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 #include "SkCanvas.h" 10 #include "SkImageDecoder.h" 11 #include "SkStream.h" 12 13 namespace skiagm { 14 15 /** Draw a CMYK encoded jpeg - libjpeg doesn't support CMYK->RGB 16 conversion so this tests Skia's internal processing 17 */ 18 class CMYKJpegGM : public GM { 19 public: 20 CMYKJpegGM() {} 21 22 protected: 23 virtual void onOnceBeforeDraw() SK_OVERRIDE { 24 25 // parameters to the "decode" call 26 bool dither = false; 27 SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config; 28 29 SkString filename(INHERITED::gResourcePath); 30 if (!filename.endsWith("/") && !filename.endsWith("\\")) { 31 filename.append("/"); 32 } 33 34 filename.append("CMYK.jpg"); 35 36 SkFILEStream stream(filename.c_str()); 37 if (!stream.isValid()) { 38 SkDebugf("Could not find CMYK.jpg, please set --resourcePath correctly.\n"); 39 return; 40 } 41 42 SkImageDecoder* codec = SkImageDecoder::Factory(&stream); 43 if (codec) { 44 stream.rewind(); 45 codec->setDitherImage(dither); 46 codec->decode(&stream, &fBitmap, prefConfig, 47 SkImageDecoder::kDecodePixels_Mode); 48 SkDELETE(codec); 49 } 50 } 51 52 virtual SkString onShortName() { 53 return SkString("cmykjpeg"); 54 } 55 56 virtual SkISize onISize() { 57 return make_isize(640, 480); 58 } 59 60 virtual void onDraw(SkCanvas* canvas) { 61 62 canvas->translate(20*SK_Scalar1, 20*SK_Scalar1); 63 canvas->drawBitmap(fBitmap, 0, 0); 64 } 65 66 private: 67 SkBitmap fBitmap; 68 69 typedef GM INHERITED; 70 }; 71 72 ////////////////////////////////////////////////////////////////////////////// 73 74 static GM* MyFactory(void*) { return new CMYKJpegGM; } 75 static GMRegistry reg(MyFactory); 76 77 } 78
