67 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			67 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C++
		
	
	
	
| /*
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|  * Copyright 2011 Google Inc.
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|  *
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|  * Use of this source code is governed by a BSD-style license that can be
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|  * found in the LICENSE file.
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|  */
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| 
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| #include "gm/gm.h"
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| #include "include/core/SkCanvas.h"
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| #include "include/core/SkFont.h"
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| #include "include/core/SkImageFilter.h"
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| #include "include/core/SkPaint.h"
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| #include "include/core/SkScalar.h"
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| #include "include/core/SkTypeface.h"
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| #include "include/core/SkTypes.h"
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| #include "include/effects/SkImageFilters.h"
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| #include "include/utils/SkRandom.h"
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| #include "tools/ToolUtils.h"
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| 
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| // TODO deprecate imageblur
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| 
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| constexpr int kWidth  = 500;
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| constexpr int kHeight = 500;
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| 
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| DEF_SIMPLE_GM(imageblur2, canvas, kWidth, kHeight) {
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|     constexpr float kBlurSigmas[] = { 0.0, 0.3f, 0.5f, 2.0f, 32.0f, 80.0f };
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|     const char* kTestStrings[] = {
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|         "The quick`~",
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|         "brown fox[]",
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|         "jumped over",
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|         "the lazy@#$",
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|         "dog.{}!%^&",
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|         "*()+=-\\'\"/",
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|     };
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|     constexpr int sigmaCount = SK_ARRAY_COUNT(kBlurSigmas);
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|     constexpr int testStringCount = SK_ARRAY_COUNT(kTestStrings);
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|     constexpr SkScalar dx = kWidth / sigmaCount;
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|     constexpr SkScalar dy = kHeight / sigmaCount;
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|     constexpr SkScalar textSize = 12;
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| 
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|     SkFont font(ToolUtils::create_portable_typeface(), textSize);
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|     font.setEdging(SkFont::Edging::kAlias);
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| 
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|     for (int x = 0; x < sigmaCount; x++) {
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|         SkScalar sigmaX = kBlurSigmas[x];
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|         for (int y = 0; y < sigmaCount; y++) {
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|             SkScalar sigmaY = kBlurSigmas[y];
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| 
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|             SkPaint paint;
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|             paint.setImageFilter(SkImageFilters::Blur(sigmaX, sigmaY, nullptr));
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|             canvas->saveLayer(nullptr, &paint);
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| 
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|             SkRandom rand;
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|             SkPaint textPaint;
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|             textPaint.setColor(ToolUtils::color_to_565(rand.nextBits(24) | 0xFF000000));
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|             for (int i = 0; i < testStringCount; i++) {
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|                 canvas->drawString(kTestStrings[i],
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|                                    SkIntToScalar(x * dx),
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|                                    SkIntToScalar(y * dy + textSize * i + textSize),
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|                                    font,
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|                                    textPaint);
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|             }
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|             canvas->restore();
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|         }
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|     }
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| }
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