1 /* 2 * Copyright 2012 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.h" 9 10 #include "Resources.h" 11 #include "SkCanvas.h" 12 #include "SkImageDecoder.h" 13 #include "SkStream.h" 14 15 namespace skiagm { 16 17 /** Draw a CMYK encoded jpeg - libjpeg doesn't support CMYK->RGB 18 conversion so this tests Skia's internal processing 19 */ 20 class CMYKJpegGM : public GM { 21 public: 22 CMYKJpegGM() {} 23 24 protected: 25 void onOnceBeforeDraw() override { 26 // parameters to the "decode" call 27 bool dither = false; 28 29 SkString jpgFilename = GetResourcePath("CMYK.jpg"); 30 SkFILEStream stream(jpgFilename.c_str()); 31 if (!stream.isValid()) { 32 SkDebugf("Could not find CMYK.jpg, please set --resourcePath correctly.\n"); 33 return; 34 } 35 36 SkImageDecoder* codec = SkImageDecoder::Factory(&stream); 37 if (codec) { 38 stream.rewind(); 39 codec->setDitherImage(dither); 40 codec->decode(&stream, &fBitmap, kN32_SkColorType, SkImageDecoder::kDecodePixels_Mode); 41 delete codec; 42 } 43 } 44 45 virtual SkString onShortName() override { 46 return SkString("cmykjpeg"); 47 } 48 49 virtual SkISize onISize() override { 50 return SkISize::Make(640, 480); 51 } 52 53 virtual void onDraw(SkCanvas* canvas) override { 54 55 canvas->translate(20*SK_Scalar1, 20*SK_Scalar1); 56 canvas->drawBitmap(fBitmap, 0, 0); 57 } 58 59 private: 60 SkBitmap fBitmap; 61 62 typedef GM INHERITED; 63 }; 64 65 ////////////////////////////////////////////////////////////////////////////// 66 67 static GM* MyFactory(void*) { return new CMYKJpegGM; } 68 static GMRegistry reg(MyFactory); 69 70 } 71
