Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

S3 changes :

Browse source 
Altered endianness of multi-word image transfers - fixes icons on Windows NT
Current position registers now updated at the end of commands - fixes some drawing issues on Windows NT
Hack to reset indicator of which half of colour registers will be accessed - fixed intermittent 32-bit colour issues
This commit is contained in:
TomW 2014-05-03 13:39:03 +01:00
commit 8c8d70c3cf
1 changed files with 30 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

44
src/vid_s3.c
View file

@ -506,6 +506,7 @@ void s3_accel_out(uint16_t port, uint8_t val, void *p)
s3->accel.cmd = (s3->accel.cmd & 0xff) | (val << 8);
s3_accel_start(-1, 0, 0xffffffff, 0, s3);
s3->accel.pix_trans_count = 0;
s3->accel.multifunc[0xe] &= ~0x10; /*hack*/
break;
case 0x9ee8:
@ -1061,15 +1062,15 @@ void s3_accel_write_l(uint32_t addr, uint32_t val, void *p)
s3_accel_start(4, 1, 0xffffffff, val, s3);
else if ((s3->accel.cmd & 0x600) == 0x200)
{
s3_accel_start(2, 1, 0xffffffff, val >> 16, s3);
s3_accel_start(2, 1, 0xffffffff, val, s3);
s3_accel_start(2, 1, 0xffffffff, val >> 16, s3);
}
else if (!(s3->accel.cmd & 0x600))
{
s3_accel_start(1, 1, 0xffffffff, val >> 24, s3);
s3_accel_start(1, 1, 0xffffffff, val >> 16, s3);
s3_accel_start(1, 1, 0xffffffff, val >> 8, s3);
s3_accel_start(1, 1, 0xffffffff, val, s3);
s3_accel_start(1, 1, 0xffffffff, val >> 8, s3);
s3_accel_start(1, 1, 0xffffffff, val >> 16, s3);
s3_accel_start(1, 1, 0xffffffff, val >> 24, s3);
}
}
}
@ -1211,7 +1212,7 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
compare_mode < 2)
{
READ((s3->accel.cy * s3->width) + s3->accel.cx, dest_dat);
MIX
WRITE((s3->accel.cy * s3->width) + s3->accel.cx);
@ -1221,21 +1222,25 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
mix_dat <<= 1;
mix_dat |= 1;
if (s3->bpp == 0) cpu_dat >>= 8;
else cpu_dat >>= 16;
else cpu_dat >>= 16;
if (!s3->accel.sy)
break;
switch (s3->accel.cmd & 0xe0)
{
case 0x00: s3->accel.cx++; break;
case 0x00: s3->accel.cx++; break;
case 0x20: s3->accel.cx++; s3->accel.cy--; break;
case 0x40: s3->accel.cy--; break;
case 0x40: s3->accel.cy--; break;
case 0x60: s3->accel.cx--; s3->accel.cy--; break;
case 0x80: s3->accel.cx--; break;
case 0x80: s3->accel.cx--; break;
case 0xa0: s3->accel.cx--; s3->accel.cy++; break;
case 0xc0: s3->accel.cy++; break;
case 0xc0: s3->accel.cy++; break;
case 0xe0: s3->accel.cx++; s3->accel.cy++; break;
}
s3->accel.sy--;
}
s3->accel.cur_x = s3->accel.cx;
s3->accel.cur_y = s3->accel.cy;
}
else /*Bresenham*/
{
@ -1263,7 +1268,7 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
MIX
// pclog("%02X\n", dest_dat);
WRITE((s3->accel.cy * s3->width) + s3->accel.cx);
}
}
@ -1275,6 +1280,9 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
// pclog("%i, %i - %i %i %i %i\n", s3->accel.cx, s3->accel.cy, s3->accel.err_term, s3->accel.maj_axis_pcnt, s3->accel.desty_axstp, s3->accel.destx_distp);
if (!s3->accel.sy)
break;
if (s3->accel.err_term >= s3->accel.maj_axis_pcnt)
{
s3->accel.err_term += s3->accel.destx_distp;
@ -1308,6 +1316,8 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
}
s3->accel.sy--;
}
s3->accel.cur_x = s3->accel.cx;
s3->accel.cur_y = s3->accel.cy;
}
break;
@ -1386,6 +1396,8 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
if (cpu_input/* && (s3->accel.multifunc[0xa] & 0xc0) == 0x80*/) return;
if (s3->accel.sy < 0)
{
s3->accel.cur_x = s3->accel.cx;
s3->accel.cur_y = s3->accel.cy;
return;
}
}
@ -1456,7 +1468,11 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
s3->accel.sy--;
if (s3->accel.sy < 0)
return;
{
s3->accel.cur_x = s3->accel.cx;
s3->accel.cur_y = s3->accel.cy;
return;
}
}
}
}
@ -1545,6 +1561,8 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
if (cpu_input/* && (s3->accel.multifunc[0xa] & 0xc0) == 0x80*/) return;
if (s3->accel.sy < 0)
{
s3->accel.cur_x = s3->accel.cx;
s3->accel.cur_y = s3->accel.cy;
return;
}
}
@ -1673,9 +1691,7 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
if (cpu_input/* && (s3->accel.multifunc[0xa] & 0xc0) == 0x80*/) return;
if (s3->accel.sy < 0)
{
return;
}
}
}
break;