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Provide function FastPrecisePowf 

Provide function FastPrecisePowf
This commit is contained in:
Theo Arends 2019-05-18 16:54:29 +02:00
parent be7ea38204
commit 5515a97be6
3 changed files with 7 additions and 15 deletions
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6
sonoff/support.ino
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@ -674,6 +674,12 @@ double FastPrecisePow(double a, double b)
return r * u.d;
}
float FastPrecisePowf(const float x, const float y)
{
// return (float)(pow((double)x, (double)y));
return (float)FastPrecisePow(x, y);
}
uint32_t SqrtInt(uint32_t num)
{
if (num <= 1) {

4
sonoff/xdrv_04_light.ino
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@ -718,10 +718,6 @@ void LightStateClass::HsToRgb(uint16_t hue, uint8_t sat, uint8_t *r_r, uint8_t *
#define POW FastPrecisePowf
float FastPrecisePowf(float a, float b) {
return (float) FastPrecisePow(a,b);
}
void LightStateClass::RgbToXy(uint8_t i_r, uint8_t i_g, uint8_t i_b, float *r_x, float *r_y) {
float x = 0.31271f; // default medium white
float y = 0.32902f;

12
sonoff/xsns_27_apds9960.ino
View File

@ -374,21 +374,11 @@ void calculateColorTemperature(void)
n = (xc - 0.3320F) / (0.1858F - yc);
/* Calculate the final CCT */
color_data.cct = (449.0F * powf(n, 3)) + (3525.0F * powf(n, 2)) + (6823.3F * n) + 5520.33F;
color_data.cct = (449.0F * FastPrecisePowf(n, 3)) + (3525.0F * FastPrecisePowf(n, 2)) + (6823.3F * n) + 5520.33F;
return;
}
/**
* Taken from the Adafruit-Library
* @brief Implements missing powf function
*/
float powf(const float x, const float y)
{
return (float)(pow((double)x, (double)y));
}
/*******************************************************************************
* Getters and setters for register values
******************************************************************************/