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Software: Use new scissor logic

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Unlike the hardware backends, the software renderer can use multiple scissor rectangles (though this will result in extra rasterization).
This commit is contained in:
Pokechu22
2021-11-09 18:38:24 -08:00
parent 076392a0f6
commit 925ceab82f
5 changed files with 66 additions and 48 deletions
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10
Source/Core/VideoBackends/Software/Clipper.cpp
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@ -307,7 +307,7 @@ void ProcessTriangle(OutputVertexData* v0, OutputVertexData* v1, OutputVertexDat
PerspectiveDivide(v0);
PerspectiveDivide(v1);
PerspectiveDivide(v2);
Rasterizer::UpdateZSlope(v0, v1, v2);
Rasterizer::UpdateZSlope(v0, v1, v2, bpmem.scissorOffset.x * 2, bpmem.scissorOffset.y * 2);
INCSTAT(g_stats.this_frame.num_triangles_culled)
return;
}
@ -320,7 +320,7 @@ void ProcessTriangle(OutputVertexData* v0, OutputVertexData* v1, OutputVertexDat
PerspectiveDivide(v0);
PerspectiveDivide(v2);
PerspectiveDivide(v1);
Rasterizer::UpdateZSlope(v0, v2, v1);
Rasterizer::UpdateZSlope(v0, v2, v1, bpmem.scissorOffset.x * 2, bpmem.scissorOffset.y * 2);
INCSTAT(g_stats.this_frame.num_triangles_culled)
return;
}
@ -533,10 +533,8 @@ void PerspectiveDivide(OutputVertexData* vertex)
Vec3& screen = vertex->screenPosition;
float wInverse = 1.0f / projected.w;
screen.x =
projected.x * wInverse * xfmem.viewport.wd + xfmem.viewport.xOrig - bpmem.scissorOffset.x * 2;
screen.y =
projected.y * wInverse * xfmem.viewport.ht + xfmem.viewport.yOrig - bpmem.scissorOffset.y * 2;
screen.x = projected.x * wInverse * xfmem.viewport.wd + xfmem.viewport.xOrig;
screen.y = projected.y * wInverse * xfmem.viewport.ht + xfmem.viewport.yOrig;
screen.z = projected.z * wInverse * xfmem.viewport.zRange + xfmem.viewport.farZ;
}
} // namespace Clipper