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68 lines
2.0 KiB
68 lines
2.0 KiB
/******************************************************************** |
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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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Copyright 2017 Roman Gilg <subdiff@gmail.com> |
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Copyright 2015 Martin Gräßlin <mgraesslin@kde.org> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*********************************************************************/ |
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#include "drm_backend.h" |
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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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#include <errno.h> |
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// drm |
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#include <xf86drm.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(DrmBackend *backend, const std::shared_ptr<GbmSurface> &surface) |
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: DrmBuffer(backend) |
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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(m_backend->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(m_backend->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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