blob: cf1f0e0e1fbb531f483afc758151e57a87ad62b5 [file] [log] [blame]
* 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, options.fColorPtr,