vc4_mock_output_desc
const struct vc4_mock_output_desc *mock_output = &pipe->outputs[i];
const struct vc4_mock_output_desc *outputs;
.outputs = (struct vc4_mock_output_desc[]) { __VA_ARGS__ }, \
.noutputs = sizeof((struct vc4_mock_output_desc[]) { __VA_ARGS__ }) / \
sizeof(struct vc4_mock_output_desc), \