Add love.graphics.newTextureView(basetexture, viewsettings). Requires GLSL4 support.
Add 'viewformats' boolean setting to texture setting tables.
Add Texture:hasViewFormats.
The viewsettings table has the following fields:
format = nil, -- set this to a pixel format to override the base format. It must have the same number of bytes per pixel as the original, and the 'viewformats' setting on the original texture must be true for this to work. Cannot be used for compressed or depth/stencil textures.
type = nil, -- set this to a texture type to override the base texture type. 2d base textures can make [2d, array] views. [array, cube] base textures can make [2d, array, cube] views.
mipmapstart = nil, -- set to a number to use a less detailed mipmap level as a base.
mipmapcount = nil, -- set to a number to override the number of mipmaps in the texture view.
layerstart = nil, -- set to a number to use a specific layer or cube face as a base.
layers = nil, -- set to a number to override the number of layers in an array texture view.
There is no real effect yet when rendering, however debugging the
application with renderdoc reveals that the mipmap generation is
already correct. There's probably something weird going on with the
sampling. I'll have to look into that next.
Before this commit we would greedily wait for the upload to be complete
before exiting the function. This is of course not correct, since
we might be changing data that is still being used in a render in
flight. Of course we also need to cleanup the resources asynchronously
after the frame has been rendered fully.
using the vulkan functionality probably leads to less bugs.
Until now it was assumed that any image was in the rgba8 format,
which is of course not correct. Clearing a texture to white or black
should now work for any format.
Sasha Szpakowski
niki