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  1. /*
  2.  * Mesa 3-D graphics library
  3.  * Version:  7.5
  4.  *
  5.  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  6.  * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
  7.  *
  8.  * Permission is hereby granted, free of charge, to any person obtaining a
  9.  * copy of this software and associated documentation files (the "Software"),
  10.  * to deal in the Software without restriction, including without limitation
  11.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12.  * and/or sell copies of the Software, and to permit persons to whom the
  13.  * Software is furnished to do so, subject to the following conditions:
  14.  *
  15.  * The above copyright notice and this permission notice shall be included
  16.  * in all copies or substantial portions of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21.  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22.  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23.  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24.  */
  25.  
  26. #ifndef FEEDBACK_H
  27. #define FEEDBACK_H
  28.  
  29.  
  30. #include "main/mtypes.h"
  31.  
  32.  
  33. #if FEATURE_feedback
  34.  
  35. extern void
  36. _mesa_feedback_vertex( struct gl_context *ctx,
  37.                        const GLfloat win[4],
  38.                        const GLfloat color[4],
  39.                        const GLfloat texcoord[4] );
  40.  
  41.  
  42. static INLINE void
  43. _mesa_feedback_token( struct gl_context *ctx, GLfloat token )
  44. {
  45.    if (ctx->Feedback.Count < ctx->Feedback.BufferSize) {
  46.       ctx->Feedback.Buffer[ctx->Feedback.Count] = token;
  47.    }
  48.    ctx->Feedback.Count++;
  49. }
  50.  
  51.  
  52. extern void
  53. _mesa_update_hitflag( struct gl_context *ctx, GLfloat z );
  54.  
  55.  
  56. extern void
  57. _mesa_init_feedback_dispatch(struct _glapi_table *disp);
  58.  
  59. #else /* FEATURE_feedback */
  60.  
  61. #include "main/compiler.h"
  62.  
  63. static INLINE void
  64. _mesa_feedback_vertex( struct gl_context *ctx,
  65.                        const GLfloat win[4],
  66.                        const GLfloat color[4],
  67.                        const GLfloat texcoord[4] )
  68. {
  69.    /* render mode is always GL_RENDER */
  70.    ASSERT_NO_FEATURE();
  71. }
  72.  
  73.  
  74. static INLINE void
  75. _mesa_feedback_token( struct gl_context *ctx, GLfloat token )
  76. {
  77.    /* render mode is always GL_RENDER */
  78.    ASSERT_NO_FEATURE();
  79. }
  80.  
  81. static INLINE void
  82. _mesa_update_hitflag( struct gl_context *ctx, GLfloat z )
  83. {
  84.    /* render mode is always GL_RENDER */
  85.    ASSERT_NO_FEATURE();
  86. }
  87.  
  88. static INLINE void
  89. _mesa_init_feedback_dispatch(struct _glapi_table *disp)
  90. {
  91. }
  92.  
  93. #endif /* FEATURE_feedback */
  94.  
  95. extern void
  96. _mesa_init_feedback( struct gl_context *ctx );
  97.  
  98. #endif /* FEEDBACK_H */
  99.