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