Crash on android device using the latest source codes

[geroge-d]

Hi guys
I built a debug version using the latest source codes, and ran into a crash

Crash log below:
/Filament: KHR_debug PERFORMANCE: Tracking surface compression isn't performant when decompressing just for an app read
../../filament/backend/src/opengl/OpenGLDriver.cpp:1988: GLsizei filament::OpenGLDriver::getAttachments(std::array<GLenum, 6> &, const filament::OpenGLDriver::GLRenderTarget *, filament::backend::TargetBufferFlags) const: assertion "!defaultFramebuffer" failed

[geroge-d]

I think it may be casued by the code in view.h:
void setRenderTarget(RenderTarget* renderTarget,
TargetBufferFlags discard = TargetBufferFlags::ALL) noexcept
TargetBufferFlags::ALL = COLOR_ALL | DEPTH | STENCIL

COLOR_ALL combines all the color buffer like COLOR0 | COLOR1 | COLOR2 | COLOR3

[geroge-d]

Full stacktrace for the crash:
0x281b000041a4
#00 pc 000000000005f608 /system/lib64/libc.so (tgkill+8) [arm64-v8a::232ca221f0e5e37f634f3a7698b61d7b]
#1 pc 0000000000019cc4 /system/lib64/libc.so (pthread_kill+160) [arm64-v8a::232ca221f0e5e37f634f3a7698b61d7b]
#2 pc 000000000001b224 /system/lib64/libc.so (raise+28) [arm64-v8a::232ca221f0e5e37f634f3a7698b61d7b]
#3 pc 0000000000014afc /system/lib64/libc.so (abort+60) [arm64-v8a::232ca221f0e5e37f634f3a7698b61d7b]
#4 pc 000000000001701c /system/lib64/libc.so (__libc_fatal+128) [arm64-v8a::232ca221f0e5e37f634f3a7698b61d7b]
#5 pc 0000000000014bd4 /system/lib64/libc.so (__assert2+40) [arm64-v8a::232ca221f0e5e37f634f3a7698b61d7b]
#6 pc 00000000002ef8e0 /arm64/libfilament-jni.so (_ZNK8filament12OpenGLDriver14getAttachmentsERNSt6__ndk15arrayIjLm6EEEPKNS0_14GLRenderTargetENS_7backend17TargetBufferFlagsE+272) [arm64-v8a::f1793d368b9f66ca1a9dcd82e997e7d6]
#7 pc 00000000002fd0a8 /lib/arm64/libfilament-jni.so (_ZN8filament12OpenGLDriver15beginRenderPassENS_7backend6HandleINS1_14HwRenderTargetEEERKNS1_16RenderPassParamsE+264) [arm64-v8a::f1793d368b9f66ca1a9dcd82e997e7d6]
#8 pc 0000000000319388 /lib/arm64/libfilament-jni.so (ZN8filament7backend6invokeINS_12OpenGLDriverEFvNS0_6HandleINS0_14HwRenderTargetEEERKNS0_16RenderPassParamsEERS2_JS5_S7_EEEDcMT_T0_OT1_DpOT2+216) [arm64-v8a::f1793d368b9f66ca1a9dcd82e997e7d6]
#9 pc 000000000031929c /lib/arm64/libfilament-jni.so (_ZN8filament7backend10trampolineIMNS_12OpenGLDriverEFvNS0_6HandleINS0_14HwRenderTargetEEERKNS0_16RenderPassParamsEERS2_NSt6__ndk15tupleIJS5_S7_EEEJLm0ELm1EEEEDcOT_OT0_OT1_NSC_16integer_sequenceImJXspT2_EEEE+156) [arm64-v8a::f1793d368b9f66ca1a9dcd82e997e7d6]
#10 pc 00000000003191c4 /lib/arm64/libfilament-jni.so (ZN8filament7backend5applyIMNS_12OpenGLDriverEFvNS0_6HandleINS0_14HwRenderTargetEEERKNS0_16RenderPassParamsEERS2_NSt6__ndk15tupleIJS5_S7_EEEEEDcOT_OT0_OT1+100) [arm64-v8a::f1793d368b9f66ca1a9dcd82e997e7d6]
#11 pc 00000000002fcf80 /lib/arm64/libfilament-jni.so (_ZN8filament7backend11CommandTypeIJMNS0_6DriverEFvNS0_6HandleINS0_14HwRenderTargetEEERKNS0_16RenderPassParamsEEEE7CommandIXadL_ZNS2_15beginRenderPassES5_S8_EEE7executeIMNS_12OpenGLDriverEFvS5_S8_ERSF_EEvOT_OT0_PNS0_11CommandBaseEPl+144) [arm64-v8a::f1793d368b9f66ca1a9dcd82e997e7d6]
#12 pc 00000000002f7bd4 /lib/arm64/libfilament-jni.so (_ZN8filament7backend18ConcreteDispatcherINS_12OpenGLDriverEE15beginRenderPassERNS0_6DriverEPNS0_11CommandBaseEPl+68) [arm64-v8a::f1793d368b9f66ca1a9dcd82e997e7d6]
#13 pc 00000000002c7d30 /lib/arm64/libfilament-jni.so (_ZN8filament7backend11CommandBase7executeERNS0_6DriverE+64) [arm64-v8a::f1793d368b9f66ca1a9dcd82e997e7d6]

[romainguy]

@pixelflinger Mathias, looks like the assert might be too strict when we want to clear FBO 0. That or we should be careful to clear only COLOR0 for the default framebuffer.

[geroge-d]

And we found another issue related to clear process. When we render model into a rendertarget,it seams filament not clear the color buffer of render target ,in despite we call view.setClearTarget(true,true,true)

[pixelflinger]

@geroge-d can you file another issue for the clear error, and please give us as much info as possible.