1/*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 2010  VMware, Inc.  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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
20 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24
25#ifndef TRANSFORM_FEEDBACK_H
26#define TRANSFORM_FEEDBACK_H
27
28#include "compiler.h"
29#include "glheader.h"
30#include "mfeatures.h"
31
32struct _glapi_table;
33struct dd_function_table;
34struct gl_context;
35
36extern void
37_mesa_init_transform_feedback(struct gl_context *ctx);
38
39extern void
40_mesa_free_transform_feedback(struct gl_context *ctx);
41
42#if FEATURE_EXT_transform_feedback
43
44extern GLboolean
45_mesa_validate_transform_feedback_buffers(struct gl_context *ctx);
46
47
48extern void
49_mesa_init_transform_feedback_functions(struct dd_function_table *driver);
50
51extern void
52_mesa_init_transform_feedback_dispatch(struct _glapi_table *disp);
53
54
55/*** GL_EXT_transform_feedback ***/
56
57extern void GLAPIENTRY
58_mesa_BeginTransformFeedback(GLenum mode);
59
60extern void GLAPIENTRY
61_mesa_EndTransformFeedback(void);
62
63extern void
64_mesa_bind_buffer_range_transform_feedback(struct gl_context *ctx,
65					   GLuint index,
66					   struct gl_buffer_object *bufObj,
67					   GLintptr offset,
68					   GLsizeiptr size);
69
70extern void
71_mesa_bind_buffer_base_transform_feedback(struct gl_context *ctx,
72					  GLuint index,
73					  struct gl_buffer_object *bufObj);
74
75extern void GLAPIENTRY
76_mesa_BindBufferOffsetEXT(GLenum target, GLuint index, GLuint buffer,
77                          GLintptr offset);
78
79extern void GLAPIENTRY
80_mesa_TransformFeedbackVaryings(GLuint program, GLsizei count,
81                                const GLchar **varyings, GLenum bufferMode);
82
83extern void GLAPIENTRY
84_mesa_GetTransformFeedbackVarying(GLuint program, GLuint index,
85                                  GLsizei bufSize, GLsizei *length,
86                                  GLsizei *size, GLenum *type, GLchar *name);
87
88
89
90/*** GL_ARB_transform_feedback2 ***/
91
92struct gl_transform_feedback_object *
93_mesa_lookup_transform_feedback_object(struct gl_context *ctx, GLuint name);
94
95extern void GLAPIENTRY
96_mesa_GenTransformFeedbacks(GLsizei n, GLuint *names);
97
98extern GLboolean GLAPIENTRY
99_mesa_IsTransformFeedback(GLuint name);
100
101extern void GLAPIENTRY
102_mesa_BindTransformFeedback(GLenum target, GLuint name);
103
104extern void GLAPIENTRY
105_mesa_DeleteTransformFeedbacks(GLsizei n, const GLuint *names);
106
107extern void GLAPIENTRY
108_mesa_PauseTransformFeedback(void);
109
110extern void GLAPIENTRY
111_mesa_ResumeTransformFeedback(void);
112
113#else /* FEATURE_EXT_transform_feedback */
114
115static inline GLboolean
116_mesa_validate_primitive_mode(struct gl_context *ctx, GLenum mode)
117{
118   return GL_TRUE;
119}
120
121static inline GLboolean
122_mesa_validate_transform_feedback_buffers(struct gl_context *ctx)
123{
124   return GL_TRUE;
125}
126
127static inline void
128_mesa_init_transform_feedback_functions(struct dd_function_table *driver)
129{
130}
131
132static inline void
133_mesa_init_transform_feedback_dispatch(struct _glapi_table *disp)
134{
135}
136
137#endif /* FEATURE_EXT_transform_feedback */
138
139#endif /* TRANSFORM_FEEDBACK_H */
140