bool SkImageFilter::Common::unflatten(SkReadBuffer& buffer, int expectedCount) {
const int count = buffer.readInt();
if (!buffer.validate(count >= 0)) {
return false;
}
if (!buffer.validate(expectedCount < 0 || count == expectedCount)) {
return false;
}
this->allocInputs(count);
for (int i = 0; i < count; i++) {
if (buffer.readBool()) {
fInputs[i] = buffer.readImageFilter();
}
if (!buffer.isValid()) {
return false;
}
}
SkRect rect;
buffer.readRect(&rect);
if (!buffer.isValid() || !buffer.validate(SkIsValidRect(rect))) {
return false;
}
uint32_t flags = buffer.readUInt();
fCropRect = CropRect(rect, flags);
if (buffer.isVersionLT(SkReadBuffer::kImageFilterUniqueID_Version)) {
fUniqueID = next_image_filter_unique_id();
} else {
fUniqueID = buffer.readUInt();
}
return buffer.isValid();
}
SkImageFilter::SkImageFilter(sk_sp<SkImageFilter>* inputs,
int inputCount,
const CropRect* cropRect)
: fUsesSrcInput(false)
, fUniqueID(next_image_filter_unique_id()) {
this->init(inputs, inputCount, cropRect);
}
SkImageFilter::SkImageFilter(int inputCount, SkReadBuffer& buffer)
: fUsesSrcInput(false)
, fCropRect(SkRect(), 0x0)
, fUniqueID(next_image_filter_unique_id()) {
Common common;
if (common.unflatten(buffer, inputCount)) {
this->init(common.inputs(), common.inputCount(), &common.cropRect());
}
}
SkImageFilter::SkImageFilter(int inputCount, SkImageFilter** inputs, const CropRect* cropRect)
: fInputCount(inputCount),
fInputs(new SkImageFilter*[inputCount]),
fUsesSrcInput(false),
fCropRect(cropRect ? *cropRect : CropRect(SkRect(), 0x0)),
fUniqueID(next_image_filter_unique_id()) {
for (int i = 0; i < inputCount; ++i) {
if (NULL == inputs[i] || inputs[i]->usesSrcInput()) {
fUsesSrcInput = true;
}
fInputs[i] = inputs[i];
SkSafeRef(fInputs[i]);
}
}
SkImageFilter::SkImageFilter(int inputCount, SkReadBuffer& buffer)
: fUsesSrcInput(false)
, fUniqueID(next_image_filter_unique_id()) {
Common common;
if (common.unflatten(buffer, inputCount)) {
fCropRect = common.cropRect();
fInputCount = common.inputCount();
fInputs = SkNEW_ARRAY(SkImageFilter*, fInputCount);
common.detachInputs(fInputs);
for (int i = 0; i < fInputCount; ++i) {
if (NULL == fInputs[i] || fInputs[i]->usesSrcInput()) {
fUsesSrcInput = true;
}
}
} else {
