src/mesa/main/transformfeedback.h

   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
  32 struct _glapi_table;
  33 struct dd_function_table;
  34 struct gl_context;
  35
  36 extern void
  37 _mesa_init_transform_feedback(struct gl_context *ctx);
  38
  39 extern void
  40 _mesa_free_transform_feedback(struct gl_context *ctx);
  41
  42 #if FEATURE_EXT_transform_feedback
  43
  44 extern GLboolean
  45 _mesa_validate_transform_feedback_buffers(struct gl_context *ctx);
  46
  47
  48 extern void
  49 _mesa_init_transform_feedback_functions(struct dd_function_table *driver);
  50
  51 extern void
  52 _mesa_init_transform_feedback_dispatch(struct _glapi_table *disp);
  53
  54
  55 /*** GL_EXT_transform_feedback ***/
  56
  57 extern void GLAPIENTRY
  58 _mesa_BeginTransformFeedback(GLenum mode);
  59
  60 extern void GLAPIENTRY
  61 _mesa_EndTransformFeedback(void);
  62
  63 extern 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
  70 extern void
  71 _mesa_bind_buffer_base_transform_feedback(struct gl_context *ctx,
  72                                           GLuint index,
  73                                           struct gl_buffer_object *bufObj);
  74
  75 extern void GLAPIENTRY
  76 _mesa_BindBufferOffsetEXT(GLenum target, GLuint index, GLuint buffer,
  77                           GLintptr offset);
  78
  79 extern void GLAPIENTRY
  80 _mesa_TransformFeedbackVaryings(GLuint program, GLsizei count,
  81                                 const GLchar **varyings, GLenum bufferMode);
  82
  83 extern 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
  92 struct gl_transform_feedback_object *
  93 _mesa_lookup_transform_feedback_object(struct gl_context *ctx, GLuint name);
  94
  95 extern void GLAPIENTRY
  96 _mesa_GenTransformFeedbacks(GLsizei n, GLuint *names);
  97
  98 extern GLboolean GLAPIENTRY
  99 _mesa_IsTransformFeedback(GLuint name);
 100
 101 extern void GLAPIENTRY
 102 _mesa_BindTransformFeedback(GLenum target, GLuint name);
 103
 104 extern void GLAPIENTRY
 105 _mesa_DeleteTransformFeedbacks(GLsizei n, const GLuint *names);
 106
 107 extern void GLAPIENTRY
 108 _mesa_PauseTransformFeedback(void);
 109
 110 extern void GLAPIENTRY
 111 _mesa_ResumeTransformFeedback(void);
 112
 113 #else /* FEATURE_EXT_transform_feedback */
 114
 115 static inline GLboolean
 116 _mesa_validate_primitive_mode(struct gl_context *ctx, GLenum mode)
 117 {
 118    return GL_TRUE;
 119 }
 120
 121 static inline GLboolean
 122 _mesa_validate_transform_feedback_buffers(struct gl_context *ctx)
 123 {
 124    return GL_TRUE;
 125 }
 126
 127 static inline void
 128 _mesa_init_transform_feedback_functions(struct dd_function_table *driver)
 129 {
 130 }
 131
 132 static 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 */