Clean-up and optimize alpha test code.
[mesa.git] / src / mesa / swrast / s_zoom.h
1 /* $Id: s_zoom.h,v 1.7 2002/01/31 00:27:43 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 #ifndef S_ZOOM_H
28 #define S_ZOOM_H
29
30 #include "mtypes.h"
31 #include "swrast.h"
32
33 extern void
34 _mesa_write_zoomed_rgba_span( GLcontext *ctx, const struct sw_span *span,
35 CONST GLchan rgb[][4], GLint y0 );
36
37 extern void
38 _mesa_write_zoomed_rgb_span( GLcontext *ctx, const struct sw_span *span,
39 CONST GLchan rgb[][3], GLint y0 );
40
41 extern void
42 _mesa_write_zoomed_index_span( GLcontext *ctx, const struct sw_span *span,
43 GLint y0 );
44
45 extern void
46 _mesa_write_zoomed_stencil_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
47 const GLstencil stencil[], GLint y0 );
48
49 #endif