/*-------------------------------------------------
* frame_update - looks through pressed
* input as per events pushed our way and posts
* corresponding IPT_UI_* events
* -------------------------------------------------*/
void frame_update(running_machine machine)
{
/* update the state of all the UI keys */
for (ioport_type code = (ioport_type)(ioport_type.IPT_UI_FIRST + 1); code < ioport_type.IPT_UI_LAST; ++code)
{
bool pressed = machine.ioport().type_pressed(code);
if (!pressed || m_seqpressed[(int)code] != SEQ_PRESSED_RESET)
{
m_seqpressed[(int)code] = pressed ? (byte)1 : (byte)0;
}
}
// perform mouse hit testing
ioport_field mouse_field = m_current_mouse_down ? find_mouse_field() : null;
if (m_current_mouse_field != mouse_field)
{
// clear the old field if there was one
if (m_current_mouse_field != null)
{
m_current_mouse_field.set_value(0);
}
// set the new field if it exists and isn't already being pressed
if (mouse_field != null && !mouse_field.digital_value())
{
mouse_field.set_value(1);
}
// update internal state
m_current_mouse_field = mouse_field;
}
}
//void internal_post(char32_t ch);
//-------------------------------------------------
// timer - timer callback to keep things flowing
// when posting a string of characters
//-------------------------------------------------
void timer(object ptr, int param)
{
if (m_queue_chars != null)
{
// the driver has a queue_chars handler
while (!empty() && m_queue_chars(m_buffer, m_bufbegin, 1) != 0)
{
m_bufbegin = (m_bufbegin + 1) % (UInt32)m_buffer.size();
if (m_current_rate != attotime.zero)
{
break;
}
}
}
else
{
// the driver does not have a queue_chars handler
// loop through this character's component codes
keycode_map_entry code = find_code(m_buffer[(int)m_bufbegin]);
bool advance;
if (code != null)
{
do
{
assert(m_fieldnum < code.field.Length);
ioport_field field = code.field[m_fieldnum];
if (field != null)
{
// special handling for toggle fields
if (!field.live().toggle)
{
field.set_value(!m_status_keydown ? (UInt32)1 : 0);
}
else if (!m_status_keydown)
{
field.set_value(!field.digital_value() ? (UInt32)1 : 0);
}
}
}while (code.field[m_fieldnum] != null && (++m_fieldnum < code.field.Length) && m_status_keydown);
advance = (m_fieldnum >= code.field.Length) || code.field[m_fieldnum] == null;
}
else
{
advance = true;
}
if (advance)
{
m_fieldnum = 0;
m_status_keydown = !m_status_keydown;
// proceed to next character when keydown expires
if (!m_status_keydown)
{
m_bufbegin = (m_bufbegin + 1) % (UInt32)m_buffer.size();
}
}
}
// need to make sure timerproc is called again if buffer not empty
if (!empty())
{
m_timer.adjust(choose_delay(m_buffer[(int)m_bufbegin]));
}
}