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| author | Jens Arnold <amiconn@rockbox.org> | 2008-04-04 22:13:53 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2008-04-04 22:13:53 +0000 |
| commit | 32bd0f8ab1526e32011937a827b6e44476a6743e (patch) | |
| tree | c0bdfebc167a0b06daba4de23beba31027b0d693 /apps/plugins/lib | |
| parent | 391377725ea18688aa93c542a3b470df73b88f51 (diff) | |
| download | rockbox-32bd0f8ab1526e32011937a827b6e44476a6743e.zip rockbox-32bd0f8ab1526e32011937a827b6e44476a6743e.tar.gz rockbox-32bd0f8ab1526e32011937a827b6e44476a6743e.tar.bz2 rockbox-32bd0f8ab1526e32011937a827b6e44476a6743e.tar.xz | |
Greyscale library: Optionally put the greyscale ISR on COP on portalplayertargets (only use with the grey_info structure in IRAM atm\!). This speeds up doom by ~50%, and makes mpegplayer work without stuttering audio on targets using it (measured on iPod 2nd Gen and Mini 2nd Gen). It needs corelocking certain functions in the LCD driver on 1st/2nd Gen.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16973 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/lib')
| -rw-r--r-- | apps/plugins/lib/grey.h | 6 | ||||
| -rw-r--r-- | apps/plugins/lib/grey_core.c | 21 |
2 files changed, 20 insertions, 7 deletions
diff --git a/apps/plugins/lib/grey.h b/apps/plugins/lib/grey.h index 3f7be44..95dca6b 100644 --- a/apps/plugins/lib/grey.h +++ b/apps/plugins/lib/grey.h @@ -45,8 +45,10 @@ #define GREY_INFO_STRUCT_IRAM struct _grey_info _grey_info IBSS_ATTR; /* Features you can request on library init (ORed together): */ -#define GREY_BUFFERED 0x0001 -#define GREY_RAWMAPPED 0x0002 +#define GREY_BUFFERED 0x0001 /* Use a chunky buffer */ +#define GREY_RAWMAPPED 0x0002 /* No gamma & LCD linearisation */ +#define GREY_ON_COP 0x0004 /* Run ISR on COP (PP targets) */ + /* TODO: only usable in conjunction with GREY_INFO_STRUCT_IRAM atm */ /* Library initialisation and release */ bool grey_init(struct plugin_api* newrb, unsigned char *gbuf, long gbuf_size, diff --git a/apps/plugins/lib/grey_core.c b/apps/plugins/lib/grey_core.c index 20c33a6..1326599 100644 --- a/apps/plugins/lib/grey_core.c +++ b/apps/plugins/lib/grey_core.c @@ -495,11 +495,12 @@ bool grey_init(struct plugin_api* newrb, unsigned char *gbuf, long gbuf_size, #endif plane_size = _GREY_MULUQ(width, height); -#ifdef CPU_COLDFIRE - plane_size += (-plane_size) & 0xf; /* All buffers should be line aligned */ +#if defined(CPU_COLDFIRE) /* Buffers should be line aligned */ \ + || defined(CPU_PP) && (NUM_CORES > 1) /* Buffers must be cache line aligned */ + plane_size += (-plane_size) & 0xf; buftaken = (-(long)gbuf) & 0xf; -#else - buftaken = (-(long)gbuf) & 3; /* All buffers must be long aligned. */ +#else /* Buffers must be 32 bit aligned. */ + buftaken = (-(long)gbuf) & 3; #endif gbuf += buftaken; @@ -509,6 +510,10 @@ bool grey_init(struct plugin_api* newrb, unsigned char *gbuf, long gbuf_size, gbuf += plane_size; buftaken += plane_size; } +#if NUM_CORES > 1 /* Values and phases must be uncached when running on COP */ + if (features & GREY_ON_COP) + gbuf = UNCACHED_ADDR(gbuf); +#endif _grey_info.values = gbuf; gbuf += plane_size; _grey_info.phases = gbuf; @@ -602,8 +607,14 @@ void grey_show(bool enable) #ifdef NEED_BOOST _grey_info.rb->cpu_boost(true); #endif +#if NUM_CORES > 1 + _grey_info.rb->timer_register(1, NULL, TIMER_FREQ / LCD_SCANRATE, + 1, _timer_isr, + (_grey_info.flags & GREY_ON_COP) ? COP : CPU); +#else _grey_info.rb->timer_register(1, NULL, TIMER_FREQ / LCD_SCANRATE, 1, - _timer_isr IF_COP(, CPU)); + _timer_isr); +#endif #endif /* !SIMULATOR */ _grey_info.rb->screen_dump_set_hook(grey_screendump_hook); } |