| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkCodec.h" |
| #include "SkCodecPriv.h" |
| #include "SkWebpAdapterCodec.h" |
| |
| SkWebpAdapterCodec::SkWebpAdapterCodec(SkWebpCodec* codec) |
| : INHERITED(codec) |
| {} |
| |
| SkISize SkWebpAdapterCodec::onGetSampledDimensions(int sampleSize) const { |
| float scale = get_scale_from_sample_size(sampleSize); |
| return this->codec()->getScaledDimensions(scale); |
| } |
| |
| bool SkWebpAdapterCodec::onGetSupportedSubset(SkIRect* desiredSubset) const { |
| return this->codec()->getValidSubset(desiredSubset); |
| } |
| |
| SkCodec::Result SkWebpAdapterCodec::onGetAndroidPixels(const SkImageInfo& info, void* pixels, |
| size_t rowBytes, const AndroidOptions& options) { |
| // SkWebpCodec will support pretty much any dimensions that we provide, but we want |
| // to be stricter about the type of scaling that we allow, so we will add an extra |
| // check here. |
| SkISize supportedSize; |
| if (!options.fSubset) { |
| supportedSize = this->onGetSampledDimensions(options.fSampleSize); |
| } else { |
| supportedSize = this->getSampledSubsetDimensions(options.fSampleSize, *options.fSubset); |
| } |
| if (supportedSize != info.dimensions()) { |
| return SkCodec::kInvalidParameters; |
| } |
| |
| SkCodec::Options codecOptions; |
| codecOptions.fZeroInitialized = options.fZeroInitialized; |
| codecOptions.fSubset = options.fSubset; |
| codecOptions.fPremulBehavior = SkTransferFunctionBehavior::kIgnore; |
| return this->codec()->getPixels(info, pixels, rowBytes, &codecOptions); |
| } |