1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #include "gm.h" 9 #include "SkColorPriv.h" 10 #include "SkShader.h" 11 #include "SkCanvas.h" 12 #include "SkUtils.h" 13 14 namespace skiagm { 15 16 static SkBitmap make_bitmap() { 17 const SkPMColor c[] = { SkPackARGB32(0x80, 0x80, 0, 0) }; 18 SkColorTable* ctable = new SkColorTable(c, SK_ARRAY_COUNT(c)); 19 20 SkBitmap bm; 21 bm.allocPixels(SkImageInfo::Make(1, 1, kIndex_8_SkColorType, 22 kPremul_SkAlphaType), 23 NULL, ctable); 24 ctable->unref(); 25 26 bm.lockPixels(); 27 *bm.getAddr8(0, 0) = 0; 28 bm.unlockPixels(); 29 return bm; 30 } 31 32 class TinyBitmapGM : public GM { 33 public: 34 TinyBitmapGM() { 35 this->setBGColor(0xFFDDDDDD); 36 } 37 38 protected: 39 SkString onShortName() { 40 return SkString("tinybitmap"); 41 } 42 43 virtual SkISize onISize() { return SkISize::Make(100, 100); } 44 45 virtual void onDraw(SkCanvas* canvas) { 46 SkBitmap bm = make_bitmap(); 47 SkShader* s = 48 SkShader::CreateBitmapShader(bm, SkShader::kRepeat_TileMode, 49 SkShader::kMirror_TileMode); 50 SkPaint paint; 51 paint.setAlpha(0x80); 52 paint.setShader(s)->unref(); 53 canvas->drawPaint(paint); 54 } 55 56 private: 57 typedef GM INHERITED; 58 }; 59 60 ////////////////////////////////////////////////////////////////////////////// 61 62 static GM* MyFactory(void*) { return new TinyBitmapGM; } 63 static GMRegistry reg(MyFactory); 64 65 } 66
