mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-06-17 21:29:53 +00:00
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
|
|
/* 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 "nsDebug.h"
|
|
#include "D3D11SurfaceHolder.h"
|
|
#include "gfxWindowsPlatform.h"
|
|
#include "mozilla/gfx/2D.h"
|
|
#include "mozilla/layers/TextureD3D11.h"
|
|
#include <d3d11.h>
|
|
|
|
namespace mozilla {
|
|
namespace plugins {
|
|
|
|
using namespace mozilla::gfx;
|
|
using namespace mozilla::layers;
|
|
|
|
D3D11SurfaceHolder::D3D11SurfaceHolder(ID3D11Texture2D* back,
|
|
SurfaceFormat format,
|
|
const IntSize& size)
|
|
: mDevice11(gfxWindowsPlatform::GetPlatform()->GetD3D11ContentDevice()),
|
|
mBack(back),
|
|
mFormat(format),
|
|
mSize(size)
|
|
{
|
|
}
|
|
|
|
D3D11SurfaceHolder::~D3D11SurfaceHolder()
|
|
{
|
|
}
|
|
|
|
bool
|
|
D3D11SurfaceHolder::IsValid()
|
|
{
|
|
// If a TDR occurred, platform devices will be recreated.
|
|
if (gfxWindowsPlatform::GetPlatform()->GetD3D11ContentDevice() != mDevice11) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
D3D11SurfaceHolder::CopyToTextureClient(TextureClient* aClient)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
D3D11TextureData* data = aClient->GetInternalData()->AsD3D11TextureData();
|
|
if (!data) {
|
|
// We don't support this yet. We expect to have a D3D11 compositor, and
|
|
// therefore D3D11 surfaces.
|
|
NS_WARNING("Plugin DXGI surface has unsupported TextureClient");
|
|
return false;
|
|
}
|
|
|
|
RefPtr<ID3D11DeviceContext> context;
|
|
mDevice11->GetImmediateContext(getter_AddRefs(context));
|
|
if (!context) {
|
|
NS_WARNING("Could not get an immediate D3D11 context");
|
|
return false;
|
|
}
|
|
|
|
TextureClientAutoLock autoLock(aClient, OpenMode::OPEN_WRITE_ONLY);
|
|
if (!autoLock.Succeeded()) {
|
|
return false;
|
|
}
|
|
|
|
RefPtr<IDXGIKeyedMutex> mutex;
|
|
HRESULT hr = mBack->QueryInterface(__uuidof(IDXGIKeyedMutex), (void **)getter_AddRefs(mutex));
|
|
if (FAILED(hr) || !mutex) {
|
|
NS_WARNING("Could not acquire an IDXGIKeyedMutex");
|
|
return false;
|
|
}
|
|
|
|
hr = mutex->AcquireSync(0, 0);
|
|
if (hr == WAIT_ABANDONED || hr == WAIT_TIMEOUT || FAILED(hr)) {
|
|
NS_WARNING("Could not acquire DXGI surface lock - plugin forgot to release?");
|
|
return false;
|
|
}
|
|
|
|
context->CopyResource(data->GetD3D11Texture(), mBack);
|
|
|
|
mutex->ReleaseSync(0);
|
|
return true;
|
|
}
|
|
|
|
} // namespace plugins
|
|
} // namespace mozilla
|