src/mesa/main/image.h

   1 /**
   2  * \file image.h
   3  * Image handling.
   4  */
   5
   6 /*
   7  * Mesa 3-D graphics library
   8  * Version:  4.1
   9  *
  10  * Copyright (C) 1999-2002  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 const struct gl_pixelstore_attrib _mesa_native_packing;
  39
  40
  41 extern void
  42 _mesa_swap2( GLushort *p, GLuint n );
  43
  44 extern void
  45 _mesa_swap4( GLuint *p, GLuint n );
  46
  47 extern GLint
  48 _mesa_sizeof_type( GLenum type );
  49
  50 extern GLint
  51 _mesa_sizeof_packed_type( GLenum type );
  52
  53 extern GLint
  54 _mesa_components_in_format( GLenum format );
  55
  56 extern GLint
  57 _mesa_bytes_per_pixel( GLenum format, GLenum type );
  58
  59 extern GLboolean
  60 _mesa_is_legal_format_and_type( GLenum format, GLenum type );
  61
  62
  63 extern GLvoid *
  64 _mesa_image_address( const struct gl_pixelstore_attrib *packing,
  65                      const GLvoid *image, GLsizei width,
  66                      GLsizei height, GLenum format, GLenum type,
  67                      GLint img, GLint row, GLint column );
  68
  69
  70 extern GLint
  71 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
  72                         GLint width, GLenum format, GLenum type );
  73
  74
  75 extern GLint
  76 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
  77                           GLint width, GLint height,
  78                           GLenum format, GLenum type );
  79
  80 extern void
  81 _mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
  82                               const struct gl_pixelstore_attrib *unpacking );
  83
  84
  85 extern void
  86 _mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
  87                             const struct gl_pixelstore_attrib *packing );
  88
  89
  90 extern GLvoid *
  91 _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
  92                      const struct gl_pixelstore_attrib *packing );
  93
  94 extern void
  95 _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
  96                    GLubyte *dest, const struct gl_pixelstore_attrib *packing );
  97
  98
  99 extern void
 100 _mesa_pack_float_rgba_span( GLcontext *ctx,
 101                             GLuint n, CONST GLfloat rgba[][4],
 102                             GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 103                             const struct gl_pixelstore_attrib *dstPacking,
 104                             GLuint transferOps );
 105
 106
 107 extern void
 108 _mesa_pack_rgba_span( GLcontext *ctx,
 109                       GLuint n, CONST GLchan rgba[][4],
 110                       GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 111                       const struct gl_pixelstore_attrib *dstPacking,
 112                       GLuint transferOps );
 113
 114
 115 extern void
 116 _mesa_unpack_chan_color_span( GLcontext *ctx,
 117                               GLuint n, GLenum dstFormat, GLchan dest[],
 118                               GLenum srcFormat, GLenum srcType,
 119                               const GLvoid *source,
 120                               const struct gl_pixelstore_attrib *srcPacking,
 121                               GLuint transferOps );
 122
 123
 124 extern void
 125 _mesa_unpack_float_color_span( GLcontext *ctx,
 126                                GLuint n, GLenum dstFormat, GLfloat dest[],
 127                                GLenum srcFormat, GLenum srcType,
 128                                const GLvoid *source,
 129                                const struct gl_pixelstore_attrib *srcPacking,
 130                                GLuint transferOps, GLboolean clamp );
 131
 132
 133 extern void
 134 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
 135                          GLenum dstType, GLvoid *dest,
 136                          GLenum srcType, const GLvoid *source,
 137                          const struct gl_pixelstore_attrib *srcPacking,
 138                          GLuint transferOps );
 139
 140
 141 extern void
 142 _mesa_pack_index_span( const GLcontext *ctx, GLuint n,
 143                        GLenum dstType, GLvoid *dest, const GLuint *source,
 144                        const struct gl_pixelstore_attrib *dstPacking,
 145                        GLuint transferOps );
 146
 147
 148 extern void
 149 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 150                            GLenum dstType, GLvoid *dest,
 151                            GLenum srcType, const GLvoid *source,
 152                            const struct gl_pixelstore_attrib *srcPacking,
 153                            GLuint transferOps );
 154
 155 extern void
 156 _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
 157                          GLenum dstType, GLvoid *dest, const GLstencil *source,
 158                          const struct gl_pixelstore_attrib *dstPacking );
 159
 160
 161 extern void
 162 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
 163                          GLenum srcType, const GLvoid *source,
 164                          const struct gl_pixelstore_attrib *srcPacking );
 165
 166 extern void
 167 _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
 168                        GLenum dstType, const GLfloat *depthSpan,
 169                        const struct gl_pixelstore_attrib *dstPacking );
 170
 171
 172 extern void *
 173 _mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
 174                     GLenum format, GLenum type, const GLvoid *pixels,
 175                     const struct gl_pixelstore_attrib *unpack );
 176
 177
 178 #endif