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Added video banking, fixes Great Guns ranking screen

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This commit is contained in:
Angelo Salese 2013-11-03 22:43:42 +00:00
parent fe5ac3c0fd
commit e05327df99
3 changed files with 144 additions and 13 deletions
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140
src/emu/video/mb_vcu.c
View File

@ -19,7 +19,7 @@ Device for Mazer Blazer/Great Guns custom Video Controller Unit
const device_type MB_VCU = &device_creator<mb_vcu_device>;
static ADDRESS_MAP_START( mb_vcu_vram, AS_0, 8, mb_vcu_device )
AM_RANGE(0x00000,0x1ffff) AM_RAM // enough for a 256x256x4 x 2 pages of framebuffer (TODO: doubled for simplicity)
AM_RANGE(0x00000,0x7ffff) AM_RAM // enough for a 256x256x4 x 2 pages of framebuffer with 4 layers (TODO: doubled for simplicity)
ADDRESS_MAP_END
//-------------------------------------------------
@ -66,7 +66,7 @@ mb_vcu_device::mb_vcu_device(const machine_config &mconfig, const char *tag, dev
: device_t(mconfig, MB_VCU, "Mazer Blazer custom VCU", tag, owner, clock, "mb_vcu", __FILE__),
device_memory_interface(mconfig, *this),
device_video_interface(mconfig, *this),
m_space_config("videoram", ENDIANNESS_LITTLE, 8, 17, 0, NULL, *ADDRESS_MAP_NAME(mb_vcu_vram))
m_space_config("videoram", ENDIANNESS_LITTLE, 8, 19, 0, NULL, *ADDRESS_MAP_NAME(mb_vcu_vram))
{
}
@ -133,6 +133,11 @@ void mb_vcu_device::device_start()
void mb_vcu_device::device_reset()
{
m_status = 1;
for(int i=0;i<0x80000;i++)
{
write_byte(i,0x0f);
}
}
@ -191,6 +196,10 @@ READ8_MEMBER( mb_vcu_device::load_gfx )
int dstx,dsty;
UINT8 dot;
int bits = 0;
UINT8 pen;
UINT8 cur_layer;
cur_layer = 0;//(m_mode & 0x3) << 16;
switch(m_mode >> 2)
{
@ -207,8 +216,8 @@ READ8_MEMBER( mb_vcu_device::load_gfx )
dot = m_cpu->space(AS_PROGRAM).read_byte(((offset + (bits >> 3)) & 0x1fff) + 0x4000) >> (4-(bits & 7));
dot&= 0xf;
write_byte(dstx|dsty<<8, dot);
//if(dot != 0xf)
write_byte(dstx|dsty<<8|cur_layer<<16|m_vbank<<18, dot);
}
bits += 4;
}
@ -228,7 +237,9 @@ READ8_MEMBER( mb_vcu_device::load_gfx )
dot = m_cpu->space(AS_PROGRAM).read_byte(((offset + (bits >> 3)) & 0x1fff) + 0x4000) >> (7-(bits & 7));
dot&= 1;
write_byte(dstx|dsty<<8, dot ? (m_color1 >> 4) : (m_color1 & 0xf));
pen = dot ? (m_color1 >> 4) : (m_color1 & 0xf);
//if(pen != 0xf)
write_byte(dstx|dsty<<8|cur_layer|m_vbank<<18, pen);
}
bits++;
}
@ -250,18 +261,22 @@ READ8_MEMBER( mb_vcu_device::load_gfx )
switch(dot)
{
case 0:
write_byte(dstx|dsty<<8, m_color1 & 0xf);
pen = m_color1 & 0xf;
break;
case 1:
write_byte(dstx|dsty<<8, m_color1 >> 4);
pen = m_color1 >> 4;
break;
case 2:
write_byte(dstx|dsty<<8, m_color2 & 0xf);
pen = m_color2 & 0xf;
break;
case 3:
write_byte(dstx|dsty<<8, m_color2 >> 4);
pen = m_color2 >> 4;
break;
}
//if(pen != 0xf)
write_byte(dstx|dsty<<8|cur_layer|m_vbank<<18, pen);
}
bits+=2;
@ -279,7 +294,11 @@ READ8_MEMBER( mb_vcu_device::load_gfx )
READ8_MEMBER( mb_vcu_device::load_set_clr )
{
if(0)
int xi,yi;
int dstx,dsty;
// UINT8 dot;
int bits = 0;
if(m_mode == 0x13 || m_mode == 0x03)
{
printf("[0] %02x ",m_ram[m_param_offset_latch]);
printf("X: %04x ",m_xpos);
@ -289,11 +308,52 @@ READ8_MEMBER( mb_vcu_device::load_set_clr )
printf("M :%02x ",m_mode);
printf("XS:%02x ",m_pix_xsize);
printf("YS:%02x ",m_pix_ysize);
printf("VB:%02x ",m_vbank);
printf("\n");
}
switch(m_mode)
{
case 0x13:
case 0x03:
for (yi = 0; yi < m_pix_ysize; yi++)
{
for (xi = 0; xi < m_pix_xsize; xi++)
{
dstx = (m_xpos + xi);
dsty = (m_ypos + yi);
if(dstx < 256 && dsty < 256)
{
#if 0
dot = m_cpu->space(AS_PROGRAM).read_byte(((offset + (bits >> 3)) & 0x1fff) + 0x4000) >> (6-(bits & 7));
dot&= 3;
switch(dot)
{
case 0:
write_byte(dstx|dsty<<8, m_color1 & 0xf);
break;
case 1:
write_byte(dstx|dsty<<8, m_color1 >> 4);
break;
case 2:
write_byte(dstx|dsty<<8, m_color2 & 0xf);
break;
case 3:
write_byte(dstx|dsty<<8, m_color2 >> 4);
break;
}
#endif
//write_byte(dstx|dsty<<8, m_mode >> 4);
}
bits+=2;
}
}
break;
case 0x07:
switch(m_ypos)
{
@ -366,6 +426,7 @@ READ8_MEMBER( mb_vcu_device::status_r )
WRITE8_MEMBER( mb_vcu_device::vbank_w )
{
m_vbank = (data & 0x40) >> 6;
}
//-------------------------------------------------
@ -383,7 +444,7 @@ UINT32 mb_vcu_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
{
for(x=0;x<256;x++)
{
dot = read_byte((x >> 0)|(y<<8));
dot = read_byte((x >> 0)|(y<<8)|0<<16|(m_vbank ^ 1)<<18);
//if(dot != 0xf)
{
dot|= m_vregs[1] << 4;
@ -393,5 +454,62 @@ UINT32 mb_vcu_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
}
}
#if 0
for(y=0;y<256;y++)
{
for(x=0;x<256;x++)
{
dot = read_byte((x >> 0)|(y<<8)|3<<16);
if(dot != 0xf)
{
dot|= m_vregs[1] << 4;
bitmap.pix32(y,x) = machine().pens[dot];
}
}
}
for(y=0;y<256;y++)
{
for(x=0;x<256;x++)
{
dot = read_byte((x >> 0)|(y<<8)|0<<16);
if(dot != 0xf)
{
dot|= m_vregs[1] << 4;
bitmap.pix32(y,x) = machine().pens[dot];
}
}
}
for(y=0;y<256;y++)
{
for(x=0;x<256;x++)
{
dot = read_byte((x >> 0)|(y<<8)|1<<16);
if(dot != 0xf)
{
dot|= m_vregs[1] << 4;
bitmap.pix32(y,x) = machine().pens[dot];
}
}
}
#endif
return 0;
}
void mb_vcu_device::screen_eof(void)
{
for(int i=0;i<0x10000;i++)
{
//write_byte(i|0x00000|m_vbank<<18,0x0f);
//write_byte(i|0x10000|m_vbank<<18,0x0f);
//write_byte(i|0x30000|m_vbank<<18,0x0f);
}
}

2
src/emu/video/mb_vcu.h
View File

@ -55,6 +55,7 @@ public:
DECLARE_WRITE8_MEMBER( vbank_w );
UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void screen_eof(void);
protected:
// device-level overrides
@ -79,6 +80,7 @@ private:
UINT16 m_pix_xsize, m_pix_ysize;
UINT8 m_vregs[4];
UINT8 m_bk_color;
UINT8 m_vbank;
double m_weights_r[2];
double m_weights_g[3];

15
src/mame/drivers/mazerbla.c
View File

@ -223,6 +223,7 @@ public:
virtual void video_start();
virtual void palette_init();
UINT32 screen_update_mazerbla(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void screen_eof(screen_device &screen, bool state);
INTERRUPT_GEN_MEMBER(sound_interrupt);
TIMER_CALLBACK_MEMBER(deferred_ls670_0_w);
TIMER_CALLBACK_MEMBER(deferred_ls670_1_w);
@ -291,6 +292,15 @@ UINT32 mazerbla_state::screen_update_mazerbla(screen_device &screen, bitmap_rgb3
return 0;
}
void mazerbla_state::screen_eof(screen_device &screen, bool state)
{
if (state)
{
m_vcu->screen_eof();
}
}
/* reference */
#if 0
WRITE8_MEMBER(mazerbla_state::cfb_backgnd_color_w)
@ -1154,8 +1164,8 @@ static INPUT_PORTS_START( mazerbla )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("BUTTONS") /* Strobe 5: coin1&2, start1&2, fire */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
@ -1527,6 +1537,7 @@ static MACHINE_CONFIG_START( greatgun, mazerbla_state )
MCFG_SCREEN_SIZE(40*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 28*8-1)
MCFG_SCREEN_UPDATE_DRIVER(mazerbla_state, screen_update_mazerbla)
MCFG_SCREEN_VBLANK_DRIVER(mazerbla_state, screen_eof)
MCFG_PALETTE_LENGTH(256+1)