void onDraw(int loops, SkCanvas*) override {
while (loops-- > 0) {
SkPixmap pixmap;
SkAssertResult(fBitmap.peekPixels(&pixmap));
SkNullWStream dst;
SkAssertResult(fEncoder(&dst, pixmap));
SkASSERT(dst.bytesWritten() > 0);
}
}
bool SkPDFImage::populate(SkPDFCatalog* catalog) {
if (getState() == kUnused_State) {
// Initializing image data for the first time.
SkDynamicMemoryWStream dctCompressedWStream;
if (!skip_compression(catalog) && fEncoder &&
get_uncompressed_size(fBitmap, fSrcRect) > 1) {
SkBitmap subset;
// Extract subset
if (!fBitmap.extractSubset(&subset, fSrcRect)) {
return false;
}
size_t pixelRefOffset = 0;
SkAutoTUnref<SkData> data(fEncoder(&pixelRefOffset, subset));
if (data.get() && data->size() < get_uncompressed_size(fBitmap,
fSrcRect)) {
this->setData(data.get());
insertName("Filter", "DCTDecode");
insertInt("ColorTransform", kNoColorTransform);
insertInt("Length", this->dataSize());
setState(kCompressed_State);
return true;
}
}
// Fallback method
if (!fStreamValid) {
SkAutoTUnref<SkStream> stream(
extract_image_data(fBitmap, fSrcRect, fIsAlpha, NULL));
this->setData(stream);
fStreamValid = true;
}
return INHERITED::populate(catalog);
} else if (getState() == kNoCompression_State &&
!skip_compression(catalog) &&
(SkFlate::HaveFlate() || fEncoder)) {
// Compression has not been requested when the stream was first created,
// but the new catalog wants it compressed.
if (!getSubstitute()) {
SkPDFStream* substitute = SkNEW_ARGS(SkPDFImage, (*this));
setSubstitute(substitute);
catalog->setSubstitute(this, substitute);
}
return false;
}
return true;
}
