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Sped up ertictac driver VIDEO_UPDATE [Christophe Jaillet]

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> -----Original Message-----
> From: Christophe Jaillet [mailto:christophe.jaillet@wanadoo.fr]
> Sent: Saturday, October 17, 2009 9:01 AM
> To: submit@mamedev.org
> Subject: Speedup drivers/ertictac.c
>
> Hi,
>
> in the driver 'drivers/ertictac.c' an array of pen is initialised on
> each
> VIDEO_UPDATE.
> There is no need to do so and this array can be computed only once in
> VIDEO_START.
>
> Hope this help.
> Best regards,
>
> CJ
This commit is contained in:
Phil Bennett 2009-10-21 10:58:33 +00:00
parent 77040ebfee
commit 0279e10c26
1 changed files with 5 additions and 6 deletions
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11
src/mame/drivers/ertictac.c
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@ -29,10 +29,13 @@ TODO:
#include "driver.h" #include "driver.h"
#include "cpu/arm/arm.h" #include "cpu/arm/arm.h"
#define NUM_PENS (0x100)
static UINT32 *ertictac_mainram; static UINT32 *ertictac_mainram;
static UINT32 *ertictac_videoram; static UINT32 *ertictac_videoram;
static UINT32 IRQSTA, IRQMSKA, IRQMSKB, FIQMSK, T1low, T1high; static UINT32 IRQSTA, IRQMSKA, IRQMSKB, FIQMSK, T1low, T1high;
static UINT32 vidFIFO[256]; static UINT32 vidFIFO[256];
static pen_t pens[NUM_PENS];
static WRITE32_HANDLER(video_fifo_w) static WRITE32_HANDLER(video_fifo_w)
{ {
@ -339,9 +342,7 @@ static INTERRUPT_GEN( ertictac_interrupt )
} }
#define NUM_PENS (0x100) static VIDEO_START( ertictac )
static void get_pens(pen_t *pens)
{ {
int color; int color;
@ -360,9 +361,6 @@ static void get_pens(pen_t *pens)
static VIDEO_UPDATE( ertictac ) static VIDEO_UPDATE( ertictac )
{ {
int y, x; int y, x;
pen_t pens[NUM_PENS];
get_pens(pens);
for (y = cliprect->min_y; y <= cliprect->max_y; y++) for (y = cliprect->min_y; y <= cliprect->max_y; y++)
for (x = 0; x < 0x140; x += 4) for (x = 0; x < 0x140; x += 4)
@ -395,6 +393,7 @@ static MACHINE_DRIVER_START( ertictac )
MDRV_SCREEN_SIZE(320, 256) MDRV_SCREEN_SIZE(320, 256)
MDRV_SCREEN_VISIBLE_AREA(0, 319, 0, 255) MDRV_SCREEN_VISIBLE_AREA(0, 319, 0, 255)
MDRV_VIDEO_START(ertictac)
MDRV_VIDEO_UPDATE(ertictac) MDRV_VIDEO_UPDATE(ertictac)
MACHINE_DRIVER_END MACHINE_DRIVER_END