display.c

 
#include "display.h"
 
static BOOL display_write_monitor_layout_pdu(wStream* s, UINT32 monitorCount,
                                             const MONITOR_DEF* monitorDefArray)
{
  if (!Stream_EnsureRemainingCapacity(s, 4 + (monitorCount * 20)))
    return FALSE;
 
  Stream_Write_UINT32(s, monitorCount); /* monitorCount (4 bytes) */
 
  for (UINT32 index = 0; index < monitorCount; index++)
  {
    const MONITOR_DEF* monitor = &monitorDefArray[index];
 
    Stream_Write_INT32(s, monitor->left);   /* left (4 bytes) */
    Stream_Write_INT32(s, monitor->top);    /* top (4 bytes) */
    Stream_Write_INT32(s, monitor->right);  /* right (4 bytes) */
    Stream_Write_INT32(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)
{
  MONITOR_DEF* mdef = NULL;
 
  if (!monitorDefArray || !result || (*result))
    return FALSE;
 
  mdef = (MONITOR_DEF*)calloc(monitorCount, sizeof(MONITOR_DEF));
 
  if (!mdef)
    return FALSE;
 
  for (UINT32 index = 0; index < monitorCount; index++)
  {
    const rdpMonitor* monitor = &monitorDefArray[index];
    MONITOR_DEF* current = &mdef[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) */
  }
 
  *result = mdef;
  return TRUE;
}
 
BOOL freerdp_display_send_monitor_layout(rdpContext* context, UINT32 monitorCount,
                                         const MONITOR_DEF* monitorDefArray)
{
  rdpRdp* rdp = context->rdp;
  UINT16 sec_flags = 0;
  wStream* st = rdp_data_pdu_init(rdp, &sec_flags);
 
  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, sec_flags);
}