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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 70 | giacomo | 1 | /* $Id: clip_args.h,v 1.1 2003-03-13 12:11:48 giacomo Exp $ */ |
| 2 | |||
| 3 | /* |
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| 4 | * Mesa 3-D graphics library |
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| 5 | * Version: 3.5 |
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| 6 | * |
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| 7 | * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. |
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| 8 | * |
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 10 | * copy of this software and associated documentation files (the "Software"), |
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| 11 | * to deal in the Software without restriction, including without limitation |
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 14 | * Software is furnished to do so, subject to the following conditions: |
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| 15 | * |
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| 16 | * The above copyright notice and this permission notice shall be included |
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| 17 | * in all copies or substantial portions of the Software. |
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| 18 | * |
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | */ |
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| 26 | |||
| 27 | /* |
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| 28 | * Clip test function interface for assembly code. Simply define |
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| 29 | * FRAME_OFFSET to the number of bytes pushed onto the stack before |
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| 30 | * using the ARG_* argument macros. |
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| 31 | * |
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| 32 | * Gareth Hughes |
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| 33 | */ |
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| 34 | |||
| 35 | #ifndef __CLIP_ARGS_H__ |
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| 36 | #define __CLIP_ARGS_H__ |
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| 37 | |||
| 38 | /* |
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| 39 | * Offsets for clip_func arguments |
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| 40 | * |
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| 41 | * typedef GLvector4f *(*clip_func)( GLvector4f *clip_vec, |
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| 42 | * GLvector4f *proj_vec, |
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| 43 | * GLubyte clipMask[], |
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| 44 | * GLubyte *orMask, |
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| 45 | * GLubyte *andMask ); |
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| 46 | */ |
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| 47 | |||
| 48 | #define OFFSET_SOURCE 4 |
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| 49 | #define OFFSET_DEST 8 |
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| 50 | #define OFFSET_CLIP 12 |
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| 51 | #define OFFSET_OR 16 |
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| 52 | #define OFFSET_AND 20 |
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| 53 | |||
| 54 | #define ARG_SOURCE REGOFF(FRAME_OFFSET+OFFSET_SOURCE, ESP) |
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| 55 | #define ARG_DEST REGOFF(FRAME_OFFSET+OFFSET_DEST, ESP) |
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| 56 | #define ARG_CLIP REGOFF(FRAME_OFFSET+OFFSET_CLIP, ESP) |
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| 57 | #define ARG_OR REGOFF(FRAME_OFFSET+OFFSET_OR, ESP) |
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| 58 | #define ARG_AND REGOFF(FRAME_OFFSET+OFFSET_AND, ESP) |
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| 59 | |||
| 60 | #endif |