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Unified Diff: mojo/examples/aura_demo/context_factory_view_manager.cc

Issue 313483002: Gets aura_demo working with the view_manager (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: merge 2 master and fix windows Created 6 years, 7 months ago
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Index: mojo/examples/aura_demo/context_factory_view_manager.cc
diff --git a/mojo/examples/aura_demo/context_factory_view_manager.cc b/mojo/examples/aura_demo/context_factory_view_manager.cc
new file mode 100644
index 0000000000000000000000000000000000000000..46596c333450f0658392a5b407526524c6b592d8
--- /dev/null
+++ b/mojo/examples/aura_demo/context_factory_view_manager.cc
@@ -0,0 +1,194 @@
+// Copyright 2014 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 "mojo/examples/aura_demo/context_factory_view_manager.h"
+
+#include "base/bind.h"
+#include "cc/output/output_surface.h"
+#include "cc/output/software_output_device.h"
+#include "cc/resources/shared_bitmap_manager.h"
+#include "mojo/services/public/interfaces/view_manager/view_manager.mojom.h"
+#include "skia/ext/platform_canvas.h"
+#include "ui/compositor/reflector.h"
+#include "ui/gfx/codec/png_codec.h"
+
+namespace mojo {
+namespace examples {
+namespace {
+
+void FreeSharedBitmap(cc::SharedBitmap* shared_bitmap) {
+ delete shared_bitmap->memory();
+}
+
+void IgnoreSharedBitmap(cc::SharedBitmap* shared_bitmap) {}
+
+bool CreateMapAndDupSharedBuffer(size_t size,
+ void** memory,
+ ScopedSharedBufferHandle* handle,
+ ScopedSharedBufferHandle* duped) {
+ MojoResult result = CreateSharedBuffer(NULL, size, handle);
+ if (result != MOJO_RESULT_OK)
+ return false;
+ DCHECK(handle->is_valid());
+
+ result = DuplicateBuffer(handle->get(), NULL, duped);
+ if (result != MOJO_RESULT_OK)
+ return false;
+ DCHECK(duped->is_valid());
+
+ result = MapBuffer(
+ handle->get(), 0, size, memory, MOJO_MAP_BUFFER_FLAG_NONE);
+ if (result != MOJO_RESULT_OK)
+ return false;
+ DCHECK(*memory);
+
+ return true;
+}
+
+class SoftwareOutputDeviceViewManager : public cc::SoftwareOutputDevice {
+ public:
+ explicit SoftwareOutputDeviceViewManager(
+ view_manager::IViewManager* view_manager,
+ uint32_t view_id)
+ : view_manager_(view_manager),
+ view_id_(view_id) {
+ }
+ virtual ~SoftwareOutputDeviceViewManager() {}
+
+ // cc::SoftwareOutputDevice:
+ virtual void EndPaint(cc::SoftwareFrameData* frame_data) OVERRIDE {
+ SetViewContents();
+
+ SoftwareOutputDevice::EndPaint(frame_data);
+ }
+
+ private:
+ void OnSetViewContentsDone(bool value) {
+ VLOG(1) << "SoftwareOutputDeviceManager::OnSetViewContentsDone " << value;
+ DCHECK(value);
+ }
+
+ void SetViewContents() {
+ std::vector<unsigned char> data;
+ gfx::PNGCodec::EncodeBGRASkBitmap(
+ skia::GetTopDevice(*canvas_)->accessBitmap(true), false, &data);
+
+ void* memory = NULL;
+ ScopedSharedBufferHandle duped;
+ bool result = CreateMapAndDupSharedBuffer(data.size(),
+ &memory,
+ &shared_state_handle_,
+ &duped);
+ if (!result)
+ return;
+
+ memcpy(memory, &data[0], data.size());
+
+ view_manager_->SetViewContents(
+ view_id_, duped.Pass(), static_cast<uint32_t>(data.size()),
+ base::Bind(&SoftwareOutputDeviceViewManager::OnSetViewContentsDone,
+ base::Unretained(this)));
+ }
+
+ view_manager::IViewManager* view_manager_;
+ const uint32_t view_id_;
+ ScopedSharedBufferHandle shared_state_handle_;
+
+ DISALLOW_COPY_AND_ASSIGN(SoftwareOutputDeviceViewManager);
+};
+
+// TODO(sky): this is a copy from cc/test. Copy to a common place.
+class TestSharedBitmapManager : public cc::SharedBitmapManager {
+ public:
+ TestSharedBitmapManager() {}
+ virtual ~TestSharedBitmapManager() {}
+
+ virtual scoped_ptr<cc::SharedBitmap> AllocateSharedBitmap(
+ const gfx::Size& size) OVERRIDE {
+ base::AutoLock lock(lock_);
+ scoped_ptr<base::SharedMemory> memory(new base::SharedMemory);
+ memory->CreateAndMapAnonymous(size.GetArea() * 4);
+ cc::SharedBitmapId id = cc::SharedBitmap::GenerateId();
+ bitmap_map_[id] = memory.get();
+ return scoped_ptr<cc::SharedBitmap>(
+ new cc::SharedBitmap(memory.release(), id,
+ base::Bind(&FreeSharedBitmap)));
+ }
+
+ virtual scoped_ptr<cc::SharedBitmap> GetSharedBitmapFromId(
+ const gfx::Size&,
+ const cc::SharedBitmapId& id) OVERRIDE {
+ base::AutoLock lock(lock_);
+ if (bitmap_map_.find(id) == bitmap_map_.end())
+ return scoped_ptr<cc::SharedBitmap>();
+ return scoped_ptr<cc::SharedBitmap>(
+ new cc::SharedBitmap(bitmap_map_[id], id,
+ base::Bind(&IgnoreSharedBitmap)));
+ }
+
+ virtual scoped_ptr<cc::SharedBitmap> GetBitmapForSharedMemory(
+ base::SharedMemory* memory) OVERRIDE {
+ base::AutoLock lock(lock_);
+ cc::SharedBitmapId id = cc::SharedBitmap::GenerateId();
+ bitmap_map_[id] = memory;
+ return scoped_ptr<cc::SharedBitmap>(
+ new cc::SharedBitmap(memory, id, base::Bind(&IgnoreSharedBitmap)));
+ }
+
+ private:
+ base::Lock lock_;
+ std::map<cc::SharedBitmapId, base::SharedMemory*> bitmap_map_;
+
+ DISALLOW_COPY_AND_ASSIGN(TestSharedBitmapManager);
+};
+
+} // namespace
+
+ContextFactoryViewManager::ContextFactoryViewManager(
+ view_manager::IViewManager* view_manager,
+ uint32_t view_id)
+ : view_manager_(view_manager),
+ view_id_(view_id),
+ shared_bitmap_manager_(new TestSharedBitmapManager()) {
+}
+
+ContextFactoryViewManager::~ContextFactoryViewManager() {}
+
+scoped_ptr<cc::OutputSurface> ContextFactoryViewManager::CreateOutputSurface(
+ ui::Compositor* compositor,
+ bool software_fallback) {
+ scoped_ptr<cc::SoftwareOutputDevice> output_device(
+ new SoftwareOutputDeviceViewManager(view_manager_, view_id_));
+ return make_scoped_ptr(new cc::OutputSurface(output_device.Pass()));
+}
+
+scoped_refptr<ui::Reflector> ContextFactoryViewManager::CreateReflector(
+ ui::Compositor* mirroed_compositor,
+ ui::Layer* mirroring_layer) {
+ return new ui::Reflector();
+}
+
+void ContextFactoryViewManager::RemoveReflector(
+ scoped_refptr<ui::Reflector> reflector) {
+}
+
+scoped_refptr<cc::ContextProvider>
+ContextFactoryViewManager::SharedMainThreadContextProvider() {
+ return scoped_refptr<cc::ContextProvider>(NULL);
+}
+
+void ContextFactoryViewManager::RemoveCompositor(ui::Compositor* compositor) {}
+
+bool ContextFactoryViewManager::DoesCreateTestContexts() { return false; }
+
+cc::SharedBitmapManager* ContextFactoryViewManager::GetSharedBitmapManager() {
+ return shared_bitmap_manager_.get();
+}
+
+base::MessageLoopProxy* ContextFactoryViewManager::GetCompositorMessageLoop() {
+ return NULL;
+}
+
+} // namespace examples
+} // namespace mojo
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