// Copyright (C) 2025 kbz_8
// This file is part of "Pulse"
// For conditions of distribution and use, see copyright notice in LICENSE

#include <Pulse.h>
#include "../../PulseInternal.h"

#include "Metal.h"
#include "MetalDevice.h"

PulseBackendFlags MetalCheckSupport(PulseBackendFlags candidates, PulseShaderFormatsFlags shader_formats_used)
{
	if(candidates != PULSE_BACKEND_ANY && (candidates & PULSE_BACKEND_METAL) == 0)
		return PULSE_BACKEND_INVALID;
	if((shader_formats_used & (PULSE_SHADER_FORMAT_MSL_BIT | PULSE_SHADER_FORMAT_METALLIB_BIT)) == 0)
		return PULSE_BACKEND_INVALID;
	return PULSE_BACKEND_METAL;
}

bool MetalLoadBackend(PulseBackend backend, PulseDebugLevel debug_level)
{
	PULSE_UNUSED(backend);
	PULSE_UNUSED(debug_level);
	return true;
}

void MetalUnloadBackend(PulseBackend backend)
{
}

PulseBackendHandler MetalDriver = {
	.PFN_LoadBackend = MetalLoadBackend,
	.PFN_UnloadBackend = MetalUnloadBackend,
	.PFN_CreateDevice = MetalCreateDevice,
	.backend = PULSE_BACKEND_METAL,
	.supported_shader_formats = PULSE_SHADER_FORMAT_MSL_BIT | PULSE_SHADER_FORMAT_METALLIB_BIT,
	.driver_data = PULSE_NULLPTR
};