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| 1 // Copyright (c) 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 "content/browser/renderer_host/software_output_device.h" |
| 6 |
| 7 #include <X11/Xlib.h> |
| 8 #include <X11/Xutil.h> |
| 9 |
| 10 #include "third_party/skia/include/core/SkBitmap.h" |
| 11 #include "third_party/skia/include/core/SkDevice.h" |
| 12 #include "ui/compositor/compositor.h" |
| 13 |
| 14 namespace content { |
| 15 |
| 16 SoftwareOutputDevice::SoftwareOutputDevice(ui::Compositor* compositor) |
| 17 : compositor_(compositor), |
| 18 display_(ui::GetXDisplay()), |
| 19 gc_(NULL), |
| 20 image_(NULL) { |
| 21 gc_ = XCreateGC(display_, compositor_->widget(), 0, NULL); |
| 22 } |
| 23 |
| 24 SoftwareOutputDevice::~SoftwareOutputDevice() { |
| 25 XFreeGC(display_, gc_); |
| 26 ClearImage(); |
| 27 } |
| 28 |
| 29 void SoftwareOutputDevice::ClearImage() { |
| 30 if (image_) { |
| 31 // XDestroyImage deletes the data referenced by the image which |
| 32 // is actually owned by the device_. So we have to reset data here. |
| 33 image_->data = NULL; |
| 34 XDestroyImage(image_); |
| 35 image_ = NULL; |
| 36 } |
| 37 } |
| 38 |
| 39 void SoftwareOutputDevice::Resize(const gfx::Size& viewport_size) { |
| 40 cc::SoftwareOutputDevice::Resize(viewport_size); |
| 41 |
| 42 ClearImage(); |
| 43 if (!device_) |
| 44 return; |
| 45 |
| 46 const SkBitmap& bitmap = device_->accessBitmap(false); |
| 47 image_ = XCreateImage(display_, CopyFromParent, |
| 48 DefaultDepth(display_, DefaultScreen(display_)), |
| 49 ZPixmap, 0, |
| 50 static_cast<char*>(bitmap.getPixels()), |
| 51 viewport_size_.width(), viewport_size_.height(), |
| 52 32, 4 * viewport_size_.width()); |
| 53 } |
| 54 |
| 55 void SoftwareOutputDevice::EndPaint(cc::SoftwareFrameData* frame_data) { |
| 56 DCHECK(device_); |
| 57 DCHECK(frame_data == NULL); |
| 58 |
| 59 if (!device_) |
| 60 return; |
| 61 |
| 62 gfx::Rect rect = damage_rect_; |
| 63 rect.Intersect(gfx::Rect(viewport_size_)); |
| 64 if (rect.IsEmpty()) |
| 65 return; |
| 66 |
| 67 // TODO(skaslev): Maybe switch XShmPutImage since it's async. |
| 68 XPutImage(display_, compositor_->widget(), gc_, image_, |
| 69 rect.x(), rect.y(), |
| 70 rect.x(), rect.y(), |
| 71 rect.width(), rect.height()); |
| 72 } |
| 73 |
| 74 } // namespace content |
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