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  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_primitive_mode(struct gl_context *ctx, GLenum mode);
  46.  
  47. extern GLboolean
  48. _mesa_validate_transform_feedback_buffers(struct gl_context *ctx);
  49.  
  50.  
  51. extern void
  52. _mesa_init_transform_feedback_functions(struct dd_function_table *driver);
  53.  
  54. extern void
  55. _mesa_init_transform_feedback_dispatch(struct _glapi_table *disp);
  56.  
  57.  
  58. /*** GL_EXT_transform_feedback ***/
  59.  
  60. extern void GLAPIENTRY
  61. _mesa_BeginTransformFeedback(GLenum mode);
  62.  
  63. extern void GLAPIENTRY
  64. _mesa_EndTransformFeedback(void);
  65.  
  66. extern void GLAPIENTRY
  67. _mesa_BindBufferRange(GLenum target, GLuint index,
  68.                       GLuint buffer, GLintptr offset, GLsizeiptr size);
  69.  
  70. extern void GLAPIENTRY
  71. _mesa_BindBufferBase(GLenum target, GLuint index, GLuint buffer);
  72.  
  73. extern void GLAPIENTRY
  74. _mesa_BindBufferOffsetEXT(GLenum target, GLuint index, GLuint buffer,
  75.                           GLintptr offset);
  76.  
  77. extern void GLAPIENTRY
  78. _mesa_TransformFeedbackVaryings(GLuint program, GLsizei count,
  79.                                 const GLchar **varyings, GLenum bufferMode);
  80.  
  81. extern void GLAPIENTRY
  82. _mesa_GetTransformFeedbackVarying(GLuint program, GLuint index,
  83.                                   GLsizei bufSize, GLsizei *length,
  84.                                   GLsizei *size, GLenum *type, GLchar *name);
  85.  
  86.  
  87.  
  88. /*** GL_ARB_transform_feedback2 ***/
  89.  
  90. extern void GLAPIENTRY
  91. _mesa_GenTransformFeedbacks(GLsizei n, GLuint *names);
  92.  
  93. extern GLboolean GLAPIENTRY
  94. _mesa_IsTransformFeedback(GLuint name);
  95.  
  96. extern void GLAPIENTRY
  97. _mesa_BindTransformFeedback(GLenum target, GLuint name);
  98.  
  99. extern void GLAPIENTRY
  100. _mesa_DeleteTransformFeedbacks(GLsizei n, const GLuint *names);
  101.  
  102. extern void GLAPIENTRY
  103. _mesa_PauseTransformFeedback(void);
  104.  
  105. extern void GLAPIENTRY
  106. _mesa_ResumeTransformFeedback(void);
  107.  
  108. extern void GLAPIENTRY
  109. _mesa_DrawTransformFeedback(GLenum mode, GLuint name);
  110.  
  111. #else /* FEATURE_EXT_transform_feedback */
  112.  
  113. static INLINE GLboolean
  114. _mesa_validate_primitive_mode(struct gl_context *ctx, GLenum mode)
  115. {
  116.    return GL_TRUE;
  117. }
  118.  
  119. static INLINE GLboolean
  120. _mesa_validate_transform_feedback_buffers(struct gl_context *ctx)
  121. {
  122.    return GL_TRUE;
  123. }
  124.  
  125. static INLINE void
  126. _mesa_init_transform_feedback_functions(struct dd_function_table *driver)
  127. {
  128. }
  129.  
  130. static INLINE void
  131. _mesa_init_transform_feedback_dispatch(struct _glapi_table *disp)
  132. {
  133. }
  134.  
  135. #endif /* FEATURE_EXT_transform_feedback */
  136.  
  137. #endif /* TRANSFORM_FEEDBACK_H */
  138.