bc5 normal maps

src/vulkan/mod.rs

@@ -34,6 +34,7 @@ use crate::vulkan::gameobject::{GameObject, GameObjectHandle};
 pub mod pipelines;
 pub mod gameobject;
 pub mod mesh;
+pub mod dds;
 mod renderpass;
 mod framebuffers;
 
@@ -464,12 +465,17 @@ impl VulkanRenderer {
 
         let mut cbb = AutoCommandBufferBuilder::new(device.clone(), self.queue.family()).unwrap();
 
-        let mut offset: usize = 128;
+        let mut offset = 0;
+
+        let block_bytes = match format {
+            Format::BC1_RGBUnormBlock => 8,
+            Format::BC5UnormBlock => 16,
+            f => panic!(format!("Unknown texture format {:?}!", f))
+        };
 
         for i in 0..image_view.mipmap_levels() {
             let mip_size = dimensions.to_image_dimensions().mipmap_dimensions(i).unwrap().width_height_depth();
 
-            let block_bytes = 8;
             let mip_byte_size = (
                   (u32::max(4, mip_size[0]) / 4)
                 * (u32::max(4, mip_size[1]) / 4)