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 "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 nullptr, 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(sk_tool_utils::color_to_565(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 SkPaint paint; 48 paint.setAlpha(0x80); 49 paint.setShader(SkShader::MakeBitmapShader(bm, SkShader::kRepeat_TileMode, 50 SkShader::kMirror_TileMode)); 51 canvas->drawPaint(paint); 52 } 53 54 private: 55 typedef GM INHERITED; 56 }; 57 58 ////////////////////////////////////////////////////////////////////////////// 59 60 static GM* MyFactory(void*) { return new TinyBitmapGM; } 61 static GMRegistry reg(MyFactory); 62 63 } 64
