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mpv/video/out/opengl/lcms.h

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vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
#ifndef MP_GL_LCMS_H
#define MP_GL_LCMS_H
vo_opengl: add support for in memory icc profiles Previously we just forced loading a profile from file, but that has poor integration for querying the OS / display server for an ICC profile, and generating profiles on the fly (which we might use in the future for creating preset 3dluts). Also changed the previous icc-profile-auto code to use this mechanism, and moved gl_lcms to be an opaque type with state instead of just providing pure functions.
2015-01-07 17:47:27 +00:00
#include <stddef.h>
vo_opengl, cocoa: allow to autoselect a color profile This commit adds support for automatic selection of color profiles based on the display where mpv is initialized, and automatically changes the color profile when display is changed or the profile itself is changed from System Preferences. @UliZappe was responsible with the testing and implementation of a lot of this commit, including the original implementation of `cocoa_get_icc_profile_path` (See #594). Fixes #594
2014-02-24 23:04:30 +00:00
#include <stdbool.h>
vo_opengl: add support for in memory icc profiles Previously we just forced loading a profile from file, but that has poor integration for querying the OS / display server for an ICC profile, and generating profiles on the fly (which we might use in the future for creating preset 3dluts). Also changed the previous icc-profile-auto code to use this mechanism, and moved gl_lcms to be an opaque type with state instead of just providing pure functions.
2015-01-07 17:47:27 +00:00
#include "misc/bstr.h"
vo_opengl: support embedded ICC profiles This currently only works when using lcms-based color management (--icc-profile-*). In principle, we could also support using lcms even when the user has not specified an ICC profile, by generating the profile against a fixed reference (--target-prim/--target-trc) instead. I still might do that some day, simply because 3dlut provides a higher quality conversion than our simple gamut mapping does for stuff like BT.2020, and also because it's now needed to enable embedded ICC profiles. But that would be a separate change, so preserve the status quo for now. (Besides, my opinion is still that you should be using an ICC profile if you care about colors being accurate _at all_)
2017-07-25 21:17:04 +00:00
#include <libavutil/buffer.h>
vo_opengl, cocoa: allow to autoselect a color profile This commit adds support for automatic selection of color profiles based on the display where mpv is initialized, and automatically changes the color profile when display is changed or the profile itself is changed from System Preferences. @UliZappe was responsible with the testing and implementation of a lot of this commit, including the original implementation of `cocoa_get_icc_profile_path` (See #594). Fixes #594
2014-02-24 23:04:30 +00:00
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
extern const struct m_sub_options mp_icc_conf;
struct mp_icc_opts {
vo_opengl: support embedded ICC profiles This currently only works when using lcms-based color management (--icc-profile-*). In principle, we could also support using lcms even when the user has not specified an ICC profile, by generating the profile against a fixed reference (--target-prim/--target-trc) instead. I still might do that some day, simply because 3dlut provides a higher quality conversion than our simple gamut mapping does for stuff like BT.2020, and also because it's now needed to enable embedded ICC profiles. But that would be a separate change, so preserve the status quo for now. (Besides, my opinion is still that you should be using an ICC profile if you care about colors being accurate _at all_)
2017-07-25 21:17:04 +00:00
int use_embedded;
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
char *profile;
vo_opengl, cocoa: allow to autoselect a color profile This commit adds support for automatic selection of color profiles based on the display where mpv is initialized, and automatically changes the color profile when display is changed or the profile itself is changed from System Preferences. @UliZappe was responsible with the testing and implementation of a lot of this commit, including the original implementation of `cocoa_get_icc_profile_path` (See #594). Fixes #594
2014-02-24 23:04:30 +00:00
int profile_auto;
vo_opengl: gl_lcms: replace icc-cache by icc-cache-dir This now stores caches for multiple ICC profiles, potentially all the user has ever used. The big use case for this is for users with multiple monitors. The old logic would mandate recomputing the LUT and discarding the cache whenever dragging mpv from one screen to another. This also avoids having to save and check the ICC profile itself, since the file name already uniquely determines it.
2015-04-29 16:09:22 +00:00
char *cache_dir;
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
char *size_str;
int intent;
lcms: improve black point handling (especially BT.1886) 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.
2016-05-03 19:58:03 +00:00
int contrast;
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
};
vo_opengl: move struct lut3d definition This was dumb. Also, lcms.h has actually no need to include video.h besides this and csputils.h (makes it slightly less entangled).
2016-06-03 18:06:29 +00:00
struct lut3d {
uint16_t *data;
int size[3];
};
gl_lcms: mp_msg conversion Have to deal with some dumb stuff in LittleCMS2's API: its error handler is global.
2013-09-11 23:28:14 +00:00
struct mp_log;
video/out: pass along global context Will be needed for other parts (especially in gl_lcms.c).
2013-12-21 16:51:20 +00:00
struct mpv_global;
vo_opengl: add support for in memory icc profiles Previously we just forced loading a profile from file, but that has poor integration for querying the OS / display server for an ICC profile, and generating profiles on the fly (which we might use in the future for creating preset 3dluts). Also changed the previous icc-profile-auto code to use this mechanism, and moved gl_lcms to be an opaque type with state instead of just providing pure functions.
2015-01-07 17:47:27 +00:00
struct gl_lcms;
struct gl_lcms *gl_lcms_init(void *talloc_ctx, struct mp_log *log,
vo_opengl: simplify option handling Instead of copying the options around... just don't. video.c now has full control over when options are updated. (It still gets notified from outside, but it decides when the updated options are copied: when m_config_cache_update() is called.) So there's no need for tricky stuff, and it can be simplified a bit. Also change lcms.c. We could do it like video.c, and get the options from the global config store. But it seems simpler to just provide a pointer to an option struct, which is arbitrarily mutated from the outside (from the perspective of lcms.c).
2016-09-06 09:11:36 +00:00
struct mpv_global *global,
struct mp_icc_opts *opts);
void gl_lcms_update_options(struct gl_lcms *p);
vo_opengl: cleanup icc + runtime option changing behavior 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.
2016-06-04 15:52:10 +00:00
bool gl_lcms_set_memory_profile(struct gl_lcms *p, bstr profile);
bool gl_lcms_has_profile(struct gl_lcms *p);
vo_opengl: generate 3DLUT against source and use full BT.1886 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.
2016-02-13 14:33:00 +00:00
bool gl_lcms_get_lut3d(struct gl_lcms *p, struct lut3d **,
vo_opengl: support embedded ICC profiles This currently only works when using lcms-based color management (--icc-profile-*). In principle, we could also support using lcms even when the user has not specified an ICC profile, by generating the profile against a fixed reference (--target-prim/--target-trc) instead. I still might do that some day, simply because 3dlut provides a higher quality conversion than our simple gamut mapping does for stuff like BT.2020, and also because it's now needed to enable embedded ICC profiles. But that would be a separate change, so preserve the status quo for now. (Besides, my opinion is still that you should be using an ICC profile if you care about colors being accurate _at all_)
2017-07-25 21:17:04 +00:00
enum mp_csp_prim prim, enum mp_csp_trc trc,
struct AVBufferRef *vid_profile);
vo_opengl: generate 3DLUT against source and use full BT.1886 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.
2016-02-13 14:33:00 +00:00
bool gl_lcms_has_changed(struct gl_lcms *p, enum mp_csp_prim prim,
vo_opengl: support embedded ICC profiles This currently only works when using lcms-based color management (--icc-profile-*). In principle, we could also support using lcms even when the user has not specified an ICC profile, by generating the profile against a fixed reference (--target-prim/--target-trc) instead. I still might do that some day, simply because 3dlut provides a higher quality conversion than our simple gamut mapping does for stuff like BT.2020, and also because it's now needed to enable embedded ICC profiles. But that would be a separate change, so preserve the status quo for now. (Besides, my opinion is still that you should be using an ICC profile if you care about colors being accurate _at all_)
2017-07-25 21:17:04 +00:00
enum mp_csp_trc trc, struct AVBufferRef *vid_profile);
vo_opengl: split into multiple files, convert to new option API gl_video.c contains all rendering code, gl_lcms.c the .icc loader and creation of 3D LUT (and all LittleCMS specific code). vo_opengl.c is reduced to interfacing between the various parts.
2013-03-01 20:19:20 +00:00
#endif