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[common] rects: de-dup code and don't needlessly copy rect over itself

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This commit is contained in:
Geoffrey McRae 2021-10-24 22:19:28 +11:00
parent f69b869282
commit 2f0b97a487
1 changed files with 17 additions and 12 deletions
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29
common/src/rects.c
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@ -58,6 +58,21 @@ inline static bool rectContains(const FrameDamageRect * r1,
r2->y + r2->height > r1->y + r1->height);
}
inline static int removeRects(FrameDamageRect * rects, int count,
bool removed[])
{
int o = 0;
for (int i = 0; i < count; ++i)
{
if (removed[i] || i == o++)
continue;
rects[o-1] = rects[i];
}
return 0;
}
static int cornerCompare(const void * a_, const void * b_)
{
const struct Corner * a = a_;
@ -260,12 +275,7 @@ int rectsMergeOverlapping(FrameDamageRect * rects, int count)
}
while (changed);
int o = 0;
for (int i = 0; i < count; ++i)
if (!removed[i])
rects[o++] = rects[i];
return o;
return removeRects(rects, count, removed);
}
int rectsRejectContained(FrameDamageRect * rects, int count)
@ -287,10 +297,5 @@ int rectsRejectContained(FrameDamageRect * rects, int count)
}
}
int o = 0;
for (int i = 0; i < count; ++i)
if (!removed[i])
rects[o++] = rects[i];
return o;
return removeRects(rects, count, removed);
}