Home | History | Annotate | Download | only in output
      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "cc/output/software_output_device.h"
      6 
      7 #include "base/logging.h"
      8 #include "cc/output/software_frame_data.h"
      9 #include "third_party/skia/include/core/SkBitmapDevice.h"
     10 #include "third_party/skia/include/core/SkCanvas.h"
     11 #include "ui/gfx/skia_util.h"
     12 #include "ui/gfx/vsync_provider.h"
     13 
     14 namespace cc {
     15 
     16 SoftwareOutputDevice::SoftwareOutputDevice() {}
     17 
     18 SoftwareOutputDevice::~SoftwareOutputDevice() {}
     19 
     20 void SoftwareOutputDevice::Resize(gfx::Size viewport_size) {
     21   if (viewport_size_ == viewport_size)
     22     return;
     23 
     24   viewport_size_ = viewport_size;
     25   device_ = skia::AdoptRef(new SkBitmapDevice(SkBitmap::kARGB_8888_Config,
     26       viewport_size.width(), viewport_size.height(), true));
     27   canvas_ = skia::AdoptRef(new SkCanvas(device_.get()));
     28 }
     29 
     30 SkCanvas* SoftwareOutputDevice::BeginPaint(gfx::Rect damage_rect) {
     31   DCHECK(device_);
     32   damage_rect_ = damage_rect;
     33   return canvas_.get();
     34 }
     35 
     36 void SoftwareOutputDevice::EndPaint(SoftwareFrameData* frame_data) {
     37   DCHECK(frame_data);
     38   frame_data->id = 0;
     39   frame_data->size = viewport_size_;
     40   frame_data->damage_rect = damage_rect_;
     41   frame_data->handle = base::SharedMemory::NULLHandle();
     42 }
     43 
     44 void SoftwareOutputDevice::CopyToBitmap(
     45     gfx::Rect rect, SkBitmap* output) {
     46   DCHECK(device_);
     47   const SkBitmap& bitmap = device_->accessBitmap(false);
     48   bitmap.extractSubset(output, gfx::RectToSkIRect(rect));
     49 }
     50 
     51 void SoftwareOutputDevice::Scroll(
     52     gfx::Vector2d delta, gfx::Rect clip_rect) {
     53   NOTIMPLEMENTED();
     54 }
     55 
     56 void SoftwareOutputDevice::ReclaimSoftwareFrame(unsigned id) {
     57   NOTIMPLEMENTED();
     58 }
     59 
     60 gfx::VSyncProvider* SoftwareOutputDevice::GetVSyncProvider() {
     61   return vsync_provider_.get();
     62 }
     63 
     64 }  // namespace cc
     65