src/mesa/main/image.h

   1 /* $Id: image.h,v 1.17 2001/03/07 05:06:12 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28 #ifndef IMAGE_H
  29 #define IMAGE_H
  30
  31
  32 #include "mtypes.h"
  33
  34
  35 extern const struct gl_pixelstore_attrib _mesa_native_packing;
  36
  37
  38 extern void
  39 _mesa_swap2( GLushort *p, GLuint n );
  40
  41 extern void
  42 _mesa_swap4( GLuint *p, GLuint n );
  43
  44 extern GLint
  45 _mesa_sizeof_type( GLenum type );
  46
  47 extern GLint
  48 _mesa_sizeof_packed_type( GLenum type );
  49
  50 extern GLint
  51 _mesa_components_in_format( GLenum format );
  52
  53 extern GLint
  54 _mesa_bytes_per_pixel( GLenum format, GLenum type );
  55
  56 extern GLboolean
  57 _mesa_is_legal_format_and_type( GLenum format, GLenum type );
  58
  59
  60 extern GLvoid *
  61 _mesa_image_address( const struct gl_pixelstore_attrib *packing,
  62                      const GLvoid *image, GLsizei width,
  63                      GLsizei height, GLenum format, GLenum type,
  64                      GLint img, GLint row, GLint column );
  65
  66
  67 extern GLint
  68 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
  69                         GLint width, GLenum format, GLenum type );
  70
  71
  72 extern void
  73 _mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
  74                               const struct gl_pixelstore_attrib *unpacking );
  75
  76
  77 extern void
  78 _mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
  79                             const struct gl_pixelstore_attrib *packing );
  80
  81
  82 extern GLvoid *
  83 _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
  84                      const struct gl_pixelstore_attrib *packing );
  85
  86 extern void
  87 _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
  88                    GLubyte *dest, const struct gl_pixelstore_attrib *packing );
  89
  90
  91 extern void
  92 _mesa_pack_float_rgba_span( GLcontext *ctx,
  93                             GLuint n, CONST GLfloat rgba[][4],
  94                             GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
  95                             const struct gl_pixelstore_attrib *dstPacking,
  96                             GLuint transferOps );
  97
  98
  99 extern void
 100 _mesa_pack_rgba_span( GLcontext *ctx,
 101                       GLuint n, CONST GLchan 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_unpack_chan_color_span( GLcontext *ctx,
 109                               GLuint n, GLenum dstFormat, GLchan dest[],
 110                               GLenum srcFormat, GLenum srcType,
 111                               const GLvoid *source,
 112                               const struct gl_pixelstore_attrib *srcPacking,
 113                               GLuint transferOps );
 114
 115
 116 extern void
 117 _mesa_unpack_float_color_span( GLcontext *ctx,
 118                                GLuint n, GLenum dstFormat, GLfloat dest[],
 119                                GLenum srcFormat, GLenum srcType,
 120                                const GLvoid *source,
 121                                const struct gl_pixelstore_attrib *srcPacking,
 122                                GLuint transferOps, GLboolean clamp );
 123
 124
 125 extern void
 126 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
 127                          GLenum dstType, GLvoid *dest,
 128                          GLenum srcType, const GLvoid *source,
 129                          const struct gl_pixelstore_attrib *srcPacking,
 130                          GLuint transferOps );
 131
 132
 133 extern void
 134 _mesa_pack_index_span( const GLcontext *ctx, GLuint n,
 135                        GLenum dstType, GLvoid *dest, const GLuint *source,
 136                        const struct gl_pixelstore_attrib *dstPacking,
 137                        GLuint transferOps );
 138
 139
 140 extern void
 141 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 142                            GLenum dstType, GLvoid *dest,
 143                            GLenum srcType, const GLvoid *source,
 144                            const struct gl_pixelstore_attrib *srcPacking,
 145                            GLuint transferOps );
 146
 147 extern void
 148 _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
 149                          GLenum dstType, GLvoid *dest, const GLstencil *source,
 150                          const struct gl_pixelstore_attrib *dstPacking );
 151
 152
 153 extern void
 154 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
 155                          GLenum srcType, const GLvoid *source,
 156                          const struct gl_pixelstore_attrib *srcPacking );
 157
 158 extern void
 159 _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
 160                        GLenum dstType, const GLfloat *depthSpan,
 161                        const struct gl_pixelstore_attrib *dstPacking );
 162
 163
 164 extern void *
 165 _mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
 166                     GLenum format, GLenum type, const GLvoid *pixels,
 167                     const struct gl_pixelstore_attrib *unpack );
 168
 169
 170 #endif