/**
* \brief Main application function
*
* This function calls all the necessary initialization functions before
* launching the calculator widget and entering the main work loop.
*
* The main work loop is responsible for handling the low level user input, so
* it reads touch data from the mXT143E Xplained, translates and passes it on to
* the window system's event queue.
*
* All the processing for the calculator is done by the calculator widget's
* event handler function \ref app_calc_handler(). This function is called by
* the window system when it maps a user input event to an interaction with the
* calculator, i.e., a button press.
*/
int main(void)
{
static struct mxt_device device;
board_init();
sysclk_init();
membag_init();
gfx_init();
mxt_init(&device);
win_init();
setup_gui_root_window();
win_reset_root_geometry();
if (app_widget_launch() == false) {
show_out_of_memory_error();
for (;;);
}
while (true) {
struct win_pointer_event win_touch_event;
/* Queue touch events from the touchscreen if any are available */
while (read_touch_event(&device, &win_touch_event)) {
win_queue_pointer_event(&win_touch_event);
}
/* Process queued events in the windowing system */
win_process_events();
}
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
UINT rdpei_server_handle_messages(RdpeiServerContext *context) {
DWORD bytesReturned;
RdpeiServerPrivate *priv = context->priv;
wStream *s = priv->inputStream;
UINT error = CHANNEL_RC_OK;
if (!WTSVirtualChannelRead(priv->channelHandle, 0, (PCHAR)Stream_Pointer(s), priv->expectedBytes, &bytesReturned))
{
if (GetLastError() == ERROR_NO_DATA)
return ERROR_READ_FAULT;
WLog_DBG(TAG, "channel connection closed");
return CHANNEL_RC_OK;
}
priv->expectedBytes -= bytesReturned;
Stream_Seek(s, bytesReturned);
if (priv->expectedBytes)
return CHANNEL_RC_OK;
Stream_SealLength(s);
Stream_SetPosition(s, 0);
if (priv->waitingHeaders)
{
UINT32 pduLen;
/* header case */
Stream_Read_UINT16(s, priv->currentMsgType);
Stream_Read_UINT16(s, pduLen);
if (pduLen < RDPINPUT_HEADER_LENGTH)
{
WLog_ERR(TAG, "invalid pduLength %d", pduLen);
return ERROR_INVALID_DATA;
}
priv->expectedBytes = pduLen - RDPINPUT_HEADER_LENGTH;
priv->waitingHeaders = FALSE;
Stream_SetPosition(s, 0);
if (priv->expectedBytes)
{
if (!Stream_EnsureCapacity(s, priv->expectedBytes))
{
WLog_ERR(TAG, "Stream_EnsureCapacity failed!");
return CHANNEL_RC_NO_MEMORY;
}
return CHANNEL_RC_OK;
}
}
/* when here we have the header + the body */
switch (priv->currentMsgType)
{
case EVENTID_CS_READY:
if (priv->automataState != STATE_WAITING_CLIENT_READY)
{
WLog_ERR(TAG, "not expecting a CS_READY packet in this state(%d)", (int)priv->automataState);
return ERROR_INVALID_STATE;
}
if ((error = read_cs_ready_message(context, s)))
{
WLog_ERR(TAG, "read_cs_ready_message failed with error %lu", error);
return error;
}
break;
case EVENTID_TOUCH:
if ((error = read_touch_event(context, s)))
{
WLog_ERR(TAG, "read_touch_event failed with error %lu", error);
return error;
}
break;
case EVENTID_DISMISS_HOVERING_CONTACT:
if ((error = read_dismiss_hovering_contact(context, s)))
{
WLog_ERR(TAG, "read_dismiss_hovering_contact failed with error %lu", error);
return error;
}
break;
default:
WLog_ERR(TAG, "unexpected message type 0x%x", priv->currentMsgType);
}
Stream_SetPosition(s, 0);
priv->waitingHeaders = TRUE;
priv->expectedBytes = RDPINPUT_HEADER_LENGTH;
return error;
}
int rdpei_server_handle_messages(RdpeiServerContext *context) {
DWORD bytesReturned;
RdpeiServerPrivate *priv = context->priv;
wStream *s = priv->inputStream;
if (!WTSVirtualChannelRead(priv->channelHandle, 0, (PCHAR)Stream_Pointer(s), priv->expectedBytes, &bytesReturned))
{
if (GetLastError() == ERROR_NO_DATA)
return -1;
fprintf(stderr, "%s: channel connection closed\n", __FUNCTION__);
return 0;
}
priv->expectedBytes -= bytesReturned;
Stream_Seek(s, bytesReturned);
if (priv->expectedBytes)
return 1;
Stream_SealLength(s);
Stream_SetPosition(s, 0);
if (priv->waitingHeaders)
{
UINT32 pduLen;
/* header case */
Stream_Read_UINT16(s, priv->currentMsgType);
Stream_Read_UINT16(s, pduLen);
if (pduLen < RDPINPUT_HEADER_LENGTH)
{
fprintf(stderr, "%s: invalid pduLength %d\n", __FUNCTION__, pduLen);
return -1;
}
priv->expectedBytes = pduLen - RDPINPUT_HEADER_LENGTH;
priv->waitingHeaders = FALSE;
Stream_SetPosition(s, 0);
if (priv->expectedBytes)
{
Stream_EnsureCapacity(s, priv->expectedBytes);
return 1;
}
}
/* when here we have the header + the body */
switch (priv->currentMsgType)
{
case EVENTID_CS_READY:
if (priv->automataState != STATE_WAITING_CLIENT_READY)
{
fprintf(stderr, "%s: not expecting a CS_READY packet in this state(%d)\n", __FUNCTION__, (int)priv->automataState);
return 0;
}
if (read_cs_ready_message(context, s) < 0)
return 0;
break;
case EVENTID_TOUCH:
if (read_touch_event(context, s) < 0)
{
fprintf(stderr, "%s: error in touch event packet\n", __FUNCTION__);
return 0;
}
break;
case EVENTID_DISMISS_HOVERING_CONTACT:
if (read_dismiss_hovering_contact(context, s) < 0)
{
fprintf(stderr, "%s: error reading read_dismiss_hovering_contact\n", __FUNCTION__);
return 0;
}
break;
default:
fprintf(stderr, "%s: unexpected message type 0x%x\n", __FUNCTION__, priv->currentMsgType);
}
Stream_SetPosition(s, 0);
priv->waitingHeaders = TRUE;
priv->expectedBytes = RDPINPUT_HEADER_LENGTH;
return 1;
}
