src/mesa/drivers/dri/gamma/gamma_lock.c

   1
   2 #include "gamma_context.h"
   3 #include "gamma_lock.h"
   4 #include "drirenderbuffer.h"
   5
   6 #ifdef DEBUG_LOCKING
   7 char *prevLockFile = NULL;
   8 int prevLockLine = 0;
   9 #endif
  10
  11
  12 /* Update the hardware state.  This is called if another context has
  13  * grabbed the hardware lock, which includes the X server.  This
  14  * function also updates the driver's window state after the X server
  15  * moves, resizes or restacks a window -- the change will be reflected
  16  * in the drawable position and clip rects.  Since the X server grabs
  17  * the hardware lock when it changes the window state, this routine will
  18  * automatically be called after such a change.
  19  */
  20 void gammaGetLock( gammaContextPtr gmesa, GLuint flags )
  21 {
  22    __DRIdrawablePrivate *dPriv = gmesa->driDrawable;
  23    __DRIscreenPrivate *sPriv = gmesa->driScreen;
  24
  25    drmGetLock( gmesa->driFd, gmesa->hHWContext, flags );
  26
  27    /* The window might have moved, so we might need to get new clip
  28     * rects.
  29     *
  30     * NOTE: This releases and regrabs the hw lock to allow the X server
  31     * to respond to the DRI protocol request for new drawable info.
  32     * Since the hardware state depends on having the latest drawable
  33     * clip rects, all state checking must be done _after_ this call.
  34     */
  35    DRI_VALIDATE_DRAWABLE_INFO( sPriv, dPriv );
  36
  37    if ( gmesa->lastStamp != dPriv->lastStamp ) {
  38       driUpdateFramebufferSize(gmesa->glCtx, dPriv);
  39       gmesa->lastStamp = dPriv->lastStamp;
  40       gmesa->new_state |= GAMMA_NEW_WINDOW | GAMMA_NEW_CLIP;
  41    }
  42
  43    gmesa->numClipRects = dPriv->numClipRects;
  44    gmesa->pClipRects = dPriv->pClipRects;
  45
  46 #if 0
  47    gmesa->dirty = ~0;
  48
  49    if ( sarea->ctxOwner != gmesa->hHWContext ) {
  50       sarea->ctxOwner = gmesa->hHWContext;
  51       gmesa->dirty = GAMMA_UPLOAD_ALL;
  52    }
  53
  54    for ( i = 0 ; i < gmesa->lastTexHeap ; i++ ) {
  55       if ( sarea->texAge[i] != gmesa->lastTexAge[i] ) {
  56          gammaAgeTextures( gmesa, i );
  57       }
  58    }
  59 #endif
  60 }