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tests: Use compare_uint() in compare_float().

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Comparing the result of abs() is broken in the case that x - y == INT_MIN.
This commit is contained in:
Zebediah Figura 2023-06-23 15:36:26 -05:00 committed by Alexandre Julliard
parent bdfec4886d
commit 69ecfdfb0b
Notes: Alexandre Julliard 2023-06-27 23:35:17 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Francisco Casas (@fcasas)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/247
2 changed files with 8 additions and 11 deletions
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7
tests/d3d12_test_utils.h
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@ -74,13 +74,6 @@ static void set_viewport(D3D12_VIEWPORT *vp, float x, float y,
vp->MaxDepth = max_depth;
}
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_color(DWORD c1, DWORD c2, BYTE max_diff)
{
return compare_uint(c1 & 0xff, c2 & 0xff, max_diff)

12
tests/utils.h
View File

@ -82,6 +82,13 @@ static inline bool vkd3d_array_reserve(void **elements, size_t *capacity, size_t
return true;
}
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_float(float f, float g, unsigned int ulps)
{
int x, y;
@ -101,10 +108,7 @@ static bool compare_float(float f, float g, unsigned int ulps)
if (y < 0)
y = INT_MIN - y;
if (abs(x - y) > ulps)
return false;
return true;
return compare_uint(x, y, ulps);
}
static inline bool compare_uvec4(const struct uvec4 *v1, const struct uvec4 *v2)