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Diffstat (limited to 'src/mame/video/suprloco.cpp')
-rw-r--r--src/mame/video/suprloco.cpp49
1 files changed, 21 insertions, 28 deletions
diff --git a/src/mame/video/suprloco.cpp b/src/mame/video/suprloco.cpp
index 19401afaf4f..15608323be7 100644
--- a/src/mame/video/suprloco.cpp
+++ b/src/mame/video/suprloco.cpp
@@ -30,42 +30,35 @@
I'm not sure about the resistor values, I'm using the Galaxian ones.
***************************************************************************/
-PALETTE_INIT_MEMBER(suprloco_state, suprloco)
+void suprloco_state::suprloco_palette(palette_device &palette) const
{
const uint8_t *color_prom = memregion("proms")->base();
- int i;
-
- for (i = 0;i < 512;i++)
+ for (int i = 0; i < 512; 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 */
+ 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 = 0;
- bit1 = (color_prom[i] >> 6) & 0x01;
- bit2 = (color_prom[i] >> 7) & 0x01;
- b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
+ bit1 = BIT(color_prom[i], 6);
+ bit2 = BIT(color_prom[i], 7);
+ int const b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
- palette.set_pen_color(i,rgb_t(r,g,b));
+ palette.set_pen_color(i, rgb_t(r, g, b));
- /* hack: generate a second bank of sprite palette with red changed to purple */
+ // hack: generate a second bank of sprite palette with red changed to purple
if (i >= 256)
- {
- if ((i & 0x0f) == 0x09)
- palette.set_pen_color(i+256,rgb_t(r,g,0xff));
- else
- palette.set_pen_color(i+256,rgb_t(r,g,b));
- }
+ palette.set_pen_color(i + 256, rgb_t(r, g, ((i & 0x0f) == 0x09) ? 0xff : b));
}
}