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Restore wrongly removed triangle clipping.

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This commit is contained in:
Sergey Lipskiy 2014-06-08 15:00:33 +07:00
parent 1b084dfd7b
commit deed5ecd01
2 changed files with 54 additions and 38 deletions
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86
gSP.cpp
View File

@ -151,32 +151,19 @@ u32 __indexmap_getnew(u32 index, u32 num)
void gSPTriangle(s32 v0, s32 v1, s32 v2)
{
if ((v0 < INDEXMAP_SIZE) && (v1 < INDEXMAP_SIZE) && (v2 < INDEXMAP_SIZE))
{
if ((v0 < INDEXMAP_SIZE) && (v1 < INDEXMAP_SIZE) && (v2 < INDEXMAP_SIZE)) {
#ifdef __TRIBUFFER_OPT
v0 = OGL.triangles.indexmap[v0];
v1 = OGL.triangles.indexmap[v1];
v2 = OGL.triangles.indexmap[v2];
v0 = OGL.triangles.indexmap[v0];
v1 = OGL.triangles.indexmap[v1];
v2 = OGL.triangles.indexmap[v2];
#endif
if (OGL.triangles.vertices[v0].clip & OGL.triangles.vertices[v1].clip & OGL.triangles.vertices[v2].clip)
return;
OGL_AddTriangle(v0, v1, v2);
}
#if 0
// Don't bother with triangles completely outside clipping frustrum
if (config.enableClipping)
{
if (OGL.triangles.vertices[v0].clip & OGL.triangles.vertices[v1].clip & OGL.triangles.vertices[v2].clip)
{
return;
}
}
#endif
OGL_AddTriangle(v0, v1, v2);
}
gDP.colorImage.changed = TRUE;
gDP.colorImage.height = (unsigned int)(max( gDP.colorImage.height, gDP.scissor.lry ));
gDP.colorImage.changed = TRUE;
gDP.colorImage.height = (unsigned int)(max( gDP.colorImage.height, gDP.scissor.lry ));
}
void gSP1Triangle( const s32 v0, const s32 v1, const s32 v2)
@ -316,6 +303,20 @@ static void gSPBillboardVertex4_default(u32 v)
OGL.triangles.vertices[v+3].w += OGL.triangles.vertices[i].w;
}
void gSPClipVertex4(u32 v)
{
int i;
for(i = 0; i < 4; i++){
SPVertex *vtx = &OGL.triangles.vertices[v+i];
vtx->clip = 0;
if (vtx->x > +vtx->w) vtx->clip |= CLIP_POSX;
if (vtx->x < -vtx->w) vtx->clip |= CLIP_NEGX;
if (vtx->y > +vtx->w) vtx->clip |= CLIP_POSY;
if (vtx->y < -vtx->w) vtx->clip |= CLIP_NEGY;
if (vtx->w < 0.01f) vtx->clip |= CLIP_Z;
}
}
void gSPProcessVertex4(u32 v)
{
if (gSP.changed & CHANGED_MATRIX)
@ -374,6 +375,8 @@ void gSPProcessVertex4(u32 v)
}
}
}
gSPClipVertex4(v);
}
#endif
@ -431,6 +434,17 @@ void gSPCombineMatrices()
gSP.changed &= ~CHANGED_MATRIX;
}
void gSPClipVertex(u32 v)
{
SPVertex *vtx = &OGL.triangles.vertices[v];
vtx->clip = 0;
if (vtx->x > +vtx->w) vtx->clip |= CLIP_POSX;
if (vtx->x < -vtx->w) vtx->clip |= CLIP_NEGX;
if (vtx->y > +vtx->w) vtx->clip |= CLIP_POSY;
if (vtx->y < -vtx->w) vtx->clip |= CLIP_NEGY;
if (vtx->w < 0.01f) vtx->clip |= CLIP_Z;
}
void gSPProcessVertex( u32 v )
{
if (gSP.changed & CHANGED_MATRIX)
@ -455,6 +469,8 @@ void gSPProcessVertex( u32 v )
OGL.triangles.vertices[v].z = -OGL.triangles.vertices[v].w;
}
gSPClipVertex(v);
OGL.triangles.vertices[v].HWLight = 0;
if (gSP.geometryMode & G_LIGHTING) {
gSPLightVertex(v);
@ -1265,24 +1281,24 @@ void gSP1Quadrangle( s32 v0, s32 v1, s32 v2, s32 v3 )
bool gSPCullVertices( u32 v0, u32 vn )
{
s32 v = v0;
s32 v = v0;
#ifdef __TRIBUFFER_OPT
v = OGL.triangles.indexmap[v0];
v = OGL.triangles.indexmap[v0];
#endif
u32 clip = OGL.triangles.vertices[v].clip;
if (clip == 0)
return FALSE;
u32 clip = OGL.triangles.vertices[v].clip;
if (clip == 0)
return false;
for (unsigned int i = (v0+1); i <= vn; i++)
{
v = i;
for (unsigned int i = (v0+1); i <= vn; i++)
{
v = i;
#ifdef __TRIBUFFER_OPT
v = OGL.triangles.indexmap[i];
v = OGL.triangles.indexmap[i];
#endif
if (OGL.triangles.vertices[v].clip != clip) return FALSE;
}
return TRUE;
if (OGL.triangles.vertices[v].clip != clip) return FALSE;
}
return false;
}
void gSPCullDisplayList( u32 v0, u32 vn )

6
gSP.h
View File

@ -54,9 +54,9 @@ if \
#define CLIP_NEGY 0x04
#define CLIP_POSY 0x08
#define CLIP_Z 0x30
#define CLIP_NEGZ 0x10
#define CLIP_POSZ 0x20
#define CLIP_Z 0x10
#define CLIP_ALL 0x1F // CLIP_NEGX|CLIP_POSX|CLIP_NEGY|CLIP_POSY|CLIP_Z
#define SC_POSITION 1
#define SC_COLOR 2