terminal/src/renderer/dx
Chester Liu e8a68114e8
Reserve textClusterColumns vector for performance (#5645)
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## Summary of the Pull Request

In tonight's episode of "Can we be even faster?", we will... you know what, just take a look at the code.

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## References

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## PR Checklist
* [ ] Closes #xxx
* [ ] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Requires documentation to be updated
* [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

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## Detailed Description of the Pull Request / Additional comments

It is actually a quite common technique seen inside the codebase to first reserve the spaces before pushing something into vectors. I don't know why it is not used here.

Before:
![before](https://user-images.githubusercontent.com/4710575/80594408-84051400-8a55-11ea-9c04-c0a808061976.png)

After:

![after](https://user-images.githubusercontent.com/4710575/80594402-80718d00-8a55-11ea-8639-6c038b4bfcf8.png)

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## Validation Steps Performed
2020-04-29 20:12:05 +00:00
..
lib Add experimental retro terminal effects (#3468) 2019-12-12 13:44:01 +00:00
ut_dx Import build fix changes from OS for sync to a34a957cf 2020-03-16 18:26:48 +00:00
CustomTextLayout.cpp Reserve textClusterColumns vector for performance (#5645) 2020-04-29 20:12:05 +00:00
CustomTextLayout.h Improve glyph scaling correction (#4747) 2020-03-02 19:21:07 +00:00
CustomTextRenderer.cpp Use grayscale AA always on non-opaque backgrounds (#5277) 2020-04-24 17:16:34 +00:00
CustomTextRenderer.h Use grayscale AA always on non-opaque backgrounds (#5277) 2020-04-24 17:16:34 +00:00
dirs Import build fix changes from OS for sync to a34a957cf 2020-03-16 18:26:48 +00:00
DxRenderer.cpp Use grayscale AA always on non-opaque backgrounds (#5277) 2020-04-24 17:16:34 +00:00
DxRenderer.hpp Use grayscale AA always on non-opaque backgrounds (#5277) 2020-04-24 17:16:34 +00:00
precomp.cpp Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
precomp.h Render row-by-row instead of invalidating entire screen (#5185) 2020-04-13 20:09:02 +00:00
ScreenPixelShader.h Scale retro terminal scan lines (#4716) 2020-02-26 00:08:45 +00:00
ScreenVertexShader.h Merged PR 4182306: [Git2Git] Merged PR 4182266: conhost: don't use D3DCompiler on inside-windows builds (and delete the shaders) 2020-01-23 00:42:56 +00:00
sources.inc Merged PR 4182306: [Git2Git] Merged PR 4182266: conhost: don't use D3DCompiler on inside-windows builds (and delete the shaders) 2020-01-23 00:42:56 +00:00