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Fixes for screenless games.

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This commit is contained in:
Aaron Giles 2008-02-23 18:21:32 +00:00
parent 5d63aae855
commit 29bc8049cd
2 changed files with 13 additions and 7 deletions
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18
src/emu/cpuexec.c
View File

@ -163,11 +163,12 @@ void cpu_compute_vblank_timing(running_machine *machine);
void cpuexec_init(running_machine *machine)
{
int numscreens = video_screen_count(machine->config);
int cpunum;
/* if there has been no VBLANK time specified in the MACHINE_DRIVER, compute it now
from the visible area */
if (machine->screen[0].vblank == 0 && !machine->screen[0].oldstyle_vblank_supplied)
if (numscreens > 0 && machine->screen[0].vblank == 0 && !machine->screen[0].oldstyle_vblank_supplied)
machine->screen[0].vblank = (machine->screen[0].refresh / machine->screen[0].height) * (machine->screen[0].height - (machine->screen[0].visarea.max_y + 1 - machine->screen[0].visarea.min_y));
/* allocate vblank and refresh timers, and compute the initial timing */
@ -866,10 +867,14 @@ void watchdog_enable(running_machine *machine, int enable)
void cpu_compute_vblank_timing(running_machine *machine)
{
refresh_period = attotime_make(0, machine->screen[0].refresh);
int numscreens = video_screen_count(machine->config);
attoseconds_t refresh_attosecs;
refresh_attosecs = (numscreens == 0) ? HZ_TO_ATTOSECONDS(60) : machine->screen[0].refresh;
refresh_period = attotime_make(0, refresh_attosecs);
/* recompute the vblank period */
vblank_period = attotime_make(0, machine->screen[0].refresh / (vblank_multiplier ? vblank_multiplier : 1));
vblank_period = attotime_make(0, refresh_attosecs / (vblank_multiplier ? vblank_multiplier : 1));
if (vblank_timer != NULL && timer_enable(vblank_timer, FALSE))
{
attotime remaining = timer_timeleft(vblank_timer);
@ -1161,6 +1166,8 @@ static void compute_perfect_interleave(running_machine *machine)
static void cpu_inittimers(running_machine *machine)
{
int numscreens = video_screen_count(machine->config);
attoseconds_t refresh_attosecs;
attotime first_time;
int cpunum, max, ipf;
@ -1171,7 +1178,8 @@ static void cpu_inittimers(running_machine *machine)
ipf = machine->config->cpu_slices_per_frame;
if (ipf <= 0)
ipf = 1;
timeslice_period = attotime_make(0, machine->screen[0].refresh / ipf);
refresh_attosecs = (numscreens == 0) ? HZ_TO_ATTOSECONDS(60) : machine->screen[0].refresh;
timeslice_period = attotime_make(0, refresh_attosecs / ipf);
timeslice_timer = timer_alloc(cpu_timeslicecallback, NULL);
timer_adjust_periodic(timeslice_timer, timeslice_period, 0, timeslice_period);
@ -1220,7 +1228,7 @@ static void cpu_inittimers(running_machine *machine)
}
/* allocate a vblank timer at the frame rate * the LCD number of interrupts per frame */
vblank_period = attotime_make(0, machine->screen[0].refresh / vblank_multiplier);
vblank_period = attotime_make(0, refresh_attosecs / vblank_multiplier);
vblank_countdown = vblank_multiplier;
/* allocate an update timer that will be used to time the actual screen updates */

2
src/emu/devintrf.c
View File

@ -285,8 +285,6 @@ const device_config *device_list_find_by_index(const device_config *listhead, de
{
const device_config *curdev;
assert(listhead != NULL);
/* find the device in the list */
for (curdev = listhead; curdev != NULL; curdev = curdev->next)
if (device_matches_type(curdev, type) && index-- == 0)