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Revert level changes and switch to wide rgb d50 for xy

main
Martin Böh 2022-04-08 01:25:35 +02:00
parent 851a2a3de1
commit 754160c7b6
1 changed files with 7 additions and 12 deletions
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19
sampleLightCtrl.c
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@ -35,7 +35,7 @@
/**********************************************************************
* LOCAL CONSTANTS
*/
#define PWM_FREQUENCY 480 // 480 hz
#define PWM_FREQUENCY 4800 // 4.8khz
#define PWM_FULL_DUTYCYCLE 100
#define PMW_MAX_TICK (PWM_CLOCK_SOURCE / PWM_FREQUENCY)
@ -199,8 +199,6 @@ void hwLight_colorUpdate_colorTemperature(u16 colorTemperatureMireds, u8 level)
u8 C = 0;
u8 W = 0;
level = getZBLightLevelPercentage(level) * ZCL_LEVEL_ATTR_MAX_LEVEL;
temperatureToCW(colorTemperatureMireds, level, &C, &W);
u16 gammaCorrectC = ((u16)C * C) / ZCL_LEVEL_ATTR_MAX_LEVEL;
@ -235,7 +233,7 @@ void hsvToRGB(u16 hue, u8 saturation, u8 level, u8 *R, u8 *G, u8 *B, bool enhanc
u16 rHue = (u32)hue * 360 / (enhanced ? ZCL_COLOR_ATTR_ENHANCED_HUE_MAX : ZCL_COLOR_ATTR_HUE_MAX);
u8 rS = saturation;
u8 rV = getZBLightLevelPercentage(level) * 255;
u8 rV = level;
if (saturation == 0)
{
@ -316,9 +314,6 @@ void hwLight_colorUpdate_HSV2RGB(u16 hue, u8 saturation, u8 level, bool enhanced
u8 G = 0;
u8 B = 0;
// No idea why this is here, lets see what happens with a more minimal value
level = (level < 0x01) ? 0x01 : level;
hsvToRGB(hue, saturation, level, &R, &G, &B, enhanced);
hwLight_colorUpdate_RGB(R, G, B);
@ -359,14 +354,14 @@ void hwLight_colorUpdate_XY2RGB(u16 xI, u16 yI, u8 level)
// This does not locate the closest point in the gamma spectrum of the lamps. possible #todo
const float z = 1.f - x - y;
float Y = yI == 0 ? 0.0f : getZBLightLevelPercentage(level); // This is luminance, but used as brightness
float Y = level / (float)ZCL_LEVEL_ATTR_MAX_LEVEL;
float X = yI == 0 ? 0.0f : (x * Y) / y;
float Z = yI == 0 ? 0.0f : (z * Y) / y;
// SRGB http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
float r = max2(X * 3.2404542f + Y * -1.5371385f + Z * -0.4985314f,0);
float g = max2(X * -0.9692660f + Y * 1.8760108f + Z * 0.0415560f,0);
float b = max2(X * 0.0556434f + Y * -0.2040259f + Z * 1.0572252f,0);
// Wide Gamut RGB D50 http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
float r = max2(X * 1.4628067f + Y * -0.1840623f + Z * -0.2743606f,0);
float g = max2(X * -0.5217933f + Y * 1.4472381f + Z * 0.0677227f,0);
float b = max2(X * 0.0349342f + Y * -0.0968930f + Z * 1.2884099f,0);
// Apply LINEAR => SRGB Gamma correction
r = LINEAR_TO_SRGB_GAMMA_CORRECTION(r);