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* vo_opengl: cleanup icc + runtime option changing behaviorwm42016-06-041-30/+57
| | | | | | | | | | | | | | Commit 026b75e7 actually enabled changing icc options at runtime (via vo_cmdline), but it didn't quite work. In particular, changing the icc- profile option just kept the old profile, because it was cached accordingly. As part of this, change gl_lcms.opts from a struct to a pointer to a struct. We properly copy it, instead of allowing possibly dangling strings, like it was done in a working but unclean way before. Also, reinit the whole rendering chain when the auto icc profile changes, just like it's done when icc options are changed.
* vo_opengl: minor simplification to gl_lcms_set_memory_profile()wm42016-06-041-9/+9
| | | | | | Passing the bstr thing as pointer makes no sense. Everywhere else bstr structs are passed by value because they're so small. Only when it's supposed to receive a return value they're not.
* vo_opengl: move all icc handling from vo_opengl.c to video.cwm42016-06-031-1/+1
| | | | | | | | | | | | | | | Originally, video.c did not access any CMS things (other than lut3d being set on it), but this has changed. In practice, almost all accesses to it have moved to video.c. vo_opengl only created it, and set the auto icc profile path. Complete the move. Some things wrt. option handling are a bit fishy. (But when is this not the case.) icc-profile-auto was not tested, but the distributed human CI will take care of it.
* vo_opengl: move struct lut3d definitionwm42016-06-031-2/+1
| | | | | This was dumb. Also, lcms.h has actually no need to include video.h besides this and csputils.h (makes it slightly less entangled).
* lcms: don't warn/error on 3dlut cache missesNiklas Haas2016-05-041-1/+1
| | | | | | | | Cache misses are a normal and expected part of the operation of a cache. It doesn't really make sense to show a user-visible warning for them. To work-around this, just skip trying to open the cache if it doesn't exist yet.
* lcms: improve black point handling (especially BT.1886)Niklas Haas2016-05-041-12/+42
| | | | | | | | | | | | | | | | | | | First of all, black point compensation is now on by default. This is really rather harmless and only improves the result (where "improvement" means "less black clipping"). Second, this adds an option to limit the ICC profile's contrast, which helps for untagged matrix profiles that are implicitly black scaled even in colorimetric intent. (Note that this relies on BPC being enabled to work properly, which is why the two changes are tied together) Third, this uses the LittleCMS built in black point estimator instead of relying on the presence of accurate A2B tables. This also checks tags and does some amounts of noise elimination. If the option is unspecified and the profile is missing black point information, print a warning instructing the user to set the option, and fall back to 1000 otherwise.
* lcms: include math.hwm42016-04-151-0/+1
| | | | Fixes #3053.
* gl_lcms: choose BT.1886 gamma per-channelNiklas Haas2016-04-011-24/+35
| | | | | | | | | This makes the black point closer (chromatically) to the white point, by ensuring channels keep their consistent brightness ratios as they go down to zero. I also raised the 3DLUT version as this changes semantics and is a separate commit from the previous one.
* vo_opengl: generate 3DLUT against source and use full BT.1886Niklas Haas2016-04-011-25/+98
| | | | | | | | | | | | | | | | | | | This commit refactors the 3DLUT loading mechanism to build the 3DLUT against the original source characteristics of the file. This allows us, among other things, to use a real BT.1886 profile for the source. This also allows us to actually use perceptual mappings. Finally, this reduces errors on standard gamut displays (where the previous 3DLUT target of BT.2020 was unreasonably wide). This also improves the overall accuracy of the 3DLUT due to eliminating rounding errors where possible, and allows for more accurate use of LUT-based ICC profiles. The current code is somewhat more ugly than necessary, because the idea was to implement this commit in a working state first, and then maybe refactor the profile loading mechanism in a later commit. Fixes #2815.
* Change GPL/LGPL dual-licensed files to LGPLwm42016-01-191-12/+7
| | | | | | | | | | | Do this to make the license situation less confusing. This change should be of no consequence, since LGPL is compatible with GPL anyway, and making it LGPL-only does not restrict the use with GPL code. Additionally, the wording implies that this is allowed, and that we can just remove the GPL part.
* mpv_talloc.h: rename from talloc.hDmitrij D. Czarkoff2016-01-111-1/+1
| | | | This change helps avoiding conflict with talloc.h from libtalloc.
* vo_opengl: remove gl_ prefixes from files in video/out/openglNiklas Haas2015-09-091-0/+344
This is a bit redundant with the name of the directory itself, and not in line with existing naming conventions.