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Add display_gamma option for client

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This commit is contained in:
Craig Robbins 2014-12-14 21:28:08 +10:00
parent 2414580754
commit 3d29be24e0
7 changed files with 108 additions and 42 deletions
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30
src/light.h
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@ -63,7 +63,21 @@ inline u8 undiminish_light(u8 light)
return light + 1;
}
extern u8 light_decode_table[LIGHT_MAX+1];
#ifndef SERVER
/**
* \internal
*
* \warning DO NOT USE this directly; it is here simply so that decode_light()
* can be inlined.
*
* Array size is #LIGHTMAX+1
*
* The array is a lookup table to convert the internal representation of light
* (brightness) to the display brightness.
*
*/
extern const u8 *light_decode_table;
// 0 <= light <= LIGHT_SUN
// 0 <= return value <= 255
@ -93,6 +107,10 @@ inline float decode_light_f(float light_f)
return f * v2 + (1.0 - f) * v1;
}
void set_light_table(float gamma);
#endif // ifndef SERVER
// 0 <= daylight_factor <= 1000
// 0 <= lightday, lightnight <= LIGHT_SUN
// 0 <= return value <= LIGHT_SUN
@ -105,15 +123,5 @@ inline u8 blend_light(u32 daylight_factor, u8 lightday, u8 lightnight)
return l;
}
// 0.0 <= daylight_factor <= 1.0
// 0 <= lightday, lightnight <= LIGHT_SUN
// 0 <= return value <= 255
inline u8 blend_light_f1(float daylight_factor, u8 lightday, u8 lightnight)
{
u8 l = ((daylight_factor * decode_light(lightday) +
(1.0-daylight_factor) * decode_light(lightnight)));
return l;
}
#endif