void SkPictureData::flattenToBuffer(SkWriteBuffer& buffer) const {
int i, n;
// we never record bitmaps anymore, only images
SkASSERT(fBitmaps.count() == 0);
if ((n = fPaints.count()) > 0) {
write_tag_size(buffer, SK_PICT_PAINT_BUFFER_TAG, n);
for (i = 0; i < n; i++) {
buffer.writePaint(fPaints[i]);
}
}
if ((n = fPaths.count()) > 0) {
write_tag_size(buffer, SK_PICT_PATH_BUFFER_TAG, n);
buffer.writeInt(n);
for (int i = 0; i < n; i++) {
buffer.writePath(fPaths[i]);
}
}
if (fTextBlobCount > 0) {
write_tag_size(buffer, SK_PICT_TEXTBLOB_BUFFER_TAG, fTextBlobCount);
for (i = 0; i < fTextBlobCount; ++i) {
fTextBlobRefs[i]->flatten(buffer);
}
}
if (fImageCount > 0) {
write_tag_size(buffer, SK_PICT_IMAGE_BUFFER_TAG, fImageCount);
for (i = 0; i < fImageCount; ++i) {
buffer.writeImage(fImageRefs[i]);
}
}
}
void SkPictureData::serialize(SkWStream* stream,
SkPixelSerializer* pixelSerializer,
SkRefCntSet* topLevelTypeFaceSet) const {
// This can happen at pretty much any time, so might as well do it first.
write_tag_size(stream, SK_PICT_READER_TAG, fOpData->size());
stream->write(fOpData->bytes(), fOpData->size());
// We serialize all typefaces into the typeface section of the top-level picture.
SkRefCntSet localTypefaceSet;
SkRefCntSet* typefaceSet = topLevelTypeFaceSet ? topLevelTypeFaceSet : &localTypefaceSet;
// We delay serializing the bulk of our data until after we've serialized
// factories and typefaces by first serializing to an in-memory write buffer.
SkFactorySet factSet; // buffer refs factSet, so factSet must come first.
SkWriteBuffer buffer(SkWriteBuffer::kCrossProcess_Flag);
buffer.setFactoryRecorder(&factSet);
buffer.setPixelSerializer(pixelSerializer);
buffer.setTypefaceRecorder(typefaceSet);
this->flattenToBuffer(buffer);
// Dummy serialize our sub-pictures for the side effect of filling
// typefaceSet with typefaces from sub-pictures.
struct DevNull: public SkWStream {
DevNull() : fBytesWritten(0) {}
size_t fBytesWritten;
bool write(const void*, size_t size) override { fBytesWritten += size; return true; }
size_t bytesWritten() const override { return fBytesWritten; }
} devnull;
for (int i = 0; i < fPictureCount; i++) {
fPictureRefs[i]->serialize(&devnull, pixelSerializer, typefaceSet);
}
// We need to write factories before we write the buffer.
// We need to write typefaces before we write the buffer or any sub-picture.
WriteFactories(stream, factSet);
if (typefaceSet == &localTypefaceSet) {
WriteTypefaces(stream, *typefaceSet);
}
// Write the buffer.
write_tag_size(stream, SK_PICT_BUFFER_SIZE_TAG, buffer.bytesWritten());
buffer.writeToStream(stream);
// Write sub-pictures by calling serialize again.
if (fPictureCount > 0) {
write_tag_size(stream, SK_PICT_PICTURE_TAG, fPictureCount);
for (int i = 0; i < fPictureCount; i++) {
fPictureRefs[i]->serialize(stream, pixelSerializer, typefaceSet);
}
}
stream->write32(SK_PICT_EOF_TAG);
}
void SkPictureData::flatten(SkWriteBuffer& buffer) const {
write_tag_size(buffer, SK_PICT_READER_TAG, fOpData->size());
buffer.writeByteArray(fOpData->bytes(), fOpData->size());
if (fPictureCount > 0) {
write_tag_size(buffer, SK_PICT_PICTURE_TAG, fPictureCount);
for (int i = 0; i < fPictureCount; i++) {
fPictureRefs[i]->flatten(buffer);
}
}
// Write this picture playback's data into a writebuffer
this->flattenToBuffer(buffer);
buffer.write32(SK_PICT_EOF_TAG);
}
void SkPictureData::WriteFactories(SkWStream* stream, const SkFactorySet& rec) {
int count = rec.count();
SkAutoSTMalloc<16, SkFlattenable::Factory> storage(count);
SkFlattenable::Factory* array = (SkFlattenable::Factory*)storage.get();
rec.copyToArray(array);
size_t size = compute_chunk_size(array, count);
// TODO: write_tag_size should really take a size_t
write_tag_size(stream, SK_PICT_FACTORY_TAG, (uint32_t) size);
SkDEBUGCODE(size_t start = stream->bytesWritten());
stream->write32(count);
for (int i = 0; i < count; i++) {
const char* name = SkFlattenable::FactoryToName(array[i]);
if (nullptr == name || 0 == *name) {
stream->writePackedUInt(0);
} else {
size_t len = strlen(name);
stream->writePackedUInt(len);
stream->write(name, len);
}
}
SkASSERT(size == (stream->bytesWritten() - start));
}
void SkPictureData::WriteTypefaces(SkWStream* stream, const SkRefCntSet& rec) {
int count = rec.count();
write_tag_size(stream, SK_PICT_TYPEFACE_TAG, count);
SkAutoSTMalloc<16, SkTypeface*> storage(count);
SkTypeface** array = (SkTypeface**)storage.get();
rec.copyToArray((SkRefCnt**)array);
for (int i = 0; i < count; i++) {
array[i]->serialize(stream);
}
}
void SkPictureData::WriteTypefaces(SkWStream* stream, const SkRefCntSet& rec) {
int count = rec.count();
write_tag_size(stream, SK_PICT_TYPEFACE_TAG, count);
SkAutoSTMalloc<16, SkTypeface*> storage(count);
SkTypeface** array = (SkTypeface**)storage.get();
rec.copyToArray((SkRefCnt**)array);
for (int i = 0; i < count; i++) {
#ifdef SK_PICTURE_FORCE_FONT_EMBEDDING
array[i]->serializeForcingEmbedding(stream);
#else
// TODO: if (embedFonts) { array[i]->serializeForcingEmbedding(stream) } else
array[i]->serialize(stream);
#endif
}
}
