105694 2012-12-23 11:09:54 -0800 [chromium] Bottom part of non-square glyphs in upright are cut off in vertical flow 2013-03-13 08:18:41 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) PC Windows 7 RESOLVED FIXED P2 Normal --- 1 kojii takao dominicc efidler syoichi takao xz911jp oldest_to_newest 796789 0 kojii 2012-12-23 11:09:54 -0800 When writing-mode:vertical-rl; text-orientation:upright is specified, and when system fallback font is used or self/sanserif is used, font advance is incorrect, and characters overlaps each other. 806095 1 182510 kojii 2013-01-13 22:46:24 -0800 Created attachment 182510 Test flie: the bottom part is cut off in some glyphs in vertical flow 806096 2 182511 kojii 2013-01-13 22:49:33 -0800 Created attachment 182511 Test file current result 806098 3 kojii 2013-01-13 22:55:23 -0800 As I created a test file, I found the issue assessment was incorrect. The issue is, when non-square glyphs are drawn, the bottom part of glyphs are cut off in certain size. Please see the attached test file and the current result image. As far as I tested, this issue occurs with MS PGothic 12pt and 14pt. Setting to different size, or using MS Gothic (which all of its glyphs are square) solve the issue. The bad part is that, MS PGothic is the default Japanese font, Chromium automatically choose it for sans-serif, and 12pt and 14pt are pretty common use cases. 806135 4 kojii 2013-01-14 00:56:53 -0800 Another test example is at http://epub.nomaki.jp/121217/test-006.html 810164 5 takao 2013-01-17 20:26:13 -0800 I will work for fixing this bug. Could you assign to me? 840868 6 takao 2013-02-25 04:32:11 -0800 I found out what's wrong is skia, not WebKit. The bug can be fixed by modifying skia code, should I report detail to skia group rather than here? 844806 7 takao 2013-02-28 21:57:31 -0800 I reported to skia group: Issue 1138 - skia - Some TTF embedded bitmaps are drawn incompletely https://code.google.com/p/skia/issues/detail?id=1138 848426 8 takao 2013-03-05 20:46:31 -0800 (In reply to comment #4) > Another test example is at http://epub.nomaki.jp/121217/test-006.html It does not seems same as the original matter. Should be managed on new report. 853024 9 takao 2013-03-11 20:05:37 -0700 skia has been fixed in r8069. https://code.google.com/p/skia/source/detail?r=8069 Chromium DEPS will be updated shortly. 182510 2013-01-13 22:46:24 -0800 2013-01-13 22:46:24 -0800 Test flie: the bottom part is cut off in some glyphs in vertical flow wk105694.html text/html 656 kojii 77u/PCFET0NUWVBFIGh0bWw+DQo8aHRtbCBsYW5nPSJlbiIgeG1sbnM9Imh0dHA6Ly93d3cudzMu b3JnLzE5OTkveGh0bWwiPg0KPGhlYWQ+DQogICAgPG1ldGEgY2hhcnNldD0idXRmLTgiIC8+DQog ICAgPHRpdGxlPjwvdGl0bGU+DQogICAgPHN0eWxlIHR5cGU9InRleHQvY3NzIj4NCmh0bWwgew0K ICAgIC13ZWJraXQtd3JpdGluZy1tb2RlOiB2ZXJ0aWNhbC1ybDsNCiAgICBsaW5lLWhlaWdodDox LjZlbTsNCiAgICBmb250LXNpemU6IDE0cHQ7DQp9DQpwIHsNCiAgICBmb250LXNpemU6IDFlbTsN Cn0NCiAgICA8L3N0eWxlPg0KPC9oZWFkPg0KPGJvZHk+DQogICAgPHAgc3R5bGU9ImZvbnQtZmFt aWx5OidNUyBHb3RoaWMnIj7jgrPjg6njgrPjg6njgrPjg6k8L3A+DQogICAgPHAgc3R5bGU9ImZv bnQtZmFtaWx5OidNUyBQR290aGljJyI+44Kz44Op44Kz44Op44Kz44OpPC9wPg0KICAgIDxwIHN0 eWxlPSJmb250LWZhbWlseTpzZXJpZiI+44Kz44Op44Kz44Op44Kz44OpPC9wPg0KICAgIDxwIHN0 eWxlPSJmb250LWZhbWlseTpzYW5zLXNlcmlmIj7jgrPjg6njgrPjg6njgrPjg6k8L3A+DQogICAg PHAgc3R5bGU9ImZvbnQtZmFtaWx5OmZvbnQtdGhhdC1uZXZlci1leGlzdHMiPuOCs+ODqeOCs+OD qeOCs+ODqTwvcD4NCjwvYm9keT4NCjwvaHRtbD4= 182511 2013-01-13 22:49:33 -0800 2013-01-13 22:49:33 -0800 Test file current result wk105694.png image/png 1225 kojii iVBORw0KGgoAAAANSUhEUgAAAOMAAACICAYAAAAVvVzVAAAAAXNSR0IArs4c6QAAAARnQU1BAACx jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAReSURBVHhe7dnRbttKDEXR/P9P90IQjGsU7NiO ac+hsBbAV4Uz8k5c9OcPEEGMEEKMEEKMEEKMEEKMEEKMEEKMEEKMEOJhjD8/Py9Ngmqv1aSqdl1N kmq/1fBEjK+YeKlX+SBMPocYT2IU43ZiPIlRjNuJ8SRGMW6XuPux0yvTofUWupb6pok7VyafY/o7 EGMTMe4nxlPrLYhxHzHuI8YmYtxPjKdrfBJhIzFCCDFCCDFCCDFCiK/GePywZyZJtV816aqdq0lU 7VlNomrP1XTI/zRCODHCxYgRQjyM8e/vxo8mQbXXalJVu64mSbXfangixldMvNSrfBAmn0OMJzGK cTsxnsQoxu1Sdz/2ema6tD2pc6lvmbhzZfI5rvIOOojxAsR4DS03IcR9hHgdb9+GEPcR4ucc+70y HX79lM4lvmXizpXJ57jKO7jXdZ6XnnK7yEmXOXHnyuRzTN79GV3nuubtwBeJEQJ0/rUXI7xBjBCg +9/AD592/MBXJkG112pSVbuuJkm132qm+cTOrU90qftMPsek3Y9dP7Vv61MnfiAmf4jvTT5H+u7H frf5pNanT/xATNy5MvkcV3kH7xKjGLcT40mMYtxOjCcxinE7MZ7EKMbtxHgSoxi3E+PJLUAIMULh +Gv9ynQQI7xJjBDiqzHe/zleTZJqv2rSVTtXk6jas5rpus4w/yZgMzFCCDFCiK/FePygVyZBtddq UlW7riZJtd9qJuvav/UWJl7q9A/CzeRziPHUegti3EeM+4ixiRj3S9z92OmV6dB2C10LfdPEnSuT z3GFdyDGBmLc7yrvoEPLTQhxHyFex9u3IcR9hHgtv76R4zKnXejEnSuTz3GVd/AJL93K7SInXebE nSuTzzF5929yO/AP979EVtNFjBBCjBBCjBDiYYzVd+TVJKj2Wk2qatfVJKn2W02aasfVdGi9ha6l vmnizpXJ55j+DsTYRIz7ifHUegti3EeM+4ixiRj3s/up9RbEuI8P9B5ibCTG/abu3r1369PEuI8Y v+sTO7c+0aXuI8bvOHb91L7X+CTCB90C/PQvDTFCCDFCCDFCiKdivP/OvJok1X7VpKt2riZRtWc1 nNwEhBAjhBAjhHgYY/UdfzUJqr1Wk6radTVJqv1Wk6bacTUdWm+ha6lvmrhzZfI5pr8DMTYR435i PLXeghj3EeM+cTEKcR8h7iXGBmLcT4z/a3mKEPcR4n4xMQpxHyFm2B7jscC0C524c2XyOa7yDu51 neelp9wuctJlTty5Mvkck3d/Rte5rnk78Kb7XyDPTAcxwpvECBcjRgghRgghRgghRgghRviHv//7 4l/TRYwQQowQQowQQoxQqP5tuJoOYoQ3iRFCiBFCiBECdIV4ECO8QYwQoDPEgxjhF7pDPIgRXnBE +IkQD2KEB24BfirCGzFCCDFCCDFCCDFCCDFCCDFCCDFCCDFCCDFCCDFCCDFCCDFCCDFCCDFCCDFC CDFChD9//gPMQqcnY3+66QAAAABJRU5ErkJggg==