| // 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=8e3c8a9c1d0d2e9b8bf66e24d274f792 |
| REG_FIDDLE(Pixmap_scalePixels, 256, 256, false, 3) { |
| void draw(SkCanvas* canvas) { |
| SkImageInfo info = SkImageInfo::MakeN32Premul(image->width(), image->height()); |
| std::vector<int32_t> srcPixels; |
| 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 } ) { |
| info = SkImageInfo::MakeN32Premul(image->width() + offset, image->height()); |
| rowBytes = info.width() * 4; |
| std::vector<int32_t> dstPixels; |
| dstPixels.resize(image->height() * rowBytes); |
| SkPixmap dstmap(info, &dstPixels.front(), rowBytes); |
| pixmap.scalePixels(dstmap, SkSamplingOptions(SkFilterMode::kLinear, |
| SkMipmapMode::kNearest)); |
| SkBitmap bitmap; |
| bitmap.installPixels(dstmap); |
| canvas->translate(32, 32); |
| canvas->drawImage(bitmap.asImage(), 0, 0); |
| } |
| } |
| } // END FIDDLE |