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1901 | serge | 1 | /* |
2 | * Mesa 3-D graphics library |
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3 | * Version: 6.5.1 |
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4 | * |
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5 | * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. |
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6 | * |
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7 | * Permission is hereby granted, free of charge, to any person obtaining a |
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8 | * copy of this software and associated documentation files (the "Software"), |
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9 | * to deal in the Software without restriction, including without limitation |
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10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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11 | * and/or sell copies of the Software, and to permit persons to whom the |
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12 | * Software is furnished to do so, subject to the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice shall be included |
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15 | * in all copies or substantial portions of the Software. |
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16 | * |
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17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR 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/mtypes.h" |
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31 | #include "s_span.h" |
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32 | |||
33 | |||
34 | extern GLuint |
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35 | _swrast_depth_test_span( struct gl_context *ctx, SWspan *span); |
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36 | |||
37 | extern void |
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38 | _swrast_depth_clamp_span( struct gl_context *ctx, SWspan *span ); |
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39 | |||
40 | extern GLboolean |
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41 | _swrast_depth_bounds_test( struct gl_context *ctx, SWspan *span ); |
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42 | |||
43 | |||
44 | extern void |
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45 | _swrast_read_depth_span_float( struct gl_context *ctx, struct gl_renderbuffer *rb, |
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46 | GLint n, GLint x, GLint y, GLfloat depth[] ); |
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47 | |||
48 | |||
49 | extern void |
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50 | _swrast_read_depth_span_uint( struct gl_context *ctx, struct gl_renderbuffer *rb, |
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51 | GLint n, GLint x, GLint y, GLuint depth[] ); |
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52 | |||
53 | |||
54 | extern void |
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55 | _swrast_clear_depth_buffer( struct gl_context *ctx, struct gl_renderbuffer *rb ); |
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56 | |||
57 | |||
58 | #endif |