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d2d1/tests: Introduce compare_uint(). 

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Henri Verbeet 2020-03-30 20:30:13 +04:30 committed by Alexandre Julliard
parent c635f95518
commit 1cb9a31bdf
1 changed files with 11 additions and 12 deletions
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23
dlls/d2d1/tests/d2d1.c
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@ -346,20 +346,19 @@ static DWORD get_readback_colour(struct resource_readback *rb, unsigned int x, u
return ((DWORD *)((BYTE *)rb->map_desc.pData + y * rb->map_desc.RowPitch))[x];
}
static BOOL compare_uint(unsigned int x, unsigned int y, unsigned int max_diff)
{
unsigned int diff = x > y ? x - y : y - x;
return diff <= max_diff;
}
static BOOL compare_colour(DWORD c1, DWORD c2, BYTE max_diff)
{
if (abs((c1 & 0xff) - (c2 & 0xff)) > max_diff)
return FALSE;
c1 >>= 8; c2 >>= 8;
if (abs((c1 & 0xff) - (c2 & 0xff)) > max_diff)
return FALSE;
c1 >>= 8; c2 >>= 8;
if (abs((c1 & 0xff) - (c2 & 0xff)) > max_diff)
return FALSE;
c1 >>= 8; c2 >>= 8;
if (abs((c1 & 0xff) - (c2 & 0xff)) > max_diff)
return FALSE;
return TRUE;
return compare_uint(c1 & 0xff, c2 & 0xff, max_diff)
&& compare_uint((c1 >> 8) & 0xff, (c2 >> 8) & 0xff, max_diff)
&& compare_uint((c1 >> 16) & 0xff, (c2 >> 16) & 0xff, max_diff)
&& compare_uint((c1 >> 24) & 0xff, (c2 >> 24) & 0xff, max_diff);
}
static BOOL compare_float(float f, float g, unsigned int ulps)