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1942.c: colortables, you're doing it wrong (nw)

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This commit is contained in:
Alex W. Jackson 2014-02-01 21:06:58 +00:00
parent 6707c2fef5
commit 491f77d5f9
2 changed files with 10 additions and 17 deletions
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1
src/mame/includes/1942.h
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@ -27,7 +27,6 @@ public:
tilemap_t *m_bg_tilemap;
int m_palette_bank;
UINT8 m_scroll[2];
rgb_t palette[256];
void create_palette();
void palette_init_1942p();
DECLARE_WRITE8_MEMBER(c1942p_palette_w);

26
src/mame/video/1942.c
View File

@ -29,6 +29,8 @@ void _1942_state::create_palette()
const UINT8 *color_prom = memregion("proms")->base();
int i;
machine().colortable = colortable_alloc(machine(), 256);
for (i = 0; i < 256; i++)
{
int bit0, bit1, bit2, bit3, r, g, b;
@ -52,14 +54,12 @@ void _1942_state::create_palette()
bit3 = (color_prom[i + 2 * 256] >> 3) & 0x01;
b = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
palette[i] = MAKE_RGB(r,g,b);
colortable_palette_set_color(machine().colortable,i,MAKE_RGB(r,g,b));
}
}
void _1942_state::palette_init()
{
machine().colortable = colortable_alloc(machine(), 0x600);
create_palette();
const UINT8 *color_prom = memregion("proms")->base();
@ -72,30 +72,24 @@ void _1942_state::palette_init()
colorbase = 0;
for (i = 0; i < 64 * 4; i++)
{
colortable_palette_set_color(machine().colortable, colorbase + i, palette[0x80 | *color_prom++]);
colortable_entry_set_value(machine().colortable, colorbase + i, 0x80 | *color_prom++);
}
colorbase += 64 * 4;
/* background tiles use palette entries 0-63 in four banks */
for (i = 0; i < 32 * 8; i++)
{
colortable_palette_set_color(machine().colortable, colorbase + 0 * 32 * 8 + i, palette[0x00 | *color_prom]);
colortable_palette_set_color(machine().colortable, colorbase + 1 * 32 * 8 + i, palette[0x10 | *color_prom]);
colortable_palette_set_color(machine().colortable, colorbase + 2 * 32 * 8 + i, palette[0x20 | *color_prom]);
colortable_palette_set_color(machine().colortable, colorbase + 3 * 32 * 8 + i, palette[0x30 | *color_prom]);
colortable_entry_set_value(machine().colortable, colorbase + 0 * 32 * 8 + i, 0x00 | *color_prom);
colortable_entry_set_value(machine().colortable, colorbase + 1 * 32 * 8 + i, 0x10 | *color_prom);
colortable_entry_set_value(machine().colortable, colorbase + 2 * 32 * 8 + i, 0x20 | *color_prom);
colortable_entry_set_value(machine().colortable, colorbase + 3 * 32 * 8 + i, 0x30 | *color_prom);
color_prom++;
}
colorbase += 4 * 32 * 8;
/* sprites use palette entries 64-79 */
for (i = 0; i < 16 * 16; i++)
colortable_palette_set_color(machine().colortable, colorbase + i, palette[0x40 | *color_prom++]);
for (i = 0; i < 0x600; i++)
{
colortable_entry_set_value(machine().colortable, i, i);
}
colortable_entry_set_value(machine().colortable, colorbase + i, 0x40 | *color_prom++);
}
void _1942_state::palette_init_1942p()
@ -196,7 +190,7 @@ WRITE8_MEMBER(_1942_state::c1942_palette_bank_w)
{
if (m_palette_bank != data)
{
m_palette_bank = data;
m_palette_bank = data & 3;
m_bg_tilemap->mark_all_dirty();
}
}