When we have a 23h day cycle and 23h offset, doing a 24h flip will
result in -1h. Flip by day length instead so that 23h-23h will result
in 0h.

This has a negative side effect of values not being saved exactly as
users specified them, so a -1h offset will turn to 4h on next load
with a 5h long day. But it is nature of a day to 'loop', so I decided
there is no point to translate -1 into 14 or something like that.

* Fix alloc_tex_image to account for more missing texture memory
Change alloc_tex_image calls to pass internal format to properly account for used image type

* Fix scaleDown passing primary format in place of internal format to glTexImage2D

* Make texture debug view and texture bias calculation consistent and remove double accounting for render target textures

)

…used). (#2387)

…er calling another agent back too soon

…ions (#2389)

* Use GL texture swizzling instead of scratch buffer for deprecated formats when GL 3.3 is available
Fix crash when GL texture compression is enabled

* Fix UI font atlas being eligible for texture compression

#2391: Remove avatar rigging logging due to load time impact

…tion (#2369)

* #2349: Blinn-Phong avatar/animesh rendering optimization/correctness pass
* #2349: General avatar/animesh rendering optimization/correctness pass

…evelop

…evelop

viewer#2363 Region Day Offset error with Time of Day

…rom probe generation passes (#2405)

* Add dedicated sun probe shader and remove SSAO and shadow smoothing from probe generation passes (#2398)

* Fix usage of removed sunLightNoFragCoordV in shader manager

Adjusted calculations based on dimensions and assumed maximum block size so that higher discards (4-5) of 2048x2048 images can be decoded with aux/alpha.

(It should also work for dimensions larger than 2048.)

This function will now return a reliable discard 5 data size for unknown dimensions (w and/or h equals 0), which could be used in LLTextureFetch::createRequest to skip the header fetch and go right to a discard 5 decode.

Tested on OpenJPEG 2.5 with partial decode support (opj_decoder_set_strict_mode set to false).

Should work on KDU fine but might be a good idea to test.

Adds gather4 support under GLSL 4.0+

Introduce Contrast Adaptive Sharpening post process effect

…evelop

…alls

…y-show-briefly

#2432 default nametags to only show briefly and #2431 fix redundant search for pixiesmall.j2c

…e-outliers-for-updateimagedecodepriority

#2438 Address frame stalls in updateImageDecodePriority

After instrumenting nametags some more, really UI rendering performance improvements should just focus on LLFontGL::render

Clear unused metrics

…eometric prim with a corner

…ng the "Customize" button

#2421: Do not calculate and store silhouette edges for nearly every geometric prim with a corner

Each frame renderDebug() was pointlesly going over a large list of
partitions and bridges.

…evelop

Add SMAA buffer generation passes
Add quality levels for both FXAA and SMAA
Separate gamma correction and tonemapping for effects that require linear-but-tonemapped inputs
Move application of noise to final render pass to screen to avoid damaging other post process effects

…ed key CANMOD)

Introduce SMAA and rework post process chain for better visual quality

… Destination field

#2448: Fix crash rendering rigged PBR prims

…options to control tonemap mix (#2464) (#2468)

…delbackgroundfetch code. (#2476)

…item to the similar one

#2483: Fix label typo in PBR terrain texture transforms tab

Fix visualizing luminance buffer and small cleanup

…er in unpredictable manner

#2490: Fix PBR terrain texture transform feature flag handled by viewer in unpredictable manner

…#2497)

…evelop

In a few locations, there were cases where connection shutdown
would stall, leaving the connection in place.  This was due to
bad handling of the outstanding operations counter.

Collection of vertex buffers happens to often with segmented text.

…code. (#2507)

Introduce OpenXR SDK prebuilt package and cmake setup

Fix some race conditions on webrtc connection shutdown.

…y calling.

The code attempted to do a call to a session immediately after a call that
launched a coroutine to set up a session.  Sometimes, the coroutine executed
in time, sometimes not.

The fix is to set a flag to start a call after the session has been created
on the server.

Test Plan:
* Close all active chat sessions.
* Select 'Voice Call' in the context menu of a nearby avatar.
* Validate popup appears for that nearby avatar requesting to start/ignore/go to im.
* Select 'start'
* Validate the call completes.

Fix race condition that was preventing "Voice Call" menu from reliably calling.

…en after fetch is complete

Follow-up fix for 238a2a6

…2518, #2519)

…nce/p2p/group call

Processing for vivox was being enabled when teleporting into a vivox region
regardless as to whether the user was in a conference/p2p/group call, resulting
in vivox spatial and webrtc conference/p2p/group simultaneously being active.

Don't enable vivox spatial when teleporting while in a webrtc conference/p2p/group call

viewer#2411 Use font buffer for inventory

The initial block area for the pyramid walk should not be smaller than the max_block_size area so need an llmax to not allow multiplication below 1.

This was causing decode errors for complex small images (128x128 or smaller) on discard 1 and 2.