Fix cube map mip-map-levels

vulkan-rs/src/image.rs

@@ -381,6 +381,22 @@ impl ImageBuilder {
                     info.vk_image_create_info.extent.height,
                 );
 
+                self.mip_map_levels(levels)
+            }
+            _ => panic!("wrong builder type in ImageBuilder"),
+        }
+    }
+
+    pub fn mip_map_levels(mut self, levels: u32) -> Self {
+        match self.builder_type {
+            ImageBuilderInternalType::NewImage(ref mut info) => {
+                let max_levels = Self::calc_mip_map_levels(
+                    info.vk_image_create_info.extent.width,
+                    info.vk_image_create_info.extent.height,
+                );
+
+                debug_assert!(levels <= max_levels, "too many mip maps levels");
+
                 info.vk_image_create_info.mipLevels = levels;
                 self.subresource_range.levelCount = levels;
 
@@ -1276,18 +1292,19 @@ fn blit_mip_maps(
     image: &Arc<Image>,
     target_image_layout: VkImageLayout,
 ) {
-    let mut mip_width = image.width();
+    for layer in 0..image.layers() {
-    let mut mip_height = image.height();
-
         // subresource information
         let mut subresource_range = VkImageSubresourceRange {
             aspectMask: VK_IMAGE_ASPECT_COLOR_BIT.into(),
             baseMipLevel: 0,
             levelCount: 1,
-        baseArrayLayer: 0,
+            baseArrayLayer: layer,
             layerCount: image.layers(),
         };
 
+        let mut mip_width = image.width();
+        let mut mip_height = image.height();
+
         for i in 1..image.levels() {
             let source_mip_level = i - 1;
             let target_mip_level = i;
@@ -1305,7 +1322,7 @@ fn blit_mip_maps(
                 srcSubresource: VkImageSubresourceLayers {
                     aspectMask: VK_IMAGE_ASPECT_COLOR_BIT.into(),
                     mipLevel: source_mip_level,
-                baseArrayLayer: 0,
+                    baseArrayLayer: layer,
                     layerCount: 1,
                 },
                 srcOffsets: [
@@ -1319,7 +1336,7 @@ fn blit_mip_maps(
                 dstSubresource: VkImageSubresourceLayers {
                     aspectMask: VK_IMAGE_ASPECT_COLOR_BIT.into(),
                     mipLevel: target_mip_level,
-                baseArrayLayer: 0,
+                    baseArrayLayer: layer,
                     layerCount: 1,
                 },
                 dstOffsets: [
@@ -1363,3 +1380,4 @@ fn blit_mip_maps(
         subresource_range.baseMipLevel = image.levels() - 1;
         buffer_recorder.set_image_layout(image, target_image_layout, subresource_range);
     }
+}