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 8 #include "gm/gm.h" 9 #include "include/core/SkBitmap.h" 10 #include "include/core/SkCanvas.h" 11 #include "include/core/SkData.h" 12 #include "include/core/SkEncodedImageFormat.h" 13 #include "include/core/SkFont.h" 14 #include "include/core/SkImage.h" 15 #include "include/core/SkImageEncoder.h" 16 #include "include/core/SkPaint.h" 17 #include "include/core/SkRefCnt.h" 18 #include "include/core/SkSize.h" 19 #include "include/core/SkString.h" 20 #include "tools/Resources.h" 21 22 namespace skiagm { 23 24 class EncodeGM : public GM { 25 public: EncodeGM()26 EncodeGM() {} 27 28 protected: onShortName()29 SkString onShortName() override { 30 return SkString("encode"); 31 } 32 onISize()33 SkISize onISize() override { 34 return SkISize::Make(1024, 600); 35 } 36 onDraw(SkCanvas * canvas)37 void onDraw(SkCanvas* canvas) override { 38 SkBitmap orig; 39 GetResourceAsBitmap("images/mandrill_512_q075.jpg", &orig); 40 auto pngData = SkEncodeBitmap(orig, SkEncodedImageFormat::kPNG, 100); 41 auto jpgData = SkEncodeBitmap(orig, SkEncodedImageFormat::kJPEG, 100); 42 43 sk_sp<SkImage> pngImage = SkImage::MakeFromEncoded(pngData); 44 sk_sp<SkImage> jpgImage = SkImage::MakeFromEncoded(jpgData); 45 canvas->drawImage(pngImage.get(), 0.0f, 0.0f); 46 canvas->drawImage(jpgImage.get(), 512.0f, 0.0f); 47 48 SkFont font; 49 font.setEdging(SkFont::Edging::kAlias); 50 canvas->drawString("Images should look identical.", 450.0f, 550.0f, font, SkPaint()); 51 } 52 53 private: 54 typedef GM INHERITED; 55 }; 56 57 DEF_GM( return new EncodeGM; ) 58 } 59 60 /////////// 61 62 #if 0 63 DEF_SIMPLE_GM(jpeg_orientation, canvas, 1000, 1000) { 64 static sk_sp<SkImage> imgs[8]; 65 if (!imgs[0]) { 66 for (int i = 0; i < 8; ++i) { 67 SkString path; 68 path.printf("/skia/orientation/Landscape_%d.jpg", i + 1); 69 auto stream = SkStream::MakeFromFile(path.c_str()); 70 auto data = SkData::MakeFromStream(stream.get(), stream->getLength()); 71 imgs[i] = SkImage::MakeFromEncoded(data, nullptr); 72 } 73 } 74 canvas->scale(0.25, 0.25); 75 for (int i = 0; i < 8; ++i) { 76 SkImage* img = imgs[i].get(); 77 canvas->drawImage(img, 0, 0, nullptr); 78 canvas->translate(0, img->height()); 79 if (i == 3) { 80 canvas->translate(img->width(), -4*img->height()); 81 } 82 } 83 } 84 #endif 85
