We need a database of pixel format properties to remove hardcoded magic
numbers. This commit creates a simple function to query the bytes per
pixel for common RGBA formats.
This should be promoted to or superseeded by a common spa namespaced
version.
This splots the format enumeration into a helper for dsp and raw pod
creation and a common function for the compute filters.
Counting formats with modifiers will be usefull to announce dsp and
raw formats from the same node.
No functional changes.
Validation of properties is moved from the import and allocation
functions into a separate function. This allows later separation of
modifier informations from the base struct.
This commit add helpers to create and to import a DmaBuf via the
external_dmabuf_info struct.
The import path is based on the image creation of wlroots and the create path is
inspired by the wlroots vulkan allocator MR.
This commit should just shuffle code around with no functional changes.
The goal is to ease development of simple vulkan nodes by providing
generic helpers.
