22 lines
		
	
	
		
			995 B
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			22 lines
		
	
	
		
			995 B
		
	
	
	
		
			C++
		
	
	
	
| // Copyright 2019 Google LLC.
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| // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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| #include "tools/fiddle/examples.h"
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| // HASH=4590fbf052659d6e629fbfd827081ae5
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| REG_FIDDLE(Bitmap_readPixels_3, 256, 128, false, 3) {
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| void draw(SkCanvas* canvas) {
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|     std::vector<int32_t> srcPixels;
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|     srcPixels.resize(source.height() * source.width() * 8);
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|     for (int i = 0;  i < 2; ++i) {
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|     SkPixmap pixmap(SkImageInfo::Make(source.width() * 2, source.height(),
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|                     i ? kRGBA_8888_SkColorType : kBGRA_8888_SkColorType, kPremul_SkAlphaType),
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|                     &srcPixels.front() + i * source.width(), source.rowBytes() * 2);
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|         source.readPixels(pixmap);
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|     }
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|     canvas->scale(.25f, .25f);
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|     SkBitmap bitmap;
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|     bitmap.installPixels(SkImageInfo::MakeN32Premul(source.width() * 2, source.height()),
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|                          &srcPixels.front(), source.rowBytes() * 2);
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|     canvas->drawImage(bitmap.asImage(), 0, 0);
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| }
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| }  // END FIDDLE
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