[GPU] Use view matrix + rect to implement subrect for drawBitmap when there is a mask filter and ble

gm/bleed.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 75 matching lines @@
 class BleedGM : public skiagm::GM {
 public:
     BleedGM() {}
 
 protected:
     virtual SkString onShortName() SK_OVERRIDE {
         return SkString("bleed");
     }
 
     virtual SkISize onISize() SK_OVERRIDE {
-        return SkISize::Make(kWidth, kHeight);
+        return SkISize::Make(kWidth, 780);
     }
 
     virtual void onOnceBeforeDraw() SK_OVERRIDE {
         make_ringed_bitmap(&fBitmapSmall, kSmallTextureSize, kSmallTextureSize);
 
         // To exercise the GPU's tiling path we need a texture
         // too big for the GPU to handle in one go
         make_ringed_bitmap(&fBitmapBig, 2*kMaxTextureSize, 2*kMaxTextureSize);
     }
 
     // Draw only the center of the small bitmap
     void drawCase1(SkCanvas* canvas, int transX, int transY,
                    SkCanvas::DrawBitmapRectFlags flags, SkPaint::FilterLevel filter) {
         SkRect src = SkRect::MakeXYWH(2, 2,
-                                      kSmallTextureSize-4,
-                                      kSmallTextureSize-4);
+                                      SkIntToScalar(kSmallTextureSize-4),
+                                      SkIntToScalar(kSmallTextureSize-4));
         SkRect dst = SkRect::MakeXYWH(0, 0, SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize));
 
         SkPaint paint;
         paint.setFilterLevel(filter);
 
         canvas->save();
         canvas->translate(SkIntToScalar(transX), SkIntToScalar(transY));
         canvas->drawBitmapRectToRect(fBitmapSmall, &src, dst, &paint, flags);
         canvas->restore();
     }
@@ skipping 29 matching lines @@
         canvas->save();
         canvas->translate(SkIntToScalar(transX), SkIntToScalar(transY));
         canvas->drawBitmapRectToRect(fBitmapBig, &src, dst, &paint, flags);
         canvas->restore();
     }
 
     // Draw the center of the small bitmap with a mask filter
     void drawCase4(SkCanvas* canvas, int transX, int transY,
                    SkCanvas::DrawBitmapRectFlags flags, SkPaint::FilterLevel filter) {
         SkRect src = SkRect::MakeXYWH(2, 2,
-                                      kSmallTextureSize-4,
-                                      kSmallTextureSize-4);
+                                      SkIntToScalar(kSmallTextureSize-4),
+                                      SkIntToScalar(kSmallTextureSize-4));
         SkRect dst = SkRect::MakeXYWH(0, 0, SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize));
 
         SkPaint paint;
         paint.setFilterLevel(filter);
         SkMaskFilter* mf = SkBlurMaskFilter::Create(SkBlurMaskFilter::kNormal_BlurStyle,
                                          SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(3)));
         paint.setMaskFilter(mf)->unref();
 
         canvas->save();
         canvas->translate(SkIntToScalar(transX), SkIntToScalar(transY));
         canvas->drawBitmapRectToRect(fBitmapSmall, &src, dst, &paint, flags);
         canvas->restore();
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
 
-        canvas->clear(SK_ColorGRAY);
+        canvas->clear(SK_ColorGREEN);
 
-        // Currently there are no test cases with medium filtering since medium uses mip-mapping and
-        // these draws are always upscaling.
+        for (int m = 0; m < 2; ++m) {
+            canvas->save();
+            if (m) {
+                static const SkScalar kBottom = SkIntToScalar(kRow3Y + kBlockSize + kBlockSpacing);
+                canvas->translate(0, kBottom);
+                SkMatrix rotate;
+                rotate.setRotate(15.f, 0, kBottom + kBlockSpacing);
+                canvas->concat(rotate);
+                canvas->scale(0.71f, 1.22f);
+            }
 
-        // First draw a column with no bleeding, tiling, or filtering
-        this->drawCase1(canvas, kCol0X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kNone_FilterLevel);
-        this->drawCase2(canvas, kCol0X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kNone_FilterLevel);
-        this->drawCase3(canvas, kCol0X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kNone_FilterLevel);
-        this->drawCase4(canvas, kCol0X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kNone_FilterLevel);
+            // First draw a column with no bleeding, tiling, or filtering
+            this->drawCase1(canvas, kCol0X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kNone_FilterLevel);
+            this->drawCase2(canvas, kCol0X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kNone_FilterLevel);
+            this->drawCase3(canvas, kCol0X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kNone_FilterLevel);
+            this->drawCase4(canvas, kCol0X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kNone_FilterLevel);
 
-        // Then draw a column with no bleeding or tiling but with low filtering
-        this->drawCase1(canvas, kCol1X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase2(canvas, kCol1X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase3(canvas, kCol1X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase4(canvas, kCol1X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            // Then draw a column with no bleeding or tiling but with low filtering
+            this->drawCase1(canvas, kCol1X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase2(canvas, kCol1X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase3(canvas, kCol1X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase4(canvas, kCol1X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
 
-        // Then draw a column with no bleeding or tiling but with high filtering
-        this->drawCase1(canvas, kCol2X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase2(canvas, kCol2X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase3(canvas, kCol2X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase4(canvas, kCol2X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            // Then draw a column with no bleeding or tiling but with high filtering
+            this->drawCase1(canvas, kCol2X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase2(canvas, kCol2X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase3(canvas, kCol2X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase4(canvas, kCol2X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
 
 #if SK_SUPPORT_GPU
-        GrContext* ctx = canvas->getGrContext();
-        int oldMaxTextureSize = 0;
-        if (NULL != ctx) {
-            // shrink the max texture size so all our textures can be reasonably sized
-            oldMaxTextureSize = ctx->getMaxTextureSize();
-            ctx->setMaxTextureSizeOverride(kMaxTextureSize);
-        }
+            GrContext* ctx = canvas->getGrContext();
+            int oldMaxTextureSize = 0;
+            if (NULL != ctx) {
+                // shrink the max texture size so all our textures can be reasonably sized
+                oldMaxTextureSize = ctx->getMaxTextureSize();
+                ctx->setMaxTextureSizeOverride(kMaxTextureSize);
+            }
 #endif
 
-        // Then draw a column with no bleeding but with tiling and low filtering
-        this->drawCase1(canvas, kCol3X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase2(canvas, kCol3X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase3(canvas, kCol3X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase4(canvas, kCol3X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            // Then draw a column with no bleeding but with tiling and low filtering
+            this->drawCase1(canvas, kCol3X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase2(canvas, kCol3X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase3(canvas, kCol3X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase4(canvas, kCol3X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
 
-        // Then draw a column with no bleeding but with tiling and high filtering
-        this->drawCase1(canvas, kCol4X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase2(canvas, kCol4X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase3(canvas, kCol4X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase4(canvas, kCol4X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            // Then draw a column with no bleeding but with tiling and high filtering
+            this->drawCase1(canvas, kCol4X, kRow0Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase2(canvas, kCol4X, kRow1Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase3(canvas, kCol4X, kRow2Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase4(canvas, kCol4X, kRow3Y, SkCanvas::kNone_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
 
-        // Then draw a column with bleeding, tiling, and low filtering
-        this->drawCase1(canvas, kCol5X, kRow0Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase2(canvas, kCol5X, kRow1Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase3(canvas, kCol5X, kRow2Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
-        this->drawCase4(canvas, kCol5X, kRow3Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            // Then draw a column with bleeding, tiling, and low filtering
+            this->drawCase1(canvas, kCol5X, kRow0Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase2(canvas, kCol5X, kRow1Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase3(canvas, kCol5X, kRow2Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
+            this->drawCase4(canvas, kCol5X, kRow3Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kLow_FilterLevel);
 
-        // Finally draw a column with bleeding, tiling, and high filtering
-        this->drawCase1(canvas, kCol6X, kRow0Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase2(canvas, kCol6X, kRow1Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase3(canvas, kCol6X, kRow2Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
-        this->drawCase4(canvas, kCol6X, kRow3Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            // Finally draw a column with bleeding, tiling, and high filtering
+            this->drawCase1(canvas, kCol6X, kRow0Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase2(canvas, kCol6X, kRow1Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase3(canvas, kCol6X, kRow2Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
+            this->drawCase4(canvas, kCol6X, kRow3Y, SkCanvas::kBleed_DrawBitmapRectFlag, SkPaint::kHigh_FilterLevel);
 
 #if SK_SUPPORT_GPU
-        if (NULL != ctx) {
-            ctx->setMaxTextureSizeOverride(oldMaxTextureSize);
+            if (NULL != ctx) {
+                ctx->setMaxTextureSizeOverride(oldMaxTextureSize);
+            }
+#endif
+            canvas->restore();
         }
-#endif
     }
 
 private:
     static const int kBlockSize = 70;
     static const int kBlockSpacing = 5;
 
     static const int kCol0X = kBlockSpacing;
     static const int kCol1X = 2*kBlockSpacing + kBlockSize;
     static const int kCol2X = 3*kBlockSpacing + 2*kBlockSize;
     static const int kCol3X = 4*kBlockSpacing + 3*kBlockSize;
     static const int kCol4X = 5*kBlockSpacing + 4*kBlockSize;
     static const int kCol5X = 6*kBlockSpacing + 5*kBlockSize;
     static const int kCol6X = 7*kBlockSpacing + 6*kBlockSize;
     static const int kWidth = 8*kBlockSpacing + 7*kBlockSize;
 
     static const int kRow0Y = kBlockSpacing;
     static const int kRow1Y = 2*kBlockSpacing + kBlockSize;
     static const int kRow2Y = 3*kBlockSpacing + 2*kBlockSize;
     static const int kRow3Y = 4*kBlockSpacing + 3*kBlockSize;
-    static const int kHeight = 5*kBlockSpacing + 4*kBlockSize;
 
     static const int kSmallTextureSize = 6;
     static const int kMaxTextureSize = 32;
 
     SkBitmap fBitmapSmall;
     SkBitmap fBitmapBig;
 
     typedef GM INHERITED;
 };
 
 DEF_GM( return new BleedGM(); )