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5563 | serge | 1 | |
2 | * Mesa 3-D graphics library |
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3 | * |
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4 | * Copyright (C) 1999-2001 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 | * Clip test function interface for assembly code. Simply define |
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27 | * FRAME_OFFSET to the number of bytes pushed onto the stack before |
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28 | * using the ARG_* argument macros. |
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29 | * |
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30 | * Gareth Hughes |
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31 | */ |
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32 | |||
33 | |||
34 | #define __CLIP_ARGS_H__ |
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35 | |||
36 | |||
37 | * Offsets for clip_func arguments |
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38 | * |
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39 | * typedef GLvector4f *(*clip_func)( GLvector4f *clip_vec, |
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40 | * GLvector4f *proj_vec, |
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41 | * GLubyte clipMask[], |
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42 | * GLubyte *orMask, |
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43 | * GLubyte *andMask ); |
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44 | */ |
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45 | |||
46 | |||
47 | #define OFFSET_DEST 8 |
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48 | #define OFFSET_CLIP 12 |
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49 | #define OFFSET_OR 16 |
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50 | #define OFFSET_AND 20 |
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51 | |||
52 | |||
53 | #define ARG_DEST REGOFF(FRAME_OFFSET+OFFSET_DEST, ESP) |
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54 | #define ARG_CLIP REGOFF(FRAME_OFFSET+OFFSET_CLIP, ESP) |
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55 | #define ARG_OR REGOFF(FRAME_OFFSET+OFFSET_OR, ESP) |
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56 | #define ARG_AND REGOFF(FRAME_OFFSET+OFFSET_AND, ESP) |
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57 | |||
58 | |||
59 |