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rasterize: fix same transparent-translucent blending on same polyids

This commit is contained in:
zeromus 2009-02-09 00:51:19 +00:00
parent 22e651884a
commit d50d5720e7
1 changed files with 19 additions and 21 deletions
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40
desmume/src/rasterize.cpp
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@ -440,7 +440,6 @@ static void triangle_from_devmaster()
Interpolator i_color_b(fx1,fx2,fx3,fy1,fy2,fy3,b1,b2,b3);
Interpolator i_tex_invu(fx1,fx2,fx3,fy1,fy2,fy3,u1,u2,u3);
Interpolator i_tex_invv(fx1,fx2,fx3,fy1,fy2,fy3,v1,v2,v3);
Interpolator i_w(fx1,fx2,fx3,fy1,fy2,fy3,w1,w2,w3);
Interpolator i_z(fx1,fx2,fx3,fy1,fy2,fy3,fz1,fz2,fz3);
Interpolator i_invw(fx1,fx2,fx3,fy1,fy2,fy3,1.0f/w1,1.0f/w2,1.0f/w3);
@ -450,7 +449,7 @@ static void triangle_from_devmaster()
i_color_b.init(minx,miny);
i_tex_invu.init(minx,miny);
i_tex_invv.init(minx,miny);
i_w.init(minx,miny); i_z.init(minx,miny);
i_z.init(minx,miny);
i_invw.init(minx,miny);
for(int y = miny; y < maxy; y++)
@ -462,7 +461,7 @@ static void triangle_from_devmaster()
bool done = false;
i_color_r.push(); i_color_g.push(); i_color_b.push();
i_tex_invu.push(); i_tex_invv.push();
i_w.push(); i_invw.push(); i_z.push();
i_invw.push(); i_z.push();
assert(y>=0 && y<192); //I dont think we need this bounds check, so it is only here as an assert
int adr = (y<<8)+minx;
@ -481,11 +480,11 @@ static void triangle_from_devmaster()
if(xaccum==1) {
i_color_r.incx(); i_color_g.incx(); i_color_b.incx();
i_tex_invu.incx(); i_tex_invv.incx();
i_w.incx(); i_invw.incx(); i_z.incx();
i_invw.incx(); i_z.incx();
} else {
i_color_r.incx(xaccum); i_color_g.incx(xaccum); i_color_b.incx(xaccum);
i_tex_invu.incx(xaccum); i_tex_invv.incx(xaccum);
i_w.incx(xaccum); i_invw.incx(xaccum); i_z.incx(xaccum);
i_invw.incx(xaccum); i_z.incx(xaccum);
}
xaccum = 0;
@ -540,30 +539,30 @@ static void triangle_from_devmaster()
goto rejected_fragment;
}
//handle polyids
bool isOpaquePixel = shaderOutput.color.components.a == 31;
if(isOpaquePixel)
{
destFragment.polyid.opaque = polyAttr.polyid;
}
else
{
//dont overwrite pixels on translucent polys with the same polyids
if(destFragment.polyid.translucent == polyAttr.polyid)
goto rejected_fragment;
destFragment.polyid.translucent = polyAttr.polyid;
}
//we shouldnt do any of this if we generated a totally transparent pixel
if(shaderOutput.color.components.a != 0)
{
//alpha blending and write to framebuffer
alphaBlend(destFragment, shaderOutput);
//handle polyids
bool isOpaquePixel = shaderOutput.color.components.a == 31;
if(isOpaquePixel)
{
destFragment.polyid.opaque = polyAttr.polyid;
}
else
{
//dont overwrite pixels on translucent polys with the same polyids
if(destFragment.polyid.translucent == polyAttr.polyid)
goto rejected_fragment;
destFragment.polyid.translucent = polyAttr.polyid;
}
//depth writing
if(isOpaquePixel || polyAttr.translucentDepthWrite)
destFragment.depth = depth;
}
} else if(done) break;
@ -580,7 +579,6 @@ static void triangle_from_devmaster()
i_color_b.pop(); i_color_b.incy();
i_tex_invu.pop(); i_tex_invu.incy();
i_tex_invv.pop(); i_tex_invv.incy();
i_w.pop(); i_w.incy();
i_z.pop(); i_z.incy();
i_invw.pop(); i_invw.incy();