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improve graphics in gostop (nw)

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This commit is contained in:
David Haywood 2014-10-10 23:27:04 +00:00
parent 774b2021ab
commit f2d8c05791
1 changed files with 223 additions and 196 deletions
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45
src/mame/machine/st0016.c
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@ -341,13 +341,13 @@ void st0016_cpu_device::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clip
76543210 (bit)
0 llllllll
1 ---1SSSl
1 ---gSSSl
2 oooooooo
3 fooooooo
4 xxxxxxxx
5 ------xx
5 ----XXxx
6 yyyyyyyy
7 ------yy
7 ----XYyy
1 - always(?) set
S - scroll index ? (ports $40-$60, X(word),Y(word) )
@ -356,6 +356,11 @@ void st0016_cpu_device::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clip
f - end of list flag
x,y - sprite coords
(complete guess)
g - use tile sizes specified in list (global / fixed ones if not set?) (gostop)
X = global X size?
Y = global Y size?
sublist format (8 bytes/entry):
76543210
@ -364,9 +369,9 @@ void st0016_cpu_device::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clip
2 --kkkkkk
3 QW------
4 xxxxxxxx
5 -B---XXx
5 -B--XX-x
6 yyyyyyyy
7 -----YYy
7 ----YY-y
c - character code
k - palette
@ -386,6 +391,10 @@ void st0016_cpu_device::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clip
x = st0016_spriteram[i + 4] + ((st0016_spriteram[i + 5] & 3) << 8);
y = st0016_spriteram[i + 6] + ((st0016_spriteram[i + 7] & 3) << 8);
int use_sizes = (st0016_spriteram[i + 1] & 0x10);
int globalx = (st0016_spriteram[i + 5] & 0x0c)>>2;
int globaly = (st0016_spriteram[i + 7] & 0x0c)>>2;
scrollx = (st0016_vregs[(((st0016_spriteram[i + 1] & 0x0f) >> 1) << 2) + 0x40] + 256 * st0016_vregs[(((st0016_spriteram[i + 1] & 0x0f) >> 1) << 2) + 1 + 0x40]) & 0x3ff;
scrolly = (st0016_vregs[(((st0016_spriteram[i + 1] & 0x0f) >> 1) << 2) + 2 + 0x40] + 256 * st0016_vregs[(((st0016_spriteram[i + 1] & 0x0f) >> 1) << 2) + 3 + 0x40]) & 0x3ff;
@ -447,8 +456,19 @@ void st0016_cpu_device::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clip
sx += x;
sy += y;
color = st0016_spriteram[offset + 2] & 0x3f;
if (use_sizes)
{
lx = (st0016_spriteram[offset + 5] >> 2) & 3;
ly = (st0016_spriteram[offset + 7] >> 2) & 3;
}
else
{
lx = globalx;
ly = globaly;
}
/*
if(plx |ply) //parent
{
@ -486,7 +506,8 @@ void st0016_cpu_device::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clip
{
UINT16 drawypos;
if (!flipy) {drawypos = ypos+yloop;} else {drawypos = (ypos+8-1)-yloop;}
if (!flipy) { drawypos = ypos + yloop; }
else { drawypos = (ypos + 8 - 1) - yloop; }
destline = &bitmap.pix16(drawypos);
for (xloop = 0; xloop<8; xloop++)
@ -495,7 +516,8 @@ void st0016_cpu_device::draw_sprites(bitmap_ind16 &bitmap, const rectangle &clip
int pixdata;
pixdata = srcgfx[gfxoffs];
if (!flipx) { drawxpos = xpos+xloop; } else { drawxpos = (xpos+8-1)-xloop; }
if (!flipx) { drawxpos = xpos + xloop; }
else { drawxpos = (xpos + 8 - 1) - xloop; }
if (drawxpos > cliprect.max_x)
drawxpos -= 512; // wrap around
@ -593,7 +615,9 @@ void st0016_cpu_device::draw_bgmap(bitmap_ind16 &bitmap,const rectangle &cliprec
{
int x, y, code, color, flipx, flipy;
int i = st0016_vregs[j + 1] * 0x1000;
for (x = 0; x < 32 * 2; x++)
{
for (y = 0; y < 8 * 4; y++)
{
code = st0016_spriteram[i] + 256 * st0016_spriteram[i + 1];
@ -626,7 +650,8 @@ void st0016_cpu_device::draw_bgmap(bitmap_ind16 &bitmap,const rectangle &cliprec
{
UINT16 drawypos;
if (!flipy) {drawypos = ypos+yloop;} else {drawypos = (ypos+8-1)-yloop;}
if (!flipy) { drawypos = ypos + yloop; }
else { drawypos = (ypos + 8 - 1) - yloop; }
destline = &bitmap.pix16(drawypos);
for (xloop = 0; xloop<8; xloop++)
@ -635,7 +660,8 @@ void st0016_cpu_device::draw_bgmap(bitmap_ind16 &bitmap,const rectangle &cliprec
int pixdata;
pixdata = srcgfx[gfxoffs];
if (!flipx) { drawxpos = xpos+xloop; } else { drawxpos = (xpos+8-1)-xloop; }
if (!flipx) { drawxpos = xpos + xloop; }
else { drawxpos = (xpos + 8 - 1) - xloop; }
if (drawxpos > cliprect.max_x)
drawxpos -= 512; // wrap around
@ -674,6 +700,7 @@ void st0016_cpu_device::draw_bgmap(bitmap_ind16 &bitmap,const rectangle &cliprec
}
}
}
}
void st0016_cpu_device::st0016_draw_screen(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)