src/mesa/main/stencil.h

   1 /* $Id: stencil.h,v 1.1 1999/08/19 00:55:41 jtg 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 STENCIL_H
  32 #define STENCIL_H
  33
  34
  35 #include "types.h"
  36
  37
  38 extern void gl_ClearStencil( GLcontext *ctx, GLint s );
  39
  40
  41 extern void gl_StencilFunc( GLcontext *ctx, GLenum func,
  42                             GLint ref, GLuint mask );
  43
  44
  45 extern void gl_StencilMask( GLcontext *ctx, GLuint mask );
  46
  47
  48 extern void gl_StencilOp( GLcontext *ctx, GLenum fail,
  49                           GLenum zfail, GLenum zpass );
  50
  51
  52
  53 extern GLint gl_stencil_span( GLcontext *ctx,
  54                               GLuint n, GLint x, GLint y, GLubyte mask[] );
  55
  56
  57 extern void gl_depth_stencil_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  58                                    const GLdepth z[], GLubyte mask[] );
  59
  60
  61 extern GLint gl_stencil_pixels( GLcontext *ctx,
  62                                 GLuint n, const GLint x[], const GLint y[],
  63                                 GLubyte mask[] );
  64
  65
  66 extern void gl_depth_stencil_pixels( GLcontext *ctx,
  67                                      GLuint n, const GLint x[],
  68                                      const GLint y[], const GLdepth z[],
  69                                      GLubyte mask[] );
  70
  71
  72 extern void gl_read_stencil_span( GLcontext *ctx,
  73                                   GLuint n, GLint x, GLint y,
  74                                   GLstencil stencil[] );
  75
  76
  77 extern void gl_write_stencil_span( GLcontext *ctx,
  78                                    GLuint n, GLint x, GLint y,
  79                                    const GLstencil stencil[] );
  80
  81
  82 extern void gl_alloc_stencil_buffer( GLcontext *ctx );
  83
  84
  85 extern void gl_clear_stencil_buffer( GLcontext *ctx );
  86
  87
  88 #endif