src/mesa/main/feedback.h

   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 */