1 /* 2 * Copyright 2013 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 "SkOSFile.h" 14 15 namespace skiagm { 16 17 /** 18 * Test copying an image from 8888 to 4444. 19 */ 20 class CopyTo4444GM : public GM { 21 public: 22 CopyTo4444GM() {} 23 24 protected: 25 virtual SkString onShortName() { 26 return SkString("copyTo4444"); 27 } 28 29 virtual SkISize onISize() { 30 return SkISize::Make(1024, 512); 31 } 32 33 virtual void onDraw(SkCanvas* canvas) { 34 SkBitmap bm, bm4444; 35 SkString resourcePath = GetResourcePath(); 36 SkString filename = SkOSPath::SkPathJoin(resourcePath.c_str(), "mandrill_512.png"); 37 if (!SkImageDecoder::DecodeFile(filename.c_str(), &bm, kN32_SkColorType, 38 SkImageDecoder::kDecodePixels_Mode)) { 39 SkDebugf("Could not decode the file. Did you forget to set the " 40 "resourcePath?\n"); 41 return; 42 } 43 canvas->drawBitmap(bm, 0, 0); 44 SkAssertResult(bm.copyTo(&bm4444, kARGB_4444_SkColorType)); 45 canvas->drawBitmap(bm4444, SkIntToScalar(bm.width()), 0); 46 } 47 48 private: 49 typedef GM INHERITED; 50 }; 51 52 ////////////////////////////////////////////////////////////////////////////// 53 54 static GM* MyFactory(void*) { return new CopyTo4444GM; } 55 static GMRegistry reg(MyFactory); 56 57 } 58
