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
30 #include "main/mtypes.h"
31
32
33 void GLAPIENTRY
34 _mesa_FeedbackBuffer( GLsizei size, GLenum type, GLfloat *buffer );
35 void GLAPIENTRY
36 _mesa_PassThrough( GLfloat token );
37 void GLAPIENTRY
38 _mesa_SelectBuffer( GLsizei size, GLuint *buffer );
39 void GLAPIENTRY
40 _mesa_InitNames( void );
41 void GLAPIENTRY
42 _mesa_LoadName( GLuint name );
43 void GLAPIENTRY
44 _mesa_PushName( GLuint name );
45 void GLAPIENTRY
46 _mesa_PopName( void );
47 GLint GLAPIENTRY
48 _mesa_RenderMode( GLenum mode );
49
50 extern void
51 _mesa_feedback_vertex( struct gl_context *ctx,
52 const GLfloat win[4],
53 const GLfloat color[4],
54 const GLfloat texcoord[4] );
55
56
57 static inline void
_mesa_feedback_token(struct gl_context * ctx,GLfloat token)58 _mesa_feedback_token( struct gl_context *ctx, GLfloat token )
59 {
60 if (ctx->Feedback.Count < ctx->Feedback.BufferSize) {
61 ctx->Feedback.Buffer[ctx->Feedback.Count] = token;
62 }
63 ctx->Feedback.Count++;
64 }
65
66
67 extern void
68 _mesa_update_hitflag( struct gl_context *ctx, GLfloat z );
69
70
71 extern void
72 _mesa_init_feedback( struct gl_context *ctx );
73
74 #endif /* FEEDBACK_H */
75