Are you trying to do this within Chrome's renderer or GPU processes? If so, the sandbox will prevent you from touching the local disk. You would need to extend the sandbox policies to allow writing to a directory on disk - some place that will not collide with other programs, so that if a bad actor causes data to be written to that directory, no harm will be caused. See https://source.chromium.org/chromium/chromium/src/+/main:sandbox/policy/mac/ for the macOS sandbox policies.
-Ken On Tue, Apr 30, 2024 at 8:59 AM Steven Whelan <stevenwhela...@gmail.com> wrote: > Hi > I have modified the Serialize > <https://source.chromium.org/chromium/chromium/src/+/main:cc/paint/paint_op_buffer_serializer.cc;l=5;bpv=1;bpt=1?q=paint_op_buffer_ser&ss=chromium%2Fchromium%2Fsrc> > method > to Record all PaintOp as SKPicture. > I want to replay this SKPicture on a remote browser. So, I am trying to > save this SKPicture to a file, but I am not able to do so, since > file.isOpen gives false. > Please help here > > void PaintOpBufferSerializer::Serialize(const PaintOpBuffer& buffer, > const std::vector<size_t>* offsets, > const Preamble& preamble) { > DCHECK_EQ(serialized_op_count_, 0u); > > std::unique_ptr<SkCanvas> canvas = MakeAnalysisCanvas(options_); > // These PlaybackParams use the initial (identity) canvas matrix, as > they are > // only used for serializing the preamble and the initial save / final > restore > // SerializeBuffer will create its own PlaybackParams based on the > > * SkPictureRecorder recorder;* > * SkCanvas* recordingCanvas = > recorder.beginRecording(canvas->getLocalClipBounds()); * > // post-preamble canvas. > PlaybackParams params = MakeParams(canvas.get()); > int save_count = canvas->getSaveCount(); > Save(canvas.get(), params); > SerializePreamble(canvas.get(), preamble, params); > SerializeBuffer(canvas.get(), buffer, offsets); > *SerializeBuffer(recordingCanvas, buffer, offsets);* > > > *sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture(); > SkSerialProcs sProcs; sk_sp<SkData> readableData = > picture->serialize(&sProcs);* > // Assuming the byte array is stored in the 'data' field of the SkData > object > const void* data = readableData->data(); > size_t size = readableData->size(); > > * <HOW TO SAVE READABLE DATA TO A FILE>* > /*sk_sp<SkData> receievedData = SkData::MakeWithoutCopy(data, size); > sk_sp<SkPicture> copy = > SkPicture::MakeFromData(receievedData->data(), > receievedData->size()); > copy->playback(recordingCanvas);*/ > RestoreToCount(canvas.get(), save_count, params); > } > > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to blink-dev+unsubscr...@chromium.org. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/97946d8b-27dc-43c4-a262-e4f6288be9d6n%40chromium.org > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/97946d8b-27dc-43c4-a262-e4f6288be9d6n%40chromium.org?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAMYvS2d3HqhLAkNg3AFKTJFPMVPaju_rmuq0dza8i7YisbEyMA%40mail.gmail.com.
