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 9 #include "Resources.h" 10 #include "SkCanvas.h" 11 #include "SkData.h" 12 #include "SkFont.h" 13 #include "SkImage.h" 14 #include "SkImageEncoder.h" 15 16 namespace skiagm { 17 18 class EncodeGM : public GM { 19 public: EncodeGM()20 EncodeGM() {} 21 22 protected: onShortName()23 SkString onShortName() override { 24 return SkString("encode"); 25 } 26 onISize()27 SkISize onISize() override { 28 return SkISize::Make(1024, 600); 29 } 30 onDraw(SkCanvas * canvas)31 void onDraw(SkCanvas* canvas) override { 32 SkBitmap orig; 33 GetResourceAsBitmap("images/mandrill_512_q075.jpg", &orig); 34 auto pngData = SkEncodeBitmap(orig, SkEncodedImageFormat::kPNG, 100); 35 auto jpgData = SkEncodeBitmap(orig, SkEncodedImageFormat::kJPEG, 100); 36 37 sk_sp<SkImage> pngImage = SkImage::MakeFromEncoded(pngData); 38 sk_sp<SkImage> jpgImage = SkImage::MakeFromEncoded(jpgData); 39 canvas->drawImage(pngImage.get(), 0.0f, 0.0f); 40 canvas->drawImage(jpgImage.get(), 512.0f, 0.0f); 41 42 SkFont font; 43 font.setEdging(SkFont::Edging::kAlias); 44 canvas->drawString("Images should look identical.", 450.0f, 550.0f, font, SkPaint()); 45 } 46 47 private: 48 typedef GM INHERITED; 49 }; 50 51 DEF_GM( return new EncodeGM; ) 52 } 53 54 /////////// 55 56 #if 0 57 DEF_SIMPLE_GM(jpeg_orientation, canvas, 1000, 1000) { 58 static sk_sp<SkImage> imgs[8]; 59 if (!imgs[0]) { 60 for (int i = 0; i < 8; ++i) { 61 SkString path; 62 path.printf("/skia/orientation/Landscape_%d.jpg", i + 1); 63 auto stream = SkStream::MakeFromFile(path.c_str()); 64 auto data = SkData::MakeFromStream(stream.get(), stream->getLength()); 65 imgs[i] = SkImage::MakeFromEncoded(data, nullptr); 66 } 67 } 68 canvas->scale(0.25, 0.25); 69 for (int i = 0; i < 8; ++i) { 70 SkImage* img = imgs[i].get(); 71 canvas->drawImage(img, 0, 0, nullptr); 72 canvas->translate(0, img->height()); 73 if (i == 3) { 74 canvas->translate(img->width(), -4*img->height()); 75 } 76 } 77 } 78 #endif 79
