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taito/taito_f3_v.cpp: Implemented line RAM palette offset effect. (#10943)

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ywy 2023-02-28 07:52:31 -08:00 committed by GitHub
parent 8ded6a1eff
commit e629a85548
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2 changed files with 15 additions and 5 deletions
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2
src/mame/taito/taito_f3.h
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@ -186,6 +186,7 @@ protected:
u32 x_zoom[256]{};
u32 clip0[256]{};
u32 clip1[256]{};
u16 pal_add[256]{};
};
struct f3_spritealpha_line_inf
@ -272,6 +273,7 @@ protected:
u8 *m_tsrc_s[5]{};
u32 m_x_count[5]{};
u32 m_x_zoom[5]{};
u16 m_pal_add[5]{};
std::unique_ptr<tempsprite[]> m_spritelist;
const tempsprite *m_sprite_end = nullptr;
std::unique_ptr<f3_playfield_line_inf[]> m_pf_line_inf;

18
src/mame/taito/taito_f3_v.cpp
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@ -65,7 +65,7 @@ Line ram memory map:
Where bit 1 of x enables effect on playfield 2
Where bit 2 of x enables effect on playfield 3
Where bit 3 of x enables effect on playfield 4
0x0a00: Assumed unused.
0x0a00: Palette add line control ram (256 lines)
0x0c00: Rowscroll line control ram (256 lines)
280x: Where bit 0 of x enables effect on playfield 1
Where bit 1 of x enables effect on playfield 2
@ -139,7 +139,7 @@ Line ram memory map:
Playfield 2 & 4 registers seem to be interleaved, playfield 2 Y zoom is stored where you would
expect playfield 4 y zoom to be and vice versa.
0x9000: Palette add (can affect opacity) [ not emulated ]
0x9000: Palette add (can affect opacity)
0xa000: Playfield 1 rowscroll (1 word per line, 256 lines)
0xa200: Playfield 2 rowscroll
@ -1288,6 +1288,7 @@ void taito_f3_state::init_alpha_blend_func()
m_clip_ar[pf_num] = line_tmp->clip0[y] >> 16; \
m_clip_bl[pf_num] = line_tmp->clip1[y] & 0xffff; \
m_clip_br[pf_num] = line_tmp->clip1[y] >> 16; \
m_pal_add[pf_num] = line_tmp->pal_add[y]; \
}
#define CULC_PIXMAP_POINTER(pf_num) \
@ -1323,7 +1324,7 @@ void taito_f3_state::init_alpha_blend_func()
{ \
m_tval = *m_tsrc[pf_num]; \
if (m_tval & 0xf0) \
if ((this->*m_dpix_lp[pf_num][m_pval >> 4])(clut[*m_src[pf_num]])) { *dsti = m_dval; break; } \
if ((this->*m_dpix_lp[pf_num][m_pval >> 4])(clut[(*m_src[pf_num] + m_pal_add[pf_num]) & 0x1fff])) { *dsti = m_dval; break; } \
}
@ -1725,12 +1726,12 @@ void taito_f3_state::get_line_ram_info(tilemap_t *tmap, int sx, int sy, int pos,
f3_playfield_line_inf *line_t = &m_pf_line_inf[pos];
int y_start, y_end, y_inc;
int line_base, zoom_base, col_base, pri_base, inc;
int line_base, zoom_base, col_base, pri_base, pal_add_base, inc;
int line_enable;
int colscroll = 0, x_offset = 0, line_zoom = 0;
u32 _y_zoom[256];
u16 pri = 0;
u16 pri = 0, pal_add = 0;
int bit_select = 1 << pos;
int _colscroll[256];
@ -1745,6 +1746,7 @@ void taito_f3_state::get_line_ram_info(tilemap_t *tmap, int sx, int sy, int pos,
zoom_base = 0x81fe;// + (pos << 9);
col_base = 0x41fe + (pos << 9);
pri_base = 0xb1fe + (pos << 9);
pal_add_base = 0x91fe + (pos << 9);
inc = -2;
y_start = 255;
y_end = -1;
@ -1764,6 +1766,7 @@ void taito_f3_state::get_line_ram_info(tilemap_t *tmap, int sx, int sy, int pos,
zoom_base = 0x8000;// + (pos << 9);
col_base = 0x4000 + (pos << 9);
pri_base = 0xb000 + (pos << 9);
pal_add_base = 0x9000 + (pos << 9);
inc = 2;
y_start = 0;
y_end = 256;
@ -1813,6 +1816,9 @@ void taito_f3_state::get_line_ram_info(tilemap_t *tmap, int sx, int sy, int pos,
// Column scroll only affects playfields 2 & 3
if (pos >= 2 && m_line_ram[0x000 + y] & bit_select)
colscroll = (m_line_ram[col_base / 2] >> 0) & 0x3ff;
if (m_line_ram[0x500 + y] & bit_select)
pal_add = (m_line_ram[pal_add_base / 2] & 0x1ff) * 16;
}
if (!pri || (!m_flipscreen && y < 24) || (m_flipscreen && y > 231) ||
@ -1847,11 +1853,13 @@ void taito_f3_state::get_line_ram_info(tilemap_t *tmap, int sx, int sy, int pos,
line_t->x_zoom[y] = 0x10000 - (line_zoom & 0xff00);
line_t->alpha_mode[y] = line_enable;
line_t->pri[y] = pri;
line_t->pal_add[y] = pal_add;
zoom_base += inc;
line_base += inc;
col_base += inc;
pri_base += inc;
pal_add_base += inc;
y += y_inc;
}