image.h revision d488af5b34e390a9b81dac96053bd45f34ffffff 
1/* $Id: image.h,v 1.18 2002/03/13 04:34:32 brianp Exp $ */
2
3/*
4 * Mesa 3-D graphics library
5 * Version:  4.1
6 *
7 * Copyright (C) 1999-2002  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
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 GLint
73_mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
74                          GLint width, GLint height,
75                          GLenum format, GLenum type );
76
77extern void
78_mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
79                              const struct gl_pixelstore_attrib *unpacking );
80
81
82extern void
83_mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
84                            const struct gl_pixelstore_attrib *packing );
85
86
87extern GLvoid *
88_mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
89                     const struct gl_pixelstore_attrib *packing );
90
91extern void
92_mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
93                   GLubyte *dest, const struct gl_pixelstore_attrib *packing );
94
95
96extern void
97_mesa_pack_float_rgba_span( GLcontext *ctx,
98                            GLuint n, CONST GLfloat rgba[][4],
99                            GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
100                            const struct gl_pixelstore_attrib *dstPacking,
101                            GLuint transferOps );
102
103
104extern void
105_mesa_pack_rgba_span( GLcontext *ctx,
106                      GLuint n, CONST GLchan rgba[][4],
107                      GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
108                      const struct gl_pixelstore_attrib *dstPacking,
109                      GLuint transferOps );
110
111
112extern void
113_mesa_unpack_chan_color_span( GLcontext *ctx,
114                              GLuint n, GLenum dstFormat, GLchan dest[],
115                              GLenum srcFormat, GLenum srcType,
116                              const GLvoid *source,
117                              const struct gl_pixelstore_attrib *srcPacking,
118                              GLuint transferOps );
119
120
121extern void
122_mesa_unpack_float_color_span( GLcontext *ctx,
123                               GLuint n, GLenum dstFormat, GLfloat dest[],
124                               GLenum srcFormat, GLenum srcType,
125                               const GLvoid *source,
126                               const struct gl_pixelstore_attrib *srcPacking,
127                               GLuint transferOps, GLboolean clamp );
128
129
130extern void
131_mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
132                         GLenum dstType, GLvoid *dest,
133                         GLenum srcType, const GLvoid *source,
134                         const struct gl_pixelstore_attrib *srcPacking,
135                         GLuint transferOps );
136
137
138extern void
139_mesa_pack_index_span( const GLcontext *ctx, GLuint n,
140                       GLenum dstType, GLvoid *dest, const GLuint *source,
141                       const struct gl_pixelstore_attrib *dstPacking,
142                       GLuint transferOps );
143
144
145extern void
146_mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
147                           GLenum dstType, GLvoid *dest,
148                           GLenum srcType, const GLvoid *source,
149                           const struct gl_pixelstore_attrib *srcPacking,
150                           GLuint transferOps );
151
152extern void
153_mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
154                         GLenum dstType, GLvoid *dest, const GLstencil *source,
155                         const struct gl_pixelstore_attrib *dstPacking );
156
157
158extern void
159_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
160                         GLenum srcType, const GLvoid *source,
161                         const struct gl_pixelstore_attrib *srcPacking );
162
163extern void
164_mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
165                       GLenum dstType, const GLfloat *depthSpan,
166                       const struct gl_pixelstore_attrib *dstPacking );
167
168
169extern void *
170_mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
171                    GLenum format, GLenum type, const GLvoid *pixels,
172                    const struct gl_pixelstore_attrib *unpack );
173
174
175#endif
176