Add a way to specify an additional uniform name along with a sampler param for the associated transform matrix

[ajmalk]

Followup to #8489

From: https://developer.android.com/reference/android/graphics/SurfaceTexture

When sampling from the texture one should first transform the texture coordinates using the matrix queried via getTransformMatrix(float[]). The transform matrix may change each time updateTexImage() is called, so it should be re-queried each time the texture image is updated.

Adding a way to specify the transform name in the material is the second step to being able to apply it to the uniform in the shader.

[pixelflinger]

This will break materials so you need to add an entry in NEW_RELEASE_NOTES.md (look how it's done in RELEASE_NOTES.md, it's obvious).

The only thing I don't like is that it ads this new associated field to all fields of UBOs, even if that's an extremely rare case. At the moment I can't think of a better way though.

maybe we could add a new associate method to BufferInterfaceBlock::Builder? It would take a uniform name + sampler binding?

[ajmalk]

Maybe we could add a new associate method to BufferInterfaceBlock::Builder? It would take a uniform name + sampler binding?

I can make this change but this would still add the field to all the BufferInterfaceBlocks after they are built iiuc.

[ajmalk]

Alternatively I could add a constructor with default values to the InterfaceBlockEntry that I think would be better since you can still pass in list like before.

[ajmalk]

Done

[pixelflinger]

Does it make sense for the transformName to be set for non external samplers?

Also maybe update docs/Materials.md.html around line 1025 to document the new parameter.

[ajmalk]

Probably not. I'll add a check.