From 3d771b7f7e20fde3d3789ea59820e9e9a8a23fe8 Mon Sep 17 00:00:00 2001 From: Debarshi Ray Date: Tue, 7 Nov 2017 10:38:12 +0100 Subject: [PATCH] CIE: Make the Lab to RGB fast paths as accurate as the reference This is similar to commit e17807f235557d5d. https://bugzilla.gnome.org/show_bug.cgi?id=790011 --- extensions/CIE.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/extensions/CIE.c b/extensions/CIE.c index f138d10..35ddb0d 100644 --- a/extensions/CIE.c +++ b/extensions/CIE.c @@ -767,9 +767,9 @@ Labf_to_rgbf (const Babl *conversion,float *src, float xr = cubef (fx) > LAB_EPSILON ? cubef (fx) : (fx * 116.0f - 16.0f) / LAB_KAPPA; float zr = cubef (fz) > LAB_EPSILON ? cubef (fz) : (fz * 116.0f - 16.0f) / LAB_KAPPA; - float r = 3.134274799724f * D50_WHITE_REF_X * xr -1.617275708956f * D50_WHITE_REF_Y * yr -0.490724283042f * D50_WHITE_REF_Z * zr; - float g = -0.978795575994f * D50_WHITE_REF_X * xr +1.916161689117f * D50_WHITE_REF_Y * yr +0.033453331711f * D50_WHITE_REF_Z * zr; - float b = 0.071976988401f * D50_WHITE_REF_X * xr -0.228984974402f * D50_WHITE_REF_Y * yr +1.405718224383f * D50_WHITE_REF_Z * zr; + float r = 3.134218931198f * D50_WHITE_REF_X * xr -1.617237925529f * D50_WHITE_REF_Y * yr -0.490704864264f * D50_WHITE_REF_Z * zr; + float g = -0.978840410709f * D50_WHITE_REF_X * xr +1.916181206703f * D50_WHITE_REF_Y * yr +0.033482126892f * D50_WHITE_REF_Z * zr; + float b = 0.071941196918f * D50_WHITE_REF_X * xr -0.229004547000f * D50_WHITE_REF_Y * yr +1.405783772469f * D50_WHITE_REF_Z * zr; dst[0] = r; dst[1] = g; @@ -802,9 +802,9 @@ Labaf_to_rgbaf (const Babl *conversion,float *src, float xr = cubef (fx) > LAB_EPSILON ? cubef (fx) : (fx * 116.0f - 16.0f) / LAB_KAPPA; float zr = cubef (fz) > LAB_EPSILON ? cubef (fz) : (fz * 116.0f - 16.0f) / LAB_KAPPA; - float r = 3.134274799724f * D50_WHITE_REF_X * xr -1.617275708956f * D50_WHITE_REF_Y * yr -0.490724283042f * D50_WHITE_REF_Z * zr; - float g = -0.978795575994f * D50_WHITE_REF_X * xr +1.916161689117f * D50_WHITE_REF_Y * yr +0.033453331711f * D50_WHITE_REF_Z * zr; - float b = 0.071976988401f * D50_WHITE_REF_X * xr -0.228984974402f * D50_WHITE_REF_Y * yr +1.405718224383f * D50_WHITE_REF_Z * zr; + float r = 3.134218931198f * D50_WHITE_REF_X * xr -1.617237925529f * D50_WHITE_REF_Y * yr -0.490704864264f * D50_WHITE_REF_Z * zr; + float g = -0.978840410709f * D50_WHITE_REF_X * xr +1.916181206703f * D50_WHITE_REF_Y * yr +0.033482126892f * D50_WHITE_REF_Z * zr; + float b = 0.071941196918f * D50_WHITE_REF_X * xr -0.229004547000f * D50_WHITE_REF_Y * yr +1.405783772469f * D50_WHITE_REF_Z * zr; dst[0] = r; dst[1] = g; -- 2.30.2