New issue
Advanced search Search tips
Note: Color blocks (like █ or █) mean that a user may not be available. Tooltip shows the reason.

Issue 872292 link

Starred by 1 user
Status: WontFix
Owner:
█ kbr@chromium.org
OOO until 2019-01-24
Closed: Aug 8
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug



Sign in to add a comment

Rendering with signed vertex attributes seems broken on ANGLE's D3D11 backend

Reported by kdmitre...@gmail.com, Aug 8 
UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.1.2 Safari/605.1.15

Steps to reproduce the problem:
1. Go to https://codepen.io/dmikis/full/NByLyL (or use attached test case).

What is the expected behavior?
Gradient with occasional strip of red pixels due to rounding errors.

What went wrong?
Just red canvas.

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: Chrome/67.0.3396.87  Channel: n/a
OS Version: 10
Flash Version: 

about:gpu

Graphics Feature Status
Canvas: Hardware accelerated
CheckerImaging: Enabled
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Software only. Hardware acceleration disabled
Rasterization: Hardware accelerated
Surface Synchronization: Enabled
Video Decode: Hardware accelerated
Viz Service Display Compositor: Disabled
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
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
force_cube_complete
scalarize_vec_and_mat_constructor_args
texsubimage_faster_than_teximage
Problems Detected
Some drivers are unable to reset the D3D device in the GPU process sandbox
Applied Workarounds: exit_on_context_lost
TexSubImage is faster for full uploads on ANGLE
Applied Workarounds: texsubimage_faster_than_teximage
Clear uniforms before first program use on all platforms: (
 http://crbug.com/124764 )
124764, (
 http://crbug.com/349137 )
349137
Applied Workarounds: clear_uniforms_before_first_program_use
Always rewrite vec/mat constructors to be consistent: (
 http://crbug.com/398694 )
398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
ANGLE crash on glReadPixels from incomplete cube map texture: (
http://crbug.com/518889)
518889
Applied Workarounds: force_cube_complete
Framebuffer discarding can hurt performance on non-tilers: (
 http://crbug.com/570897 )
570897
Applied Workarounds: disable_discard_framebuffer
Use GL_INTEL_framebuffer_CMAA on ChromeOS: (
 http://crbug.com/535198 )
535198
Applied Workarounds: disable_framebuffer_cmaa
Disable KHR_blend_equation_advanced until cc shaders are updated: (
http://crbug.com/661715)
661715
Applied Workarounds: disable(GL_KHR_blend_equation_advanced),
disable(GL_KHR_blend_equation_advanced_coherent)
Decode and Encode before generateMipmap for srgb format textures on Windows: (
 http://crbug.com/634519 )
634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Zero-copy DXGI video hangs or displays incorrect colors on AMD drivers: (
http://crbug.com/623029)
623029
Applied Workarounds: disable_dxgi_zero_copy_video
Don't expose disjoint_timer_query extensions to WebGL: (
 http://crbug.com/808744 )
808744
Native GpuMemoryBuffers have been disabled, either via about:flags or command line.
Disabled Features: native_gpu_memory_buffers
Viz service display compositor is not enabled by default.
Disabled Features: viz_display_compositor
Version Information
Data exported 2018-07-23T19:52:37.912Z
Chrome version Chrome/67.0.3396.87
Operating system Windows NT 10.0.17134
Software rendering list URL
https://chromium.googlesource.com/chromium/src/+/878cd31214ac27a3996927cd5c9c138b10c9fc8d/gpu/config/software_rendering_list.json
Driver bug list URL
https://chromium.googlesource.com/chromium/src/+/878cd31214ac27a3996927cd5c9c138b10c9fc8d/gpu/config/gpu_driver_bug_list.json
ANGLE commit id 702006f4a07e
2D graphics backend Skia/67 78b60f4ff13b83da98ae2bca85aaef0a98b61098-
Command Line "C:
\Users\gudvi\AppData\Local\Chromium\Application\chrome.exe
" --flag-switches-begin
--flag-switches-end
Driver Information
Initialization time 134
In-process GPU false
Passthrough Command Decoder true
Direct Composition true
Supports overlays false
Sandboxed true
GPU0 VENDOR = 0x1002, DEVICE= 0x694e
GPU1 VENDOR = 0x8086, DEVICE= 0x591b
Optimus false
AMD switchable false
Desktop compositing Aero Glass
Diagonal Monitor Size of \\.\DISPLAY1 21.4"
DX12 true
Vulkan true
Driver vendor Advanced Micro Devices, Inc.
Driver version 24.20.11021.1000
Driver date 6-7-2018
Pixel shader version 5.0
Vertex shader version 5.0
Max. MSAA samples 8
Machine model name
Machine model version
GL_VENDOR Google Inc.
GL_RENDERER ANGLE (Radeon RX Vega M GL Graphics Direct3D11 vs_5_0 ps_5_0)
GL_VERSION OpenGL ES 2.0 (ANGLE 2.1.0.702006f4a07e)
GL_EXTENSIONS GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit
GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode
GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_request_extension
GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5
GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource
GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_color_buffer_float_rgb
GL_CHROMIUM_color_buffer_float_rgba GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture
GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_half_float GL_EXT_debug_marker
GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth
GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness
GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1
GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_filter_anisotropic
GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage
GL_KHR_debug GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage
GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external
GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint
GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8
GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_float
GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear
GL_OES_texture_npot GL_OES_vertex_array_object
Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Disabled WebGL Extensions EXT_disjoint_timer_query EXT_disjoint_timer_query_webgl2
Window system binding vendor Google Inc. (adapter LUID: 000000000000d181)
Window system binding version 1.4 (ANGLE 2.1.0.702006f4a07e)
Window system binding extensions EGL_EXT_create_context_robustness
EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer
EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer
EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation
EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query
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_get_all_proc_addresses EGL_KHR_stream
EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv
EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture
EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource
EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context
EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays
EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization
EGL_ANGLE_create_context_extensions_enabled
Direct rendering Yes
Reset notification strategy 0x8252
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
R_16 Software only
RG_88 Software only
BGR_565 Software only
RGBA_4444 Software only
RGBX_8888 GPU_READ, SCANOUT
RGBA_8888 GPU_READ, SCANOUT
BGRX_8888 Software only
BGRX_1010102 Software only
RGBX_1010102 Software only
BGRA_8888 Software only
RGBA_F16 Software only
YVU_420 Software only
YUV_420_BIPLANAR Software only
UYVY_422 Software only
Display(s) Information
Info Display[2528732444] bounds=[0,0 1920x1080], workarea=[0,0 1920x1080], scale=1, external.
Color space information {primaries:BT709, transfer:IEC61966_2_1, matrix:RGB, range:FULL}
Bits per color component 8
Bits per pixel 24
Video Acceleration Information
Decode h264 baseline up to 4096x2304 pixels
Decode h264 baseline up to 2304x4096 pixels
Decode h264 main up to 4096x2304 pixels
Decode h264 main up to 2304x4096 pixels
Decode h264 high up to 4096x2304 pixels
Decode h264 high up to 2304x4096 pixels
Encode h264 baseline up to 3840x2176 pixels and/or 30.000 fps
Encode h264 main up to 3840x2176 pixels and/or 30.000 fps
Encode h264 high up to 3840x2176 pixels and/or 30.000 fps
Diagnostics
0
b3DAccelerationEnabled true
b3DAccelerationExists true
bAGPEnabled true
bAGPExistenceValid true
bAGPExists true
bCanRenderWindow true
bDDAccelerationEnabled true
bDriverBeta false
bDriverDebug false
bDriverSigned false
bDriverSignedValid false
bNoHardware false
dwBpp 32
dwDDIVersion 12
dwHeight 1080
dwRefreshRate 59
dwWHQLLevel 0
dwWidth 1920
iAdapter 0
lDriverSize 2026464
lMiniVddSize 0
szAGPStatusEnglish Enabled
szAGPStatusLocalized Enabled
szChipType AMD Radeon Graphics Processor (0x694E)
szD3DStatusEnglish Enabled
szD3DStatusLocalized Enabled
szDACType Internal DAC(400MHz)
szDDIVersionEnglish 12
szDDIVersionLocalized 12
szDDStatusEnglish Enabled
szDDStatusLocalized Enabled
szDXVAHDEnglish Not Supported
szDXVAModes Unknown
szDescription Radeon RX Vega M GL Graphics
szDeviceId 0x694E
szDeviceIdentifier {D7B71EE2-2A0E-11CF-DEE0-7E2B7BC2D535}
szDeviceName \\.\DISPLAY1
szDisplayMemoryEnglish 8098 MB
szDisplayMemoryLocalized 8098 MB
szDisplayModeEnglish 1920 x 1080 (32 bit) (59Hz)
szDisplayModeLocalized 1920 x 1080 (32 bit) (59Hz)
szDriverAssemblyVersion 24.20.11021.1000
szDriverAttributes Final Retail
szDriverDateEnglish 07/06/2018 03:00:00
szDriverDateLocalized 6/7/2018 03:00:00
szDriverLanguageEnglish English
szDriverLanguageLocalized English
szDriverModelEnglish WDDM 2.4
szDriverModelLocalized WDDM 2.4
szDriverName
C:
\Windows\System32\DriverStore\FileRepository\c0329864.inf_amd64_30362ecdbe8aea5e\B329716\aticfx64.dll
,C:
\Windows\System32\DriverStore\FileRepository\c0329864.inf_amd64_30362ecdbe8aea5e\B329716\aticfx64.dll
,C:
\Windows\System32\DriverStore\FileRepository\c0329864.inf_amd64_30362ecdbe8aea5e\B329716\aticfx64.dll
,C:
\Windows\System32\DriverStore\FileRepository\c0329864.inf_amd64_30362ecdbe8aea5e\B329716\amdxc64.dll
szDriverNodeStrongName
oem11.inf
:cb0ae41434afbdfb:ati2mtag_VegaMDS:24.20.11021.1000:pci\ven_1002&dev_694e&subsys_20738086&rev_c0
szDriverSignDate Unknown
szDriverVersion 24.20.11021.1000
szKeyDeviceID Enum\PCI\VEN_1002&DEV_694E&SUBSYS_20738086&REV_C0
szKeyDeviceKey
\Registry\Machine\System\CurrentControlSet\Control\Video\{47C0727B-7576-11E8-A5F0-0C54156731A7}\0000
szManufacturer Advanced Micro Devices, Inc.
szMiniVdd unknown
szMiniVddDateEnglish Unknown
szMiniVddDateLocalized unknown
szMonitorMaxRes Unknown
szMonitorName Generic PnP Monitor
szNotesEnglish No problems found.
szNotesLocalized No problems found.
szOverlayEnglish Not Supported
szRankOfInstalledDriver 00D10000
szRegHelpText Unknown
szRevision Unknown
szRevisionId 0x00C0
szSubSysId 0x20738086
szTestResultD3D7English Not run
szTestResultD3D7Localized Not run
szTestResultD3D8English Not run
szTestResultD3D8Localized Not run
szTestResultD3D9English Not run
szTestResultD3D9Localized Not run
szTestResultDDEnglish Not run
szTestResultDDLocalized Not run
szVdd unknown
szVendorId 0x1002
1
b3DAccelerationEnabled true
b3DAccelerationExists true
bAGPEnabled true
bAGPExistenceValid false
bAGPExists false
bCanRenderWindow false
bDDAccelerationEnabled true
bDriverBeta false
bDriverDebug false
bDriverSigned false
bDriverSignedValid false
bNoHardware false
dwBpp 0
dwDDIVersion 12
dwHeight 0
dwRefreshRate 0
dwWHQLLevel 0
dwWidth 0
iAdapter 0
lDriverSize 1927272
lMiniVddSize 0
szAGPStatusEnglish Enabled
szAGPStatusLocalized Enabled
szChipType Intel(R) HD Graphics Family
szD3DStatusEnglish Enabled
szD3DStatusLocalized Enabled
szDACType Internal
szDDIVersionEnglish 12
szDDIVersionLocalized 12
szDDStatusEnglish Enabled
szDDStatusLocalized Enabled
szDXVAHDEnglish Unknown
szDXVAModes Unknown
szDescription Intel(R) HD Graphics 630
szDeviceId 0x591B
szDeviceIdentifier Unknown
szDeviceName Unknown
szDisplayMemoryEnglish 4183 MB
szDisplayMemoryLocalized 4183 MB
szDisplayModeEnglish Unknown
szDisplayModeLocalized unknown
szDriverAssemblyVersion 23.20.16.4982
szDriverAttributes Final Retail
szDriverDateEnglish 08/03/2018 03:00:00
szDriverDateLocalized 3/8/2018 03:00:00
szDriverLanguageEnglish English
szDriverLanguageLocalized English
szDriverModelEnglish WDDM 2.4
szDriverModelLocalized WDDM 2.4
szDriverName
C:
\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_a86ba86f420fe5ff\igdumdim64.dll
,C:
\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_a86ba86f420fe5ff\igd10iumd64.dll
,C:
\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_a86ba86f420fe5ff\igd10iumd64.dll
,C:
\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_a86ba86f420fe5ff\igd12umd64.dll
szDriverNodeStrongName
oem16.inf:5
f63e53499417f2d:iKBLD_w10_DS:23.20.16.4982:pci\ven_8086&dev_591b
szDriverSignDate Unknown
szDriverVersion 23.20.0016.4982
szKeyDeviceID Enum\PCI\VEN_8086&DEV_591B&SUBSYS_20738086&REV_04
szKeyDeviceKey Unknown
szManufacturer Intel Corporation
szMiniVdd unknown
szMiniVddDateEnglish Unknown
szMiniVddDateLocalized unknown
szMonitorMaxRes Unknown
szMonitorName Unknown
szNotesEnglish No problems found.
szNotesLocalized No problems found.
szOverlayEnglish Unknown
szRankOfInstalledDriver 00D12001
szRegHelpText Unknown
szRevision Unknown
szRevisionId 0x0004
szSubSysId 0x20738086
szTestResultD3D7English Not run
szTestResultD3D7Localized Not run
szTestResultD3D8English Not run
szTestResultD3D8Localized Not run
szTestResultD3D9English Not run
szTestResultD3D9Localized Not run
szTestResultDDEnglish Not run
szTestResultDDLocalized Not run
szVdd unknown
szVendorId 0x8086
Log Messages
GpuProcessHostUIShim: The GPU process exited normally. Everything is okay.
GpuProcessHostUIShim: The GPU process exited normally. Everything is okay.
codepen_NByLyL.zip
2.6 KB Download
5f59d624-f84b-42e2-90c0-5bafc494aea4.png
19.8 KB View Download

Comment 1 by viswa.karala@chromium.org, Aug 8

Labels: Needs-Milestone

Comment 2 by bajones@chromium.org, Aug 8 

Appears to not be restricted to just AMD. Same issue observed on a system with an Nvidia GTX 970. about:gpu results attached.
about_gpu.txt
10.7 KB View Download

Comment 3 by kbr@chromium.org, Aug 8

Components: Internals>GPU>ANGLE
Status: Available (was: Unconfirmed)
Thanks for the report. Is this the same issue for which a WebGL conformance test was added in https://github.com/KhronosGroup/WebGL/pull/2488 ?

If it's different, could you please upload a pull request to the WebGL conformance suite with a reduced test case for this issue?

It's not restricted to the Vega M - also happening with an R7 240 GPU with ANGLE's D3D11 backend. about:gpu attached. With ANGLE's OpenGL backend on the same card, this works correctly. It seems like a bug in the handling of signed vertex attributes in ANGLE's D3D11 backend.
about-gpu.txt
10.7 KB View Download
about-gpu-opengl.txt
10.7 KB View Download

Comment 4 by kbr@chromium.org, Aug 8

Summary: Rendering with signed vertex attributes seems broken on ANGLE's D3D11 backend (was: Rendering with signed vertex attributes seems broken on AMD Vega M)

Comment 5 by jmad...@chromium.org, Aug 8 

I made a test case for this and got:

Warning: syncPrimitiveTopology(3453): Point rendering without writing to gl_PointSize.

Ken this is somewhat undefined. I'm not sure if WebGL defines a nonzero default value for gl_PointSize. Maybe we could define it to be 1.0 if not already set.

Comment 6 by kbr@chromium.org, Aug 8

Owner: kbr@chromium.org
Status: WontFix (was: Available)
Argh. Sorry about this Jamie. I should have looked more closely.

The GLSL ES specification (both 1.0.17 and 3.00.6) state that if gl_PointSize isn't written to, and rendering with points is performed, then its value is undefined. The WebGL spec does not override this.

Synthesizing a "gl_PointSize = 1.0" into the vertex shader is suboptimal, because it's not known ahead of time whether a given program is intended to be used for rendering points or some other primitive. I believe we have seen problems in the past attempting to initialize this variable to 1.0 and then drawing other primitives like lines or triangles. This is why WebGL doesn't define this default.

Confirmed that changing the CodePen to set "gl_PointSize = 1.0" at the end of the vertex shader makes this example render correctly on Windows. Closing as WontFix - not a bug. Submitter, sorry but you will have to update your shaders.
►

Sign in to add a comment