120 lines
3.7 KiB
C++
120 lines
3.7 KiB
C++
// Copyright (c) 2015 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "atom/browser/api/frame_subscriber.h"
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#include "base/bind.h"
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#include "atom/common/native_mate_converters/gfx_converter.h"
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#include "atom/common/node_includes.h"
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#include "content/public/browser/render_widget_host.h"
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#include <iostream>
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#include "content/browser/compositor/image_transport_factory.h"
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#include "cc/surfaces/surface_manager.h"
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#include "cc/surfaces/surface.h"
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#include "cc/output/copy_output_request.h"
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namespace atom {
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namespace api {
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FrameSubscriberRenderWidgetHostView::FrameSubscriberRenderWidgetHostView() {
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std::cout << "FrameSubscriberRenderWidgetHostView" << std::endl;
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}
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FrameSubscriberRenderWidgetHostView::~FrameSubscriberRenderWidgetHostView() {
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std::cout << "~FrameSubscriberRenderWidgetHostView" << std::endl;
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}
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FrameSubscriber::FrameSubscriber(v8::Isolate* isolate,
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content::RenderWidgetHostView* view,
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const FrameCaptureCallback& callback,
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bool only_dirty)
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: isolate_(isolate),
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view_(view),
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callback_(callback),
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only_dirty_(only_dirty),
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weak_factory_(this) {
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}
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bool FrameSubscriber::ShouldCaptureFrame(
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const gfx::Rect& dirty_rect,
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base::TimeTicks present_time,
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scoped_refptr<media::VideoFrame>* storage,
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DeliverFrameCallback* callback) {
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const auto host = view_ ? view_->GetRenderWidgetHost() : nullptr;
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if (!view_ || !host)
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return false;
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/*if (dirty_rect.IsEmpty())
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return false;*/
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gfx::Rect rect = gfx::Rect(view_->GetVisibleViewportSize());
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if (only_dirty_)
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rect = dirty_rect;
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/*host->CopyFromBackingStore(
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rect,
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rect.size(),
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base::Bind(&FrameSubscriber::OnFrameDelivered,
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weak_factory_.GetWeakPtr(), callback_, rect),
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kBGRA_8888_SkColorType);*/
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const auto base = reinterpret_cast<content::RenderWidgetHostViewBase*>(
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view_);
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content::ImageTransportFactory* itf =
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content::ImageTransportFactory::GetInstance();
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cc::SurfaceManager* sfm = itf->GetSurfaceManager();
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cc::Surface* surface = sfm->GetSurfaceForId(base->SurfaceIdForTesting());
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std::unique_ptr<cc::CopyOutputRequest> request =
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cc::CopyOutputRequest::CreateBitmapRequest(
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base::Bind(&FrameSubscriber::ReadbackResultAsBitmap,
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base::Unretained(this)));
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surface->RequestCopyOfOutput(std::move(request));
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return false;
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}
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void FrameSubscriber::ReadbackResultAsBitmap(
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std::unique_ptr<cc::CopyOutputResult> result) {
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std::unique_ptr<SkBitmap> bitmap = result->TakeBitmap();
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SkAutoPixmapUnlock res;
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if (!bitmap->requestLock(&res))
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return;
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std::cout << res.pixmap().addr() << std::endl;
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}
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void FrameSubscriber::OnFrameDelivered(const FrameCaptureCallback& callback,
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const gfx::Rect& damage_rect,
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const SkBitmap& bitmap,
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content::ReadbackResponse response) {
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if (response != content::ReadbackResponse::READBACK_SUCCESS)
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return;
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v8::Locker locker(isolate_);
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v8::HandleScope handle_scope(isolate_);
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size_t rgb_arr_size = bitmap.width() * bitmap.height() *
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bitmap.bytesPerPixel();
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v8::MaybeLocal<v8::Object> buffer = node::Buffer::New(isolate_, rgb_arr_size);
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if (buffer.IsEmpty())
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return;
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bitmap.copyPixelsTo(
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reinterpret_cast<uint8_t*>(node::Buffer::Data(buffer.ToLocalChecked())),
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rgb_arr_size);
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v8::Local<v8::Value> damage =
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mate::Converter<gfx::Rect>::ToV8(isolate_, damage_rect);
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callback_.Run(buffer.ToLocalChecked(), damage);
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}
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} // namespace api
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} // namespace atom
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