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| 1 /* | 1 /* |
| 2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #include "gm.h" | 8 #include "gm.h" |
| 9 #include "SkCanvas.h" | 9 #include "SkCanvas.h" |
| 10 #include "SkColorFilterImageFilter.h" | 10 #include "SkColorFilterImageFilter.h" |
| 11 #include "SkGradientShader.h" | 11 #include "SkGradientShader.h" |
| 12 #include "SkTableColorFilter.h" | 12 #include "SkTableColorFilter.h" |
| 13 | 13 |
| 14 static SkShader* make_shader0(int w, int h) { | |
| 15 SkPoint pts[] = { {0, 0}, {SkIntToScalar(w), SkIntToScalar(h)} }; | |
| 16 SkColor colors[] = { | |
| 17 SK_ColorBLACK, SK_ColorGREEN, SK_ColorCYAN, | |
| 18 SK_ColorRED, 0, SK_ColorBLUE, SK_ColorWHITE | |
| 19 }; | |
| 20 return SkGradientShader::CreateLinear(pts, colors, NULL, SK_ARRAY_COUNT(colo
rs), | |
| 21 SkShader::kClamp_TileMode); | |
| 22 } | |
| 23 static void make_bm0(SkBitmap* bm) { | 14 static void make_bm0(SkBitmap* bm) { |
| 24 int W = 120; | 15 int W = 120; |
| 25 int H = 120; | 16 int H = 120; |
| 26 bm->allocN32Pixels(W, H); | 17 bm->allocN32Pixels(W, H); |
| 27 bm->eraseColor(SK_ColorTRANSPARENT); | 18 bm->eraseColor(SK_ColorTRANSPARENT); |
| 28 | 19 |
| 29 SkCanvas canvas(*bm); | 20 SkCanvas canvas(*bm); |
| 30 SkPaint paint; | 21 SkPaint paint; |
| 31 paint.setShader(make_shader0(W, H))->unref(); | 22 SkPoint pts[] = { {0, 0}, {SkIntToScalar(W), SkIntToScalar(H)} }; |
| 23 SkColor colors[] = { |
| 24 SK_ColorBLACK, SK_ColorGREEN, SK_ColorCYAN, |
| 25 SK_ColorRED, 0, SK_ColorBLUE, SK_ColorWHITE |
| 26 }; |
| 27 SkShader* s = SkGradientShader::CreateLinear(pts, colors, NULL, SK_ARRAY_COU
NT(colors), |
| 28 SkShader::kClamp_TileMode); |
| 29 paint.setShader(s)->unref(); |
| 32 canvas.drawPaint(paint); | 30 canvas.drawPaint(paint); |
| 33 } | 31 } |
| 34 static SkShader* make_shader1(int w, int h) { | |
| 35 SkScalar cx = SkIntToScalar(w)/2; | |
| 36 SkScalar cy = SkIntToScalar(h)/2; | |
| 37 SkColor colors[] = { | |
| 38 SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, | |
| 39 }; | |
| 40 return SkGradientShader::CreateRadial(SkPoint::Make(cx, cy), cx, colors, NUL
L, | |
| 41 SK_ARRAY_COUNT(colors), SkShader::kCla
mp_TileMode); | |
| 42 } | |
| 43 static void make_bm1(SkBitmap* bm) { | 32 static void make_bm1(SkBitmap* bm) { |
| 44 int W = 120; | 33 int W = 120; |
| 45 int H = 120; | 34 int H = 120; |
| 46 SkScalar cx = SkIntToScalar(W)/2; | |
| 47 SkScalar cy = SkIntToScalar(H)/2; | |
| 48 bm->allocN32Pixels(W, H); | 35 bm->allocN32Pixels(W, H); |
| 49 bm->eraseColor(SK_ColorTRANSPARENT); | 36 bm->eraseColor(SK_ColorTRANSPARENT); |
| 50 | 37 |
| 51 SkCanvas canvas(*bm); | 38 SkCanvas canvas(*bm); |
| 52 SkPaint paint; | 39 SkPaint paint; |
| 53 paint.setShader(make_shader1(W, H))->unref(); | 40 SkScalar cx = SkIntToScalar(W)/2; |
| 41 SkScalar cy = SkIntToScalar(H)/2; |
| 42 SkColor colors[] = { |
| 43 SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, |
| 44 }; |
| 45 SkShader* s = SkGradientShader::CreateRadial(SkPoint::Make(SkIntToScalar(W)/
2, |
| 46 SkIntToScalar(H)/
2), |
| 47 SkIntToScalar(W)/2, colors, NUL
L, SK_ARRAY_COUNT(colors), |
| 48 SkShader::kClamp_TileMode); |
| 49 paint.setShader(s)->unref(); |
| 54 paint.setAntiAlias(true); | 50 paint.setAntiAlias(true); |
| 55 canvas.drawCircle(cx, cy, cx, paint); | 51 canvas.drawCircle(cx, cy, cx, paint); |
| 56 } | 52 } |
| 57 | 53 |
| 58 static void make_table0(uint8_t table[]) { | 54 static void make_table0(uint8_t table[]) { |
| 59 for (int i = 0; i < 256; ++i) { | 55 for (int i = 0; i < 256; ++i) { |
| 60 int n = i >> 5; | 56 int n = i >> 5; |
| 61 table[i] = (n << 5) | (n << 2) | (n >> 1); | 57 table[i] = (n << 5) | (n << 2) | (n >> 1); |
| 62 } | 58 } |
| 63 } | 59 } |
| (...skipping 117 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 181 } | 177 } |
| 182 | 178 |
| 183 // Move down one line to the beginning of the block for next bitmap | 179 // Move down one line to the beginning of the block for next bitmap |
| 184 y += yOffset; | 180 y += yOffset; |
| 185 } | 181 } |
| 186 } | 182 } |
| 187 | 183 |
| 188 private: | 184 private: |
| 189 typedef GM INHERITED; | 185 typedef GM INHERITED; |
| 190 }; | 186 }; |
| 191 DEF_GM( return new TableColorFilterGM; ) | |
| 192 | 187 |
| 193 ////////////////////////////////////////////////////////////////////////////// | 188 ////////////////////////////////////////////////////////////////////////////// |
| 194 | 189 |
| 195 class ComposeColorFilterGM : public skiagm::GM { | 190 static skiagm::GM* MyFactory(void*) { return new TableColorFilterGM; } |
| 196 public: | 191 static skiagm::GMRegistry reg(MyFactory); |
| 197 ComposeColorFilterGM() {} | |
| 198 | |
| 199 protected: | |
| 200 virtual SkString onShortName() { | |
| 201 return SkString("composecolorfilter"); | |
| 202 } | |
| 203 | |
| 204 virtual SkISize onISize() { | |
| 205 return SkISize::Make(730, 730); | |
| 206 } | |
| 207 | |
| 208 virtual void onDraw(SkCanvas* canvas) { | |
| 209 SkBitmap bm; | |
| 210 make_bm1(&bm); | |
| 211 | |
| 212 canvas->drawColor(0xFFDDDDDD); | |
| 213 | |
| 214 SkColor colors[] = { SK_ColorCYAN, SK_ColorMAGENTA, SK_ColorYELLOW }; | |
| 215 SkXfermode::Mode modes[] = { | |
| 216 SkXfermode::kOverlay_Mode, | |
| 217 SkXfermode::kDarken_Mode, | |
| 218 SkXfermode::kColorBurn_Mode, | |
| 219 SkXfermode::kExclusion_Mode, | |
| 220 }; | |
| 221 | |
| 222 const int MODES = SK_ARRAY_COUNT(modes) * SK_ARRAY_COUNT(colors); | |
| 223 SkAutoTUnref<SkColorFilter> filters[MODES]; | |
| 224 int index = 0; | |
| 225 for (size_t i = 0; i < SK_ARRAY_COUNT(modes); ++i) { | |
| 226 for (size_t j = 0; j < SK_ARRAY_COUNT(colors); ++j) { | |
| 227 filters[index++].reset(SkColorFilter::CreateModeFilter(colors[j]
, modes[i])); | |
| 228 } | |
| 229 } | |
| 230 | |
| 231 SkPaint paint; | |
| 232 paint.setShader(make_shader1(50, 50))->unref(); | |
| 233 SkRect r = SkRect::MakeWH(50, 50); | |
| 234 const SkScalar spacer = 10; | |
| 235 | |
| 236 canvas->translate(spacer, spacer); | |
| 237 | |
| 238 for (size_t y = 0; y < MODES; ++y) { | |
| 239 canvas->save(); | |
| 240 for (size_t x = 0; x < MODES; ++x) { | |
| 241 SkAutoTUnref<SkColorFilter> compose(SkColorFilter::CreateCompose
Filter(filters[y], | |
| 242
filters[x])); | |
| 243 paint.setColorFilter(compose); | |
| 244 canvas->drawRect(r, paint); | |
| 245 canvas->translate(r.width() + spacer, 0); | |
| 246 } | |
| 247 canvas->restore(); | |
| 248 canvas->translate(0, r.height() + spacer); | |
| 249 } | |
| 250 } | |
| 251 | |
| 252 private: | |
| 253 typedef GM INHERITED; | |
| 254 }; | |
| 255 DEF_GM( return new ComposeColorFilterGM; ) | |
| 256 | |
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