Most of them are already aligned to their natural boundaries, so lowering
the alignment to 1 byte can only worsen things by making the C compiler
generate poorer (unaligned access) code for some platforms.
The layout of structures is not specified by the C Standard, but is rather
given by a particular platform + toolchain's ABI (application binary interface).
Most ABIs follow the expected pattern "alignment of scalars is their size,
alignment of arrays is that of its element type, alignment of structs is the
maximum alignment of its members". A couple of links to particular ABIs are
given in build.h.
Problems are expected with archs that care about unaligned access when a pointer
to a non-packed struct is taken that resides in a packed aggregate, but these
uses should be weeded out (I'm not sure if there are any in our codebase).
The following types are affected, only hitdata_t changes its size:
sectortype, walltype, spritetype, spriteext_t, spritesmooth_t,
struct validmode_t, picanm_t, palette_t, vec2_t, vec3_t, hitdata_t.
git-svn-id: https://svn.eduke32.com/eduke32@3455 1a8010ca-5511-0410-912e-c29ae57300e0
Also, add another flag, signifying that from the editor, also the
"lastwall"s (i.e. the CCW-linked points) should get collected. This is
to signal the editor that their wall lengths should be displayed, too.
git-svn-id: https://svn.eduke32.com/eduke32@3394 1a8010ca-5511-0410-912e-c29ae57300e0
- Rewrite the "clear background" routine in a no-brainer way instead of
juggling around with rotatesprite(). Make it common to game+editor.
Expose glRectd to glbuild.
- Don't stop OSD text line drawing when encountering a non-printable char.
Instead, treat it as space.
- In OSD_SetTextMode(), don't use swaplong (which really swaps 32-bit ints)
to swap pointers. Write an analogous "swapptr" instead.
- When changing from/to OSD, don't inject a pause key. This *might* have been
the cause of the reported pausing problems.
- clean up the code...
(Yes, this commit throws together too much stuff. I suck sometimes. :P)
git-svn-id: https://svn.eduke32.com/eduke32@3321 1a8010ca-5511-0410-912e-c29ae57300e0
This global option will set bit 1024 and clear bits 256 and 512 for all
rotatesprite calls, fixing complex HUD drawing code relying on precise
alignment of individual elements (widescreen rotatesprite is entirely
unsuitable for this purpose).
git-svn-id: https://svn.eduke32.com/eduke32@3284 1a8010ca-5511-0410-912e-c29ae57300e0
The two uses are from hitscan and neartag. The functionality is reproduced
exactly (assuming I made no mistake), down to different distance checking
(<= vs. <).
git-svn-id: https://svn.eduke32.com/eduke32@3228 1a8010ca-5511-0410-912e-c29ae57300e0
This function also changed: it doesn't handle floor-aligned sprites now,
and the z offset is returned instead of set by pointer.
git-svn-id: https://svn.eduke32.com/eduke32@3205 1a8010ca-5511-0410-912e-c29ae57300e0
The size of that struct is currently 4, and its layout almost the same as
what is read in with loadpics(). The number of tiles in an animation is
bumped to 256, so that the max. tile difference in DEF's animtilerange is
255. (There's no way to have such animations from ART.)
git-svn-id: https://svn.eduke32.com/eduke32@3202 1a8010ca-5511-0410-912e-c29ae57300e0
Note the type change of vplce[] in engine.c: int32_t -> uint32_t.
git-svn-id: https://svn.eduke32.com/eduke32@3172 1a8010ca-5511-0410-912e-c29ae57300e0
This reverts r3159..r3161.
Conflicts:
eduke32/build/include/compat.h
(Handled so that r3163's changes are kept applied.)
git-svn-id: https://svn.eduke32.com/eduke32@3165 1a8010ca-5511-0410-912e-c29ae57300e0
I think there's also a fix for the CON precache system breakage in here (lost it in my local tree when I started getting the C++ build working in MSVC, sorry!)
git-svn-id: https://svn.eduke32.com/eduke32@3159 1a8010ca-5511-0410-912e-c29ae57300e0
arrays; any write access to them will run the corresponding hook and write
to the [sector/wall/sprite/tsprite]clean array.
Note: tsprite and sprite use the same hook and require running a few more
instructions per access in order to disambiguiate; this could be made more
optimal (like the other arrays) by clearly separating the types in the game
code.
Note #2: taking a member's address currently marks it dirty because of tons
of helper functions across the editor code. I don't know how many read-only
accesses we have after taking a member address, but it could also be fixed
with some finessing of the code.
git-svn-id: https://svn.eduke32.com/eduke32@3138 1a8010ca-5511-0410-912e-c29ae57300e0
Credit to Plagman for the idea and doing the work on the game side, which is included in this commit.
(Building as C++ will give us features with which we can make improvements and optimizations on the multiplayer code and Polymer.)
git-svn-id: https://svn.eduke32.com/eduke32@3116 1a8010ca-5511-0410-912e-c29ae57300e0
The attribute is set per tile from DEF: either
texhitscanrange <begintile> <endtile>
or
tilefromtexture <tile> { ... texhitscan ... }
(As a special case, the list may only contain "texhitscan", in which case the
texture is not changed.)
In passing, do some cleanup for "tilefromtexture" DEF parsing: the list tokens
should now be accepted in any order, and errors don't appear in the middle of
the list parsing.
git-svn-id: https://svn.eduke32.com/eduke32@3078 1a8010ca-5511-0410-912e-c29ae57300e0
- factor out the "is inside" predicates
- rename updatesector_onlynextwalls() -> updatesectorbreadth()
- add ATTRIBUTE((nonnull(4))) to the bitmap arg of updatesectorexclude().
git-svn-id: https://svn.eduke32.com/eduke32@3037 1a8010ca-5511-0410-912e-c29ae57300e0
This trims four 4k pages of code from the release EDuke32 build and
one page from Mapster32.
git-svn-id: https://svn.eduke32.com/eduke32@2991 1a8010ca-5511-0410-912e-c29ae57300e0
We're pulling stuff from math.h even in non-GL builds right now, so
adding libc's sin() and atan() doesn't seem like a big deal. In the
unlikely event that their accuracy is so bad that the calculated tables
don't match the original ones, a warning is issued on little-endian
platforms.
git-svn-id: https://svn.eduke32.com/eduke32@2988 1a8010ca-5511-0410-912e-c29ae57300e0
ROTATESPRITE_MAX is moved to build.h and all orientation bits from CON commands
using rotatesprite are ANDed with (ROTATESPRITE_MAX-1). Some of the functions
use ROTATESPRITE_MAX for different internal purposes, which will not be exposed
to CON now (a good thing). Also, dorotspr_handle_bit2 is made clearer.
git-svn-id: https://svn.eduke32.com/eduke32@2929 1a8010ca-5511-0410-912e-c29ae57300e0
This makes the code rather more readable in some places. Unlike the two
preceding commits, this one is actually purely textual replacement.
git-svn-id: https://svn.eduke32.com/eduke32@2877 1a8010ca-5511-0410-912e-c29ae57300e0
This was introduced with r2771, which fixed e.g. AMC TC city_si's mirrors,
but instructed the base drawrooms inside yax_drawrooms to not correct the
passed sectnum. Therefore, stuff would get drawn wrongly when passing
sector boundaries, like from the platform to the rails in trueror1.map.
git-svn-id: https://svn.eduke32.com/eduke32@2810 1a8010ca-5511-0410-912e-c29ae57300e0
-Wwrite-strings is useful to detect code where string literals and e.g. alloc'd
strings are used side-by-side, potentially creating dangerous situations, or to
find uses of old, non-constified APIs. However, enabling it would still flood
the log with too many warnings. Also, GCC wrongly warns for initializations of
char arrays.
git-svn-id: https://svn.eduke32.com/eduke32@2796 1a8010ca-5511-0410-912e-c29ae57300e0
uhypsq calculates the hypotenuse using unsigned multiplication. This is
permissible since for arbitrary int32s a and b, the following holds in
two's complement arithmetic:
(int32_t)((uint32_t)a * b) == (int32_t)((int64_t)a * b)
("Signed and unsigned multiplication is the same on the bit level.")
This fixes various overflows where wall lengths for walls of length > 46340
are calculated, but does not rid us of other overflows in the same vein
(usually dot products between vectors where one point is a wall vertex and
the other a position in a sector).
git-svn-id: https://svn.eduke32.com/eduke32@2791 1a8010ca-5511-0410-912e-c29ae57300e0
NAM and Napalm can now share their con, def, and rts files if the one for their respective game is not present because the con and rts files are identical.
Also, decapitalize two string literals missed in r2540.
git-svn-id: https://svn.eduke32.com/eduke32@2726 1a8010ca-5511-0410-912e-c29ae57300e0
Defines SPRITES_OF(Statnum, Iter) and SPRITES_OF_SECT(Sectnum, Iter)
[The first is so that STAT_* can be substituted for Iter and it reads nicely.]
Usage should be self-explanatory, but one thing to keep in mind is that
the sprites that are iterated over MUST NOT be deleted.
git-svn-id: https://svn.eduke32.com/eduke32@2707 1a8010ca-5511-0410-912e-c29ae57300e0
