// 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=094ca0bd37588cc7be241bb387a3e17b REG_FIDDLE(Pixmap_readPixels_2, 256, 256, false, 3) { void draw(SkCanvas* canvas) { SkImageInfo info = SkImageInfo::MakeN32Premul(image->width(), image->height()); std::vector srcPixels; const int rowBytes = image->width() * 4; srcPixels.resize(image->height() * rowBytes); SkPixmap pixmap(info, (const void*) &srcPixels.front(), rowBytes); image->readPixels(nullptr, pixmap, 0, 0); for (int offset : { 32, 64, 96 } ) { std::vector dstPixels; dstPixels.resize(image->height() * rowBytes); pixmap.readPixels(info, &dstPixels.front(), rowBytes, offset, 0); SkBitmap bitmap; SkPixmap dstmap(info, &dstPixels.front(), rowBytes); bitmap.installPixels(dstmap); canvas->translate(32, 32); canvas->drawImage(bitmap.asImage(), 0, 0); } } } // END FIDDLE