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// 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 <stddef.h>
#include <utility>
#include "components/bitmap_uploader/bitmap_uploader.h"
#include "third_party/skia/include/core/SkImageInfo.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(), std::move(data),
bitmap_uploader::BitmapUploader::BGRA);
}
} // namespace content
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