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cellGem: implement cellGemHSVtoRGB

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This commit is contained in:
Megamouse 2021-08-04 22:53:07 +02:00
parent 9f67e00e40
commit 0b88d5f077
1 changed files with 45 additions and 2 deletions
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47
rpcs3/Emu/Cell/Modules/cellGem.cpp
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@ -9,6 +9,8 @@
#include "Emu/IdManager.h"
#include "Input/pad_thread.h"
#include <cmath> // for fmod
LOG_CHANNEL(cellGem);
template <>
@ -1072,7 +1074,7 @@ error_code cellGemGetTrackerHue(u32 gem_num, vm::ptr<u32> hue)
error_code cellGemHSVtoRGB(f32 h, f32 s, f32 v, vm::ptr<f32> r, vm::ptr<f32> g, vm::ptr<f32> b)
{
cellGem.todo("cellGemHSVtoRGB(h=%f, s=%f, v=%f, r=*0x%x, g=*0x%x, b=*0x%x)", h, s, v, r, g, b);
cellGem.warning("cellGemHSVtoRGB(h=%f, s=%f, v=%f, r=*0x%x, g=*0x%x, b=*0x%x)", h, s, v, r, g, b);
if (s < 0.0f || s > 1.0f || v < 0.0f || v > 1.0f || !r || !g || !b)
{
@ -1081,7 +1083,48 @@ error_code cellGemHSVtoRGB(f32 h, f32 s, f32 v, vm::ptr<f32> r, vm::ptr<f32> g,
h = std::clamp(h, 0.0f, 360.0f);
// TODO: convert
const f32 c = v * s;
const f32 x = c * (1.0f - abs(fmod(h / 60.0f, 2.0f) - 1.0f));
const f32 m = v - c;
f32 r_tmp{0.0};
f32 g_tmp{0.0};
f32 b_tmp{0.0};
if (h < 60.0f)
{
r_tmp = c;
g_tmp = x;
}
else if (h < 120.0f)
{
r_tmp = x;
g_tmp = c;
}
else if (h < 180.0f)
{
g_tmp = c;
b_tmp = x;
}
else if (h < 240.0f)
{
g_tmp = x;
b_tmp = c;
}
else if (h < 300.0f)
{
r_tmp = x;
b_tmp = c;
}
else
{
r_tmp = c;
b_tmp = x;
}
*r = (r_tmp + m) * 255.0f;
*g = (g_tmp + m) * 255.0f;
*b = (b_tmp + m) * 255.0f;
return CELL_OK;
}