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e16249b672
* define MxLong/MxULong The "long" type has different sizes on different platforms, and this may cause issues. * use DWORD to match RegQueryValueExA arg
73 lines
1.1 KiB
C++
73 lines
1.1 KiB
C++
#include "legoutil.h"
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#include "mxtypes.h"
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// OFFSET: LEGO1 0x1003eae0
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void ConvertHSVToRGB(float h, float s, float v, float *r_out, float *b_out, float *g_out)
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{
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double calc;
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double p;
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MxLong hue_index;
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double v9;
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double v12;
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double v13;
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double s_dbl = s;
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if (s > 0.5f)
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calc = (1.0f - v) * s + v;
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else
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calc = (v + 1.0) * s_dbl;
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if (calc <= 0.0)
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{
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*g_out = 0.0f;
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*b_out = 0.0f;
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*r_out = 0.0f;
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return;
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}
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p = s * 2.0f - calc;
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hue_index = h * 6.0;
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v9 = (h * 6.0 - (float)hue_index) * ((calc - p) / calc) * calc;
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v12 = p + v9;
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v13 = calc - v9;
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switch (hue_index)
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{
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case 0:
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*r_out = calc;
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*b_out = v12;
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*g_out = p;
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break;
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case 1:
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*r_out = v13;
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*b_out = calc;
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*g_out = p;
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break;
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case 2:
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*r_out = p;
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*b_out = calc;
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*g_out = v12;
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break;
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case 3:
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*r_out = p;
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*b_out = v13;
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*g_out = calc;
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break;
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case 4:
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*r_out = v12;
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*b_out = p;
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*g_out = calc;
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break;
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case 5:
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*r_out = calc;
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*b_out = p;
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*g_out = v13;
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break;
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case 6:
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*r_out = calc;
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*b_out = p;
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*g_out = v13;
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break;
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default:
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return;
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}
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}
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