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Simplify and fix sprite atlas coordinate calculations #4737

Merged
merged 4 commits into from May 23, 2017
Merged

Simplify and fix sprite atlas coordinate calculations #4737

merged 4 commits into from May 23, 2017

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jfirebaugh
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GL JS counterpart of mapbox/mapbox-gl-native#9038.

ansis
ansis approved these changes May 23, 2017
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Looks good! I don't have any feedback or questions.

mourner
mourner reviewed May 23, 2017
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Do we have to use getter methods instead of properties here? Let's make sure the overhead from creating tons of new array objects doesn't add up in the frame duration benchmark.

@jfirebaugh
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I had to revert the getters for other reasons, anyway (object must be plain JSON to send to worker).

Final benchmarks:

benchmark master 02dfbb1 sprite-atlas-pixels 0edbd2a
map-load 121 ms 110 ms
style-load 85 ms 87 ms
buffer 1,036 ms 1,000 ms
fps 60 fps 60 fps
frame-duration 4.1 ms, 0% > 16ms 4 ms, 0% > 16ms
query-point 1.95 ms 2.10 ms
query-box 81.08 ms 84.27 ms
geojson-setdata-small 5 ms 3 ms
geojson-setdata-large 90 ms 89 ms

@jfirebaugh
Simplify and fix sprite atlas coordinate calculations
333168d 
* Always return image metrics exclusive of padding
* Work with integer coordinates whenever possible
* Eliminate redundant SpriteAtlasElement members
* Fix asymmetric re-padding in getIconQuad when pixelRatio != 1
* Add explanatory comments
@jfirebaugh
Add tests for 1.5x image
e869abb
@jfirebaugh
Enable passing test in gl-native
7478d79
@jfirebaugh jfirebaugh merged commit ca1e1cf into master May 23, 2017
@jfirebaugh jfirebaugh deleted the sprite-atlas-pixels branch May 23, 2017 19:28
@jfirebaugh jfirebaugh mentioned this pull request May 25, 2017
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@jfirebaugh jfirebaugh mentioned this pull request Jul 17, 2017
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@jmunowitch jmunowitch mentioned this pull request Sep 14, 2017
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@mourner mourner mourner approved these changes

@ansis ansis ansis approved these changes

@anandthakker anandthakker anandthakker approved these changes

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@jfirebaugh @mourner @ansis @anandthakker