What changed in EDuke32, build by build

polymost.cpp: In gloadtile_art_indexed(), reallocate a texture when the tile changes dimensions even if it is shrinking

game.h: fix calc_smoothratio_demo() to take into account differences between timerGetClockRate() and TICRATE when calculating the refresh frequency to interpolate between

polymost.cpp: fix buffer overflow issue in uploadpalswap() & correct the code to initialize an extra row of black pixels

clockticks.hpp: Fix issue where higher precision comparisons would cause unexpected behaviour with game loop code due to ototalclock being incremented rather than set to totalclock (causing a lack of subtick precision and potential doubled up/dropped game updates).

kenbuild/src/game.cpp: Fix compilation issue due to removal of sqr() from pragmas.h in r7597

Change some clocks to support sub-tick precision using a new class, ClockTicks.

timer.cpp: fix order of operations issue with timerUpdate()

timer.cpp: avoid using floating point arithmetic in timerUpdate()

sdlayer.cpp: use glFinish() to synchronize with the buffer swap

timer.cpp: improve cross-platform & cross-compiler issues relating to precision & period.

sounds.cpp: fix infinite loop caused by removal of "else" in r7939

Fix issue with indexed colour textures where in the case that tiles entered the texcache while !waloff[picnum] & were later (re)loaded, the earlier pth pointing to the tilesheet containing the blank tile would never be properly replaced with an updated gl texture.

game.cpp: move check for quitevent during start-up so that if start-up is cancelled during definitions parsing, the game won't continue to play in a half-loaded state.

gameexec.cpp: allow G_ShowView() to execute regardless of the state of g_screenCapture.

tiles.cpp: backup & restore picsiz, walock, & waloff alongside other per tile arrays in artClearMapArt() and artSetupMapArt()

sector.cpp: ensure that if scripts have told us not to render normally to the tile, that we still handle restoring our target & setting up the tile appropriately for what the script may have rendered

engine.cpp: make renderSetTarget() more robust so that passing an xsiz or ysiz <= 0 is not accepted and can't cause a segmentation fault

polymer.cpp: fix issue where assert could fail due to HUD model sprites having an owner >= MAXSPRITES

polymost.cpp: Fix issue where tiles whose dimensions had grown would not have their sizes updated in GL and could fail to update their texture data

polymost.cpp: If a tile in the tilesheet is large enough to fit a redefined tile, use that space rather than allocating a new texture

polymost.cpp: if an indexed colour tile is being reloaded, changed dimensions, and no longer matches the calculated tilesheets, generate a separate texture for it.

build.vcxproj: Execute custom build tools & step before BuildGenerateSources

polymost_scansector(): avoid using a culling method not designed for voxels when handling 1-sided wall aligned sprites that have voxel replacements

Fix mixing offscreenrendering (render targets) and mirrors. Don't allow recursing beyond 1 level of mirroring through multiple levels of render targets.

Fix rendering skyboxes to a tile by altering renderSetTarget() & renderRestoreTarget() to set & reset xdim & ydim so that G_ShowView() can render while a render target is set,

tilepacker.cpp: enclose macro substituted values in parenthesis

Add updatesectorneighbour() and updatesectorneighbourz() and make them accessible to CON to allow searching for nearby neighbouring sectors from a known sector.

Fix edge case where mirrors & TROR could interact and render over skyboxes in the classic software renderer

Fix parallel build by switching to generating .obj files from .glsl files and treat the shader source as an externed global resolved at link time.