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(mess) compis: better text mode output (nw)

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This commit is contained in:
cracyc 2013-08-22 14:39:33 +00:00
parent 6c7d00c958
commit b1043c9eaf
2 changed files with 51 additions and 35 deletions
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84
src/mess/drivers/compis.c
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@ -83,41 +83,11 @@ void compis_state::palette_init()
palette_set_color(machine(), 2, MAKE_RGB(0x00, 0xff, 0x00)); // highlight
}
UINT32 compis_state::screen_update_compis2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)// temporary
UINT32 compis_state::screen_update_compis2(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
UINT8 *m_p_chargen;
m_p_chargen = memregion("maincpu")->base()+0xca70; //bios0
if (m_p_chargen[0x214] != 0x08) m_p_chargen+= 0x10; //bios1
UINT8 y,ra,chr,gfx;
UINT16 sy=0,ma=0,x;
bitmap.fill(get_black_pen(machine()), cliprect);
for (y = 0; y < 25; y++)
{
for (ra = 0; ra < 16; ra++)
{
UINT16 *p = &bitmap.pix16(sy++);
for (x = ma; x < ma + 240; x+=3)
{
chr = m_video_ram[x & 0x1ffff];
if (chr < 0x20)
gfx = 0;
else
gfx = m_p_chargen[(chr<<4) | ra ];
*p++ = BIT(gfx, 0);
*p++ = BIT(gfx, 1);
*p++ = BIT(gfx, 2);
*p++ = BIT(gfx, 3);
*p++ = BIT(gfx, 4);
*p++ = BIT(gfx, 5);
*p++ = BIT(gfx, 6);
*p++ = BIT(gfx, 7);
}
}
ma+=240;
}
m_crtc->screen_update(screen, bitmap, cliprect);
return 0;
}
@ -132,11 +102,57 @@ static UPD7220_DISPLAY_PIXELS( hgdc_display_pixels )
bitmap.pix32(y, x + i) = palette[BIT((gfx >> i), 0)];
}
static UPD7220_DRAW_TEXT_LINE( hgdc_display_text )
{
compis_state *state = device->machine().driver_data<compis_state>();
const rgb_t *palette = palette_entry_list_raw(bitmap.palette());
int x;
int xi,yi;
int tile;
int attr;
UINT8 tile_data;
UINT8 pen;
UINT8 *m_p_chargen = state->memregion("maincpu")->base()+0xca70; //bios0
if (m_p_chargen[0x214] != 0x08) m_p_chargen+= 0x10; //bios1
for( x = 0; x < pitch; x++ )
{
tile = state->m_video_ram[(addr+x) & 0x1ffff];
attr = state->m_video_ram[(addr+x+1) & 0x1ffff];
for( yi = 0; yi < lr; yi++)
{
tile_data = (m_p_chargen[tile*8+yi]);
if(attr & 2)
tile_data^=0xff;
for( xi = 0; xi < 8; xi++)
{
int res_x,res_y;
res_x = x * 8 + xi;
res_y = y * lr + yi;
if(!device->machine().primary_screen->visible_area().contains(res_x, res_y))
continue;
if(yi >= 8)
pen = 0;
else
pen = ((tile_data >> xi) & 1) ? 1 : 0;
if(pen)
bitmap.pix32(res_y, res_x) = palette[pen];
}
}
}
}
static UPD7220_INTERFACE( hgdc_intf )
{
hgdc_display_pixels,
NULL,
hgdc_display_text,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL

2
src/mess/includes/compis.h
View File

@ -186,7 +186,7 @@ public:
virtual void machine_start();
virtual void machine_reset();
virtual void palette_init();
UINT32 screen_update_compis2(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
UINT32 screen_update_compis2(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(compis_vblank_int);
// TIMER_CALLBACK_MEMBER(internal_timer_int);
// TIMER_CALLBACK_MEMBER(dma_timer_callback);