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make PR compile in MSVC6

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This commit is contained in:
Sean Barrett 2020-07-13 02:49:46 -07:00
parent cae8e852f6
commit 1c816743b6
1 changed files with 21 additions and 16 deletions
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13
stb_dxt.h
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@ -427,15 +427,20 @@ static const float midpoints6[64] = {
0.772549f, 0.788235f, 0.803922f, 0.819608f, 0.835294f, 0.850980f, 0.866667f, 0.882353f, 0.898039f, 0.913725f, 0.929412f, 0.945098f, 0.960784f, 0.976471f, 0.992157f, 1.0f
};
static unsigned short stb__Quantize5(float x) {
static unsigned short stb__Quantize5(float x)
{
unsigned short q;
x = x < 0 ? 0 : x > 1 ? 1 : x; // saturate
unsigned short q = (unsigned short)(x * 31);
q = (unsigned short)(x * 31);
q += (x > midpoints5[q]);
return q;
}
static unsigned short stb__Quantize6(float x) {
static unsigned short stb__Quantize6(float x)
{
unsigned short q;
x = x < 0 ? 0 : x > 1 ? 1 : x; // saturate
unsigned short q = (unsigned short)(x * 63);
q = (unsigned short)(x * 63);
q += (x > midpoints6[q]);
return q;
}