Revert "Revert "check for no blur and exit early""

This reverts commit 8825a09fc88f46dcec1d547dfbe7457ea224790b.

Bug: skia:
Change-Id: I01df7bf9e398012b5320655da3cab306256e31fb
Reviewed-on: https://skia-review.googlesource.com/25740
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/core/SkMaskBlurFilter.cpp b/src/core/SkMaskBlurFilter.cpp
index 0f0286354c..42837f79a9 100644
--- a/src/core/SkMaskBlurFilter.cpp
+++ b/src/core/SkMaskBlurFilter.cpp
@@ -70,6 +70,10 @@ SkMaskBlurFilter::SkMaskBlurFilter(double sigmaW, double sigmaH)
     , fBuffer2{skstd::make_unique_default<uint32_t[]>(bufferSize(2))} {
 }
 
+bool SkMaskBlurFilter::hasNoBlur() const {
+    return fInfoW.weight() <= 1 && fInfoH.weight() <= 1;
+}
+
 SkIPoint SkMaskBlurFilter::blur(const SkMask& src, SkMask* dst) const {
 
     uint64_t weightW = fInfoW.weight();
@@ -146,7 +150,7 @@ SkIPoint SkMaskBlurFilter::blur(const SkMask& src, SkMask* dst) const {
         }
     } else {
         // Copy to dst. No Blur.
-
+        SkASSERT(false);    // should not get here
         for (size_t y = 0; y < srcH; y++) {
             std::memcpy(&dst->fImage[y * dst->fRowBytes], &src.fImage[y * src.fRowBytes], dstW);
         }