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use cps1 code for the palette

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This commit is contained in:
Roberto Zandona 2008-04-13 09:55:03 +00:00
parent 553d449ee6
commit 8c6c1e80f9
1 changed files with 9 additions and 4 deletions
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13
src/mame/video/bionicc.c
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@ -131,11 +131,16 @@ WRITE16_HANDLER( bionicc_txvideoram_w )
WRITE16_HANDLER( bionicc_paletteram_w ) WRITE16_HANDLER( bionicc_paletteram_w )
{ {
/* The bottom bits are 'intensity' here, but level 2 of Top Secret shows that even int red, green, blue, bright;
when intensity is zero the colour is not reduced to pure black, (the sky should stay
at dark blue rather than absolute black) */
data = COMBINE_DATA(&paletteram16[offset]); data = COMBINE_DATA(&paletteram16[offset]);
paletteram16_RRRRGGGGBBBBIIII_word_w(machine,offset,(data & 0xfff0) | ((data & 0x0007) << 1) | 1, 0);
bright = 0x10 + (data&0x0f);
red = ((data>>12)&0x0f) * bright * 0x11 / 0x1f;
green = ((data>>8 )&0x0f) * bright * 0x11 / 0x1f;
blue = ((data>>4 )&0x0f) * bright * 0x11 / 0x1f;
palette_set_color (machine, offset, MAKE_RGB(red, green, blue));
} }
WRITE16_HANDLER( bionicc_scroll_w ) WRITE16_HANDLER( bionicc_scroll_w )