1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. 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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26 #ifndef FEEDBACK_H
27 #define FEEDBACK_H
28
29 #include "main/mtypes.h"
30
31 extern void
32 _mesa_feedback_vertex( struct gl_context *ctx,
33 const GLfloat win[4],
34 const GLfloat color[4],
35 const GLfloat texcoord[4] );
36
37
38 static inline void
_mesa_feedback_token(struct gl_context * ctx,GLfloat token)39 _mesa_feedback_token( struct gl_context *ctx, GLfloat token )
40 {
41 if (ctx->Feedback.Count < ctx->Feedback.BufferSize) {
42 ctx->Feedback.Buffer[ctx->Feedback.Count] = token;
43 }
44 ctx->Feedback.Count++;
45 }
46
47
48 extern void
49 _mesa_update_hitflag( struct gl_context *ctx, GLfloat z );
50
51
52 extern void
53 _mesa_init_feedback( struct gl_context *ctx );
54
55 extern void
56 _mesa_free_feedback( struct gl_context *ctx );
57
58 #endif /* FEEDBACK_H */
59