From 3f1632a1450a5879f337b4bd178e48880cd583f8 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Wed, 31 Mar 2021 11:35:17 -0700
Subject: `gfx` explicit transient resource management. (#1774)

---
 examples/example-base/example-base.h | 52 ++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 examples/example-base/example-base.h

(limited to 'examples/example-base/example-base.h')

diff --git a/examples/example-base/example-base.h b/examples/example-base/example-base.h
new file mode 100644
index 000000000..ab7522f06
--- /dev/null
+++ b/examples/example-base/example-base.h
@@ -0,0 +1,52 @@
+#pragma once
+
+#include "slang-gfx.h"
+#include "tools/platform/window.h"
+#include "source/core/slang-basic.h"
+
+struct WindowedAppBase
+{
+protected:
+    static const int kSwapchainImageCount = 2;
+
+    Slang::RefPtr<platform::Window> gWindow;
+    uint32_t windowWidth;
+    uint32_t windowHeight;
+
+    Slang::ComPtr<gfx::IDevice> gDevice;
+
+    Slang::ComPtr<gfx::ISwapchain> gSwapchain;
+    Slang::ComPtr<gfx::IFramebufferLayout> gFramebufferLayout;
+    Slang::List<Slang::ComPtr<gfx::IFramebuffer>> gFramebuffers;
+    Slang::List<Slang::ComPtr<gfx::ITransientResourceHeap>> gTransientHeaps;
+    Slang::ComPtr<gfx::IRenderPassLayout> gRenderPass;
+    Slang::ComPtr<gfx::ICommandQueue> gQueue;
+
+    Slang::Result initializeBase(const char* titile, int width, int height);
+    void createSwapchainFramebuffers();
+    void mainLoop();
+
+    virtual void windowSizeChanged();
+
+protected:
+    virtual void renderFrame(int framebufferIndex) = 0;
+public:
+    platform::Window* getWindow() { return gWindow.Ptr(); }
+    virtual void finalize() { gQueue->wait(); }
+};
+
+template<typename TApp>
+int innerMain()
+{
+    TApp app;
+
+    if (SLANG_FAILED(app.initialize()))
+    {
+        return -1;
+    }
+
+    platform::Application::run(app.getWindow());
+
+    app.finalize();
+    return 0;
+}
-- 
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