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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "InProcessCompositorWidget.h"
#include "mozilla/VsyncDispatcher.h"
#include "mozilla/layers/NativeLayer.h"
#include "nsIWidget.h"
namespace mozilla {
namespace widget {
// Platforms with no OOP compositor process support use
// InProcessCompositorWidget by default.
// macOS doesn't have a platform-specific in process compositor,
// so it uses this implementation to create a generic in process
// compositor, when requested.
#if !defined(MOZ_WIDGET_SUPPORTS_OOP_COMPOSITING) || defined(XP_MACOSX)
/* static */
RefPtr<CompositorWidget> CompositorWidget::CreateLocal(
const CompositorWidgetInitData& aInitData,
const layers::CompositorOptions& aOptions, nsIWidget* aWidget) {
// We're getting crashes from storing a NULL mWidget, and this is the
// only remaining explanation that doesn't involve memory corruption,
// so placing a release assert here. For even more sanity-checking, we
// do it after the static_cast.
nsIWidget* widget = static_cast<nsIWidget*>(aWidget);
MOZ_RELEASE_ASSERT(widget);
return new InProcessCompositorWidget(aOptions, widget);
}
#endif
InProcessCompositorWidget::InProcessCompositorWidget(
const layers::CompositorOptions& aOptions, nsIWidget* aWidget)
: CompositorWidget(aOptions),
mWidget(aWidget),
mCanary(CANARY_VALUE),
mWidgetSanity(aWidget) {
// The only method of construction that is used outside of unit tests is
// ::CreateLocal, above. That method of construction asserts that mWidget
// is not assigned a NULL value. And yet mWidget is NULL in some crash
// reports that involve other class methods. Adding a release assert here
// will give us the earliest possible notification that we're headed for
// a crash.
MOZ_RELEASE_ASSERT(mWidget);
}
bool InProcessCompositorWidget::PreRender(WidgetRenderingContext* aContext) {
CheckWidgetSanity();
return mWidget->PreRender(aContext);
}
void InProcessCompositorWidget::PostRender(WidgetRenderingContext* aContext) {
CheckWidgetSanity();
mWidget->PostRender(aContext);
}
layers::NativeLayerRoot* InProcessCompositorWidget::GetNativeLayerRoot() {
CheckWidgetSanity();
return mWidget->GetNativeLayerRoot();
}
already_AddRefed<gfx::DrawTarget>
InProcessCompositorWidget::StartRemoteDrawing() {
CheckWidgetSanity();
return mWidget->StartRemoteDrawing();
}
already_AddRefed<gfx::DrawTarget>
InProcessCompositorWidget::StartRemoteDrawingInRegion(
const LayoutDeviceIntRegion& aInvalidRegion) {
CheckWidgetSanity();
return mWidget->StartRemoteDrawingInRegion(aInvalidRegion);
}
void InProcessCompositorWidget::EndRemoteDrawing() {
CheckWidgetSanity();
mWidget->EndRemoteDrawing();
}
void InProcessCompositorWidget::EndRemoteDrawingInRegion(
gfx::DrawTarget* aDrawTarget, const LayoutDeviceIntRegion& aInvalidRegion) {
CheckWidgetSanity();
mWidget->EndRemoteDrawingInRegion(aDrawTarget, aInvalidRegion);
}
void InProcessCompositorWidget::CleanupRemoteDrawing() {
CheckWidgetSanity();
mWidget->CleanupRemoteDrawing();
}
void InProcessCompositorWidget::CleanupWindowEffects() {
CheckWidgetSanity();
mWidget->CleanupWindowEffects();
}
bool InProcessCompositorWidget::InitCompositor(
layers::Compositor* aCompositor) {
CheckWidgetSanity();
return mWidget->InitCompositor(aCompositor);
}
LayoutDeviceIntSize InProcessCompositorWidget::GetClientSize() {
CheckWidgetSanity();
return mWidget->GetClientSize();
}
uint32_t InProcessCompositorWidget::GetGLFrameBufferFormat() {
CheckWidgetSanity();
return mWidget->GetGLFrameBufferFormat();
}
uintptr_t InProcessCompositorWidget::GetWidgetKey() {
CheckWidgetSanity();
return reinterpret_cast<uintptr_t>(mWidget);
}
nsIWidget* InProcessCompositorWidget::RealWidget() { return mWidget; }
void InProcessCompositorWidget::ObserveVsync(VsyncObserver* aObserver) {
CheckWidgetSanity();
if (RefPtr<CompositorVsyncDispatcher> cvd =
mWidget->GetCompositorVsyncDispatcher()) {
cvd->SetCompositorVsyncObserver(aObserver);
}
}
const char* InProcessCompositorWidget::CANARY_VALUE =
reinterpret_cast<char*>(0x1a1a1a1a);
void InProcessCompositorWidget::CheckWidgetSanity() {
MOZ_RELEASE_ASSERT(mWidgetSanity == mWidget);
MOZ_RELEASE_ASSERT(mCanary == CANARY_VALUE);
}
} // namespace widget
} // namespace mozilla
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