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/*
* Mesa 3-D graphics library
* Version: 6.5.1
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef S_DEPTH_H
#define S_DEPTH_H
#include "main/glheader.h"
#include "s_span.h"
struct gl_context;
struct gl_renderbuffer;
extern GLuint
_swrast_depth_test_span( struct gl_context *ctx, SWspan *span);
extern void
_swrast_depth_clamp_span( struct gl_context *ctx, SWspan *span );
extern GLboolean
_swrast_depth_bounds_test( struct gl_context *ctx, SWspan *span );
extern void
_swrast_read_depth_span_float( struct gl_context *ctx, struct gl_renderbuffer *rb,
GLint n, GLint x, GLint y, GLfloat depth[] );
extern void
_swrast_clear_depth_buffer(struct gl_context *ctx);
extern void
_swrast_clear_depth_stencil_buffer(struct gl_context *ctx);
#endif
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