The Vivante GPUs don't natively support 128-bit formats like
R32G32B32A32_FLOAT. This patch implements emulation by calculating
the memory layout as if these were 64-bit formats, but doubling the
allocation size to store both halves of the 128-bit data.
For 128-bit formats, we:
- Calculate stride and layer_stride using the 64-bit equivalent format
- Double the mip level size to accommodate both 64-bit halves
- Use translate_format_128bit_to_64bit() to map formats like
R32G32B32A32_FLOAT -> R32G32_FLOAT
This creates a memory layout where each mip level contains the 128-bit
data organized as two consecutive 64-bit portions.
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37597>
Christian Gmeiner
9dd9ebe9c5