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 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 /** \name Pixel processing functions */
 115 /*@{*/
 116
 117 extern void
 118 _mesa_scale_and_bias_rgba(GLuint n, GLfloat rgba[][4],
 119                           GLfloat rScale, GLfloat gScale,
 120                           GLfloat bScale, GLfloat aScale,
 121                           GLfloat rBias, GLfloat gBias,
 122                           GLfloat bBias, GLfloat aBias);
 123
 124 extern void
 125 _mesa_map_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4]);
 126
 127
 128 extern void
 129 _mesa_transform_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4]);
 130
 131
 132 extern void
 133 _mesa_lookup_rgba_float(const struct gl_color_table *table,
 134                         GLuint n, GLfloat rgba[][4]);
 135
 136 extern void
 137 _mesa_lookup_rgba_ubyte(const struct gl_color_table *table,
 138                         GLuint n, GLubyte rgba[][4]);
 139
 140
 141 extern void
 142 _mesa_map_ci_to_rgba(const GLcontext *ctx,
 143                      GLuint n, const GLuint index[], GLfloat rgba[][4]);
 144
 145
 146 extern void
 147 _mesa_map_ci8_to_rgba8(const GLcontext *ctx, GLuint n, const GLubyte index[],
 148                        GLubyte rgba[][4]);
 149
 150
 151 extern void
 152 _mesa_scale_and_bias_depth(const GLcontext *ctx, GLuint n,
 153                            GLfloat depthValues[]);
 154
 155 extern void
 156 _mesa_scale_and_bias_depth_uint(const GLcontext *ctx, GLuint n,
 157                                 GLuint depthValues[]);
 158
 159 extern void
 160 _mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLbitfield transferOps,
 161                               GLuint n, GLfloat rgba[][4]);
 162
 163
 164 extern void
 165 _mesa_apply_ci_transfer_ops(const GLcontext *ctx, GLbitfield transferOps,
 166                             GLuint n, GLuint indexes[]);
 167
 168
 169 extern void
 170 _mesa_apply_stencil_transfer_ops(const GLcontext *ctx, GLuint n,
 171                                  GLstencil stencil[]);
 172
 173
 174 extern void
 175 _mesa_pack_rgba_span_float( GLcontext *ctx, GLuint n, GLfloat rgba[][4],
 176                             GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 177                             const struct gl_pixelstore_attrib *dstPacking,
 178                             GLbitfield transferOps );
 179
 180
 181 extern void
 182 _mesa_unpack_color_span_chan( GLcontext *ctx,
 183                               GLuint n, GLenum dstFormat, GLchan dest[],
 184                               GLenum srcFormat, GLenum srcType,
 185                               const GLvoid *source,
 186                               const struct gl_pixelstore_attrib *srcPacking,
 187                               GLbitfield transferOps );
 188
 189
 190 extern void
 191 _mesa_unpack_color_span_float( GLcontext *ctx,
 192                                GLuint n, GLenum dstFormat, GLfloat dest[],
 193                                GLenum srcFormat, GLenum srcType,
 194                                const GLvoid *source,
 195                                const struct gl_pixelstore_attrib *srcPacking,
 196                                GLbitfield transferOps );
 197
 198
 199 extern void
 200 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
 201                          GLenum dstType, GLvoid *dest,
 202                          GLenum srcType, const GLvoid *source,
 203                          const struct gl_pixelstore_attrib *srcPacking,
 204                          GLbitfield transferOps );
 205
 206
 207 extern void
 208 _mesa_pack_index_span( const GLcontext *ctx, GLuint n,
 209                        GLenum dstType, GLvoid *dest, const GLuint *source,
 210                        const struct gl_pixelstore_attrib *dstPacking,
 211                        GLbitfield transferOps );
 212
 213
 214 extern void
 215 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 216                            GLenum dstType, GLvoid *dest,
 217                            GLenum srcType, const GLvoid *source,
 218                            const struct gl_pixelstore_attrib *srcPacking,
 219                            GLbitfield transferOps );
 220
 221 extern void
 222 _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
 223                          GLenum dstType, GLvoid *dest, const GLstencil *source,
 224                          const struct gl_pixelstore_attrib *dstPacking );
 225
 226
 227 extern void
 228 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
 229                          GLenum dstType, GLvoid *dest, GLuint depthMax,
 230                          GLenum srcType, const GLvoid *source,
 231                          const struct gl_pixelstore_attrib *srcPacking );
 232
 233 extern void
 234 _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
 235                        GLenum dstType, const GLfloat *depthSpan,
 236                        const struct gl_pixelstore_attrib *dstPacking );
 237
 238
 239 extern void
 240 _mesa_pack_depth_stencil_span(const GLcontext *ctx, GLuint n, GLuint *dest,
 241                               const GLfloat *depthVals,
 242                               const GLstencil *stencilVals,
 243                               const struct gl_pixelstore_attrib *dstPacking);
 244
 245
 246 extern void *
 247 _mesa_unpack_image( GLuint dimensions,
 248                     GLsizei width, GLsizei height, GLsizei depth,
 249                     GLenum format, GLenum type, const GLvoid *pixels,
 250                     const struct gl_pixelstore_attrib *unpack );
 251
 252
 253 extern void
 254 _mesa_convert_colors(GLenum srcType, const GLvoid *src,
 255                      GLenum dstType, GLvoid *dst,
 256                      GLuint count, const GLubyte mask[]);
 257
 258
 259 extern GLboolean
 260 _mesa_clip_drawpixels(const GLcontext *ctx,
 261                       GLint *destX, GLint *destY,
 262                       GLsizei *width, GLsizei *height,
 263                       struct gl_pixelstore_attrib *unpack);
 264
 265
 266 extern GLboolean
 267 _mesa_clip_readpixels(const GLcontext *ctx,
 268                       GLint *destX, GLint *destY,
 269                       GLsizei *width, GLsizei *height,
 270                       struct gl_pixelstore_attrib *pack);
 271
 272 extern GLboolean
 273 _mesa_clip_copytexsubimage(const GLcontext *ctx,
 274                            GLint *destX, GLint *destY,
 275                            GLint *srcX, GLint *srcY,
 276                            GLsizei *width, GLsizei *height);
 277
 278 extern GLboolean
 279 _mesa_clip_to_region(GLint xmin, GLint ymin,
 280                      GLint xmax, GLint ymax,
 281                      GLint *x, GLint *y,
 282                      GLsizei *width, GLsizei *height );
 283
 284 #endif