2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 #include "s_context.h"
35 _swrast_zbuffer_address(GLcontext
*ctx
, GLint x
, GLint y
);
39 _swrast_depth_test_span( GLcontext
*ctx
, struct sw_span
*span
);
43 _swrast_depth_bounds_test( GLcontext
*ctx
, struct sw_span
*span
);
47 _swrast_read_depth_span( GLcontext
*ctx
,
48 GLint n
, GLint x
, GLint y
, GLdepth depth
[] );
52 _swrast_read_depth_span_float( GLcontext
*ctx
, GLint n
, GLint x
, GLint y
,
57 _swrast_alloc_depth_buffer( GLframebuffer
*buffer
);
61 _swrast_clear_depth_buffer( GLcontext
*ctx
);