Sorry, yes, good points.
# ./sgx_check.sh
WSEGL settings
[default]
WindowSystem=libpvrDRMWSEGL.so
DefaultPixelFormat=RGB888
#DefaultPixelFormat=RGB565
------
ARM CPU information
processor : 0
model name : ARMv7 Processor rev 2 (v7l)
BogoMIPS : 597.60
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc08
CPU revision : 2
Hardware : Generic OMAP36xx (Flattened Device Tree)
Revision : 0000
Serial : 0000000000000000
------
SGX driver information
Version SGX_DDK sgxddk 1.17@4948957 (release) dm37xx_linux
System Version String: SGX revision = 125
------
Framebuffer settings
mode "1280x720"
geometry 1280 720 1280 720 32
timings 0 0 0 0 0 0 0
accel true
rgba 8/16,8/8,8/0,0/0
endmode
Frame buffer device information:
Name : omapdrmdrmfb
Address : (nil)
Size : 3686400
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 5120
Accelerator : No
------
Rotation settings
0
------
PVR Module information
Module Size Used by
pvrsrvkm 393216 2
------
Boot settings
console=ttyO0,115200n8 rootwait=1 rw ubi.mtd=7,512 rootfstype=ubifs root=ubi0:compu-XXXX mtdoops.mtddev=omap2.nand earlyprintk=ttyO0,115200n8 nohlt omapfb.rotate=0 vram=40M omapfb.vram=20M,1:1M,2:1M omapfb.vrfb=y cma=64MB 5
------
Linux Kernel version
Linux compu-XXXX 5.10.168-1-ctx-g991c5ce91e #1 SMP PREEMPT Fri Apr 7 09:34:04 UTC 2023 armv7l GNU/Linux
------
Weston.ini
[core]
require-input=false
idle-timeout=0
gbm-format=xrgb8888
#gbm-format=rgb565
[output]
name=DPI-1
[libinput]
touchscreen_calibrator=true
calibration_helper=/bin/echo
[shell]
locking=false
animation=none
panel-position=none
close-animation=none
startup-animation=none
focus-animation=none
------
/etc/profile.d/qt_env.sh
#!/bin/sh
### QT Environment Variables ###
# export QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS="rotate=180"
export SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt
export QT_QPA_EGLFS_KMS_CONFIG=/etc/qt6/eglfs_kms_cfg.json
#export QT_QPA_EGLFS_INTEGRATION=eglfs_kms
export QT_QPA_EGLFS_ALWAYS_SET_MODE=1
export QT_WAYLAND_SHELL_INTEGRATION=xdg-shell
# SECCOMP-BPF Sandbox does not work due to unexpected FUTEX_UNLOCK_PI call
# from the pthread implementation. Disable this feature temporarily until
# those issues are resolved.
export QTWEBENGINE_CHROMIUM_FLAGS="--disable-seccomp-filter-sandbox"
export QT_QPA_EGLFS_INTEGRATION=none
export QSG_RHI_PREFER_SOFTWARE_RENDERER=0
export QT_WIDGETS_RHI_BACKEND=opengl
export QT_WIDGETS_HIGHDPI_DOWNSCALE=1
export QT_WIDGETS_RHI=1
export QT_OPENGL_NO_SANITY_CHECK=1
export QT_QPA_PLATFORM="wayland-egl"
export QT_WAYLAND_CLIENT_BUFFER_INTEGRATION="linux-dmabuf-unstable-v1"
export QT_WAYLAND_HARDWARE_INTEGRATION="linux-dmabuf-unstable-v1"
export QT_WAYLAND_SERVER_BUFFER_INTEGRATION="linux-dmabuf-unstable-v1"
export QT_WAYLAND_SHELL_INTEGRATION="xdg-shell"
export QT_WAYLAND_TEXT_INPUT_PROTOCOL="zwp_text_input_v1"
---
Version info:
# weston --version
weston 10.0.2
nsions string:
EGL_EXT_client_extensions EGL_EXT_device_base
EGL_EXT_device_enumeration EGL_EXT_device_query EGL_EXT_platform_base
EGL_KHR_client_get_all_proc_addresses EGL_KHR_debug
EGL_EXT_platform_device EGL_EXT_platform_wayland
EGL_KHR_platform_wayland EGL_MESA_platform_gbm EGL_KHR_platform_gbm
EGL_MESA_platform_surfaceless
GBM platform:
MESA: info: Loaded libpvr_dri_support.so
EGL API version: 1.4
EGL vendor string: Mesa Project
EGL version string: 1.4
EGL client APIs: OpenGL_ES
EGL extensions string:
EGL_EXT_buffer_age EGL_EXT_create_context_robustness
EGL_EXT_image_dma_buf_import EGL_EXT_yuv_surface
EGL_KHR_config_attribs EGL_KHR_create_context EGL_KHR_fence_sync
EGL_KHR_get_all_proc_addresses EGL_KHR_gl_renderbuffer_image
EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image
EGL_KHR_image EGL_KHR_image_base EGL_KHR_image_pixmap
EGL_KHR_no_config_context EGL_KHR_reusable_sync
EGL_KHR_surfaceless_context EGL_EXT_pixel_format_float
EGL_KHR_wait_sync EGL_MESA_configless_context EGL_MESA_drm_image
EGL_WL_bind_wayland_display EGL_IMG_cl_image
Configurations:
bf lv colorbuffer dp st ms vis cav bi renderable supported
id sz l r g b a th cl ns b id eat nd gl es es2 vg surfaces
---------------------------------------------------------------------
0x01 32 0 8 8 8 8 0 0 0 0 0x34325241-- a y y win,pb
0x02 32 0 8 8 8 8 0 0 4 1 0x34325241-- a y y win,pb
0x03 32 0 8 8 8 8 24 8 0 0 0x34325241-- a y y win,pb
0x04 32 0 8 8 8 8 24 8 4 1 0x34325241-- a y y win,pb
0x05 24 0 8 8 8 0 0 0 0 0 0x34325258-- y y y win,pb
0x06 24 0 8 8 8 0 0 0 4 1 0x34325258-- y y y win,pb
0x07 24 0 8 8 8 0 24 8 0 0 0x34325258-- y y y win,pb
0x08 24 0 8 8 8 0 24 8 4 1 0x34325258-- y y y win,pb
0x09 16 0 5 6 5 0 0 0 0 0 0x36314752-- y y y win,pb
0x0a 16 0 5 6 5 0 0 0 4 1 0x36314752-- y y y win,pb
0x0b 16 0 5 6 5 0 24 8 0 0 0x36314752-- y y y win,pb
0x0c 16 0 5 6 5 0 24 8 4 1 0x36314752-- y y y win,pb
MESA: info: Unloaded libpvr_dri_support.so
Wayland platform:
MESA: info: Loaded libpvr_dri_support.so
EGL API version: 1.4
EGL vendor string: Mesa Project
EGL version string: 1.4
EGL client APIs: OpenGL_ES
EGL extensions string:
EGL_EXT_buffer_age EGL_EXT_create_context_robustness
EGL_EXT_image_dma_buf_import EGL_EXT_present_opaque
EGL_EXT_swap_buffers_with_damage EGL_EXT_yuv_surface
EGL_KHR_config_attribs EGL_KHR_create_context EGL_KHR_fence_sync
EGL_KHR_get_all_proc_addresses EGL_KHR_gl_renderbuffer_image
EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image
EGL_KHR_image_base EGL_KHR_no_config_context EGL_KHR_reusable_sync
EGL_KHR_surfaceless_context EGL_KHR_swap_buffers_with_damage
EGL_EXT_pixel_format_float EGL_KHR_wait_sync
EGL_MESA_configless_context EGL_MESA_drm_image
EGL_WL_bind_wayland_display EGL_WL_create_wayland_buffer_from_image
EGL_IMG_cl_image
Configurations:
bf lv colorbuffer dp st ms vis cav bi renderable supported
id sz l r g b a th cl ns b id eat nd gl es es2 vg surfaces
---------------------------------------------------------------------
0x01 32 0 8 8 8 8 0 0 0 0 0x00-- a y y win,pb
0x02 32 0 8 8 8 8 0 0 4 1 0x00-- a y y win,pb
0x03 32 0 8 8 8 8 24 8 0 0 0x00-- a y y win,pb
0x04 32 0 8 8 8 8 24 8 4 1 0x00-- a y y win,pb
0x05 24 0 8 8 8 0 0 0 0 0 0x00-- y y y win,pb
0x06 24 0 8 8 8 0 0 0 4 1 0x00-- y y y win,pb
0x07 24 0 8 8 8 0 24 8 0 0 0x00-- y y y win,pb
0x08 24 0 8 8 8 0 24 8 4 1 0x00-- y y y win,pb
MESA: info: Unloaded libpvr_dri_support.so
---
QT Settings:
export QT_QPA_PLATFORM="wayland-egl"
export QT_WAYLAND_SHELL_INTEGRATION="xdg-shell"
export QT_WIDGETS_RHI=1
export QT_WIDGETS_RHI_BACKEND=opengl
Results (All taken with the PVRTune server running for looking at the results)
Running (Qt 6.8.3):
rhiwindow on Weston compositor: ~3.5 fps
rhiwindow on QT Fancy compositor: ~3 fps
rhiwindow in sway compositor : 0.5 fps. ~2.3 fps when pvrtune is not running
rhiwindow without compositor, using EGLFS: 35 fps
Note: Looks like GLES2 doesn't connect fully in Sway:
00:00:01.840 [wlr] [render/gles2/renderer.c:704] Failed to create GLES2 renderer
calculator (maximized):
Weston : ~1/4 second delay in reaction to touch. Quickly pressing a number 5 times takes 12 seconds to resolve all 5 presses (counting from end of the last touch).
QT Fancy compositor: ~1/4 s delay in reaction, 5 numbers takes 5 seconds to resolve all presses. Note that maximization of the calculator fails, so this is not as large as the Weston example. Error: Can't configure xdg_toplevel with an invalid size QSize(-1, -1)
Sway: Several seconds between press and response.
Sway: Run WITHOUT any RHI components (unset the QT_RHI... variables):
~1/4 second delay in response, ~1 second to resolve all presses. Not utilizing GPU at all.
When I turn off PVTune, no noticable delay in either case.
I think this actually indicates to me that there is a problem in my EGL setup with QT, more than the compositor, because in the pure-GPU case of using sway without RHI, we are very fast. However, it should be noted that the weston-simple-egl application gets around 30 fps when fullscreened, and 60fps when about 1/2 size and does utilize the GPU. I will post this information in the PVR forum, as it could be a problem with my PowerVR EGL connection... but it's odd to me that the simple-egl test application in Weston works perfectly well. that QT with EGLFS (no compositor) is substantially faster, and I get ~35 FPS when running rhiwindow and see good GPU utilization.
So it's not QT->EGL, and it's not Weston->EGL, it's QT-><any Compositor>->EGL which has a slowdown, even further in simple applications like the calculator than pure-cpu rendering.
EDIT:
I wrote up a post to debug the EGL/PowerVR side here: https://forums.imgtec.com/t/qt-slow-to-connect-to-pvr-using-weston/4167/2
What I noticed while writing it was that there is a big difference in performance between QT having to change the calculator number or not. (Pressing "clear" 5x was at least twice as fast as pressing a number 5x).
