diff options
Diffstat (limited to 'src/hardwareintegration/compositor/shm-emulation-server/shmserverbufferintegration.cpp')
-rw-r--r-- | src/hardwareintegration/compositor/shm-emulation-server/shmserverbufferintegration.cpp | 146 |
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 new file mode 100644 index 000000000..7a86785b0 --- /dev/null +++ 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 |