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legacy-imlib2
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ok - gradients now dont overflow the precision buffer as badly.. :) 

SVN revision: 1334
This commit is contained in:
Carsten Haitzler 1999-11-19 07:42:21 +00:00
parent c4c1d85c67
commit 71af6323fb
1 changed files with 6 additions and 6 deletions
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12
src/grad.c
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@ -246,27 +246,27 @@ __imlib_DrawGradient(ImlibImage *im, int x, int y, int w, int h,
len = hh * 16;
map = __imlib_MapRange(rg, len);
xx = (int)(256 * sin(((angle + 180) * 2 * 3.141592654) / 360));
yy = -(int)(256 * cos(((angle + 180) * 2 * 3.141592654) / 360));
xx = (int)(32 * sin(((angle + 180) * 2 * 3.141592654) / 360));
yy = -(int)(32 * cos(((angle + 180) * 2 * 3.141592654) / 360));
if (xx < 0)
{
for (i = 0; i < ww; i++)
hlut[i] = ((-xx * (ww - 1 - i) * len) / (ww - 1)) >> 8;
hlut[i] = (-xx * (ww - 1 - i) * len) / ((ww - 1) << 5);
}
else
{
for (i = 0; i < ww; i++)
hlut[i] = ((xx * i * len) / (ww - 1)) >> 8;
hlut[i] = (xx * i * len) / ((ww - 1) << 5);
}
if (yy < 0)
{
for (i = 0; i < hh; i++)
vlut[i] = ((-yy * (hh - 1 - i) * len) / (hh - 1)) >> 8;
vlut[i] = (-yy * (hh - 1 - i) * len) / ((hh - 1) << 5);
}
else
{
for (i = 0; i < hh; i++)
vlut[i] = ((yy * i * len) / (hh - 1)) >> 8;
vlut[i] = (yy * i * len) / ((hh - 1) << 5);
}
jump = im->w - w;
p = im->data + (y * im->w) + x;