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/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 4; -*- */
/* 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 "SharedSurfaceANGLE.h"
#include <d3d11.h>
#include "GLContextEGL.h"
#include "GLLibraryEGL.h"
#include "mozilla/gfx/DeviceManagerDx.h"
#include "mozilla/gfx/FileHandleWrapper.h"
#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc
namespace mozilla {
namespace gl {
static ID3D11Device* GetD3D11DeviceOfEGLDisplay(GLContextEGL* gle) {
const auto& egl = gle->mEgl;
MOZ_ASSERT(egl);
if (!egl ||
!egl->mLib->IsExtensionSupported(gl::EGLLibExtension::EXT_device_query)) {
return nullptr;
}
// Fetch the D3D11 device.
EGLDeviceEXT eglDevice = nullptr;
egl->fQueryDisplayAttribEXT(LOCAL_EGL_DEVICE_EXT, (EGLAttrib*)&eglDevice);
MOZ_ASSERT(eglDevice);
ID3D11Device* device = nullptr;
egl->mLib->fQueryDeviceAttribEXT(eglDevice, LOCAL_EGL_D3D11_DEVICE_ANGLE,
(EGLAttrib*)&device);
if (!device) {
return nullptr;
}
return device;
}
// Returns `EGL_NO_SURFACE` (`0`) on error.
static EGLSurface CreatePBufferSurface(EglDisplay* egl, EGLConfig config,
const gfx::IntSize& size,
RefPtr<ID3D11Texture2D> texture2D) {
const EGLint attribs[] = {LOCAL_EGL_WIDTH, size.width, LOCAL_EGL_HEIGHT,
size.height, LOCAL_EGL_NONE};
const auto buffer = reinterpret_cast<EGLClientBuffer>(texture2D.get());
EGLSurface surface = egl->fCreatePbufferFromClientBuffer(
LOCAL_EGL_D3D_TEXTURE_ANGLE, buffer, config, attribs);
if (!surface) {
EGLint err = egl->mLib->fGetError();
gfxCriticalError() << "Failed to create Pbuffer surface error: "
<< gfx::hexa(err) << " Size : " << size;
return 0;
}
return surface;
}
/*static*/
UniquePtr<SharedSurface_ANGLEShareHandle>
SharedSurface_ANGLEShareHandle::Create(const SharedSurfaceDesc& desc) {
const auto& gle = GLContextEGL::Cast(desc.gl);
const auto& egl = gle->mEgl;
MOZ_ASSERT(egl);
MOZ_ASSERT(egl->IsExtensionSupported(
EGLExtension::ANGLE_surface_d3d_texture_2d_share_handle));
auto* device = GetD3D11DeviceOfEGLDisplay(gle);
if (!device) {
return nullptr;
}
// Create a texture in case we need to readback.
const DXGI_FORMAT format = DXGI_FORMAT_B8G8R8A8_UNORM;
CD3D11_TEXTURE2D_DESC texDesc(
format, desc.size.width, desc.size.height, 1, 1,
D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
texDesc.MiscFlags = D3D11_RESOURCE_MISC_SHARED_NTHANDLE |
D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;
RefPtr<ID3D11Texture2D> texture2D;
auto hr =
device->CreateTexture2D(&texDesc, nullptr, getter_AddRefs(texture2D));
if (FAILED(hr)) {
return nullptr;
}
RefPtr<IDXGIResource1> texDXGI;
hr = texture2D->QueryInterface(__uuidof(IDXGIResource1),
getter_AddRefs(texDXGI));
if (FAILED(hr)) {
return nullptr;
}
HANDLE sharedHandle = nullptr;
texDXGI->CreateSharedHandle(
nullptr, DXGI_SHARED_RESOURCE_READ | DXGI_SHARED_RESOURCE_WRITE, nullptr,
&sharedHandle);
RefPtr<gfx::FileHandleWrapper> handle =
new gfx::FileHandleWrapper(UniqueFileHandle(sharedHandle));
RefPtr<IDXGIKeyedMutex> keyedMutex;
texture2D->QueryInterface((IDXGIKeyedMutex**)getter_AddRefs(keyedMutex));
if (!keyedMutex) {
return nullptr;
}
const auto& config = gle->mSurfaceConfig;
MOZ_ASSERT(config);
EGLSurface pbuffer =
CreatePBufferSurface(egl.get(), config, desc.size, texture2D);
if (!pbuffer) return nullptr;
return AsUnique(new SharedSurface_ANGLEShareHandle(
desc, egl, pbuffer, std::move(handle), keyedMutex));
}
SharedSurface_ANGLEShareHandle::SharedSurface_ANGLEShareHandle(
const SharedSurfaceDesc& desc, const std::weak_ptr<EglDisplay>& egl,
EGLSurface pbuffer, RefPtr<gfx::FileHandleWrapper>&& aSharedHandle,
const RefPtr<IDXGIKeyedMutex>& keyedMutex)
: SharedSurface(desc, nullptr),
mEGL(egl),
mPBuffer(pbuffer),
mSharedHandle(std::move(aSharedHandle)),
mKeyedMutex(keyedMutex) {}
SharedSurface_ANGLEShareHandle::~SharedSurface_ANGLEShareHandle() {
const auto& gl = mDesc.gl;
if (gl && GLContextEGL::Cast(gl)->GetEGLSurfaceOverride() == mPBuffer) {
GLContextEGL::Cast(gl)->SetEGLSurfaceOverride(EGL_NO_SURFACE);
}
const auto egl = mEGL.lock();
if (egl) {
egl->fDestroySurface(mPBuffer);
}
}
void SharedSurface_ANGLEShareHandle::LockProdImpl() {
const auto& gl = mDesc.gl;
GLContextEGL::Cast(gl)->SetEGLSurfaceOverride(mPBuffer);
}
void SharedSurface_ANGLEShareHandle::UnlockProdImpl() {}
void SharedSurface_ANGLEShareHandle::ProducerAcquireImpl() {
HRESULT hr = mKeyedMutex->AcquireSync(0, 10000);
if (hr == WAIT_TIMEOUT) {
MOZ_CRASH("GFX: ANGLE share handle timeout");
}
}
void SharedSurface_ANGLEShareHandle::ProducerReleaseImpl() {
const auto& gl = mDesc.gl;
// XXX: ReleaseSync() has an implicit flush of the D3D commands
// whether we need Flush() or not depends on the ANGLE semantics.
// For now, we'll just do it
gl->fFlush();
mKeyedMutex->ReleaseSync(0);
}
void SharedSurface_ANGLEShareHandle::ProducerReadAcquireImpl() {
ProducerAcquireImpl();
}
void SharedSurface_ANGLEShareHandle::ProducerReadReleaseImpl() {
mKeyedMutex->ReleaseSync(0);
}
Maybe<layers::SurfaceDescriptor>
SharedSurface_ANGLEShareHandle::ToSurfaceDescriptor() {
const auto format = gfx::SurfaceFormat::B8G8R8A8;
return Some(layers::SurfaceDescriptorD3D10(
mSharedHandle, /* gpuProcessTextureId */ Nothing(),
/* arrayIndex */ 0, format, mDesc.size, mDesc.colorSpace,
gfx::ColorRange::FULL, /* hasKeyedMutex */ true,
/* fenceInfo */ Nothing(), /* gpuProcessQueryId */ Nothing()));
}
////////////////////////////////////////////////////////////////////////////////
// Factory
/*static*/
UniquePtr<SurfaceFactory_ANGLEShareHandle>
SurfaceFactory_ANGLEShareHandle::Create(GLContext& gl) {
if (!gl.IsANGLE()) return nullptr;
const auto& gle = *GLContextEGL::Cast(&gl);
const auto& egl = gle.mEgl;
if (!egl->IsExtensionSupported(
EGLExtension::ANGLE_surface_d3d_texture_2d_share_handle)) {
return nullptr;
}
if (XRE_IsContentProcess()) {
gfxPlatform::GetPlatform()->EnsureDevicesInitialized();
}
gfx::DeviceManagerDx* dm = gfx::DeviceManagerDx::Get();
MOZ_ASSERT(dm);
if (gl.IsWARP() != dm->IsWARP() || !dm->TextureSharingWorks()) {
return nullptr;
}
return AsUnique(new SurfaceFactory_ANGLEShareHandle(
{&gl, SharedSurfaceType::EGLSurfaceANGLE, layers::TextureType::D3D11,
true}));
}
} /* namespace gl */
} /* namespace mozilla */
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