diff options
Diffstat (limited to 'video/out/opengl/video_shaders.c')
| -rw-r--r-- | video/out/opengl/video_shaders.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/video/out/opengl/video_shaders.c b/video/out/opengl/video_shaders.c index cbd566ff0c..995fbd2a1a 100644 --- a/video/out/opengl/video_shaders.c +++ b/video/out/opengl/video_shaders.c @@ -522,7 +522,7 @@ void pass_inverse_ootf(struct gl_shader_cache *sc, enum mp_csp_light light, floa // Tone map from a known peak brightness to the range [0,1] static void pass_tone_map(struct gl_shader_cache *sc, float ref_peak, - enum tone_mapping algo, float param) + enum tone_mapping algo, float param, float desat) { GLSLF("// HDR tone mapping\n"); @@ -530,6 +530,12 @@ static void pass_tone_map(struct gl_shader_cache *sc, float ref_peak, GLSL(float luma = dot(src_luma, color.rgb);) GLSL(float luma_orig = luma;) + // Desaturate the color using a coefficient dependent on the brightness + if (desat > 0 && ref_peak > desat) { + GLSLF("float overbright = max(0.0, (luma - %f) / luma);\n", desat); + GLSL(color.rgb = mix(color.rgb, vec3(luma), overbright);) + } + switch (algo) { case TONE_MAPPING_CLIP: GLSL(luma = clamp(luma, 0.0, 1.0);) @@ -593,7 +599,7 @@ static void pass_tone_map(struct gl_shader_cache *sc, float ref_peak, void pass_color_map(struct gl_shader_cache *sc, struct mp_colorspace src, struct mp_colorspace dst, enum tone_mapping algo, float tone_mapping_param, - bool is_linear) + float tone_mapping_desat, bool is_linear) { GLSLF("// color mapping\n"); @@ -635,8 +641,10 @@ void pass_color_map(struct gl_shader_cache *sc, // Tone map to prevent clipping when the source signal peak exceeds the // encodable range - if (src.sig_peak > dst_range) - pass_tone_map(sc, src.sig_peak / dst_range, algo, tone_mapping_param); + if (src.sig_peak > dst_range) { + pass_tone_map(sc, src.sig_peak / dst_range, algo, tone_mapping_param, + tone_mapping_desat); + } // Adapt to the right colorspace if necessary if (src.primaries != dst.primaries) { |