More iOS progress

include/ios_driver.h

@@ -1,3 +1,4 @@
 #pragma once
 
-void iosCreateEmulator();
+void iosCreateEmulator();
+void iosRunFrame(void* drawable, void* drawableTexture);

include/renderer.hpp

@@ -86,6 +86,10 @@ class Renderer {
 	// Called to notify the core to use OpenGL ES and not desktop GL
 	virtual void setupGLES() {}
 
+	// Only relevant for Metal renderer on iOS
+	// Passes a SwiftUI MTKView Drawable & its texture to the renderer
+	virtual void setMTKDrawable(void* drawable, void* drawableTexture) {};
+
 	// This function is called on every draw call before parsing vertex data.
 	// It is responsible for things like looking up which vertex/fragment shaders to use, recompiling them if they don't exist, choosing between
 	// ubershaders and shadergen, and so on.

include/renderer_mtl/renderer_mtl.hpp

@@ -42,11 +42,16 @@ class RendererMTL final : public Renderer {
 	virtual void initGraphicsContext([[maybe_unused]] GL::Context* context) override {}
 #endif
 
-  private:
-	CA::MetalLayer* metalLayer;
+	virtual void setMTKDrawable(void* drawable, void* drawableTexture) override;
 
-	MTL::Device* device;
-	MTL::CommandQueue* commandQueue;
+  private:
+	CA::MetalLayer* metalLayer = nullptr;
+
+	CA::MetalDrawable* metalDrawable = nullptr;
+	MTL::Texture* drawableTexture = nullptr;
+
+	MTL::Device* device = nullptr;
+	MTL::CommandQueue* commandQueue = nullptr;
 
 	Metal::CommandEncoder commandEncoder;