WIP: Surface Synchronization System

services/ui/ws/frame_generator.cc

 // 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 "services/ui/ws/frame_generator.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/containers/adapters.h"
@@ skipping 125 matching lines @@
                  gfx::Size() /* mask_texture_size */,
                  gfx::Vector2dF() /* filters_scale */,
                  gfx::PointF() /* filters_origin */);
     frame.render_pass_list.push_back(std::move(invert_pass));
   }
   frame.metadata.device_scale_factor = device_scale_factor_;
 
   if (window_manager_surface_info_.id().is_valid()) {
     frame.metadata.referenced_surfaces.push_back(
         window_manager_surface_info_.id());
+    // We have nothing useful to do UNTIL the window manager has something to
+    // show.
+    frame.metadata.respect_deadline = false;
   }
 
   return frame;
 }
 
 void FrameGenerator::DrawWindow(cc::RenderPass* pass) {
   DCHECK(window_manager_surface_info_.id().is_valid());
 
   const gfx::Rect bounds_at_origin(
       window_manager_surface_info_.size_in_pixels());
 
+  // fprintf(stderr, ">>>>DrawWindow %s\n",
+  // default_surface_id.ToString().c_str());
   gfx::Transform quad_to_target_transform;
   quad_to_target_transform.Translate(bounds_at_origin.x(),
                                      bounds_at_origin.y());
 
   cc::SharedQuadState* sqs = pass->CreateAndAppendSharedQuadState();
 
   gfx::Size scaled_bounds = gfx::ScaleToCeiledSize(
       bounds_at_origin.size(),
       window_manager_surface_info_.device_scale_factor(),
       window_manager_surface_info_.device_scale_factor());
 
   // TODO(fsamuel): These clipping and visible rects are incorrect. They need
   // to be populated from CompositorFrame structs.
   sqs->SetAll(quad_to_target_transform, scaled_bounds /* layer_bounds */,
               bounds_at_origin /* visible_layer_bounds */,
               bounds_at_origin /* clip_rect */, false /* is_clipped */,
               1.0f /* opacity */, SkBlendMode::kSrcOver,
               0 /* sorting-context_id */);
   auto* quad = pass->CreateAndAppendDrawQuad<cc::SurfaceDrawQuad>();
   quad->SetAll(sqs, bounds_at_origin /* rect */, gfx::Rect() /* opaque_rect */,
                bounds_at_origin /* visible_rect */, true /* needs_blending*/,
-               window_manager_surface_info_.id());
+               window_manager_surface_info_.id(),
+               cc::SurfaceDrawQuadType::PRIMARY, nullptr);
 }
 
 }  // namespace ws
 
 }  // namespace ui