Add Renderer::deinitGraphicsContext

src/core/renderer_gl/renderer_gl.cpp

@@ -801,4 +801,15 @@ void RendererGL::screenshot(const std::string& name) {
 	}
 
 	stbi_write_png(name.c_str(), width, height, 4, flippedPixels.data(), 0);
+}
+
+void RendererGL::deinitGraphicsContext() {
+	// Invalidate all surface caches since they'll no longer be valid
+	textureCache.reset();
+	depthBufferCache.reset();
+	colourBufferCache.reset();
+
+	// All other GL objects should be invalidated automatically and be recreated by the next call to initGraphicsContext
+	// TODO: Make it so that depth and colour buffers get written back to 3DS memory
+	printf("RendererGL::DeinitGraphicsContext called\n");
 }

src/core/renderer_null/renderer_null.cpp

@@ -12,3 +12,4 @@ void RendererNull::displayTransfer(u32 inputAddr, u32 outputAddr, u32 inputSize,
 void RendererNull::textureCopy(u32 inputAddr, u32 outputAddr, u32 totalBytes, u32 inputSize, u32 outputSize, u32 flags) {}
 void RendererNull::drawVertices(PICA::PrimType primType, std::span<const PICA::Vertex> vertices) {}
 void RendererNull::screenshot(const std::string& name) {}
+void RendererNull::deinitGraphicsContext() {}

src/core/renderer_sw/renderer_sw.cpp

@@ -23,3 +23,4 @@ void RendererSw::drawVertices(PICA::PrimType primType, std::span<const PICA::Ver
 }
 
 void RendererSw::screenshot(const std::string& name) { printf("RendererSW: Unimplemented screenshot call\n"); }
+void RendererSw::deinitGraphicsContext() { printf("RendererSW: Unimplemented DeinitGraphicsContext call\n"); }

src/core/renderer_vk/renderer_vk.cpp

@@ -1581,3 +1581,11 @@ void RendererVK::drawVertices(PICA::PrimType primType, std::span<const PICA::Ver
 }
 
 void RendererVK::screenshot(const std::string& name) {}
+
+void RendererVK::deinitGraphicsContext() {
+	// Invalidate the entire texture cache since they'll no longer be valid
+	textureCache.clear();
+
+	// TODO: Make it so that depth and colour buffers get written back to 3DS memory
+	printf("RendererVK::DeinitGraphicsContext called\n");
+}