OpenGL error: GL_INVALID_OPERATION

[christoph-heinrich]

• mpv 0.34.0-353-g230d490eca
• Arch Linux
• compiled from source
• introduced in 661b5542de21d46d4d7c4693e564f4eec0526812
• KDE Plasma 5.25.1 using Wayland
• Mesa 22.1.2 AMD R9 380

I get the following error when using --vo=gpu-next and OpenGL: [vo/gpu-next] gl_fb_query: OpenGL error: GL_INVALID_OPERATION Other then that message, everything seems to be working as expected.

Reproduction steps

mpv --no-config --idle=yes --force-window=yes --vo=gpu-next --gpu-api=opengl Does not happen with --gpu-api=vulkan.

Expected behavior

No errors when everything is working fine.

Actual behavior

[vo/gpu-next] gl_fb_query: OpenGL error: GL_INVALID_OPERATION

Log file

output.txt

[Dudemanguy]

Ah yeah, that message is from libplacebo. It's harmless but perhaps scary looking.

[haasn]

If you can track down which exact call is the invalid one we might be able to avoid running it. (Try apitrace)

[christoph-heinrich]

For future reference: As discussed in IRC, using apitrace was not successful. Neither the Arch package (10.0) nor a compiled version showed where this error occurs. Same story for libepoxy (Arch package 1.5.10) A fix got reverted again because it caused a bunch of new problems. Regardless I tried reverting the revert, which also didn't help.

[christoph-heinrich]

I came across RenderDoc and tried it out.

In the call glClear() with the mask GL_COLOR_BUFFER_BIT (only happens here) it gives me a bunch of debug messages with severety "High". description GL_INVALID_OPERATION in glGetFramebufferAttachmentParameteriv(invalid pname GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE) description GL_INVALID_OPERATION in glGetFramebufferAttachmentParameteriv(invalid pname GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE) description GL_INVALID_OPERATION in glGetFramebufferAttachmentParameteriv(invalid pname GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE) description GL_INVALID_OPERATION in glGetFramebufferAttachmentParameteriv(invalid pname GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE) description GL_INVALID_OPERATION in glGetFramebufferAttachmentParameteriv(invalid pname GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE) The only place where these happen is here.

The same call also gives this debug message with severity "Info". description Shader Stats: SGPRS: 96 VGPRS: 8 Code Size: 48 LDS: 0 Scratch: 0 Max Waves: 8 Spilled SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 DivergentLoop: 0, InlineUniforms: 0, ParamExports: 0, (PS, W64)

[Dudemanguy]

That seems logical. The framebuffer likely doesn't exist the very first time that gets called. I'm not sure what the right way around this is.

[bsmith75]

I’m still getting this error with vo=gpu-next and gpu-context=wayland in mpv 0.35.1 on a fully-updated Manjaro installation. Despite the error, mpv plays videos normally.

[vo/gpu-next/libplacebo] gl_fb_query: OpenGL error: GL_INVALID_OPERATION

I have tried running mpv -v and saw no other messages concerning this error.