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.allocN32Pixels(bounds.width(), bounds.height()); 58 bm.eraseColor(SK_ColorTRANSPARENT); 59 SkCanvas c(bm); 60 draw_path(&c, r, NULL); 61 62 paint.setImageFilter(imf); 63 canvas->save(); 64 canvas->clipRect(r); 65 canvas->drawBitmap(bm, 0, 0, &paint); 66 canvas->restore(); 67 } 68 69 static void draw_sprite(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { 70 SkPaint paint; 71 72 SkIRect bounds; 73 r.roundOut(&bounds); 74 75 SkBitmap bm; 76 bm.allocN32Pixels(bounds.width(), bounds.height()); 77 bm.eraseColor(SK_ColorRED); 78 SkCanvas c(bm); 79 80 SkIRect cropRect = SkIRect::MakeXYWH(10, 10, 44, 44); 81 paint.setColor(SK_ColorGREEN); 82 c.drawRect(SkRect::Make(cropRect), paint); 83 84 paint.setImageFilter(imf); 85 SkPoint loc = { r.fLeft, r.fTop }; 86 canvas->getTotalMatrix().mapPoints(&loc, 1); 87 canvas->drawSprite(bm, 88 SkScalarRoundToInt(loc.fX), SkScalarRoundToInt(loc.fY), 89 &paint); 90 } 91 92 /////////////////////////////////////////////////////////////////////////////// 93 94 class DropShadowImageFilterGM : public skiagm::GM { 95 public: 96 DropShadowImageFilterGM () {} 97 98 protected: 99 100 virtual SkString onShortName() { 101 return SkString("dropshadowimagefilter"); 102 } 103 104 virtual SkISize onISize() { return SkISize::Make(400, 700); } 105 106 void draw_frame(SkCanvas* canvas, const SkRect& r) { 107 SkPaint paint; 108 paint.setStyle(SkPaint::kStroke_Style); 109 paint.setColor(SK_ColorRED); 110 canvas->drawRect(r, paint); 111 } 112 113 virtual uint32_t onGetFlags() const { 114 // Because of the use of drawSprite, this test is excluded 115 // from scaled replay tests because drawSprite ignores the 116 // reciprocal scale that is applied at record time, which is 117 // the intended behavior of drawSprite. 118 return kSkipScaledReplay_Flag | kSkipTiled_Flag; 119 } 120 121 virtual void onDraw(SkCanvas* canvas) { 122 void (*drawProc[])(SkCanvas*, const SkRect&, SkImageFilter*) = { 123 draw_sprite, draw_bitmap, draw_path, draw_paint, draw_text 124 }; 125 126 SkAutoTUnref<SkColorFilter> cf( 127 SkColorFilter::CreateModeFilter(SK_ColorMAGENTA, SkXfermode::kSrcIn_Mode)); 128 SkAutoTUnref<SkImageFilter> cfif(SkColorFilterImageFilter::Create(cf.get())); 129 SkImageFilter::CropRect cropRect(SkRect::Make(SkIRect::MakeXYWH(10, 10, 44, 44)), 130 SkImageFilter::CropRect::kHasAll_CropEdge); 131 SkImageFilter::CropRect bogusRect(SkRect::Make(SkIRect::MakeXYWH(-100, -100, 10, 10)), 132 SkImageFilter::CropRect::kHasAll_CropEdge); 133 134 SkImageFilter* filters[] = { 135 NULL, 136 SkDropShadowImageFilter::Create(7.0f, 0.0f, 0.0f, 3.0f, SK_ColorBLUE), 137 SkDropShadowImageFilter::Create(0.0f, 7.0f, 3.0f, 0.0f, SK_ColorBLUE), 138 SkDropShadowImageFilter::Create(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE), 139 SkDropShadowImageFilter::Create(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, cfif), 140 SkDropShadowImageFilter::Create(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, NULL, &cropRect), 141 SkDropShadowImageFilter::Create(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, NULL, &bogusRect), 142 }; 143 144 SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64)); 145 SkScalar MARGIN = SkIntToScalar(16); 146 SkScalar DX = r.width() + MARGIN; 147 SkScalar DY = r.height() + MARGIN; 148 149 canvas->translate(MARGIN, MARGIN); 150 for (size_t j = 0; j < SK_ARRAY_COUNT(drawProc); ++j) { 151 canvas->save(); 152 for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { 153 drawProc[j](canvas, r, filters[i]); 154 canvas->translate(0, DY); 155 } 156 canvas->restore(); 157 canvas->translate(DX, 0); 158 } 159 160 for(size_t j = 0; j < SK_ARRAY_COUNT(filters); ++j) { 161 SkSafeUnref(filters[j]); 162 } 163 } 164 165 private: 166 typedef GM INHERITED; 167 }; 168 169 /////////////////////////////////////////////////////////////////////////////// 170 171 static skiagm::GM* MyFactory(void*) { return new DropShadowImageFilterGM; } 172 static skiagm::GMRegistry reg(MyFactory); 173
