src/mesa/main/image.h

   1
   2 /*
   3  * Mesa 3-D graphics library
   4  * Version:  4.1
   5  *
   6  * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 #ifndef IMAGE_H
  28 #define IMAGE_H
  29
  30
  31 #include "mtypes.h"
  32
  33
  34 extern const struct gl_pixelstore_attrib _mesa_native_packing;
  35
  36
  37 extern void
  38 _mesa_swap2( GLushort *p, GLuint n );
  39
  40 extern void
  41 _mesa_swap4( GLuint *p, GLuint n );
  42
  43 extern GLint
  44 _mesa_sizeof_type( GLenum type );
  45
  46 extern GLint
  47 _mesa_sizeof_packed_type( GLenum type );
  48
  49 extern GLint
  50 _mesa_components_in_format( GLenum format );
  51
  52 extern GLint
  53 _mesa_bytes_per_pixel( GLenum format, GLenum type );
  54
  55 extern GLboolean
  56 _mesa_is_legal_format_and_type( GLenum format, GLenum type );
  57
  58
  59 extern GLvoid *
  60 _mesa_image_address( const struct gl_pixelstore_attrib *packing,
  61                      const GLvoid *image, GLsizei width,
  62                      GLsizei height, GLenum format, GLenum type,
  63                      GLint img, GLint row, GLint column );
  64
  65
  66 extern GLint
  67 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
  68                         GLint width, GLenum format, GLenum type );
  69
  70
  71 extern GLint
  72 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
  73                           GLint width, GLint height,
  74                           GLenum format, GLenum type );
  75
  76 extern void
  77 _mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
  78                               const struct gl_pixelstore_attrib *unpacking );
  79
  80
  81 extern void
  82 _mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
  83                             const struct gl_pixelstore_attrib *packing );
  84
  85
  86 extern GLvoid *
  87 _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
  88                      const struct gl_pixelstore_attrib *packing );
  89
  90 extern void
  91 _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
  92                    GLubyte *dest, const struct gl_pixelstore_attrib *packing );
  93
  94
  95 extern void
  96 _mesa_pack_float_rgba_span( GLcontext *ctx,
  97                             GLuint n, CONST GLfloat rgba[][4],
  98                             GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
  99                             const struct gl_pixelstore_attrib *dstPacking,
 100                             GLuint transferOps );
 101
 102
 103 extern void
 104 _mesa_pack_rgba_span( GLcontext *ctx,
 105                       GLuint n, CONST GLchan rgba[][4],
 106                       GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 107                       const struct gl_pixelstore_attrib *dstPacking,
 108                       GLuint transferOps );
 109
 110
 111 extern void
 112 _mesa_unpack_chan_color_span( GLcontext *ctx,
 113                               GLuint n, GLenum dstFormat, GLchan dest[],
 114                               GLenum srcFormat, GLenum srcType,
 115                               const GLvoid *source,
 116                               const struct gl_pixelstore_attrib *srcPacking,
 117                               GLuint transferOps );
 118
 119
 120 extern void
 121 _mesa_unpack_float_color_span( GLcontext *ctx,
 122                                GLuint n, GLenum dstFormat, GLfloat dest[],
 123                                GLenum srcFormat, GLenum srcType,
 124                                const GLvoid *source,
 125                                const struct gl_pixelstore_attrib *srcPacking,
 126                                GLuint transferOps, GLboolean clamp );
 127
 128
 129 extern void
 130 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
 131                          GLenum dstType, GLvoid *dest,
 132                          GLenum srcType, const GLvoid *source,
 133                          const struct gl_pixelstore_attrib *srcPacking,
 134                          GLuint transferOps );
 135
 136
 137 extern void
 138 _mesa_pack_index_span( const GLcontext *ctx, GLuint n,
 139                        GLenum dstType, GLvoid *dest, const GLuint *source,
 140                        const struct gl_pixelstore_attrib *dstPacking,
 141                        GLuint transferOps );
 142
 143
 144 extern void
 145 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 146                            GLenum dstType, GLvoid *dest,
 147                            GLenum srcType, const GLvoid *source,
 148                            const struct gl_pixelstore_attrib *srcPacking,
 149                            GLuint transferOps );
 150
 151 extern void
 152 _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
 153                          GLenum dstType, GLvoid *dest, const GLstencil *source,
 154                          const struct gl_pixelstore_attrib *dstPacking );
 155
 156
 157 extern void
 158 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
 159                          GLenum srcType, const GLvoid *source,
 160                          const struct gl_pixelstore_attrib *srcPacking );
 161
 162 extern void
 163 _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
 164                        GLenum dstType, const GLfloat *depthSpan,
 165                        const struct gl_pixelstore_attrib *dstPacking );
 166
 167
 168 extern void *
 169 _mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
 170                     GLenum format, GLenum type, const GLvoid *pixels,
 171                     const struct gl_pixelstore_attrib *unpack );
 172
 173
 174 #endif