Previously, if the background failed to load, the kmatrix window was
immediately aborted. Change the logic so that a failure to load uses a
blank black background, but still shows the kmatrix window.
When joystick support is not present, `event_joystick_get_button` is not
declared in joy.h.
Fixes: c24864b180 ("make menus controllable with joystick")
PHYSFSX_fsize opens the file, reads its length, and closes it. Calling
PHYSFSX_fsize in a loop is wasteful, since the file size should not
change while the game is playing.
In most menus, keyboard commands are synthesized
from controller buttons, leveraging the existing
axis-to-button translation.
Menu controls are currently fixed:
- button 0 (A) is confirm (Enter)
- button 1 (B) is cancel (Esc)
- button 2 (X) is switch (Space)
- button 3 (Y) is delete (Delete)
- axes 0 and 1 (main analog pad) maps to cursor keys
- all hats (D-pads) map to cursor keys
Title screens and credits can be confirmed
with any joystick button or axis motion too.
This fixes PCX loading in the non-editor build. PCX loading broke in
3114874713 because it switched from PHYSFSX_openReadBuffered to a call
which did not handle the presence of the marker byte in the filename.
The from_hog_only flag has not been properly supported since the
introduction of PHYSFSX_openReadBuffered in
8b323e7214. Editor builds ignored it on
purpose, and non-editor builds pretended to respect it, only to then
ignore it down inside PHYSFSX_openReadBuffered. For consistency with
code paths that do not use PHYSFSX_openReadBuffered, disable the bypass
in PHYSFSX_openReadBuffered and remove the code in show_title_screen
that applied the flag.
Reported-by: Jayman2000 <https://github.com/dxx-rebirth/dxx-rebirth/issues/510>
Fixes: 3114874713 ("Delegate PCX loading to SDL_image")
Read the entire buffer at once, then remove the carriage returns and set
a null terminator. This reduces the number of calls to PHYSFS_read from
len to 1.
`init_new_page` calls `load_briefing_screen` with the a pointer to
`br->background_name`, which causes a strncpy of the form
```
strncpy(X, X, N);
```
Valgrind warns for this overlap. The copy is useless in that case, so
skip it.
In one path, load_briefing_screen is called with `br->background_name`
as an input. This caused a call to `snprintf(a, sizeof(a), "%s", a);`,
which is undefined behavior. Switch back to the prior style of
unconditionally declaring a local array, performing filename
manipulation in that array, and copying the array back to
`br->background_name` afterward.
Reported-by: zicodxx <https://github.com/dxx-rebirth/dxx-rebirth/issues/420>
Rather than use an inline wrapper and rely on the compiler optimizer to
redirect gr_set_current_canvas(nullptr) to gr_set_default_canvas,
rewrite all relevant calls directly in the source.
git grep -l 'gr_set_current_canvas' | xargs sed -i -e 's:gr_set_current_canvas(\s*NULL\|nullptr\s*);:gr_set_default_canvas();:'
