File indexing completed on 2024-05-12 05:31:21

 /*
     SPDX-FileCopyrightText: 2023 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "core/graphicsbuffer.h"
 #include "utils/drm_format_helper.h"
 
 #include <drm_fourcc.h>
 
 namespace KWin
 {
 
 GraphicsBuffer::GraphicsBuffer(QObject *parent)
     : QObject(parent)
 {
 }
 
 bool GraphicsBuffer::isReferenced() const
 {
     return m_refCount > 0;
 }
 
 bool GraphicsBuffer::isDropped() const
 {
     return m_dropped;
 }
 
 void GraphicsBuffer::ref()
 {
     ++m_refCount;
 }
 
 void GraphicsBuffer::unref()
 {
     Q_ASSERT(m_refCount > 0);
     --m_refCount;
     if (!m_refCount) {
         if (m_dropped) {
             delete this;
         } else {
             Q_EMIT released();
         }
     }
 }
 
 void GraphicsBuffer::drop()
 {
     m_dropped = true;
 
     if (!m_refCount) {
         delete this;
     }
 }
 
 GraphicsBuffer::Map GraphicsBuffer::map(MapFlags flags)
 {
     return {};
 }
 
 void GraphicsBuffer::unmap()
 {
 }
 
 const DmaBufAttributes *GraphicsBuffer::dmabufAttributes() const
 {
     return nullptr;
 }
 
 const ShmAttributes *GraphicsBuffer::shmAttributes() const
 {
     return nullptr;
 }
 
 bool GraphicsBuffer::alphaChannelFromDrmFormat(uint32_t format)
 {
     const auto info = FormatInfo::get(format);
     return info && info->alphaBits > 0;
 }
 
 } // namespace KWin
 
 #include "moc_graphicsbuffer.cpp"