| /* -*- mode: c; c-basic-offset: 3 -*- |
| * |
| * Copyright 2000 VA Linux Systems Inc., Fremont, California. |
| * |
| * 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * VA LINUX SYSTEMS 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. |
| */ |
| /* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/tdfx_lock.h,v 1.3 2002/02/22 21:45:03 dawes Exp $ */ |
| |
| /* |
| * Original rewrite: |
| * Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000 |
| * |
| * Authors: |
| * Gareth Hughes <gareth@valinux.com> |
| * |
| */ |
| |
| #ifndef __TDFX_LOCK_H__ |
| #define __TDFX_LOCK_H__ |
| |
| /* You can turn this on to find locking conflicts. |
| */ |
| #define DEBUG_LOCKING 0 |
| |
| #if DEBUG_LOCKING |
| extern char *prevLockFile; |
| extern int prevLockLine; |
| |
| #define DEBUG_LOCK() \ |
| do { \ |
| prevLockFile = (__FILE__); \ |
| prevLockLine = (__LINE__); \ |
| } while (0) |
| |
| #define DEBUG_RESET() \ |
| do { \ |
| prevLockFile = 0; \ |
| prevLockLine = 0; \ |
| } while (0) |
| |
| #define DEBUG_CHECK_LOCK() \ |
| do { \ |
| if ( prevLockFile ) { \ |
| fprintf( stderr, \ |
| "LOCK SET!\n\tPrevious %s:%d\n\tCurrent: %s:%d\n", \ |
| prevLockFile, prevLockLine, __FILE__, __LINE__ ); \ |
| exit( 1 ); \ |
| } \ |
| } while (0) |
| |
| #else |
| |
| #define DEBUG_LOCK() |
| #define DEBUG_RESET() |
| #define DEBUG_CHECK_LOCK() |
| |
| #endif /* DEBUG_LOCKING */ |
| |
| |
| extern void tdfxGetLock( tdfxContextPtr fxMesa ); |
| |
| |
| /* !!! We may want to separate locks from locks with validation. |
| This could be used to improve performance for those things |
| commands that do not do any drawing !!! */ |
| |
| #define DRM_LIGHT_LOCK_RETURN(fd,lock,context,__ret) \ |
| do { \ |
| DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \ |
| if (__ret) drmGetLock(fd,context,0); \ |
| } while(0) |
| |
| #define LOCK_HARDWARE( fxMesa ) \ |
| do { \ |
| char __ret = 0; \ |
| \ |
| DEBUG_CHECK_LOCK(); \ |
| DRM_CAS( fxMesa->driHwLock, fxMesa->hHWContext, \ |
| DRM_LOCK_HELD | fxMesa->hHWContext, __ret ); \ |
| if ( __ret ) { \ |
| tdfxGetLock( fxMesa ); \ |
| } \ |
| DEBUG_LOCK(); \ |
| } while (0) |
| |
| /* Unlock the hardware using the global current context */ |
| #define UNLOCK_HARDWARE( fxMesa ) \ |
| do { \ |
| DRM_UNLOCK( fxMesa->driFd, fxMesa->driHwLock, fxMesa->hHWContext ); \ |
| DEBUG_RESET(); \ |
| } while (0) |
| |
| /* |
| * This pair of macros makes a loop over the drawing operations |
| * so it is not self contained and doesn't have the nice single |
| * statement semantics of most macros. |
| */ |
| #define BEGIN_CLIP_LOOP(fxMesa) \ |
| do { \ |
| LOCK_HARDWARE( fxMesa ); \ |
| BEGIN_CLIP_LOOP_LOCKED( fxMesa ) |
| |
| #define BEGIN_CLIP_LOOP_LOCKED(fxMesa) \ |
| do { \ |
| int _nc = fxMesa->numClipRects; \ |
| while (_nc--) { \ |
| if (fxMesa->numClipRects > 1) { \ |
| int _height = fxMesa->screen_height; \ |
| fxMesa->Glide.grClipWindow(fxMesa->pClipRects[_nc].x1, \ |
| _height - fxMesa->pClipRects[_nc].y2, \ |
| fxMesa->pClipRects[_nc].x2, \ |
| _height - fxMesa->pClipRects[_nc].y1); \ |
| } |
| |
| |
| #define END_CLIP_LOOP_LOCKED( fxMesa ) \ |
| } \ |
| } while (0) |
| |
| #define END_CLIP_LOOP( fxMesa ) \ |
| END_CLIP_LOOP_LOCKED( fxMesa ); \ |
| UNLOCK_HARDWARE( fxMesa ); \ |
| } while (0) |
| |
| #endif /* __TDFX_LOCK_H__ */ |