2 * Mesa 3-D graphics library
4 * Copyright (C) 2010 VMware, Inc. All Rights Reserved.
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:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
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.
26 #ifndef TRANSFORM_FEEDBACK_H
27 #define TRANSFORM_FEEDBACK_H
35 struct dd_function_table
;
39 _mesa_init_transform_feedback(struct gl_context
*ctx
);
42 _mesa_free_transform_feedback(struct gl_context
*ctx
);
45 _mesa_validate_transform_feedback_buffers(struct gl_context
*ctx
);
49 _mesa_init_transform_feedback_functions(struct dd_function_table
*driver
);
52 _mesa_compute_max_transform_feedback_vertices(
53 const struct gl_transform_feedback_object
*obj
,
54 const struct gl_transform_feedback_info
*info
);
57 /*** GL_EXT_transform_feedback ***/
59 extern void GLAPIENTRY
60 _mesa_BeginTransformFeedback(GLenum mode
);
62 extern void GLAPIENTRY
63 _mesa_EndTransformFeedback(void);
66 _mesa_bind_buffer_range_transform_feedback(struct gl_context
*ctx
,
68 struct gl_buffer_object
*bufObj
,
73 _mesa_bind_buffer_base_transform_feedback(struct gl_context
*ctx
,
75 struct gl_buffer_object
*bufObj
);
77 extern void GLAPIENTRY
78 _mesa_BindBufferOffsetEXT(GLenum target
, GLuint index
, GLuint buffer
,
81 extern void GLAPIENTRY
82 _mesa_TransformFeedbackVaryings(GLuint program
, GLsizei count
,
83 const GLchar
* const *varyings
,
86 extern void GLAPIENTRY
87 _mesa_GetTransformFeedbackVarying(GLuint program
, GLuint index
,
88 GLsizei bufSize
, GLsizei
*length
,
89 GLsizei
*size
, GLenum
*type
, GLchar
*name
);
93 /*** GL_ARB_transform_feedback2 ***/
95 struct gl_transform_feedback_object
*
96 _mesa_lookup_transform_feedback_object(struct gl_context
*ctx
, GLuint name
);
98 extern void GLAPIENTRY
99 _mesa_GenTransformFeedbacks(GLsizei n
, GLuint
*names
);
101 extern GLboolean GLAPIENTRY
102 _mesa_IsTransformFeedback(GLuint name
);
104 extern void GLAPIENTRY
105 _mesa_BindTransformFeedback(GLenum target
, GLuint name
);
107 extern void GLAPIENTRY
108 _mesa_DeleteTransformFeedbacks(GLsizei n
, const GLuint
*names
);
110 extern void GLAPIENTRY
111 _mesa_PauseTransformFeedback(void);
113 extern void GLAPIENTRY
114 _mesa_ResumeTransformFeedback(void);
117 _mesa_is_xfb_active_and_unpaused(const struct gl_context
*ctx
)
119 return ctx
->TransformFeedback
.CurrentObject
->Active
&&
120 !ctx
->TransformFeedback
.CurrentObject
->Paused
;
123 #endif /* TRANSFORM_FEEDBACK_H */