C++ (Cpp) rdpei_write_4byte_signed Examples

Example #1

/**
 * Function description
 *
 * @return 0 on success, otherwise a Win32 error code
 */
UINT rdpei_write_touch_frame(wStream* s, RDPINPUT_TOUCH_FRAME* frame)
{
	UINT32 index;
	int rectSize = 2;
	RDPINPUT_CONTACT_DATA* contact;
#ifdef WITH_DEBUG_RDPEI
	WLog_DBG(TAG, "contactCount: %d", frame->contactCount);
	WLog_DBG(TAG, "frameOffset: 0x%08X", (UINT32) frame->frameOffset);
#endif
	rdpei_write_2byte_unsigned(s,
	                           frame->contactCount); /* contactCount (TWO_BYTE_UNSIGNED_INTEGER) */
	/**
	 * the time offset from the previous frame (in microseconds).
	 * If this is the first frame being transmitted then this field MUST be set to zero.
	 */
	rdpei_write_8byte_unsigned(s,
	                           frame->frameOffset * 1000); /* frameOffset (EIGHT_BYTE_UNSIGNED_INTEGER) */

	if (!Stream_EnsureRemainingCapacity(s, (size_t) frame->contactCount * 64))
	{
		WLog_ERR(TAG, "Stream_EnsureRemainingCapacity failed!");
		return CHANNEL_RC_NO_MEMORY;
	}

	for (index = 0; index < frame->contactCount; index++)
	{
		contact = &frame->contacts[index];
		contact->fieldsPresent |= CONTACT_DATA_CONTACTRECT_PRESENT;
		contact->contactRectLeft = contact->x - rectSize;
		contact->contactRectTop = contact->y - rectSize;
		contact->contactRectRight = contact->x + rectSize;
		contact->contactRectBottom = contact->y + rectSize;
#ifdef WITH_DEBUG_RDPEI
		WLog_DBG(TAG, "contact[%d].contactId: %d", index, contact->contactId);
		WLog_DBG(TAG, "contact[%d].fieldsPresent: %d", index, contact->fieldsPresent);
		WLog_DBG(TAG, "contact[%d].x: %d", index, contact->x);
		WLog_DBG(TAG, "contact[%d].y: %d", index, contact->y);
		WLog_DBG(TAG, "contact[%d].contactFlags: 0x%04X", index, contact->contactFlags);
		rdpei_print_contact_flags(contact->contactFlags);
#endif
		Stream_Write_UINT8(s, contact->contactId); /* contactId (1 byte) */
		/* fieldsPresent (TWO_BYTE_UNSIGNED_INTEGER) */
		rdpei_write_2byte_unsigned(s, contact->fieldsPresent);
		rdpei_write_4byte_signed(s, contact->x); /* x (FOUR_BYTE_SIGNED_INTEGER) */
		rdpei_write_4byte_signed(s, contact->y); /* y (FOUR_BYTE_SIGNED_INTEGER) */
		/* contactFlags (FOUR_BYTE_UNSIGNED_INTEGER) */
		rdpei_write_4byte_unsigned(s, contact->contactFlags);

		if (contact->fieldsPresent & CONTACT_DATA_CONTACTRECT_PRESENT)
		{
			/* contactRectLeft (TWO_BYTE_SIGNED_INTEGER) */
			rdpei_write_2byte_signed(s, contact->contactRectLeft);
			/* contactRectTop (TWO_BYTE_SIGNED_INTEGER) */
			rdpei_write_2byte_signed(s, contact->contactRectTop);
			/* contactRectRight (TWO_BYTE_SIGNED_INTEGER) */
			rdpei_write_2byte_signed(s, contact->contactRectRight);
			/* contactRectBottom (TWO_BYTE_SIGNED_INTEGER) */
			rdpei_write_2byte_signed(s, contact->contactRectBottom);
		}

		if (contact->fieldsPresent & CONTACT_DATA_ORIENTATION_PRESENT)
		{
			/* orientation (FOUR_BYTE_UNSIGNED_INTEGER) */
			rdpei_write_4byte_unsigned(s, contact->orientation);
		}

		if (contact->fieldsPresent & CONTACT_DATA_PRESSURE_PRESENT)
		{
			/* pressure (FOUR_BYTE_UNSIGNED_INTEGER) */
			rdpei_write_4byte_unsigned(s, contact->pressure);
		}
	}

	return CHANNEL_RC_OK;
}

Example #2

File: rdpei_main.c Project: chenkaigithub/FreeRDP

int rdpei_write_touch_frame(wStream* s, RDPINPUT_TOUCH_FRAME* frame)
{
	int index;
	RDPINPUT_CONTACT_DATA* contact;

#ifdef WITH_DEBUG_RDPEI
	printf("contactCount: %d\n", frame->contactCount);
	printf("frameOffset: 0x%08X\n", (UINT32) frame->frameOffset);
#endif

	rdpei_write_2byte_unsigned(s, frame->contactCount); /* contactCount (TWO_BYTE_UNSIGNED_INTEGER) */
	rdpei_write_8byte_unsigned(s, frame->frameOffset); /* frameOffset (EIGHT_BYTE_UNSIGNED_INTEGER) */

	Stream_EnsureRemainingCapacity(s, frame->contactCount * 32);

	for (index = 0; index < frame->contactCount; index++)
	{
		contact = &frame->contacts[index];

#ifdef WITH_DEBUG_RDPEI
		printf("contact[%d].contactId: %d\n", index, contact->contactId);
		printf("contact[%d].fieldsPresent: %d\n", index, contact->fieldsPresent);
		printf("contact[%d].x: %d\n", index, contact->x);
		printf("contact[%d].y: %d\n", index, contact->y);
		printf("contact[%d].contactFlags: 0x%04X", index, contact->contactFlags);
		rdpei_print_contact_flags(contact->contactFlags);
		printf("\n");
#endif

		Stream_Write_UINT8(s, contact->contactId); /* contactId (1 byte) */

		/* fieldsPresent (TWO_BYTE_UNSIGNED_INTEGER) */
		rdpei_write_2byte_unsigned(s, contact->fieldsPresent);

		rdpei_write_4byte_signed(s, contact->x); /* x (FOUR_BYTE_SIGNED_INTEGER) */
		rdpei_write_4byte_signed(s, contact->y); /* y (FOUR_BYTE_SIGNED_INTEGER) */

		/* contactFlags (FOUR_BYTE_UNSIGNED_INTEGER) */
		rdpei_write_4byte_unsigned(s, contact->contactFlags);

		if (contact->fieldsPresent & CONTACT_DATA_CONTACTRECT_PRESENT)
		{
			/* contactRectLeft (TWO_BYTE_SIGNED_INTEGER) */
			rdpei_write_2byte_signed(s, contact->contactRectLeft);
			/* contactRectTop (TWO_BYTE_SIGNED_INTEGER) */
			rdpei_write_2byte_signed(s, contact->contactRectTop);
			/* contactRectRight (TWO_BYTE_SIGNED_INTEGER) */
			rdpei_write_2byte_signed(s, contact->contactRectRight);
			/* contactRectBottom (TWO_BYTE_SIGNED_INTEGER) */
			rdpei_write_2byte_signed(s, contact->contactRectBottom);
		}

		if (contact->fieldsPresent & CONTACT_DATA_ORIENTATION_PRESENT)
		{
			/* orientation (FOUR_BYTE_UNSIGNED_INTEGER) */
			rdpei_write_4byte_unsigned(s, contact->orientation);
		}

		if (contact->fieldsPresent & CONTACT_DATA_PRESSURE_PRESENT)
		{
			/* pressure (FOUR_BYTE_UNSIGNED_INTEGER) */
			rdpei_write_4byte_unsigned(s, contact->pressure);
		}
	}

	return 0;
}