Use SkSamplingOptions when creating image-shader

Test: make

Change-Id: Ie979cdb10263a08ea3d8c817234b94c9b61abb76
diff --git a/libs/hwui/SkiaCanvas.cpp b/libs/hwui/SkiaCanvas.cpp
index 9a4ed81..acb74f4 100644
--- a/libs/hwui/SkiaCanvas.cpp
+++ b/libs/hwui/SkiaCanvas.cpp
@@ -669,7 +669,10 @@
     if (paint) {
         pnt = *paint;
     }
-    pnt.setShader(bitmap.makeImage()->makeShader());
+    SkSamplingOptions sampling(pnt.isFilterBitmap() ? SkFilterMode::kLinear
+                                                    : SkFilterMode::kNearest,
+                               SkMipmapMode::kNone);
+    pnt.setShader(bitmap.makeImage()->makeShader(sampling));
     auto v = builder.detach();
     apply_looper(&pnt, [&](const SkPaint& p) {
         mCanvas->drawVertices(v, SkBlendMode::kModulate, p);
diff --git a/libs/hwui/hwui/Paint.h b/libs/hwui/hwui/Paint.h
index e75e9e7..05bae5c 100644
--- a/libs/hwui/hwui/Paint.h
+++ b/libs/hwui/hwui/Paint.h
@@ -137,6 +137,9 @@
     bool isDevKern() const { return mDevKern; }
     void setDevKern(bool d) { mDevKern = d; }
 
+    // Deprecated -- bitmapshaders will be taking this flag explicitly
+    bool isFilterBitmap() const { return this->getFilterQuality() != kNone_SkFilterQuality; }
+
     // The Java flags (Paint.java) no longer fit into the native apis directly.
     // These methods handle converting to and from them and the native representations
     // in android::Paint.
@@ -149,7 +152,7 @@
     // The only respected flags are : [ antialias, dither, filterBitmap ]
     static uint32_t GetSkPaintJavaFlags(const SkPaint&);
     static void SetSkPaintJavaFlags(SkPaint*, uint32_t flags);
- 
+
 private:
     SkFont mFont;
     sk_sp<SkDrawLooper> mLooper;
diff --git a/libs/hwui/jni/Shader.cpp b/libs/hwui/jni/Shader.cpp
index 45795ff..aaec60b 100644
--- a/libs/hwui/jni/Shader.cpp
+++ b/libs/hwui/jni/Shader.cpp
@@ -61,7 +61,7 @@
 ///////////////////////////////////////////////////////////////////////////////////////////////
 
 static jlong BitmapShader_constructor(JNIEnv* env, jobject o, jlong matrixPtr, jlong bitmapHandle,
-        jint tileModeX, jint tileModeY) {
+        jint tileModeX, jint tileModeY, bool filter) {
     const SkMatrix* matrix = reinterpret_cast<const SkMatrix*>(matrixPtr);
     sk_sp<SkImage> image;
     if (bitmapHandle) {
@@ -74,8 +74,10 @@
         SkBitmap bitmap;
         image = SkMakeImageFromRasterBitmap(bitmap, kNever_SkCopyPixelsMode);
     }
+    SkSamplingOptions sampling(filter ? SkFilterMode::kLinear : SkFilterMode::kNearest,
+                               SkMipmapMode::kNone);
     sk_sp<SkShader> shader = image->makeShader(
-            (SkTileMode)tileModeX, (SkTileMode)tileModeY);
+            (SkTileMode)tileModeX, (SkTileMode)tileModeY, sampling);
     ThrowIAE_IfNull(env, shader.get());
 
     if (matrix) {
@@ -291,7 +293,7 @@
 };
 
 static const JNINativeMethod gBitmapShaderMethods[] = {
-    { "nativeCreate",      "(JJII)J",  (void*)BitmapShader_constructor },
+    { "nativeCreate",      "(JJIIZ)J",  (void*)BitmapShader_constructor },
 };
 
 static const JNINativeMethod gLinearGradientMethods[] = {
diff --git a/libs/hwui/tests/common/scenes/BitmapShaders.cpp b/libs/hwui/tests/common/scenes/BitmapShaders.cpp
index c4067af..03aeb55 100644
--- a/libs/hwui/tests/common/scenes/BitmapShaders.cpp
+++ b/libs/hwui/tests/common/scenes/BitmapShaders.cpp
@@ -44,15 +44,16 @@
                     skCanvas.drawRect(SkRect::MakeXYWH(100, 100, 100, 100), skPaint);
                 });
 
+        SkSamplingOptions sampling;
         Paint paint;
         sk_sp<SkImage> image = hwuiBitmap->makeImage();
         sk_sp<SkShader> repeatShader =
-                image->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat);
+                image->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat, sampling);
         paint.setShader(std::move(repeatShader));
         canvas.drawRoundRect(0, 0, 500, 500, 50.0f, 50.0f, paint);
 
         sk_sp<SkShader> mirrorShader =
-                image->makeShader(SkTileMode::kMirror, SkTileMode::kMirror);
+                image->makeShader(SkTileMode::kMirror, SkTileMode::kMirror, sampling);
         paint.setShader(std::move(mirrorShader));
         canvas.drawRoundRect(0, 600, 500, 1100, 50.0f, 50.0f, paint);
     }
diff --git a/libs/hwui/tests/common/scenes/HwBitmapInCompositeShader.cpp b/libs/hwui/tests/common/scenes/HwBitmapInCompositeShader.cpp
index 5886ea3..564354f 100644
--- a/libs/hwui/tests/common/scenes/HwBitmapInCompositeShader.cpp
+++ b/libs/hwui/tests/common/scenes/HwBitmapInCompositeShader.cpp
@@ -74,6 +74,6 @@
 
     sk_sp<SkShader> createBitmapShader(Bitmap& bitmap) {
         sk_sp<SkImage> image = bitmap.makeImage();
-        return image->makeShader();
+        return image->makeShader(SkSamplingOptions());
     }
 };