Remove SkBitmapSource

gm/imagefilterstransformed.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "sk_tool_utils.h"
-#include "SkBitmapSource.h"
 #include "SkBlurImageFilter.h"
 #include "SkColor.h"
 #include "SkDisplacementMapEffect.h"
 #include "SkDropShadowImageFilter.h"
 #include "SkGradientShader.h"
+#include "SkImage.h"
+#include "SkImageSource.h"
 #include "SkMorphologyImageFilter.h"
 #include "SkScalar.h"
+#include "SkSurface.h"
 #include "gm.h"
 
 namespace skiagm {
 
 // This GM draws image filters with a CTM containing shearing / rotation.
 // It checks that the scale portion of the CTM is correctly extracted
 // and applied to the image inputs separately from the non-scale portion.
 
 class ImageFiltersTransformedGM : public GM {
 public:
     ImageFiltersTransformedGM() {
         this->setBGColor(SK_ColorBLACK);
     }
 
 protected:
 
     SkString onShortName() override { return SkString("imagefilterstransformed"); }
 
     SkISize onISize() override { return SkISize::Make(420, 240); }
 
-    void makeGradientCircle(int width, int height) {
-        SkScalar x = SkIntToScalar(width / 2);
-        SkScalar y = SkIntToScalar(height / 2);
-        SkScalar radius = SkMinScalar(x, y) * 0.8f;
-        fGradientCircle.allocN32Pixels(width, height);
-        SkCanvas canvas(fGradientCircle);
-        canvas.clear(0x00000000);
-        SkColor colors[2];
-        colors[0] = SK_ColorWHITE;
-        colors[1] = SK_ColorBLACK;
-        SkAutoTUnref<SkShader> shader(
-            SkGradientShader::CreateRadial(SkPoint::Make(x, y), radius, colors, nullptr, 2,
-                                           SkShader::kClamp_TileMode)
-        );
-        SkPaint paint;
-        paint.setShader(shader);
-        canvas.drawCircle(x, y, radius, paint);
-    }
-
     void onOnceBeforeDraw() override {
-        fCheckerboard = sk_tool_utils::create_checkerboard_bitmap(64, 64,
-                                                                  0xFFA0A0A0, 0xFF404040, 8);
-        this->makeGradientCircle(64, 64);
+        fCheckerboard.reset(SkImage::NewFromBitmap(
+            sk_tool_utils::create_checkerboard_bitmap(64, 64, 0xFFA0A0A0, 0xFF404040, 8)));
+        fGradientCircle.reset(MakeGradientCircle(64, 64));
     }
 
     void onDraw(SkCanvas* canvas) override {
-        SkAutoTUnref<SkImageFilter> gradient(SkBitmapSource::Create(fGradientCircle));
-        SkAutoTUnref<SkImageFilter> checkerboard(SkBitmapSource::Create(fCheckerboard));
+        SkAutoTUnref<SkImageFilter> gradient(SkImageSource::Create(fGradientCircle));
+        SkAutoTUnref<SkImageFilter> checkerboard(SkImageSource::Create(fCheckerboard));
         SkImageFilter* filters[] = {
             SkBlurImageFilter::Create(12, 0),
             SkDropShadowImageFilter::Create(0, 15, 8, 0, SK_ColorGREEN,
                 SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode),
             SkDisplacementMapEffect::Create(SkDisplacementMapEffect::kR_ChannelSelectorType,
                                             SkDisplacementMapEffect::kR_ChannelSelectorType,
                                             12,
                                             gradient.get(),
                                             checkerboard.get()),
             SkDilateImageFilter::Create(2, 2, checkerboard.get()),
@@ skipping 28 matching lines @@
             canvas->restore();
             canvas->translate(0, size + margin);
         }
 
         for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
             SkSafeUnref(filters[i]);
         }
     }
 
 private:
-    SkBitmap fCheckerboard;
-    SkBitmap fGradientCircle;
+
+    static SkImage* MakeGradientCircle(int width, int height) {

[tomhudson, 2015/09/23 13:46:33]

Nit: we could move this outside the class now, although I suspect the official
style guide is silent about whether we *ought*?

[f(malita), 2015/09/23 14:11:16]

Done.

+        SkScalar x = SkIntToScalar(width / 2);
+        SkScalar y = SkIntToScalar(height / 2);
+        SkScalar radius = SkMinScalar(x, y) * 0.8f;
+
+        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(width, height));
+        SkCanvas* canvas = surface->getCanvas();
+
+        canvas->clear(0x00000000);
+        SkColor colors[2];
+        colors[0] = SK_ColorWHITE;
+        colors[1] = SK_ColorBLACK;
+        SkAutoTUnref<SkShader> shader(
+            SkGradientShader::CreateRadial(SkPoint::Make(x, y), radius, colors, nullptr, 2,
+                                           SkShader::kClamp_TileMode)
+        );
+        SkPaint paint;
+        paint.setShader(shader);
+        canvas->drawCircle(x, y, radius, paint);
+
+        return surface->newImageSnapshot();
+    }
+
+    SkAutoTUnref<SkImage> fCheckerboard;
+    SkAutoTUnref<SkImage> fGradientCircle;
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return new ImageFiltersTransformedGM; )
 
 }