p1 mus+ash chrome renders ui and content

content/browser/compositor/software_output_device_mus.cc

+// 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/compositor/software_output_device_mus.h"
+
+#include "components/bitmap_uploader/bitmap_uploader.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "third_party/skia/include/core/SkDevice.h"
+#include "ui/base/view_prop.h"
+#include "ui/compositor/compositor.h"
+#include "ui/gfx/skia_util.h"
+
+#if !defined(OFFICIAL_BUILD)
+#include "base/threading/thread_restrictions.h"
+#endif
+
+namespace content {
+
+SoftwareOutputDeviceMus::SoftwareOutputDeviceMus(ui::Compositor* compositor)
+    : compositor_(compositor) {}
+
+void SoftwareOutputDeviceMus::EndPaint() {
+  SoftwareOutputDevice::EndPaint();
+#if !defined(OFFICIAL_BUILD)
+  base::ThreadRestrictions::ScopedAllowWait wait;
+#endif
+
+  if (!surface_)
+    return;
+
+  gfx::Rect rect = damage_rect_;
+  rect.Intersect(gfx::Rect(viewport_pixel_size_));
+  if (rect.IsEmpty())
+    return;
+
+  gfx::AcceleratedWidget widget = compositor_->widget();
+  bitmap_uploader::BitmapUploader* uploader =
+      reinterpret_cast<bitmap_uploader::BitmapUploader*>(ui::ViewProp::GetValue(
+          widget, bitmap_uploader::kBitmapUploaderForAcceleratedWidget));
+  DCHECK(uploader);
+
+  SkImageInfo info;
+  size_t rowBytes;
+  const void* addr = surface_->peekPixels(&info, &rowBytes);
+
+  if (!addr) {
+    LOG(WARNING) << "SoftwareOutputDeviceMus: skia surface did not provide us "
+                    "with pixels";
+    return;
+  }
+
+  const unsigned char* pixels = static_cast<const unsigned char*>(addr);
+
+  // TODO(rjkroege): This makes an additional copy. Improve the
+  // bitmap_uploader API to remove.
+  scoped_ptr<std::vector<unsigned char>> data(new std::vector<unsigned char>(
+      pixels, pixels + rowBytes * viewport_pixel_size_.height()));
+  uploader->SetBitmap(viewport_pixel_size_.width(),
+                      viewport_pixel_size_.height(), data.Pass(),
+                      bitmap_uploader::BitmapUploader::BGRA);
+}
+
+}  // namespace content