bool SkAndroidCodec::getSupportedSubset(SkIRect* desiredSubset) const {
if (!desiredSubset || !is_valid_subset(*desiredSubset, fInfo.dimensions())) {
return false;
}
return this->onGetSupportedSubset(desiredSubset);
}
SkCodec::Result SkAndroidCodec::getAndroidPixels(const SkImageInfo& info, void* pixels,
size_t rowBytes, const AndroidOptions* options) {
if (!pixels) {
return SkCodec::kInvalidParameters;
}
if (rowBytes < info.minRowBytes()) {
return SkCodec::kInvalidParameters;
}
AndroidOptions defaultOptions;
if (!options) {
options = &defaultOptions;
} else if (options->fSubset) {
if (!is_valid_subset(*options->fSubset, fInfo.dimensions())) {
return SkCodec::kInvalidParameters;
}
if (SkIRect::MakeSize(fInfo.dimensions()) == *options->fSubset) {
// The caller wants the whole thing, rather than a subset. Modify
// the AndroidOptions passed to onGetAndroidPixels to not specify
// a subset.
defaultOptions = *options;
defaultOptions.fSubset = nullptr;
options = &defaultOptions;
}
}
return this->onGetAndroidPixels(info, pixels, rowBytes, *options);
}
SkCodec::Result SkAndroidCodec::getAndroidPixels(const SkImageInfo& requestInfo,
void* requestPixels, size_t requestRowBytes, const AndroidOptions* options) {
if (!requestPixels) {
return SkCodec::kInvalidParameters;
}
if (requestRowBytes < requestInfo.minRowBytes()) {
return SkCodec::kInvalidParameters;
}
SkImageInfo adjustedInfo = fInfo;
if (ExifOrientationBehavior::kRespect == fOrientationBehavior
&& SkPixmapPriv::ShouldSwapWidthHeight(fCodec->getOrigin())) {
adjustedInfo = SkPixmapPriv::SwapWidthHeight(adjustedInfo);
}
AndroidOptions defaultOptions;
if (!options) {
options = &defaultOptions;
} else if (options->fSubset) {
if (!is_valid_subset(*options->fSubset, adjustedInfo.dimensions())) {
return SkCodec::kInvalidParameters;
}
if (SkIRect::MakeSize(adjustedInfo.dimensions()) == *options->fSubset) {
// The caller wants the whole thing, rather than a subset. Modify
// the AndroidOptions passed to onGetAndroidPixels to not specify
// a subset.
defaultOptions = *options;
defaultOptions.fSubset = nullptr;
options = &defaultOptions;
}
}
if (ExifOrientationBehavior::kIgnore == fOrientationBehavior) {
return this->onGetAndroidPixels(requestInfo, requestPixels, requestRowBytes, *options);
}
SkCodec::Result result;
auto decode = [this, options, &result](const SkPixmap& pm) {
result = this->onGetAndroidPixels(pm.info(), pm.writable_addr(), pm.rowBytes(), *options);
return acceptable_result(result);
};
SkPixmap dst(requestInfo, requestPixels, requestRowBytes);
if (SkPixmapPriv::Orient(dst, fCodec->getOrigin(), decode)) {
return result;
}
// Orient returned false. If onGetAndroidPixels succeeded, then Orient failed internally.
if (acceptable_result(result)) {
return SkCodec::kInternalError;
}
return result;
}
