src/mesa/main/feedback.h

   1
   2 /*
   3  * Mesa 3-D graphics library
   4  * Version:  3.5
   5  *
   6  * Copyright (C) 1999-2001  Brian Paul   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
  27 #ifndef FEEDBACK_H
  28 #define FEEDBACK_H
  29
  30
  31 #include "mtypes.h"
  32
  33
  34 #define FEEDBACK_TOKEN( CTX, T )                                \
  35         if (CTX->Feedback.Count < CTX->Feedback.BufferSize) {   \
  36            CTX->Feedback.Buffer[CTX->Feedback.Count] = (GLfloat) (T); \
  37         }                                                       \
  38         CTX->Feedback.Count++;
  39
  40
  41 extern void _mesa_feedback_vertex( GLcontext *ctx,
  42                                 const GLfloat win[4],
  43                                 const GLfloat color[4],
  44                                 GLuint index,
  45                                 const GLfloat texcoord[4] );
  46
  47
  48 extern void _mesa_update_hitflag( GLcontext *ctx, GLfloat z );
  49
  50
  51 extern void
  52 _mesa_PassThrough( GLfloat token );
  53
  54 extern void
  55 _mesa_FeedbackBuffer( GLsizei size, GLenum type, GLfloat *buffer );
  56
  57 extern void
  58 _mesa_SelectBuffer( GLsizei size, GLuint *buffer );
  59
  60 extern void
  61 _mesa_InitNames( void );
  62
  63 extern void
  64 _mesa_LoadName( GLuint name );
  65
  66 extern void
  67 _mesa_PushName( GLuint name );
  68
  69 extern void
  70 _mesa_PopName( void );
  71
  72 extern GLint
  73 _mesa_RenderMode( GLenum mode );
  74
  75
  76 #endif