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https://github.com/holub/mame
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fixedfreq: Separate interface from implementation. (nw)
This commit is contained in:
couriersud
parent
e80276bb23
commit
275cd544f0
@ -24,33 +24,115 @@
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Fixed frequency monitor
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***************************************************************************/
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// device type definition
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DEFINE_DEVICE_TYPE(FIXFREQ, fixedfreq_device, "fixfreq", "Fixed-Frequency Monochrome Monitor")
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void fixedfreq_monitor_state::update_sync_channel(const time_type &time, const double newval)
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{
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const time_type delta_time = time - m_last_sync_time;
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const int last_vsync = m_sig_vsync;
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const int last_comp = m_sig_composite;
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m_vsync_filter += ((double) last_comp - m_vsync_filter) * (1.0 - exp(-delta_time * m_vsync_filter_timeconst));
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m_sig_composite = (newval < m_desc.m_sync_threshold) ? 1 : 0 ;
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m_sig_vsync = (m_vsync_filter > m_vsync_threshold) ? 1 : 0;
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if (!last_vsync && m_sig_vsync)
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{
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//LOG("VSYNC %d %d\n", m_last_x, m_last_y + m_sig_field);
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m_last_y = m_desc.m_vbackporch - m_desc.m_vsync;
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// toggle bitmap
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m_cur_bm ^= 1;
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m_intf.update_screen_parameters(time - m_last_vsync_time);
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m_last_vsync_time = time;
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}
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else if (last_vsync && !m_sig_vsync)
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{
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m_sig_field = last_comp; /* force false-progressive */
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m_sig_field = (m_sig_field ^ 1) ^ last_comp; /* if there is no field switch, auto switch */
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//LOG("Field: %d\n", m_sig_field);
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}
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if (!last_comp && m_sig_composite)
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{
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/* TODO - time since last hsync and field detection */
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//LOG("HSYNC up %d\n", m_last_x);
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// FIXME: pixels > 50 filters some spurious hysnc on line 27 in breakout
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if (!m_sig_vsync && (m_last_x > m_desc.m_hscale * 100))
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{
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m_last_y += m_desc.m_fieldcount;
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m_last_x = 0;
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m_line_time = time;
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}
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//if (m_last_y == 27) printf("HSYNC up %d %d\n", m_last_y, pixels);
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}
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else if (last_comp && !m_sig_composite)
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{
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/* falling composite */
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//LOG("HSYNC down %f %d %f\n", time * 1e6, m_last_x, m_sync_signal);
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}
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m_sync_signal = newval;
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m_last_sync_time = time;
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}
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void fixedfreq_monitor_state::recompute_parameters()
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{
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bool needs_realloc = (m_htotal != m_desc.m_hbackporch) && (m_vtotal != m_desc.m_vbackporch);
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if (m_bitmap[0] != nullptr || needs_realloc)
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m_bitmap[0] = nullptr;
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if (m_bitmap[1] != nullptr || needs_realloc)
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m_bitmap[1] = nullptr;
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m_htotal = m_desc.m_hbackporch;
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m_vtotal = m_desc.m_vbackporch;
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/* sync separator */
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m_vsync_threshold = (exp(- 3.0/(3.0+3.0))) - exp(-1.0);
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m_vsync_filter_timeconst = (double) (m_desc.m_monitor_clock) / (double) m_htotal * 1.0; // / (3.0 + 3.0);
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//LOG("trigger %f with len %f\n", m_vsync_threshold, 1e6 / m_vsync_filter_timeconst);
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m_bitmap[0] = std::make_unique<bitmap_rgb32>(m_htotal * m_desc.m_hscale, m_vtotal);
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m_bitmap[1] = std::make_unique<bitmap_rgb32>(m_htotal * m_desc.m_hscale, m_vtotal);
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m_clock_period = 1.0 / m_desc.m_monitor_clock;
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m_intf.update_screen_parameters(m_clock_period * m_vtotal * m_htotal);
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}
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void fixedfreq_monitor_state::update_bm(const time_type &time)
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{
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const int pixels = round((time - m_line_time) * m_desc.m_hscale / m_clock_period);
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const int has_fields = (m_desc.m_fieldcount > 1) ? 1: 0;
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bitmap_rgb32 *bm = m_bitmap[m_cur_bm].get();
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if (m_last_y < bm->height())
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{
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rgb_t col(255, 0, 0); // Mark sync areas
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if (m_sync_signal >= m_desc.m_sync_threshold)
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{
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col = m_col;
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}
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bm->plot_box(m_last_x, m_last_y + m_sig_field * has_fields, pixels - m_last_x, 1, col);
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m_last_x = pixels;
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}
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}
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fixedfreq_device::fixedfreq_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, type, tag, owner, clock),
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device_video_interface(mconfig, *this, false),
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m_htotal(0),
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m_vtotal(0),
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m_hscale(1), // FIXME: this should be modified by static initialization
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m_sync_signal(0),
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m_last_x(0),
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m_last_y(0),
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m_cur_bm(0),
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// default to NTSC "704x480@30i"
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m_monitor_clock(13500000),
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m_hvisible(704),
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m_hfrontporch(728),
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m_hsync(791),
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m_hbackporch(858),
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m_vvisible(480),
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m_vfrontporch(486),
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m_vsync(492),
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m_vbackporch(525),
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m_fieldcount(2),
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m_sync_threshold(0.3),
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m_gain(1.0 / 3.7),
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m_vsync_filter(0), m_vsync_threshold(0), m_vsync_filter_timeconst(0), m_sig_vsync(0), m_sig_composite(0), m_sig_field(0)
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m_refresh_period(time_type(0)),
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m_monitor(),
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m_state(m_monitor, *this)
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{
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}
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@ -65,7 +147,9 @@ void fixedfreq_device::device_config_complete()
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return;
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if (!screen().refresh_attoseconds())
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screen().set_raw(m_monitor_clock, m_hbackporch, 0, m_hbackporch, m_vbackporch, 0, m_vbackporch);
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screen().set_raw(m_monitor.m_monitor_clock, m_monitor.m_hbackporch, 0,
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m_monitor.m_hbackporch, m_monitor.m_vbackporch, 0,
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m_monitor.m_vbackporch);
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if (!screen().has_screen_update())
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screen().set_screen_update(screen_update_rgb32_delegate(FUNC(fixedfreq_device::screen_update), this));
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@ -73,57 +157,35 @@ void fixedfreq_device::device_config_complete()
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void fixedfreq_device::device_start()
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{
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m_htotal = 0;
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m_vtotal = 0;
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m_sync_signal = 0.0;
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m_col = rgb_t(0,0,0);
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m_last_x = 0;
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m_last_y = 0;
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m_last_sync_time = time_type(0);
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m_line_time = time_type(0);
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m_last_hsync_time = time_type(0);
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m_last_vsync_time = time_type(0);
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m_refresh_period = time_type(0);
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m_clock_period = time_type(0);
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//bitmap_rgb32 *m_bitmap[2];
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m_cur_bm = 0;
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/* sync separator */
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m_vsync_filter = 0.0;
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m_vsync_threshold = 0.0;
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m_vsync_filter_timeconst = 0.0;
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m_state.dev_start_helper();
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m_sig_vsync = 0;
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m_sig_composite = 0;
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m_sig_field = 0;
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m_state.recompute_parameters();
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m_bitmap[0] = nullptr;
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m_bitmap[1] = nullptr;
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//m_vblank_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(vga_device::vblank_timer_cb),this));
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recompute_parameters();
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save_item(NAME(m_sync_signal));
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save_item(NAME(m_last_x));
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save_item(NAME(m_last_y));
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save_item(NAME(m_last_sync_time));
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save_item(NAME(m_line_time));
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save_item(NAME(m_last_hsync_time));
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save_item(NAME(m_last_vsync_time));
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// FIXME: will be done by netlist going forward
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save_item(NAME(m_state.m_sync_signal));
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save_item(NAME(m_state.m_last_x));
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save_item(NAME(m_state.m_last_y));
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save_item(NAME(m_state.m_last_sync_time));
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save_item(NAME(m_state.m_line_time));
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save_item(NAME(m_state.m_last_hsync_time));
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save_item(NAME(m_state.m_last_vsync_time));
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save_item(NAME(m_refresh_period));
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save_item(NAME(m_clock_period));
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save_item(NAME(m_state.m_clock_period));
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//save_item(NAME(m_bitmap[0]));
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//save_item(NAME(m_bitmap[1]));
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save_item(NAME(m_cur_bm));
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save_item(NAME(m_state.m_cur_bm));
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/* sync separator */
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save_item(NAME(m_vsync_filter));
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save_item(NAME(m_vsync_threshold));
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save_item(NAME(m_vsync_filter_timeconst));
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save_item(NAME(m_state.m_vsync_filter));
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save_item(NAME(m_state.m_vsync_threshold));
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save_item(NAME(m_state.m_vsync_filter_timeconst));
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save_item(NAME(m_sig_vsync));
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save_item(NAME(m_sig_composite));
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save_item(NAME(m_sig_field));
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save_item(NAME(m_state.m_sig_vsync));
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save_item(NAME(m_state.m_sig_composite));
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save_item(NAME(m_state.m_sig_field));
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@ -131,12 +193,7 @@ void fixedfreq_device::device_start()
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void fixedfreq_device::device_reset()
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{
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m_last_sync_time = time_type(0);
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m_line_time = time_type(0);
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m_last_hsync_time = time_type(0);
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m_last_vsync_time = time_type(0);
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m_vsync_filter = 0;
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m_state.dev_reset_helper();
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}
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@ -145,130 +202,27 @@ void fixedfreq_device::device_post_load()
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//recompute_parameters();
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}
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void fixedfreq_device::recompute_parameters()
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{
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bool needs_realloc = (m_htotal != m_hbackporch) && (m_vtotal != m_vbackporch);
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if (m_bitmap[0] != nullptr || needs_realloc)
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m_bitmap[0] = nullptr;
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if (m_bitmap[1] != nullptr || needs_realloc)
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m_bitmap[1] = nullptr;
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m_htotal = m_hbackporch;
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m_vtotal = m_vbackporch;
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/* sync separator */
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m_vsync_threshold = (exp(- 3.0/(3.0+3.0))) - exp(-1.0);
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m_vsync_filter_timeconst = (double) (m_monitor_clock) / (double) m_htotal * 1.0; // / (3.0 + 3.0);
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LOG("trigger %f with len %f\n", m_vsync_threshold, 1e6 / m_vsync_filter_timeconst);
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m_bitmap[0] = std::make_unique<bitmap_rgb32>(m_htotal * m_hscale, m_vtotal);
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m_bitmap[1] = std::make_unique<bitmap_rgb32>(m_htotal * m_hscale, m_vtotal);
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m_clock_period = 1.0 / m_monitor_clock;
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update_screen_parameters(m_clock_period * m_vtotal * m_htotal);
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}
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void fixedfreq_device::update_screen_parameters(const time_type &refresh)
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{
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rectangle visarea(
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(m_hbackporch - m_hfrontporch) * m_hscale,
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(m_hbackporch - m_hfrontporch + m_hvisible) * m_hscale - 1,
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m_vbackporch - m_vfrontporch,
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m_vbackporch - m_vfrontporch + m_vvisible - 1);
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rectangle visarea(m_monitor.minh(), m_monitor.maxh(), m_monitor.minv(), m_monitor.maxv());
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m_refresh_period = refresh;
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screen().configure(m_htotal * m_hscale, m_vtotal, visarea, DOUBLE_TO_ATTOSECONDS(m_refresh_period));
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}
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void fixedfreq_device::update_sync_channel(const time_type &time, const double newval)
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{
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const time_type delta_time = time - m_last_sync_time;
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const int last_vsync = m_sig_vsync;
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const int last_comp = m_sig_composite;
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m_vsync_filter += ((double) last_comp - m_vsync_filter) * (1.0 - exp(-delta_time * m_vsync_filter_timeconst));
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m_sig_composite = (newval < m_sync_threshold) ? 1 : 0 ;
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m_sig_vsync = (m_vsync_filter > m_vsync_threshold) ? 1 : 0;
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if (!last_vsync && m_sig_vsync)
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{
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LOG("VSYNC %d %d\n", m_last_x, m_last_y + m_sig_field);
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m_last_y = m_vbackporch - m_vsync;
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// toggle bitmap
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m_cur_bm ^= 1;
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update_screen_parameters(time - m_last_vsync_time);
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m_last_vsync_time = time;
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}
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else if (last_vsync && !m_sig_vsync)
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{
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m_sig_field = last_comp; /* force false-progressive */
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m_sig_field = (m_sig_field ^ 1) ^ last_comp; /* if there is no field switch, auto switch */
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LOG("Field: %d\n", m_sig_field);
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}
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if (!last_comp && m_sig_composite)
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{
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/* TODO - time since last hsync and field detection */
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LOG("HSYNC up %d\n", m_last_x);
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// FIXME: pixels > 50 filters some spurious hysnc on line 27 in breakout
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if (!m_sig_vsync && (m_last_x > m_hscale * 100))
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{
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m_last_y += m_fieldcount;
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m_last_x = 0;
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m_line_time = time;
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}
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//if (m_last_y == 27) printf("HSYNC up %d %d\n", m_last_y, pixels);
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}
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else if (last_comp && !m_sig_composite)
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{
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/* falling composite */
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LOG("HSYNC down %f %d %f\n", time * 1e6, m_last_x, m_sync_signal);
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}
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m_sync_signal = newval;
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m_last_sync_time = time;
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}
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void fixedfreq_device::update_bm(const time_type &time)
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{
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const int pixels = round((time - m_line_time) * m_hscale / m_clock_period);
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const int has_fields = (m_fieldcount > 1) ? 1: 0;
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bitmap_rgb32 *bm = m_bitmap[m_cur_bm].get();
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if (m_last_y < bm->height())
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{
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rgb_t col(255, 0, 0); // Mark sync areas
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if (m_sync_signal >= m_sync_threshold)
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{
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col = m_col;
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}
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bm->plot_box(m_last_x, m_last_y + m_sig_field * has_fields, pixels - m_last_x, 1, col);
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m_last_x = pixels;
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}
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screen().configure(m_state.m_htotal * m_monitor.m_hscale, m_state.m_vtotal, visarea, DOUBLE_TO_ATTOSECONDS(m_refresh_period));
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}
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uint32_t fixedfreq_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
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{
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copybitmap(bitmap, *m_bitmap[!m_cur_bm], 0, 0, 0, 0, cliprect);
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copybitmap(bitmap, *m_state.m_bitmap[!m_state.m_cur_bm], 0, 0, 0, 0, cliprect);
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return 0;
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}
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NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_composite_monochrome)
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void fixedfreq_monitor_state::update_composite_monochrome(const time_type &time, const double data)
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{
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// double is good enough for this exercise;
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update_bm(time);
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update_sync_channel(time, data);
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const time_type ctime = time.as_double();
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update_bm(ctime);
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update_sync_channel(ctime, data);
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int colv = (int) ((data - m_sync_threshold) * m_gain * 255.0);
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int colv = (int) ((data - m_desc.m_sync_threshold) * m_desc.m_gain * 255.0);
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if (colv > 255)
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colv = 255;
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if (colv < 0)
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@ -277,18 +231,61 @@ NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_composite_monochrome)
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m_col = rgb_t(colv, colv, colv);
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}
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void fixedfreq_monitor_state::update_red(const time_type &time, const double data)
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{
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update_bm(time);
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//update_sync_channel(ctime, data);
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int colv = (int) ((data - m_desc.m_sync_threshold) * m_desc.m_gain * 255.0);
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if (colv > 255)
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colv = 255;
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m_col.set_r(colv);
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}
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void fixedfreq_monitor_state::update_green(const time_type &time, const double data)
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{
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update_bm(time);
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//update_sync_channel(ctime, data);
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int colv = (int) ((data - m_desc.m_sync_threshold) * m_desc.m_gain * 255.0);
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if (colv > 255)
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colv = 255;
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m_col.set_g(colv);
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}
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void fixedfreq_monitor_state::update_blue(const time_type &time, const double data)
|
||||
{
|
||||
update_bm(time);
|
||||
//update_sync_channel(ctime, data);
|
||||
|
||||
int colv = (int) ((data - m_desc.m_sync_threshold) * m_desc.m_gain * 255.0);
|
||||
if (colv > 255)
|
||||
colv = 255;
|
||||
m_col.set_b(colv);
|
||||
|
||||
}
|
||||
|
||||
void fixedfreq_monitor_state::update_sync(const time_type &time, const double data)
|
||||
{
|
||||
update_bm(time);
|
||||
update_sync_channel(time, data);
|
||||
}
|
||||
|
||||
|
||||
NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_composite_monochrome)
|
||||
{
|
||||
// double is good enough for this exercise;
|
||||
|
||||
const time_type ctime = time.as_double();
|
||||
m_state.update_composite_monochrome(ctime, data);
|
||||
}
|
||||
|
||||
NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_red)
|
||||
{
|
||||
// double is good enough for this exercise;
|
||||
|
||||
const time_type ctime = time.as_double();
|
||||
update_bm(ctime);
|
||||
//update_sync_channel(ctime, data);
|
||||
|
||||
int colv = (int) ((data - m_sync_threshold) * m_gain * 255.0);
|
||||
if (colv > 255)
|
||||
colv = 255;
|
||||
m_col.set_r(colv);
|
||||
m_state.update_red(ctime, data);
|
||||
}
|
||||
|
||||
NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_green)
|
||||
@ -296,13 +293,7 @@ NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_green)
|
||||
// double is good enough for this exercise;
|
||||
|
||||
const time_type ctime = time.as_double();
|
||||
update_bm(ctime);
|
||||
//update_sync_channel(ctime, data);
|
||||
|
||||
int colv = (int) ((data - m_sync_threshold) * m_gain * 255.0);
|
||||
if (colv > 255)
|
||||
colv = 255;
|
||||
m_col.set_g(colv);
|
||||
m_state.update_green(ctime, data);
|
||||
}
|
||||
|
||||
NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_blue)
|
||||
@ -310,13 +301,7 @@ NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_blue)
|
||||
// double is good enough for this exercise;
|
||||
|
||||
const time_type ctime = time.as_double();
|
||||
update_bm(ctime);
|
||||
//update_sync_channel(ctime, data);
|
||||
|
||||
int colv = (int) ((data - m_sync_threshold) * m_gain * 255.0);
|
||||
if (colv > 255)
|
||||
colv = 255;
|
||||
m_col.set_b(colv);
|
||||
m_state.update_blue(ctime, data);
|
||||
}
|
||||
|
||||
NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_sync)
|
||||
@ -324,8 +309,7 @@ NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_sync)
|
||||
// double is good enough for this exercise;
|
||||
|
||||
const time_type ctime = time.as_double();
|
||||
update_bm(ctime);
|
||||
update_sync_channel(ctime, data);
|
||||
m_state.update_sync(ctime, data);
|
||||
}
|
||||
|
||||
/***************************************************************************/
|
||||
|
||||
@ -17,35 +17,188 @@
|
||||
#include "machine/netlist.h"
|
||||
#include "screen.h"
|
||||
|
||||
struct fixedfreq_monitor_desc
|
||||
{
|
||||
fixedfreq_monitor_desc()
|
||||
// default to NTSC "704x480@30i"
|
||||
: m_monitor_clock(13500000),
|
||||
m_hvisible(704),
|
||||
m_hfrontporch(728),
|
||||
m_hsync(791),
|
||||
m_hbackporch(858),
|
||||
m_vvisible(480),
|
||||
m_vfrontporch(486),
|
||||
m_vsync(492),
|
||||
m_vbackporch(525),
|
||||
m_fieldcount(2),
|
||||
m_sync_threshold(0.3),
|
||||
m_gain(1.0 / 3.7),
|
||||
m_hscale(1)
|
||||
{}
|
||||
|
||||
int minh() const { return (m_hbackporch - m_hfrontporch) * m_hscale; }
|
||||
int maxh() const { return (m_hbackporch - m_hfrontporch + m_hvisible) * m_hscale - 1; }
|
||||
int minv() const { return m_vbackporch - m_vfrontporch; }
|
||||
int maxv() const { return m_vbackporch - m_vfrontporch + m_vvisible - 1; }
|
||||
|
||||
uint32_t m_monitor_clock;
|
||||
int m_hvisible;
|
||||
int m_hfrontporch;
|
||||
int m_hsync;
|
||||
int m_hbackporch;
|
||||
int m_vvisible;
|
||||
int m_vfrontporch;
|
||||
int m_vsync;
|
||||
int m_vbackporch;
|
||||
int m_fieldcount;
|
||||
double m_sync_threshold;
|
||||
double m_gain;
|
||||
int m_hscale;
|
||||
};
|
||||
|
||||
struct fixedfreq_monitor_state
|
||||
{
|
||||
typedef double time_type;
|
||||
|
||||
struct fixedfreq_monitor_intf
|
||||
{
|
||||
virtual ~fixedfreq_monitor_intf() = default;
|
||||
virtual void update_screen_parameters(const time_type &refresh) = 0;
|
||||
};
|
||||
|
||||
fixedfreq_monitor_state(fixedfreq_monitor_desc &desc, fixedfreq_monitor_intf &intf)
|
||||
: m_desc(desc),
|
||||
m_intf(intf),
|
||||
m_sync_signal(0),
|
||||
m_last_x(0),
|
||||
m_last_y(0),
|
||||
m_last_sync_time(time_type(0)),
|
||||
m_line_time(time_type(0)),
|
||||
m_last_hsync_time(time_type(0)),
|
||||
m_last_vsync_time(time_type(0)),
|
||||
m_clock_period(time_type(0)),
|
||||
m_vsync_filter(0),
|
||||
m_vsync_threshold(0),
|
||||
m_vsync_filter_timeconst(0),
|
||||
m_sig_vsync(0),
|
||||
m_sig_composite(0),
|
||||
m_sig_field(0),
|
||||
m_cur_bm(0),
|
||||
m_htotal(0),
|
||||
m_vtotal(0)
|
||||
{}
|
||||
|
||||
void dev_start_helper()
|
||||
{
|
||||
// FIXME: once moved to netlist this may no longer be necessary.
|
||||
// Only copies constructor init
|
||||
|
||||
m_sync_signal = 0.0;
|
||||
m_col = rgb_t(0,0,0);
|
||||
m_last_x = 0;
|
||||
m_last_y = 0;
|
||||
m_last_sync_time = time_type(0);
|
||||
m_line_time = time_type(0);
|
||||
m_last_hsync_time = time_type(0);
|
||||
m_last_vsync_time = time_type(0);
|
||||
m_clock_period = time_type(0);
|
||||
|
||||
/* sync separator */
|
||||
m_vsync_filter = 0.0;
|
||||
m_vsync_threshold = 0.0;
|
||||
m_vsync_filter_timeconst = 0.0;
|
||||
|
||||
m_sig_vsync = 0;
|
||||
m_sig_composite = 0;
|
||||
m_sig_field = 0;
|
||||
m_cur_bm = 0;
|
||||
|
||||
m_bitmap[0] = nullptr;
|
||||
m_bitmap[1] = nullptr;
|
||||
|
||||
m_htotal = 0;
|
||||
m_vtotal = 0;
|
||||
|
||||
}
|
||||
|
||||
void dev_reset_helper()
|
||||
{
|
||||
m_last_sync_time = time_type(0);
|
||||
m_line_time = time_type(0);
|
||||
m_last_hsync_time = time_type(0);
|
||||
m_last_vsync_time = time_type(0);
|
||||
m_vsync_filter = 0;
|
||||
}
|
||||
|
||||
void recompute_parameters();
|
||||
void update_sync_channel(const time_type &time, const double newval);
|
||||
void update_bm(const time_type &time);
|
||||
void update_composite_monochrome(const time_type &time, const double newval);
|
||||
void update_red(const time_type &time, const double data);
|
||||
void update_green(const time_type &time, const double data);
|
||||
void update_blue(const time_type &time, const double data);
|
||||
void update_sync(const time_type &time, const double data);
|
||||
|
||||
const fixedfreq_monitor_desc &m_desc;
|
||||
fixedfreq_monitor_intf &m_intf;
|
||||
|
||||
double m_sync_signal;
|
||||
rgb_t m_col;
|
||||
int m_last_x;
|
||||
int m_last_y;
|
||||
time_type m_last_sync_time;
|
||||
time_type m_line_time;
|
||||
time_type m_last_hsync_time;
|
||||
time_type m_last_vsync_time;
|
||||
time_type m_clock_period;
|
||||
|
||||
/* sync separator */
|
||||
double m_vsync_filter;
|
||||
double m_vsync_threshold;
|
||||
double m_vsync_filter_timeconst;
|
||||
|
||||
int m_sig_vsync;
|
||||
int m_sig_composite;
|
||||
int m_sig_field;
|
||||
|
||||
std::unique_ptr<bitmap_rgb32> m_bitmap[2];
|
||||
int m_cur_bm;
|
||||
int m_htotal;
|
||||
int m_vtotal;
|
||||
};
|
||||
|
||||
// ======================> fixedfreq_device
|
||||
|
||||
class fixedfreq_device : public device_t, public device_video_interface
|
||||
class fixedfreq_device : public device_t, public device_video_interface,
|
||||
public fixedfreq_monitor_state::fixedfreq_monitor_intf
|
||||
{
|
||||
public:
|
||||
|
||||
using time_type = fixedfreq_monitor_state::time_type;
|
||||
|
||||
// construction/destruction
|
||||
fixedfreq_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
|
||||
|
||||
// inline configuration helpers
|
||||
void set_monitor_clock(uint32_t clock) { m_monitor_clock = clock; }
|
||||
void set_fieldcount(int count) { m_fieldcount = count; }
|
||||
void set_threshold(double threshold) { m_sync_threshold = threshold; }
|
||||
void set_gain(double gain) { m_gain = gain; }
|
||||
void set_monitor_clock(uint32_t clock) { m_monitor.m_monitor_clock = clock; }
|
||||
void set_fieldcount(int count) { m_monitor.m_fieldcount = count; }
|
||||
void set_threshold(double threshold) { m_monitor.m_sync_threshold = threshold; }
|
||||
void set_gain(double gain) { m_monitor.m_gain = gain; }
|
||||
void set_horz_params(int visible, int frontporch, int sync, int backporch)
|
||||
{
|
||||
m_hvisible = visible;
|
||||
m_hfrontporch = frontporch;
|
||||
m_hsync = sync;
|
||||
m_hbackporch = backporch;
|
||||
m_monitor.m_hvisible = visible;
|
||||
m_monitor.m_hfrontporch = frontporch;
|
||||
m_monitor.m_hsync = sync;
|
||||
m_monitor.m_hbackporch = backporch;
|
||||
}
|
||||
void set_vert_params(int visible, int frontporch, int sync, int backporch)
|
||||
{
|
||||
m_vvisible = visible;
|
||||
m_vfrontporch = frontporch;
|
||||
m_vsync = sync;
|
||||
m_vbackporch = backporch;
|
||||
m_monitor.m_vvisible = visible;
|
||||
m_monitor.m_vfrontporch = frontporch;
|
||||
m_monitor.m_vsync = sync;
|
||||
m_monitor.m_vbackporch = backporch;
|
||||
}
|
||||
void set_horz_scale(int hscale) { m_hscale = hscale; }
|
||||
void set_horz_scale(int hscale) { m_monitor.m_hscale = hscale; }
|
||||
|
||||
// pre-defined configurations
|
||||
void set_mode_ntsc720() //ModeLine "720x480@30i" 13.5 720 736 799 858 480 486 492 525 interlace -hsync -vsync
|
||||
@ -76,8 +229,6 @@ public:
|
||||
|
||||
protected:
|
||||
|
||||
typedef double time_type;
|
||||
|
||||
fixedfreq_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
// device-level overrides
|
||||
@ -87,53 +238,16 @@ protected:
|
||||
virtual void device_post_load() override;
|
||||
//virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
|
||||
|
||||
void update_screen_parameters(const time_type &refresh);
|
||||
void update_screen_parameters(const time_type &refresh) override;
|
||||
|
||||
private:
|
||||
|
||||
void update_sync_channel(const time_type &time, const double newval);
|
||||
void update_bm(const time_type &time);
|
||||
void recompute_parameters();
|
||||
|
||||
int m_htotal;
|
||||
int m_vtotal;
|
||||
int m_hscale;
|
||||
|
||||
double m_sync_signal;
|
||||
rgb_t m_col;
|
||||
int m_last_x;
|
||||
int m_last_y;
|
||||
time_type m_last_sync_time;
|
||||
time_type m_line_time;
|
||||
time_type m_last_hsync_time;
|
||||
time_type m_last_vsync_time;
|
||||
time_type m_refresh_period;
|
||||
time_type m_clock_period;
|
||||
std::unique_ptr<bitmap_rgb32> m_bitmap[2];
|
||||
int m_cur_bm;
|
||||
|
||||
/* adjustable by drivers */
|
||||
uint32_t m_monitor_clock;
|
||||
int m_hvisible;
|
||||
int m_hfrontporch;
|
||||
int m_hsync;
|
||||
int m_hbackporch;
|
||||
int m_vvisible;
|
||||
int m_vfrontporch;
|
||||
int m_vsync;
|
||||
int m_vbackporch;
|
||||
int m_fieldcount;
|
||||
double m_sync_threshold;
|
||||
double m_gain;
|
||||
fixedfreq_monitor_desc m_monitor;
|
||||
fixedfreq_monitor_state m_state;
|
||||
|
||||
/* sync separator */
|
||||
double m_vsync_filter;
|
||||
double m_vsync_threshold;
|
||||
double m_vsync_filter_timeconst;
|
||||
|
||||
int m_sig_vsync;
|
||||
int m_sig_composite;
|
||||
int m_sig_field;
|
||||
};
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user