1 files changed, 146 insertions, 0 deletions
diff --git a/src/hardwareintegration/compositor/shm-emulation-server/shmserverbufferintegration.cpp b/src/hardwareintegration/compositor/shm-emulation-server/shmserverbufferintegration.cpp
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index 000000000..7a86785b0
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+++ b/src/hardwareintegration/compositor/shm-emulation-server/shmserverbufferintegration.cpp
@@ -0,0 +1,146 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "shmserverbufferintegration.h"
+
+#include <QtGui/QOpenGLContext>
+#include <QtGui/QOpenGLTexture>
+#include <QtCore/QSharedMemory>
+
+#include <QtCore/QDebug>
+
+QT_BEGIN_NAMESPACE
+
+ShmServerBuffer::ShmServerBuffer(ShmServerBufferIntegration *integration, const QImage &qimage, QtWayland::ServerBuffer::Format format)
+    : QtWayland::ServerBuffer(qimage.size(),format)
+    , m_integration(integration)
+    , m_width(qimage.width())
+    , m_height(qimage.height())
+    , m_bpl(qimage.bytesPerLine())
+{
+    m_format = format;
+    switch (m_format) {
+        case RGBA32:
+            m_shm_format = QtWaylandServer::qt_shm_emulation_server_buffer::format_RGBA32;
+            break;
+        case A8:
+            m_shm_format = QtWaylandServer::qt_shm_emulation_server_buffer::format_A8;
+            break;
+        default:
+            qWarning("ShmServerBuffer: unsupported format");
+            m_shm_format = QtWaylandServer::qt_shm_emulation_server_buffer::format_RGBA32;
+            break;
+    }
+
+    QString key = "qt_shm_emulation_" + QString::number(qimage.cacheKey());
+    m_shm = new QSharedMemory(key);
+    int shm_size = qimage.byteCount();
+    bool ok = m_shm->create(shm_size) && m_shm->lock();
+    if (ok) {
+        memcpy(m_shm->data(), qimage.constBits(), shm_size);
+        m_shm->unlock();
+    } else {
+        qWarning() << "Could not create shared memory" << key << shm_size;
+    }
+}
+
+ShmServerBuffer::~ShmServerBuffer()
+{
+    delete m_shm;
+}
+
+struct ::wl_resource *ShmServerBuffer::resourceForClient(struct ::wl_client *client)
+{
+    auto *bufferResource = resourceMap().value(client);
+    if (!bufferResource) {
+        auto integrationResource = m_integration->resourceMap().value(client);
+        if (!integrationResource) {
+            qWarning("ShmServerBuffer::resourceForClient: Trying to get resource for ServerBuffer. But client is not bound to the shm_emulation interface");
+            return nullptr;
+        }
+        struct ::wl_resource *shm_integration_resource = integrationResource->handle;
+        Resource *resource = add(client, 1);
+        m_integration->send_server_buffer_created(shm_integration_resource, resource->handle, m_shm->key(), m_width, m_height, m_bpl, m_shm_format);
+        return resource->handle;
+    }
+    return bufferResource->handle;
+}
+
+
+QOpenGLTexture *ShmServerBuffer::toOpenGlTexture()
+{
+    if (!m_texture) {
+        qWarning("ShmServerBuffer::toOpenGlTexture: no texture defined");
+    }
+    return m_texture;
+}
+
+ShmServerBufferIntegration::ShmServerBufferIntegration()
+{
+}
+
+ShmServerBufferIntegration::~ShmServerBufferIntegration()
+{
+}
+
+void ShmServerBufferIntegration::initializeHardware(QWaylandCompositor *compositor)
+{
+    Q_ASSERT(QGuiApplication::platformNativeInterface());
+
+    QtWaylandServer::qt_shm_emulation_server_buffer::init(compositor->display(), 1);
+}
+
+bool ShmServerBufferIntegration::supportsFormat(QtWayland::ServerBuffer::Format format) const
+{
+    switch (format) {
+        case QtWayland::ServerBuffer::RGBA32:
+            return true;
+        case QtWayland::ServerBuffer::A8:
+            return true;
+        default:
+            return false;
+    }
+}
+
+QtWayland::ServerBuffer *ShmServerBufferIntegration::createServerBufferFromImage(const QImage &qimage, QtWayland::ServerBuffer::Format format)
+{
+    return new ShmServerBuffer(this, qimage, format);
+}
+
+QT_END_NAMESPACE