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, 10 insertions, 0 deletions

diff --git a/tools/gfx/vulkan/render-vk.h b/tools/gfx/vulkan/render-vk.h
new file mode 100644
index 000000000..14a8e403a
--- /dev/null
+++ b/tools/gfx/vulkan/render-vk.h
@@ -0,0 +1,10 @@
+// render-vk.h
+#pragma once
+
+namespace gfx {
+
+class Renderer;
+
+Renderer* createVKRenderer();
+
+} // gfx