Add mouse position input function

src/input/input.odin

@@ -11,5 +11,9 @@ key_state: proc(key: Key) -> Action
 //   implementation in platform package, to prevent cyclic dependency
 mouse_button_state: proc(button: Mouse_Button) -> Action
 
+// Returns the position of the mouse cursor
+//   implementation in platform package, to prevent cyclic dependency
+mouse_position: proc() -> (x_pos: f32, y_pos: f32)
+
 // -----------------------------------------
 // Private functions

src/platform/glfw.odin

@@ -52,11 +52,7 @@ os_init :: proc(settings: core.Settings) {
 	// Register input functions
 	input.key_state = key_state
 	input.mouse_button_state = mouse_button_state
-
-	// TODO: Figure out proper vsync, found 3 spots so far
-	// - glfw.SwapInterval(0) this is only for OpenGL it seems?
-	// - glfw.SetWindowMonitor(refresh)
-	// - wgpu presentMode = .Fifo
+	input.mouse_position = mouse_position
 }
 
 os_destroy :: proc() {
@@ -157,6 +153,12 @@ mouse_button_state :: proc(button: input.Mouse_Button) -> input.Action {
 	return input_action(glfw.GetMouseButton(state.os.window, i32(button)))
 }
 
+@(private = "file")
+mouse_position :: proc() -> (x_pos: f32, y_pos: f32) {
+	x_pos_f64, y_pos_64 := glfw.GetCursorPos(state.os.window)
+	return f32(x_pos_f64), f32(y_pos_64)
+}
+
 @(private = "file")
 input_action :: proc(action: i32) -> input.Action {
 	if action == glfw.RELEASE do return input.Action.Release

src/platform/wgpu.odin

@@ -26,7 +26,7 @@ state: struct {
 	pipeline_layout: wgpu.PipelineLayout,
 	pipeline:        wgpu.RenderPipeline,
 	// ----------------------------------------
-	present_modes:   []wgpu.PresentMode,
+	capabilities:    wgpu.SurfaceCapabilities,
 	vsync:           bool,
 }
 
@@ -69,6 +69,7 @@ instance_destroy :: proc() {
 	wgpu.ShaderModuleRelease(state.module)
 	wgpu.QueueRelease(state.queue)
 	wgpu.DeviceRelease(state.device)
+	wgpu.SurfaceCapabilitiesFreeMembers(state.capabilities)
 	wgpu.AdapterRelease(state.adapter)
 	wgpu.SurfaceRelease(state.surface)
 	wgpu.InstanceRelease(state.instance)
@@ -260,25 +261,29 @@ get_present_modes :: proc() {
 	if status != .Success {
 		fmt.panicf("[wgpu] surface capabilities failure: [%v]", status)
 	}
-	state.present_modes = capabilities.presentModes[:capabilities.presentModeCount]
-	fmt.println("[wgpu] supported present modes", state.present_modes)
+	state.capabilities = capabilities
+
+	present_modes := capabilities.presentModes[:capabilities.presentModeCount]
+	fmt.println("[wgpu] supported present modes", present_modes)
 }
 
 @(private = "file")
 pick_present_mode :: proc(vsync: bool) -> wgpu.PresentMode {
-	if len(state.present_modes) == 0 do return .Fifo
+	present_modes := state.capabilities.presentModes[:state.capabilities.presentModeCount]
+
+	if len(present_modes) == 0 do return .Fifo
 
 	// Mimmick wgpu auto Vsync behavior
 	// https://docs.rs/wgpu/latest/wgpu/enum.PresentMode.html
 	if vsync {
-		if slice.contains(state.present_modes, wgpu.PresentMode.FifoRelaxed) {
+		if slice.contains(present_modes, wgpu.PresentMode.FifoRelaxed) {
 			return .FifoRelaxed // Adaptive Vsync
 		}
 	} else {
-		if slice.contains(state.present_modes, wgpu.PresentMode.Immediate) {
+		if slice.contains(present_modes, wgpu.PresentMode.Immediate) {
 			return .Immediate // Vsync Off
 		}
-		if slice.contains(state.present_modes, wgpu.PresentMode.Mailbox) {
+		if slice.contains(present_modes, wgpu.PresentMode.Mailbox) {
 			return .Mailbox // Fast Vsync
 		}
 	}