Descent 1 mangles colors during `g3_init_polygon_model`, so this must
not be called on polygons not designed for mangling. Rearrange the
logic to allow Descent 1 to verify that polygon models are well-formed
without using the functions that mangle the colors.
Fixes: 42a2e3ab0b ("Avoid crash loading polymodels with invalid subcalls")
Reported-by: derhass <https://github.com/dxx-rebirth/dxx-rebirth/issues/416>
Most uses pass an orientation matrix. All sites are deterministic about
whether a matrix is passed. Make the matrix mandatory for sites that
passed it, and split out a separate version of g3_start_instance_matrix
for the 2 sites which do not provide orientation.
Rename symbol WORDS_NEED_ALIGNMENT to DXX_WORDS_NEED_ALIGNMENT to show that it is a DXX
symbol, not one inherited from a library.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -wl WORDS_NEED_ALIGNMENT -- '*.h' '*.cpp' | xargs sed -i -e 's/^\s*#ifdef \(WORDS_NEED_ALIGNMENT\)\>/#if DXX_\1/' -e 's/\s*#\(el\)\?if \(.*\)defined(\(WORDS_NEED_ALIGNMENT\))/#\1if \2DXX_\3/' -e 's/^\s*#ifndef \(WORDS_NEED_ALIGNMENT\)\>/#if !DXX_\1/'
Rename symbol OGL to DXX_USE_OGL to show that it is a DXX
symbol, not one inherited from a library. Move it to dxxsconf.h to
shorten the command line.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -lzw OGL -- '*.h' '*.cpp' | xargs -0 sed -i -e 's/\(\s*#\s*if\)def\s*OGL/\1 DXX_USE_OGL/' -e 's/\(\s*#\s*if\)ndef OGL/\1 !DXX_USE_OGL/' -e 's/\(\s*#\s*if !\?\)defined(OGL)/\1DXX_USE_OGL/'
Uses of `(short*)` usually want exactly a 16-bit signed integer. Most
platforms provide that as `short`, but that is not guaranteed.
s/(short \(*\+\)\s*)/(int16_t \1)/g
C casts do not require parentheses. C++ casts require grouping around
the target. Prepare for conversion to C++ casts by adding otherwise
unnecessary parentheses around the target of simple C casts.
s/\((\s*\(\(un\)\?signed\|int\|char\|short\|long\|float\|double\|s\?size_t\|\(u\?int[[:digit:]]\+_t\)\)\s*\**\s*)\s*\)\([&+-]\?\)\([[:alnum:]_.]\+\s*->\s*\)*\([[:alnum:]_.]\+\)\(\s*\[[^][]*\]\)*\(\s*\([];+>)*\/^%,|&<>]\)\|$\|\(\s*-\s*[^>]\)\)/\1(\5\6\7\8)\9/g
This pass only targets commonly used standard types.
s/(\(\s*\(\(un\)\?signed\|int\|char\|short\|long\|float\|double\|s\?size_t\|\(u\?int[[:digit:]]\+_t\)\)\s*\*\)\s*)\s*(/reinterpret_cast<\1>(/g
Descent for DOS supported paging content on demand. Rebirth has no
support for paging content out, but retained piggy_page_flushed
to track whether anything had been paged out. Commit 3c20c24 ("Disable
piggy_bitmap_page_out_all") removed the last site that could set
piggy_bitmap_page_out_all to a non-zero value. All remaining code
either tests it for non-zero or sets it to zero.
Remove the statements that set it to zero.
Remove assertions that the value is zero.
Remove conditional blocks that execute only when it is non-zero.
The cast provokes a warning on systems that require alignment, so remove
it. memcpy takes const void* input, so the cast is unnecessary.
Reported-by: MattWatt <https://github.com/dxx-rebirth/dxx-rebirth/issues/119>
Integer promotion changed short+short into an int, but INTEL_SHORT only
takes short or unsigned short. Add a cast to force the result back to
short.
Reported-by: derhass <https://github.com/dxx-rebirth/dxx-rebirth/issues/56>