add asAShadowBlur for android to drawlooper
BUG=skia:
R=djsollen@google.com, scroggo@google.com
Review URL: https://codereview.chromium.org/253633003
git-svn-id: http://skia.googlecode.com/svn/trunk@14431 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/SkLayerDrawLooper.cpp b/src/effects/SkLayerDrawLooper.cpp
index fa590d2..aed2c9b 100644
--- a/src/effects/SkLayerDrawLooper.cpp
+++ b/src/effects/SkLayerDrawLooper.cpp
@@ -153,6 +153,50 @@
return true;
}
+bool SkLayerDrawLooper::asABlurShadow(BlurShadowRec* bsRec) const {
+ if (fCount != 2) {
+ return false;
+ }
+ const Rec* rec = fRecs;
+
+ // bottom layer needs to be just blur(maskfilter)
+ if ((rec->fInfo.fPaintBits & ~kMaskFilter_Bit)) {
+ return false;
+ }
+ if (SkXfermode::kSrc_Mode != rec->fInfo.fColorMode) {
+ return false;
+ }
+ const SkMaskFilter* mf = rec->fPaint.getMaskFilter();
+ if (NULL == mf) {
+ return false;
+ }
+ SkMaskFilter::BlurRec maskBlur;
+ if (!mf->asABlur(&maskBlur)) {
+ return false;
+ }
+
+ rec = rec->fNext;
+ // top layer needs to be "plain"
+ if (rec->fInfo.fPaintBits) {
+ return false;
+ }
+ if (SkXfermode::kDst_Mode != rec->fInfo.fColorMode) {
+ return false;
+ }
+ if (!rec->fInfo.fOffset.equals(0, 0)) {
+ return false;
+ }
+
+ if (bsRec) {
+ bsRec->fSigma = maskBlur.fSigma;
+ bsRec->fOffset = fRecs->fInfo.fOffset;
+ bsRec->fColor = fRecs->fPaint.getColor();
+ bsRec->fStyle = maskBlur.fStyle;
+ bsRec->fQuality = maskBlur.fQuality;
+ }
+ return true;
+}
+
///////////////////////////////////////////////////////////////////////////////
void SkLayerDrawLooper::flatten(SkWriteBuffer& buffer) const {