OpenXR: Improve swapchain logic and fix swapchain update when render target multiplier is changed.

1 files changed, 25 insertions, 8 deletions

diff --git a/modules/openxr/openxr_api.h b/modules/openxr/openxr_api.h
index 9eb51eee7a..e835366200 100644
--- a/modules/openxr/openxr_api.h
+++ b/modules/openxr/openxr_api.h
@@ -58,12 +58,28 @@ class OpenXRInterface;
 
 class OpenXRAPI {
 public:
-	struct OpenXRSwapChainInfo {
+	class OpenXRSwapChainInfo {
+	private:
 		XrSwapchain swapchain = XR_NULL_HANDLE;
 		void *swapchain_graphics_data = nullptr;
 		uint32_t image_index = 0;
 		bool image_acquired = false;
 		bool skip_acquire_swapchain = false;
+
+		static Vector<OpenXRSwapChainInfo> free_queue;
+
+	public:
+		_FORCE_INLINE_ XrSwapchain get_swapchain() const { return swapchain; }
+		_FORCE_INLINE_ bool is_image_acquired() const { return image_acquired; }
+
+		bool create(XrSwapchainCreateFlags p_create_flags, XrSwapchainUsageFlags p_usage_flags, int64_t p_swapchain_format, uint32_t p_width, uint32_t p_height, uint32_t p_sample_count, uint32_t p_array_size);
+		void queue_free();
+		static void free_queued();
+		void free();
+
+		bool acquire(XrBool32 &p_should_render);
+		bool release();
+		RID get_image();
 	};
 
 private:
@@ -148,12 +164,14 @@ private:
 
 	int64_t color_swapchain_format = 0;
 	int64_t depth_swapchain_format = 0;
-	OpenXRSwapChainInfo swapchains[OPENXR_SWAPCHAIN_MAX];
+	Size2i main_swapchain_size = { 0, 0 };
+	OpenXRSwapChainInfo main_swapchains[OPENXR_SWAPCHAIN_MAX];
 
 	XrSpace play_space = XR_NULL_HANDLE;
 	XrSpace view_space = XR_NULL_HANDLE;
 	bool view_pose_valid = false;
 	XRPose::TrackingConfidence head_pose_confidence = XRPose::XR_TRACKING_CONFIDENCE_NONE;
+	bool has_xr_viewport = false;
 
 	bool emulating_local_floor = false;
 	bool should_reset_emulated_floor_height = false;
@@ -241,7 +259,9 @@ private:
 	bool setup_view_space();
 	bool load_supported_swapchain_formats();
 	bool is_swapchain_format_supported(int64_t p_swapchain_format);
-	bool create_swapchains();
+	bool obtain_swapchain_formats();
+	bool create_main_swapchains(Size2i p_size);
+	void free_main_swapchains();
 	void destroy_session();
 
 	// action map
@@ -312,6 +332,7 @@ public:
 	XrInstance get_instance() const { return instance; };
 	XrSystemId get_system_id() const { return system_id; };
 	XrSession get_session() const { return session; };
+	OpenXRGraphicsExtensionWrapper *get_graphics_extension() const { return graphics_extension; };
 	String get_runtime_name() const { return runtime_name; };
 	String get_runtime_version() const { return runtime_version; };
 
@@ -406,11 +427,7 @@ public:
 
 	// swapchains
 	int64_t get_color_swapchain_format() const { return color_swapchain_format; }
-	bool create_swapchain(XrSwapchainCreateFlags p_create_flags, XrSwapchainUsageFlags p_usage_flags, int64_t p_swapchain_format, uint32_t p_width, uint32_t p_height, uint32_t p_sample_count, uint32_t p_array_size, XrSwapchain &r_swapchain, void **r_swapchain_graphics_data);
-	void free_swapchain(OpenXRSwapChainInfo &p_swapchain);
-	bool acquire_image(OpenXRSwapChainInfo &p_swapchain);
-	RID get_image(OpenXRSwapChainInfo &p_swapchain);
-	bool release_image(OpenXRSwapChainInfo &p_swapchain);
+	int64_t get_depth_swapchain_format() const { return depth_swapchain_format; }
 
 	// action map
 	String get_default_action_map_resource_name();