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Karl Kurbjun's patch #1407719:

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Here's another patch for rockboy that adds automatic frameskip (it's pretty
rough as I haven't figured out an accurate timer), fullscreen support on the
H300, and a bit of assembly and some IRAM stuff. I'm not sure if I'm doing the
IRAM stuff correct though as it doesn't seem to make much of a difference if
any. I've also added a statistics option that will show how many frames per
second the gameboy is seeing (not what the player is getting) and what the
frameskip is at. When you enable stats sometimes you have to go back into the
menu and then come out to clear erronous values.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8397 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Daniel Stenberg 2006-01-20 13:05:52 +00:00
parent c05cd1676f
commit 137fb6cb9f
27 changed files with 490 additions and 213 deletions
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41
apps/plugins/rockboy/emu.c
View file

@ -58,15 +58,16 @@ void emu_step(void)
cpu_emulate(cpu.lcdc);
}
struct options options;
/* This mess needs to be moved to another module; it's just here to
* make things work in the mean time. */
//extern struct plugin_api* rb;
void emu_run(void)
{
void *timer = sys_timer();
int delay;
// void *timer = sys_timer();
int framesin=0,frames=0,timeten=*rb->current_tick, timehun=*rb->current_tick;
// int delay;
vid_begin();
lcd_begin();
@ -79,18 +80,17 @@ void emu_run(void)
while (R_LY > 0 && R_LY < 144)
emu_step();
vid_end();
rtc_tick();
sound_mix();
if (!pcm_submit())
{
delay = framelen - sys_elapsed(timer);
/* delay = framelen - sys_elapsed(timer);
sys_sleep(delay);
sys_elapsed(timer);
sys_elapsed(timer);*/
}
doevents();
vid_begin();
// if (framecount) { if (!--framecount) die("finished\n"); }
if (!(R_LCDC & 0x80))
cpu_emulate(32832);
@ -98,11 +98,34 @@ void emu_run(void)
while (R_LY > 0) /* wait for next frame */
emu_step();
rb->yield();
frames++;
framesin++;
if(*rb->current_tick-timeten>=20)
{
timeten=*rb->current_tick;
if(framesin<12) options.frameskip++;
if(framesin>12) options.frameskip--;
if(options.frameskip>options.maxskip) options.frameskip=options.maxskip;
if(options.frameskip<0) options.frameskip=0;
framesin=0;
}
if(options.showstats)
{
if(*rb->current_tick-timehun>=100) {
options.fps=frames;
frames=0;
timehun=*rb->current_tick;
}
}
}
#if !defined(SIMULATOR) && defined(HAVE_ADJUSTABLE_CPU_FREQ)
rb->cpu_boost(false);
#endif
}