#include "device.h"

#include <string.h>
#include <stdio.h>
#include <stdlib.h>

static device_vtable_t const device_vtable = {
	device_read,
	device_write,
#ifdef WITH_GUI
	device_draw,
#endif
	device_deinit
};

void device_init( device_t *device, const char *name )
{
	device->name = strdup( name );

	device->vtable = &device_vtable;
}

void device_copy( device_t *to, device_t *from )
{
	memcpy( to, from, sizeof( device_t ) );
	
	to->name = strdup( from->name );
}

uint8_t device_read( void *obj, uint16_t addr )
{
	device_t *device = (device_t *)obj;
	
	fprintf( stderr, "WARN: read access on abstract device '%s' on address %04X\n",
		device->name, addr );
		
	return 0;
}

void device_write( void *obj, uint16_t addr, uint8_t data )
{
	device_t *device = (device_t *)obj;

	fprintf( stderr, "WARN: write access on abstract device '%s' on address %04X\n",
		device->name, addr );	
}

#ifdef WITH_GUI
void device_draw( void *obj, SDL_Renderer *renderer )
{
	// ignore rendering of abstract device
}
#endif

void device_deinit( void *obj )
{
	device_t *device = (device_t *)obj;
	
	free( device->name );
}