When using 'vector-effect' on an svg text element with a stroke applied the text is not filled properly at certain scales
Reported by
jmwol...@gmail.com,
Sep 5
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Issue description
Chrome Version : 68.0.3440.106
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
URLs (if applicable) :
Other browsers tested:
Add OK or FAIL after other browsers where you have tested this issue:
Safari:
Firefox:OK
IE/Edge:OK
What steps will reproduce the problem?
1. Create an svg with a g and text element e.g. <svg><g transform="scale(4)"><text><title>scale:4</title>ijr</text></g></svg>
2. Apply these styles to the text element
font-family: helvetica;
font-size:50px;
stroke-width: 2px;
stroke: black;
vector-effect: non-scaling-stroke;
fill: gray;
3. Set a scale of 4 to the parent g element
What is the expected result?
All letter should be filled with no white gaps.
What happens instead of that?
Note that the dots above the i and j are not properly filled. Also the bottom arc of the 'r' exhibits a similar issue albeit to a lesser extent
UserAgentString: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36
I have attach a test page showing this behaviour at different scaling levels.
,
Sep 6
I've carried out some additional testing. It is possible to introduce artifacts without scaling or the vector-effect property. At certain font-sizes the same thing happens. I have updated the test html to illustrate this. Scroll to the bottom of the test page.
,
Sep 6
Thanks for filing the issue! Able to reproduce the issue on reported chrome version 68.0.3440.106, latest stable 69.0.3497.81 and on the latest canary 71.0.3544.0 using Windows 7 and Windows 10. As the issue is seen from M60(60.0.3112.0) considering it as Non-Regression and marking it as Untriaged. Requesting someone from respective team to have a look into this and help in further triaging it.
,
Sep 6
++Same issue isn't seen on Ubuntu 14.04 and Mac 10.13.1
,
Sep 6
Reminds me of issue 478384 (and possibly issue 820955.)
,
Sep 6
The example of the clipped "r" in the second test case (comment #2) is the same issue as crbug.com/820955. I can't reproduce the fill problems on Win 10. Could you please provide a screen shot? Test team, could you also provide a screen shot? In particular, did you reproduce the fill issues or the clipped letter?
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Sep 7
The only fill issue I see on Win 10 is with the leftmost "dot" on the i, at 75% zoom. I suspect this is GPU or screen resolution dependent. or maybe version dependent. vamshi.kommuri@, still waiting to see what you managed to reproduce. Could you please navigate to chrome://gpu and paste the output here?
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Sep 10
jmwollny@, do you have access to any other machine to test on? The fill issue is looking more like a GPU or font issue and understanding how it reproduces across devices would be helpful.
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Sep 12
This is the output from 'chrome://gpu' on my win7 machine, which exhibits the problem. Graphics Feature Status Canvas: Hardware accelerated 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 Out-of-process Rasterization: Disabled Hardware Protected Video Decode: Unavailable Rasterization: Hardware accelerated Skia Deferred Display List: Disabled Skia Renderer: Disabled 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_accelerated_vpx_decode disable_delayed_copy_nv12 disable_direct_composition disable_discard_framebuffer disable_dxgi_zero_copy_video disable_framebuffer_cmaa disable_larger_than_screen_overlays exit_on_context_lost force_cube_complete msaa_is_slow scalarize_vec_and_mat_constructor_args texsubimage_faster_than_teximage Problems Detected Protected video decoding with swap chain is for Windows and Intel only Disabled Features: protected_video_decode 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: 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 ANGLE crash on glReadPixels from incomplete cube map texture: 518889 Applied Workarounds: force_cube_complete On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565 Applied Workarounds: msaa_is_slow Framebuffer discarding can hurt performance on non-tilers: 570897 Applied Workarounds: disable_discard_framebuffer Direct composition flashes black initially on Win <10: 588588 Applied Workarounds: disable_direct_composition Zero copy DXGI video hangs on shutdown on Win < 8.1: 621190 Applied Workarounds: disable_dxgi_zero_copy_video Use GL_INTEL_framebuffer_CMAA on ChromeOS: 535198 Applied Workarounds: disable_framebuffer_cmaa Disable KHR_blend_equation_advanced until cc shaders are updated: 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: 634519 Applied Workarounds: decode_encode_srgb_for_generatemipmap VPx decoding isn't supported well before Windows 10 creators update.: 616318, 667532 Applied Workarounds: disable_accelerated_vpx_decode Accelerated VPx decoding is hanging on some videos.: 654111 Applied Workarounds: disable_accelerated_vpx_decode Overlay sizes bigger than screen aren't accelerated on some Intel drivers: 720059 Applied Workarounds: disable_larger_than_screen_overlays Delayed copy NV12 crashes on Intel on Windows <= 8.1.: 727216 Applied Workarounds: disable_delayed_copy_nv12 Don't expose disjoint_timer_query extensions to WebGL: 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 Skia renderer is not used by default. Disabled Features: skia_renderer Skia deferred display list is not used by default. Disabled Features: skia_deferred_display_list Version Information Data exported 2018-09-12T08:53:52.725Z Chrome version Chrome/69.0.3497.81 Operating system Windows NT 6.1.7601 SP1 Software rendering list URL https://chromium.googlesource.com/chromium/src/+/032b3ca19e9af20182f9bd03deefc0faf4695558/gpu/config/software_rendering_list.json Driver bug list URL https://chromium.googlesource.com/chromium/src/+/032b3ca19e9af20182f9bd03deefc0faf4695558/gpu/config/gpu_driver_bug_list.json ANGLE commit id 6ffc489d4f18 2D graphics backend Skia/69 e110fd1ebd2d559838c49a8821ebf18986bd6ec2- Command Line "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --flag-switches-begin --flag-switches-end Driver Information Initialization time 88 In-process GPU false Passthrough Command Decoder true Sandboxed true GPU0 VENDOR = 0x8086, DEVICE= 0x0416 *ACTIVE* GPU1 VENDOR = 0x10de, DEVICE= 0x0ff6 GPU2 VENDOR = 0x0000, DEVICE= 0x000d Optimus false AMD switchable false Desktop compositing Aero Glass Direct Composition false Supports overlays false Overlay capabilities Diagonal Monitor Size of \\.\DISPLAY1 15.5" Driver D3D12 feature level Not supported Driver Vulkan API version Not supported Driver vendor Intel Corporation Driver version 10.18.10.3412 Driver date 1-29-2014 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 (Intel(R) HD Graphics Family Direct3D11 vs_5_0 ps_5_0) GL_VERSION OpenGL ES 2.0 (ANGLE 2.1.0.6ffc489d4f18) GL_EXTENSIONS GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_explicit_context GL_ANGLE_explicit_context_gles1 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_KHR_parallel_shader_compile 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 OES_compressed_EAC_R11_signed_texture OES_compressed_EAC_R11_unsigned_texture OES_compressed_EAC_RG11_signed_texture OES_compressed_EAC_RG11_unsigned_texture OES_compressed_ETC2_RGB8_texture OES_compressed_ETC2_RGBA8_texture OES_compressed_ETC2_punchthroughA_RGBA8_texture OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture OES_compressed_ETC2_sRGB8_alpha8_texture OES_compressed_ETC2_sRGB8_texture 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: 00000000000106f9) Window system binding version 1.4 (ANGLE 2.1.0.6ffc489d4f18) 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_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_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 1536x864], workarea=[0,0 1536x834], scale=1.25, external. Color space information {primaries_d50_referred: [[0.6099, 0.3350], [0.3601, 0.5859], [0.1605, 0.0681]], transfer:0.0636*x + 0.0000 if x < 0.1250 else (0.9548*x + 0.0434)**2.2838 + -0.0079, matrix:RGB, range:FULL} Bits per color component 8 Bits per pixel 24 Video Acceleration Information Decode h264 baseline up to 1920x1088 pixels Decode h264 main up to 1920x1088 pixels Decode h264 high up to 1920x1088 pixels 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 11 dwHeight 1080 dwRefreshRate 60 dwWHQLLevel 0 dwWidth 1920 iAdapter 0 lDriverSize 19380224 lMiniVddSize 0 szAGPStatusEnglish Enabled szAGPStatusLocalized Enabled szChipType Intel(R) HD Graphics Family szD3DStatusEnglish Enabled szD3DStatusLocalized Enabled szDACType Internal szDDIVersionEnglish 11 szDDIVersionLocalized 11 szDDStatusEnglish Enabled szDDStatusLocalized Enabled szDXVAHDEnglish Supported szDXVAModes ModeMPEG2_A ModeMPEG2_C ModeWMV9_C ModeVC1_C szDescription Intel(R) HD Graphics Family szDeviceId 0x0416 szDeviceIdentifier {D7B78E66-4756-11CF-4E79-1B02BBC2C735} szDeviceName \\.\DISPLAY1 szDisplayMemoryEnglish 1696 MB szDisplayMemoryLocalized 1696 MB szDisplayModeEnglish 1920 x 1080 (32 bit) (60Hz) szDisplayModeLocalized 1920 x 1080 (32 bit) (60Hz) szDriverAssemblyVersion 10.18.10.3412 szDriverAttributes Final Retail szDriverDateEnglish 1/22/2014 23:51:36 szDriverDateLocalized 1/22/2014 11:51:36 PM szDriverLanguageEnglish English szDriverLanguageLocalized English szDriverModelEnglish WDDM 1.1 szDriverModelLocalized WDDM 1.1 szDriverName igdumdim64.dll,igd10iumd64.dll,igd10iumd64.dll,igdumdim32,igd10iumd32,igd10iumd32 szDriverNodeStrongName oem27.inf:IntelGfx.NTamd64.6.1:iHSWM_w7:10.18.10.3412:pci\ven_8086&dev_0416&subsys_221117aa szDriverSignDate szDriverVersion 10.18.0010.3412 szKeyDeviceID Enum\PCI\VEN_8086&DEV_0416&SUBSYS_221117AA&REV_06 szKeyDeviceKey \Registry\Machine\System\CurrentControlSet\Control\Video\{0E70B077-D363-4DC0-9728-2D5C75D205E6}\0000 szManufacturer Intel Corporation szMiniVdd n/a szMiniVddDateEnglish n/a szMiniVddDateLocalized n/a szMonitorMaxRes szMonitorName ThinkPad Display 1920x1080 szNotesEnglish No problems found. szNotesLocalized No problems found. szOverlayEnglish Supported szRankOfInstalledDriver 00E60001 szRegHelpText szRevision szRevisionId 0x0006 szSubSysId 0x221117AA 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 n/a szVendorId 0x8086 Log Messages [221320:31176:0906/110923.985:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(46,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(54,9-58): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them [221320:44488:0906/110924.013:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(35,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(43,9-58): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them [221320:31176:0906/110924.035:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(49,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(57,9-58): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them [221320:44488:0906/110924.075:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(47,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(55,9-58): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them [221320:44488:0906/110931.901:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(29,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(37,9-58): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them [221320:44488:0906/110938.471:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(65,10-34): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(87,10-34): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them GpuProcessHostUIShim: The GPU process exited normally. Everything is okay. [221320:31176:0906/111028.953:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(46,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(54,9-58): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them [221320:178196:0906/120625.870:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(47,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(55,9-58): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them [221320:139712:0906/220809.016:WARNING:ipc_message_attachment_set.cc(49)] : MessageAttachmentSet destroyed with unconsumed attachments: 0/1 [221320:73532:0907/151723.839:WARNING:angle_platform_impl.cc(59)] : compileToBinary(228): C:\fakepath(57,8-56): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them C:\fakepath(65,9-58): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them GpuProcessHostUIShim: The GPU process exited normally. Everything is okay.
,
Sep 24
The NextAction date has arrived: 2018-09-24
,
Sep 24
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Comment 1 by phanindra.mandapaka@chromium.org
, Sep 6