Anthony @ POW Games
SDL_CreateTextureFromSurface makes an internal call to SDL_GetColorKey which can return an error and spams the error log with "Surface doesn't have a colorkey" even though the original function didn't return an error.
Wayde Reitsma
After attempting to use SDL2 in the way described in this bug, I found the main issue was the includes not being added to the compiler command.
I found the issue was that the target_include_directories commands for the SDL2, SDL2-static and SDL2main targets only sets the public includes for installations using the INSTALL_INTERFACE generator expression.
I have written a patch to CMakeLists.txt that fixes this issue by adding another item to the target_include_directories commands, utilizing the BUILD_INTERFACE generator expression to correctly add the include directory during builds.
src/joystick/hidapi/SDL_hidapijoystick.c: In function 'HIDAPI_InitializeDiscovery':
src/joystick/hidapi/SDL_hidapijoystick.c:281: error: 'true' undeclared (first use in this function)
src/joystick/hidapi/SDL_hidapijoystick.c:281: error: (Each undeclared identifier is reported only once
src/joystick/hidapi/SDL_hidapijoystick.c:281: error: for each function it appears in.)
src/joystick/hidapi/SDL_hidapijoystick.c: In function 'HIDAPI_UpdateDiscovery':
src/joystick/hidapi/SDL_hidapijoystick.c:339: error: 'true' undeclared (first use in this function)
src/joystick/hidapi/SDL_hidapijoystick.c:341: error: ISO C90 forbids mixed declarations and code
The previous code attempted to use set_buffer_size / set_period_size
discretely, favoring the parameters which generated a buffer size that was
exactly 2x the requested buffer size. This solution ultimately prioritizes
only the buffer size, which comes at a large performance cost on some machines
where this results in an excessive number of periods. In my case, for a 4096
sample buffer, this configured the device to use 37 periods with a period size
of 221 samples and a buffer size of 8192 samples. With 37 periods, the SDL
Audio thread was consuming 25% of the CPU.
This code has been refactored to use set_period_size and set_buffer_size
together. set_period_size is called first to attempt to set the period to
exactly match the requested buffer size, and set_buffer_size is called second
to further refine the parameters to attempt to use only 2 periods. The
fundamental change here is that the period size / count won't go to extreme
values if the buffer size can't be exactly matched, the buffer size should
instead just increase to the next closest multiple of the target period size
that is supported. After changing this, for a 4096 sample buffer, the device
is configured to use 3 periods with a period size of 4096 samples and a buffer
size of 12288 samples. With only 3 periods, the SDL Audio thread doesn't even
show up when profiling.
Fixes Bugzilla #4156.
Fixes CMake not being able to find X11 on FreeBSD (which generally has the
headers in /usr/local/include/X11).
List of other popular places borrowed from CMake's FindX11 module.
This worked on the configure script because of magic in the AC_PATH_X macro.
Fixes Bugzilla #4815.
"Applications (such as SDL's testgesture) do "event.tfinger.x * window_width"
to find window coord. Currently the X11 XInput2 backend expects application
to do "event.tfinger.x * (window_width-1)" instead.
X11 XInput2 touch events are normalized so x is 1.0 at "width - 1" but other
SDL backends appear to have x be 1.0 at "width". Same issue for touch event
y with regards to height."
Fixes Bugzilla #4183.
If we change the current context behind the app's back, those tracking
the current context to minimize context changes are going to get
confused.
This brings the EGL backend in line with the GLX one.
Fixes Bugzilla #4199.
This was reproducible by running an SDL app on the console from an ssh login. In this case the terminal wasn't owned by the user running the app, so we were using the default keymap, which didn't have state transitions defined for ctrl and alt, so once we entered that state keypresses would no longer transition out of that state, nor would they generate text.
As a workaround, we'll just reset to the default shift state if that happens, which means we'll get text for keys pressed while ctrl is held down, but I don't think that's a big problem.
Note that in this case we also can't mute the keyboard, so the keypresses go to the console, which probably isn't what you want...
