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Voodoo non-recompiler now uses correct W coordinate for TMU #1

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This commit is contained in:
SarahW 2016-11-20 17:14:48 +00:00
commit de1d72b92b
1 changed files with 8 additions and 6 deletions
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14
src/vid_voodoo.c
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@ -1843,18 +1843,20 @@ static inline void voodoo_tmu_fetch(voodoo_t *voodoo, voodoo_params_t *params, v
if (params->textureMode[tmu] & 1) if (params->textureMode[tmu] & 1)
{ {
int64_t _w = 0; int64_t _w = 0;
if (state->tmu1_w)
_w = (int64_t)((1ULL << 48) / state->tmu1_w);
if (tmu) if (tmu)
{ {
state->tex_s = (int32_t)(((state->tmu1_s >> 14) * _w) >> 30); if (state->tmu1_w)
state->tex_t = (int32_t)(((state->tmu1_t >> 14) * _w) >> 30); _w = (int64_t)((1ULL << 48) / state->tmu1_w);
state->tex_s = (int32_t)(((((state->tmu1_s + (1 << 13)) >> 14) * _w) + (1 << 29)) >> 30);
state->tex_t = (int32_t)(((((state->tmu1_t + (1 << 13)) >> 14) * _w) + (1 << 29)) >> 30);
} }
else else
{ {
state->tex_s = (int32_t)(((state->tmu0_s >> 14) * _w) >> 30); if (state->tmu0_w)
state->tex_t = (int32_t)(((state->tmu0_t >> 14) * _w) >> 30); _w = (int64_t)((1ULL << 48) / state->tmu0_w);
state->tex_s = (int32_t)(((((state->tmu0_s + (1 << 13)) >> 14) * _w) + (1 << 29)) >> 30);
state->tex_t = (int32_t)(((((state->tmu0_t + (1 << 13)) >> 14) * _w) + (1 << 29)) >> 30);
} }
state->lod = state->tmu[tmu].lod + (fastlog(_w) - (19 << 8)); state->lod = state->tmu[tmu].lod + (fastlog(_w) - (19 << 8));