[gl] fix x11 RWH handling, tiered configs, and fill_buffer

gfx-rs / gfx

[maintenance mode] A low-overhead Vulkan-like GPU API for Rust.

http://gfx-rs.github.io/

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[gl] fix x11 RWH handling, tiered configs, and fill_buffer #3602

Closed kvark closed 3 years ago

kvark commented 3 years ago

Fixes the GL backend presentation on all platforms (yikes!). Refactors the fbconfig request to check for tiers in a loop. Finally, implements fill_buffer. We can now go through make reftests without crashes, albeit some unimplemented methods remain.

r? @Gordon-F PR checklist:

[x] make succeeds (on *nix)
[ ] make reftests succeeds
[x] tested examples with the following backends: GL

kvark commented 3 years ago

bors r+

bors[bot] commented 3 years ago

Build succeeded:

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