[PATCH v2 4/6] xf86/xv: Fill color key on expose

[Ville Syrjälä]

On Tue, Jan 18, 2011 at 03:37:17PM +0200, ext Pauli wrote:
> From: Pauli Nieminen <ext-pauli.nieminen at nokia.com>
> 
> If window gets exposed but clipboxes doesn't change drivers would avoid
> color key fill. This makes XResizeWindo&co to lose colorkey if
> background is painted.
> 
> To help drivers to avoid filling colorkey for each put server can
> provide helper function if there is exposed areas. Exposed areas can be
> stored in portPriv.
> 
> As a side effect we can avoid useless color key fills if window only
> moves in screen.
> 
> Signed-off-by: Pauli Nieminen <ext-pauli.nieminen at nokia.com>
> ---
>  hw/xfree86/common/xf86xv.c     |   51 ++++++++++++++++++++++++++++++++++++----
>  hw/xfree86/common/xf86xv.h     |    7 ++++-
>  hw/xfree86/common/xf86xvpriv.h |    1 +
>  3 files changed, 52 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/xfree86/common/xf86xv.c b/hw/xfree86/common/xf86xv.c
> index 6dcd497..95099c2 100644
> --- a/hw/xfree86/common/xf86xv.c
> +++ b/hw/xfree86/common/xf86xv.c
> @@ -590,6 +590,7 @@ xf86XVInitAdaptors(
>  	  portPriv->pScrn = pScrn;
>  	  portPriv->AdaptorRec = adaptorPriv;
>  	  portPriv->DevPriv.ptr = adaptorPtr->pPortPrivates[i].ptr;
> +	  RegionNull(&portPriv->exposedAreas);
>  
>  	  pp++;
>  	  numPort++;
> @@ -1007,6 +1008,8 @@ xf86XVEnlistPortInWindow(WindowPtr pWin, XvPortRecPrivatePtr portPriv)
>     }
>  
>     portPriv->pDraw = (DrawablePtr)pWin;
> +   /* Make sure hat auto color key is going to be filled */
> +   RegionCopy(&portPriv->exposedAreas, &pWin->clipList);
>  
>     return Success;
>  }
> @@ -1033,6 +1036,7 @@ xf86XVRemovePortFromWindow(WindowPtr pWin, XvPortRecPrivatePtr portPriv)
>  	winPriv = winPriv->next;
>       }
>       portPriv->pDraw = NULL;
> +     RegionEmpty(&portPriv->exposedAreas);
>  }
>  
>  static void
> @@ -1120,6 +1124,7 @@ xf86XVDestroyWindow(WindowPtr pWin)
>       }
>  
>       pPriv->pDraw = NULL;
> +     RegionEmpty(&pPriv->exposedAreas);
>       tmp = WinPriv;
>       WinPriv = WinPriv->next;
>       free(tmp);
> @@ -1165,6 +1170,13 @@ xf86XVWindowExposures(WindowPtr pWin, RegionPtr reg1, RegionPtr reg2)
>       if (!pPriv->type && !pPriv->AdaptorRec->ReputImage)
>  	visible = !AreasExposed;
>  
> +     if (visible) {
> +        RegionRec tmp;

RegionNull(&tmp) is needed...

> +        RegionCopy(&tmp, reg1);

..otherwise this may do bad things.

> +        RegionTranslate(&tmp, pWin->drawable.x, pWin->drawable.y);
> +        RegionUnion(&pPriv->exposedAreas, &pPriv->exposedAreas, &tmp);
> +     }
> +
>       WinPriv = WinPriv->next;
>       xf86XVReputOrStopPort(pPriv, pWin, visible);
>    }
> @@ -1859,13 +1871,42 @@ xf86XVQueryImageAttributes(
>  			format->id, width, height, pitches, offsets);
>  }
>  
> +Bool
> +xf86XVGetPortFillArea (DrawablePtr pDraw, pointer data, RegionPtr clipboxes, RegionPtr fillboxes)
> +{
> +    WindowPtr pWin = (WindowPtr)pDraw;
> +    XF86XVWindowPtr WinPriv = GET_XF86XV_WINDOW(pWin);
> +    XvPortRecPrivatePtr portPriv = NULL;
> +
> +    while (WinPriv) {
> +	XvPortRecPrivatePtr pPriv = WinPriv->PortRec;
> +
> +	if (data == pPriv->DevPriv.ptr) {
> +	    portPriv = pPriv;
> +	    break;
> +	}
> +
> +	WinPriv = WinPriv->next;
> +    }
> +
> +    if (!portPriv)
> +	return FALSE;
> +
> +    RegionIntersect(fillboxes, clipboxes, &portPriv->exposedAreas);
> +    RegionEmpty(&portPriv->exposedAreas);
> +    if (RegionNotEmpty(fillboxes))
> +        return TRUE;
> +
> +    return FALSE;

return RegionNotEmpty(fillboxes);

> +}
> +
>  void
> -xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr clipboxes)
> +xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr fillboxes)
>  {
>     ScreenPtr pScreen = pDraw->pScreen;
>     ChangeGCVal pval[2];
> -   BoxPtr pbox = RegionRects(clipboxes);
> -   int i, nbox = RegionNumRects(clipboxes);
> +   BoxPtr pbox = RegionRects(fillboxes);
> +   int i, nbox = RegionNumRects(fillboxes);
>     xRectangle *rects;
>     GCPtr gc;
>  
> @@ -1894,9 +1935,9 @@ xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr clipboxes)
>  }
>  
>  void
> -xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr clipboxes)
> +xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr fillboxes)
>  {
> -    xf86XVFillKeyHelperDrawable (&pScreen->root->drawable, key, clipboxes);
> +    xf86XVFillKeyHelperDrawable (&pScreen->root->drawable, key, fillboxes);
>  }
>  
>  /* xf86XVClipVideoHelper -
> diff --git a/hw/xfree86/common/xf86xv.h b/hw/xfree86/common/xf86xv.h
> index 47061fe..3243ccc 100644
> --- a/hw/xfree86/common/xf86xv.h
> +++ b/hw/xfree86/common/xf86xv.h
> @@ -239,10 +239,13 @@ extern _X_EXPORT XF86VideoAdaptorPtr xf86XVAllocateVideoAdaptorRec(ScrnInfoPtr p
>  extern _X_EXPORT void xf86XVFreeVideoAdaptorRec(XF86VideoAdaptorPtr ptr);
>  
>  extern _X_EXPORT void
> -xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr clipboxes);
> +xf86XVFillKeyHelper (ScreenPtr pScreen, CARD32 key, RegionPtr fillboxes);
>  
>  extern _X_EXPORT void
> -xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr clipboxes);
> +xf86XVFillKeyHelperDrawable (DrawablePtr pDraw, CARD32 key, RegionPtr fillboxes);
> +
> +extern _X_EXPORT Bool
> +xf86XVGetPortFillArea (DrawablePtr pDraw, pointer data, RegionPtr clipboxes, RegionPtr fillboxes);
>  
>  extern _X_EXPORT Bool
>  xf86XVClipVideoHelper(
> diff --git a/hw/xfree86/common/xf86xvpriv.h b/hw/xfree86/common/xf86xvpriv.h
> index 4572218..563b55a 100644
> --- a/hw/xfree86/common/xf86xvpriv.h
> +++ b/hw/xfree86/common/xf86xvpriv.h
> @@ -72,6 +72,7 @@ typedef struct {
>     Bool FreeCompositeClip;
>     XvAdaptorRecPrivatePtr AdaptorRec;
>     XvStatus isOn;
> +   RegionRec exposedAreas;
>     int vid_x, vid_y, vid_w, vid_h;
>     int drw_x, drw_y, drw_w, drw_h;
>     DevUnion DevPriv;
> -- 
> 1.7.0.4
> 
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-- 
Ville Syrjälä