1 /*
2  * Mesa 3-D graphics library
3  *
4  * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  */
24 
25 #ifndef S_ZOOM_H
26 #define S_ZOOM_H
27 
28 #include "main/mtypes.h"
29 #include "s_span.h"
30 
31 
32 extern void
33 _swrast_write_zoomed_rgba_span(struct gl_context *ctx, GLint imgX, GLint imgY,
34                                const SWspan *span, const GLvoid *rgba);
35 
36 extern void
37 _swrast_write_zoomed_rgb_span(struct gl_context *ctx, GLint imgX, GLint imgY,
38                               const SWspan *span, const GLvoid *rgb);
39 
40 extern void
41 _swrast_write_zoomed_depth_span(struct gl_context *ctx, GLint imgX, GLint imgY,
42                                 const SWspan *span);
43 
44 
45 extern void
46 _swrast_write_zoomed_stencil_span(struct gl_context *ctx, GLint imgX, GLint imgY,
47                                   GLint width, GLint spanX, GLint spanY,
48                                   const GLubyte stencil[]);
49 
50 extern void
51 _swrast_write_zoomed_z_span(struct gl_context *ctx, GLint imgX, GLint imgY,
52                             GLint width, GLint spanX, GLint spanY,
53                             const GLuint *zVals);
54 
55 
56 #endif
57