1 /* $Id: stencil.h,v 1.2 1999/11/11 01:22:27 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999 Brian Paul All Rights Reserved.
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:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
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.
36 _mesa_ClearStencil( GLint s
);
40 _mesa_StencilFunc( GLenum func
, GLint ref
, GLuint mask
);
44 _mesa_StencilMask( GLuint mask
);
48 _mesa_StencilOp( GLenum fail
, GLenum zfail
, GLenum zpass
);
52 extern GLint
gl_stencil_span( GLcontext
*ctx
,
53 GLuint n
, GLint x
, GLint y
, GLubyte mask
[] );
56 extern void gl_depth_stencil_span( GLcontext
*ctx
, GLuint n
, GLint x
, GLint y
,
57 const GLdepth z
[], GLubyte mask
[] );
60 extern GLint
gl_stencil_pixels( GLcontext
*ctx
,
61 GLuint n
, const GLint x
[], const GLint y
[],
65 extern void gl_depth_stencil_pixels( GLcontext
*ctx
,
66 GLuint n
, const GLint x
[],
67 const GLint y
[], const GLdepth z
[],
71 extern void gl_read_stencil_span( GLcontext
*ctx
,
72 GLuint n
, GLint x
, GLint y
,
73 GLstencil stencil
[] );
76 extern void gl_write_stencil_span( GLcontext
*ctx
,
77 GLuint n
, GLint x
, GLint y
,
78 const GLstencil stencil
[] );
81 extern void gl_alloc_stencil_buffer( GLcontext
*ctx
);
84 extern void gl_clear_stencil_buffer( GLcontext
*ctx
);