diff options
Diffstat (limited to 'src/mame/video/seicross.cpp')
-rw-r--r-- | src/mame/video/seicross.cpp | 44 |
1 files changed, 21 insertions, 23 deletions
diff --git a/src/mame/video/seicross.cpp b/src/mame/video/seicross.cpp index 6ac6ea322b8..5d8556f3a10 100644 --- a/src/mame/video/seicross.cpp +++ b/src/mame/video/seicross.cpp @@ -27,32 +27,30 @@ bit 0 -- 1 kohm resistor -- RED ***************************************************************************/ -PALETTE_INIT_MEMBER(seicross_state, seicross) +void seicross_state::seicross_palette(palette_device &palette) const { - const uint8_t *color_prom = memregion("proms")->base(); - int i; + uint8_t const *const color_prom = memregion("proms")->base(); - - for (i = 0;i < palette.entries();i++) + for (int i = 0; i < palette.entries(); i++) { - int bit0,bit1,bit2,r,g,b; - - /* red component */ - bit0 = (color_prom[i] >> 0) & 0x01; - bit1 = (color_prom[i] >> 1) & 0x01; - bit2 = (color_prom[i] >> 2) & 0x01; - r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; - /* green component */ - bit0 = (color_prom[i] >> 3) & 0x01; - bit1 = (color_prom[i] >> 4) & 0x01; - bit2 = (color_prom[i] >> 5) & 0x01; - g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; - /* blue component */ - bit0 = (color_prom[i] >> 6) & 0x01; - bit1 = (color_prom[i] >> 7) & 0x01; - b = 0x4f * bit0 + 0xa8 * bit1; - - palette.set_pen_color(i,rgb_t(r,g,b)); + int bit0, bit1, bit2; + + // red component + bit0 = BIT(color_prom[i], 0); + bit1 = BIT(color_prom[i], 1); + bit2 = BIT(color_prom[i], 2); + int const r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + // green component + bit0 = BIT(color_prom[i], 3); + bit1 = BIT(color_prom[i], 4); + bit2 = BIT(color_prom[i], 5); + int const g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + // blue component + bit0 = BIT(color_prom[i], 6); + bit1 = BIT(color_prom[i], 7); + int const b = 0x4f * bit0 + 0xa8 * bit1; + + palette.set_pen_color(i, rgb_t(r, g, b)); } } |