1 files changed, 242 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qeglfskmsvsp2integration.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qeglfskmsvsp2integration.cpp
new file mode 100644
index 0000000000..f85d6183f6
--- /dev/null
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qeglfskmsvsp2integration.cpp
@@ -0,0 +1,242 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Pier Luigi Fiorini <pierluigi.fiorini@gmail.com>
+** Copyright (C) 2017 The Qt Company Ltd.
+** Copyright (C) 2016 Pelagicore AG
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins 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 "qeglfskmsvsp2integration.h"
+#include "qeglfskmsvsp2device.h"
+#include "qeglfskmsvsp2screen.h"
+#include "private/qeglfswindow_p.h"
+
+#include <QtDeviceDiscoverySupport/private/qdevicediscovery_p.h>
+#include <QtEglSupport/private/qeglconvenience_p.h>
+#include <QtCore/QLoggingCategory>
+#include <QtCore/QJsonDocument>
+#include <QtCore/QJsonObject>
+#include <QtCore/QJsonArray>
+#include <QtGui/qpa/qplatformwindow.h>
+#include <QtGui/QScreen>
+#include <QtPlatformHeaders/qeglfsfunctions.h>
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <gbm.h>
+
+QT_BEGIN_NAMESPACE
+
+QEglFSKmsVsp2Integration::QEglFSKmsVsp2Integration()
+{
+    qCDebug(qLcEglfsKmsDebug, "New DRM/KMS via Vsp2 integration created");
+}
+
+#ifndef EGL_EXT_platform_base
+typedef EGLDisplay (EGLAPIENTRYP PFNEGLGETPLATFORMDISPLAYEXTPROC) (EGLenum platform, void *native_display, const EGLint *attrib_list);
+typedef EGLSurface (EGLAPIENTRYP PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC) (EGLDisplay dpy, EGLConfig config, void *native_window, const EGLint *attrib_list);
+#endif
+
+#ifndef EGL_PLATFORM_GBM_KHR
+#define EGL_PLATFORM_GBM_KHR 0x31D7
+#endif
+
+EGLDisplay QEglFSKmsVsp2Integration::createDisplay(EGLNativeDisplayType nativeDisplay)
+{
+    qCDebug(qLcEglfsKmsDebug, "Querying EGLDisplay");
+    EGLDisplay display;
+
+    PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplay = nullptr;
+    const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
+    if (extensions && (strstr(extensions, "EGL_KHR_platform_gbm") || strstr(extensions, "EGL_MESA_platform_gbm"))) {
+        getPlatformDisplay = reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>(
+            eglGetProcAddress("eglGetPlatformDisplayEXT"));
+    }
+
+    if (getPlatformDisplay) {
+        display = getPlatformDisplay(EGL_PLATFORM_GBM_KHR, nativeDisplay, nullptr);
+    } else {
+        qCDebug(qLcEglfsKmsDebug, "No eglGetPlatformDisplay for GBM, falling back to eglGetDisplay");
+        display = eglGetDisplay(nativeDisplay);
+    }
+
+    return display;
+}
+
+EGLNativeWindowType QEglFSKmsVsp2Integration::createNativeOffscreenWindow(const QSurfaceFormat &format)
+{
+    Q_UNUSED(format);
+    Q_ASSERT(device());
+
+    gbm_surface *surface = gbm_surface_create(static_cast<QEglFSKmsVsp2Device *>(device())->gbmDevice(),
+                                              1, 1,
+                                              GBM_FORMAT_XRGB8888,
+                                              GBM_BO_USE_RENDERING);
+
+    return reinterpret_cast<EGLNativeWindowType>(surface);
+}
+
+void QEglFSKmsVsp2Integration::destroyNativeWindow(EGLNativeWindowType window)
+{
+    gbm_surface *surface = reinterpret_cast<gbm_surface *>(window);
+    //TODO call screen destroysurface instead
+    gbm_surface_destroy(surface);
+}
+
+void QEglFSKmsVsp2Integration::presentBuffer(QPlatformSurface *surface)
+{
+    QWindow *window = static_cast<QWindow *>(surface->surface());
+    auto *screen = static_cast<QEglFSKmsVsp2Screen *>(window->screen()->handle());
+    screen->flip();
+}
+
+QFunctionPointer QEglFSKmsVsp2Integration::platformFunction(const QByteArray &function) const
+{
+    if (function == QEglFSFunctions::vsp2AddLayerTypeIdentifier())
+        return QFunctionPointer(addLayerStatic);
+    if (function == QEglFSFunctions::vsp2RemoveLayerTypeIdentifier())
+        return QFunctionPointer(removeLayerStatic);
+    if (function == QEglFSFunctions::vsp2SetLayerBufferTypeIdentifier())
+        return QFunctionPointer(setLayerBufferStatic);
+    if (function == QEglFSFunctions::vsp2SetLayerPositionTypeIdentifier())
+        return QFunctionPointer(setLayerPositionStatic);
+    if (function == QEglFSFunctions::vsp2AddBlendListenerTypeIdentifier())
+        return QFunctionPointer(addBlendListenerStatic);
+
+    return nullptr;
+}
+
+QKmsDevice *QEglFSKmsVsp2Integration::createDevice()
+{
+    QString path = screenConfig()->devicePath();
+    if (!path.isEmpty()) {
+        qCDebug(qLcEglfsKmsDebug) << "VSP2: Using DRM device" << path << "specified in config file";
+    } else {
+        QDeviceDiscovery *d = QDeviceDiscovery::create(QDeviceDiscovery::Device_VideoMask);
+        const QStringList devices = d->scanConnectedDevices();
+        qCDebug(qLcEglfsKmsDebug) << "Found the following video devices:" << devices;
+        d->deleteLater();
+
+        if (Q_UNLIKELY(devices.isEmpty()))
+            qFatal("Could not find DRM device!");
+
+        path = devices.first();
+        qCDebug(qLcEglfsKmsDebug) << "Using" << path;
+    }
+
+    return new QEglFSKmsVsp2Device(screenConfig(), path);
+}
+
+int QEglFSKmsVsp2Integration::addLayerStatic(const QScreen *screen, int dmabufFd, const QSize &size, const QPoint &position, uint pixelFormat, uint bytesPerLine)
+{
+    auto vsp2Screen = static_cast<QEglFSKmsVsp2Screen *>(screen->handle());
+    return vsp2Screen->addLayer(dmabufFd, size, position, pixelFormat, bytesPerLine);
+}
+
+bool QEglFSKmsVsp2Integration::removeLayerStatic(const QScreen *screen, int id)
+{
+    auto vsp2Screen = static_cast<QEglFSKmsVsp2Screen *>(screen->handle());
+    return vsp2Screen->removeLayer(id);
+}
+
+void QEglFSKmsVsp2Integration::setLayerBufferStatic(const QScreen *screen, int id, int dmabufFd)
+{
+    auto vsp2Screen = static_cast<QEglFSKmsVsp2Screen *>(screen->handle());
+    vsp2Screen->setLayerBuffer(id, dmabufFd);
+}
+
+void QEglFSKmsVsp2Integration::setLayerPositionStatic(const QScreen *screen, int id, const QPoint &position)
+{
+    auto vsp2Screen = static_cast<QEglFSKmsVsp2Screen *>(screen->handle());
+    vsp2Screen->setLayerPosition(id, position);
+}
+
+void QEglFSKmsVsp2Integration::addBlendListenerStatic(const QScreen *screen, void(*callback)())
+{
+    auto vsp2Screen = static_cast<QEglFSKmsVsp2Screen *>(screen->handle());
+    vsp2Screen->addBlendListener(callback);
+}
+
+class QEglFSKmsVsp2Window : public QEglFSWindow
+{
+public:
+    QEglFSKmsVsp2Window(QWindow *w, const QEglFSKmsVsp2Integration *integration)
+        : QEglFSWindow(w)
+        , m_integration(integration)
+    {}
+    void resetSurface() override;
+    void invalidateSurface() override;
+    const QEglFSKmsVsp2Integration *m_integration;
+};
+
+void QEglFSKmsVsp2Window::resetSurface()
+{
+    auto *vsp2Screen = static_cast<QEglFSKmsVsp2Screen *>(screen());
+    EGLDisplay display = vsp2Screen->display();
+    QSurfaceFormat platformFormat = m_integration->surfaceFormatFor(window()->requestedFormat());
+    m_config = QEglFSDeviceIntegration::chooseConfig(display, platformFormat);
+    m_format = q_glFormatFromConfig(display, m_config, platformFormat);
+    // One fullscreen window per screen -> the native window is simply the gbm_surface the screen created.
+    m_window = reinterpret_cast<EGLNativeWindowType>(vsp2Screen->createSurface());
+
+    PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC createPlatformWindowSurface = nullptr;
+    const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
+    if (extensions && (strstr(extensions, "EGL_KHR_platform_gbm") || strstr(extensions, "EGL_MESA_platform_gbm"))) {
+        createPlatformWindowSurface = reinterpret_cast<PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC>(
+            eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT"));
+    }
+
+    if (createPlatformWindowSurface) {
+        m_surface = createPlatformWindowSurface(display, m_config, reinterpret_cast<void *>(m_window), nullptr);
+    } else {
+        qCDebug(qLcEglfsKmsDebug, "No eglCreatePlatformWindowSurface for GBM, falling back to eglCreateWindowSurface");
+        m_surface = eglCreateWindowSurface(display, m_config, m_window, nullptr);
+    }
+}
+
+void QEglFSKmsVsp2Window::invalidateSurface()
+{
+    auto *vsp2Screen = static_cast<QEglFSKmsVsp2Screen *>(screen());
+    QEglFSWindow::invalidateSurface();
+    vsp2Screen->resetSurface();
+}
+
+QEglFSWindow *QEglFSKmsVsp2Integration::createWindow(QWindow *window) const
+{
+    return new QEglFSKmsVsp2Window(window, this);
+}
+
+QT_END_NAMESPACE