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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5564 | serge | 1 | /* |
| 2 | * Mesa 3-D graphics library |
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| 3 | * |
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| 4 | * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the "Software"), |
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| 8 | * to deal in the Software without restriction, including without limitation |
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| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 11 | * Software is furnished to do so, subject to the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice shall be included |
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| 14 | * in all copies or substantial portions of the Software. |
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| 15 | * |
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 17 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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| 20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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| 21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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| 22 | * OTHER DEALINGS IN THE SOFTWARE. |
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| 23 | */ |
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| 24 | |||
| 25 | |||
| 26 | #ifndef S_DEPTH_H |
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| 27 | #define S_DEPTH_H |
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| 28 | |||
| 29 | |||
| 30 | #include "main/glheader.h" |
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| 31 | #include "s_span.h" |
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| 32 | |||
| 33 | struct gl_context; |
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| 34 | struct gl_renderbuffer; |
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| 35 | |||
| 36 | |||
| 37 | extern GLuint |
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| 38 | _swrast_depth_test_span( struct gl_context *ctx, SWspan *span); |
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| 39 | |||
| 40 | extern void |
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| 41 | _swrast_depth_clamp_span( struct gl_context *ctx, SWspan *span ); |
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| 42 | |||
| 43 | extern GLboolean |
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| 44 | _swrast_depth_bounds_test( struct gl_context *ctx, SWspan *span ); |
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| 45 | |||
| 46 | |||
| 47 | extern void |
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| 48 | _swrast_read_depth_span_float( struct gl_context *ctx, struct gl_renderbuffer *rb, |
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| 49 | GLint n, GLint x, GLint y, GLfloat depth[] ); |
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| 50 | |||
| 51 | extern void |
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| 52 | _swrast_clear_depth_buffer(struct gl_context *ctx); |
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| 53 | |||
| 54 | extern void |
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| 55 | _swrast_clear_depth_stencil_buffer(struct gl_context *ctx); |
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| 56 | |||
| 57 | |||
| 58 | #endif |