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remove more per-pixel checks

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This commit is contained in:
StapleButter 2017-06-01 14:59:41 +02:00
parent 27c023a0cc
commit d1781c8bf2
1 changed files with 4 additions and 19 deletions
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23
src/GPU3D_Soft.cpp
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@ -986,13 +986,12 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y)
s32 x = xstart;
Interpolator interpX(xstart, xend+1, wl, wr, 8);
if (x < 0) x = 0;
// part 1: left edge
edge = yedge | 0x1;
for (; x < xstart+l_edgelen; x++)
{
if (x < 0) continue;
if (x > 255) break;
u32 pixeladdr = 258*3 + 1 + (y*258*3) + x;
u32 attr = (polygon->Attr & 0x3F008000) | edge;
@ -1102,11 +1101,6 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y)
if (polygon->IsShadow) dstattr |= (1<<30);
// skip if polygon IDs are equal
// note: this only happens if the destination pixel was translucent
// or always when drawing a shadow
// (the GPU keeps track of which pixels are translucent, regardless of
// the destination alpha)
// TODO: they say that there are two separate polygon ID buffers. verify that.
if ((dstattr & 0x7F000000) == (attr & 0x7F000000))
continue;
@ -1129,9 +1123,6 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y)
if (wireframe && !edge) x = xend-r_edgelen+1;
else for (; x <= xend-r_edgelen; x++)
{
if (x < 0) continue;
if (x > 255) break;
u32 pixeladdr = 258*3 + 1 + (y*258*3) + x;
u32 attr = (polygon->Attr & 0x3F008000) | edge;
@ -1212,13 +1203,12 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y)
AttrBuffer[pixeladdr] = attr;
}
if (xend > 255) xend = 255;
// part 3: right edge
edge = yedge | 0x2;
for (; x <= xend; x++)
{
if (x < 0) continue;
if (x > 255) break;
u32 pixeladdr = 258*3 + 1 + (y*258*3) + x;
u32 attr = (polygon->Attr & 0x3F008000) | edge;
@ -1328,11 +1318,6 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y)
if (polygon->IsShadow) dstattr |= (1<<30);
// skip if polygon IDs are equal
// note: this only happens if the destination pixel was translucent
// or always when drawing a shadow
// (the GPU keeps track of which pixels are translucent, regardless of
// the destination alpha)
// TODO: they say that there are two separate polygon ID buffers. verify that.
if ((dstattr & 0x7F000000) == (attr & 0x7F000000))
continue;