1848b8605Smrg/*
2848b8605Smrg * Mesa 3-D graphics library
3848b8605Smrg *
4848b8605Smrg * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
5848b8605Smrg * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
6848b8605Smrg *
7848b8605Smrg * Permission is hereby granted, free of charge, to any person obtaining a
8848b8605Smrg * copy of this software and associated documentation files (the "Software"),
9848b8605Smrg * to deal in the Software without restriction, including without limitation
10848b8605Smrg * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11848b8605Smrg * and/or sell copies of the Software, and to permit persons to whom the
12848b8605Smrg * Software is furnished to do so, subject to the following conditions:
13848b8605Smrg *
14848b8605Smrg * The above copyright notice and this permission notice shall be included
15848b8605Smrg * in all copies or substantial portions of the Software.
16848b8605Smrg *
17848b8605Smrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18848b8605Smrg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19848b8605Smrg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20848b8605Smrg * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21848b8605Smrg * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22848b8605Smrg * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23848b8605Smrg * OTHER DEALINGS IN THE SOFTWARE.
24848b8605Smrg */
25848b8605Smrg
26848b8605Smrg#ifndef FEEDBACK_H
27848b8605Smrg#define FEEDBACK_H
28848b8605Smrg
29848b8605Smrg
30848b8605Smrg#include "main/mtypes.h"
31848b8605Smrg
32848b8605Smrg
33848b8605Smrgvoid GLAPIENTRY
34848b8605Smrg_mesa_FeedbackBuffer( GLsizei size, GLenum type, GLfloat *buffer );
35848b8605Smrgvoid GLAPIENTRY
36848b8605Smrg_mesa_PassThrough( GLfloat token );
37848b8605Smrgvoid GLAPIENTRY
38848b8605Smrg_mesa_SelectBuffer( GLsizei size, GLuint *buffer );
39848b8605Smrgvoid GLAPIENTRY
40848b8605Smrg_mesa_InitNames( void );
41848b8605Smrgvoid GLAPIENTRY
42848b8605Smrg_mesa_LoadName( GLuint name );
43848b8605Smrgvoid GLAPIENTRY
44848b8605Smrg_mesa_PushName( GLuint name );
45848b8605Smrgvoid GLAPIENTRY
46848b8605Smrg_mesa_PopName( void );
47848b8605SmrgGLint GLAPIENTRY
48848b8605Smrg_mesa_RenderMode( GLenum mode );
49848b8605Smrg
50848b8605Smrgextern void
51848b8605Smrg_mesa_feedback_vertex( struct gl_context *ctx,
52848b8605Smrg                       const GLfloat win[4],
53848b8605Smrg                       const GLfloat color[4],
54848b8605Smrg                       const GLfloat texcoord[4] );
55848b8605Smrg
56848b8605Smrg
57848b8605Smrgstatic inline void
58848b8605Smrg_mesa_feedback_token( struct gl_context *ctx, GLfloat token )
59848b8605Smrg{
60848b8605Smrg   if (ctx->Feedback.Count < ctx->Feedback.BufferSize) {
61848b8605Smrg      ctx->Feedback.Buffer[ctx->Feedback.Count] = token;
62848b8605Smrg   }
63848b8605Smrg   ctx->Feedback.Count++;
64848b8605Smrg}
65848b8605Smrg
66848b8605Smrg
67848b8605Smrgextern void
68848b8605Smrg_mesa_update_hitflag( struct gl_context *ctx, GLfloat z );
69848b8605Smrg
70848b8605Smrg
71848b8605Smrgextern void
72848b8605Smrg_mesa_init_feedback( struct gl_context *ctx );
73848b8605Smrg
74848b8605Smrg#endif /* FEEDBACK_H */
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