let frame_buffer = device.create_texture(&wgpu::TextureDescriptor {
            label: None,
            size: Extent3d {
                width: 100,
                height: 100,
                depth_or_array_layers: 1,
            },
            mip_level_count: 1,
            sample_count: 1,
            dimension: wgpu::TextureDimension::D2,
            format: wgpu::TextureFormat::Rgba8Unorm,
            usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_DST,
        });

let mut cpu_buffer = vec![0u8;100*100*4];
for i in 0..100{
    for i in 0..100{
         let index = (i*100+j)*4;
         // write some data here
         cpu_buffer[index] = i as u8;
         cpu_buffer[index+1] = 0;
         cpu_buffer[index+2] = 0;
         cpu_buffer[index+3] = 255;
    }
}

queue.write_texture(
   frame_buffer.as_image_copy(),
   &cpu_buffer,
   wgpu::ImageDataLayout {
       offset: 0,
       bytes_per_row: Some(std::num::NonZeroU32::new(100 * 4).unwrap()),
       rows_per_image: None,
   },
   wgpu::Extent3d {
       width: 100,
       height: 100,
       depth_or_array_layers: 1,
   },
);