diff options
Diffstat (limited to 'xc/lib/GL/mesa/src/drv/r128/r128_lock.h')
| -rw-r--r-- | xc/lib/GL/mesa/src/drv/r128/r128_lock.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/xc/lib/GL/mesa/src/drv/r128/r128_lock.h b/xc/lib/GL/mesa/src/drv/r128/r128_lock.h new file mode 100644 index 000000000..7fd81f807 --- /dev/null +++ b/xc/lib/GL/mesa/src/drv/r128/r128_lock.h @@ -0,0 +1,134 @@ +/* $XFree86$ */ +/************************************************************************** + +Copyright 1999, 2000 ATI Technologies Inc. and Precision Insight, Inc., + Cedar Park, Texas. +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 +ATI, PRECISION INSIGHT 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. + +**************************************************************************/ + +/* + * Authors: + * Kevin E. Martin <kevin@precisioninsight.com> + * + */ + +#ifndef _R128_LOCK_H_ +#define _R128_LOCK_H_ + +#ifdef GLX_DIRECT_RENDERING + +/* Turn DEBUG_LOCKING on to find locking conflicts (see r128_init.h) */ +#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 + +/* + * !!! 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 !!! + */ + +/* Lock the hardware using the current context */ +#define LOCK_HARDWARE(CC) \ + do { \ + char __ret = 0; \ + __DRIcontextPrivate *cPriv = CC->driContext; \ + __DRIscreenPrivate *sPriv = CC->r128Screen->driScreen; \ + \ + DEBUG_CHECK_LOCK(); \ + DRM_CAS(&sPriv->pSAREA->lock, cPriv->hHWContext, \ + DRM_LOCK_HELD|cPriv->hHWContext, __ret); \ + if (__ret) { \ + /* We lost the context, so we need to request the lock from \ + the kernel and update our state. */ \ + drmGetLock(sPriv->fd, cPriv->hHWContext, 0); \ + XMesaUpdateState(cPriv); \ + } \ + DEBUG_LOCK(); \ + } while (0) + +/* Unlock the hardware using the current context */ +#define UNLOCK_HARDWARE(CC) \ + do { \ + __DRIcontextPrivate *cPriv = CC->driContext; \ + __DRIscreenPrivate *sPriv = CC->r128Screen->driScreen; \ + \ + DRM_UNLOCK(sPriv->fd, &sPriv->pSAREA->lock, cPriv->hHWContext); \ + DEBUG_RESET(); \ + } while (0) + +/* + * This pair of macros makes a loop over the drawing operations, so it + * is not self contained and does not have the nice single statement + * semantics of most macros. + */ +#define BEGIN_CLIP_LOOP(CC) \ + do { \ + __DRIdrawablePrivate *_dPriv = CC->driDrawable; \ + XF86DRIClipRectPtr _pc = _dPriv->pClipRects; \ + int _nc, _sc; \ + \ + for (_nc = _dPriv->numClipRects; _nc > 0; _nc -= 3, _pc += 3) { \ + _sc = (_nc <= 3) ? _nc : 3; \ + r128SetClipRects(CC, _pc, _sc) + +/* FIXME: This should be a function call to turn off aux clipping */ +#define END_CLIP_LOOP(CC) \ + R128CCE0(R128_CCE_PACKET0, R128_AUX_SC_CNTL, 0); \ + R128CCE(0x00000000); \ + R128CCE_SUBMIT_PACKETS(); \ + } \ + } while (0) + +#endif +#endif /* _R128_LOCK_H_ */ |