diff options
Diffstat (limited to 'src/mame/video/gunsmoke.cpp')
-rw-r--r-- | src/mame/video/gunsmoke.cpp | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/src/mame/video/gunsmoke.cpp b/src/mame/video/gunsmoke.cpp index f8066e0d97b..1706da7eda1 100644 --- a/src/mame/video/gunsmoke.cpp +++ b/src/mame/video/gunsmoke.cpp @@ -18,42 +18,41 @@ ***************************************************************************/ -PALETTE_INIT_MEMBER(gunsmoke_state, gunsmoke) +void gunsmoke_state::gunsmoke_palette(palette_device &palette) const { const uint8_t *color_prom = memregion("proms")->base(); - int i; - /* create a lookup table for the palette */ - for (i = 0; i < 0x100; i++) + // create a lookup table for the palette + for (int i = 0; i < 0x100; i++) { - int r = pal4bit(color_prom[i + 0x000]); - int g = pal4bit(color_prom[i + 0x100]); - int b = pal4bit(color_prom[i + 0x200]); + int const r = pal4bit(color_prom[i + 0x000]); + int const g = pal4bit(color_prom[i + 0x100]); + int const b = pal4bit(color_prom[i + 0x200]); palette.set_indirect_color(i, rgb_t(r, g, b)); } - /* color_prom now points to the beginning of the lookup table */ + // color_prom now points to the beginning of the lookup table color_prom += 0x300; - /* characters use colors 0x40-0x4f */ - for (i = 0; i < 0x80; i++) + // characters use colors 0x40-0x4f + for (int i = 0; i < 0x80; i++) { - uint8_t ctabentry = color_prom[i] | 0x40; + uint8_t const ctabentry = color_prom[i] | 0x40; palette.set_pen_indirect(i, ctabentry); } - /* background tiles use colors 0-0x3f */ - for (i = 0x100; i < 0x200; i++) + // background tiles use colors 0-0x3f + for (int i = 0x100; i < 0x200; i++) { - uint8_t ctabentry = color_prom[i] | ((color_prom[i + 0x100] & 0x03) << 4); + uint8_t const ctabentry = color_prom[i] | ((color_prom[i + 0x100] & 0x03) << 4); palette.set_pen_indirect(i - 0x80, ctabentry); } - /* sprites use colors 0x80-0xff */ - for (i = 0x300; i < 0x400; i++) + // sprites use colors 0x80-0xff + for (int i = 0x300; i < 0x400; i++) { - uint8_t ctabentry = color_prom[i] | ((color_prom[i + 0x100] & 0x07) << 4) | 0x80; + uint8_t const ctabentry = color_prom[i] | ((color_prom[i + 0x100] & 0x07) << 4) | 0x80; palette.set_pen_indirect(i - 0x180, ctabentry); } } |