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Issue 752791 link

Starred by 5 users
Status: Verified
Owner: ----
Closed: Aug 2017
Cc:
█ abdulsyed@chromium.org
█ kbr@chromium.org
kainino@chromium.org
sugoi@chromium.org
█ manoranj...@chromium.org
vmi...@chromium.org
█ bustamante@chromium.org
capn@chromium.org
senorblanco@chromium.org
xinghua....@intel.com
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug-Regression


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Severe rendering glitches when hardware acceleration is disabled

Reported by k...@luminance.org, Aug 6 2017 
UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0

Example URL:
http://game.granbluefantasy.jp/#quest/index

Steps to reproduce the problem:
1. Visit provided URL while logged into a Granblue Fantasy account
2. Move your mouse around the browser chrome (address bar, toolbar buttons etc) to cause it to repaint

What is the expected behavior?
Everything should look normal

What went wrong?
The compositor loses its mind and rasterizes portions of the scene with channels missing (i.e. blue only) and periodically shows pixels from 1-3 frames prior instead of the current frame. Video attached.

Did this work before? Yes Yesterday. Not sure how to tell what version I had installed then.

Is it a problem with Flash or HTML5? HTML5

Does this work in other browsers? Yes

Chrome version: 60.0.3112.90 (Official Build) (64-bit) (cohort: 60_90_win)  Channel: stable
OS Version: 10.0
Flash Version: 

Contents of chrome://gpu: 
Graphics Feature Status
Canvas: Software only, hardware acceleration unavailable
CheckerImaging: Disabled
Flash: Software only, hardware acceleration unavailable
Flash Stage3D: Software only, hardware acceleration unavailable
Flash Stage3D Baseline profile: Software only, hardware acceleration unavailable
Compositing: Software only, hardware acceleration unavailable
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Software only. Hardware acceleration disabled
Rasterization: Software only, hardware acceleration unavailable
Video Decode: Software only, hardware acceleration unavailable
Video Encode: Software only, hardware acceleration unavailable
WebGL: Hardware accelerated but at reduced performance
WebGL2: Unavailable
Driver Bug Workarounds
clear_uniforms_before_first_program_use
decode_encode_srgb_for_generatemipmap
disable_discard_framebuffer
disable_dxgi_zero_copy_video
disable_framebuffer_cmaa
exit_on_context_lost
scalarize_vec_and_mat_constructor_args
Problems Detected
GPU rasterization should only be enabled on NVIDIA and Intel DX11+, and AMD RX-R2 GPUs for now.: 643850
Disabled Features: gpu_rasterization
Some drivers are unable to reset the D3D device in the GPU process sandbox
Applied Workarounds: exit_on_context_lost
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Framebuffer discarding can hurt performance on non-tilers: 570897
Applied Workarounds: disable_discard_framebuffer
Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198
Applied Workarounds: disable_framebuffer_cmaa
Zero-copy NV12 video displays incorrect colors on NVIDIA drivers.: 635319
Applied Workarounds: disable_dxgi_zero_copy_video
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Decode and Encode before generateMipmap for srgb format textures on Windows: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Native GpuMemoryBuffers have been disabled, either via about:flags or command line.
Disabled Features: native_gpu_memory_buffers
Checker-imaging has been disabled via finch trial or the command line.
Disabled Features: checker_imaging
Version Information
Data exported	8/5/2017, 11:42:34 PM
Chrome version	Chrome/60.0.3112.90
Operating system	Windows NT 10.0.15063
Software rendering list version	13.8
Driver bug list version	10.93
ANGLE commit id	3e6a61fecba9
2D graphics backend	Skia/60 d1f2d15b36f6a6a9d199581b998a7ca924a1f1a8-
Command Line	chrome.exe --windows10-custom-titlebar --disable-hang-monitor --proxy-server=https://tokyo.luminance.org:3000 --proxy-bypass-list=127.0.0.1;localhost;203.104.248.5;game-a.granbluefantasy.jp;game-a1.granbluefantasy.jp;game-a2.granbluefantasy.jp;game-a3.granbluefantasy.jp;game-a4.granbluefantasy.jp;game-a5.granbluefantasy.jp --flag-switches-begin --flag-switches-end
Driver Information
Initialization time	0
In-process GPU	true
Passthrough Command Decoder	false
Supports overlays	false
Sandboxed	false
GPU0	VENDOR = 0x10de, DEVICE= 0x1b80
Optimus	false
Optimus	false
AMD switchable	false
Desktop compositing	Aero Glass
Diagonal Monitor Size of \\.\DISPLAY2	26.9"
Diagonal Monitor Size of \\.\DISPLAY1	27.0"
Driver vendor	Google Inc.
Driver version	3.3.0.2
Driver date	2017/04/07
Pixel shader version	3.0
Vertex shader version	3.0
Max. MSAA samples	4
Machine model name	
Machine model version	
GL_VENDOR	Google Inc.
GL_RENDERER	Google SwiftShader
GL_VERSION	OpenGL ES 2.0 SwiftShader
GL_EXTENSIONS	
Disabled Extensions	GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Window system binding vendor	
Window system binding version	
Window system binding extensions	
Direct rendering	Yes
Reset notification strategy	0x0000
GPU process crash count	0
Compositor Information
Tile Update Mode	One-copy
Partial Raster	Enabled
GpuMemoryBuffers Status
ATC	Software only
ATCIA	Software only
DXT1	Software only
DXT5	Software only
ETC1	Software only
R_8	Software only
RG_88	Software only
BGR_565	Software only
RGBA_4444	Software only
RGBX_8888	Software only
RGBA_8888	Software only
BGRX_8888	Software only
BGRA_8888	Software only
RGBA_F16	Software only
YVU_420	Software only
YUV_420_BIPLANAR	Software only
UYVY_422	Software only
Diagnostics
... loading ...
Log Messages
[13784:5564:0805/234156.725:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.755:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.762:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.783:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.812:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.830:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.851:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.884:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.895:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.916:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.951:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.960:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234156.984:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234157.109:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234157.112:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234157.646:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234157.762:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234158.029:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234158.179:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234158.312:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.044:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.106:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.145:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.162:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.179:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.213:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.228:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.245:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.279:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.295:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.312:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.361:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.429:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.611:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.834:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.846:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.877:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.895:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.912:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.946:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.962:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234159.978:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.015:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.030:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.045:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.091:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.096:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.112:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.145:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.161:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.179:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.211:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.229:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.245:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.279:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.296:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.311:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.346:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.362:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.379:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.415:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.429:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.444:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.478:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.495:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.512:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.546:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.562:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.579:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.611:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.629:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.646:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.679:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.696:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.711:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.745:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.762:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.779:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.812:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.844:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.877:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.895:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.911:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.961:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234200.977:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.077:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.095:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.111:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.154:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.161:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.178:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.212:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.245:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.294:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.313:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.347:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.362:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.379:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.412:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.428:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.444:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.479:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.512:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.546:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.561:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.578:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.612:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.628:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.644:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.677:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.827:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.909:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.915:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.953:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.960:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234201.977:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.079:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.095:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.112:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.144:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.162:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.179:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.212:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.228:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.245:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.278:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.294:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.362:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.377:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.437:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.445:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.496:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.511:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.545:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.562:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.578:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.616:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.629:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.644:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.680:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.696:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.713:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.747:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.762:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.780:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.814:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.828:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.845:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.880:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.895:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.912:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.945:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.961:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234202.979:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.013:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.029:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.046:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.079:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.094:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.113:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.146:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.162:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.178:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.214:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.228:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.245:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.278:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.294:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.311:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.344:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.360:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.378:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.446:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.479:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.498:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.511:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.548:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.564:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.579:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.612:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.629:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.645:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.678:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.695:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.711:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.745:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.761:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.777:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.811:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.846:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.895:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.912:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.958:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.961:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234203.981:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.025:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.030:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.045:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.077:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.096:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.146:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.161:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.177:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.244:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.279:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.294:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.312:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.366:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.377:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.429:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.445:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.478:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.496:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.512:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.547:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.562:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.578:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.623:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.631:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.645:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.678:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.695:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.711:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.744:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.760:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.777:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.810:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.827:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.844:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.913:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.955:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.962:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234204.977:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.023:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.027:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.045:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.077:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.094:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.110:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.144:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.160:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.177:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.210:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.226:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.244:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.277:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.294:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.311:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.344:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.360:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.377:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.411:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.427:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234205.445:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234225.711:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234225.881:ERROR:gles2_cmd_decoder.cc(11775)] : [.Offscreen-For-WebGL-000001BA7ACB75A0]GL ERROR :GL_INVALID_OPERATION : glReadPixels:
[13784:5564:0805/234226.145:ERROR:logger.cc(46)] : Too many GL errors, not reporting any more for this context. use --disable-gl-error-limit to see all errors.
GpuProcessHostUIShim: The GPU process exited normally. Everything is okay.

This works perfectly with hardware acceleration on, but I can't use hwaccel due to compatibility issues with Chrome and other software like OBS. So it's a bug in software rasterization, somehow?

The glitches only appear to affect Canvas2D content - the flickering is all in an area that is backed by a canvas element. The HTML/DOM parts of the viewport render correctly.
flicker.mp4
1.2 MB View Download

Comment 1 by k...@luminance.org, Aug 6 2017 

If I right-click 'Inspect' an element, as long as the devtools inspector's element highlight is visible, the entire canvas constantly freaks out, flickering rapidly between blue and red. Screenshot of it on the (incorrect) blue attached. So it seems like the canvas itself is probably being rasterized correctly but the compositing is doing the wrong thing.
Screenshot 2017-08-05 23.47.47.png
839 KB View Download

Comment 2 by k...@luminance.org, Aug 6 2017 

There is a CSS animation playing on the page directly below the canvas (the red flashing 'raid' button). If I use devtools to delete it, the flickering does not occur anymore in response to movement over the browser chrome and canvas.

However, summoning the overlay from devtools still produces flickering. Why this doesn't apply to the elements already overlapping the canvas isn't clear to me.

Comment 3 by k...@luminance.org, Aug 7 2017 

If I start Chrome using the additional command line flags '--disable-gpu-sandbox --disable-gpu --disable-software-rasterizer' to make the GPU process go away, the flickering disappears also.

Comment 4 by krajshree@chromium.org, Aug 7 2017

Labels: Needs-Triage-M60

Comment 5 by pbomm...@chromium.org, Aug 7 2017

Cc: kbr@chromium.org
Components: Internals>GPU

Comment 6 by kbr@chromium.org, Aug 7 2017

Cc: sugoi@chromium.org
Owner: capn@chromium.org
capn@: could you please triage this? Sounds like a SwiftShader integration bug that was already fixed. Thanks.

Comment 7 by capn@chromium.org, Aug 8 2017

Cc: capn@chromium.org kainino@chromium.org xinghua....@intel.com
Labels: -Pri-2 -Needs-Triage-M60 M-60 ReleaseBlock-Stable Pri-1
Owner: ----
Status: Available (was: Unconfirmed)
This is  Issue 725579 . Shadertoy.com has wildly flickering red/blue with --disable-gpu as reported in that issue. Apparently the fix didn't make it into the recently released M60 Stable.

Comment 8 by capn@chromium.org, Aug 8 2017

Cc: vmi...@chromium.org bustamante@chromium.org
Components: Blink>WebGL Blink>Canvas Blink>Compositing

Comment 9 by dalecur...@chromium.org, Aug 8 2017 

If this is fixed by that issue, shouldn't this be duped?

Comment 10 by pbomm...@chromium.org, Aug 8 2017

Cc: manoranj...@chromium.org

Comment 11 by pbomm...@chromium.org, Aug 8 2017 

cc'ing richard and Mano

Comment 12 by schenney@chromium.org, Aug 8 2017

Components: -Blink>Compositing Internals>Compositing

Comment 13 by capn@chromium.org, Aug 8 2017

Cc: senorblanco@chromium.org

Comment 14 by manoranj...@chromium.org, Aug 10 2017

Cc: abdulsyed@chromium.org
capn@, Would it be possible to merge the respective CL to M60 stable branch (#3112) if it is safe? So that this fix would be there for next stable release?

Please let us know your thoughts.

Thank you!

Comment 15 by capn@chromium.org, Aug 10 2017 

manoranjanr@, the fix for  Issue 725579  was in M59 stable, so I have high confidence in it and I support having it merged into M60 stable for the next release.

Comment 16 by manoranj...@chromium.org, Aug 10 2017 

capn@, thank you for the quick update. Please request a merge and release manager will take it forward.

Comment 17 by capn@chromium.org, Aug 10 2017

Labels: Merge-Request-60
For your convenience:

git drover --branch 3112 --cherry-pick f4f805f9fb47f434766195909c50a46b484ffdbb

Comment 18 by bustamante@google.com, Aug 10 2017

Labels: -Merge-Request-60 Merge-Approved-60
Approving for merge into M60

Comment 19 by gov...@chromium.org, Aug 10 2017 

Is this require a merge to M61? If yes, please request. Thank you.

Comment 20 by mmoss@chromium.org, Aug 10 2017

Labels: -Merge-Approved-60 Merge-Merged
Merged to M60:
https://chromium.googlesource.com/chromium/src/+/33e2e848ee23a2d32462733a891f7274ac2290c0

Comment 21 by capn@chromium.org, Aug 10 2017

Status: Fixed (was: Available)
Thanks Michael!

I'm doing a local build of branch 3112 to verify.

The initial patch landed before M61 branched, so no other merges are required: https://storage.googleapis.com/chromium-find-releases-static/f4f.html#f4f805f9fb47f434766195909c50a46b484ffdbb

Comment 22 by gov...@chromium.org, Aug 10 2017 

Thank you  capn@ for confirming no M61 merge is needed.

Comment 23 by capn@chromium.org, Aug 11 2017 

60.0.3112.98 doesn't build:

c:\src\chromium\src\cc\tiles\gpu_image_decode_cache.cc(1157): error C2660: 'SkImage::getDeferredTextureImageData': function does not take 6 arguments

This is not due to the cherry-pick from this issue. 60.0.3112.98 appears to be the last successful build. I assume this is being looked into already? I'll continue verifying the fix for this issues once we have a new build.

Comment 24 by manoranj...@chromium.org, Aug 11 2017 

There is 60.0.3112.101 at https://goto.google.com/hxawi

Comment 25 by capn@chromium.org, Aug 11 2017 

Ah, thanks! I was watching the folder for 60.0.3112, but the 101 build appeared at the top instead of the bottom. 8-)

It's odd that it doesn't build locally, neither on my Linux nor Windows workstation. Anyway, I'll test that archive build.

Comment 26 by capn@chromium.org, Aug 11 2017

Status: Verified (was: Fixed)
►

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