mirror of https://github.com/PCSX2/pcsx2.git
GSdx: Replaced a few divs with something more obscure in DrawTriangle, it shares necessary calculations with the triangle setup for tile based rasterization (http://drdobbs.com/article/print?articleId=217200602). AVX already has half the floating point capacity of larrabee, but I'm still thinking how to do this efficiently. We could take advantage of the block organized GS memory at last.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@4498 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
parent
4b460160cc
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47713eee81
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@ -82,6 +82,8 @@ void GSRasterizer::Draw(const GSRasterizerData* data)
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int64 start = __rdtsc();
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int64 start = __rdtsc();
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// NOTE: data->scissor_test with templated Draw* speeds up large point lists (ffxii videos), but do not seem to make any difference for others
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switch(data->primclass)
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switch(data->primclass)
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{
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{
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case GS_POINT_CLASS:
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case GS_POINT_CLASS:
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@ -185,7 +187,7 @@ void GSRasterizer::DrawLine(const GSVertexSW* v)
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l.p = l.p.upl(r).xyzw(l.p); // r.x => l.y
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l.p = l.p.upl(r).xyzw(l.p); // r.x => l.y
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DrawTriangleSection(p.y, p.y + 1, l, dl, dscan);
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DrawTriangleSection(p.y, p.y + 1, l, dl, dscan, l.p.xxxx());
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Flush(v, dscan);
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Flush(v, dscan);
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}
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}
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@ -244,10 +246,10 @@ static const int s_abc[8][4] =
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void GSRasterizer::DrawTriangle(const GSVertexSW* vertices)
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void GSRasterizer::DrawTriangle(const GSVertexSW* vertices)
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{
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{
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GSVertexSW v[4];
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GSVertexSW v[3];
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GSVertexSW dv[3];
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GSVertexSW dv[3];
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GSVertexSW ddv[3];
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GSVertexSW edge;
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GSVertexSW longest;
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GSVertexSW dedge;
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GSVertexSW dscan;
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GSVertexSW dscan;
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GSVector4 aabb = vertices[0].p.yyyy(vertices[1].p);
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GSVector4 aabb = vertices[0].p.yyyy(vertices[1].p);
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@ -264,6 +266,8 @@ void GSRasterizer::DrawTriangle(const GSVertexSW* vertices)
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int i = (aabb == bccb).mask() & 7;
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int i = (aabb == bccb).mask() & 7;
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if(i == 7) return; // a == b == c
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GSVector4 tbf = aabb.xzxz(bccb).ceil();
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GSVector4 tbf = aabb.xzxz(bccb).ceil();
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GSVector4 tbmax = tbf.max(m_fscissor.ywyw());
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GSVector4 tbmax = tbf.max(m_fscissor.ywyw());
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GSVector4 tbmin = tbf.min(m_fscissor.ywyw());
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GSVector4 tbmin = tbf.min(m_fscissor.ywyw());
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@ -273,47 +277,129 @@ void GSRasterizer::DrawTriangle(const GSVertexSW* vertices)
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dv[1] = v[2] - v[0];
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dv[1] = v[2] - v[0];
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dv[2] = v[2] - v[1];
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dv[2] = v[2] - v[1];
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switch(i)
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GSVector4 cross = dv[0].p * dv[1].p.yxwz();
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{
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case 0: // a < b < c
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ddv[0] = dv[0] / dv[0].p.yyyy();
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ddv[1] = dv[1] / dv[1].p.yyyy();
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ddv[2] = dv[2] / dv[2].p.yyyy();
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longest = ddv[1] * dv[0].p.yyyy() - dv[0];
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v[3] = v[1] + longest; // point between v[0] and v[2] where y == v[1].y
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break;
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case 1: // a == b < c
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ddv[1] = dv[1] / dv[1].p.yyyy();
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ddv[2] = dv[2] / dv[2].p.yyyy();
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longest = dv[0]; // should be negated to be equal to "ddv[1] * dv[0].p.yyyy() - dv[0]", but it's easier to change the index of v/ddv later
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break;
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case 4: // a < b == c
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ddv[0] = dv[0] / dv[0].p.yyyy();
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ddv[1] = dv[1] / dv[1].p.yyyy();
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longest = dv[2];
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break;
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case 7: // a == b == c
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return;
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default:
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__assume(0);
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}
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int j = longest.p.upl(longest.p == GSVector4::zero()).mask();
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cross = (cross - cross.yxwz()).yyyy(); // select the second component, the negated cross product
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// the longest horizontal span would be cross.x / dv[1].p.y, but we don't need its actual value
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int j = cross.upl(cross == GSVector4::zero()).mask();
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if(j & 2) return;
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if(j & 2) return;
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j &= 1;
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j &= 1;
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dscan = longest * longest.p.xxxx().rcp();
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cross = cross.rcpnr();
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GSVector4 dv01xy = dv[0].p.xyxy(dv[1].p);
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GSVector4 _z = dv01xy * dv[1].p.zzzz(dv[0].p);
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GSVector4 _f = dv01xy * dv[1].p.wwww(dv[0].p);
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GSVector4 _zf = (_z.yzyz(_f) - _z.wxwx(_f)) * cross;
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dscan.p = _zf.xzxz();
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dedge.p = _zf.ywyw();
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GSVector4 _s = dv01xy * dv[1].t.xxxx(dv[0].t);
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GSVector4 _t = dv01xy * dv[1].t.yyyy(dv[0].t);
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GSVector4 _q = dv01xy * dv[1].t.zzzz(dv[0].t);
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GSVector4 _st = (_s.yzyz(_t) - _s.wxwx(_t)) * cross;
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GSVector4 _q_ = (_q.yzyz() - _q.wxwx()) * cross;
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dscan.t = _st.xzxz(_q_);
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dedge.t = _st.ywyw(_q_);
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GSVector4 _r = dv01xy * dv[1].c.xxxx(dv[0].c);
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GSVector4 _g = dv01xy * dv[1].c.yyyy(dv[0].c);
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GSVector4 _b = dv01xy * dv[1].c.zzzz(dv[0].c);
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GSVector4 _a = dv01xy * dv[1].c.wwww(dv[0].c);
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GSVector4 _rg = (_r.yzyz(_g) - _r.wxwx(_g)) * cross;
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GSVector4 _ba = (_b.yzyz(_a) - _b.wxwx(_a)) * cross;
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dscan.c = _rg.xzxz(_ba);
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dedge.c = _rg.ywyw(_ba);
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GSVector4 dx = dv01xy.xzxy(dv[2].p);
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GSVector4 dy = dv01xy.ywyx(dv[2].p);
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GSVector4 ddx[3];
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ddx[0] = dx / dy;
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ddx[1] = ddx[0].yxzw();
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ddx[2] = ddx[0].xzyw();
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GSVector4 x0;
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switch(i)
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{
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case 0: // a < b < c
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case 4: // a < b == c
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x0 = v[0].p.xxxx();
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if(tb.x < tb.z)
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{
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edge = v[0];
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GSVector4 dy = tbmax.xxxx() - edge.p.yyyy();
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edge.p = edge.p.xxzw();
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dedge.p = ddx[j].xyzw(dedge.p);
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edge += dedge * dy;
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DrawTriangleSection(tb.x, tb.z, edge, dedge, dscan, x0);
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}
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if(tb.y < tb.w)
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{
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edge = v[1];
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GSVector4 dy = tbmax.zzzz() - edge.p.yyyy();
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edge.p = (x0 + ddx[j] * dv[0].p.yyyy()).xyzw(edge.p);
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dedge.p = ddx[2 - (j << 1)].yzzw(dedge.p);
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edge += dedge * dy;
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DrawTriangleSection(tb.y, tb.w, edge, dedge, dscan, v[1].p.xxxx());
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}
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break;
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case 1: // a == b < c
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if(tb.y < tb.w)
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{
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edge = v[1 - j];
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GSVector4 dy = tbmax.xxxx() - edge.p.yyyy();
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edge.p = edge.p.insert<0, 1>(v[j].p);
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dedge.p = ddx[2 - (j << 1)].yzzw(dedge.p);
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edge += dedge * dy;
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DrawTriangleSection(tb.x, tb.w, edge, dedge, dscan, v[1 - j].p.xxxx());
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}
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break;
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default:
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__assume(0);
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}
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Flush(v, dscan);
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if(m_ds->IsEdge())
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if(m_ds->IsEdge())
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{
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{
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GSVector4 dx = dv[0].p.upl(dv[1].p).xyxy(dv[2].p);
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GSVector4 dy = dv[0].p.upl(dv[1].p).zwyx(dv[2].p);
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GSVector4 a = dx.abs() < dy.abs(); // |dx| <= |dy|
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GSVector4 a = dx.abs() < dy.abs(); // |dx| <= |dy|
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GSVector4 b = dx < GSVector4::zero(); // dx < 0
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GSVector4 b = dx < GSVector4::zero(); // dx < 0
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GSVector4 c = longest.p.xxxx() < GSVector4::zero(); // longest.p.x < 0
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GSVector4 c = cross < GSVector4::zero(); // longest.p.x < 0
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int i = a.mask();
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int i = a.mask();
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int j = ((a | b) ^ c).mask() ^ 2; // evil
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int j = ((a | b) ^ c).mask() ^ 2; // evil
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Flush(v, GSVertexSW::zero(), true);
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Flush(v, GSVertexSW::zero(), true);
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}
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}
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switch(i)
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{
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case 0: // a < b < c
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if(tb.x < tb.z)
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{
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GSVertexSW l = v[0];
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GSVertexSW dl = ddv[j];
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GSVector4 dy = tbmax.xxxx() - l.p.yyyy();
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l.p = l.p.xxzw(); // r.x => l.y
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dl.p = dl.p.insert<0, 1>(ddv[1 - j].p); // dr.x => dl.y
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l += dl * dy;
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DrawTriangleSection(tb.x, tb.z, l, dl, dscan);
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}
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}
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if(tb.y < tb.w)
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void GSRasterizer::DrawTriangleSection(int top, int bottom, GSVertexSW& edge, const GSVertexSW& dedge, const GSVertexSW& dscan, const GSVector4& x0)
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{
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// TODO: j == 1 (x2 < x3 < x0 < x1)
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// v[3] isn't accurate enough, it may leave gaps horizontally if it happens to be on the left side of the triangle
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// example: previous triangle's scanline ends on 48.9999, this one's starts from 49.0001, the pixel at 49 isn't drawn
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GSVertexSW l = v[1 + (j << 1)];
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GSVertexSW dl = ddv[2 - j];
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GSVector4 dy = tbmax.zzzz() - l.p.yyyy();
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l.p = l.p.insert<0, 1>(v[3 - (j << 1)].p); // r.x => l.y
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dl.p = dl.p.insert<0, 1>(ddv[1 + j].p); // dr.x => dl.y
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l += dl * dy;
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DrawTriangleSection(tb.y, tb.w, l, dl, dscan);
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}
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break;
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case 1: // a == b < c
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if(tb.x < tb.w)
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{
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GSVertexSW l = v[j];
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GSVertexSW dl = ddv[1 + j];
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GSVector4 dy = tbmax.xxxx() - l.p.yyyy();
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l.p = l.p.insert<0, 1>(v[1 - j].p); // r.x => l.y
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dl.p = dl.p.insert<0, 1>(ddv[2 - j].p); // dr.x => dl.y
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l += dl * dy;
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DrawTriangleSection(tb.x, tb.w, l, dl, dscan);
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}
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break;
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case 4: // a < b == c
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if(tb.x < tb.w)
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{
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GSVertexSW l = v[0];
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GSVertexSW dl = ddv[j];
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GSVector4 dy = tbmax.xxxx() - l.p.yyyy();
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l.p = l.p.xxzw(); // r.x => l.y
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dl.p = dl.p.insert<0, 1>(ddv[1 - j].p); // dr.x => dl.y
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l += dl * dy;
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DrawTriangleSection(tb.x, tb.w, l, dl, dscan);
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}
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break;
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default:
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__assume(0);
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}
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Flush(v, dscan);
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}
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void GSRasterizer::DrawTriangleSection(int top, int bottom, GSVertexSW& l, const GSVertexSW& dl, const GSVertexSW& dscan)
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{
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{
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ASSERT(top < bottom);
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ASSERT(top < bottom);
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ASSERT(edge.p.x <= edge.p.y);
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GSVertexSW* RESTRICT e = &m_edge.buff[m_edge.count];
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GSVertexSW* RESTRICT e = &m_edge.buff[m_edge.count];
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{
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{
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if(IsOneOfMyScanlines(top))
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if(IsOneOfMyScanlines(top))
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{
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{
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GSVector4 lrf = l.p.ceil();
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GSVector4 lrf = edge.p.ceil();
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GSVector4 lrmax = lrf.max(scissor);
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GSVector4 l = lrf.max(scissor);
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GSVector4 lrmin = lrf.min(scissor);
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GSVector4 r = lrf.min(scissor);
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GSVector4i lr = GSVector4i(lrmax.xxyy(lrmin));
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GSVector4i lr = GSVector4i(l.xxyy(r));
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int left = lr.extract32<0>();
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int left = lr.extract32<0>();
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int right = lr.extract32<2>();
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int right = lr.extract32<2>();
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{
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{
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m_stats.pixels += pixels;
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m_stats.pixels += pixels;
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GSVector4 prestep = lrmax - l.p;
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GSVector4 prestep = l.xxxx() - x0;
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AddScanline(e, pixels, left, top, l + dscan * prestep.xxxx());
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AddScanline(e++, pixels, left, top, edge + dscan * prestep);
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e++;
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}
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}
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}
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}
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if(++top >= bottom) break;
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if(++top >= bottom) break;
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l += dl;
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edge += dedge;
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}
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}
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m_edge.count += e - &m_edge.buff[m_edge.count];
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m_edge.count += e - &m_edge.buff[m_edge.count];
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@ -530,6 +531,7 @@ void GSRasterizer::DrawEdge(const GSVertexSW& v0, const GSVertexSW& v1, const GS
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// TODO: bit slow and too much duplicated code
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// TODO: bit slow and too much duplicated code
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// TODO: inner pre-step is still missing (hardly noticable)
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// TODO: inner pre-step is still missing (hardly noticable)
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// TODO: it does not always line up with the edge of the surrounded triangle
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GSVertexSW* RESTRICT e = &m_edge.buff[m_edge.count];
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GSVertexSW* RESTRICT e = &m_edge.buff[m_edge.count];
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||||||
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@ -582,7 +584,7 @@ void GSRasterizer::DrawEdge(const GSVertexSW& v0, const GSVertexSW& v1, const GS
|
||||||
int xi = x >> 16;
|
int xi = x >> 16;
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||||||
int xf = x & 0xffff;
|
int xf = x & 0xffff;
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||||||
|
|
||||||
if(m_scissor.left <= xi && xi < m_scissor.right && IsOneOfMyScanlines(xi))
|
if(m_scissor.left <= xi && xi < m_scissor.right && IsOneOfMyScanlines(top))
|
||||||
{
|
{
|
||||||
AddScanline(e, 1, xi, top, edge);
|
AddScanline(e, 1, xi, top, edge);
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||||||
|
|
||||||
|
@ -604,7 +606,7 @@ void GSRasterizer::DrawEdge(const GSVertexSW& v0, const GSVertexSW& v1, const GS
|
||||||
int xi = (x >> 16) + 1;
|
int xi = (x >> 16) + 1;
|
||||||
int xf = x & 0xffff;
|
int xf = x & 0xffff;
|
||||||
|
|
||||||
if(m_scissor.left <= xi && xi < m_scissor.right && IsOneOfMyScanlines(xi))
|
if(m_scissor.left <= xi && xi < m_scissor.right && IsOneOfMyScanlines(top))
|
||||||
{
|
{
|
||||||
AddScanline(e, 1, xi, top, edge);
|
AddScanline(e, 1, xi, top, edge);
|
||||||
|
|
||||||
|
|
|
@ -101,7 +101,7 @@ protected:
|
||||||
void DrawTriangle(const GSVertexSW* v);
|
void DrawTriangle(const GSVertexSW* v);
|
||||||
void DrawSprite(const GSVertexSW* v);
|
void DrawSprite(const GSVertexSW* v);
|
||||||
|
|
||||||
__forceinline void DrawTriangleSection(int top, int bottom, GSVertexSW& l, const GSVertexSW& dl, const GSVertexSW& dscan);
|
__forceinline void DrawTriangleSection(int top, int bottom, GSVertexSW& edge, const GSVertexSW& dedge, const GSVertexSW& dscan, const GSVector4& x0);
|
||||||
|
|
||||||
void DrawEdge(const GSVertexSW& v0, const GSVertexSW& v1, const GSVertexSW& dv, int orientation, int side);
|
void DrawEdge(const GSVertexSW& v0, const GSVertexSW& v1, const GSVertexSW& dv, int orientation, int side);
|
||||||
|
|
||||||
|
|
|
@ -3113,7 +3113,7 @@ public:
|
||||||
|
|
||||||
__forceinline GSVector8i(__m128i m0, __m128i m1)
|
__forceinline GSVector8i(__m128i m0, __m128i m1)
|
||||||
{
|
{
|
||||||
m = _mm256_insertf128_si256(_mm256_insertf128_si256(zero(), m0, 0), m1, 1);
|
this->m = zero().insert<0>(m0).insert<1>(m1);
|
||||||
}
|
}
|
||||||
|
|
||||||
__forceinline GSVector8i(const GSVector8i& v)
|
__forceinline GSVector8i(const GSVector8i& v)
|
||||||
|
@ -3401,7 +3401,11 @@ public:
|
||||||
|
|
||||||
__forceinline GSVector8(__m128 m0, __m128 m1)
|
__forceinline GSVector8(__m128 m0, __m128 m1)
|
||||||
{
|
{
|
||||||
m = _mm256_permute2f128_ps(_mm256_castps128_ps256(m0), _mm256_castps128_ps256(m1), 0x20);
|
// FIXME: MSVC bug, _mm256_castps128_ps256 may directy reload spilled regs from unaligned memory with vmovaps
|
||||||
|
|
||||||
|
// m = _mm256_permute2f128_ps(_mm256_castps128_ps256(m0), _mm256_castps128_ps256(m1), 0x20);
|
||||||
|
|
||||||
|
this->m = zero().insert<0>(m0).insert<1>(m1);
|
||||||
}
|
}
|
||||||
|
|
||||||
__forceinline GSVector8(const GSVector8& v)
|
__forceinline GSVector8(const GSVector8& v)
|
||||||
|
@ -3416,8 +3420,12 @@ public:
|
||||||
|
|
||||||
__forceinline explicit GSVector8(__m128 m)
|
__forceinline explicit GSVector8(__m128 m)
|
||||||
{
|
{
|
||||||
this->m = _mm256_castps128_ps256(m);
|
// FIXME: MSVC bug, _mm256_castps128_ps256 may directy reload spilled regs from unaligned memory with vmovaps
|
||||||
this->m = _mm256_permute2f128_ps(this->m, this->m, 0);
|
|
||||||
|
// this->m = _mm256_castps128_ps256(m);
|
||||||
|
// this->m = _mm256_permute2f128_ps(this->m, this->m, 0);
|
||||||
|
|
||||||
|
this->m = zero().insert<0>(m).xx();
|
||||||
}
|
}
|
||||||
|
|
||||||
__forceinline explicit GSVector8(__m256 m)
|
__forceinline explicit GSVector8(__m256 m)
|
||||||
|
|
Loading…
Reference in New Issue