diff options
Diffstat (limited to 'src/plugins/platforms/eglfs/qeglfshooks_kms.cpp')
| -rw-r--r-- | src/plugins/platforms/eglfs/qeglfshooks_kms.cpp | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/src/plugins/platforms/eglfs/qeglfshooks_kms.cpp b/src/plugins/platforms/eglfs/qeglfshooks_kms.cpp deleted file mode 100644 index 9e5d624d87..0000000000 --- a/src/plugins/platforms/eglfs/qeglfshooks_kms.cpp +++ /dev/null @@ -1,422 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the qmake spec 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 Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qeglfshooks.h" -#include <QtPlatformSupport/private/qdevicediscovery_p.h> -#include <QtCore/private/qcore_unix_p.h> -#include <QtCore/QScopedPointer> -#include <QtGui/qpa/qplatformwindow.h> - -#include <xf86drm.h> -#include <xf86drmMode.h> -#include <gbm.h> - -QT_USE_NAMESPACE - -class QEglKmsHooks : public QEglFSHooks -{ -public: - QEglKmsHooks(); - - void platformInit() Q_DECL_OVERRIDE; - void platformDestroy() Q_DECL_OVERRIDE; - EGLNativeDisplayType platformDisplay() const Q_DECL_OVERRIDE; - QSizeF physicalScreenSize() const Q_DECL_OVERRIDE; - QSize screenSize() const Q_DECL_OVERRIDE; - int screenDepth() const Q_DECL_OVERRIDE; - QSurfaceFormat surfaceFormatFor(const QSurfaceFormat &inputFormat) const Q_DECL_OVERRIDE; - EGLNativeWindowType createNativeWindow(QPlatformWindow *platformWindow, - const QSize &size, - const QSurfaceFormat &format) Q_DECL_OVERRIDE; - void destroyNativeWindow(EGLNativeWindowType window) Q_DECL_OVERRIDE; - bool hasCapability(QPlatformIntegration::Capability cap) const Q_DECL_OVERRIDE; - void waitForVSync() const Q_DECL_OVERRIDE; - - void waitForVSyncImpl(); - bool setup_kms(); - - struct FrameBuffer { - FrameBuffer() : fb(0) {} - uint32_t fb; - }; - FrameBuffer *framebufferForBufferObject(gbm_bo *bo); - -private: - // device bits - QByteArray m_device; - int m_dri_fd; - gbm_device *m_gbm_device; - - // KMS bits - drmModeConnector *m_drm_connector; - drmModeEncoder *m_drm_encoder; - drmModeModeInfo m_drm_mode; - quint32 m_drm_crtc; - - // Drawing bits - gbm_surface *m_gbm_surface; -}; - -static QEglKmsHooks kms_hooks; -QEglFSHooks *platformHooks = &kms_hooks; - -QEglKmsHooks::QEglKmsHooks() - : m_dri_fd(-1) - , m_gbm_device(Q_NULLPTR) - , m_drm_connector(Q_NULLPTR) - , m_drm_encoder(Q_NULLPTR) - , m_drm_crtc(0) - , m_gbm_surface(Q_NULLPTR) -{ - -} - -void QEglKmsHooks::platformInit() -{ - QDeviceDiscovery *d = QDeviceDiscovery::create(QDeviceDiscovery::Device_VideoMask); - QStringList devices = d->scanConnectedDevices(); - d->deleteLater(); - - if (devices.isEmpty()) - qFatal("Could not find DRM device!"); - - m_device = devices.first().toLocal8Bit(); - m_dri_fd = qt_safe_open(m_device.constData(), O_RDWR | O_CLOEXEC); - if (m_dri_fd == -1) { - qErrnoWarning("Could not open DRM device %s", m_device.constData()); - qFatal("DRM device required, aborting."); - } - - if (!setup_kms()) - qFatal("Could not set up KMS on device %s!", m_device.constData()); - - m_gbm_device = gbm_create_device(m_dri_fd); - if (!m_gbm_device) - qFatal("Could not initialize gbm on device %s!", m_device.constData()); -} - -void QEglKmsHooks::platformDestroy() -{ - gbm_device_destroy(m_gbm_device); - m_gbm_device = Q_NULLPTR; - - if (qt_safe_close(m_dri_fd) == -1) - qErrnoWarning("Could not close DRM device %s", m_device.constData()); - - m_dri_fd = -1; -} - -EGLNativeDisplayType QEglKmsHooks::platformDisplay() const -{ - return static_cast<EGLNativeDisplayType>(m_gbm_device); -} - -QSizeF QEglKmsHooks::physicalScreenSize() const -{ - return QSizeF(m_drm_connector->mmWidth, - m_drm_connector->mmHeight); -} - -QSize QEglKmsHooks::screenSize() const -{ - return QSize(m_drm_mode.hdisplay, - m_drm_mode.vdisplay); -} - -int QEglKmsHooks::screenDepth() const -{ - return 32; -} - -QSurfaceFormat QEglKmsHooks::surfaceFormatFor(const QSurfaceFormat &inputFormat) const -{ - QSurfaceFormat format(inputFormat); - format.setRenderableType(QSurfaceFormat::OpenGLES); - format.setSwapBehavior(QSurfaceFormat::DoubleBuffer); - format.setRedBufferSize(8); - format.setGreenBufferSize(8); - format.setBlueBufferSize(8); - return format; -} - -EGLNativeWindowType QEglKmsHooks::createNativeWindow(QPlatformWindow *platformWindow, - const QSize &size, - const QSurfaceFormat &format) -{ - Q_UNUSED(platformWindow); - Q_UNUSED(size); - Q_UNUSED(format); - - if (m_gbm_surface) { - qWarning("Only single window apps supported!"); - return 0; - } - - m_gbm_surface = gbm_surface_create(m_gbm_device, - screenSize().width(), - screenSize().height(), - GBM_FORMAT_XRGB8888, - GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING); - if (!m_gbm_surface) - qFatal("Could not initialize GBM surface"); - - return reinterpret_cast<EGLNativeWindowType>(m_gbm_surface); -} - -void QEglKmsHooks::destroyNativeWindow(EGLNativeWindowType window) -{ - gbm_surface *surface = reinterpret_cast<gbm_surface *>(window); - if (surface == m_gbm_surface) - m_gbm_surface = Q_NULLPTR; - gbm_surface_destroy(surface); -} - -bool QEglKmsHooks::hasCapability(QPlatformIntegration::Capability cap) const -{ - switch (cap) { - case QPlatformIntegration::ThreadedPixmaps: - case QPlatformIntegration::OpenGL: - case QPlatformIntegration::ThreadedOpenGL: - case QPlatformIntegration::BufferQueueingOpenGL: - return true; - default: - return false; - } -} - -static void gbm_bo_destroyed_callback(gbm_bo *bo, void *data) -{ - QEglKmsHooks::FrameBuffer *fb = static_cast<QEglKmsHooks::FrameBuffer *>(data); - - if (fb->fb) { - gbm_device *device = gbm_bo_get_device(bo); - drmModeRmFB(gbm_device_get_fd(device), fb->fb); - } - - delete fb; -} - -QEglKmsHooks::FrameBuffer *QEglKmsHooks::framebufferForBufferObject(gbm_bo *bo) -{ - { - FrameBuffer *fb = static_cast<FrameBuffer *>(gbm_bo_get_user_data(bo)); - if (fb) - return fb; - } - - uint32_t width = gbm_bo_get_width(bo); - uint32_t height = gbm_bo_get_height(bo); - uint32_t stride = gbm_bo_get_stride(bo); - uint32_t handle = gbm_bo_get_handle(bo).u32; - - QScopedPointer<FrameBuffer> fb(new FrameBuffer); - - int ret = drmModeAddFB(m_dri_fd, width, height, 24, 32, - stride, handle, &fb->fb); - - if (ret) { - qWarning("Failed to create KMS FB!"); - return Q_NULLPTR; - } - - gbm_bo_set_user_data(bo, fb.data(), gbm_bo_destroyed_callback); - return fb.take(); -} - -static void page_flip_handler(int fd, - unsigned int sequence, - unsigned int tv_sec, - unsigned int tv_usec, - void *user_data) -{ - Q_UNUSED(fd); - Q_UNUSED(sequence); - Q_UNUSED(tv_sec); - Q_UNUSED(tv_usec); - - // We are no longer flipping - *static_cast<bool *>(user_data) = false; -} - -void QEglKmsHooks::waitForVSync() const -{ - const_cast<QEglKmsHooks*>(this)->waitForVSyncImpl(); -} - -void QEglKmsHooks::waitForVSyncImpl() -{ - if (!m_gbm_surface) { - qWarning("Cannot sync before platform init!"); - return; - } - - if (!gbm_surface_has_free_buffers(m_gbm_surface)) { - qWarning("Out of free GBM buffers!"); - return; - } - - gbm_bo *front_buffer = gbm_surface_lock_front_buffer(m_gbm_surface); - if (!front_buffer) { - qWarning("Could not lock GBM surface front buffer!"); - return; - } - - QEglKmsHooks::FrameBuffer *fb = framebufferForBufferObject(front_buffer); - - int ret = drmModeSetCrtc(m_dri_fd, - m_drm_crtc, - fb->fb, - 0, 0, - &m_drm_connector->connector_id, 1, - &m_drm_mode); - if (ret) { - qErrnoWarning("Could not set DRM mode!"); - return; - } - - bool flipping = true; - ret = drmModePageFlip(m_dri_fd, - m_drm_encoder->crtc_id, - fb->fb, - DRM_MODE_PAGE_FLIP_EVENT, - &flipping); - if (ret) { - qErrnoWarning("Could not queue DRM page flip!"); - return; - } - - drmEventContext drmEvent = { - DRM_EVENT_CONTEXT_VERSION, - Q_NULLPTR, // vblank handler - page_flip_handler // page flip handler - }; - - fd_set fds; - FD_ZERO(&fds); - FD_SET(m_dri_fd, &fds); - - time_t start, cur; - time(&start); - - while (flipping && (time(&cur) < start + 1)) { - timespec v; - memset(&v, 0, sizeof(v)); - v.tv_sec = start + 1 - cur; - - ret = qt_safe_select(m_dri_fd + 1, &fds, Q_NULLPTR, Q_NULLPTR, &v); - - if (ret == 0) { - // timeout - break; - } else if (ret == -1) { - qErrnoWarning("Error while selecting on DRM fd"); - break; - } else if (drmHandleEvent(m_dri_fd, &drmEvent)) { - qWarning("Could not handle DRM event!"); - } - } - - gbm_surface_release_buffer(m_gbm_surface, front_buffer); -} - -bool QEglKmsHooks::setup_kms() -{ - drmModeRes *resources; - drmModeConnector *connector; - drmModeEncoder *encoder; - quint32 crtc = 0; - int i; - - resources = drmModeGetResources(m_dri_fd); - if (!resources) { - qWarning("drmModeGetResources failed"); - return false; - } - - for (i = 0; i < resources->count_connectors; i++) { - connector = drmModeGetConnector(m_dri_fd, resources->connectors[i]); - if (connector == NULL) - continue; - - if (connector->connection == DRM_MODE_CONNECTED && - connector->count_modes > 0) { - break; - } - - drmModeFreeConnector(connector); - } - - if (i == resources->count_connectors) { - qWarning("No currently active connector found."); - return false; - } - - for (i = 0; i < resources->count_encoders; i++) { - encoder = drmModeGetEncoder(m_dri_fd, resources->encoders[i]); - - if (encoder == NULL) - continue; - - if (encoder->encoder_id == connector->encoder_id) - break; - - drmModeFreeEncoder(encoder); - } - - for (int j = 0; j < resources->count_crtcs; j++) { - if ((encoder->possible_crtcs & (1 << j))) { - crtc = resources->crtcs[j]; - break; - } - } - - if (crtc == 0) - qFatal("No suitable CRTC available"); - - m_drm_connector = connector; - m_drm_encoder = encoder; - m_drm_mode = connector->modes[0]; - m_drm_crtc = crtc; - - drmModeFreeResources(resources); - - return true; -} |