WIP HW

content/browser/compositor/mus_browser_compositor_output_surface.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2016 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/compositor/gpu_browser_compositor_output_surface.h"
+#include "content/browser/compositor/mus_browser_compositor_output_surface.h"
 
 #include <utility>
 
 #include "build/build_config.h"
 #include "cc/output/compositor_frame.h"
+#include "cc/output/compositor_frame_ack.h"
 #include "cc/output/output_surface_client.h"
 #include "components/display_compositor/compositor_overlay_candidate_validator.h"
+#include "components/mus/common/gpu_service.h"
+#include "components/mus/public/cpp/surfaces/surfaces_type_converters.h"
+#include "components/mus/public/cpp/window.h"
+#include "components/mus/public/cpp/window_surface.h"
 #include "content/browser/compositor/reflector_impl.h"
 #include "content/browser/compositor/reflector_texture.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 #include "gpu/command_buffer/client/context_support.h"
 #include "gpu/ipc/client/command_buffer_proxy_impl.h"
+#include "ui/views/mus/native_widget_mus.h"
+#include "ui/views/mus/window_tree_host_mus.h"
 
 namespace content {
 
-GpuBrowserCompositorOutputSurface::GpuBrowserCompositorOutputSurface(
+MusBrowserCompositorOutputSurface::MusBrowserCompositorOutputSurface(
+    gpu::SurfaceHandle surface_handle,
     scoped_refptr<ContextProviderCommandBuffer> context,
     scoped_refptr<ui::CompositorVSyncManager> vsync_manager,
     cc::SyntheticBeginFrameSource* begin_frame_source,
     std::unique_ptr<display_compositor::CompositorOverlayCandidateValidator>
         overlay_candidate_validator)
     : BrowserCompositorOutputSurface(std::move(context),
                                      std::move(vsync_manager),
                                      begin_frame_source,
                                      std::move(overlay_candidate_validator)),
       swap_buffers_completion_callback_(base::Bind(
-          &GpuBrowserCompositorOutputSurface::OnGpuSwapBuffersCompleted,
+          &MusBrowserCompositorOutputSurface::OnGpuSwapBuffersCompleted,
           base::Unretained(this))),
       update_vsync_parameters_callback_(base::Bind(
           &BrowserCompositorOutputSurface::OnUpdateVSyncParametersFromGpu,
-          base::Unretained(this))) {}
+          base::Unretained(this))) {
+  capabilities_.delegated_rendering = true;
+  views::WindowTreeHostMus* window_tree_host =
+      static_cast<views::WindowTreeHostMus*>(
+          aura::WindowTreeHost::GetForAcceleratedWidget(surface_handle));
+  mus::Window* window = window_tree_host->native_widget()->window();
+  mus_window_surface_ =
+      window->RequestSurface(mus::mojom::SurfaceType::DEFAULT);
+}
 
-GpuBrowserCompositorOutputSurface::~GpuBrowserCompositorOutputSurface() {}
+MusBrowserCompositorOutputSurface::~MusBrowserCompositorOutputSurface() {}
 
 gpu::CommandBufferProxyImpl*
-GpuBrowserCompositorOutputSurface::GetCommandBufferProxy() {
+MusBrowserCompositorOutputSurface::GetCommandBufferProxy() {
   ContextProviderCommandBuffer* provider_command_buffer =
       static_cast<content::ContextProviderCommandBuffer*>(
           context_provider_.get());
   gpu::CommandBufferProxyImpl* command_buffer_proxy =
       provider_command_buffer->GetCommandBufferProxy();
   DCHECK(command_buffer_proxy);
   return command_buffer_proxy;
 }
 
-bool GpuBrowserCompositorOutputSurface::BindToClient(
+void MusBrowserCompositorOutputSurface::OnResourcesReturned(
+    mus::WindowSurface* surface,
+    mojo::Array<cc::ReturnedResource> resources) {
+  cc::CompositorFrameAck cfa;
+  cfa.resources = resources.To<cc::ReturnedResourceArray>();
+  ReclaimResources(&cfa);
+}
+
+bool MusBrowserCompositorOutputSurface::BindToClient(
     cc::OutputSurfaceClient* client) {
+  mus_window_surface_->BindToThread();
+  mus_window_surface_->set_client(this);
+
   if (!BrowserCompositorOutputSurface::BindToClient(client))
     return false;
 
   GetCommandBufferProxy()->SetSwapBuffersCompletionCallback(
       swap_buffers_completion_callback_.callback());
   GetCommandBufferProxy()->SetUpdateVSyncParametersCallback(
       update_vsync_parameters_callback_.callback());
   if (capabilities_.uses_default_gl_framebuffer) {
     capabilities_.flipped_output_surface =
         context_provider()->ContextCapabilities().flips_vertically;
   }
   return true;
 }
 
-void GpuBrowserCompositorOutputSurface::OnReflectorChanged() {
+void MusBrowserCompositorOutputSurface::OnReflectorChanged() {
   if (!reflector_) {
     reflector_texture_.reset();
   } else {
     reflector_texture_.reset(new ReflectorTexture(context_provider()));
     reflector_->OnSourceTextureMailboxUpdated(reflector_texture_->mailbox());
   }
 }
 
-void GpuBrowserCompositorOutputSurface::SwapBuffers(
+void MusBrowserCompositorOutputSurface::SwapBuffers(
     cc::CompositorFrame* frame) {
-  DCHECK(frame->gl_frame_data);
-
+  DCHECK(frame->delegated_frame_data);
   GetCommandBufferProxy()->SetLatencyInfo(frame->metadata.latency_info);
 
-  if (reflector_) {
-    if (frame->gl_frame_data->sub_buffer_rect ==
-        gfx::Rect(frame->gl_frame_data->size)) {
-      reflector_texture_->CopyTextureFullImage(SurfaceSize());
-      reflector_->OnSourceSwapBuffers();
-    } else {
-      const gfx::Rect& rect = frame->gl_frame_data->sub_buffer_rect;
-      reflector_texture_->CopyTextureSubImage(rect);
-      reflector_->OnSourcePostSubBuffer(rect);
-    }
-  }
+  // TODO(fsamuel, rjkroege): We should probably throttle compositor frames.
+  client_->DidSwapBuffers();
 
-  if (frame->gl_frame_data->sub_buffer_rect ==
-      gfx::Rect(frame->gl_frame_data->size)) {
-    context_provider_->ContextSupport()->Swap();
-  } else {
-    context_provider_->ContextSupport()->PartialSwapBuffers(
-        frame->gl_frame_data->sub_buffer_rect);
-  }
+  mus_window_surface_->SubmitCompositorFrame(
+      cc::mojom::CompositorFrame::From(*frame),
+      base::Bind(&MusBrowserCompositorOutputSurface::OnSwapBuffersComplete,
+                 base::Unretained(this)));
 
-  client_->DidSwapBuffers();
+  // TODO(penghuang): figure how to handle reflector.
+  return;
 }
 
-void GpuBrowserCompositorOutputSurface::OnGpuSwapBuffersCompleted(
+void MusBrowserCompositorOutputSurface::OnGpuSwapBuffersCompleted(
     const std::vector<ui::LatencyInfo>& latency_info,
     gfx::SwapResult result,
     const gpu::GpuProcessHostedCALayerTreeParamsMac* params_mac) {
   RenderWidgetHostImpl::CompositorFrameDrawn(latency_info);
   OnSwapBuffersComplete();
 }
 
 #if defined(OS_MACOSX)
-void GpuBrowserCompositorOutputSurface::SetSurfaceSuspendedForRecycle(
+void MusBrowserCompositorOutputSurface::SetSurfaceSuspendedForRecycle(
     bool suspended) {}
 #endif
 
 }  // namespace content