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vo_gpu: fix extreme clipping with --gamut-clipping for HDR outputs
Checking against 1.0 is wrong for this code, because it's in an absolute luminance scale relative to reference white. We should be normalizing this by `dst.sig_peak`.
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@ -888,7 +888,8 @@ void pass_color_map(struct gl_shader_cache *sc, bool is_linear,
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float coeff = cmin / (cmin - luma);
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float coeff = cmin / (cmin - luma);
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color.rgb = mix(color.rgb, vec3(luma), coeff);
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color.rgb = mix(color.rgb, vec3(luma), coeff);
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})
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})
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GLSL(float cmax = max(max(color.r, color.g), color.b);)
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GLSLF("float cmax = 1.0/%f * max(max(color.r, color.g), color.b);\n",
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dst.sig_peak);
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GLSL(if (cmax > 1.0) color.rgb /= cmax;)
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GLSL(if (cmax > 1.0) color.rgb /= cmax;)
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}
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}
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}
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}
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