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author | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
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committer | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
commit | f4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch) | |
tree | 2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/extras/Mesa/src/mesa/drivers/dri/gamma/gamma_lock.h | |
parent | a840692edc9c6d19cd7c057f68e39c7d95eb767d (diff) | |
download | nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.gz nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.bz2 nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.zip |
Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:
Imported nx-X11-3.1.0-1.tar.gz
into Git repository
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/gamma/gamma_lock.h')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/gamma/gamma_lock.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/gamma/gamma_lock.h b/nx-X11/extras/Mesa/src/mesa/drivers/dri/gamma/gamma_lock.h new file mode 100644 index 000000000..2d117320d --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/gamma/gamma_lock.h @@ -0,0 +1,84 @@ +#ifndef __GAMMA_LOCK_H__ +#define __GAMMA_LOCK_H__ + +extern void gammaGetLock( gammaContextPtr gmesa, GLuint flags ); + +/* Turn DEBUG_LOCKING 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 + +/* + * !!! 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 and validate our state. + */ +#define LOCK_HARDWARE( gmesa ) \ + do { \ + char __ret = 0; \ + DEBUG_CHECK_LOCK(); \ + DRM_CAS( gmesa->driHwLock, gmesa->hHWContext, \ + (DRM_LOCK_HELD | gmesa->hHWContext), __ret ); \ + if ( __ret ) \ + gammaGetLock( gmesa, 0 ); \ + DEBUG_LOCK(); \ + } while (0) + +/* Unlock the hardware. + */ +#define UNLOCK_HARDWARE( gmesa ) \ + do { \ + DRM_UNLOCK( gmesa->driFd, \ + gmesa->driHwLock, \ + gmesa->hHWContext ); \ + DEBUG_RESET(); \ + } while (0) + +#define GAMMAHW_LOCK( gmesa ) \ + DRM_UNLOCK(gmesa->driFd, gmesa->driHwLock, gmesa->hHWContext); \ + DRM_SPINLOCK(&gmesa->driScreen->pSAREA->drawable_lock, \ + gmesa->driScreen->drawLockID); \ + VALIDATE_DRAWABLE_INFO_NO_LOCK(gmesa); + +#define GAMMAHW_UNLOCK( gmesa ) \ + DRM_SPINUNLOCK(&gmesa->driScreen->pSAREA->drawable_lock, \ + gmesa->driScreen->drawLockID); \ + VALIDATE_DRAWABLE_INFO_NO_LOCK_POST(gmesa); + +#endif /* __GAMMA_LOCK_H__ */ |