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