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 #include "SkColorFilter.h" 10 11 #include "SkColorFilterImageFilter.h" 12 #include "SkDropShadowImageFilter.h" 13 14 /////////////////////////////////////////////////////////////////////////////// 15 16 static void draw_paint(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { 17 SkPaint paint; 18 paint.setImageFilter(imf); 19 paint.setColor(SK_ColorBLACK); 20 canvas->save(); 21 canvas->clipRect(r); 22 canvas->drawPaint(paint); 23 canvas->restore(); 24 } 25 26 static void draw_path(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { 27 SkPaint paint; 28 paint.setColor(SK_ColorGREEN); 29 paint.setImageFilter(imf); 30 paint.setAntiAlias(true); 31 canvas->save(); 32 canvas->clipRect(r); 33 canvas->drawCircle(r.centerX(), r.centerY(), r.width()/3, paint); 34 canvas->restore(); 35 } 36 37 static void draw_text(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { 38 SkPaint paint; 39 paint.setImageFilter(imf); 40 paint.setColor(SK_ColorGREEN); 41 paint.setAntiAlias(true); 42 paint.setTextSize(r.height()/2); 43 paint.setTextAlign(SkPaint::kCenter_Align); 44 canvas->save(); 45 canvas->clipRect(r); 46 canvas->drawText("Text", 4, r.centerX(), r.centerY(), paint); 47 canvas->restore(); 48 } 49 50 static void draw_bitmap(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { 51 SkPaint paint; 52 53 SkIRect bounds; 54 r.roundOut(&bounds); 55 56 SkBitmap bm; 57 bm.setConfig(SkBitmap::kARGB_8888_Config, bounds.width(), bounds.height()); 58 bm.allocPixels(); 59 bm.eraseColor(SK_ColorTRANSPARENT); 60 SkCanvas c(bm); 61 draw_path(&c, r, NULL); 62 63 paint.setImageFilter(imf); 64 canvas->save(); 65 canvas->clipRect(r); 66 canvas->drawBitmap(bm, 0, 0, &paint); 67 canvas->restore(); 68 } 69 70 static void draw_sprite(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { 71 SkPaint paint; 72 73 SkIRect bounds; 74 r.roundOut(&bounds); 75 76 SkBitmap bm; 77 bm.setConfig(SkBitmap::kARGB_8888_Config, bounds.width(), bounds.height()); 78 bm.allocPixels(); 79 bm.eraseColor(SK_ColorRED); 80 SkCanvas c(bm); 81 82 SkIRect cropRect = SkIRect::MakeXYWH(10, 10, 44, 44); 83 paint.setColor(SK_ColorGREEN); 84 c.drawRect(SkRect::Make(cropRect), paint); 85 86 paint.setImageFilter(imf); 87 SkPoint loc = { r.fLeft, r.fTop }; 88 canvas->getTotalMatrix().mapPoints(&loc, 1); 89 canvas->drawSprite(bm, 90 SkScalarRoundToInt(loc.fX), SkScalarRoundToInt(loc.fY), 91 &paint); 92 } 93 94 /////////////////////////////////////////////////////////////////////////////// 95 96 class DropShadowImageFilterGM : public skiagm::GM { 97 public: 98 DropShadowImageFilterGM () {} 99 100 protected: 101 102 virtual SkString onShortName() { 103 return SkString("dropshadowimagefilter"); 104 } 105 106 virtual SkISize onISize() { return SkISize::Make(400, 700); } 107 108 void draw_frame(SkCanvas* canvas, const SkRect& r) { 109 SkPaint paint; 110 paint.setStyle(SkPaint::kStroke_Style); 111 paint.setColor(SK_ColorRED); 112 canvas->drawRect(r, paint); 113 } 114 115 virtual uint32_t onGetFlags() const { 116 // Because of the use of drawSprite, this test is excluded 117 // from scaled replay tests because drawSprite ignores the 118 // reciprocal scale that is applied at record time, which is 119 // the intended behavior of drawSprite. 120 return kSkipScaledReplay_Flag; 121 } 122 123 virtual void onDraw(SkCanvas* canvas) { 124 void (*drawProc[])(SkCanvas*, const SkRect&, SkImageFilter*) = { 125 draw_sprite, draw_bitmap, draw_path, draw_paint, draw_text 126 }; 127 128 SkAutoTUnref<SkColorFilter> cf( 129 SkColorFilter::CreateModeFilter(SK_ColorMAGENTA, SkXfermode::kSrcIn_Mode)); 130 SkAutoTUnref<SkImageFilter> cfif(SkColorFilterImageFilter::Create(cf.get())); 131 SkImageFilter::CropRect cropRect(SkRect::Make(SkIRect::MakeXYWH(10, 10, 44, 44)), 132 SkImageFilter::CropRect::kHasAll_CropEdge); 133 SkImageFilter::CropRect bogusRect(SkRect::Make(SkIRect::MakeXYWH(-100, -100, 10, 10)), 134 SkImageFilter::CropRect::kHasAll_CropEdge); 135 136 SkImageFilter* filters[] = { 137 NULL, 138 new SkDropShadowImageFilter(7.0f, 0.0f, 0.0f, 3.0f, SK_ColorBLUE), 139 new SkDropShadowImageFilter(0.0f, 7.0f, 3.0f, 0.0f, SK_ColorBLUE), 140 new SkDropShadowImageFilter(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE), 141 new SkDropShadowImageFilter(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, cfif), 142 new SkDropShadowImageFilter(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, NULL, &cropRect), 143 new SkDropShadowImageFilter(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, NULL, &bogusRect), 144 }; 145 146 SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64)); 147 SkScalar MARGIN = SkIntToScalar(16); 148 SkScalar DX = r.width() + MARGIN; 149 SkScalar DY = r.height() + MARGIN; 150 151 canvas->translate(MARGIN, MARGIN); 152 for (size_t j = 0; j < SK_ARRAY_COUNT(drawProc); ++j) { 153 canvas->save(); 154 for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { 155 drawProc[j](canvas, r, filters[i]); 156 canvas->translate(0, DY); 157 } 158 canvas->restore(); 159 canvas->translate(DX, 0); 160 } 161 162 for(size_t j = 0; j < SK_ARRAY_COUNT(filters); ++j) { 163 SkSafeUnref(filters[j]); 164 } 165 } 166 167 private: 168 typedef GM INHERITED; 169 }; 170 171 /////////////////////////////////////////////////////////////////////////////// 172 173 static skiagm::GM* MyFactory(void*) { return new DropShadowImageFilterGM; } 174 static skiagm::GMRegistry reg(MyFactory); 175
