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( GLcontext *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_ycbcr_format(GLenum format);
  68
  69 extern GLboolean
  70 _mesa_is_depthstencil_format(GLenum format);
  71
  72 extern GLboolean
  73 _mesa_is_dudv_format(GLenum format);
  74
  75
  76 extern GLvoid *
  77 _mesa_image_address( GLuint dimensions,
  78                      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 extern GLvoid *
  85 _mesa_image_address1d( const struct gl_pixelstore_attrib *packing,
  86                        const GLvoid *image,
  87                        GLsizei width,
  88                        GLenum format, GLenum type,
  89                        GLint column );
  90
  91 extern GLvoid *
  92 _mesa_image_address2d( const struct gl_pixelstore_attrib *packing,
  93                        const GLvoid *image,
  94                        GLsizei width, GLsizei height,
  95                        GLenum format, GLenum type,
  96                        GLint row, GLint column );
  97
  98 extern GLvoid *
  99 _mesa_image_address3d( const struct gl_pixelstore_attrib *packing,
 100                        const GLvoid *image,
 101                        GLsizei width, GLsizei height,
 102                        GLenum format, GLenum type,
 103                        GLint img, GLint row, GLint column );
 104
 105
 106 extern GLint
 107 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
 108                         GLint width, GLenum format, GLenum type );
 109
 110
 111 extern GLint
 112 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
 113                           GLint width, GLint height,
 114                           GLenum format, GLenum type );
 115
 116 extern void
 117 _mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
 118                               const struct gl_pixelstore_attrib *unpacking );
 119
 120
 121 extern void
 122 _mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
 123                             const struct gl_pixelstore_attrib *packing );
 124
 125
 126 extern GLvoid *
 127 _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
 128                      const struct gl_pixelstore_attrib *packing );
 129
 130 extern void
 131 _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
 132                    GLubyte *dest, const struct gl_pixelstore_attrib *packing );
 133
 134
 135 /** \name Pixel processing functions */
 136 /*@{*/
 137
 138 extern void
 139 _mesa_scale_and_bias_rgba(GLuint n, GLfloat rgba[][4],
 140                           GLfloat rScale, GLfloat gScale,
 141                           GLfloat bScale, GLfloat aScale,
 142                           GLfloat rBias, GLfloat gBias,
 143                           GLfloat bBias, GLfloat aBias);
 144
 145 extern void
 146 _mesa_map_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4]);
 147
 148
 149 extern void
 150 _mesa_transform_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4]);
 151
 152
 153 extern void
 154 _mesa_lookup_rgba_float(const struct gl_color_table *table,
 155                         GLuint n, GLfloat rgba[][4]);
 156
 157 extern void
 158 _mesa_lookup_rgba_ubyte(const struct gl_color_table *table,
 159                         GLuint n, GLubyte rgba[][4]);
 160
 161
 162 extern void
 163 _mesa_map_ci_to_rgba(const GLcontext *ctx,
 164                      GLuint n, const GLuint index[], GLfloat rgba[][4]);
 165
 166
 167 extern void
 168 _mesa_map_ci8_to_rgba8(const GLcontext *ctx, GLuint n, const GLubyte index[],
 169                        GLubyte rgba[][4]);
 170
 171
 172 extern void
 173 _mesa_scale_and_bias_depth(const GLcontext *ctx, GLuint n,
 174                            GLfloat depthValues[]);
 175
 176 extern void
 177 _mesa_scale_and_bias_depth_uint(const GLcontext *ctx, GLuint n,
 178                                 GLuint depthValues[]);
 179
 180 extern void
 181 _mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLbitfield transferOps,
 182                               GLuint n, GLfloat rgba[][4]);
 183
 184
 185 extern void
 186 _mesa_apply_ci_transfer_ops(const GLcontext *ctx, GLbitfield transferOps,
 187                             GLuint n, GLuint indexes[]);
 188
 189
 190 extern void
 191 _mesa_apply_stencil_transfer_ops(const GLcontext *ctx, GLuint n,
 192                                  GLstencil stencil[]);
 193
 194
 195 extern void
 196 _mesa_pack_rgba_span_float( GLcontext *ctx, GLuint n, GLfloat rgba[][4],
 197                             GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 198                             const struct gl_pixelstore_attrib *dstPacking,
 199                             GLbitfield transferOps );
 200
 201
 202 extern void
 203 _mesa_unpack_color_span_chan( GLcontext *ctx,
 204                               GLuint n, GLenum dstFormat, GLchan dest[],
 205                               GLenum srcFormat, GLenum srcType,
 206                               const GLvoid *source,
 207                               const struct gl_pixelstore_attrib *srcPacking,
 208                               GLbitfield transferOps );
 209
 210
 211 extern void
 212 _mesa_unpack_color_span_float( GLcontext *ctx,
 213                                GLuint n, GLenum dstFormat, GLfloat dest[],
 214                                GLenum srcFormat, GLenum srcType,
 215                                const GLvoid *source,
 216                                const struct gl_pixelstore_attrib *srcPacking,
 217                                GLbitfield transferOps );
 218
 219 extern void
 220 _mesa_unpack_dudv_span_byte( GLcontext *ctx,
 221                              GLuint n, GLenum dstFormat, GLbyte dest[],
 222                              GLenum srcFormat, GLenum srcType,
 223                              const GLvoid *source,
 224                              const struct gl_pixelstore_attrib *srcPacking,
 225                              GLbitfield transferOps );
 226
 227 extern void
 228 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
 229                          GLenum dstType, GLvoid *dest,
 230                          GLenum srcType, const GLvoid *source,
 231                          const struct gl_pixelstore_attrib *srcPacking,
 232                          GLbitfield transferOps );
 233
 234
 235 extern void
 236 _mesa_pack_index_span( const GLcontext *ctx, GLuint n,
 237                        GLenum dstType, GLvoid *dest, const GLuint *source,
 238                        const struct gl_pixelstore_attrib *dstPacking,
 239                        GLbitfield transferOps );
 240
 241
 242 extern void
 243 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 244                            GLenum dstType, GLvoid *dest,
 245                            GLenum srcType, const GLvoid *source,
 246                            const struct gl_pixelstore_attrib *srcPacking,
 247                            GLbitfield transferOps );
 248
 249 extern void
 250 _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
 251                          GLenum dstType, GLvoid *dest, const GLstencil *source,
 252                          const struct gl_pixelstore_attrib *dstPacking );
 253
 254
 255 extern void
 256 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
 257                          GLenum dstType, GLvoid *dest, GLuint depthMax,
 258                          GLenum srcType, const GLvoid *source,
 259                          const struct gl_pixelstore_attrib *srcPacking );
 260
 261 extern void
 262 _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
 263                        GLenum dstType, const GLfloat *depthSpan,
 264                        const struct gl_pixelstore_attrib *dstPacking );
 265
 266
 267 extern void
 268 _mesa_pack_depth_stencil_span(const GLcontext *ctx, GLuint n, GLuint *dest,
 269                               const GLfloat *depthVals,
 270                               const GLstencil *stencilVals,
 271                               const struct gl_pixelstore_attrib *dstPacking);
 272
 273
 274 extern void *
 275 _mesa_unpack_image( GLuint dimensions,
 276                     GLsizei width, GLsizei height, GLsizei depth,
 277                     GLenum format, GLenum type, const GLvoid *pixels,
 278                     const struct gl_pixelstore_attrib *unpack );
 279
 280
 281 extern void
 282 _mesa_convert_colors(GLenum srcType, const GLvoid *src,
 283                      GLenum dstType, GLvoid *dst,
 284                      GLuint count, const GLubyte mask[]);
 285
 286
 287 extern GLboolean
 288 _mesa_clip_drawpixels(const GLcontext *ctx,
 289                       GLint *destX, GLint *destY,
 290                       GLsizei *width, GLsizei *height,
 291                       struct gl_pixelstore_attrib *unpack);
 292
 293
 294 extern GLboolean
 295 _mesa_clip_readpixels(const GLcontext *ctx,
 296                       GLint *destX, GLint *destY,
 297                       GLsizei *width, GLsizei *height,
 298                       struct gl_pixelstore_attrib *pack);
 299
 300 extern GLboolean
 301 _mesa_clip_copytexsubimage(const GLcontext *ctx,
 302                            GLint *destX, GLint *destY,
 303                            GLint *srcX, GLint *srcY,
 304                            GLsizei *width, GLsizei *height);
 305
 306 extern GLboolean
 307 _mesa_clip_to_region(GLint xmin, GLint ymin,
 308                      GLint xmax, GLint ymax,
 309                      GLint *x, GLint *y,
 310                      GLsizei *width, GLsizei *height );
 311
 312 extern GLboolean
 313 _mesa_clip_blit(GLcontext *ctx,
 314                 GLint *srcX0, GLint *srcY0, GLint *srcX1, GLint *srcY1,
 315                 GLint *dstX0, GLint *dstY0, GLint *dstX1, GLint *dstY1);
 316
 317
 318 #endif