image.h revision fa4525e289b475b928a7b2c4055af9dd7fe46600 
1/* $Id: image.h,v 1.10 2000/08/21 14:22:24 brianp Exp $ */
2
3/*
4 * Mesa 3-D graphics library
5 * Version:  3.5
6 *
7 * Copyright (C) 1999-2000  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 "types.h"
33
34
35extern const struct gl_pixelstore_attrib _mesa_native_packing;
36
37
38extern void
39_mesa_swap2( GLushort *p, GLuint n );
40
41extern void
42_mesa_swap4( GLuint *p, GLuint n );
43
44extern GLint
45_mesa_sizeof_type( GLenum type );
46
47extern GLint
48_mesa_sizeof_packed_type( GLenum type );
49
50extern GLint
51_mesa_components_in_format( GLenum format );
52
53extern GLint
54_mesa_bytes_per_pixel( GLenum format, GLenum type );
55
56extern GLboolean
57_mesa_is_legal_format_and_type( GLenum format, GLenum type );
58
59
60extern 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
67extern GLint
68_mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
69                        GLint width, GLenum format, GLenum type );
70
71
72extern void
73_mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
74                              const struct gl_pixelstore_attrib *unpacking );
75
76
77extern void
78_mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
79                            const struct gl_pixelstore_attrib *packing );
80
81
82extern void
83_mesa_pack_rgba_span( GLcontext *ctx,
84                      GLuint n, CONST GLubyte rgba[][4],
85                      GLenum format, GLenum type, GLvoid *dest,
86                      const struct gl_pixelstore_attrib *packing,
87                      GLuint transferOps );
88
89
90extern void
91_mesa_unpack_ubyte_color_span( GLcontext *ctx,
92                               GLuint n, GLenum dstFormat, GLubyte dest[],
93                               GLenum srcFormat, GLenum srcType,
94                               const GLvoid *source,
95                               const struct gl_pixelstore_attrib *unpacking,
96                               GLuint transferOps );
97
98
99extern void
100_mesa_unpack_float_color_span( GLcontext *ctx,
101                               GLuint n, GLenum dstFormat, GLfloat dest[],
102                               GLenum srcFormat, GLenum srcType,
103                               const GLvoid *source,
104                               const struct gl_pixelstore_attrib *unpacking,
105                               GLuint transferOps, GLboolean clamp );
106
107
108extern void
109_mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
110                         GLenum dstType, GLvoid *dest,
111                         GLenum srcType, const GLvoid *source,
112                         const struct gl_pixelstore_attrib *unpacking,
113                         GLuint transferOps );
114
115
116extern void
117_mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
118                           GLenum dstType, GLvoid *dest,
119                           GLenum srcType, const GLvoid *source,
120                           const struct gl_pixelstore_attrib *unpacking,
121                           GLuint transferOps );
122
123
124extern void
125_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLdepth *dest,
126                         GLenum srcType, const GLvoid *source,
127                         const struct gl_pixelstore_attrib *unpacking,
128                         GLuint transferOps );
129
130
131extern void *
132_mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
133                    GLenum format, GLenum type, const GLvoid *pixels,
134                    const struct gl_pixelstore_attrib *unpack );
135
136
137extern GLvoid *
138_mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
139                     const struct gl_pixelstore_attrib *packing );
140
141extern void
142_mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
143                   GLubyte *dest, const struct gl_pixelstore_attrib *packing );
144
145
146#endif
147