44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/*
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* Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/desktop_capture/linux/x_window_property.h"
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namespace webrtc {
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XWindowPropertyBase::XWindowPropertyBase(Display* display,
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Window window,
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Atom property,
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int expected_size) {
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const int kBitsPerByte = 8;
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Atom actual_type;
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int actual_format;
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unsigned long bytes_after; // NOLINT: type required by XGetWindowProperty
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int status = XGetWindowProperty(display, window, property, 0L, ~0L, False,
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AnyPropertyType, &actual_type, &actual_format,
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&size_, &bytes_after, &data_);
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if (status != Success) {
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data_ = nullptr;
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return;
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}
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if ((expected_size * kBitsPerByte) != actual_format) {
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size_ = 0;
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return;
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}
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is_valid_ = true;
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}
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XWindowPropertyBase::~XWindowPropertyBase() {
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if (data_)
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XFree(data_);
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}
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} // namespace webrtc
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