Refactor render-test to make cross platform (#1053)

* First pass of render-test refactor.

* Make window construction a function that can choose an implementation.

* Remove OpenGL as currently has windows dependency.

* Disable Vulkan as Renderer impl has dependency on windows.

* Pass Window in as parameter of 'update'.

* Add win-window.cpp as was missing.

* Fix warning on windows about signs during comparison.

1 files changed, 33 insertions, 0 deletions

diff --git a/tools/gfx/render.cpp b/tools/gfx/render.cpp
index 44bb4fb04..785343927 100644
--- a/tools/gfx/render.cpp
+++ b/tools/gfx/render.cpp
@@ -3,6 +3,11 @@
 
 #include "../../source/core/slang-math.h"
 
+#include "d3d11/render-d3d11.h"
+#include "d3d12/render-d3d12.h"
+#include "open-gl/render-gl.h"
+#include "vulkan/render-vk.h"
+
 namespace gfx {
 using namespace Slang;
 
@@ -404,4 +409,32 @@ ProjectionStyle RendererUtil::getProjectionStyle(RendererType type)
     }
 }
 
+/* static */ RendererUtil::CreateFunc RendererUtil::getCreateFunc(RendererType type)
+{
+    switch (type)
+    {
+#if SLANG_WINDOWS_FAMILY
+        case RendererType::DirectX11:
+        {
+            return &createD3D11Renderer;
+        }
+        case RendererType::DirectX12:
+        {
+            return &createD3D12Renderer;
+        }
+        case RendererType::OpenGl:
+        {
+            return &createGLRenderer;
+        }
+        case RendererType::Vulkan:
+        {
+            return &createVKRenderer;
+        }
+#endif
+
+        default: return nullptr;
+    }
+}
+
+
 } // renderer_test