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| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
| 4 * | 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
| 7 */ | 7 */ |
| 8 #include "SkBlurMask.h" | 8 #include "SkBlurMask.h" |
| 9 #include "SkBlurMaskFilter.h" | 9 #include "SkBlurMaskFilter.h" |
| 10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
| 11 #include "SkMath.h" | 11 #include "SkMath.h" |
| 12 #include "SkPaint.h" | 12 #include "SkPaint.h" |
| 13 #include "Test.h" | 13 #include "Test.h" |
| 14 | 14 |
| 15 #if SK_SUPPORT_GPU | 15 #if SK_SUPPORT_GPU |
| 16 #include "GrContextFactory.h" | 16 #include "GrContextFactory.h" |
| 17 #include "SkGpuDevice.h" | 17 #include "SkGpuDevice.h" |
| 18 #endif | 18 #endif |
| 19 | 19 |
| 20 #define WRITE_CSV 0 | 20 #define WRITE_CSV 0 |
| 21 | 21 |
| 22 /////////////////////////////////////////////////////////////////////////////// | 22 /////////////////////////////////////////////////////////////////////////////// |
| 23 | 23 |
| 24 #define ILLEGAL_MODE ((SkXfermode::Mode)-1) | 24 #define ILLEGAL_MODE ((SkXfermode::Mode)-1) |
| 25 | 25 |
| 26 static const int outset = 100; | 26 static const int outset = 100; |
| 27 static const SkColor bgColor = SK_ColorWHITE; | 27 static const SkColor bgColor = SK_ColorWHITE; |
| 28 static const int strokeWidth = 4; | 28 static const int strokeWidth = 4; |
| 29 | 29 |
| 30 static void create(SkBitmap* bm, SkIRect bound, SkBitmap::Config config) { | 30 static void create(SkBitmap* bm, const SkIRect& bound) { |
| 31 bm->setConfig(config, bound.width(), bound.height()); | 31 bm->allocN32Pixels(bound.width(), bound.height()); |
| 32 bm->allocPixels(); | |
| 33 } | 32 } |
| 34 | 33 |
| 35 static void drawBG(SkCanvas* canvas) { | 34 static void drawBG(SkCanvas* canvas) { |
| 36 canvas->drawColor(bgColor); | 35 canvas->drawColor(bgColor); |
| 37 } | 36 } |
| 38 | 37 |
| 39 | 38 |
| 40 struct BlurTest { | 39 struct BlurTest { |
| 41 void (*addPath)(SkPath*); | 40 void (*addPath)(SkPath*); |
| 42 int viewLen; | 41 int viewLen; |
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| 119 for (size_t test = 0; test < SK_ARRAY_COUNT(tests); ++test) { | 118 for (size_t test = 0; test < SK_ARRAY_COUNT(tests); ++test) { |
| 120 SkPath path; | 119 SkPath path; |
| 121 tests[test].addPath(&path); | 120 tests[test].addPath(&path); |
| 122 SkPath strokedPath; | 121 SkPath strokedPath; |
| 123 paint.getFillPath(path, &strokedPath); | 122 paint.getFillPath(path, &strokedPath); |
| 124 SkRect refBound = strokedPath.getBounds(); | 123 SkRect refBound = strokedPath.getBounds(); |
| 125 SkIRect iref; | 124 SkIRect iref; |
| 126 refBound.roundOut(&iref); | 125 refBound.roundOut(&iref); |
| 127 iref.inset(-outset, -outset); | 126 iref.inset(-outset, -outset); |
| 128 SkBitmap refBitmap; | 127 SkBitmap refBitmap; |
| 129 create(&refBitmap, iref, SkBitmap::kARGB_8888_Config); | 128 create(&refBitmap, iref); |
| 130 | 129 |
| 131 SkCanvas refCanvas(refBitmap); | 130 SkCanvas refCanvas(refBitmap); |
| 132 refCanvas.translate(SkIntToScalar(-iref.fLeft), | 131 refCanvas.translate(SkIntToScalar(-iref.fLeft), |
| 133 SkIntToScalar(-iref.fTop)); | 132 SkIntToScalar(-iref.fTop)); |
| 134 drawBG(&refCanvas); | 133 drawBG(&refCanvas); |
| 135 refCanvas.drawPath(path, paint); | 134 refCanvas.drawPath(path, paint); |
| 136 | 135 |
| 137 for (int view = 0; view < tests[test].viewLen; ++view) { | 136 for (int view = 0; view < tests[test].viewLen; ++view) { |
| 138 SkIRect itest = tests[test].views[view]; | 137 SkIRect itest = tests[test].views[view]; |
| 139 SkBitmap testBitmap; | 138 SkBitmap testBitmap; |
| 140 create(&testBitmap, itest, SkBitmap::kARGB_8888_Config); | 139 create(&testBitmap, itest); |
| 141 | 140 |
| 142 SkCanvas testCanvas(testBitmap); | 141 SkCanvas testCanvas(testBitmap); |
| 143 testCanvas.translate(SkIntToScalar(-itest.fLeft), | 142 testCanvas.translate(SkIntToScalar(-itest.fLeft), |
| 144 SkIntToScalar(-itest.fTop)); | 143 SkIntToScalar(-itest.fTop)); |
| 145 drawBG(&testCanvas); | 144 drawBG(&testCanvas); |
| 146 testCanvas.drawPath(path, paint); | 145 testCanvas.drawPath(path, paint); |
| 147 | 146 |
| 148 REPORTER_ASSERT(reporter, | 147 REPORTER_ASSERT(reporter, |
| 149 compare(refBitmap, iref, testBitmap, itest)); | 148 compare(refBitmap, iref, testBitmap, itest)); |
| 150 } | 149 } |
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| 237 SkBlurMaskFilter::kHighQuali
ty_BlurFlag); | 236 SkBlurMaskFilter::kHighQuali
ty_BlurFlag); |
| 238 blurPaint.setMaskFilter(filter)->unref(); | 237 blurPaint.setMaskFilter(filter)->unref(); |
| 239 | 238 |
| 240 canvas->drawColor(SK_ColorBLACK); | 239 canvas->drawColor(SK_ColorBLACK); |
| 241 canvas->drawPath(path, blurPaint); | 240 canvas->drawPath(path, blurPaint); |
| 242 } | 241 } |
| 243 | 242 |
| 244 // Readback the blurred draw results from the canvas | 243 // Readback the blurred draw results from the canvas |
| 245 static void readback(SkCanvas* canvas, int* result, int resultCount) { | 244 static void readback(SkCanvas* canvas, int* result, int resultCount) { |
| 246 SkBitmap readback; | 245 SkBitmap readback; |
| 247 readback.setConfig(SkBitmap::kARGB_8888_Config, resultCount, 30); | 246 readback.allocN32Pixels(resultCount, 30); |
| 248 readback.allocPixels(); | |
| 249 | 247 |
| 250 SkIRect readBackRect = { 0, 0, resultCount, 30 }; | 248 SkIRect readBackRect = { 0, 0, resultCount, 30 }; |
| 251 | 249 |
| 252 canvas->readPixels(readBackRect, &readback); | 250 canvas->readPixels(readBackRect, &readback); |
| 253 | 251 |
| 254 readback.lockPixels(); | 252 readback.lockPixels(); |
| 255 SkPMColor* pixels = (SkPMColor*) readback.getAddr32(0, 15); | 253 SkPMColor* pixels = (SkPMColor*) readback.getAddr32(0, 15); |
| 256 | 254 |
| 257 for (int i = 0; i < resultCount; ++i) { | 255 for (int i = 0; i < resultCount; ++i) { |
| 258 result[i] = SkColorGetR(pixels[i]); | 256 result[i] = SkColorGetR(pixels[i]); |
| 259 } | 257 } |
| 260 } | 258 } |
| 261 | 259 |
| 262 // Draw a blurred version of the provided path. | 260 // Draw a blurred version of the provided path. |
| 263 // Return the right half of the middle row in 'result'. | 261 // Return the right half of the middle row in 'result'. |
| 264 static void cpu_blur_path(const SkPath& path, SkScalar gaussianSigma, | 262 static void cpu_blur_path(const SkPath& path, SkScalar gaussianSigma, |
| 265 int* result, int resultCount) { | 263 int* result, int resultCount) { |
| 266 | 264 |
| 267 SkBitmap bitmap; | 265 SkBitmap bitmap; |
| 268 bitmap.setConfig(SkBitmap::kARGB_8888_Config, resultCount, 30); | 266 bitmap.allocN32Pixels(resultCount, 30); |
| 269 bitmap.allocPixels(); | |
| 270 SkCanvas canvas(bitmap); | 267 SkCanvas canvas(bitmap); |
| 271 | 268 |
| 272 blur_path(&canvas, path, gaussianSigma); | 269 blur_path(&canvas, path, gaussianSigma); |
| 273 readback(&canvas, result, resultCount); | 270 readback(&canvas, result, resultCount); |
| 274 } | 271 } |
| 275 | 272 |
| 276 #if SK_SUPPORT_GPU | 273 #if SK_SUPPORT_GPU |
| 277 static bool gpu_blur_path(GrContextFactory* factory, const SkPath& path, | 274 static bool gpu_blur_path(GrContextFactory* factory, const SkPath& path, |
| 278 SkScalar gaussianSigma, | 275 SkScalar gaussianSigma, |
| 279 int* result, int resultCount) { | 276 int* result, int resultCount) { |
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| 381 write_as_csv("GroundTruth2D", sigma, groundTruthResult, kSize); | 378 write_as_csv("GroundTruth2D", sigma, groundTruthResult, kSize); |
| 382 write_as_csv("BruteForce1D", sigma, bruteForce1DResult, kSize); | 379 write_as_csv("BruteForce1D", sigma, bruteForce1DResult, kSize); |
| 383 #endif | 380 #endif |
| 384 } | 381 } |
| 385 } | 382 } |
| 386 | 383 |
| 387 DEF_GPUTEST(Blur, reporter, factory) { | 384 DEF_GPUTEST(Blur, reporter, factory) { |
| 388 test_blur_drawing(reporter); | 385 test_blur_drawing(reporter); |
| 389 test_sigma_range(reporter, factory); | 386 test_sigma_range(reporter, factory); |
| 390 } | 387 } |
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