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https://github.com/mpv-player/mpv
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9dc4154fec
@ -619,21 +619,22 @@ void mp_get_cms_matrix(struct mp_csp_primaries src, struct mp_csp_primaries dest
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mp_mul_matrix3x3(m, tmp);
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}
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// get the coefficients of an SMPTE 428-1 xyz -> rgb conversion matrix
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// get the coefficients of an ST 428-1 xyz -> rgb conversion matrix
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// intent = the rendering intent used to convert to the target primaries
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static void mp_get_xyz2rgb_coeffs(struct mp_csp_params *params,
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enum mp_render_intent intent, struct mp_cmat *m)
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{
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struct mp_csp_primaries prim = mp_get_csp_primaries(params->color.primaries);
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// Convert to DCI-P3
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struct mp_csp_primaries prim = mp_get_csp_primaries(MP_CSP_PRIM_DCI_P3);
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float brightness = params->brightness;
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mp_get_rgb2xyz_matrix(prim, m->m);
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mp_invert_matrix3x3(m->m);
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// All non-absolute mappings want to map source white to target white
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if (intent != MP_INTENT_ABSOLUTE_COLORIMETRIC) {
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// SMPTE 428-1 defines the calibration white point as CIE xy (0.314, 0.351)
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static const struct mp_csp_col_xy smpte428 = {0.314, 0.351};
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mp_apply_chromatic_adaptation(smpte428, prim.white, m->m);
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// SMPTE EG 432-1 Annex H defines the white point as equal energy
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static const struct mp_csp_col_xy smpte432 = {1.0/3.0, 1.0/3.0};
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mp_apply_chromatic_adaptation(smpte432, prim.white, m->m);
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}
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// Since this outputs linear RGB rather than companded RGB, we
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@ -2333,7 +2333,7 @@ static void pass_convert_yuv(struct gl_video *p)
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// Pre-colormatrix input gamma correction
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if (cparams.color.space == MP_CSP_XYZ)
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GLSL(color.rgb = pow(color.rgb, vec3(2.6));) // linear light
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pass_linearize(p->sc, p->image_params.color.gamma);
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// We always explicitly normalize the range in pass_read_video
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cparams.input_bits = cparams.texture_bits = 0;
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@ -2347,6 +2347,13 @@ static void pass_convert_yuv(struct gl_video *p)
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GLSL(color.rgb = mat3(colormatrix) * color.rgb + colormatrix_c;)
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if (cparams.color.space == MP_CSP_XYZ) {
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pass_delinearize(p->sc, p->image_params.color.gamma);
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// mp_get_csp_matrix implicitly converts XYZ to DCI-P3
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p->image_params.color.space = MP_CSP_RGB;
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p->image_params.color.primaries = MP_CSP_PRIM_DCI_P3;
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}
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if (p->image_params.color.space == MP_CSP_BT_2020_C) {
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// Conversion for C'rcY'cC'bc via the BT.2020 CL system:
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// C'bc = (B'-Y'c) / 1.9404 | C'bc <= 0
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