src/mesa/main/feedback.h

   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/mfeatures.h"
  31 #include "main/mtypes.h"
  32
  33
  34 extern GLint GLAPIENTRY
  35 _mesa_RenderMode( GLenum mode );
  36
  37 extern void
  38 _mesa_feedback_vertex( struct gl_context *ctx,
  39                        const GLfloat win[4],
  40                        const GLfloat color[4],
  41                        const GLfloat texcoord[4] );
  42
  43
  44 static inline void
  45 _mesa_feedback_token( struct gl_context *ctx, GLfloat token )
  46 {
  47    if (ctx->Feedback.Count < ctx->Feedback.BufferSize) {
  48       ctx->Feedback.Buffer[ctx->Feedback.Count] = token;
  49    }
  50    ctx->Feedback.Count++;
  51 }
  52
  53
  54 extern void
  55 _mesa_update_hitflag( struct gl_context *ctx, GLfloat z );
  56
  57
  58 extern void
  59 _mesa_init_feedback_dispatch(struct _glapi_table *disp);
  60
  61
  62 extern void
  63 _mesa_init_feedback( struct gl_context *ctx );
  64
  65 #endif /* FEEDBACK_H */