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Use glCopyImageSubData() when it's available #8259

Merged
merged 1 commit into from
Dec 6, 2015
Merged

Use glCopyImageSubData() when it's available #8259

merged 1 commit into from
Dec 6, 2015

Commits on Dec 6, 2015

  1. Use glCopyImageSubData() when it's available. 

    There's 4 different extensions providing this functionality.  NV is
supported on desktop and mobile, EXT/OES on mobile, and ARB on desktop.

Mostly these are only supported by desktop cards and NVIDIA mobile.

Good improvement in performance on NVIDIA when blit is called a lot, since
it doesn't need to rebind anything or change state.  Example is in desert
city in Tales of Phantasia.
    @unknownbrackets
    unknownbrackets committed Dec 6, 2015
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