diff options
author | Lionel CHAZALLON <longchair@hotmail.com> | 2018-03-08 08:19:04 +0100 |
---|---|---|
committer | Lionel CHAZALLON <longchair@hotmail.com> | 2018-03-17 08:19:02 +0000 |
commit | be015ef27d0233e6f0e7ea25a88462f4fdb31764 (patch) | |
tree | 04635b727c6886a28fd0145cac3a25bff9b1259b /src/platformsupport/kmsconvenience/qkmsdevice.cpp | |
parent | 27239f4fcfa6f64d60e7b79185ff413878152ebd (diff) |
eglfs/kms: Add DRM atomic ModeSetting
This patch will allow to set the video mode with DRM atomic API when available.
Using Atomic ModeSetting will allow further to enable framebuffer upscaling which is
something not possible with DRM legacy API or at least not supported on all devices
in a reliable way.
Change-Id: Ie340585cf4cbf5d65555c9a7c547dcbadb327fc0
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Diffstat (limited to 'src/platformsupport/kmsconvenience/qkmsdevice.cpp')
-rw-r--r-- | src/platformsupport/kmsconvenience/qkmsdevice.cpp | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/src/platformsupport/kmsconvenience/qkmsdevice.cpp b/src/platformsupport/kmsconvenience/qkmsdevice.cpp index 2378856768..22033f58d9 100644 --- a/src/platformsupport/kmsconvenience/qkmsdevice.cpp +++ b/src/platformsupport/kmsconvenience/qkmsdevice.cpp @@ -386,6 +386,16 @@ QPlatformScreen *QKmsDevice::createScreenForConnector(drmModeResPtr resources, output.drm_format = drmFormat; output.clone_source = cloneSource; +#if QT_CONFIG(drm_atomic) + if (drmModeCreatePropertyBlob(m_dri_fd, &modes[selected_mode], sizeof(drmModeModeInfo), + &output.mode_blob_id) != 0) { + qCDebug(qLcKmsDebug) << "Failed to create mode blob for mode" << selected_mode; + } + + parseConnectorProperties(output.connector_id, &output); + parseCrtcProperties(output.crtc_id, &output); +#endif + QString planeListStr; for (const QKmsPlane &plane : qAsConst(m_planes)) { if (plane.possibleCrtcs & (1 << output.crtc_index)) { @@ -817,7 +827,7 @@ bool QKmsDevice::atomicCommit(void *user_data) { if (m_atomic_request) { int ret = drmModeAtomicCommit(m_dri_fd, m_atomic_request, - DRM_MODE_ATOMIC_NONBLOCK | DRM_MODE_PAGE_FLIP_EVENT, user_data); + DRM_MODE_ATOMIC_NONBLOCK | DRM_MODE_PAGE_FLIP_EVENT | DRM_MODE_ATOMIC_ALLOW_MODESET, user_data); if (ret) { qWarning("Failed to commit atomic request (code=%d)", ret); @@ -842,6 +852,42 @@ void QKmsDevice::atomicReset() } #endif +void QKmsDevice::parseConnectorProperties(uint32_t connectorId, QKmsOutput *output) +{ + drmModeObjectPropertiesPtr objProps = drmModeObjectGetProperties(m_dri_fd, connectorId, DRM_MODE_OBJECT_CONNECTOR); + if (!objProps) { + qCDebug(qLcKmsDebug, "Failed to query connector %d object properties", connectorId); + return; + } + + enumerateProperties(objProps, [output](drmModePropertyPtr prop, quint64 value) { + Q_UNUSED(value); + if (!strcasecmp(prop->name, "crtc_id")) + output->crtcIdPropertyId = prop->prop_id; + }); + + drmModeFreeObjectProperties(objProps); +} + +void QKmsDevice::parseCrtcProperties(uint32_t crtcId, QKmsOutput *output) +{ + drmModeObjectPropertiesPtr objProps = drmModeObjectGetProperties(m_dri_fd, crtcId, DRM_MODE_OBJECT_CRTC); + if (!objProps) { + qCDebug(qLcKmsDebug, "Failed to query crtc %d object properties", crtcId); + return; + } + + enumerateProperties(objProps, [output](drmModePropertyPtr prop, quint64 value) { + Q_UNUSED(value) + if (!strcasecmp(prop->name, "mode_id")) + output->modeIdPropertyId = prop->prop_id; + else if (!strcasecmp(prop->name, "active")) + output->activePropertyId = prop->prop_id; + }); + + drmModeFreeObjectProperties(objProps); +} + QKmsScreenConfig *QKmsDevice::screenConfig() const { return m_screenConfig; |