| /* |
| * Copyright 2000-2001 VA Linux Systems, Inc. |
| * (C) Copyright IBM Corporation 2004 |
| * 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 |
| * on the rights to use, copy, modify, merge, publish, distribute, sub |
| * license, 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 (including the next |
| * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL |
| * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS 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. |
| */ |
| |
| /** |
| * \file spantmp_common.h |
| * |
| * common macros for span read / write functions to be used in the depth, |
| * stencil and pixel span templates. |
| */ |
| |
| #ifndef HW_WRITE_LOCK |
| #define HW_WRITE_LOCK() HW_LOCK() |
| #endif |
| |
| #ifndef HW_WRITE_UNLOCK |
| #define HW_WRITE_UNLOCK() HW_UNLOCK() |
| #endif |
| |
| #ifndef HW_READ_LOCK |
| #define HW_READ_LOCK() HW_LOCK() |
| #endif |
| |
| #ifndef HW_READ_UNLOCK |
| #define HW_READ_UNLOCK() HW_UNLOCK() |
| #endif |
| |
| #ifndef HW_CLIPLOOP |
| #define HW_CLIPLOOP() \ |
| do { \ |
| int _nc = dPriv->numClipRects; \ |
| while ( _nc-- ) { \ |
| int minx = dPriv->pClipRects[_nc].x1 - dPriv->x; \ |
| int miny = dPriv->pClipRects[_nc].y1 - dPriv->y; \ |
| int maxx = dPriv->pClipRects[_nc].x2 - dPriv->x; \ |
| int maxy = dPriv->pClipRects[_nc].y2 - dPriv->y; |
| #endif |
| |
| #ifndef HW_ENDCLIPLOOP |
| #define HW_ENDCLIPLOOP() \ |
| } \ |
| } while (0) |
| #endif |
| |
| #ifndef CLIPPIXEL |
| #define CLIPPIXEL( _x, _y ) \ |
| ((_x >= minx) && (_x < maxx) && (_y >= miny) && (_y < maxy)) |
| #endif |
| |
| #ifndef CLIPSPAN |
| #define CLIPSPAN( _x, _y, _n, _x1, _n1, _i ) \ |
| if ( _y < miny || _y >= maxy /*|| _x + n < minx || _x >=maxx*/ ) { \ |
| _n1 = 0, _x1 = x; \ |
| } else { \ |
| _n1 = _n; \ |
| _x1 = _x; \ |
| if ( _x1 < minx ) _i += (minx-_x1), n1 -= (minx-_x1), _x1 = minx; \ |
| if ( _x1 + _n1 >= maxx ) n1 -= (_x1 + n1 - maxx); \ |
| } |
| #endif |
