Hello, Ihave built a simple application using QT & SDL that has a buttonwhich opens a preview on clicking, whenever camera (system/usb) isconnected to the EVM.
Myapp successfully receives correct parameters related to camera(resolution, frame rate, frame format) and I have verified it usingdebug prints. However, when I click on preview button, it crashes andthrows error related to EGL. Onexecuting it with gdb, I found out that it is not able to get a validEGL configuration. The eglChooseConfig function (in SDL_egl.c)doesn't find a matching EGL config and it fails to create a surfaceand open the preview. Also,Ido not get any "EGL 1.4 Initialised" prints whenmy app executes. This print, on the contrary, is visible when I runOGLES2ChameleonManin/usr/bin/SGX/demos/Wayland. Ondigging further, I found that the "eglinfo" commanddisplays the egl configurations on the terminal. However,when it returns EGL_BAD_ALLOC on my EVM, if I run it without stoppingweston. It runs successfully only after stopping weston. I amassuming this is the reason why my application is not able to find amatching EGL config because it runs over weston. ----------------------------------------------------------------------------------- root@am57xx-evm:/mnt# eglinfo eglGetConfigs():======================================================================**********************************EGL config number: 0EGL vendor string: Imagination TechnologiesEGL version string: 1.4 build 1.14@3699939 (MAIN)EGL extensions: EGL_IMG_client_api_ogl EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_vg_parent_image EGL_IMG_cl_image EGL_KHR_fence_sync EGL_IMG_context_priority EGL_IMG_hibernate_process EGL_IMG_image_plane_attribs EGL_KHR_surfaceless_context EGL_KHR_wait_sync EGL_KHR_create_context EGL_WL_bind_wayland_display EGL_EXT_image_dma_buf_importEGL client APIs are: OpenGL_ES EGL config Attributes:EGL_CONFIG_ID = 0x1 EGL_BUFFER_SIZE = 0x20 EGL_RED_SIZE = 0x8 EGL_GREEN_SIZE = 0x8 EGL_BLUE_SIZE = 0x8 EGL_LUMINANCE_SIZE = 0x0 EGL_ALPHA_SIZE = 0x8 EGL_ALPHA_MASK_SIZE = 0x0 EGL_BIND_TO_TEXTURE_RGB = 0x1 EGL_BIND_TO_TEXTURE_RGBA = 0x1 EGL_COLOR_BUFFER_TYPE = 0x308e EGL_CONFIG_CAVEAT = 0x3038 EGL_CONFORMANT = 0x1 EGL_DEPTH_SIZE = 0x18 EGL_LEVEL = 0x0 EGL_MAX_PBUFFER_WIDTH = 0x1000 EGL_MAX_PBUFFER_HEIGHT = 0x1000 EGL_MAX_PBUFFER_PIXELS = 0x1000000 EGL_MAX_SWAP_INTERVAL = 0xa EGL_MIN_SWAP_INTERVAL = 0x1 EGL_NATIVE_RENDERABLE = 0x0 EGL_NATIVE_VISUAL_ID = 0x0 EGL_NATIVE_VISUAL_TYPE = 0x0 EGL_RENDERABLE_TYPE = 0x1 EGL_OPENGL_ES_BIT EGL_SAMPLE_BUFFERS = 0x0 EGL_SAMPLES = 0x0 EGL_STENCIL_SIZE = 0x8 EGL_SURFACE_TYPE = 0x5 EGL_PBUFFER_BIT EGL_WINDOW_BIT EGL_TRANSPARENT_TYPE = 0x3038 EGL_TRANSPARENT_RED_VALUE = 0x0 EGL_TRANSPARENT_GREEN_VALUE = 0x0 EGL_TRANSPARENT_BLUE_VALUE = 0x0 Creating Window surface..PVR:(Error): WSEGL_CreateWindowDrawable: Couldn't set CRTC: Permission denied [0, ]Unable to create surfaceegl error 'EGL_BAD_ALLOC' (0x3003) ----------------------------------------------------------------------------------- Doesanyone has any idea about this strange behaviour? Also,Is there any way to run eglinfocommandwithout stopping weston?Because I think my application is pollingavailable egl configurations at the run time, but is notreturning anything as it runs over weston. The ldd of my application returns: ----------------------------------------------------------------------------------- root@am57xx-evm:/mnt# ldd cam_preview linux-vdso.so.1 (0xbec50000) libpjsua.so.2 => /usr/local/PJSIP_ONLY/libpjsua.so.2 (0xb6e6e000) libpjsip-ua.so.2 => /usr/local/PJSIP_ONLY/libpjsip-ua.so.2 (0xb6e48000) libpjsip-simple.so.2 => /usr/local/PJSIP_ONLY/libpjsip-simple.so.2 (0xb6e28000) libpjsip.so.2 => /usr/local/PJSIP_ONLY/libpjsip.so.2 (0xb6dda000) libpjmedia-codec.so.2 => /usr/local/PJSIP_ONLY/libpjmedia-codec.so.2 (0xb6dba000) libpjmedia-videodev.so.2 => /usr/local/PJSIP_ONLY/libpjmedia-videodev.so.2 (0xb6d9e000) libpjmedia-audiodev.so.2 => /usr/local/PJSIP_ONLY/libpjmedia-audiodev.so.2 (0xb6d88000) libpjmedia.so.2 => /usr/local/PJSIP_ONLY/libpjmedia.so.2 (0xb6d12000) libpjnath.so.2 => /usr/local/PJSIP_ONLY/libpjnath.so.2 (0xb6cdf000) libpjlib-util.so.2 => /usr/local/PJSIP_ONLY/libpjlib-util.so.2 (0xb6cab000) libsrtp.so.2 => /usr/local/PJSIP_ONLY/libsrtp.so.2 (0xb6c87000) libresample.so.2 => /usr/local/PJSIP_ONLY/libresample.so.2 (0xb6c6a000) libgsmcodec.so.2 => /usr/local/PJSIP_ONLY/libgsmcodec.so.2 (0xb6c4c000) libspeex.so.2 => /usr/local/PJSIP_ONLY/libspeex.so.2 (0xb6c13000) libilbccodec.so.2 => /usr/local/PJSIP_ONLY/libilbccodec.so.2 (0xb6bf4000) libg7221codec.so.2 => /usr/local/PJSIP_ONLY/libg7221codec.so.2 (0xb6bd4000) libyuv.so.2 => /usr/local/PJSIP_ONLY/libyuv.so.2 (0xb6ba5000) libpj.so.2 => /usr/local/PJSIP_ONLY/libpj.so.2 (0xb6b77000) libopenh264.so.5 => /usr/local/PJSIP_ONLY/libopenh264.so.5 (0xb6a94000) libstdc++.so.6 => /lib/libstdc++.so.6 (0xb6978000) libuuid.so.1 => /lib/libuuid.so.1 (0xb6964000) librt.so.1 => /lib/librt.so.1 (0xb694e000) libasound.so.2 => /usr/lib/libasound.so.2 (0xb686a000) libSDL2-2.0.so.0 => /usr/local/SDL_ONLY/libSDL2-2.0.so.0 (0xb6783000) libv4l2.so.0 => /usr/lib/libv4l2.so.0 (0xb6767000) libQt5Widgets.so.5 => /usr/lib/libQt5Widgets.so.5 (0xb625e000) libQt5Gui.so.5 => /usr/lib/libQt5Gui.so.5 (0xb5d71000) libQt5Core.so.5 => /usr/lib/libQt5Core.so.5 (0xb5887000) libpthread.so.0 => /lib/libpthread.so.0 (0xb5863000) libGLESv2.so.2 => /usr/lib/libGLESv2.so.2 (0xb57e8000) libQt5X11Extras.so.5 => /usr/local/PJSIP_ONLY/libQt5X11Extras.so.5 (0xb6f30000) libX11.so.6 => /usr/lib/libX11.so.6 (0xb56cb000) libxcb.so.1 => /usr/lib/libxcb.so.1 (0xb569b000) libXau.so.6 => /usr/lib/libXau.so.6 (0xb5688000) libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0xb5673000) libm.so.6 => /lib/libm.so.6 (0xb55f7000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb55ce000) libc.so.6 => /lib/libc.so.6 (0xb54e1000) /lib/ld-linux-armhf.so.3 (0xb6f16000) libdl.so.2 => /lib/libdl.so.2 (0xb54ce000) libwayland-client.so.0 => /usr/lib/libwayland-client.so.0 (0xb54b4000) libpvr_wlegl.so.1 => /usr/lib/libpvr_wlegl.so.1 (0xb54a3000) libwayland-cursor.so.0 => /usr/lib/libwayland-cursor.so.0 (0xb548c000) libxkbcommon.so.0 => /usr/lib/libxkbcommon.so.0 (0xb5444000) libv4lconvert.so.0 => /usr/lib/libv4lconvert.so.0 (0xb53c0000) libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0xb537c000) libsrv_um.so.1 => /usr/lib/libsrv_um.so.1 (0xb5338000) libpng16.so.16 => /usr/lib/libpng16.so.16 (0xb52ff000) libz.so.1 => /lib/libz.so.1 (0xb52db000) libicui18n.so.59 => /usr/lib/libicui18n.so.59 (0xb50db000) libicuuc.so.59 => /usr/lib/libicuuc.so.59 (0xb4f71000) libicudata.so.59 => /usr/lib/libicudata.so.59 (0xb364c000) libdrm.so.2 => /usr/lib/libdrm.so.2 (0xb362f000) libgbm.so.2 => /usr/lib/libgbm.so.2 (0xb361c000) libudev.so.1 => /lib/libudev.so.1 (0xb3600000) libwayland-server.so.0 => /usr/lib/libwayland-server.so.0 (0xb35e3000) libdrm_omap.so.1 => /usr/lib/libdrm_omap.so.1 (0xb35d0000) libffi.so.6 => /usr/lib/libffi.so.6 (0xb35b9000) libIMGegl.so.1 => /usr/lib/libIMGegl.so.1 (0xb3593000) libpvr2d.so.1 => /usr/lib/libpvr2d.so.1 (0xb357f000) libresolv.so.2 => /lib/libresolv.so.2 (0xb355e000) libcap.so.2 => /lib/libcap.so.2 (0xb3549000) libdbm.so.1 => /usr/lib/libdbm.so.1 (0xb3537000) --------------------------------------------------------------------------------------------- -- Thanks & Regards, Devashish Tiwari CDOT India
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