First implementation of the new swapchain loader

src/device.rs

@@ -2,6 +2,7 @@
 use prelude::*;
 use std::ptr;
 use std::mem;
+use instance::Instance;
 use vk;
 
 unsafe impl Sync for Device {}
@@ -13,10 +14,85 @@ pub struct Device {
 }
 
 pub struct Swapchain {
+    handle: vk::Device,
+    swapchain_fn: vk::SwapchainFn,
+}
+impl Swapchain {
+    pub fn destroy_swapchain_khr(&self, swapchain: vk::SwapchainKHR) {
+        unsafe {
+            self.swapchain_fn.destroy_swapchain_khr(self.handle, swapchain, ptr::null());
+        }
+    }
 
+    pub fn acquire_next_image_khr(&self,
+                                  swapchain: vk::SwapchainKHR,
+                                  timeout: vk::uint64_t,
+                                  semaphore: vk::Semaphore,
+                                  fence: vk::Fence)
+                                  -> VkResult<vk::uint32_t> {
+        unsafe {
+            let mut index = mem::uninitialized();
+            let err_code = self.swapchain_fn
+                .acquire_next_image_khr(self.handle,
+                                        swapchain,
+                                        timeout,
+                                        semaphore,
+                                        fence,
+                                        &mut index);
+            match err_code {
+                vk::Result::Success => Ok(index),
+                _ => Err(err_code),
+            }
+        }
+    }
+
+    pub fn create_swapchain_khr(&self,
+                                create_info: &vk::SwapchainCreateInfoKHR)
+                                -> VkResult<vk::SwapchainKHR> {
+        unsafe {
+            let mut swapchain = mem::uninitialized();
+            let err_code = self.swapchain_fn
+                .create_swapchain_khr(self.handle, create_info, ptr::null(), &mut swapchain);
+            match err_code {
+                vk::Result::Success => Ok(swapchain),
+                _ => Err(err_code),
+            }
+        }
+    }
+    pub fn get_swapchain_images_khr(&self,
+                                    swapchain: vk::SwapchainKHR)
+                                    -> VkResult<Vec<vk::Image>> {
+        unsafe {
+            let mut count = 0;
+            self.swapchain_fn
+                .get_swapchain_images_khr(self.handle, swapchain, &mut count, ptr::null_mut());
+
+            let mut v = Vec::with_capacity(count as vk::size_t);
+            let err_code = self.swapchain_fn
+                .get_swapchain_images_khr(self.handle, swapchain, &mut count, v.as_mut_ptr());
+            v.set_len(count as vk::size_t);
+            match err_code {
+                vk::Result::Success => Ok(v),
+                _ => Err(err_code),
+            }
+        }
+    }
 }
 
 impl Device {
+    pub fn load_swapchain(&self, instance: &Instance) -> Swapchain {
+        let swapchain_fn = vk::SwapchainFn::load(|name| {
+                unsafe {
+                    mem::transmute(instance.instance_fn
+                        .get_device_proc_addr(self.handle, name.as_ptr()))
+                }
+            })
+            .unwrap();
+        Swapchain {
+            handle: self.handle,
+            swapchain_fn: swapchain_fn,
+        }
+    }
     pub unsafe fn from_raw(handle: vk::Device, device_fn: vk::DeviceFn) -> Self {
         Device {
             handle: handle,
@@ -60,11 +136,6 @@ impl Device {
         }
     }
 
-    pub fn destroy_swapchain_khr(&self, swapchain: vk::SwapchainKHR) {
-        unsafe {
-            self.device_fn.destroy_swapchain_khr(self.handle, swapchain, ptr::null());
-        }
-    }
 
     pub fn destroy_image_view(&self, image_view: vk::ImageView) {
         unsafe {
@@ -404,27 +475,6 @@ impl Device {
         }
     }
 
-    pub fn acquire_next_image_khr(&self,
-                                  swapchain: vk::SwapchainKHR,
-                                  timeout: vk::uint64_t,
-                                  semaphore: vk::Semaphore,
-                                  fence: vk::Fence)
-                                  -> VkResult<vk::uint32_t> {
-        unsafe {
-            let mut index = mem::uninitialized();
-            let err_code = self.device_fn
-                .acquire_next_image_khr(self.handle,
-                                        swapchain,
-                                        timeout,
-                                        semaphore,
-                                        fence,
-                                        &mut index);
-            match err_code {
-                vk::Result::Success => Ok(index),
-                _ => Err(err_code),
-            }
-        }
-    }
 
     pub fn create_semaphore(&self,
                             create_info: &vk::SemaphoreCreateInfo)
@@ -679,24 +729,6 @@ impl Device {
         }
     }
 
-    pub fn get_swapchain_images_khr(&self,
-                                    swapchain: vk::SwapchainKHR)
-                                    -> VkResult<Vec<vk::Image>> {
-        unsafe {
-            let mut count = 0;
-            self.device_fn
-                .get_swapchain_images_khr(self.handle, swapchain, &mut count, ptr::null_mut());
-
-            let mut v = Vec::with_capacity(count as vk::size_t);
-            let err_code = self.device_fn
-                .get_swapchain_images_khr(self.handle, swapchain, &mut count, v.as_mut_ptr());
-            v.set_len(count as vk::size_t);
-            match err_code {
-                vk::Result::Success => Ok(v),
-                _ => Err(err_code),
-            }
-        }
-    }
 
     pub fn allocate_command_buffers(&self,
                                     create_info: &vk::CommandBufferAllocateInfo)
@@ -727,19 +759,6 @@ impl Device {
         }
     }
 
-    pub fn create_swapchain_khr(&self,
-                                create_info: &vk::SwapchainCreateInfoKHR)
-                                -> VkResult<vk::SwapchainKHR> {
-        unsafe {
-            let mut swapchain = mem::uninitialized();
-            let err_code = self.device_fn
-                .create_swapchain_khr(self.handle, create_info, ptr::null(), &mut swapchain);
-            match err_code {
-                vk::Result::Success => Ok(swapchain),
-                _ => Err(err_code),
-            }
-        }
-    }
 
     pub fn create_image(&self, create_info: &vk::ImageCreateInfo) -> VkResult<vk::Image> {
         unsafe {

src/instance.rs

@@ -14,8 +14,8 @@ pub enum DeviceError {
 
 #[derive(Debug)]
 pub struct Instance {
-    handle: vk::Instance,
+    pub handle: vk::Instance,
-    instance_fn: vk::InstanceFn,
+    pub instance_fn: vk::InstanceFn,
 }
 
 impl Instance {

src/vk.rs

@@ -3939,13 +3939,6 @@ vk_functions!{
 
 
 
-    "vkCreateSharedSwapchainsKHR", create_shared_swapchains_khr(
-        device: Device,
-        swapchain_count: uint32_t,
-        p_create_infos: *const SwapchainCreateInfoKHR,
-        p_allocator: *const AllocationCallbacks,
-        p_swapchains: *mut SwapchainKHR,
-    ) -> Result;
 
     "vkGetPhysicalDeviceDisplayPropertiesKHR", get_physical_device_display_properties_khr(
         physical_device: PhysicalDevice,
@@ -4849,6 +4842,22 @@ vk_functions!{
         command_buffer_count: uint32_t,
         p_command_buffers: *const CommandBuffer,
     ) -> ();
+
+    "vkQueuePresentKHR", queue_present_khr(
+        queue: Queue,
+        p_present_info: *const PresentInfoKHR,
+    ) -> Result;
+}
+vk_functions!{
+    SwapchainFn,
+    "vkCreateSharedSwapchainsKHR", create_shared_swapchains_khr(
+        device: Device,
+        swapchain_count: uint32_t,
+        p_create_infos: *const SwapchainCreateInfoKHR,
+        p_allocator: *const AllocationCallbacks,
+        p_swapchains: *mut SwapchainKHR,
+    ) -> Result;
+
     "vkCreateSwapchainKHR", create_swapchain_khr(
         device: Device,
         p_create_info: *const SwapchainCreateInfoKHR,
@@ -4877,10 +4886,5 @@ vk_functions!{
         fence: Fence,
         p_image_index: *mut uint32_t,
     ) -> Result;
-
-    "vkQueuePresentKHR", queue_present_khr(
-        queue: Queue,
-        p_present_info: *const PresentInfoKHR,
-    ) -> Result;
 }
 }