diff options
Diffstat (limited to 'src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp')
-rw-r--r-- | src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp index d0c9c9565e..977b318ad9 100644 --- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp +++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp @@ -129,10 +129,16 @@ void QEglJetsonTK1Window::resetSurface() qCDebug(qLcEglfsKmsDebug, "Creating stream"); EGLDisplay display = screen()->display(); - EGLOutputLayerEXT layer = EGL_NO_OUTPUT_LAYER_EXT; - EGLint count; + EGLint streamAttribs[3]; + int streamAttribCount = 0; + int fifoLength = qEnvironmentVariableIntValue("QT_QPA_EGLFS_STREAM_FIFO_LENGTH"); + if (fifoLength > 0) { + streamAttribs[streamAttribCount++] = EGL_STREAM_FIFO_LENGTH_KHR; + streamAttribs[streamAttribCount++] = fifoLength; + } + streamAttribs[streamAttribCount++] = EGL_NONE; - m_egl_stream = m_integration->m_funcs->create_stream(display, Q_NULLPTR); + m_egl_stream = m_integration->m_funcs->create_stream(display, streamAttribs); if (m_egl_stream == EGL_NO_STREAM_KHR) { qWarning("resetSurface: Couldn't create EGLStream for native window"); return; @@ -140,6 +146,16 @@ void QEglJetsonTK1Window::resetSurface() qCDebug(qLcEglfsKmsDebug, "Created stream %p on display %p", m_egl_stream, display); + EGLint count; + if (m_integration->m_funcs->query_stream(display, m_egl_stream, EGL_STREAM_FIFO_LENGTH_KHR, &count)) { + if (count > 0) + qCDebug(qLcEglfsKmsDebug, "Using EGLStream FIFO mode with %d frames", count); + else + qCDebug(qLcEglfsKmsDebug, "Using EGLStream mailbox mode"); + } else { + qCDebug(qLcEglfsKmsDebug, "Could not query number of EGLStream FIFO frames"); + } + if (!m_integration->m_funcs->get_output_layers(display, Q_NULLPTR, Q_NULLPTR, 0, &count) || count == 0) { qWarning("No output layers found"); return; @@ -159,6 +175,7 @@ void QEglJetsonTK1Window::resetSurface() Q_ASSERT(cur_screen); qCDebug(qLcEglfsKmsDebug, "Searching for id: %d", cur_screen->output().crtc_id); + EGLOutputLayerEXT layer = EGL_NO_OUTPUT_LAYER_EXT; for (int i = 0; i < actualCount; ++i) { EGLAttrib id; if (m_integration->m_funcs->query_output_layer_attrib(display, layers[i], EGL_DRM_CRTC_EXT, &id)) { |