/********************************************************/

/*  ntapi: Native API core library                      */

/*  Copyright (C) 2013--2016  Z. Gilboa                 */

/*  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  */

/********************************************************/

#include <ntapi/nt_status.h>

#include <ntapi/nt_blitter.h>

#include <ntapi/nt_sync.h>

#include <ntapi/ntapi.h>

#include "ntapi_blitter.h"

#include "ntapi_impl.h"

int32_t __fastcall __ntapi_blt_free(nt_blitter * blt_ctx)

{

	int32_t	status;

	void *	region_addr;

	size_t	region_size;

	/* validation */

	if (!blt_ctx) return NT_STATUS_INVALID_PARAMETER;

	/* free blt block */

	region_addr = blt_ctx->info.region_addr;

	region_size = blt_ctx->info.region_size;

	if (region_size && !blt_ctx->params.region) {

		status = __ntapi->zw_free_virtual_memory(

			NT_CURRENT_PROCESS_HANDLE,

			&region_addr,

			&region_size,

			NT_MEM_RELEASE);

		if (status) return status;

	}

	/* free blt control block */

	region_addr = blt_ctx->addr;

	region_size = blt_ctx->size;

	status = __ntapi->zw_free_virtual_memory(

		NT_CURRENT_PROCESS_HANDLE,

		&region_addr,

		&region_size,

		NT_MEM_RELEASE);

	return status;

}