reed@google.com | 8926b16 | 2012-03-23 15:36:36 +0000 | [diff] [blame] | 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 | |
| 8 | #include "gm.h" |
| 9 | #include "SkCanvas.h" |
| 10 | #include "SkColorFilter.h" |
| 11 | #include "SkColorPriv.h" |
| 12 | #include "SkShader.h" |
| 13 | |
| 14 | #include "SkBlurImageFilter.h" |
| 15 | #include "SkTestImageFilters.h" |
| 16 | |
| 17 | class FailImageFilter : public SkImageFilter { |
| 18 | public: |
| 19 | FailImageFilter() {} |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame^] | 20 | |
| 21 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(FailImageFilter) |
reed@google.com | 8926b16 | 2012-03-23 15:36:36 +0000 | [diff] [blame] | 22 | protected: |
| 23 | virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, |
| 24 | SkBitmap* result, SkIPoint* offset) { |
| 25 | return false; |
| 26 | } |
| 27 | |
| 28 | FailImageFilter(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {} |
| 29 | |
| 30 | private: |
reed@google.com | 8926b16 | 2012-03-23 15:36:36 +0000 | [diff] [blame] | 31 | typedef SkImageFilter INHERITED; |
| 32 | }; |
| 33 | |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame^] | 34 | // register the filter with the flattenable registry |
| 35 | static SkFlattenable::Registrar gFailImageFilterReg("FailImageFilter", |
| 36 | FailImageFilter::CreateProc); |
| 37 | |
reed@google.com | 8926b16 | 2012-03-23 15:36:36 +0000 | [diff] [blame] | 38 | class IdentityImageFilter : public SkImageFilter { |
| 39 | public: |
| 40 | IdentityImageFilter() {} |
reed@google.com | 8926b16 | 2012-03-23 15:36:36 +0000 | [diff] [blame] | 41 | |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame^] | 42 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(IdentityImageFilter) |
reed@google.com | 8926b16 | 2012-03-23 15:36:36 +0000 | [diff] [blame] | 43 | protected: |
| 44 | virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, |
| 45 | SkBitmap* result, SkIPoint* offset) { |
| 46 | *result = src; |
| 47 | return true; |
| 48 | } |
| 49 | |
| 50 | IdentityImageFilter(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {} |
| 51 | |
| 52 | private: |
reed@google.com | 8926b16 | 2012-03-23 15:36:36 +0000 | [diff] [blame] | 53 | typedef SkImageFilter INHERITED; |
| 54 | }; |
| 55 | |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame^] | 56 | // register the filter with the flattenable registry |
| 57 | static SkFlattenable::Registrar gIdentityImageFilterReg("IdentityImageFilter", |
| 58 | IdentityImageFilter::CreateProc); |
| 59 | |
| 60 | |
reed@google.com | 8926b16 | 2012-03-23 15:36:36 +0000 | [diff] [blame] | 61 | /////////////////////////////////////////////////////////////////////////////// |
| 62 | |
| 63 | static void draw_paint(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { |
| 64 | SkPaint paint; |
| 65 | paint.setImageFilter(imf); |
| 66 | paint.setColor(SK_ColorGREEN); |
| 67 | canvas->save(); |
| 68 | canvas->clipRect(r); |
| 69 | canvas->drawPaint(paint); |
| 70 | canvas->restore(); |
| 71 | } |
| 72 | |
| 73 | static void draw_line(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { |
| 74 | SkPaint paint; |
| 75 | paint.setColor(SK_ColorBLUE); |
| 76 | paint.setImageFilter(imf); |
| 77 | paint.setStrokeWidth(r.width()/10); |
| 78 | canvas->drawLine(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); |
| 79 | } |
| 80 | |
| 81 | static void draw_rect(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { |
| 82 | SkPaint paint; |
| 83 | paint.setColor(SK_ColorYELLOW); |
| 84 | paint.setImageFilter(imf); |
| 85 | SkRect rr(r); |
| 86 | rr.inset(r.width()/10, r.height()/10); |
| 87 | canvas->drawRect(rr, paint); |
| 88 | } |
| 89 | |
| 90 | static void draw_path(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { |
| 91 | SkPaint paint; |
| 92 | paint.setColor(SK_ColorMAGENTA); |
| 93 | paint.setImageFilter(imf); |
| 94 | paint.setAntiAlias(true); |
| 95 | canvas->drawCircle(r.centerX(), r.centerY(), r.width()*2/5, paint); |
| 96 | } |
| 97 | |
| 98 | static void draw_text(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { |
| 99 | SkPaint paint; |
| 100 | paint.setImageFilter(imf); |
| 101 | paint.setColor(SK_ColorCYAN); |
| 102 | paint.setAntiAlias(true); |
| 103 | paint.setTextSize(r.height()/2); |
| 104 | paint.setTextAlign(SkPaint::kCenter_Align); |
| 105 | canvas->drawText("Text", 4, r.centerX(), r.centerY(), paint); |
| 106 | } |
| 107 | |
| 108 | static void draw_bitmap(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { |
| 109 | SkPaint paint; |
| 110 | paint.setImageFilter(imf); |
| 111 | |
| 112 | SkIRect bounds; |
| 113 | r.roundOut(&bounds); |
| 114 | |
| 115 | SkBitmap bm; |
| 116 | bm.setConfig(SkBitmap::kARGB_8888_Config, bounds.width(), bounds.height()); |
| 117 | bm.allocPixels(); |
| 118 | bm.eraseColor(0); |
| 119 | SkCanvas c(bm); |
| 120 | draw_path(&c, r, NULL); |
| 121 | |
| 122 | canvas->drawBitmap(bm, 0, 0, &paint); |
| 123 | } |
| 124 | |
| 125 | static void draw_sprite(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) { |
| 126 | SkPaint paint; |
| 127 | paint.setImageFilter(imf); |
| 128 | |
| 129 | SkIRect bounds; |
| 130 | r.roundOut(&bounds); |
| 131 | |
| 132 | SkBitmap bm; |
| 133 | bm.setConfig(SkBitmap::kARGB_8888_Config, bounds.width(), bounds.height()); |
| 134 | bm.allocPixels(); |
| 135 | bm.eraseColor(0); |
| 136 | SkCanvas c(bm); |
| 137 | draw_path(&c, r, NULL); |
| 138 | |
| 139 | SkPoint loc = { r.fLeft, r.fTop }; |
| 140 | canvas->getTotalMatrix().mapPoints(&loc, 1); |
| 141 | canvas->drawSprite(bm, |
| 142 | SkScalarRoundToInt(loc.fX), SkScalarRoundToInt(loc.fY), |
| 143 | &paint); |
| 144 | } |
| 145 | |
| 146 | /////////////////////////////////////////////////////////////////////////////// |
| 147 | |
| 148 | class ImageFiltersBaseGM : public skiagm::GM { |
| 149 | public: |
| 150 | ImageFiltersBaseGM () {} |
| 151 | |
| 152 | protected: |
| 153 | |
| 154 | virtual SkString onShortName() { |
| 155 | return SkString("imagefiltersbase"); |
| 156 | } |
| 157 | |
| 158 | virtual SkISize onISize() { return SkISize::Make(700, 460); } |
| 159 | |
| 160 | void draw_frame(SkCanvas* canvas, const SkRect& r) { |
| 161 | SkPaint paint; |
| 162 | paint.setStyle(SkPaint::kStroke_Style); |
| 163 | paint.setColor(SK_ColorRED); |
| 164 | canvas->drawRect(r, paint); |
| 165 | } |
| 166 | |
| 167 | virtual void onDraw(SkCanvas* canvas) { |
| 168 | void (*drawProc[])(SkCanvas*, const SkRect&, SkImageFilter*) = { |
| 169 | draw_paint, |
| 170 | draw_line, draw_rect, draw_path, draw_text, |
| 171 | draw_bitmap, |
| 172 | draw_sprite |
| 173 | }; |
| 174 | |
| 175 | SkColorFilter* cf = SkColorFilter::CreateModeFilter(SK_ColorRED, |
| 176 | SkXfermode::kSrcIn_Mode); |
| 177 | SkImageFilter* filters[] = { |
| 178 | #if 1 |
| 179 | NULL, |
| 180 | new IdentityImageFilter, |
| 181 | new FailImageFilter, |
| 182 | new SkColorFilterImageFilter(cf), |
| 183 | #endif |
| 184 | new SkBlurImageFilter(12.0f, 0.0f), |
| 185 | }; |
| 186 | cf->unref(); |
| 187 | |
| 188 | SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64)); |
| 189 | SkScalar MARGIN = SkIntToScalar(16); |
| 190 | SkScalar DX = r.width() + MARGIN; |
| 191 | SkScalar DY = r.height() + MARGIN; |
| 192 | |
| 193 | canvas->translate(MARGIN, MARGIN); |
| 194 | for (size_t i = 0; i < SK_ARRAY_COUNT(drawProc); ++i) { |
| 195 | canvas->save(); |
| 196 | for (size_t j = 0; j < SK_ARRAY_COUNT(filters); ++j) { |
| 197 | drawProc[i](canvas, r, filters[j]); |
| 198 | |
| 199 | draw_frame(canvas, r); |
| 200 | canvas->translate(0, DY); |
| 201 | } |
| 202 | canvas->restore(); |
| 203 | canvas->translate(DX, 0); |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | private: |
| 208 | typedef GM INHERITED; |
| 209 | }; |
| 210 | |
| 211 | /////////////////////////////////////////////////////////////////////////////// |
| 212 | |
| 213 | static skiagm::GM* MyFactory(void*) { return new ImageFiltersBaseGM; } |
| 214 | static skiagm::GMRegistry reg(MyFactory); |
| 215 | |
| 216 | |