File indexing completed on 2024-05-19 05:32:36

 /*
     SPDX-FileCopyrightText: 2018 Fredrik Höglund <fredrik@kde.org>
     SPDX-FileCopyrightText: 2019 Roman Gilg <subdiff@gmail.com>
     SPDX-FileCopyrightText: 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
     SPDX-FileCopyrightText: 2021 Xaver Hugl <xaver.hugl@gmail.com>
 
     Based on the libweston implementation,
     SPDX-FileCopyrightText: 2014, 2015 Collabora, Ltd.
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 #pragma once
 
 #include "display.h"
 #include "linuxdmabufv1clientbuffer.h"
 #include "utils/ramfile.h"
 
 #include "qwayland-server-linux-dmabuf-unstable-v1.h"
 
 #include <QDebug>
 #include <QList>
 #include <QPointer>
 
 #include <drm_fourcc.h>
 
 namespace KWin
 {
 
 class LinuxDmaBufV1FormatTable;
 
 class LinuxDmaBufV1ClientBufferIntegrationPrivate : public QtWaylandServer::zwp_linux_dmabuf_v1
 {
 public:
     LinuxDmaBufV1ClientBufferIntegrationPrivate(LinuxDmaBufV1ClientBufferIntegration *q, Display *display);
 
     LinuxDmaBufV1ClientBufferIntegration *q;
     std::unique_ptr<LinuxDmaBufV1Feedback> defaultFeedback;
     std::unique_ptr<LinuxDmaBufV1FormatTable> table;
     dev_t mainDevice;
     QPointer<RenderBackend> renderBackend;
     QHash<uint32_t, QList<uint64_t>> supportedModifiers;
 
 protected:
     void zwp_linux_dmabuf_v1_bind_resource(Resource *resource) override;
     void zwp_linux_dmabuf_v1_destroy(Resource *resource) override;
     void zwp_linux_dmabuf_v1_create_params(Resource *resource, uint32_t params_id) override;
     void zwp_linux_dmabuf_v1_get_default_feedback(Resource *resource, uint32_t id) override;
     void zwp_linux_dmabuf_v1_get_surface_feedback(Resource *resource, uint32_t id, wl_resource *surface) override;
 };
 
 class LinuxDmaBufParamsV1 : public QtWaylandServer::zwp_linux_buffer_params_v1
 {
 public:
     LinuxDmaBufParamsV1(LinuxDmaBufV1ClientBufferIntegration *integration, ::wl_resource *resource);
 
 protected:
     void zwp_linux_buffer_params_v1_destroy_resource(Resource *resource) override;
     void zwp_linux_buffer_params_v1_destroy(Resource *resource) override;
     void zwp_linux_buffer_params_v1_add(Resource *resource,
                                         int32_t fd,
                                         uint32_t plane_idx,
                                         uint32_t offset,
                                         uint32_t stride,
                                         uint32_t modifier_hi,
                                         uint32_t modifier_lo) override;
     void zwp_linux_buffer_params_v1_create(Resource *resource, int32_t width, int32_t height, uint32_t format, uint32_t flags) override;
     void
     zwp_linux_buffer_params_v1_create_immed(Resource *resource, uint32_t buffer_id, int32_t width, int32_t height, uint32_t format, uint32_t flags) override;
 
 private:
     bool test(Resource *resource, uint32_t width, uint32_t height);
 
     LinuxDmaBufV1ClientBufferIntegration *m_integration;
     DmaBufAttributes m_attrs;
     bool m_isUsed = false;
 };
 
 class LinuxDmaBufV1ClientBuffer : public GraphicsBuffer
 {
     Q_OBJECT
 
 public:
     LinuxDmaBufV1ClientBuffer(DmaBufAttributes &&attrs);
 
     QSize size() const override;
     bool hasAlphaChannel() const override;
     const DmaBufAttributes *dmabufAttributes() const override;
 
     static LinuxDmaBufV1ClientBuffer *get(wl_resource *resource);
 
 private:
     void initialize(wl_resource *resource);
 
     static void buffer_destroy_resource(wl_resource *resource);
     static void buffer_destroy(wl_client *client, wl_resource *resource);
     static const struct wl_buffer_interface implementation;
 
     wl_resource *m_resource = nullptr;
     DmaBufAttributes m_attrs;
     bool m_hasAlphaChannel = false;
 
     friend class LinuxDmaBufParamsV1;
 };
 
 class LinuxDmaBufV1FormatTable
 {
 public:
     LinuxDmaBufV1FormatTable(const QHash<uint32_t, QList<uint64_t>> &supportedModifiers);
 
     RamFile file;
     QMap<std::pair<uint32_t, uint64_t>, uint16_t> indices;
 };
 
 class LinuxDmaBufV1FeedbackPrivate : public QtWaylandServer::zwp_linux_dmabuf_feedback_v1
 {
 public:
     LinuxDmaBufV1FeedbackPrivate(LinuxDmaBufV1ClientBufferIntegrationPrivate *bufferintegration);
 
     static LinuxDmaBufV1FeedbackPrivate *get(LinuxDmaBufV1Feedback *q);
     void send(Resource *resource);
 
     QList<LinuxDmaBufV1Feedback::Tranche> m_tranches;
     LinuxDmaBufV1ClientBufferIntegrationPrivate *m_bufferintegration;
 
 protected:
     void zwp_linux_dmabuf_feedback_v1_bind_resource(Resource *resource) override;
     void zwp_linux_dmabuf_feedback_v1_destroy(Resource *resource) override;
 };
 }