message: Switch to u8 slices for push constant (fixes passed length)
diff: @@ -667,14 +667,14 @@ pub trait DeviceV1_0 {
  layout: vk::PipelineLayout,
  stage_flags: vk::ShaderStageFlags,
  offset: vk::uint32_t,
  - constants: &[u32]
  + constants: &[u8]
  ) {
  self.fp_v1_0().cmd_push_constants(
  command_buffer,
  layout,
  stage_flags,
  offset,
  - constants.len() as vk::uint32_t,
  + constants.len() as _,
  constants.as_ptr() as _,
  );
  }
  