0,0 → 1,59 |
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/* |
* Mesa 3-D graphics library |
* |
* Copyright (C) 1999-2001 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. |
*/ |
|
/* |
* Clip test function interface for assembly code. Simply define |
* FRAME_OFFSET to the number of bytes pushed onto the stack before |
* using the ARG_* argument macros. |
* |
* Gareth Hughes |
*/ |
|
#ifndef __CLIP_ARGS_H__ |
#define __CLIP_ARGS_H__ |
|
/* |
* Offsets for clip_func arguments |
* |
* typedef GLvector4f *(*clip_func)( GLvector4f *clip_vec, |
* GLvector4f *proj_vec, |
* GLubyte clipMask[], |
* GLubyte *orMask, |
* GLubyte *andMask ); |
*/ |
|
#define OFFSET_SOURCE 4 |
#define OFFSET_DEST 8 |
#define OFFSET_CLIP 12 |
#define OFFSET_OR 16 |
#define OFFSET_AND 20 |
|
#define ARG_SOURCE REGOFF(FRAME_OFFSET+OFFSET_SOURCE, ESP) |
#define ARG_DEST REGOFF(FRAME_OFFSET+OFFSET_DEST, ESP) |
#define ARG_CLIP REGOFF(FRAME_OFFSET+OFFSET_CLIP, ESP) |
#define ARG_OR REGOFF(FRAME_OFFSET+OFFSET_OR, ESP) |
#define ARG_AND REGOFF(FRAME_OFFSET+OFFSET_AND, ESP) |
|
#endif |