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GSdx: this fixes some of the flickering in THPS, objects in the far distance still have some z-fighting problem, z values used are too large and too close to each other. 

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@4976 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
gabest11 2011-12-03 21:04:46 +00:00
parent f1537f53a2
commit 0d7c58065a
3 changed files with 31 additions and 23 deletions
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41
plugins/GSdx/GSRasterizer.cpp
View File

@ -196,9 +196,12 @@ void GSRasterizer::DrawLine(const GSVertexSW* v)
{
GSVertexSW dscan = dv / dv.p.xxxx();
GSVector4 x0 = l.p.xxxx();
GSVector4 y0 = l.p.yyyy();
l.p = l.p.upl(r).xyzw(l.p); // r.x => l.y
DrawTriangleSection(p.y, p.y + 1, l, dl, dscan, l.p.xxxx());
DrawTriangleSection(p.y, p.y + 1, l, dl, dscan, x0, y0);
Flush(v, dscan);
}
@ -348,14 +351,10 @@ void GSRasterizer::DrawTriangle(const GSVertexSW* vertices)
{
edge = v[1 - j];
GSVector4 dy = tbmax.xxxx() - edge.p.yyyy();
edge.p = edge.p.insert<0, 1>(v[j].p);
dedge.p = ddx[2 - (j << 1)].yzzw(dedge.p);
edge += dedge * dy;
DrawTriangleSection(tb.x, tb.w, edge, dedge, dscan, v[1 - j].p.xxxx());
DrawTriangleSection(tb.x, tb.w, edge, dedge, dscan, v[1 - j].p.xxxx(), v[1 - j].p.yyyy());
}
}
else
@ -366,28 +365,20 @@ void GSRasterizer::DrawTriangle(const GSVertexSW* vertices)
{
edge = v[0];
GSVector4 dy = tbmax.xxxx() - edge.p.yyyy();
edge.p = edge.p.xxzw();
dedge.p = ddx[j].xyzw(dedge.p);
edge += dedge * dy;
DrawTriangleSection(tb.x, tb.z, edge, dedge, dscan, x0);
DrawTriangleSection(tb.x, tb.z, edge, dedge, dscan, x0, v[0].p.yyyy());
}
if(tb.y < tb.w)
{
edge = v[1];
GSVector4 dy = tbmax.zzzz() - edge.p.yyyy();
edge.p = (x0 + ddx[j] * dv[0].p.yyyy()).xyzw(edge.p);
dedge.p = ddx[2 - (j << 1)].yzzw(dedge.p);
edge += dedge * dy;
DrawTriangleSection(tb.y, tb.w, edge, dedge, dscan, v[1].p.xxxx());
DrawTriangleSection(tb.y, tb.w, edge, dedge, dscan, v[1].p.xxxx(), v[1].p.yyyy());
}
}
@ -410,7 +401,7 @@ void GSRasterizer::DrawTriangle(const GSVertexSW* vertices)
}
}
void GSRasterizer::DrawTriangleSection(int top, int bottom, GSVertexSW& edge, const GSVertexSW& dedge, const GSVertexSW& dscan, const GSVector4& x0)
void GSRasterizer::DrawTriangleSection(int top, int bottom, GSVertexSW& edge, const GSVertexSW& dedge, const GSVertexSW& dscan, const GSVector4& x0, const GSVector4& y0)
{
ASSERT(top < bottom);
ASSERT(edge.p.x <= edge.p.y);
@ -419,11 +410,17 @@ void GSRasterizer::DrawTriangleSection(int top, int bottom, GSVertexSW& edge, co
GSVector4 scissor = m_fscissor.xzxz();
GSVector4 prestep = GSVector4(top) - y0;
GSVertexSW o = dedge * prestep;
while(1)
{
if(IsOneOfMyScanlines(top))
{
GSVector4 lrf = edge.p.ceil();
GSVertexSW scan = edge + o;
GSVector4 lrf = scan.p.ceil();
GSVector4 l = lrf.max(scissor);
GSVector4 r = lrf.min(scissor);
GSVector4i lr = GSVector4i(l.xxyy(r));
@ -437,15 +434,17 @@ void GSRasterizer::DrawTriangleSection(int top, int bottom, GSVertexSW& edge, co
{
m_stats.pixels += pixels;
GSVector4 prestep = l.xxxx() - x0;
prestep = l.xxxx() - x0;
AddScanline(e++, pixels, left, top, edge + dscan * prestep);
AddScanline(e++, pixels, left, top, scan + dscan * prestep);
}
}
if(++top >= bottom) break;
edge += dedge;
// NOTE: it is more accurate to accumlate the offset, edge values (especially p.z) may become too large compared to dedge (example: 8000000 + 259.4 == 8000000 + 259.3)
o += dedge;
}
m_edge.count += e - &m_edge.buff[m_edge.count];

2
plugins/GSdx/GSRasterizer.h
View File

@ -116,7 +116,7 @@ protected:
void DrawTriangle(const GSVertexSW* v);
void DrawSprite(const GSVertexSW* v);
__forceinline void DrawTriangleSection(int top, int bottom, GSVertexSW& edge, const GSVertexSW& dedge, const GSVertexSW& dscan, const GSVector4& x0);
__forceinline void DrawTriangleSection(int top, int bottom, GSVertexSW& edge, const GSVertexSW& dedge, const GSVertexSW& dscan, const GSVector4& x0, const GSVector4& y0);
void DrawEdge(const GSVertexSW& v0, const GSVertexSW& v1, const GSVertexSW& dv, int orientation, int side);

11
plugins/GSdx/GSTextureSW.cpp
View File

@ -156,7 +156,16 @@ bool GSTextureSW::Save(const string& fn, bool dds)
for(int h = m_size.y; h > 0; h--, data -= m_pitch)
{
fwrite(data, 1, m_size.x << 2, fp); // TODO: swap red-blue?
for(int i = 0; i < m_size.x; i++)
{
uint32 c = ((uint32*)data)[i];
c = (c & 0xff00ff00) | ((c & 0x00ff0000) >> 16) | ((c & 0x000000ff) << 16);
fwrite(&c, 1, sizeof(c), fp);
}
// fwrite(data, 1, m_size.x << 2, fp); // TODO: swap red-blue?
}
fclose(fp);