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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/compositor/software_output_device_win.h" | 5 #include "content/browser/compositor/software_output_device_win.h" |
6 | 6 |
7 #include "base/debug/alias.h" | 7 #include "base/debug/alias.h" |
8 #include "base/memory/shared_memory.h" | 8 #include "base/memory/shared_memory.h" |
9 #include "cc/resources/shared_bitmap.h" | 9 #include "cc/resources/shared_bitmap.h" |
10 #include "content/public/browser/browser_thread.h" | 10 #include "content/public/browser/browser_thread.h" |
11 #include "skia/ext/platform_canvas.h" | 11 #include "skia/ext/platform_canvas.h" |
12 #include "skia/ext/skia_utils_win.h" | 12 #include "skia/ext/skia_utils_win.h" |
| 13 #include "ui/base/win/internal_constants.h" |
13 #include "ui/compositor/compositor.h" | 14 #include "ui/compositor/compositor.h" |
14 #include "ui/gfx/gdi_util.h" | 15 #include "ui/gfx/gdi_util.h" |
15 #include "ui/gfx/skia_util.h" | 16 #include "ui/gfx/skia_util.h" |
16 | 17 |
17 namespace content { | 18 namespace content { |
18 | 19 |
19 // If a window is larger than this in bytes, don't even try to create a | 20 // If a window is larger than this in bytes, don't even try to create a |
20 // backing bitmap for it. | 21 // backing bitmap for it. |
21 static const size_t kMaxBitmapSizeBytes = 4 * (16384 * 8192); | 22 static const size_t kMaxBitmapSizeBytes = 4 * (16384 * 8192); |
22 | 23 |
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86 } | 87 } |
87 | 88 |
88 SoftwareOutputDeviceWin::SoftwareOutputDeviceWin(OutputDeviceBacking* backing, | 89 SoftwareOutputDeviceWin::SoftwareOutputDeviceWin(OutputDeviceBacking* backing, |
89 ui::Compositor* compositor) | 90 ui::Compositor* compositor) |
90 : hwnd_(compositor->widget()), | 91 : hwnd_(compositor->widget()), |
91 is_hwnd_composited_(false), | 92 is_hwnd_composited_(false), |
92 backing_(backing), | 93 backing_(backing), |
93 in_paint_(false) { | 94 in_paint_(false) { |
94 DCHECK_CURRENTLY_ON(BrowserThread::UI); | 95 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
95 | 96 |
96 LONG style = GetWindowLong(hwnd_, GWL_EXSTYLE); | 97 is_hwnd_composited_ = !!::GetProp(hwnd_, ui::kWindowTranslucent); |
97 is_hwnd_composited_ = !!(style & WS_EX_COMPOSITED); | |
98 // Layered windows must be completely updated every time, so they can't | 98 // Layered windows must be completely updated every time, so they can't |
99 // share contents with other windows. | 99 // share contents with other windows. |
100 if (is_hwnd_composited_) | 100 if (is_hwnd_composited_) |
101 backing_ = nullptr; | 101 backing_ = nullptr; |
102 if (backing_) | 102 if (backing_) |
103 backing_->RegisterOutputDevice(this); | 103 backing_->RegisterOutputDevice(this); |
104 } | 104 } |
105 | 105 |
106 SoftwareOutputDeviceWin::~SoftwareOutputDeviceWin() { | 106 SoftwareOutputDeviceWin::~SoftwareOutputDeviceWin() { |
107 DCHECK_CURRENTLY_ON(BrowserThread::UI); | 107 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
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170 | 170 |
171 if (is_hwnd_composited_) { | 171 if (is_hwnd_composited_) { |
172 RECT wr; | 172 RECT wr; |
173 GetWindowRect(hwnd_, &wr); | 173 GetWindowRect(hwnd_, &wr); |
174 SIZE size = {wr.right - wr.left, wr.bottom - wr.top}; | 174 SIZE size = {wr.right - wr.left, wr.bottom - wr.top}; |
175 POINT position = {wr.left, wr.top}; | 175 POINT position = {wr.left, wr.top}; |
176 POINT zero = {0, 0}; | 176 POINT zero = {0, 0}; |
177 BLENDFUNCTION blend = {AC_SRC_OVER, 0x00, 0xFF, AC_SRC_ALPHA}; | 177 BLENDFUNCTION blend = {AC_SRC_OVER, 0x00, 0xFF, AC_SRC_ALPHA}; |
178 | 178 |
179 DWORD style = GetWindowLong(hwnd_, GWL_EXSTYLE); | 179 DWORD style = GetWindowLong(hwnd_, GWL_EXSTYLE); |
180 style &= ~WS_EX_COMPOSITED; | 180 DCHECK(!(style & WS_EX_COMPOSITED)); |
181 style |= WS_EX_LAYERED; | 181 style |= WS_EX_LAYERED; |
182 SetWindowLong(hwnd_, GWL_EXSTYLE, style); | 182 SetWindowLong(hwnd_, GWL_EXSTYLE, style); |
183 | 183 |
184 ::UpdateLayeredWindow(hwnd_, NULL, &position, &size, dib_dc, &zero, | 184 ::UpdateLayeredWindow(hwnd_, NULL, &position, &size, dib_dc, &zero, |
185 RGB(0xFF, 0xFF, 0xFF), &blend, ULW_ALPHA); | 185 RGB(0xFF, 0xFF, 0xFF), &blend, ULW_ALPHA); |
186 } else { | 186 } else { |
187 HDC hdc = ::GetDC(hwnd_); | 187 HDC hdc = ::GetDC(hwnd_); |
188 RECT src_rect = rect.ToRECT(); | 188 RECT src_rect = rect.ToRECT(); |
189 skia::CopyHDC(dib_dc, | 189 skia::CopyHDC(dib_dc, |
190 hdc, | 190 hdc, |
191 rect.x(), | 191 rect.x(), |
192 rect.y(), | 192 rect.y(), |
193 contents_.get()->imageInfo().isOpaque(), | 193 contents_.get()->imageInfo().isOpaque(), |
194 src_rect, | 194 src_rect, |
195 contents_.get()->getTotalMatrix()); | 195 contents_.get()->getTotalMatrix()); |
196 | 196 |
197 ::ReleaseDC(hwnd_, hdc); | 197 ::ReleaseDC(hwnd_, hdc); |
198 } | 198 } |
199 } | 199 } |
200 | 200 |
201 void SoftwareOutputDeviceWin::ReleaseContents() { | 201 void SoftwareOutputDeviceWin::ReleaseContents() { |
202 DCHECK(!in_paint_); | 202 DCHECK(!in_paint_); |
203 contents_.reset(); | 203 contents_.reset(); |
204 } | 204 } |
205 | 205 |
206 } // namespace content | 206 } // namespace content |
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