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/mtypes.h"
  31
  32
  33 #if FEATURE_feedback
  34
  35 #define _MESA_INIT_FEEDBACK_FUNCTIONS(driver, impl) \
  36    do {                                             \
  37       (driver)->RenderMode = impl ## RenderMode;    \
  38    } while (0)
  39
  40 extern void
  41 _mesa_feedback_vertex( GLcontext *ctx,
  42                        const GLfloat win[4],
  43                        const GLfloat color[4],
  44                        const GLfloat texcoord[4] );
  45
  46
  47 static INLINE void
  48 _mesa_feedback_token( GLcontext *ctx, GLfloat token )
  49 {
  50    if (ctx->Feedback.Count < ctx->Feedback.BufferSize) {
  51       ctx->Feedback.Buffer[ctx->Feedback.Count] = token;
  52    }
  53    ctx->Feedback.Count++;
  54 }
  55
  56
  57 extern void
  58 _mesa_update_hitflag( GLcontext *ctx, GLfloat z );
  59
  60
  61 extern void
  62 _mesa_init_feedback_dispatch(struct _glapi_table *disp);
  63
  64 #else /* FEATURE_feedback */
  65
  66 #include "main/compiler.h"
  67
  68 #define _MESA_INIT_FEEDBACK_FUNCTIONS(driver, impl) do { } while (0)
  69
  70 static INLINE void
  71 _mesa_feedback_vertex( GLcontext *ctx,
  72                        const GLfloat win[4],
  73                        const GLfloat color[4],
  74                        const GLfloat texcoord[4] )
  75 {
  76    /* render mode is always GL_RENDER */
  77    ASSERT_NO_FEATURE();
  78 }
  79
  80
  81 static INLINE void
  82 _mesa_feedback_token( GLcontext *ctx, GLfloat token )
  83 {
  84    /* render mode is always GL_RENDER */
  85    ASSERT_NO_FEATURE();
  86 }
  87
  88 static INLINE void
  89 _mesa_update_hitflag( GLcontext *ctx, GLfloat z )
  90 {
  91    /* render mode is always GL_RENDER */
  92    ASSERT_NO_FEATURE();
  93 }
  94
  95 static INLINE void
  96 _mesa_init_feedback_dispatch(struct _glapi_table *disp)
  97 {
  98 }
  99
 100 #endif /* FEATURE_feedback */
 101
 102 extern void
 103 _mesa_init_feedback( GLcontext *ctx );
 104
 105 #endif /* FEEDBACK_H */