diff options
Diffstat (limited to 'src/mesa/drivers/dri/nouveau/nouveau_lock.c')
-rw-r--r-- | src/mesa/drivers/dri/nouveau/nouveau_lock.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_lock.c b/src/mesa/drivers/dri/nouveau/nouveau_lock.c new file mode 100644 index 0000000000..1bd2ee4ca9 --- /dev/null +++ b/src/mesa/drivers/dri/nouveau/nouveau_lock.c @@ -0,0 +1,64 @@ +/************************************************************************** + +Copyright 2006 Stephane Marchesin +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 +ERIC ANHOLT OR SILICON INTEGRATED SYSTEMS CORP 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. + +**************************************************************************/ + + +#include "nouveau_context.h" +#include "nouveau_lock.h" + +#include "drirenderbuffer.h" + + +/* Update the hardware state. This is called if another context has + * grabbed the hardware lock, which includes the X server. This + * function also updates the driver's window state after the X server + * moves, resizes or restacks a window -- the change will be reflected + * in the drawable position and clip rects. Since the X server grabs + * the hardware lock when it changes the window state, this routine will + * automatically be called after such a change. + */ +void nouveauGetLock( nouveauContextPtr nmesa, GLuint flags ) +{ + __DRIdrawablePrivate *dPriv = nmesa->driDrawable; + __DRIscreenPrivate *sPriv = nmesa->driScreen; + drm_nouveau_sarea_t *sarea = nmesa->sarea; + int i; + + drmGetLock( nmesa->driFd, nmesa->hHWContext, flags ); + + /* The window might have moved, so we might need to get new clip + * rects. + * + * NOTE: This releases and regrabs the hw lock to allow the X server + * to respond to the DRI protocol request for new drawable info. + * Since the hardware state depends on having the latest drawable + * clip rects, all state checking must be done _after_ this call. + */ + DRI_VALIDATE_DRAWABLE_INFO( sPriv, dPriv ); + + nmesa->numClipRects = dPriv->numClipRects; + nmesa->pClipRects = dPriv->pClipRects; + +} |