Bug 1260351 - Image: Enable ConvolveVertically/Horizontally in LS3 MMI. r=tnikkel

---
 image/Downscaler.cpp      | 5 +++--
 image/DownscalingFilter.h | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

image/Downscaler.cpp

@@ -11,6 +11,7 @@
 #include "gfxPrefs.h"
 #include "image_operations.h"
 #include "mozilla/SSE.h"
+#include "mozilla/mips.h"
 #include "convolver.h"
 #include "skia/include/core/SkTypes.h"
 
@@ -228,7 +229,7 @@ Downscaler::CommitRow()
     if (mCurrentInLine == inLineToRead) {
       skia::ConvolveHorizontally(mRowBuffer.get(), *mXFilter,
                                  mWindow[mLinesInBuffer++], mHasAlpha,
-                                 supports_sse2());
+                                 supports_sse2() || supports_mmi());
     }
 
     MOZ_ASSERT(mCurrentOutLine < mTargetSize.height,
@@ -316,7 +317,7 @@ Downscaler::DownscaleInputLine()
     &mOutputBuffer[currentOutLine * mTargetSize.width * sizeof(uint32_t)];
   skia::ConvolveVertically(static_cast<const FilterValue*>(filterValues),
                            filterLength, mWindow.get(), mXFilter->num_values(),
-                           outputLine, mHasAlpha, supports_sse2());
+                           outputLine, mHasAlpha, supports_sse2() || supports_mmi());
 
   mCurrentOutLine += 1;
 

image/DownscalingFilter.h

@@ -23,6 +23,7 @@
 
 #include "mozilla/Maybe.h"
 #include "mozilla/SSE.h"
+#include "mozilla/mips.h"
 #include "mozilla/UniquePtr.h"
 #include "mozilla/gfx/2D.h"
 #include "gfxPrefs.h"
@@ -236,7 +237,7 @@ public:
     if (mInputRow == inputRowToRead) {
       skia::ConvolveHorizontally(mRowBuffer.get(), *mXFilter,
                                  mWindow[mRowsInWindow++], mHasAlpha,
-                                 supports_sse2());
+                                 supports_sse2() || supports_mmi());
     }
 
     MOZ_ASSERT(mOutputRow < mNext.InputSize().height,
@@ -311,7 +312,7 @@ private:
       skia::ConvolveVertically(static_cast<const FilterValue*>(filterValues),
                                filterLength, mWindow.get(), mXFilter->num_values(),
                                reinterpret_cast<uint8_t*>(aRow), mHasAlpha,
-                               supports_sse2());
+                               supports_sse2() || supports_mmi());
       return Some(WriteState::NEED_MORE_DATA);
     });