summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/video/seicross.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/video/seicross.cpp')
-rw-r--r--src/mame/video/seicross.cpp44
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));
}
}