xserver/test/tests.h
Tautvis 2d72f9e192
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xfree86: ddc: parse CTA-861-G HDR static metadata + colorimetry data blocks
Add xf86DoInterpretHDRMetadata(), which walks the EDID's CTA/CEA
extension data blocks and fills in a new struct monitor_hdr_data
(tail-appended field xf86Monitor::hdr) from the two blocks a display
uses to advertise HDR support:

 - the Colorimetry Data Block (tag 5): which extended gamuts/transfer
   spaces the display accepts (BT.2020 RGB/YCC/cYCC, opRGB, xvYCC,
   ICtCp, ...), exposed via is_CTA_CDB_*() bit-test macros.
 - the HDR Static Metadata Data Block (tag 6): supported EOTFs
   (traditional SDR/HDR gamma, SMPTE ST.2084/PQ, HLG) plus the
   desired content min/max/max-frame-average luminance, decoded with
   the CTA-861-G power-law formulas.

Covered by a new EDID unit test (test/ddc-tests.c) using real captured
EDIDs from four displays (Samsung Q800T, MSI MAG321CURV, HP 27 QD, and
a QEMU virtual display as the "no HDR block present" negative case),
asserting the parsed colorimetry/luminance values match known-good
figures for each.

This is a standalone prerequisite for HDR support, independent of any
particular rendering-pipeline design: cepelinas9000's HDR work
(https://github.com/cepelinas9000/xserver/tree/wip/x11hdrV2) needs to
know a display's HDR/colorimetry capabilities before doing anything
else, and this is useful on its own for any HDR/wide-gamut detection
regardless of how the rest of the pipeline ends up looking.

Extracted (with typo/whitespace cleanup, no logic changes) from
cepelinas9000's wip/x11hdrV2 branch, commit 159a6f484a, for standalone
review ahead of the larger HDR effort.

Note for review: struct monitor_hdr_data is added as a new field at
the tail of the public xf86Monitor struct (include/edid.h) - additive
only, no existing field shifts.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2026-08-24 13:50:42 +02:00

54 lines
1.9 KiB
C

#ifndef TESTS_H
#define TESTS_H
extern int verbose;
#define dbg(...) if (verbose) printf("DBG" __VA_ARGS__);
#define DECLARE_WRAP_FUNCTION(f_, rval_, ...) \
extern rval_ (*wrapped_ ## f_)(__VA_ARGS__) \
#define IMPLEMENT_WRAP_FUNCTION(f_, ...) \
if (wrapped_ ## f_) wrapped_ ## f_(__VA_ARGS__); \
else __real_ ## f_(__VA_ARGS__)
#define IMPLEMENT_WRAP_FUNCTION_WITH_RETURN(f_, ...) \
if (wrapped_ ## f_) return wrapped_ ## f_(__VA_ARGS__); \
else return __real_ ## f_(__VA_ARGS__)
#define WRAP_FUNCTION(f_, rval_, ...) \
rval_ (*wrapped_ ## f_)(__VA_ARGS__); \
extern rval_ __real_ ## f_(__VA_ARGS__); \
rval_ __wrap_ ## f_(__VA_ARGS__); \
rval_ __wrap_ ## f_(__VA_ARGS__)
typedef void (*testfunc_t)(void);
const testfunc_t* fixes_test(void);
const testfunc_t* hashtabletest_test(void);
const testfunc_t* input_test(void);
const testfunc_t* list_test(void);
const testfunc_t* list_zeroinit_test(void);
const testfunc_t* misc_test(void);
const testfunc_t* sha1_test(void);
const testfunc_t* signal_logging_test(void);
const testfunc_t* string_test(void);
const testfunc_t* touch_test(void);
const testfunc_t* xfree86_test(void);
const testfunc_t* xkb_test(void);
const testfunc_t* xtest_test(void);
const testfunc_t* protocol_xchangedevicecontrol_test(void);
const testfunc_t* protocol_xiqueryversion_test(void);
const testfunc_t* protocol_xiquerydevice_test(void);
const testfunc_t* protocol_xiselectevents_test(void);
const testfunc_t* protocol_xigetselectedevents_test(void);
const testfunc_t* protocol_xisetclientpointer_test(void);
const testfunc_t* protocol_xigetclientpointer_test(void);
const testfunc_t* protocol_xipassivegrabdevice_test(void);
const testfunc_t* protocol_xiquerypointer_test(void);
const testfunc_t* protocol_xiwarppointer_test(void);
const testfunc_t* protocol_eventconvert_test(void);
const testfunc_t* xi2_test(void);
const testfunc_t* ddc_tests(void);
#endif /* TESTS_H */