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added GS alpha test emulation

This commit is contained in:
aap 2020-04-25 12:16:04 +02:00
parent 5ffbde3890
commit d8d13d4429
3 changed files with 46 additions and 7 deletions
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26
src/d3d/d3d9render.cpp
View File

@ -23,7 +23,7 @@ void defaultRenderCB_Shader(Atomic *atomic, InstanceDataHeader *header) {}
#else
void
drawInst(d3d9::InstanceDataHeader *header, d3d9::InstanceData *inst)
drawInst_simple(d3d9::InstanceDataHeader *header, d3d9::InstanceData *inst)
{
d3d::flushCache();
d3ddevice->DrawIndexedPrimitive((D3DPRIMITIVETYPE)header->primType, inst->baseIndex,
@ -36,27 +36,41 @@ void
drawInst_GSemu(d3d9::InstanceDataHeader *header, InstanceData *inst)
{
uint32 hasAlpha;
int alphafunc;
int alphafunc, alpharef, gsalpharef;
int zwrite;
d3d::getRenderState(D3DRS_ALPHABLENDENABLE, &hasAlpha);
if(hasAlpha){
zwrite = rw::GetRenderState(rw::ZWRITEENABLE);
alphafunc = rw::GetRenderState(rw::ALPHATESTFUNC);
if(zwrite){
alpharef = rw::GetRenderState(rw::ALPHATESTREF);
gsalpharef = rw::GetRenderState(rw::GSALPHATESTREF);
SetRenderState(rw::ALPHATESTFUNC, rw::ALPHAGREATEREQUAL);
drawInst(header, inst);
SetRenderState(rw::ALPHATESTREF, gsalpharef);
drawInst_simple(header, inst);
SetRenderState(rw::ALPHATESTFUNC, rw::ALPHALESS);
SetRenderState(rw::ZWRITEENABLE, 0);
drawInst(header, inst);
drawInst_simple(header, inst);
SetRenderState(rw::ZWRITEENABLE, 1);
SetRenderState(rw::ALPHATESTFUNC, alphafunc);
SetRenderState(rw::ALPHATESTREF, alpharef);
}else{
SetRenderState(rw::ALPHATESTFUNC, rw::ALPHAALWAYS);
drawInst(header, inst);
drawInst_simple(header, inst);
SetRenderState(rw::ALPHATESTFUNC, alphafunc);
}
}else
drawInst(header, inst);
drawInst_simple(header, inst);
}
void
drawInst(d3d9::InstanceDataHeader *header, d3d9::InstanceData *inst)
{
if(rw::GetRenderState(rw::GSALPHATEST))
drawInst_GSemu(header, inst);
else
drawInst_simple(header, inst);
}
void

20
src/d3d/d3ddevice.cpp
View File

@ -79,6 +79,11 @@ struct RwStateCache {
uint32 cullmode;
uint32 alphafunc;
uint32 alpharef;
// emulation of PS2 GS
bool32 gsalpha;
uint32 gsalpharef;
RwRasterStateCache texstage[MAXNUMSTAGES];
};
static RwStateCache rwStateCache;
@ -548,6 +553,12 @@ setRwRenderState(int32 state, void *pvalue)
setRenderState(D3DRS_ALPHAREF, rwStateCache.alpharef);
}
break;
case GSALPHATEST:
rwStateCache.gsalpha = value;
break;
case GSALPHATESTREF:
rwStateCache.gsalpharef = value;
break;
}
}
@ -605,6 +616,12 @@ getRwRenderState(int32 state)
case ALPHATESTREF:
val = rwStateCache.alpharef;
break;
case GSALPHATEST:
val = rwStateCache.gsalpha;
break;
case GSALPHATESTREF:
val = rwStateCache.gsalpharef;
break;
default:
val = 0;
}
@ -1326,6 +1343,9 @@ initD3D(void)
d3ddevice->SetRenderState(D3DRS_ALPHAREF, 10);
rwStateCache.alpharef = 10;
rwStateCache.gsalpha = 0;
rwStateCache.gsalpharef = 128;
d3ddevice->SetRenderState(D3DRS_FOGENABLE, FALSE);
rwStateCache.fogenable = 0;
d3ddevice->SetRenderState(D3DRS_FOGTABLEMODE, D3DFOG_LINEAR);

7
src/rwrender.h
View File

@ -24,7 +24,12 @@ enum RenderState
// platform specific or opaque?
ALPHATESTFUNC,
ALPHATESTREF
ALPHATESTREF,
// emulation of PS2 GS alpha test
// in the mode where it still writes color but nor depth
GSALPHATEST,
GSALPHATESTREF
};
enum AlphaTestFunc