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mlanding: fixed foreground framebuffer graphics [Phil Bennett]

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This commit is contained in:
Angelo Salese 2009-06-25 19:03:32 +00:00
parent 39ee2dcb7c
commit 3f75c561de
1 changed files with 240 additions and 136 deletions
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376
src/mame/drivers/mlanding.c
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@ -1,14 +1,23 @@
/* Taito Midnight Landing
Dual 68k + 2xZ80
no other hardware info..but it doesn't seem related to taitoair.c at all
/***********************************************************************************************************
TODO:
- Fix "sprite" emulation, it's probably a blitter/buffer with commands etc.;
- Comms between the four CPUs;
- understand how to display the "dots", my guess is that they are at 0x200000-0x203fff of the sub cpu (this might need a side-by-side);
- Inputs, particularly needed for a game like this one;
- Needs a custom artwork for the cloche status;
*/
Midnight Landing (c) 1987 Taito Corporation
driver by Tomasz Slanina, Phil Bennett & Angelo Salese, based on early work by David Haywood
Dual 68k + 2xZ80
no other hardware info..but it doesn't seem related to taitoair.c at all
TODO:
- Fix "sprite" emulation, it's probably a blitter/buffer with commands etc.;
- Comms between the four CPUs;
- understand how to display the "dots", my guess is that they are at 0x200000-0x203fff of the sub cpu
(this might need a side-by-side);
- Gameplay looks stiff;
- Needs a custom artwork for the cloche status;
- Sound is nowhere near to be perfect;
- clean-ups!
************************************************************************************************************/
#include "driver.h"
#include "cpu/z80/z80.h"
@ -20,31 +29,161 @@
static UINT16 * ml_tileram;
static UINT16 * ml_spriteram;
static UINT16 *g_ram;
static UINT16 * ml_dotram;
static bitmap_t *ml_bitmap[8];
#define ML_CHARS 0x2000
static UINT16 *dma_ram;
static int status_bit;
static int adpcm_pos;
static int adpcm_data;
static UINT8 pal_fg_bank;
static int dma_active;
static const gfx_layout tiles8x8_layout =
static VIDEO_START(mlanding)
{
8,8,
RGN_FRAC(1,1),
4,
{ 16, 24, 0, 8 },
{ 7, 6, 5, 4, 3, 2, 1, 0 },
{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
32*8
};
}
// 000: ???????
// 256: Cockpit
// 512: control centre screen
// 768: plane landing sequence
static VIDEO_UPDATE(mlanding)
{
int x, y;
for (y = cliprect->min_y; y <= cliprect->max_y; ++y)
{
UINT16 *src = &g_ram[y * 512/2 + cliprect->min_x];
UINT16 *dst = BITMAP_ADDR16(bitmap, y, cliprect->min_x);
for (x = cliprect->min_x; x <= cliprect->max_x; x += 2)
{
UINT16 srcpix = *src++;
*dst++ = screen->machine->pens[256 + (srcpix & 0xff)+(pal_fg_bank << 8)];
*dst++ = screen->machine->pens[256 + (srcpix >> 8)+(pal_fg_bank << 8)];
}
}
return 0;
}
/* Return the number of pixels processed for timing purposes? */
int start_dma(void)
{
/* Traverse the DMA RAM list */
int offs;
for (offs = 0; offs < 0x2000; offs +=4)
{
UINT16 code;
UINT16 x;
UINT16 y;
UINT16 colour;
UINT16 dx;
UINT16 dy;
int j, k;
UINT16 attr = dma_ram[offs];
if (attr == 0)
continue;
x = dma_ram[offs + 1];
y = dma_ram[offs + 2];
colour = dma_ram[offs + 3];//|(pal_fg_bank & 1 ? 0x20 : 0x10);
dx = x >> 11;
dy = y >> 11;
dx &= 0x1f;
dy &= 0x1f;
dx++;
dy++;
x &= 0x1ff;
y &= 0x1ff;
#if 0
printf("OFFS: %.8x\n", offs*2);
printf("CODE: %.4x %s\n", attr, ~attr & 0x8000 ? "TRANS" : " ");
printf("X : %.3d\n", x);
printf("Y : %.3d\n", y);
printf("DX : %.3d (%d)\n", dx, dx*8);
printf("DY : %.3d (%d)\n", dy, dx*8);
printf("COL : %.4x\n", colour);
#endif
code = attr & 0x1fff;
if (code)
{
for(j = 0; j < dx; j++)
{
for(k = 0; k < dy; k++)
{
int x1, y1;
// Draw the 8x8 chunk
for (y1 = 0; y1 < 8; ++y1)
{
UINT16 *src = &ml_tileram[(code * 2 * 8) + y1*2];
UINT16 *dst = &g_ram[(y + k*8+y1)*512/2 + (j*8+x)/2];
UINT8 p2 = *src & 0xff;
UINT8 p1 = *src++ >> 8;
UINT8 p4 = *src;
UINT8 p3 = *src++ >> 8;
// DRAW 8 pixels
for (x1 = 0; x1 < 8; x1++)
{
UINT16 pix1, pix2;
pix1 = (BIT(p4, x1) << 3) | (BIT(p3, x1) << 2) | (BIT(p2, x1) << 1) | BIT(p1, x1);
x1++;
pix2 = (BIT(p4, x1) << 3) | (BIT(p3, x1) << 2) | (BIT(p2, x1) << 1) | BIT(p1, x1);
if (~attr & 0x8000)
{
if (pix1)
*dst = (*dst & 0xff00) | ((colour << 4) | pix1);
if (pix2)
*dst = (*dst & 0x00ff) | (((colour << 4) | pix2) << 8);
}
else
{
*dst = (((colour << 4) | pix2) << 8) | ((colour << 4) | pix1);
}
dst++;
}
}
code++;
}
}
}
else
{
int y1;
UINT16 clear_colour = (colour << 12) | (colour << 4);
for(y1 = 0; y1 < dy*8; y1++)
{
int x1;
UINT16 *dst = &g_ram[((y + y1) * 512/2) + x/2];
for(x1 = 0; x1 < dx*8; x1+=2)
{
*dst++ = clear_colour;
}
}
}
}
return 1;
}
static WRITE16_HANDLER(ml_tileram_w)
{
COMBINE_DATA(&ml_tileram[offset]);
gfx_element_mark_dirty(space->machine->gfx[0], offset>>4);
}
static READ16_HANDLER(ml_tileram_r)
@ -53,7 +192,6 @@ static READ16_HANDLER(ml_tileram_r)
}
static READ16_HANDLER( io1_r ) //240006
{
/*
@ -65,9 +203,9 @@ static READ16_HANDLER( io1_r ) //240006
x - video status
other bits = language(german, japan, english), video test
*/
// multiplexed? or just overriden?
int retval= (status_bit|1|0x07fff);
status_bit=0x8000;
int retval = (dma_active << 15) | (input_port_read(space->machine, "DSW") & 0x7ffe) | 1;
return retval;
}
@ -121,9 +259,24 @@ static WRITE8_DEVICE_HANDLER( ml_msm5205_stop_w )
adpcm_pos &= 0xff00;
}
static TIMER_CALLBACK( dma_complete )
{
dma_active = 0;
}
/* TODO: this uses many bits */
static WRITE16_HANDLER( ml_sub_reset_w )
{
int pixels;
// Return the number of pixels drawn?
pixels = start_dma();
if (pixels)
{
dma_active = 1;
timer_set(space->machine, ATTOTIME_IN_MSEC(20), NULL, 0, dma_complete);
}
cputag_set_input_line(space->machine, "sub", INPUT_LINE_RESET, CLEAR_LINE);
}
@ -236,18 +389,22 @@ static READ16_HANDLER( ml_analog3_msb_r )
return ((input_port_read(space->machine, "STICKX") & 0xf00)>>8) | res;
}
static WRITE16_HANDLER( ml_nmi_to_sound_w )
{
cputag_set_input_line(space->machine, "audiocpu", INPUT_LINE_RESET, CLEAR_LINE);
}
static ADDRESS_MAP_START( mlanding_mem, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x05ffff) AM_ROM
AM_RANGE(0x080000, 0x08ffff) AM_RAM
AM_RANGE(0x100000, 0x17ffff) AM_RAM
AM_RANGE(0x100000, 0x17ffff) AM_RAM AM_BASE(&g_ram)// 512kB G RAM - enough here for double buffered 512x400x8 frame
AM_RANGE(0x180000, 0x1bffff) AM_READWRITE(ml_tileram_r, ml_tileram_w) AM_BASE(&ml_tileram)
AM_RANGE(0x1c0000, 0x1c1fff) AM_RAM AM_BASE(&ml_spriteram)
AM_RANGE(0x1c2000, 0x1c3fff) AM_RAM
AM_RANGE(0x1c0000, 0x1c3fff) AM_RAM AM_BASE(&dma_ram)
AM_RANGE(0x1c4000, 0x1cffff) AM_RAM AM_SHARE(1)
AM_RANGE(0x1d0000, 0x1d0001) AM_WRITE(ml_sub_reset_w)
AM_RANGE(0x1d0002, 0x1d0003) AM_WRITENOP //sound reset ??
AM_RANGE(0x1d0002, 0x1d0003) AM_WRITE(ml_nmi_to_sound_w) //sound reset ??
AM_RANGE(0x2d0000, 0x2d0003) AM_WRITE(ml_to_sound_w)
AM_RANGE(0x2d0000, 0x2d0001) AM_READNOP
@ -277,7 +434,7 @@ ADDRESS_MAP_END
static READ16_HANDLER( ml_sub_kludge_r )
{
/* bit 15 == status bit? */
return 0;
return dma_active<<15;
}
static ADDRESS_MAP_START( mlanding_sub_mem, ADDRESS_SPACE_PROGRAM, 16 )
@ -316,106 +473,57 @@ static ADDRESS_MAP_START( mlanding_z80_sub_mem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x9800, 0x9803) AM_RAM
ADDRESS_MAP_END
static VIDEO_START(mlanding)
{
int i;
gfx_element_set_source(machine->gfx[0], (UINT8 *) ml_tileram);
for (i=0;i<8;i++)
ml_bitmap[i] = video_screen_auto_bitmap_alloc(machine->primary_screen);
}
static VIDEO_UPDATE(mlanding)
{
bitmap_fill(bitmap, cliprect, get_black_pen(screen->machine));
// popmessage("%02x",test);
{
int i,dx,dy,j,k,num;
for(i=0;i<0x1000;i+=4)
{
int x,y,code,color;
code=ml_spriteram[i] & 0x1fff;
x=ml_spriteram[i+1];
y=ml_spriteram[i+2];
color=(ml_spriteram[i+3] & 0xf)|(pal_fg_bank ? 0x20 : 0x10); //TODO: this will be simplified in the end...
color&=0x3f;
dx=x>>11;
dy=y>>11;
dx&=0x1f;
dy&=0x1f;
dx++;
dy++;
x&=0x1ff;
y&=0x1ff;
num=code>>14;
code&=0x1fff;
for(j=0;j<dx;j++)
{
for(k=0;k<dy;k++)
{
//test
if(code)
{
drawgfx_opaque(ml_bitmap[num],cliprect,screen->machine->gfx[0],
code++,
color,
0,0,
x+j*8,y+k*8);
}
else
{
int xx,yy;
for(yy=0;yy<8;yy++)
for(xx=0;xx<8;xx++)
{
*BITMAP_ADDR16(ml_bitmap[num], y+yy+k*8, x+xx+j*8) = 0; //test only .. ugly
}
}
}
}
}
}
{
int i;
for(i=0;i<7;i++)
{
copybitmap_trans(bitmap,ml_bitmap[i], 0, 0, 0, 0, cliprect, 0);
}
}
status_bit=0; //FIXME: emulation variable in VIDEO_UPDATE()
{
/* int i;
for(i=0;i<0x8000;i++)
{
*BITMAP_ADDR16(bitmap, 156+( ml_unk[i]>>8), ml_unk[i]&0xff) = 0x207;
}
*/
}
/*
0x810 - Y value
0x812 - Z value
0x814 - End marker?
*/
popmessage("%04x %04x %04x %04x|%04x %04x %04x %04x|%04x %04x %04x",ml_dotram[0x800/2],ml_dotram[0x802/2],ml_dotram[0x804/2],ml_dotram[0x806/2],
ml_dotram[0x808/2],ml_dotram[0x80a/2],ml_dotram[0x80c/2],ml_dotram[0x80e/2],
ml_dotram[0x810/2],ml_dotram[0x812/2],ml_dotram[0x814/2]);
// popmessage("%04x %04x %04x",input_port_read(screen->machine, "STICKX"),input_port_read(screen->machine, "STICKY"),input_port_read(screen->machine, "STICKZ"));
return 0;
}
static INPUT_PORTS_START( mlanding )
PORT_START("DSW")
PORT_DIPNAME( 0x01, 0x01, "$2000-0")
PORT_DIPSETTING( 0x01, "H" )
PORT_DIPSETTING( 0x00, "L" )
PORT_DIPNAME( 0x02, 0x02, "$2000-1")
PORT_DIPSETTING( 0x02, "H" )
PORT_DIPSETTING( 0x00, "L" )
PORT_DIPNAME( 0x04, 0x04, "Test Mode")
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x08, "$2000-3")
PORT_DIPSETTING( 0x08, "H" )
PORT_DIPSETTING( 0x00, "L" )
PORT_DIPNAME( 0x10, 0x10, "$2000-4")
PORT_DIPSETTING( 0x10, "H" )
PORT_DIPSETTING( 0x00, "L" )
PORT_DIPNAME( 0x20, 0x20, "$2000-5")
PORT_DIPSETTING( 0x20, "H" )
PORT_DIPSETTING( 0x00, "L" )
PORT_DIPNAME( 0x40, 0x40, "$2000-6")
PORT_DIPSETTING( 0x40, "H" )
PORT_DIPSETTING( 0x00, "L" )
PORT_DIPNAME( 0x80, 0x80, "$2000-7")
PORT_DIPSETTING( 0x80, "H" )
PORT_DIPSETTING( 0x00, "L" )
PORT_DIPNAME( 0x0100, 0x0100, "$2000-0")
PORT_DIPSETTING( 0x0100, "H" )
PORT_DIPSETTING( 0x0000, "L" )
PORT_DIPNAME( 0x0200, 0x0200, "$2000-1")
PORT_DIPSETTING( 0x0200, "H" )
PORT_DIPSETTING( 0x0000, "L" )
PORT_DIPNAME( 0x0400, 0x0400, DEF_STR( Allow_Continue ) )
PORT_DIPSETTING( 0x0400, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
PORT_DIPNAME( 0x0800, 0x0800, "$2000-3")
PORT_DIPSETTING( 0x0800, "H" )
PORT_DIPSETTING( 0x0000, "L" )
PORT_DIPNAME( 0x1000, 0x1000, "Test Mode 2")
PORT_DIPSETTING( 0x1000, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
PORT_DIPNAME( 0x2000, 0x2000, "$2000-5")
PORT_DIPSETTING( 0x2000, "H" )
PORT_DIPSETTING( 0x0000, "L" )
PORT_DIPNAME( 0x4000, 0x4000, "$2000-6")
PORT_DIPSETTING( 0x4000, "H" )
PORT_DIPSETTING( 0x0000, "L" )
PORT_DIPNAME( 0x8000, 0x8000, "$2000-7")
PORT_DIPSETTING( 0x8000, "H" )
PORT_DIPSETTING( 0x0000, "L" )
PORT_START("IN0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_TILT )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SERVICE1 )
@ -504,10 +612,6 @@ static void irq_handler(const device_config *device, int irq)
cputag_set_input_line(device->machine, "audiocpu", 0, irq ? ASSERT_LINE : CLEAR_LINE);
}
static GFXDECODE_START( mlanding )
GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0, 16*16 )
GFXDECODE_END
static const msm5205_interface msm5205_config =
{
ml_msm5205_vck, /* VCK function */
@ -523,6 +627,7 @@ static const ym2151_interface ym2151_config =
static MACHINE_RESET( mlanding )
{
cputag_set_input_line(machine, "sub", INPUT_LINE_RESET, ASSERT_LINE);
cputag_set_input_line(machine, "audiocpu", INPUT_LINE_RESET, ASSERT_LINE);
status_bit = 0;
adpcm_pos = 0;
adpcm_data = -1;
@ -556,7 +661,6 @@ static MACHINE_DRIVER_START( mlanding )
MDRV_SCREEN_SIZE(512, 512)
MDRV_SCREEN_VISIBLE_AREA(0, 511, 14*8, 511)
MDRV_GFXDECODE(mlanding)
MDRV_PALETTE_LENGTH(512*16)
MDRV_VIDEO_START(mlanding)