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regression: offscreen gl context panic #24206

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paulrouget opened this issue Sep 13, 2019 · 5 comments · Fixed by #24212
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regression: offscreen gl context panic #24206

paulrouget opened this issue Sep 13, 2019 · 5 comments · Fixed by #24212
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@jdm
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A-content/webgl 3d canvas API C-reproduced I-panic Servo encounters a panic.

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@paulrouget
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While running: https://www.joshmatthews.net/webgl-to-webxr/webxr-ar.html

thread '<unnamed>' panicked at 'assertion failed: `(left == right)`
  left: `1280`,
 right: `0`', C:\Users\paul\.cargo\registry\src\github.com-1ecc6299db9ec823\offscreen_gl_context-0.25.0\src\draw_buffer.rs:125:9
@paulrouget paulrouget reopened this Sep 13, 2019
@paulrouget
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I suspect 1cefae7

@jdm
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jdm commented Sep 13, 2019

Is this on Windows? In the HL2 emulator? On device?

@jdm jdm added I-panic Servo encounters a panic. A-content/webgl 3d canvas API labels Sep 13, 2019
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jdm commented Sep 13, 2019

Apparently check_framebuffer_status is causing a GL error to appear: https://github.com/servo/rust-offscreen-rendering-context/blob/317efd913e52228176155280b7d5a29d5591d1f0/src/draw_buffer.rs#L123-L126

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jdm commented Sep 13, 2019

I'll see if I can reproduce this today.

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jdm commented Sep 13, 2019

More specifically, it's coming from https://github.com/servo/rust-offscreen-rendering-context/blob/317efd913e52228176155280b7d5a29d5591d1f0/src/draw_buffer.rs#L247-L250 and I'm not yet sure why.

@jdm jdm closed this as completed Sep 13, 2019
@jdm jdm reopened this Sep 13, 2019
@jdm jdm mentioned this issue Sep 13, 2019
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@jdm jdm self-assigned this Sep 13, 2019
bors-servo pushed a commit that referenced this issue Sep 13, 2019
Auto merge of #24212 - jdm:sparkleup, r=asajeffrey
a43e25c 
Update sparkle for GLES fix.

- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #24206
- [x] These changes do not require tests because no GLES tests on CI.

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Update sparkle for GLES fix. jdm/servo
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