3 * Mesa 3-D graphics library
6 * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 _swrast_alloc_alpha_buffers( GLframebuffer
*buffer
);
40 _swrast_clear_alpha_buffers( GLcontext
*ctx
);
44 _swrast_write_alpha_span( GLcontext
*ctx
, GLuint n
, GLint x
, GLint y
,
45 CONST GLchan rgba
[][4], const GLubyte mask
[] );
49 _swrast_write_mono_alpha_span( GLcontext
*ctx
,
50 GLuint n
, GLint x
, GLint y
,
51 GLchan alpha
, const GLubyte mask
[] );
56 _swrast_write_alpha_pixels( GLcontext
* ctx
,
57 GLuint n
, const GLint x
[], const GLint y
[],
58 CONST GLchan rgba
[][4],
59 const GLubyte mask
[] );
63 _swrast_write_mono_alpha_pixels( GLcontext
* ctx
,
64 GLuint n
, const GLint x
[],
65 const GLint y
[], GLchan alpha
,
66 const GLubyte mask
[] );
70 _swrast_read_alpha_span( GLcontext
* ctx
,
71 GLuint n
, GLint x
, GLint y
, GLchan rgba
[][4] );
75 _swrast_read_alpha_pixels( GLcontext
* ctx
,
76 GLuint n
, const GLint x
[], const GLint y
[],
77 GLchan rgba
[][4], const GLubyte mask
[] );