diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/NXcompositeext.h | 8 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/NXpicture.c | 98 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/NXwindow.c | 8 |
3 files changed, 112 insertions, 2 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXcompositeext.h b/nx-X11/programs/Xserver/hw/nxagent/NXcompositeext.h index b4433d6c1..38ac87e9b 100644 --- a/nx-X11/programs/Xserver/hw/nxagent/NXcompositeext.h +++ b/nx-X11/programs/Xserver/hw/nxagent/NXcompositeext.h @@ -33,7 +33,7 @@ #define COMPOSITE_NAME "Composite" #define COMPOSITE_MAJOR 0 -#define COMPOSITE_MINOR 2 +#define COMPOSITE_MINOR 4 #define CompositeRedirectAutomatic 0 #define CompositeRedirectManual 1 @@ -45,7 +45,11 @@ #define X_CompositeUnredirectSubwindows 4 #define X_CompositeCreateRegionFromBorderClip 5 #define X_CompositeNameWindowPixmap 6 +#define X_CompositeGetOverlayWindow 7 +#define X_CompositeReleaseOverlayWindow 8 -#define CompositeNumberRequests (X_CompositeNameWindowPixmap + 1) +#define CompositeNumberRequests (X_CompositeReleaseOverlayWindow + 1) + +#define CompositeNumberEvents 0 #endif /* _COMPOSITE_H_ */ diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXpicture.c b/nx-X11/programs/Xserver/hw/nxagent/NXpicture.c index 67cd5d6ed..5087fa493 100644 --- a/nx-X11/programs/Xserver/hw/nxagent/NXpicture.c +++ b/nx-X11/programs/Xserver/hw/nxagent/NXpicture.c @@ -1800,6 +1800,99 @@ FreePictFormat (void * pPictFormat, return Success; } +/** + * ReduceCompositeOp is used to choose simpler ops for cases where alpha + * channels are always one and so math on the alpha channel per pixel becomes + * unnecessary. It may also avoid destination reads sometimes if apps aren't + * being careful to avoid these cases. + */ +static CARD8 +ReduceCompositeOp (CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst) +{ + Bool no_src_alpha, no_dst_alpha; + + no_src_alpha = PICT_FORMAT_COLOR(pSrc->format) && + PICT_FORMAT_A(pSrc->format) == 0 && + pSrc->alphaMap == NULL && + pMask == NULL; + no_dst_alpha = PICT_FORMAT_COLOR(pDst->format) && + PICT_FORMAT_A(pDst->format) == 0 && + pDst->alphaMap == NULL; + + /* TODO, maybe: Conjoint and Disjoint op reductions? */ + + /* Deal with simplifications where the source alpha is always 1. */ + if (no_src_alpha) + { + switch (op) { + case PictOpOver: + op = PictOpSrc; + break; + case PictOpInReverse: + op = PictOpDst; + break; + case PictOpOutReverse: + op = PictOpClear; + break; + case PictOpAtop: + op = PictOpIn; + break; + case PictOpAtopReverse: + op = PictOpOverReverse; + break; + case PictOpXor: + op = PictOpOut; + break; + default: + break; + } + } + + /* Deal with simplifications when the destination alpha is always 1 */ + if (no_dst_alpha) + { + switch (op) { + case PictOpOverReverse: + op = PictOpDst; + break; + case PictOpIn: + op = PictOpSrc; + break; + case PictOpOut: + op = PictOpClear; + break; + case PictOpAtop: + op = PictOpOver; + break; + case PictOpXor: + op = PictOpOutReverse; + break; + default: + break; + } + } + + /* Reduce some con/disjoint ops to the basic names. */ + switch (op) { + case PictOpDisjointClear: + case PictOpConjointClear: + op = PictOpClear; + break; + case PictOpDisjointSrc: + case PictOpConjointSrc: + op = PictOpSrc; + break; + case PictOpDisjointDst: + case PictOpConjointDst: + op = PictOpDst; + break; + default: + break; + } + + return op; +} + void CompositePicture (CARD8 op, PicturePtr pSrc, @@ -1820,6 +1913,11 @@ CompositePicture (CARD8 op, if (pMask) ValidatePicture (pMask); ValidatePicture (pDst); + + op = ReduceCompositeOp (op, pSrc, pMask, pDst); + if (op == PictOpDst) + return; + (*ps->Composite) (op, pSrc, pMask, diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXwindow.c b/nx-X11/programs/Xserver/hw/nxagent/NXwindow.c index b2da4e97c..70c378b9e 100644 --- a/nx-X11/programs/Xserver/hw/nxagent/NXwindow.c +++ b/nx-X11/programs/Xserver/hw/nxagent/NXwindow.c @@ -717,6 +717,14 @@ ClippedRegionFromBox(register WindowPtr pWin, RegionPtr Rgn, RegionIntersect(Rgn, Rgn, &pWin->winSize); } +static RealChildHeadProc realChildHeadProc = NULL; + +void +RegisterRealChildHeadProc (RealChildHeadProc proc) +{ + realChildHeadProc = proc; +} + WindowPtr RealChildHead(register WindowPtr pWin) { |