType, const GLvoid *src,
 138                      GLenum dstType, GLvoid *dst,
 139                      GLuint count, const GLubyte mask[]);
 140
 141
 142 extern GLboolean
 143 _mesa_clip_drawpixels(const struct gl_context *ctx,
 144                       GLint *destX, GLint *destY,
 145                       GLsizei *width, GLsizei *height,
 146                       struct gl_pixelstore_attrib *unpack);
 147
 148
 149 extern GLboolean
 150 _mesa_clip_readpixels(const struct gl_context *ctx,
 151                       GLint *srcX, GLint *srcY,
 152                       GLsizei *width, GLsizei *height,
 153                       struct gl_pixelstore_attrib *pack);
 154
 155 extern GLboolean
 156 _mesa_clip_copytexsubimage(const struct gl_context *ctx,
 157                            GLint *destX, GLint *destY,
 158                            GLint *srcX, GLint *srcY,
 159                            GLsizei *width, GLsizei *height);
 160
 161 extern GLboolean
 162 _mesa_clip_to_region(GLint xmin, GLint ymin,
 163                      GLint xmax, GLint ymax,
 164                      GLint *x, GLint *y,
 165                      GLsizei *width, GLsizei *height );
 166
 167 extern GLboolean
 168 _mesa_clip_blit(struct gl_context *ctx,
 169                 GLint *srcX0, GLint *srcY0, GLint *srcX1, GLint *srcY1,
 170                 GLint *dstX0, GLint *dstY0, GLint *dstX1, GLint *dstY1);
 171
 172
 173 #endif