src/mesa/main/feedback.h

   1 /* $Id: feedback.h,v 1.2 1999/09/18 20:41:23 keithw Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.1
   6  *
   7  * Copyright (C) 1999  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28
  29
  30
  31 #ifndef FEEDBACK_H
  32 #define FEEDBACK_H
  33
  34
  35 #include "types.h"
  36
  37
  38 #define FEEDBACK_TOKEN( CTX, T )                                \
  39         if (CTX->Feedback.Count < CTX->Feedback.BufferSize) {   \
  40            CTX->Feedback.Buffer[CTX->Feedback.Count] = (GLfloat) (T); \
  41         }                                                       \
  42         CTX->Feedback.Count++;
  43
  44
  45 extern void gl_feedback_vertex( GLcontext *ctx,
  46                                 const GLfloat win[4],
  47                                 const GLfloat color[4],
  48                                 GLuint index,
  49                                 const GLfloat texcoord[4] );
  50
  51
  52 extern void gl_update_hitflag( GLcontext *ctx, GLfloat z );
  53
  54
  55 extern void gl_PassThrough( GLcontext *ctx, GLfloat token );
  56
  57 extern void gl_FeedbackBuffer( GLcontext *ctx, GLsizei size,
  58                                GLenum type, GLfloat *buffer );
  59
  60 extern void gl_SelectBuffer( GLcontext *ctx, GLsizei size, GLuint *buffer );
  61
  62 extern void gl_InitNames( GLcontext *ctx );
  63
  64 extern void gl_LoadName( GLcontext *ctx, GLuint name );
  65
  66 extern void gl_PushName( GLcontext *ctx, GLuint name );
  67
  68 extern void gl_PopName( GLcontext *ctx );
  69
  70 extern GLint gl_RenderMode( GLcontext *ctx, GLenum mode );
  71
  72 extern void gl_feedback_points( GLcontext *ctx, GLuint first, GLuint last );
  73 extern void gl_feedback_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv );
  74 extern void gl_feedback_triangle( GLcontext *ctx, GLuint v0, GLuint v1,
  75                                   GLuint v2, GLuint pv );
  76
  77 extern void gl_select_points( GLcontext *ctx, GLuint first, GLuint last );
  78 extern void gl_select_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv );
  79 extern void gl_select_triangle( GLcontext *ctx, GLuint v0, GLuint v1,
  80                                 GLuint v2, GLuint pv );
  81
  82 #endif
  83