diff options
Diffstat (limited to 'video/out/opengl/video_shaders.c')
| -rw-r--r-- | video/out/opengl/video_shaders.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/video/out/opengl/video_shaders.c b/video/out/opengl/video_shaders.c index 63a4713a34..d2623738d7 100644 --- a/video/out/opengl/video_shaders.c +++ b/video/out/opengl/video_shaders.c @@ -238,7 +238,10 @@ static const float VLOG_B = 0.00873, // Common constants for Sony S-Log static const float SLOG_A = 0.432699, SLOG_B = 0.037584, - SLOG_C = 0.616596 + 0.03; + SLOG_C = 0.616596 + 0.03, + SLOG_P = 3.538813, + SLOG_Q = 0.030001, + SLOG_K2 = 155.0 / 219.0; // Linearize (expand), given a TRC as input. In essence, this is the ITU-R // EOTF, calculated on an idealized (reference) monitor with a white point of @@ -308,6 +311,13 @@ void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc) " - vec3(%f);\n", SLOG_C, SLOG_A, SLOG_B); break; + case MP_CSP_TRC_S_LOG2: + GLSLF("color.rgb = mix((color.rgb - vec3(%f)) / vec3(%f), \n" + " (pow(vec3(10.0), (color.rgb - vec3(%f)) / vec3(%f)) \n" + " - vec3(%f)) / vec3(%f), \n" + " lessThanEqual(vec3(%f), color.rgb)); \n", + SLOG_Q, SLOG_P, SLOG_C, SLOG_A, SLOG_B, SLOG_K2, SLOG_Q); + break; default: abort(); } @@ -377,6 +387,13 @@ void pass_delinearize(struct gl_shader_cache *sc, enum mp_csp_trc trc) GLSLF("color.rgb = vec3(%f) * log(color.rgb + vec3(%f)) + vec3(%f);\n", SLOG_A / M_LN10, SLOG_B, SLOG_C); break; + case MP_CSP_TRC_S_LOG2: + GLSLF("color.rgb = mix(vec3(%f) * color.rgb + vec3(%f), \n" + " vec3(%f) * log(vec3(%f) * color.rgb + vec3(%f)) \n" + " + vec3(%f), \n" + " lessThanEqual(vec3(0.0), color.rgb)); \n", + SLOG_P, SLOG_Q, SLOG_A / M_LN10, SLOG_K2, SLOG_B, SLOG_C); + break; default: abort(); } |