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Implemented preliminary zooming

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This commit is contained in:
Angelo Salese 2010-01-17 17:46:14 +00:00
parent 51f56f0eb6
commit 4230eb97cd
1 changed files with 32 additions and 18 deletions
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50
src/mame/drivers/cybertnk.c
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@ -7,11 +7,10 @@ preliminary driver by Angelo Salese
Maybe it has some correlation with WEC Le Mans HW? (supposely that was originally done by Coreland too) Maybe it has some correlation with WEC Le Mans HW? (supposely that was originally done by Coreland too)
TODO: TODO:
- sprite ram (very likely that it can do zooming); - sprite emulation (very likely that it can do zooming);
- road emulation; - road emulation;
- tilemap video registers; - tilemap scrolling /-color banking;
- color banking for the tilemaps; - inputs doesn't work in-game?
- ROM "SS5" is missing? Or it's a sound chip that's labelled SS5?
- dual screen output. - dual screen output.
============================================================================================ ============================================================================================
@ -210,7 +209,6 @@ static VIDEO_UPDATE( cybertnk )
{ {
bitmap_fill(bitmap, cliprect, get_black_pen(screen->machine)); bitmap_fill(bitmap, cliprect, get_black_pen(screen->machine));
//popmessage("%04x",test);
{ {
int count,x,y; int count,x,y;
const gfx_element *gfx = screen->machine->gfx[2]; const gfx_element *gfx = screen->machine->gfx[2];
@ -257,33 +255,43 @@ static VIDEO_UPDATE( cybertnk )
if(1) if(1)
{ {
const UINT8 *blit_ram = memory_region(screen->machine,"spr_gfx"); const UINT8 *blit_ram = memory_region(screen->machine,"spr_gfx");
int offs,x,y,z,xsize,ysize,yi,xi,col_bank,fx; int offs,x,y,z,xsize,ysize,yi,xi,col_bank,fx,zoom;
UINT32 spr_offs; UINT32 spr_offs;
int xf,yf,xz,yz;
for(offs=0;offs<0x1000/2;offs+=8) for(offs=0;offs<0x1000/2;offs+=8)
{ {
z = (spr_ram[offs+(0x6/2)] & 0xffff); z = (spr_ram[offs+(0x6/2)] & 0xffff);
if(z == 0xffff || spr_ram[offs+(0x0/2)] == 0x0000) //TODO: check the correct bit if(z == 0xffff || spr_ram[offs+(0x0/2)] == 0x0000) //TODO: check the correct bit
continue; continue;
x = (spr_ram[offs+(0xa/2)] & 0x1ff); x = (spr_ram[offs+(0xa/2)] & 0x3ff);
y = (spr_ram[offs+(0x4/2)] & 0xff); y = (spr_ram[offs+(0x4/2)] & 0xff);
if(spr_ram[offs+(0x4/2)] & 0x100) if(spr_ram[offs+(0x4/2)] & 0x100)
y = 0x100 - y; y = 0x100 - y;
spr_offs = (((spr_ram[offs+(0x0/2)] & 7) << 16) | (spr_ram[offs+(0x2/2)])) << 2; spr_offs = (((spr_ram[offs+(0x0/2)] & 7) << 16) | (spr_ram[offs+(0x2/2)])) << 2;
xsize = ((spr_ram[offs+(0xc/2)] & 0x000f)+1) << 3; //obviously wrong! xsize = ((spr_ram[offs+(0xc/2)] & 0x000f)+1) << 3;
ysize = (spr_ram[offs+(0x8/2)] & 0x00ff)+1; ysize = (spr_ram[offs+(0x8/2)] & 0x00ff)+1;
fx = (spr_ram[offs+(0xa/2)] & 0x8000) >> 15; fx = (spr_ram[offs+(0xa/2)] & 0x8000) >> 15;
zoom = (spr_ram[offs+(0xc/2)] & 0xff00) >> 8;
col_bank = (spr_ram[offs+(0x0/2)] & 0xff00) >> 8; col_bank = (spr_ram[offs+(0x0/2)] & 0xff00) >> 8;
xf = 0;
yf = 0;
xz = 0;
yz = 0;
if(zoom > 0x80)
continue;
for(yi = 0;yi < ysize;yi++) for(yi = 0;yi < ysize;yi++)
{ {
xf = xz = 0;
for(xi=0;xi < xsize;xi+=8) for(xi=0;xi < xsize;xi+=8)
{ {
UINT32 color; UINT32 color;
UINT16 dot; UINT16 dot;
int shift_pen; int shift_pen, x_dec; //helpers
int x_dec; //helpers
color = ((blit_ram[spr_offs+0] & 0xff) << 24); color = ((blit_ram[spr_offs+0] & 0xff) << 24);
color|= ((blit_ram[spr_offs+1] & 0xff) << 16); color|= ((blit_ram[spr_offs+1] & 0xff) << 16);
@ -301,17 +309,19 @@ static VIDEO_UPDATE( cybertnk )
dot|= col_bank<<4; dot|= col_bank<<4;
if(fx) if(fx)
{ {
if(((x+xsize-(x_dec+xi)) < video_screen_get_visible_area(screen)->max_x) && ((y+yi) < video_screen_get_visible_area(screen)->max_y)) if(((x+xsize-(xz)) < video_screen_get_visible_area(screen)->max_x) && ((y+yi) < video_screen_get_visible_area(screen)->max_y))
*BITMAP_ADDR16(bitmap, y+yi, x+xsize-(x_dec+xi)) = screen->machine->pens[dot]; *BITMAP_ADDR16(bitmap, y+yz, x+xsize-(xz)) = screen->machine->pens[dot];
} }
else else
{ {
if(((x+x_dec+xi) < video_screen_get_visible_area(screen)->max_x) && ((y+yi) < video_screen_get_visible_area(screen)->max_y)) if(((x+xz) < video_screen_get_visible_area(screen)->max_x) && ((y+yi) < video_screen_get_visible_area(screen)->max_y))
*BITMAP_ADDR16(bitmap, y+yi, x+x_dec+xi) = screen->machine->pens[dot]; *BITMAP_ADDR16(bitmap, y+yz, x+xz) = screen->machine->pens[dot];
} }
} }
shift_pen -= 8; shift_pen -= 8;
x_dec++; x_dec++;
xf+=zoom;
if(xf >= 0x80) { xz++; xf-=0x80; }
} }
shift_pen = 24; shift_pen = 24;
@ -325,21 +335,25 @@ static VIDEO_UPDATE( cybertnk )
dot|= col_bank<<4; dot|= col_bank<<4;
if(fx) if(fx)
{ {
if(((x+xsize-(x_dec+xi)) < video_screen_get_visible_area(screen)->max_x) && ((y+yi) < video_screen_get_visible_area(screen)->max_y)) if(((x+xsize-(xz)) < video_screen_get_visible_area(screen)->max_x) && ((y+yi) < video_screen_get_visible_area(screen)->max_y))
*BITMAP_ADDR16(bitmap, y+yi, x+xsize-(x_dec+xi)) = screen->machine->pens[dot]; *BITMAP_ADDR16(bitmap, y+yz, x+xsize-(xz)) = screen->machine->pens[dot];
} }
else else
{ {
if(((x+x_dec+xi) < video_screen_get_visible_area(screen)->max_x) && ((y+yi) < video_screen_get_visible_area(screen)->max_y)) if(((x+x_dec+xi) < video_screen_get_visible_area(screen)->max_x) && ((y+yi) < video_screen_get_visible_area(screen)->max_y))
*BITMAP_ADDR16(bitmap, y+yi, x+x_dec+xi) = screen->machine->pens[dot]; *BITMAP_ADDR16(bitmap, y+yz, x+xz) = screen->machine->pens[dot];
} }
} }
shift_pen -= 8; shift_pen -= 8;
x_dec++; x_dec++;
xf+=zoom;
if(xf >= 0x80) { xz++; xf-=0x80; }
} }
spr_offs+=4; spr_offs+=4;
} }
yf+=zoom;
if(yf >= 0x80) { yz++; yf-=0x80; }
} }
} }
} }
@ -608,7 +622,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( slave_mem, ADDRESS_SPACE_PROGRAM, 16 ) static ADDRESS_MAP_START( slave_mem, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x01ffff) AM_ROM AM_RANGE(0x000000, 0x01ffff) AM_ROM
AM_RANGE(0x080000, 0x083fff) AM_RAM /*Work RAM*/ AM_RANGE(0x080000, 0x083fff) AM_RAM /*Work RAM*/
AM_RANGE(0x0c0000, 0x0c3fff) AM_RAM AM_RANGE(0x0c0000, 0x0c0fff) AM_RAM
AM_RANGE(0x100000, 0x100fff) AM_RAM AM_SHARE("sharedram") AM_RANGE(0x100000, 0x100fff) AM_RAM AM_SHARE("sharedram")
AM_RANGE(0x140000, 0x140003) AM_NOP /*Watchdog? Written during loops and interrupts*/ AM_RANGE(0x140000, 0x140003) AM_NOP /*Watchdog? Written during loops and interrupts*/
ADDRESS_MAP_END ADDRESS_MAP_END