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backend: gl: Use effective texture size for rounded corner calculation #1002

Merged
merged 1 commit into from
Dec 20, 2023
Merged

backend: gl: Use effective texture size for rounded corner calculation #1002

merged 1 commit into from
Dec 20, 2023

Commits on Jan 19, 2023

  1. backend: gl: use effective texture size for rounded corner calculation 

    The rounded corner calculation only took the actual texture dimensions
into account, effectively turning all pixels outside completely
transparent. Furthermore, `texelFetch()` in the default window shader
does not work with any `GL_TEXTURE_WRAP_x` parameter.

As a result, a to-be-tiled root pixmap wasn't properly tiled and only
visible in the original top-left corner.

- Changed the default window shader to use `textureSize()` to scale the
  texture coordinates into the proper range for use with `texture2D()`.
- Added a new uniform to the default post-processing shader containing
  the effective texture size for rounded corners calculation instead of
  relying on `textureSize()`.
    @tryone144
    tryone144 committed Jan 19, 2023
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