| 1 | // Copyright (C) 2017 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include "qwlbuffermanager_p.h" |
| 5 | #include <QWaylandCompositor> |
| 6 | #include <QtWaylandCompositor/private/qwaylandcompositor_p.h> |
| 7 | #include <QtWaylandCompositor/private/qwlclientbufferintegration_p.h> |
| 8 | #include <QDebug> |
| 9 | |
| 10 | QT_BEGIN_NAMESPACE |
| 11 | |
| 12 | namespace QtWayland { |
| 13 | |
| 14 | BufferManager::BufferManager(QWaylandCompositor *compositor) |
| 15 | : QObject(compositor) |
| 16 | , m_compositor(compositor) |
| 17 | { |
| 18 | |
| 19 | } |
| 20 | |
| 21 | struct buffer_manager_destroy_listener : wl_listener |
| 22 | { |
| 23 | buffer_manager_destroy_listener() |
| 24 | { |
| 25 | notify = BufferManager::destroy_listener_callback; |
| 26 | wl_list_init(list: &this->link); |
| 27 | } |
| 28 | |
| 29 | BufferManager *d = nullptr; |
| 30 | }; |
| 31 | |
| 32 | void BufferManager::registerBuffer(wl_resource *buffer_resource, ClientBuffer *clientBuffer) |
| 33 | { |
| 34 | m_buffers[buffer_resource] = clientBuffer; |
| 35 | |
| 36 | auto *destroy_listener = new buffer_manager_destroy_listener; |
| 37 | destroy_listener->d = this; |
| 38 | wl_resource_add_destroy_listener(resource: buffer_resource, listener: destroy_listener); |
| 39 | |
| 40 | } |
| 41 | |
| 42 | ClientBuffer *BufferManager::getBuffer(wl_resource *buffer_resource) |
| 43 | { |
| 44 | if (!buffer_resource) |
| 45 | return nullptr; |
| 46 | |
| 47 | auto it = m_buffers.find(key: buffer_resource); |
| 48 | if (it != m_buffers.end()) |
| 49 | return it.value(); |
| 50 | |
| 51 | ClientBuffer *newBuffer = nullptr; |
| 52 | |
| 53 | for (auto *integration : QWaylandCompositorPrivate::get(compositor: m_compositor)->clientBufferIntegrations()) { |
| 54 | newBuffer = integration->createBufferFor(buffer: buffer_resource); |
| 55 | if (newBuffer) |
| 56 | break; |
| 57 | } |
| 58 | |
| 59 | if (newBuffer) |
| 60 | registerBuffer(buffer_resource, clientBuffer: newBuffer); |
| 61 | else |
| 62 | qCWarning(qLcWaylandCompositorHardwareIntegration) << "Could not create buffer for resource."; |
| 63 | |
| 64 | return newBuffer; |
| 65 | } |
| 66 | |
| 67 | |
| 68 | void BufferManager::destroy_listener_callback(wl_listener *listener, void *data) |
| 69 | { |
| 70 | buffer_manager_destroy_listener *destroy_listener = static_cast<buffer_manager_destroy_listener *>(listener); |
| 71 | BufferManager *self = destroy_listener->d; |
| 72 | struct ::wl_resource *buffer = static_cast<struct ::wl_resource *>(data); |
| 73 | |
| 74 | wl_list_remove(elm: &destroy_listener->link); |
| 75 | delete destroy_listener; |
| 76 | |
| 77 | Q_ASSERT(self); |
| 78 | Q_ASSERT(buffer); |
| 79 | |
| 80 | ClientBuffer *clientBuffer = self->m_buffers.take(key: buffer); |
| 81 | |
| 82 | if (!clientBuffer) |
| 83 | return; |
| 84 | |
| 85 | clientBuffer->setDestroyed(); |
| 86 | } |
| 87 | |
| 88 | } |
| 89 | QT_END_NAMESPACE |
| 90 |