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tests/color_util: streamline sRGB_linearize/delinearize 

Re-use color_float_apply_curve() instead of open-coding it.

Maybe makes reading the code a little easier.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This commit is contained in:
Pekka Paalanen 2022-05-10 11:34:57 +03:00 committed by Pekka Paalanen
parent 53b1268018
commit 8adbd3d802
1 changed files with 12 additions and 18 deletions
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30
tests/color_util.c
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@ -161,15 +161,6 @@ Power2_4_EOTF_inv(float o)
return pow(o, 1./2.4);
}
void
sRGB_linearize(struct color_float *cf)
{
int i;
for (i = 0; i < COLOR_CHAN_NUM; i++)
cf->rgb[i] = sRGB_EOTF(cf->rgb[i]);
}
static float
apply_tone_curve(enum transfer_fn fn, float r)
{
@ -199,15 +190,6 @@ apply_tone_curve(enum transfer_fn fn, float r)
return ret;
}
void
sRGB_delinearize(struct color_float *cf)
{
int i;
for (i = 0; i < COLOR_CHAN_NUM; i++)
cf->rgb[i] = sRGB_EOTF_inv(cf->rgb[i]);
}
struct color_float
a8r8g8b8_to_float(uint32_t v)
{
@ -232,6 +214,18 @@ color_float_apply_curve(enum transfer_fn fn, struct color_float c)
return c;
}
void
sRGB_linearize(struct color_float *cf)
{
*cf = color_float_apply_curve(TRANSFER_FN_SRGB_EOTF, *cf);
}
void
sRGB_delinearize(struct color_float *cf)
{
*cf = color_float_apply_curve(TRANSFER_FN_SRGB_EOTF_INVERSE, *cf);
}
/*
* Returns the result of the matrix-vector multiplication mat * c.
*/