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  1. /*
  2.  * Mesa 3-D graphics library
  3.  *
  4.  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  5.  * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
  6.  *
  7.  * Permission is hereby granted, free of charge, to any person obtaining a
  8.  * copy of this software and associated documentation files (the "Software"),
  9.  * to deal in the Software without restriction, including without limitation
  10.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11.  * and/or sell copies of the Software, and to permit persons to whom the
  12.  * Software is furnished to do so, subject to the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice shall be included
  15.  * in all copies or substantial portions of the Software.
  16.  *
  17.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21.  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22.  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23.  * 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. void GLAPIENTRY
  34. _mesa_FeedbackBuffer( GLsizei size, GLenum type, GLfloat *buffer );
  35. void GLAPIENTRY
  36. _mesa_PassThrough( GLfloat token );
  37. void GLAPIENTRY
  38. _mesa_SelectBuffer( GLsizei size, GLuint *buffer );
  39. void GLAPIENTRY
  40. _mesa_InitNames( void );
  41. void GLAPIENTRY
  42. _mesa_LoadName( GLuint name );
  43. void GLAPIENTRY
  44. _mesa_PushName( GLuint name );
  45. void GLAPIENTRY
  46. _mesa_PopName( void );
  47. GLint GLAPIENTRY
  48. _mesa_RenderMode( GLenum mode );
  49.  
  50. extern void
  51. _mesa_feedback_vertex( struct gl_context *ctx,
  52.                        const GLfloat win[4],
  53.                        const GLfloat color[4],
  54.                        const GLfloat texcoord[4] );
  55.  
  56.  
  57. static inline void
  58. _mesa_feedback_token( struct gl_context *ctx, GLfloat token )
  59. {
  60.    if (ctx->Feedback.Count < ctx->Feedback.BufferSize) {
  61.       ctx->Feedback.Buffer[ctx->Feedback.Count] = token;
  62.    }
  63.    ctx->Feedback.Count++;
  64. }
  65.  
  66.  
  67. extern void
  68. _mesa_update_hitflag( struct gl_context *ctx, GLfloat z );
  69.  
  70.  
  71. extern void
  72. _mesa_init_feedback( struct gl_context *ctx );
  73.  
  74. #endif /* FEEDBACK_H */
  75.