image.h revision 176501dfff14b5bec78af2b3487207d42c26d37a 
1/*
2 * Mesa 3-D graphics library
3 * Version:  6.5.2
4 *
5 * Copyright (C) 1999-2006  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
118extern void
119_mesa_pack_rgba_span_float( GLcontext *ctx, GLuint n, GLfloat rgba[][4],
120                            GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
121                            const struct gl_pixelstore_attrib *dstPacking,
122                            GLbitfield transferOps );
123
124
125extern void
126_mesa_unpack_color_span_chan( GLcontext *ctx,
127                              GLuint n, GLenum dstFormat, GLchan dest[],
128                              GLenum srcFormat, GLenum srcType,
129                              const GLvoid *source,
130                              const struct gl_pixelstore_attrib *srcPacking,
131                              GLbitfield transferOps );
132
133
134extern void
135_mesa_unpack_color_span_float( GLcontext *ctx,
136                               GLuint n, GLenum dstFormat, GLfloat dest[],
137                               GLenum srcFormat, GLenum srcType,
138                               const GLvoid *source,
139                               const struct gl_pixelstore_attrib *srcPacking,
140                               GLbitfield transferOps );
141
142
143extern void
144_mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
145                         GLenum dstType, GLvoid *dest,
146                         GLenum srcType, const GLvoid *source,
147                         const struct gl_pixelstore_attrib *srcPacking,
148                         GLbitfield transferOps );
149
150
151extern void
152_mesa_pack_index_span( const GLcontext *ctx, GLuint n,
153                       GLenum dstType, GLvoid *dest, const GLuint *source,
154                       const struct gl_pixelstore_attrib *dstPacking,
155                       GLbitfield transferOps );
156
157
158extern void
159_mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
160                           GLenum dstType, GLvoid *dest,
161                           GLenum srcType, const GLvoid *source,
162                           const struct gl_pixelstore_attrib *srcPacking,
163                           GLbitfield transferOps );
164
165extern void
166_mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
167                         GLenum dstType, GLvoid *dest, const GLstencil *source,
168                         const struct gl_pixelstore_attrib *dstPacking );
169
170
171extern void
172_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
173                         GLenum dstType, GLvoid *dest, GLfloat depthScale,
174                         GLenum srcType, const GLvoid *source,
175                         const struct gl_pixelstore_attrib *srcPacking );
176
177extern void
178_mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
179                       GLenum dstType, const GLfloat *depthSpan,
180                       const struct gl_pixelstore_attrib *dstPacking );
181
182
183extern void
184_mesa_pack_depth_stencil_span(const GLcontext *ctx, GLuint n, GLuint *dest,
185                              const GLfloat *depthVals,
186                              const GLstencil *stencilVals,
187                              const struct gl_pixelstore_attrib *dstPacking);
188
189
190extern void *
191_mesa_unpack_image( GLuint dimensions,
192                    GLsizei width, GLsizei height, GLsizei depth,
193                    GLenum format, GLenum type, const GLvoid *pixels,
194                    const struct gl_pixelstore_attrib *unpack );
195
196
197extern void
198_mesa_convert_colors(GLenum srcType, const GLvoid *src,
199                     GLenum dstType, GLvoid *dst,
200                     GLuint count, const GLubyte mask[]);
201
202
203extern GLboolean
204_mesa_clip_drawpixels(const GLcontext *ctx,
205                      GLint *destX, GLint *destY,
206                      GLsizei *width, GLsizei *height,
207                      struct gl_pixelstore_attrib *unpack);
208
209
210extern GLboolean
211_mesa_clip_readpixels(const GLcontext *ctx,
212                      GLint *destX, GLint *destY,
213                      GLsizei *width, GLsizei *height,
214                      struct gl_pixelstore_attrib *pack);
215
216extern GLboolean
217_mesa_clip_to_region(GLint xmin, GLint ymin,
218                     GLint xmax, GLint ymax,
219                     GLint *x, GLint *y,
220                     GLsizei *width, GLsizei *height );
221
222#endif
223