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Refactors showText: split type3, remove showSpacedText #4832

Merged
merged 1 commit into from
May 29, 2014
Merged

Refactors showText: split type3, remove showSpacedText #4832

merged 1 commit into from
May 29, 2014

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yurydelendik
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about 4% increase in speed of rendering:

browser        | stat         | Baseline(ms) | Current(ms) | +/- | %    | Result(P<.05)
---------------------------------------------------------------------------------------
FirefoxNightly | Overall      | 118          | 113         | 5   | 3.96 |              
FirefoxNightly | Page Request | 4            | 4           | 0   | 1.97 |              
FirefoxNightly | Rendering    | 114          | 110         | 5   | 4.03 |

https://gist.github.com/yurydelendik/998bda55ad2868ce73bb

@yurydelendik yurydelendik changed the title Refactors showText: split type3, remove showSpacedText [WIP] Refactors showText: split type3, remove showSpacedText May 23, 2014
@yurydelendik
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On windows:

-- Grouped By browser, stat --
browser | stat | Baseline(ms) | Current(ms) | +/- | % | Result(P<.05)
---------------------------------------------------------------------------------
chrome | Overall | 89 | 75 | 14 | 15.88 | faster
chrome | Page Request | 5 | 5 | 0 | 0.13 |
chrome | Rendering | 84 | 70 | 14 | 16.79 | faster
firefox | Overall | 238 | 223 | 14 | 6.06 |
firefox | Page Request | 5 | 5 | 0 | 1.69 |
firefox | Rendering | 233 | 218 | 14 | 6.15 |

@Snuffleupagus
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The general structure looks good, but I'll need to go through this at least once more before I'm comfortable with merging it. (There's a few things I don't completely understand yet.)

/botio test

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Command cmd_test from @Snuffleupagus received. Current queue size: 0

Live output at: http://107.21.233.14:8877/c288e7d2157b071/output.txt

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Command cmd_test from @Snuffleupagus received. Current queue size: 0

Live output at: http://107.22.172.223:8877/7d33185a646e24b/output.txt

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Failed

Full output at http://107.22.172.223:8877/7d33185a646e24b/output.txt

Total script time: 2.71 mins

  • Font tests: FAILED
  • Unit tests: Passed
  • Regression tests: FAILED

Image differences available at: http://107.22.172.223:8877/7d33185a646e24b/reftest-analyzer.html#web=eq.log

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Failed

Full output at http://107.21.233.14:8877/c288e7d2157b071/output.txt

Total script time: 26.42 mins

  • Font tests: Passed
  • Unit tests: Passed
  • Regression tests: FAILED

Image differences available at: http://107.21.233.14:8877/c288e7d2157b071/reftest-analyzer.html#web=eq.log

Snuffleupagus
Snuffleupagus reviewed May 25, 2014
View reviewed changes
src/display/canvas.js
x += fontDirection * wordSpacing;
continue;
} else if (isNum(glyph)) {
x += -glyph * fontSize * 0.001;
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Is perhaps textHScale missing here? I.e. shouldn't the line read:

x += -glyph * fontSize * 0.001 * textHScale;

Edit: This would be consistent with the Type3 case.

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We do that below ~L1433

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Oh, I see!
I was just trying to find a possible reason for all the movement in the tests, or is that expected given the code changes?

@yurydelendik yurydelendik changed the title [WIP] Refactors showText: split type3, remove showSpacedText Refactors showText: split type3, remove showSpacedText May 28, 2014
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/botio test

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Command cmd_test from @Snuffleupagus received. Current queue size: 0

Live output at: http://107.22.172.223:8877/5c105a0b579537c/output.txt

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Command cmd_test from @Snuffleupagus received. Current queue size: 0

Live output at: http://107.21.233.14:8877/172248752f6012d/output.txt

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Failed

Full output at http://107.22.172.223:8877/5c105a0b579537c/output.txt

Total script time: 23.73 mins

  • Font tests: Passed
  • Unit tests: Passed
  • Regression tests: FAILED

Image differences available at: http://107.22.172.223:8877/5c105a0b579537c/reftest-analyzer.html#web=eq.log

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Failed

Full output at http://107.21.233.14:8877/172248752f6012d/output.txt

Total script time: 26.20 mins

  • Font tests: Passed
  • Unit tests: Passed
  • Regression tests: FAILED

Image differences available at: http://107.21.233.14:8877/172248752f6012d/reftest-analyzer.html#web=eq.log

@Snuffleupagus
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Given that the movements in the tests are really small, they can probably be explained by the fact that the handling of some text OPS were moved from canvas.js to evaluator.js. Another contributing factor is likely to be the re-factored (removed) showSpacedText in canvas.js.

As can also be seen in the test results, all the differences are not in text but some of them also affect other drawing operations. This would then be similar to #4683 (comment), meaning that the differences should be fine.

Based on IRC discussions, I think that this PR should be good to go!

/botio makeref

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Command cmd_makeref from @Snuffleupagus received. Current queue size: 1

Live output at: http://107.21.233.14:8877/f2f491f3689e003/output.txt

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Command cmd_makeref from @Snuffleupagus received. Current queue size: 1

Live output at: http://107.22.172.223:8877/73e4b622d97f295/output.txt

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Success

Full output at http://107.22.172.223:8877/73e4b622d97f295/output.txt

Total script time: 25.16 mins

  • Lint: Passed
  • Make references: Passed
  • Check references: Passed

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Success

Full output at http://107.21.233.14:8877/f2f491f3689e003/output.txt

Total script time: 26.13 mins

  • Lint: Passed
  • Make references: Passed
  • Check references: Passed

Snuffleupagus added a commit that referenced this pull request May 29, 2014
@Snuffleupagus
Merge pull request #4832 from yurydelendik/showtext
7e6cdc7 
Refactors showText: split type3, remove showSpacedText
@Snuffleupagus Snuffleupagus merged commit 7e6cdc7 into mozilla:master May 29, 2014
@fkaelberer fkaelberer mentioned this pull request May 31, 2014
Merged
@Snuffleupagus Snuffleupagus mentioned this pull request Aug 28, 2015
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3 participants
@yurydelendik @Snuffleupagus @pdfjsbot