85299 2012-05-01 11:38:05 -0700 [GTK] Remove the GDK dependency from ImageDiff 2017-04-10 04:48:32 -0700 1 1 1 Unclassified WebKit WebKitGTK 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=151261 P2 Normal --- 170608 1 mrobinson jdapena bugs-noreply buildbot cgarcia clopez d-r gustavo jdapena philn webkit.review.bot xan.lopez zan oldest_to_newest 613561 0 mrobinson 2012-05-01 11:38:05 -0700 ImageDiff should be rewritten so that it doesn't depend on GDK, only Cairo and GLib. This will allow it to run without an X11 server. 613562 1 mrobinson 2012-05-01 11:38:19 -0700 See also: https://bugs.webkit.org/show_bug.cgi?id=85292 733700 2 166893 jdapena 2012-10-03 07:55:04 -0700 Created attachment 166893 Patch 733802 3 d-r 2012-10-03 09:59:52 -0700 Maybe we can completely share it between EFL and GTK then. 733809 4 mrobinson 2012-10-03 10:08:34 -0700 And perhaps even WinCairo. 734615 5 167082 jdapena 2012-10-04 05:42:33 -0700 Created attachment 167082 Patch 735043 6 167082 mrobinson 2012-10-04 14:59:10 -0700 Comment on attachment 167082 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=167082&action=review Okay. This seems like a good first step. The next one is to remove the GLib dependency and to start sharing this code with EFL and maybe even WinCairo. A few nits follow. > Tools/DumpRenderTree/gtk/ImageDiff.cpp:46 > +cairo_status_t cairoStdinReader(void *closure, unsigned char* data, unsigned length) Nit: The asterisk for closure are in the wrong place here. > Tools/DumpRenderTree/gtk/ImageDiff.cpp:48 > + int* pendingImageSize = reinterpret_cast<int*>(closure); I think this should be static_cast instead of reinterpret_cast. > Tools/DumpRenderTree/gtk/ImageDiff.cpp:49 > + if (*pendingImageSize > 0) { You should use an early return here: if (*pendingImageSize <= 0) return CAIRO_STATUS_SUCCESS; > Tools/DumpRenderTree/gtk/ImageDiff.cpp:50 > + size_t bytesToRead = min<int>(*pendingImageSize, length); Probably you should use min<size_t> since I think using min<int> will cast length to a signed integer. > Tools/DumpRenderTree/gtk/ImageDiff.cpp:166 > + GArray* array = reinterpret_cast<GArray*>(closure); You should be able to use static_cast here. > Tools/DumpRenderTree/gtk/ImageDiff.cpp:173 > + GArray* array = g_array_new(false, false, 1); Since g_array_new takes gboolean instead of bool, it's slightly more correct to write FALSE here. 814190 7 184229 jdapena 2013-01-23 07:34:18 -0800 Created attachment 184229 Patch Removed glib dependency, now we depend only on Cairo 814211 8 184229 rakuco 2013-01-23 07:56:41 -0800 Comment on attachment 184229 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=184229&action=review This looks promising, it would be really cool to share an ImageDiff implementation across multiple ports. I have added a few nitpicks for things which were there before your change, so feel free to ignore them. One other thing I'd like to point out if we really move towards sharing ImageDiff is that EFL's calculateDifference() implementation more readable with the use of OwnPtrs and smaller helper functions. > Tools/ImageDiff/cairo/ImageDiff.cpp:137 > + *currentDiffPixel++ = (unsigned char)(distance * 255.0f); C-style cast. > Tools/ImageDiff/cairo/ImageDiff.cpp:181 > + fwrite(data, 1, dataLength, stdout); I find it easier to read if you swap the second and the third arguments: the second argument is `size' and the third one is `nmemb', not the other way around. 1053041 9 242719 gustavo 2014-12-06 10:46:42 -0800 Created attachment 242719 Patch 1053042 10 gustavo 2014-12-06 10:48:00 -0800 I updated the build system and addressed rakuco's comments. 1053097 11 242719 cgarcia 2014-12-07 01:28:47 -0800 Comment on attachment 242719 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=242719&action=review Looks good to me in general, I only have a few minor comments. > Tools/ImageDiff/cairo/ImageDiff.cpp:33 > +#include <cairo/cairo.h> #include <cairo.h> > Tools/ImageDiff/cairo/ImageDiff.cpp:50 > + int* pendingImageSize = static_cast<int*>(closure); The passed value is long, not int. > Tools/ImageDiff/cairo/ImageDiff.cpp:54 > + size_t bytesToRead = min<size_t>(*pendingImageSize, length); An here we cast to size_t, I think we should use the same type consistently. > Tools/ImageDiff/cairo/ImageDiff.cpp:65 > + return cairo_image_surface_create_from_png_stream(static_cast<cairo_read_func_t>(cairoStdinReader), &imageSize); I don't think you need the cast, since the function prototype matches cairo_read_funct_t. You could probably use a lambda here :-) > Tools/ImageDiff/cairo/ImageDiff.cpp:91 > + return 0; nullptr > Tools/ImageDiff/cairo/ImageDiff.cpp:112 > + unsigned numberOfChannels = formatChannels(format); You an move this after the if > Tools/ImageDiff/cairo/ImageDiff.cpp:145 > + maxDistance = max<float>(maxDistance, distance); Do we need the cast? both maxDistance and distance are floats > Tools/ImageDiff/cairo/ImageDiff.cpp:153 > + float difference = 0; I don't think this needs to be initialized. > Tools/ImageDiff/cairo/ImageDiff.cpp:178 > + if (cairo_surface_write_to_png_stream(image, static_cast<cairo_write_func_t>(writeToPixelData), &pixelData) != CAIRO_STATUS_SUCCESS) Same here about rhe function cast. We could probably use a lambda here. > Tools/ImageDiff/cairo/ImageDiff.cpp:181 > + const int dataLength = pixelData.size(); This should be size_t or unsigned. > Tools/ImageDiff/cairo/ImageDiff.cpp:189 > + cairo_surface_t* differenceImage = 0; nullptr. > Tools/ImageDiff/cairo/ImageDiff.cpp:221 > + cairo_surface_t* actualImage = 0; > + cairo_surface_t* baselineImage = 0; nullptr > Tools/ImageDiff/cairo/ImageDiff.cpp:231 > + long imageSize = strtol(strtok(0, " "), 0, 10); nullptr. We could cast this to size_t and use it consistently. > Tools/ImageDiff/cairo/ImageDiff.cpp:253 > + actualImage = 0; > + baselineImage = 0; nullptr 1053108 12 242737 gustavo 2014-12-07 03:29:17 -0800 Created attachment 242737 Patch 1053109 13 242737 gustavo 2014-12-07 03:31:05 -0800 Comment on attachment 242737 Patch I updated the patch with comments, but it turns out the original implementation does not really work - ImageDiff hangs, I may come back to this after the hackfest, unless jdapena beats me to it ;) 1237554 14 gustavo 2016-10-07 04:33:01 -0700 Is this something we are still interested in? 1295377 15 306514 cgarcia 2017-04-07 10:30:39 -0700 Created attachment 306514 New patch 1295379 16 buildbot 2017-04-07 10:32:30 -0700 Attachment 306514 did not pass style-queue: ERROR: Tools/ImageDiff/cairo/PlatformImageCairo.cpp:70: More than one command on the same line [whitespace/newline] [4] Total errors found: 1 in 8 files If any of these errors are false positives, please file a bug against check-webkit-style. 1295402 17 306519 cgarcia 2017-04-07 11:24:23 -0700 Created attachment 306519 New patch 1295403 18 buildbot 2017-04-07 11:26:14 -0700 Attachment 306519 did not pass style-queue: ERROR: Tools/ImageDiff/cairo/PlatformImageCairo.cpp:70: More than one command on the same line [whitespace/newline] [4] Total errors found: 1 in 8 files If any of these errors are false positives, please file a bug against check-webkit-style. 1295411 19 306520 cgarcia 2017-04-07 11:38:39 -0700 Created attachment 306520 New patch 1295412 20 buildbot 2017-04-07 11:41:16 -0700 Attachment 306520 did not pass style-queue: ERROR: Tools/ImageDiff/cairo/PlatformImageCairo.cpp:70: More than one command on the same line [whitespace/newline] [4] Total errors found: 1 in 8 files If any of these errors are false positives, please file a bug against check-webkit-style. 1295963 21 cgarcia 2017-04-10 04:48:32 -0700 Committed r215179: <http://trac.webkit.org/changeset/215179> 166893 2012-10-03 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