src/mesa/main/image.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5.2
   4  *
   5  * Copyright (C) 1999-2006  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 GLint
  40 _mesa_sizeof_type( GLenum type );
  41
  42 extern GLint
  43 _mesa_sizeof_packed_type( GLenum type );
  44
  45 extern GLint
  46 _mesa_components_in_format( GLenum format );
  47
  48 extern GLint
  49 _mesa_bytes_per_pixel( GLenum format, GLenum type );
  50
  51 extern GLboolean
  52 _mesa_is_legal_format_and_type( GLcontext *ctx, GLenum format, GLenum type );
  53
  54
  55 extern GLvoid *
  56 _mesa_image_address( GLuint dimensions,
  57                      const struct gl_pixelstore_attrib *packing,
  58                      const GLvoid *image,
  59                      GLsizei width, GLsizei height,
  60                      GLenum format, GLenum type,
  61                      GLint img, GLint row, GLint column );
  62
  63 extern GLvoid *
  64 _mesa_image_address1d( const struct gl_pixelstore_attrib *packing,
  65                        const GLvoid *image,
  66                        GLsizei width,
  67                        GLenum format, GLenum type,
  68                        GLint column );
  69
  70 extern GLvoid *
  71 _mesa_image_address2d( const struct gl_pixelstore_attrib *packing,
  72                        const GLvoid *image,
  73                        GLsizei width, GLsizei height,
  74                        GLenum format, GLenum type,
  75                        GLint row, GLint column );
  76
  77 extern GLvoid *
  78 _mesa_image_address3d( const struct gl_pixelstore_attrib *packing,
  79                        const GLvoid *image,
  80                        GLsizei width, GLsizei height,
  81                        GLenum format, GLenum type,
  82                        GLint img, GLint row, GLint column );
  83
  84
  85 extern GLint
  86 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
  87                         GLint width, GLenum format, GLenum type );
  88
  89
  90 extern GLint
  91 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
  92                           GLint width, GLint height,
  93                           GLenum format, GLenum type );
  94
  95 extern void
  96 _mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
  97                               const struct gl_pixelstore_attrib *unpacking );
  98
  99
 100 extern void
 101 _mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
 102                             const struct gl_pixelstore_attrib *packing );
 103
 104
 105 extern GLvoid *
 106 _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
 107                      const struct gl_pixelstore_attrib *packing );
 108
 109 extern void
 110 _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
 111                    GLubyte *dest, const struct gl_pixelstore_attrib *packing );
 112
 113
 114 extern void
 115 _mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLuint transferOps,
 116                               GLuint n, GLfloat rgba[][4]);
 117
 118 extern void
 119 _mesa_pack_rgba_span_float( GLcontext *ctx,
 120                             GLuint n, CONST GLfloat rgba[][4],
 121                             GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 122                             const struct gl_pixelstore_attrib *dstPacking,
 123                             GLuint transferOps );
 124
 125
 126 extern void
 127 _mesa_pack_rgba_span_chan( GLcontext *ctx,
 128                            GLuint n, CONST GLchan rgba[][4],
 129                            GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 130                            const struct gl_pixelstore_attrib *dstPacking,
 131                            GLuint transferOps );
 132
 133
 134 extern void
 135 _mesa_unpack_color_span_chan( GLcontext *ctx,
 136                               GLuint n, GLenum dstFormat, GLchan dest[],
 137                               GLenum srcFormat, GLenum srcType,
 138                               const GLvoid *source,
 139                               const struct gl_pixelstore_attrib *srcPacking,
 140                               GLuint transferOps );
 141
 142
 143 extern void
 144 _mesa_unpack_color_span_float( GLcontext *ctx,
 145                                GLuint n, GLenum dstFormat, GLfloat dest[],
 146                                GLenum srcFormat, GLenum srcType,
 147                                const GLvoid *source,
 148                                const struct gl_pixelstore_attrib *srcPacking,
 149                                GLuint transferOps );
 150
 151
 152 extern void
 153 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
 154                          GLenum dstType, GLvoid *dest,
 155                          GLenum srcType, const GLvoid *source,
 156                          const struct gl_pixelstore_attrib *srcPacking,
 157                          GLuint transferOps );
 158
 159
 160 extern void
 161 _mesa_pack_index_span( const GLcontext *ctx, GLuint n,
 162                        GLenum dstType, GLvoid *dest, const GLuint *source,
 163                        const struct gl_pixelstore_attrib *dstPacking,
 164                        GLuint transferOps );
 165
 166
 167 extern void
 168 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 169                            GLenum dstType, GLvoid *dest,
 170                            GLenum srcType, const GLvoid *source,
 171                            const struct gl_pixelstore_attrib *srcPacking,
 172                            GLuint transferOps );
 173
 174 extern void
 175 _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
 176                          GLenum dstType, GLvoid *dest, const GLstencil *source,
 177                          const struct gl_pixelstore_attrib *dstPacking );
 178
 179
 180 extern void
 181 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
 182                          GLenum dstType, GLvoid *dest, GLfloat depthScale,
 183                          GLenum srcType, const GLvoid *source,
 184                          const struct gl_pixelstore_attrib *srcPacking );
 185
 186 extern void
 187 _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
 188                        GLenum dstType, const GLfloat *depthSpan,
 189                        const struct gl_pixelstore_attrib *dstPacking );
 190
 191
 192 extern void
 193 _mesa_pack_depth_stencil_span(const GLcontext *ctx, GLuint n, GLuint *dest,
 194                               const GLfloat *depthVals,
 195                               const GLstencil *stencilVals,
 196                               const struct gl_pixelstore_attrib *dstPacking);
 197
 198
 199 extern void *
 200 _mesa_unpack_image( GLuint dimensions,
 201                     GLsizei width, GLsizei height, GLsizei depth,
 202                     GLenum format, GLenum type, const GLvoid *pixels,
 203                     const struct gl_pixelstore_attrib *unpack );
 204
 205
 206 extern void
 207 _mesa_convert_colors(GLenum srcType, const GLvoid *src,
 208                      GLenum dstType, GLvoid *dst,
 209                      GLuint count, const GLubyte mask[]);
 210
 211
 212 extern GLboolean
 213 _mesa_clip_drawpixels(const GLcontext *ctx,
 214                       GLint *destX, GLint *destY,
 215                       GLsizei *width, GLsizei *height,
 216                       struct gl_pixelstore_attrib *unpack);
 217
 218
 219 extern GLboolean
 220 _mesa_clip_readpixels(const GLcontext *ctx,
 221                       GLint *destX, GLint *destY,
 222                       GLsizei *width, GLsizei *height,
 223                       struct gl_pixelstore_attrib *pack);
 224
 225 extern GLboolean
 226 _mesa_clip_to_region(GLint xmin, GLint ymin,
 227                      GLint xmax, GLint ymax,
 228                      GLint *x, GLint *y,
 229                      GLsizei *width, GLsizei *height );
 230
 231 #endif