remove device = null test

src/gpu_dx12.c

@@ -93,6 +93,45 @@ GLOBAL struct {
  * ========================== */
 
 INTERNAL APP_EXIT_CALLBACK_FUNC_DEF(gpu_shutdown);
+INTERNAL void dx12_init_base(struct sys_window *window);
+INTERNAL void dx12_init_shaders(void);
+
+struct gpu_startup_receipt gpu_startup(struct sys_window *window)
+{
+    /* Initialize handles pool */
+    G.handle_entries_mutex = sys_mutex_alloc();
+    G.handle_entries_arena = arena_alloc(GIGABYTE(64));
+
+    /* Initialize dx12 */
+    dx12_init_base(window);
+    dx12_init_shaders();
+
+    /* Register callbacks */
+    app_register_exit_callback(gpu_shutdown);
+
+    struct gpu_startup_receipt res = ZI;
+    return res;
+}
+
+INTERNAL APP_EXIT_CALLBACK_FUNC_DEF(gpu_shutdown)
+{
+#if DX12_DEBUG
+    /* Release objects to make live object reporting less noisy */
+    for (u64 i = 0; i < ARRAY_COUNT(G.swapchain_rtvs); ++i) {
+        ID3D12Resource_Release(G.swapchain_rtvs[i]);
+    }
+    ID3D12DescriptorHeap_Release(G.swapchain_rtv_heap);
+    ID3D12CommandQueue_Release(G.swapchain_ca);
+    ID3D12CommandQueue_Release(G.cq_direct);
+    ID3D12CommandQueue_Release(G.cq_compute);
+    IDXGISwapChain3_Release(G.swapchain);
+    ID3D12Device_Release(G.device);
+#endif
+}
+
+/* ========================== *
+ * Dx12 base initialization
+ * ========================== */
 
 INTERNAL void dx12_init_error(struct string error)
 {
@@ -102,7 +141,7 @@ INTERNAL void dx12_init_error(struct string error)
     scratch_end(scratch);
 }
 
-INTERNAL void dx12_init(struct sys_window *window)
+INTERNAL void dx12_init_base(struct sys_window *window)
 {
     __prof;
     struct temp_arena scratch = scratch_begin_no_conflict();
@@ -174,7 +213,6 @@ INTERNAL void dx12_init(struct sys_window *window)
                 break;
             }
         }
-        device = NULL;
         if (!device) {
             if (first_gpu_name.len > 0) {
                 struct string fmt = LIT("Could not initialize device '%F' with D3D_FEATURE_LEVEL_12_0. Ensure that the device is capable and drivers are up to date.");
@@ -311,7 +349,6 @@ INTERNAL void dx12_init(struct sys_window *window)
                 dx12_init_error(LIT("Failed to create swapchain RTV"));
             }
             ID3D12Device_CreateRenderTargetView(device, swapchain_rtvs[i], NULL, rtv_handle);
-
             rtv_handle.ptr += desc_size_rtv;
         }
     }
@@ -330,36 +367,12 @@ INTERNAL void dx12_init(struct sys_window *window)
     scratch_end(scratch);
 }
 
-struct gpu_startup_receipt gpu_startup(struct sys_window *window)
+/* ========================== *
+ * Dx12 shader initialization
+ * ========================== */
+
+INTERNAL void dx12_init_shaders(void)
 {
-    /* Initialize handles pool */
-    G.handle_entries_mutex = sys_mutex_alloc();
-    G.handle_entries_arena = arena_alloc(GIGABYTE(64));
-
-    /* Initialize dx12 */
-    dx12_init(window);
-
-    /* Register callbacks */
-    app_register_exit_callback(gpu_shutdown);
-
-    struct gpu_startup_receipt res = ZI;
-    return res;
-}
-
-INTERNAL APP_EXIT_CALLBACK_FUNC_DEF(gpu_shutdown)
-{
-#if DX12_DEBUG
-    /* Release objects to make live object reporting less noisy */
-    for (u64 i = 0; i < ARRAY_COUNT(G.swapchain_rtvs); ++i) {
-        ID3D12Resource_Release(G.swapchain_rtvs[i]);
-    }
-    ID3D12DescriptorHeap_Release(G.swapchain_rtv_heap);
-    ID3D12CommandQueue_Release(G.swapchain_ca);
-    ID3D12CommandQueue_Release(G.cq_direct);
-    ID3D12CommandQueue_Release(G.cq_compute);
-    IDXGISwapChain3_Release(G.swapchain);
-    ID3D12Device_Release(G.device);
-#endif
 }
 
 /* ========================== *