/**

 * FreeRDP: A Remote Desktop Protocol Implementation

 * Display update notifications

 *

 * Copyright 2019 Kobi Mizrachi <kmizrachi18@gmail.com>

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#include "display.h"

static BOOL display_write_monitor_layout_pdu(wStream* s, UINT32 monitorCount,

                                             const MONITOR_DEF* monitorDefArray)

{

	UINT32 index;

	const MONITOR_DEF* monitor;

	if (!Stream_EnsureRemainingCapacity(s, 4 + (monitorCount * 20)))

		return FALSE;

	Stream_Write_UINT32(s, monitorCount); /* monitorCount (4 bytes) */

	for (index = 0, monitor = monitorDefArray; index < monitorCount; index++, monitor++)

	{

		Stream_Write_UINT32(s, monitor->left);   /* left (4 bytes) */

		Stream_Write_UINT32(s, monitor->top);    /* top (4 bytes) */

		Stream_Write_UINT32(s, monitor->right);  /* right (4 bytes) */

		Stream_Write_UINT32(s, monitor->bottom); /* bottom (4 bytes) */

		Stream_Write_UINT32(s, monitor->flags);  /* flags (4 bytes) */

	}

	return TRUE;

}

BOOL display_convert_rdp_monitor_to_monitor_def(UINT32 monitorCount,

                                                const rdpMonitor* monitorDefArray,

                                                MONITOR_DEF** result)

{

	UINT32 index;

	const rdpMonitor* monitor;

	if (!monitorDefArray || !(*result))

		return FALSE;

	for (index = 0, monitor = monitorDefArray; index < monitorCount; index++, monitor++)

	{

		MONITOR_DEF* current = (*result + index);

		current->left = monitor->x;                                   /* left (4 bytes) */

		current->top = monitor->y;                                    /* top (4 bytes) */

		current->right = monitor->x + monitor->width - 1;             /* right (4 bytes) */

		current->bottom = monitor->y + monitor->height - 1;           /* bottom (4 bytes) */

		current->flags = monitor->is_primary ? MONITOR_PRIMARY : 0x0; /* flags (4 bytes) */

	}

	return TRUE;

}

BOOL freerdp_display_send_monitor_layout(rdpContext* context, UINT32 monitorCount,

                                         const MONITOR_DEF* monitorDefArray)

{

	rdpRdp* rdp = context->rdp;

	wStream* st = rdp_data_pdu_init(rdp);

	if (!st)

		return FALSE;

	if (!display_write_monitor_layout_pdu(st, monitorCount, monitorDefArray))

	{

		Stream_Release(st);

		return FALSE;

	}

	return rdp_send_data_pdu(rdp, st, DATA_PDU_TYPE_MONITOR_LAYOUT, 0);

}