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stuntair - basic bg tilemap hookup

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This commit is contained in:
David Haywood 2013-05-18 11:02:36 +00:00
parent 7fb501d38c
commit 2f9ca304db
1 changed files with 40 additions and 4 deletions
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44
src/mame/drivers/stuntair.c
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@ -81,18 +81,28 @@ public:
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_fgram(*this, "fgram")
m_fgram(*this, "fgram"),
m_bgram(*this, "bgram"),
m_bgattrram(*this, "bgattrram")
{ }
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
required_shared_ptr<UINT8> m_fgram;
required_shared_ptr<UINT8> m_bgram;
required_shared_ptr<UINT8> m_bgattrram;
tilemap_t *m_fg_tilemap;
tilemap_t *m_bg_tilemap;
DECLARE_WRITE8_MEMBER(stuntair_fgram_w);
TILE_GET_INFO_MEMBER(get_stuntair_fg_tile_info);
DECLARE_WRITE8_MEMBER(stuntair_bgram_w);
DECLARE_WRITE8_MEMBER(stuntair_bgattrram_w);
TILE_GET_INFO_MEMBER(get_stuntair_bg_tile_info);
DECLARE_READ8_MEMBER(stuntair_unk_r)
{
return 0xff;
@ -110,9 +120,9 @@ public:
static ADDRESS_MAP_START( stuntair_map, AS_PROGRAM, 8, stuntair_state )
AM_RANGE(0x0000, 0x9fff) AM_ROM
AM_RANGE(0xc000, 0xc7ff) AM_RAM // bg
AM_RANGE(0xc800, 0xcfff) AM_RAM // bg attr
AM_RANGE(0xd000, 0xd3ff) AM_RAM
AM_RANGE(0xc000, 0xc7ff) AM_RAM
AM_RANGE(0xc800, 0xcbff) AM_RAM_WRITE(stuntair_bgattrram_w) AM_SHARE("bgattrram") // bg attr
AM_RANGE(0xd000, 0xd3ff) AM_RAM_WRITE(stuntair_bgram_w) AM_SHARE("bgram") // bg
AM_RANGE(0xd800, 0xdfff) AM_RAM
AM_RANGE(0xe000, 0xe000) AM_READ(stuntair_unk_r) AM_WRITENOP
@ -215,14 +225,40 @@ WRITE8_MEMBER(stuntair_state::stuntair_fgram_w)
m_fg_tilemap->mark_tile_dirty(offset);
}
WRITE8_MEMBER(stuntair_state::stuntair_bgram_w)
{
m_bgram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset);
}
TILE_GET_INFO_MEMBER(stuntair_state::get_stuntair_bg_tile_info)
{
int tileno = m_bgram[tile_index];
tileno |= (m_bgattrram[tile_index] & 0x08)<<5;
SET_TILE_INFO_MEMBER(1, tileno, 0, 0);
}
WRITE8_MEMBER(stuntair_state::stuntair_bgattrram_w)
{
m_bgattrram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset);
}
void stuntair_state::video_start()
{
m_fg_tilemap = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(stuntair_state::get_stuntair_fg_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 32, 32);
m_fg_tilemap->set_transparent_pen(0);
m_bg_tilemap = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(stuntair_state::get_stuntair_bg_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 32, 32);
}
UINT32 stuntair_state::screen_update_stuntair(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_bg_tilemap->draw(bitmap, cliprect, 0, 0);
m_fg_tilemap->draw(bitmap, cliprect, 0, 0);
return 0;
}