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      1 /*
      2  * Copyright 2011 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 #include "gm.h"
      8 #include "sk_tool_utils.h"
      9 #include "SkCanvas.h"
     10 #include "SkData.h"
     11 #include "SkImageEncoder.h"
     12 #include "Resources.h"
     13 
     14 namespace skiagm {
     15 
     16 class EncodeGM : public GM {
     17 public:
     18     EncodeGM() {}
     19 
     20 protected:
     21     SkString onShortName() override {
     22         return SkString("encode");
     23     }
     24 
     25     SkISize onISize() override {
     26         return SkISize::Make(1024, 600);
     27     }
     28 
     29     void onDraw(SkCanvas* canvas) override {
     30         SkBitmap orig;
     31         GetResourceAsBitmap("mandrill_512_q075.jpg", &orig);
     32         sk_sp<SkData> pngData(sk_tool_utils::EncodeImageToData(orig, SkEncodedImageFormat::kPNG, 100));
     33         sk_sp<SkData> jpegData(sk_tool_utils::EncodeImageToData(orig, SkEncodedImageFormat::kJPEG, 100));
     34 
     35         sk_sp<SkImage> pngImage = SkImage::MakeFromEncoded(pngData);
     36         sk_sp<SkImage> jpegImage = SkImage::MakeFromEncoded(jpegData);
     37         canvas->drawImage(pngImage.get(), 0.0f, 0.0f);
     38         canvas->drawImage(jpegImage.get(), 512.0f, 0.0f);
     39 
     40         const char text[] = "Images should look identical.";
     41         canvas->drawText(text, sizeof(text) - 1, 450.0f, 550.0f, SkPaint());
     42     }
     43 
     44 private:
     45     typedef GM INHERITED;
     46 };
     47 
     48 DEF_GM( return new EncodeGM; )
     49 }
     50