Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-06-02 02:49:44 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

voodoo: Change multi base address selection to fix funkball textures.

Browse Source
This commit is contained in:
Ted Green 2017-04-20 12:03:50 -06:00
parent bc2f1ec4ed
commit c92e085bec
1 changed files with 10 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/devices/video/voodoo.cpp
View File

@ -1308,7 +1308,8 @@ static void recompute_texture_params(tmu_state *t)
/* Several Voodoo 2 games leave the upper bits of TLOD == 0xff, meaning we think */
/* they want multitex mode when they really don't -- disable for now */
// Enable for Voodoo 3 or Viper breaks - VL.
if (TEXLOD_TMULTIBASEADDR(t->reg[tLOD].u))
// Add check for upper nibble not equal to zero to fix funkball -- TG
if (TEXLOD_TMULTIBASEADDR(t->reg[tLOD].u) && (t->reg[tLOD].u >> 28) == 0)
{
base = (t->reg[texBaseAddr_1].u & t->texaddr_mask) << t->texaddr_shift;
t->lodoffset[1] = base & t->mask;
@ -3395,11 +3396,14 @@ int32_t voodoo_device::texture_w(voodoo_device *vd, offs_t offset, uint32_t data
tt = (offset >> 7) & 0xff;
/* old code has a bit about how this is broken in gauntleg unless we always look at TMU0 */
if (TEXMODE_SEQ_8_DOWNLD(vd->tmu[0].reg/*t->reg*/[textureMode].u))
ts = (offset << 2) & 0xfc;
else
ts = (offset << 1) & 0xfc;
if (TEXMODE_SEQ_8_DOWNLD(vd->tmu[0].reg/*t->reg*/[textureMode].u)) {
//ts = (offset << 2) & 0xfc;
ts = (offset & 0x3f) << 2;
}
else {
//ts = (offset << 1) & 0xfc;
ts = (offset & 0x7f) << 1;
}
/* validate parameters */
if (lod > 8)
return 0;