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Unified Diff: content/browser/gpu/browser_native_pixmap_manager_ozone.cc

Issue 1248713002: ozone: ClientPixmapManager passes VGEM fd from browser to renderer. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: rebase to lastest crrev.com/1128113011 Created 5 years, 5 months ago
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Index: content/browser/gpu/browser_native_pixmap_manager_ozone.cc
diff --git a/content/browser/gpu/browser_native_pixmap_manager_ozone.cc b/content/browser/gpu/browser_native_pixmap_manager_ozone.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7a4e1b6bb682b9348f19ad319e509222b3f2ebfe
--- /dev/null
+++ b/content/browser/gpu/browser_native_pixmap_manager_ozone.cc
@@ -0,0 +1,119 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/browser/gpu/browser_native_pixmap_manager_ozone.h"
+
+#include "base/memory/singleton.h"
+#include "base/posix/eintr_wrapper.h"
+#include "content/common/gpu/native_pixmap_manager_ozone_messages.h"
+#include "content/public/browser/browser_message_filter.h"
+#include "ui/ozone/public/ozone_platform.h"
+
+namespace content {
+
+namespace {
+
+class BrowserNativePixmapManagerMessageFilter : public BrowserMessageFilter {
+ public:
+ explicit BrowserNativePixmapManagerMessageFilter(
+ BrowserNativePixmapManager* manager)
+ : BrowserMessageFilter(BrowserNativePixmapManagerMsgStart),
+ manager_(manager) {}
+
+ bool OnMessageReceived(const IPC::Message& message) override {
+ bool handled = true;
+ IPC_BEGIN_MESSAGE_MAP(BrowserNativePixmapManagerMessageFilter, message)
+ IPC_MESSAGE_HANDLER_DELAY_REPLY(
+ BrowserNativePixmapManagerMsg_SyncGetVirtualDevice,
+ OnGetVirtualDevice)
+ IPC_MESSAGE_UNHANDLED(handled = false)
+ IPC_END_MESSAGE_MAP()
+ return handled;
+ }
+
+ private:
+ ~BrowserNativePixmapManagerMessageFilter() override {}
+
+ void OnGetVirtualDevice(IPC::Message* reply) {
+ DCHECK(manager_);
+ manager_->GetVirtualDeviceForChildProcess(base::Bind(
+ &BrowserNativePixmapManagerMessageFilter::VirtualDeviceRelpied, this,
+ reply));
+ }
+ void VirtualDeviceRelpied(IPC::Message* reply,
+ const base::FileDescriptor& device) {
+ DCHECK_CURRENTLY_ON(BrowserThread::IO);
+ BrowserNativePixmapManagerMsg_SyncGetVirtualDevice::WriteReplyParams(
+ reply, device);
+ Send(reply);
+ }
+
+ BrowserNativePixmapManager* manager_;
+
+ DISALLOW_COPY_AND_ASSIGN(BrowserNativePixmapManagerMessageFilter);
+};
+
+void DupVirtualDeviceFd(
+ int device_fd,
+ const BrowserNativePixmapManager::FileDescriptorCallback& callback) {
+ int duped_fd = -1;
+ base::ThreadRestrictions::AssertIOAllowed();
+ duped_fd = HANDLE_EINTR(dup(device_fd));
+ if (duped_fd < 0) {
+ PLOG(ERROR) << "dup() failed.";
+ BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
+ base::Bind(callback, base::FileDescriptor()));
+ return;
+ }
+
+ BrowserThread::PostTask(
+ BrowserThread::IO, FROM_HERE,
+ base::Bind(callback, base::FileDescriptor(duped_fd, true)));
+}
+
+} // namespace
+
+struct BrowserNativePixmapManagerTrait
+ : public DefaultSingletonTraits<BrowserNativePixmapManager> {
+ static BrowserNativePixmapManager* New() {
+ BrowserNativePixmapManager* manager = new BrowserNativePixmapManager();
+ manager->Initialize(ui::OzonePlatform::GetInstance()->GetVirtualDeviceFd());
+ return manager;
+ }
+};
+
+// static
+BrowserNativePixmapManager* BrowserNativePixmapManager::GetInstance() {
+ return Singleton<BrowserNativePixmapManager,
+ BrowserNativePixmapManagerTrait>::get();
+}
+
+BrowserNativePixmapManager::BrowserNativePixmapManager() {}
+
+BrowserNativePixmapManager::~BrowserNativePixmapManager() {}
+
+void BrowserNativePixmapManager::Initialize(
+ const base::FileDescriptor& device_fd) {
+ pixmap_manager_ = ui::NativePixmapManager::Create(device_fd);
+ device_fd_ = device_fd;
+}
+
+std::vector<ui::NativePixmapManager::Configuration>
+BrowserNativePixmapManager::GetSupportedNativePixmapConfigurations() const {
+ return pixmap_manager_->GetSupportedNativePixmapConfigurations();
+}
+
+void BrowserNativePixmapManager::GetVirtualDeviceForChildProcess(
+ const FileDescriptorCallback& callback) {
+ DCHECK_CURRENTLY_ON(BrowserThread::IO);
+ base::SequencedWorkerPool* pool = content::BrowserThread::GetBlockingPool();
+ pool->PostWorkerTask(
+ FROM_HERE, base::Bind(&DupVirtualDeviceFd, device_fd_.fd, callback));
+}
+
+BrowserMessageFilter* BrowserNativePixmapManager::CreateMessageFilter() {
+ return new BrowserNativePixmapManagerMessageFilter(this);
+}
+
+} // namespace content
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