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Removed r_columnmethod as its performance gains are too insignificant to justify its complexity on the codebase

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This commit is contained in:
Magnus Norddahl 2016-12-25 05:05:53 +01:00
commit b0febec986
7 changed files with 10 additions and 207 deletions
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49
src/v_draw.cpp
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@ -210,8 +210,6 @@ void DCanvas::DrawTextureParms(FTexture *img, DrawParms &parms)
if (mode != DontDraw)
{
int stop4;
double centeryback = CenterY;
CenterY = 0;
@ -277,56 +275,17 @@ void DCanvas::DrawTextureParms(FTexture *img, DrawParms &parms)
x2 = parms.rclip;
}
// Drawing short output ought to fit in the data cache well enough
// if we draw one column at a time, so do that, since it's simpler.
if (parms.destheight < 32 || (parms.dclip - parms.uclip) < 32)
{
mode = DoDraw0;
}
dc_x = int(x0);
int x2_i = int(x2);
fixed_t xiscale_i = FLOAT2FIXED(xiscale);
if (mode == DoDraw0)
while (dc_x < x2_i)
{
// One column at a time
stop4 = dc_x;
}
else // DoDraw1`
{
// Up to four columns at a time
stop4 = x2_i & ~3;
R_DrawMaskedColumn(img, frac, false, !parms.masked);
dc_x++;
frac += xiscale_i;
}
if (dc_x < x2_i)
{
while ((dc_x < stop4) && (dc_x & 3))
{
R_DrawMaskedColumn(img, frac, false, !parms.masked);
dc_x++;
frac += xiscale_i;
}
while (dc_x < stop4)
{
rt_initcols(nullptr);
for (int zz = 4; zz; --zz)
{
R_DrawMaskedColumn(img, frac, true, !parms.masked);
dc_x++;
frac += xiscale_i;
}
rt_draw4cols(dc_x - 4);
}
while (dc_x < x2_i)
{
R_DrawMaskedColumn(img, frac, false, !parms.masked);
dc_x++;
frac += xiscale_i;
}
}
CenterY = centeryback;
}
R_FinishSetPatchStyle ();