image.h revision 25cfb68f0b3baf0e74d1f6a37afab46370f6711b 
1/*
2 * Mesa 3-D graphics library
3 * Version:  7.1
4 *
5 * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26#ifndef IMAGE_H
27#define IMAGE_H
28
29
30#include "mtypes.h"
31
32
33extern void
34_mesa_swap2( GLushort *p, GLuint n );
35
36extern void
37_mesa_swap4( GLuint *p, GLuint n );
38
39extern GLint
40_mesa_sizeof_type( GLenum type );
41
42extern GLint
43_mesa_sizeof_packed_type( GLenum type );
44
45extern GLint
46_mesa_components_in_format( GLenum format );
47
48extern GLint
49_mesa_bytes_per_pixel( GLenum format, GLenum type );
50
51extern GLboolean
52_mesa_is_legal_format_and_type( GLcontext *ctx, GLenum format, GLenum type );
53
54
55extern GLvoid *
56_mesa_image_address( GLuint dimensions,
57                     const struct gl_pixelstore_attrib *packing,
58                     const GLvoid *image,
59                     GLsizei width, GLsizei height,
60                     GLenum format, GLenum type,
61                     GLint img, GLint row, GLint column );
62
63extern GLvoid *
64_mesa_image_address1d( const struct gl_pixelstore_attrib *packing,
65                       const GLvoid *image,
66                       GLsizei width,
67                       GLenum format, GLenum type,
68                       GLint column );
69
70extern GLvoid *
71_mesa_image_address2d( const struct gl_pixelstore_attrib *packing,
72                       const GLvoid *image,
73                       GLsizei width, GLsizei height,
74                       GLenum format, GLenum type,
75                       GLint row, GLint column );
76
77extern GLvoid *
78_mesa_image_address3d( const struct gl_pixelstore_attrib *packing,
79                       const GLvoid *image,
80                       GLsizei width, GLsizei height,
81                       GLenum format, GLenum type,
82                       GLint img, GLint row, GLint column );
83
84
85extern GLint
86_mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
87                        GLint width, GLenum format, GLenum type );
88
89
90extern GLint
91_mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
92                          GLint width, GLint height,
93                          GLenum format, GLenum type );
94
95extern void
96_mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
97                              const struct gl_pixelstore_attrib *unpacking );
98
99
100extern void
101_mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
102                            const struct gl_pixelstore_attrib *packing );
103
104
105extern GLvoid *
106_mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
107                     const struct gl_pixelstore_attrib *packing );
108
109extern void
110_mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
111                   GLubyte *dest, const struct gl_pixelstore_attrib *packing );
112
113
114extern void
115_mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLbitfield transferOps,
116                              GLuint n, GLfloat rgba[][4]);
117
118
119extern void
120_mesa_apply_ci_transfer_ops(const GLcontext *ctx, GLbitfield transferOps,
121                            GLuint n, GLuint indexes[]);
122
123
124extern void
125_mesa_apply_stencil_transfer_ops(const GLcontext *ctx, GLuint n,
126                                 GLstencil stencil[]);
127
128
129extern void
130_mesa_pack_rgba_span_float( GLcontext *ctx, GLuint n, GLfloat rgba[][4],
131                            GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
132                            const struct gl_pixelstore_attrib *dstPacking,
133                            GLbitfield transferOps );
134
135
136extern void
137_mesa_unpack_color_span_chan( GLcontext *ctx,
138                              GLuint n, GLenum dstFormat, GLchan dest[],
139                              GLenum srcFormat, GLenum srcType,
140                              const GLvoid *source,
141                              const struct gl_pixelstore_attrib *srcPacking,
142                              GLbitfield transferOps );
143
144
145extern void
146_mesa_unpack_color_span_float( GLcontext *ctx,
147                               GLuint n, GLenum dstFormat, GLfloat dest[],
148                               GLenum srcFormat, GLenum srcType,
149                               const GLvoid *source,
150                               const struct gl_pixelstore_attrib *srcPacking,
151                               GLbitfield transferOps );
152
153
154extern void
155_mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
156                         GLenum dstType, GLvoid *dest,
157                         GLenum srcType, const GLvoid *source,
158                         const struct gl_pixelstore_attrib *srcPacking,
159                         GLbitfield transferOps );
160
161
162extern void
163_mesa_pack_index_span( const GLcontext *ctx, GLuint n,
164                       GLenum dstType, GLvoid *dest, const GLuint *source,
165                       const struct gl_pixelstore_attrib *dstPacking,
166                       GLbitfield transferOps );
167
168
169extern void
170_mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
171                           GLenum dstType, GLvoid *dest,
172                           GLenum srcType, const GLvoid *source,
173                           const struct gl_pixelstore_attrib *srcPacking,
174                           GLbitfield transferOps );
175
176extern void
177_mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
178                         GLenum dstType, GLvoid *dest, const GLstencil *source,
179                         const struct gl_pixelstore_attrib *dstPacking );
180
181
182extern void
183_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
184                         GLenum dstType, GLvoid *dest, GLuint depthMax,
185                         GLenum srcType, const GLvoid *source,
186                         const struct gl_pixelstore_attrib *srcPacking );
187
188extern void
189_mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
190                       GLenum dstType, const GLfloat *depthSpan,
191                       const struct gl_pixelstore_attrib *dstPacking );
192
193
194extern void
195_mesa_pack_depth_stencil_span(const GLcontext *ctx, GLuint n, GLuint *dest,
196                              const GLfloat *depthVals,
197                              const GLstencil *stencilVals,
198                              const struct gl_pixelstore_attrib *dstPacking);
199
200
201extern void *
202_mesa_unpack_image( GLuint dimensions,
203                    GLsizei width, GLsizei height, GLsizei depth,
204                    GLenum format, GLenum type, const GLvoid *pixels,
205                    const struct gl_pixelstore_attrib *unpack );
206
207
208extern void
209_mesa_convert_colors(GLenum srcType, const GLvoid *src,
210                     GLenum dstType, GLvoid *dst,
211                     GLuint count, const GLubyte mask[]);
212
213
214extern GLboolean
215_mesa_clip_drawpixels(const GLcontext *ctx,
216                      GLint *destX, GLint *destY,
217                      GLsizei *width, GLsizei *height,
218                      struct gl_pixelstore_attrib *unpack);
219
220
221extern GLboolean
222_mesa_clip_readpixels(const GLcontext *ctx,
223                      GLint *destX, GLint *destY,
224                      GLsizei *width, GLsizei *height,
225                      struct gl_pixelstore_attrib *pack);
226
227extern GLboolean
228_mesa_clip_to_region(GLint xmin, GLint ymin,
229                     GLint xmax, GLint ymax,
230                     GLint *x, GLint *y,
231                     GLsizei *width, GLsizei *height );
232
233#endif
234