Hi,
I seem to have encountered a potential configuration issue with mesa3d that's
precluding ES2 applications from running in Buildroot. I first encountered
this issue on Intel hardware, with an Intel GPU and the DRI i965 driver with
an EGL/ES2 app. I later confirmed the issue was still present on a Raspberry
Pi 4, using the Gallium v3d driver. Both platforms had a working graphical
stack with X11 and GLX.
I started with the master branch, commit 1025d09, and
raspberrypi4_64_defconfig.
I modified the defconfig as follows:
---
diff --git a/configs/raspberrypi4_64_defconfig b/configs/raspberrypi4_64_defconfig
index fd6f8e4dce..d8bd3c72ab 100644
--- a/configs/raspberrypi4_64_defconfig
+++ b/configs/raspberrypi4_64_defconfig
@@ -20,7 +20,27 @@ BR2_LINUX_KERNEL_INTREE_DTS_NAME="broadcom/bcm2711-rpi-4-b"
BR2_LINUX_KERNEL_DTB_OVERLAY_SUPPORT=y
BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
-
+BR2_PACKAGE_MESA3D_DEMOS=y
+BR2_PACKAGE_MESA3D=y
+BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_KMSRO=y
+BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_V3D=y
+BR2_PACKAGE_MESA3D_DRI_DRIVER_SWRAST=y
+BR2_PACKAGE_MESA3D_OSMESA_CLASSIC=y
+BR2_PACKAGE_MESA3D_OPENGL_GLX=y
+BR2_PACKAGE_MESA3D_OPENGL_ES=y
+BR2_PACKAGE_XORG7=y
+BR2_PACKAGE_XSERVER_XORG_SERVER=y
+BR2_PACKAGE_XCB_UTIL=y
+BR2_PACKAGE_XLIB_LIBFS=y
+BR2_PACKAGE_XLIB_LIBXSCRNSAVER=y
+BR2_PACKAGE_XLIB_LIBXCOMPOSITE=y
+BR2_PACKAGE_XLIB_LIBXFONT=y
+BR2_PACKAGE_XLIB_LIBXTST=y
+BR2_PACKAGE_XLIB_LIBXVMC=y
+BR2_PACKAGE_XLIB_LIBXXF86DGA=y
+BR2_PACKAGE_XLIB_LIBDMX=y
+BR2_PACKAGE_XAPP_XINIT=y
+BR2_PACKAGE_XTERM=y
BR2_PACKAGE_RPI_FIRMWARE=y
BR2_PACKAGE_RPI_FIRMWARE_VARIANT_PI4=y
The configuration summary for mesa3d indicates that EGL and ES2 support are
both enabled:
---
Message: Configuration summary:
prefix: /usr
libdir: lib
includedir: include
OpenGL: yes (ES1: yes ES2: yes)
OSMesa: libOSMesa
DRI platform: drm
DRI drivers: swrast
DRI driver dir: /usr/lib/dri
GLX: DRI-based
EGL: yes
EGL drivers: builtin:egl_dri2 builtin:egl_dri3
GBM: yes
EGL/Vulkan/VL platforms: surfaceless drm x11
Vulkan drivers: no
llvm: no
Gallium drivers: kmsro v3d
Gallium st: mesa
HUD lmsensors: no
Shared-glapi: yes
Additionally, the fkms overlay was enabled in config.txt like so:
dtoverlay=vc4-fkms-v3d,cma-192
With this configuration, I was able to successfully run the graphical program
glxgears, like so:
# startx /bin/glxgears
eglinfo also works, and outputs:
---
EGL client extensions 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_x11 EGL_MESA_platform_gbm
EGL_MESA_platform_surfaceless EGL_EXT_platform_device
GBM platform:
EGL API version: 1.4
EGL vendor string: Mesa Project
EGL version string: 1.4
EGL client APIs: OpenGL OpenGL_ES
EGL extensions string:
EGL_ANDROID_blob_cache EGL_EXT_buffer_age
EGL_EXT_image_dma_buf_import EGL_EXT_image_dma_buf_import_modifiers
EGL_KHR_cl_event2 EGL_KHR_config_attribs EGL_KHR_create_context
EGL_KHR_create_context_no_error EGL_KHR_fence_sync
EGL_KHR_get_all_proc_addresses EGL_KHR_gl_colorspace
EGL_KHR_gl_renderbuffer_image EGL_KHR_gl_texture_2D_image
EGL_KHR_gl_texture_3D_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_MESA_image_dma_buf_export EGL_MESA_query_driver
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 10 10 10 2 0 0 0 0 0x30334241-- y y y win
0x02 32 0 10 10 10 2 16 0 0 0 0x30334241-- y y y win
0x03 32 0 10 10 10 2 24 0 0 0 0x30334241-- y y y win
0x04 32 0 10 10 10 2 24 8 0 0 0x30334241-- y y y win
0x05 32 0 10 10 10 2 0 0 4 1 0x30334241-- y y y win
0x06 32 0 10 10 10 2 16 0 4 1 0x30334241-- y y y win
0x07 32 0 10 10 10 2 24 0 4 1 0x30334241-- y y y win
0x08 32 0 10 10 10 2 24 8 4 1 0x30334241-- y y y win
0x09 32 0 8 8 8 8 0 0 0 0 0x34325241-- y y y win
0x0a 32 0 8 8 8 8 16 0 0 0 0x34325241-- y y y win
0x0b 32 0 8 8 8 8 24 0 0 0 0x34325241-- y y y win
0x0c 32 0 8 8 8 8 24 8 0 0 0x34325241-- y y y win
0x0d 32 0 8 8 8 8 0 0 4 1 0x34325241-- y y y win
0x0e 32 0 8 8 8 8 16 0 4 1 0x34325241-- y y y win
0x0f 32 0 8 8 8 8 24 0 4 1 0x34325241-- y y y win
0x10 32 0 8 8 8 8 24 8 4 1 0x34325241-- y y y win
0x11 24 0 8 8 8 0 0 0 0 0 0x34325258-- y y y win
0x12 24 0 8 8 8 0 16 0 0 0 0x34325258-- y y y win
0x13 24 0 8 8 8 0 24 0 0 0 0x34325258-- y y y win
0x14 24 0 8 8 8 0 24 8 0 0 0x34325258-- y y y win
0x15 24 0 8 8 8 0 0 0 4 1 0x34325258-- y y y win
0x16 24 0 8 8 8 0 16 0 4 1 0x34325258-- y y y win
0x17 24 0 8 8 8 0 24 0 4 1 0x34325258-- y y y win
0x18 24 0 8 8 8 0 24 8 4 1 0x34325258-- y y y win
0x19 16 0 5 6 5 0 0 0 0 0 0x36314752-- y y y win
0x1a 16 0 5 6 5 0 16 0 0 0 0x36314752-- y y y win
0x1b 16 0 5 6 5 0 24 0 0 0 0x36314752-- y y y win
0x1c 16 0 5 6 5 0 24 8 0 0 0x36314752-- y y y win
0x1d 16 0 5 6 5 0 0 0 4 1 0x36314752-- y y y win
0x1e 16 0 5 6 5 0 16 0 4 1 0x36314752-- y y y win
0x1f 16 0 5 6 5 0 24 0 4 1 0x36314752-- y y y win
0x20 16 0 5 6 5 0 24 8 4 1 0x36314752-- y y y win
libEGL warning: DRI2: failed to authenticate
X11 platform:
EGL API version: 1.4
EGL vendor string: Mesa Project
EGL version string: 1.4
EGL client APIs: OpenGL OpenGL_ES
EGL extensions string:
EGL_KHR_config_attribs EGL_KHR_create_context
EGL_KHR_create_context_no_error EGL_KHR_get_all_proc_addresses
EGL_KHR_no_config_context EGL_KHR_reusable_sync
EGL_KHR_surfaceless_context EGL_EXT_pixel_format_float
EGL_MESA_configless_context
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 24 0 8 8 8 0 0 0 0 0 0x21TC y y y y win,pb,pix
0x02 24 0 8 8 8 0 0 8 0 0 0x21TC y y y y win,pb,pix
0x03 24 0 8 8 8 0 24 0 0 0 0x21TC y y y y win,pb,pix
0x04 24 0 8 8 8 0 24 8 0 0 0x21TC y y y y win,pb,pix
0x05 32 0 8 8 8 8 0 0 0 0 0x21TC a y y y win,pb,pix
0x06 32 0 8 8 8 8 0 8 0 0 0x21TC a y y y win,pb,pix
0x07 32 0 8 8 8 8 24 0 0 0 0x21TC a y y y win,pb,pix
0x08 32 0 8 8 8 8 24 8 0 0 0x21TC a y y y win,pb,pix
0x09 24 0 8 8 8 0 0 0 0 0 0x22DC y y y y win,pb,pix
0x0a 24 0 8 8 8 0 0 8 0 0 0x22DC y y y y win,pb,pix
0x0b 24 0 8 8 8 0 24 0 0 0 0x22DC y y y y win,pb,pix
0x0c 24 0 8 8 8 0 24 8 0 0 0x22DC y y y y win,pb,pix
0x0d 32 0 8 8 8 8 0 0 0 0 0x22DC a y y y win,pb,pix
0x0e 32 0 8 8 8 8 0 8 0 0 0x22DC a y y y win,pb,pix
0x0f 32 0 8 8 8 8 24 0 0 0 0x22DC a y y y win,pb,pix
0x10 32 0 8 8 8 8 24 8 0 0 0x22DC a y y y win,pb,pix
Device platform:
eglinfo: eglInitialize failed
Although the device platform failing to initialize looks suspicious.
es2_info fails with no configs returned by eglChooseConfig() with
EGL_OPENGL_ES2_BIT set.
---
es2_info: es2_info.c:158: make_x_window: Assertion `num_configs > 0' failed.
es2gears_x11 fails similarly
---
EGLUT: failed to choose a config
EGL_VERSION = 1.4
Any suggestions?
As a sidenote, is there a recommended way to include and delimit multiple
files/text snippets in an email like this, or is the way I did it okay?
Best,
Joseph
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