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cntsteer.cpp: Added proms to Counter Steer, added preliminary color prom decoding [Anonymous, Angelo Salese]

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This commit is contained in:
Angelo Salese 2019-05-21 00:58:43 +02:00
parent fd9cc04c4e
commit 61cc8ef2d9
1 changed files with 39 additions and 11 deletions
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50
src/mame/drivers/cntsteer.cpp
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@ -114,6 +114,7 @@ public:
DECLARE_MACHINE_START(zerotrgt);
DECLARE_MACHINE_RESET(zerotrgt);
DECLARE_VIDEO_START(zerotrgt);
void cntsteer_palette(palette_device &palette) const;
void zerotrgt_palette(palette_device &palette) const;
uint32_t screen_update_cntsteer(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint32_t screen_update_zerotrgt(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
@ -132,6 +133,33 @@ public:
};
void cntsteer_state::cntsteer_palette(palette_device &palette) const
{
const uint8_t *color_prom = memregion("proms")->base();
for (int i = 0; i < palette.entries(); i++)
{
int bit0, bit1, bit2;
// red component
bit0 = ((color_prom[i + 0x000] >> 0) & 0x01);
bit1 = ((color_prom[i + 0x100] >> 0) & 0x01);
bit2 = ((color_prom[i + 0x200] >> 0) & 0x01);
int const g = (0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2);
// green component
bit0 = ((color_prom[i + 0x000] >> 1) & 0x01);
bit1 = ((color_prom[i + 0x100] >> 1) & 0x01);
bit2 = ((color_prom[i + 0x200] >> 1) & 0x01);
int const r = (0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2);
// blue component
bit0 = ((color_prom[i + 0x000] >> 2) & 0x01);
bit1 = ((color_prom[i + 0x100] >> 2) & 0x01);
bit2 = ((color_prom[i + 0x200] >> 2) & 0x01);
int const b = (0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2);
palette.set_pen_color(i, rgb_t(r, g, b));
}
}
void cntsteer_state::zerotrgt_palette(palette_device &palette) const
{
const uint8_t *color_prom = memregion("proms")->base();
@ -860,16 +888,16 @@ static const gfx_layout tilelayout =
};
static GFXDECODE_START( gfx_cntsteer )
GFXDECODE_ENTRY( "gfx1", 0x00000, cntsteer_charlayout, 0, 256 ) /* Only 1 used so far :/ */
GFXDECODE_ENTRY( "gfx2", 0x00000, sprites, 0, 256 )
GFXDECODE_ENTRY( "gfx3", 0x00000, tilelayout, 0, 256 )
GFXDECODE_ENTRY( "gfx1", 0x00000, cntsteer_charlayout, 0, 0x40 )
GFXDECODE_ENTRY( "gfx2", 0x00000, sprites, 0, 0x20 )
GFXDECODE_ENTRY( "gfx3", 0x00000, tilelayout, 0, 0x20 )
GFXDECODE_END
static GFXDECODE_START( gfx_zerotrgt )
GFXDECODE_ENTRY( "gfx1", 0x00000, zerotrgt_charlayout, 0, 256 ) /* Only 1 used so far :/ */
GFXDECODE_ENTRY( "gfx2", 0x00000, sprites, 0, 256 )
GFXDECODE_ENTRY( "gfx3", 0x00000, tilelayout, 0, 256 )
GFXDECODE_ENTRY( "gfx1", 0x00000, zerotrgt_charlayout, 0, 0x40 )
GFXDECODE_ENTRY( "gfx2", 0x00000, sprites, 0, 0x20 )
GFXDECODE_ENTRY( "gfx3", 0x00000, tilelayout, 0, 0x20 )
GFXDECODE_END
/***************************************************************************/
@ -951,8 +979,7 @@ void cntsteer_state::cntsteer(machine_config &config)
config.m_perfect_cpu_quantum = subtag("subcpu");
GFXDECODE(config, m_gfxdecode, m_palette, gfx_cntsteer);
PALETTE(config, m_palette).set_entries(256);
// MCFG_PALETTE_INIT_OWNER(cntsteer_state,zerotrgt)
PALETTE(config, m_palette, FUNC(cntsteer_state::cntsteer_palette), 256);
MCFG_VIDEO_START_OVERRIDE(cntsteer_state,cntsteer)
@ -1055,10 +1082,11 @@ ROM_START( cntsteer )
ROM_LOAD( "by18", 0x20000, 0x2000, CRC(1e9ce047) SHA1(7579ba6b401eb1bfc7d2d9311ebab623bd1095a2) )
ROM_LOAD( "by20", 0x30000, 0x2000, CRC(e2198c9e) SHA1(afea262db9154301f4b9e53e1fc91985dd934170) )
/* All 82s129 or equivalent */
ROM_REGION( 0x300, "proms", ROMREGION_ERASE00 )
ROM_LOAD( "by21.j4", 0x0000, 0x100, NO_DUMP ) /* All 82s129 or equivalent */
ROM_LOAD( "by22.j5", 0x0100, 0x100, NO_DUMP )
ROM_LOAD( "by23.j6", 0x0200, 0x100, NO_DUMP )
ROM_LOAD( "by21.j4", 0x0000, 0x100, CRC(10e2cab4) SHA1(c266cb26b9aa3df9385605bd75a37a66ab946051) )
ROM_LOAD( "by22.j5", 0x0100, 0x100, CRC(8676ad80) SHA1(891c85a88fda27e7a984eec1011ef931605a443f) )
ROM_LOAD( "by23.j6", 0x0200, 0x100, CRC(08dfd511) SHA1(45d107533864bd21d0c4bad9f16cf75bc5e5e6a2) )
ROM_END
ROM_START( zerotrgt )