RESOLVED FIXED 261187
[TextureMapper] Do texture transformation in vertex shader when copying texture 
https://bugs.webkit.org/show_bug.cgi?id=261187
Summary [TextureMapper] Do texture transformation in vertex shader when copying texture
Akihiro Kiuchi
Reported 2023-09-05 18:21:24 PDT
This is a sub issue of Bug231653, and caused from Bug261101 Now when copying texture in TextureMapperGL, we are using `u_textureCopyMatrix` uniform variable to transform texture coordinate in fragment shader. But doing texture transformation in fragment shader is costy, and there is another suitable uniform variable `u_textureSpaceMatrix` to do texture transformation in vertex shader.
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Akihiro Kiuchi
Comment 1 2023-09-05 20:12:52 PDT
Pull request: https://github.com/WebKit/WebKit/pull/17469
EWS
Comment 2 2023-09-06 13:09:32 PDT
Committed 267687@main (14f7f3375957): <https://commits.webkit.org/267687@main> Reviewed commits have been landed. Closing PR #17469 and removing active labels.
Radar WebKit Bug Importer
Comment 3 2023-09-06 13:10:15 PDT
<rdar://problem/115072414>
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