3 files changed, 15 insertions, 2 deletions
diff --git a/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContext.cpp b/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContext.cpp
index bb5d990..ce9ce5a 100644
--- a/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContext.cpp
+++ b/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContext.cpp
@@ -229,6 +229,16 @@ void PlatformGraphicsContext::setAlpha(float alpha)
     m_state->alpha = alpha;
 }
 
+int PlatformGraphicsContext::getNormalizedAlpha() const
+{
+    int alpha = roundf(m_state->alpha * 256);
+    if (alpha > 255)
+        alpha = 255;
+    else if (alpha < 0)
+        alpha = 0;
+    return alpha;
+}
+
 void PlatformGraphicsContext::setCompositeOperation(CompositeOperator op)
 {
     m_state->mode = WebCoreCompositeToSkiaComposite(op);
diff --git a/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContext.h b/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContext.h
index 601de0f..1916014 100644
--- a/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContext.h
+++ b/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContext.h
@@ -59,6 +59,7 @@ public:
 
     // State values
     virtual void setAlpha(float alpha);
+    int getNormalizedAlpha() const;
     virtual void setCompositeOperation(CompositeOperator op);
     virtual void setFillColor(const Color& c);
     virtual void setFillShader(SkShader* fillShader);
diff --git a/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextSkia.cpp b/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextSkia.cpp
index 9b32726..f00bb02 100644
--- a/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextSkia.cpp
+++ b/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextSkia.cpp
@@ -234,7 +234,8 @@ void PlatformGraphicsContextSkia::drawBitmapPattern(
                                                     SkShader::kRepeat_TileMode);
     shader->setLocalMatrix(matrix);
     SkPaint paint;
-    setupPaintFill(&paint);
+    setupPaintCommon(&paint);
+    paint.setAlpha(getNormalizedAlpha());
     paint.setShader(shader);
     paint.setXfermodeMode(WebCoreCompositeToSkiaComposite(compositeOp));
     fixPaintForBitmapsThatMaySeam(&paint);
@@ -246,7 +247,8 @@ void PlatformGraphicsContextSkia::drawBitmapRect(const SkBitmap& bitmap,
                                              CompositeOperator op)
 {
     SkPaint paint;
-    setupPaintFill(&paint);
+    setupPaintCommon(&paint);
+    paint.setAlpha(getNormalizedAlpha());
     paint.setXfermodeMode(WebCoreCompositeToSkiaComposite(op));
     fixPaintForBitmapsThatMaySeam(&paint);