karl2d/render_backend_chooser.odin

package karl2d

CONFIG_RENDER_BACKEND_NAME :: #config(KARL2D_RENDER_BACKEND, "")

when ODIN_OS == .Windows {
	DEFAULT_RENDER_BACKEND_NAME :: "d3d11"
	AVAILABLE_RENDER_BACKENDS :: "d3d11, gl"
} else when ODIN_OS == .Linux || ODIN_OS == .Darwin {
	DEFAULT_RENDER_BACKEND_NAME :: "gl"
	AVAILABLE_RENDER_BACKENDS :: "gl"
} else when ODIN_OS == .JS {
	DEFAULT_RENDER_BACKEND_NAME :: "webgl"
	AVAILABLE_RENDER_BACKENDS :: "webgl"
} else {
	DEFAULT_RENDER_BACKEND_NAME :: "nil"
	AVAILABLE_RENDER_BACKENDS :: "nil"
}

when CONFIG_RENDER_BACKEND_NAME == "" {
	RENDER_BACKEND_NAME :: DEFAULT_RENDER_BACKEND_NAME
} else {
	RENDER_BACKEND_NAME :: CONFIG_RENDER_BACKEND_NAME
}

when RENDER_BACKEND_NAME == "gl" {
	RENDER_BACKEND :: RENDER_BACKEND_GL
} else when RENDER_BACKEND_NAME == "d3d11" {
	RENDER_BACKEND :: RENDER_BACKEND_D3D11
} else when RENDER_BACKEND_NAME == "webgl" {
	RENDER_BACKEND :: RENDER_BACKEND_WEBGL
} else when RENDER_BACKEND_NAME == "nil" {
	RENDER_BACKEND :: RENDER_BACKEND_NIL
} else {
	#panic("'" + RENDER_BACKEND_NAME + "' is not a valid value for 'KARL2D_RENDER_BACKEND' on Operating System " + ODIN_OS_STRING + ". Available backends are: " + AVAILABLE_RENDER_BACKENDS)
}