1fb9f6f13a
The main advantage of SPDX license identifiers over the traditional license headers is that it's more difficult to overlook inappropriate licenses for kwin, for example GPL 3. We also don't have to copy a lot of boilerplate text. In order to create this change, I ran licensedigger -r -c from the toplevel source directory.
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2017 Roman Gilg <subdiff@gmail.com>
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SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*********************************************************************/
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#include "drm_buffer_gbm.h"
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#include "gbm_surface.h"
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#include "logging.h"
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// system
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#include <sys/mman.h>
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// c++
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#include <cerrno>
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// drm
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <gbm.h>
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namespace KWin
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{
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// DrmSurfaceBuffer
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DrmSurfaceBuffer::DrmSurfaceBuffer(int fd, const std::shared_ptr<GbmSurface> &surface)
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: DrmBuffer(fd)
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, m_surface(surface)
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{
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m_bo = m_surface->lockFrontBuffer();
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if (!m_bo) {
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qCWarning(KWIN_DRM) << "Locking front buffer failed";
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return;
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}
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m_size = QSize(gbm_bo_get_width(m_bo), gbm_bo_get_height(m_bo));
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if (drmModeAddFB(fd, m_size.width(), m_size.height(), 24, 32, gbm_bo_get_stride(m_bo), gbm_bo_get_handle(m_bo).u32, &m_bufferId) != 0) {
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qCWarning(KWIN_DRM) << "drmModeAddFB failed";
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}
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gbm_bo_set_user_data(m_bo, this, nullptr);
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}
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DrmSurfaceBuffer::~DrmSurfaceBuffer()
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{
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if (m_bufferId) {
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drmModeRmFB(fd(), m_bufferId);
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}
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releaseGbm();
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}
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void DrmSurfaceBuffer::releaseGbm()
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{
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m_surface->releaseBuffer(m_bo);
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m_bo = nullptr;
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}
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}
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