447e9dd8f4
Backed out changeset 505897037daf (bug 1765816) Backed out changeset bc4e2999a2a7 (bug 1755704) Backed out changeset 26b11a2833b0 (bug 1755704)
128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 "mozilla/dom/WebGPUBinding.h"
|
|
#include "CanvasContext.h"
|
|
#include "nsDisplayList.h"
|
|
#include "LayerUserData.h"
|
|
#include "mozilla/dom/HTMLCanvasElement.h"
|
|
#include "mozilla/layers/CompositableInProcessManager.h"
|
|
#include "mozilla/layers/ImageDataSerializer.h"
|
|
#include "mozilla/layers/LayersSurfaces.h"
|
|
#include "mozilla/layers/RenderRootStateManager.h"
|
|
#include "ipc/WebGPUChild.h"
|
|
|
|
namespace mozilla {
|
|
namespace webgpu {
|
|
|
|
NS_IMPL_CYCLE_COLLECTING_ADDREF(CanvasContext)
|
|
NS_IMPL_CYCLE_COLLECTING_RELEASE(CanvasContext)
|
|
|
|
GPU_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_WEAK_PTR(CanvasContext, mTexture,
|
|
mBridge, mCanvasElement,
|
|
mOffscreenCanvas)
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CanvasContext)
|
|
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
|
|
NS_INTERFACE_MAP_ENTRY(nsICanvasRenderingContextInternal)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
CanvasContext::CanvasContext() = default;
|
|
|
|
CanvasContext::~CanvasContext() {
|
|
Cleanup();
|
|
RemovePostRefreshObserver();
|
|
}
|
|
|
|
void CanvasContext::Cleanup() { Unconfigure(); }
|
|
|
|
JSObject* CanvasContext::WrapObject(JSContext* aCx,
|
|
JS::Handle<JSObject*> aGivenProto) {
|
|
return dom::GPUCanvasContext_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
void CanvasContext::Configure(const dom::GPUCanvasConfiguration& aDesc) {
|
|
Unconfigure();
|
|
|
|
// these formats are guaranteed by the spec
|
|
switch (aDesc.mFormat) {
|
|
case dom::GPUTextureFormat::Rgba8unorm:
|
|
case dom::GPUTextureFormat::Rgba8unorm_srgb:
|
|
mGfxFormat = gfx::SurfaceFormat::R8G8B8A8;
|
|
break;
|
|
case dom::GPUTextureFormat::Bgra8unorm:
|
|
case dom::GPUTextureFormat::Bgra8unorm_srgb:
|
|
mGfxFormat = gfx::SurfaceFormat::B8G8R8A8;
|
|
break;
|
|
default:
|
|
NS_WARNING("Specified swap chain format is not supported");
|
|
return;
|
|
}
|
|
|
|
gfx::IntSize actualSize(mWidth, mHeight);
|
|
mHandle = layers::CompositableInProcessManager::GetNextHandle();
|
|
mTexture =
|
|
aDesc.mDevice->InitSwapChain(aDesc, mHandle, mGfxFormat, &actualSize);
|
|
mTexture->mTargetContext = this;
|
|
mBridge = aDesc.mDevice->GetBridge();
|
|
mGfxSize = actualSize;
|
|
|
|
// Force a new frame to be built, which will execute the
|
|
// `CanvasContextType::WebGPU` switch case in `CreateWebRenderCommands` and
|
|
// populate the WR user data.
|
|
if (mCanvasElement) {
|
|
mCanvasElement->InvalidateCanvas();
|
|
} else if (mOffscreenCanvas) {
|
|
dom::OffscreenCanvasDisplayData data;
|
|
data.mSize = {mWidth, mHeight};
|
|
data.mHandle = mHandle;
|
|
mOffscreenCanvas->UpdateDisplayData(data);
|
|
}
|
|
}
|
|
|
|
void CanvasContext::Unconfigure() {
|
|
if (mBridge && mBridge->IsOpen() && mHandle) {
|
|
mBridge->SendSwapChainDestroy(mHandle);
|
|
}
|
|
mHandle = layers::CompositableHandle();
|
|
mBridge = nullptr;
|
|
mTexture = nullptr;
|
|
mGfxFormat = gfx::SurfaceFormat::UNKNOWN;
|
|
}
|
|
|
|
dom::GPUTextureFormat CanvasContext::GetPreferredFormat(Adapter&) const {
|
|
return dom::GPUTextureFormat::Bgra8unorm;
|
|
}
|
|
|
|
RefPtr<Texture> CanvasContext::GetCurrentTexture(ErrorResult& aRv) {
|
|
if (!mTexture) {
|
|
aRv.ThrowOperationError("Canvas not configured");
|
|
return nullptr;
|
|
}
|
|
return mTexture;
|
|
}
|
|
|
|
void CanvasContext::MaybeQueueSwapChainPresent() {
|
|
if (mPendingSwapChainPresent) {
|
|
return;
|
|
}
|
|
|
|
mPendingSwapChainPresent = true;
|
|
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToCurrentThread(
|
|
NewCancelableRunnableMethod("CanvasContext::SwapChainPresent", this,
|
|
&CanvasContext::SwapChainPresent)));
|
|
}
|
|
|
|
void CanvasContext::SwapChainPresent() {
|
|
mPendingSwapChainPresent = false;
|
|
if (mBridge && mBridge->IsOpen() && mHandle && mTexture) {
|
|
mBridge->SwapChainPresent(mHandle, mTexture->mId);
|
|
}
|
|
}
|
|
|
|
} // namespace webgpu
|
|
} // namespace mozilla
|