stop using bitmap-filter flags outside of paint itself, as a step towards really changing them into an enum

BUG=

Review URL: https://codereview.chromium.org/19825002

git-svn-id: http://skia.googlecode.com/svn/trunk@10240 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/BitmapBench.cpp b/bench/BitmapBench.cpp
index d8363fc..a472d24 100644
--- a/bench/BitmapBench.cpp
+++ b/bench/BitmapBench.cpp
@@ -149,7 +149,7 @@
         int count = N;
 #ifdef SK_RELEASE
         // in DEBUG, N is always 1
-        if (paint.getFlags() & SkPaint::kHighQualityFilterBitmap_Flag) {
+        if (SkPaint::kHigh_FilterLevel == paint.getFilterLevel()) {
             count /= BICUBIC_DUR_SCALE;
         }
 #endif
@@ -170,7 +170,7 @@
 #ifdef SK_DEBUG
         return 1;
 #else
-        return (paint.getFlags() & SkPaint::kHighQualityFilterBitmap_Flag) ?
+        return SkPaint::kHigh_FilterLevel == paint.getFilterLevel() ?
                 (float)BICUBIC_DUR_SCALE : 1;
 #endif
     }
@@ -264,20 +264,28 @@
             canvas->rotate(SkIntToScalar(35));
             canvas->translate(-x, -y);
         }
-
-        uint32_t orMask = 0;
-        uint32_t clearMask = SkPaint::kFilterBitmap_Flag | SkPaint::kHighQualityFilterBitmap_Flag;
-        if (fFlags & kBilerp_Flag) {
-            orMask |= SkPaint::kFilterBitmap_Flag;
-        }
-        if (fFlags & kBicubic_Flag) {
-            orMask |= SkPaint::kHighQualityFilterBitmap_Flag;
-        }
-        this->setPaintMasks(orMask, clearMask);
-
         INHERITED::onDraw(canvas);
     }
 
+    virtual void setupPaint(SkPaint* paint) SK_OVERRIDE {
+        this->INHERITED::setupPaint(paint);
+
+        int index = 0;
+        if (fFlags & kBilerp_Flag) {
+            index |= 1;
+        }
+        if (fFlags & kBicubic_Flag) {
+            index |= 2;
+        }
+        static const SkPaint::FilterLevel gLevels[] = {
+            SkPaint::kNone_FilterLevel,
+            SkPaint::kLow_FilterLevel,
+            SkPaint::kMedium_FilterLevel,
+            SkPaint::kHigh_FilterLevel
+        };
+        paint->setFilterLevel(gLevels[index]);
+}
+
 private:
     typedef BitmapBench INHERITED;
 };
diff --git a/bench/BitmapScaleBench.cpp b/bench/BitmapScaleBench.cpp
index 561e096..2187346 100644
--- a/bench/BitmapScaleBench.cpp
+++ b/bench/BitmapScaleBench.cpp
@@ -96,8 +96,7 @@
         SkCanvas canvas( fOutputBitmap );
         SkPaint paint;
 
-        paint.setFlags( SkPaint::kHighQualityFilterBitmap_Flag | SkPaint::kFilterBitmap_Flag );
-
+        paint.setFilterLevel(SkPaint::kHigh_FilterLevel);
         canvas.drawBitmapMatrix( fInputBitmap, fMatrix, &paint );
     }
 private: