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Sprite buffering

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This commit is contained in:
Angelo Salese 2012-07-23 01:21:59 +00:00
parent ec96574c8f
commit c763e6dbca
1 changed files with 33 additions and 15 deletions
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48
src/mame/drivers/lastbank.c
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@ -60,6 +60,7 @@ public:
UINT8 *m_vram0; UINT8 *m_vram0;
UINT8 *m_vram1; UINT8 *m_vram1;
UINT8 *m_sprram; UINT8 *m_sprram;
UINT8 *m_sprram_buffer;
UINT8 *m_tvram; UINT8 *m_tvram;
UINT8 m_bg0_scroll[4]; UINT8 m_bg0_scroll[4];
UINT8 m_bg1_scroll[4]; UINT8 m_bg1_scroll[4];
@ -72,6 +73,7 @@ public:
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 global_flip); void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 global_flip);
void screen_eof(void);
protected: protected:
virtual void device_config_complete(); virtual void device_config_complete();
@ -315,15 +317,16 @@ static const gfx_layout char_layout =
void tc0091lvc_device::device_start() void tc0091lvc_device::device_start()
{ {
m_palette_ram = auto_alloc_array(machine(), UINT8, 0x200); m_palette_ram = auto_alloc_array_clear(machine(), UINT8, 0x200);
m_vregs = auto_alloc_array(machine(), UINT8, 0x100); m_vregs = auto_alloc_array_clear(machine(), UINT8, 0x100);
m_bitmap_ram = auto_alloc_array(machine(), UINT8, 0x20000); m_bitmap_ram = auto_alloc_array_clear(machine(), UINT8, 0x20000);
m_pcg1_ram = auto_alloc_array(machine(), UINT8, 0x4000); m_pcg1_ram = auto_alloc_array_clear(machine(), UINT8, 0x4000);
m_pcg2_ram = auto_alloc_array(machine(), UINT8, 0x4000); m_pcg2_ram = auto_alloc_array_clear(machine(), UINT8, 0x4000);
m_vram0 = auto_alloc_array(machine(), UINT8, 0x1000); m_vram0 = auto_alloc_array_clear(machine(), UINT8, 0x1000);
m_vram1 = auto_alloc_array(machine(), UINT8, 0x1000); m_vram1 = auto_alloc_array_clear(machine(), UINT8, 0x1000);
m_tvram = auto_alloc_array(machine(), UINT8, 0x1000); m_tvram = auto_alloc_array_clear(machine(), UINT8, 0x1000);
m_sprram = auto_alloc_array(machine(), UINT8, 0x400); m_sprram = auto_alloc_array_clear(machine(), UINT8, 0x400);
m_sprram_buffer = auto_alloc_array_clear(machine(), UINT8, 0x400);
tx_tilemap = tilemap_create_device(this, get_tx_tile_info,tilemap_scan_rows,8,8,64,32); tx_tilemap = tilemap_create_device(this, get_tx_tile_info,tilemap_scan_rows,8,8,64,32);
bg0_tilemap = tilemap_create_device(this, get_bg0_tile_info,tilemap_scan_rows,8,8,64,32); bg0_tilemap = tilemap_create_device(this, get_bg0_tile_info,tilemap_scan_rows,8,8,64,32);
@ -367,14 +370,14 @@ void tc0091lvc_device::draw_sprites( running_machine &machine, bitmap_ind16 &bit
{ {
int x,y,spr_offs,col,fx,fy; int x,y,spr_offs,col,fx,fy;
spr_offs = m_sprram[count+0]|(m_sprram[count+1]<<8); spr_offs = m_sprram_buffer[count+0]|(m_sprram_buffer[count+1]<<8);
x = m_sprram[count+4]|(m_sprram[count+5]<<8); x = m_sprram_buffer[count+4]|(m_sprram_buffer[count+5]<<8);
if (x >= 320) if (x >= 320)
x -= 512; x -= 512;
y = m_sprram[count+6]; y = m_sprram_buffer[count+6];
col = (m_sprram[count+2])&0x0f; col = (m_sprram_buffer[count+2])&0x0f;
fx = m_sprram[count+3] & 0x1; fx = m_sprram_buffer[count+3] & 0x1;
fy = m_sprram[count+3] & 0x2; fy = m_sprram_buffer[count+3] & 0x2;
if (global_flip) if (global_flip)
{ {
@ -452,6 +455,12 @@ UINT32 tc0091lvc_device::screen_update(screen_device &screen, bitmap_ind16 &bitm
return 0; return 0;
} }
void tc0091lvc_device::screen_eof(void)
{
memcpy(m_sprram_buffer,m_sprram,0x3e8);
}
/* End of TC0091LVC */ /* End of TC0091LVC */
#define MASTER_CLOCK XTAL_14_31818MHz #define MASTER_CLOCK XTAL_14_31818MHz
@ -470,6 +479,7 @@ public:
virtual void video_start(); virtual void video_start();
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void screen_eof(screen_device &screen, bool state);
UINT8 m_ram_bank[4]; UINT8 m_ram_bank[4];
UINT8 m_rom_bank; UINT8 m_rom_bank;
@ -517,6 +527,13 @@ UINT32 lastbank_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap
return 0; return 0;
} }
void lastbank_state::screen_eof(screen_device &screen, bool state)
{
if (state)
{
m_vdp->screen_eof();
}
}
READ8_MEMBER(lastbank_state::lastbank_rom_r) READ8_MEMBER(lastbank_state::lastbank_rom_r)
{ {
@ -903,6 +920,7 @@ static MACHINE_CONFIG_START( lastbank, lastbank_state )
MCFG_SCREEN_SIZE(64*8, 32*8) MCFG_SCREEN_SIZE(64*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 2*8, 30*8-1) MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 2*8, 30*8-1)
MCFG_SCREEN_UPDATE_DRIVER(lastbank_state, screen_update) MCFG_SCREEN_UPDATE_DRIVER(lastbank_state, screen_update)
MCFG_SCREEN_VBLANK_DRIVER(lastbank_state, screen_eof)
MCFG_DEVICE_ADD("tc0091lvc", TC0091LVC, 0) MCFG_DEVICE_ADD("tc0091lvc", TC0091LVC, 0)