src/mesa/main/image.h

   1 /**
   2  * \file image.h
   3  * Image handling.
   4  */
   5
   6 /*
   7  * Mesa 3-D graphics library
   8  * Version:  6.3
   9  *
  10  * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a
  13  * copy of this software and associated documentation files (the "Software"),
  14  * to deal in the Software without restriction, including without limitation
  15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16  * and/or sell copies of the Software, and to permit persons to whom the
  17  * Software is furnished to do so, subject to the following conditions:
  18  *
  19  * The above copyright notice and this permission notice shall be included
  20  * in all copies or substantial portions of the Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  23  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  25  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  26  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  27  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28  */
  29
  30
  31 #ifndef IMAGE_H
  32 #define IMAGE_H
  33
  34
  35 #include "mtypes.h"
  36
  37
  38 extern void
  39 _mesa_swap2( GLushort *p, GLuint n );
  40
  41 extern void
  42 _mesa_swap4( GLuint *p, GLuint n );
  43
  44 extern GLint
  45 _mesa_sizeof_type( GLenum type );
  46
  47 extern GLint
  48 _mesa_sizeof_packed_type( GLenum type );
  49
  50 extern GLint
  51 _mesa_components_in_format( GLenum format );
  52
  53 extern GLint
  54 _mesa_bytes_per_pixel( GLenum format, GLenum type );
  55
  56 extern GLboolean
  57 _mesa_is_legal_format_and_type( GLcontext *ctx, GLenum format, GLenum type );
  58
  59
  60 extern GLvoid *
  61 _mesa_image_address( GLuint dimensions,
  62                      const struct gl_pixelstore_attrib *packing,
  63                      const GLvoid *image,
  64                      GLsizei width, GLsizei height,
  65                      GLenum format, GLenum type,
  66                      GLint img, GLint row, GLint column );
  67
  68 extern GLvoid *
  69 _mesa_image_address1d( const struct gl_pixelstore_attrib *packing,
  70                        const GLvoid *image,
  71                        GLsizei width,
  72                        GLenum format, GLenum type,
  73                        GLint column );
  74
  75 extern GLvoid *
  76 _mesa_image_address2d( const struct gl_pixelstore_attrib *packing,
  77                        const GLvoid *image,
  78                        GLsizei width, GLsizei height,
  79                        GLenum format, GLenum type,
  80                        GLint row, GLint column );
  81
  82 extern GLvoid *
  83 _mesa_image_address3d( const struct gl_pixelstore_attrib *packing,
  84                        const GLvoid *image,
  85                        GLsizei width, GLsizei height,
  86                        GLenum format, GLenum type,
  87                        GLint img, GLint row, GLint column );
  88
  89
  90 extern GLint
  91 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
  92                         GLint width, GLenum format, GLenum type );
  93
  94
  95 extern GLint
  96 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
  97                           GLint width, GLint height,
  98                           GLenum format, GLenum type );
  99
 100 extern void
 101 _mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
 102                               const struct gl_pixelstore_attrib *unpacking );
 103
 104
 105 extern void
 106 _mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
 107                             const struct gl_pixelstore_attrib *packing );
 108
 109
 110 extern GLvoid *
 111 _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
 112                      const struct gl_pixelstore_attrib *packing );
 113
 114 extern void
 115 _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
 116                    GLubyte *dest, const struct gl_pixelstore_attrib *packing );
 117
 118
 119 extern void
 120 _mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLuint transferOps,
 121                               GLuint n, GLfloat rgba[][4]);
 122
 123 extern void
 124 _mesa_pack_rgba_span_float( GLcontext *ctx,
 125                             GLuint n, CONST GLfloat rgba[][4],
 126                             GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 127                             const struct gl_pixelstore_attrib *dstPacking,
 128                             GLuint transferOps );
 129
 130
 131 extern void
 132 _mesa_pack_rgba_span_chan( GLcontext *ctx,
 133                            GLuint n, CONST GLchan rgba[][4],
 134                            GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 135                            const struct gl_pixelstore_attrib *dstPacking,
 136                            GLuint transferOps );
 137
 138
 139 extern void
 140 _mesa_unpack_color_span_chan( GLcontext *ctx,
 141                               GLuint n, GLenum dstFormat, GLchan dest[],
 142                               GLenum srcFormat, GLenum srcType,
 143                               const GLvoid *source,
 144                               const struct gl_pixelstore_attrib *srcPacking,
 145                               GLuint transferOps );
 146
 147
 148 extern void
 149 _mesa_unpack_color_span_float( GLcontext *ctx,
 150                                GLuint n, GLenum dstFormat, GLfloat dest[],
 151                                GLenum srcFormat, GLenum srcType,
 152                                const GLvoid *source,
 153                                const struct gl_pixelstore_attrib *srcPacking,
 154                                GLuint transferOps );
 155
 156
 157 extern void
 158 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
 159                          GLenum dstType, GLvoid *dest,
 160                          GLenum srcType, const GLvoid *source,
 161                          const struct gl_pixelstore_attrib *srcPacking,
 162                          GLuint transferOps );
 163
 164
 165 extern void
 166 _mesa_pack_index_span( const GLcontext *ctx, GLuint n,
 167                        GLenum dstType, GLvoid *dest, const GLuint *source,
 168                        const struct gl_pixelstore_attrib *dstPacking,
 169                        GLuint transferOps );
 170
 171
 172 extern void
 173 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 174                            GLenum dstType, GLvoid *dest,
 175                            GLenum srcType, const GLvoid *source,
 176                            const struct gl_pixelstore_attrib *srcPacking,
 177                            GLuint transferOps );
 178
 179 extern void
 180 _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
 181                          GLenum dstType, GLvoid *dest, const GLstencil *source,
 182                          const struct gl_pixelstore_attrib *dstPacking );
 183
 184
 185 extern void
 186 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
 187                          GLenum srcType, const GLvoid *source,
 188                          const struct gl_pixelstore_attrib *srcPacking );
 189
 190 extern void
 191 _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
 192                        GLenum dstType, const GLfloat *depthSpan,
 193                        const struct gl_pixelstore_attrib *dstPacking );
 194
 195
 196 extern void *
 197 _mesa_unpack_image( GLuint dimensions,
 198                     GLsizei width, GLsizei height, GLsizei depth,
 199                     GLenum format, GLenum type, const GLvoid *pixels,
 200                     const struct gl_pixelstore_attrib *unpack );
 201
 202
 203 extern GLboolean
 204 _mesa_clip_drawpixels(const GLcontext *ctx,
 205                       GLint *destX, GLint *destY,
 206                       GLsizei *width, GLsizei *height,
 207                       GLint *skipPixels, GLint *skipRows);
 208
 209
 210 extern GLboolean
 211 _mesa_clip_readpixels(const GLcontext *ctx,
 212                       GLint *destX, GLint *destY,
 213                       GLsizei *width, GLsizei *height,
 214                       GLint *skipPixels, GLint *skipRows);
 215
 216
 217 #endif