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vo_opengl: minor cleanup of gamma-related functions

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This commit is contained in:
Niklas Haas 2015-03-30 15:17:29 +02:00
parent 27d57af450
commit b51ff8702b
1 changed files with 4 additions and 5 deletions

9
video/out/gl_video.c
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@ -1475,7 +1475,7 @@ static void get_scale_factors(struct gl_video *p, double xy[2])
(double)(p->src_rect.y1 - p->src_rect.y0);
}
// Linearize, given a TRC as input
// Linearize (expand), given a TRC as input
static void pass_linearize(struct gl_video *p, enum mp_csp_trc trc)
{
if (trc == MP_CSP_TRC_LINEAR)
@ -1487,7 +1487,7 @@ static void pass_linearize(struct gl_video *p, enum mp_csp_trc trc)
GLSL(color.rgb = mix(color.rgb / vec3(12.92),
pow((color.rgb + vec3(0.055))/vec3(1.055),
vec3(2.4)),
lessThanEqual(vec3(0.04045), color.rgb));)
lessThan(vec3(0.04045), color.rgb));)
break;
case MP_CSP_TRC_BT_1886:
GLSL(color.rgb = pow(color.rgb, vec3(1.961));)
@ -1498,7 +1498,7 @@ static void pass_linearize(struct gl_video *p, enum mp_csp_trc trc)
}
}
// Delinearize, given a TRC as output
// Delinearize (compress), given a TRC as output
static void pass_delinearize(struct gl_video *p, enum mp_csp_trc trc)
{
if (trc == MP_CSP_TRC_LINEAR)
@ -1508,8 +1508,7 @@ static void pass_delinearize(struct gl_video *p, enum mp_csp_trc trc)
switch (trc) {
case MP_CSP_TRC_SRGB:
GLSL(color.rgb = mix(color.rgb * vec3(12.92),
vec3(1.055) * pow(color.rgb,
vec3(1.0/2.4))
vec3(1.055) * pow(color.rgb, vec3(1.0/2.4))
- vec3(0.055),
lessThanEqual(vec3(0.0031308), color.rgb));)
break;