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Add support for touchpad and sensor handling via SDL

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This should enable support for more controllers besides the DS4 and
DualSense, basically any controller supported by SDL that has at least
one touchpad, an accelerometer and a gyroscope.

Older SDL versions have been tested down to 2.0.9. Versions older than
2.0.14 won't have sensors and touchpad support, though.

Setsu is deprecated and remains in-tree for now, but defaults to being
disabled if SDL2 is found and >= 2.0.14. If Setsu is enabled explicitly,
touchpad and sensors are not handled by SDL.
This commit is contained in:
Johannes Baiter 2022-11-07 22:50:32 +01:00 • committed by Florian Märkl
commit 4c8209762c
9 changed files with 298 additions and 59 deletions
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20
cmake/FindSDL2.cmake
View file

@ -1,6 +1,26 @@
find_package(SDL2 NO_MODULE QUIET)
# Adapted from libsdl-org/SDL_ttf: https://github.com/libsdl-org/SDL_ttf/blob/main/cmake/FindPrivateSDL2.cmake#L19-L31
# Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
# Licensed under the zlib license (https://github.com/libsdl-org/SDL_ttf/blob/main/LICENSE.txt)
set(SDL2_VERSION_MAJOR)
set(SDL2_VERSION_MINOR)
set(SDL2_VERSION_PATCH)
set(SDL2_VERSION)
if(SDL2_INCLUDE_DIR)
file(READ "${SDL2_INCLUDE_DIR}/SDL_version.h" _sdl_version_h)
string(REGEX MATCH "#define[ \t]+SDL_MAJOR_VERSION[ \t]+([0-9]+)" _sdl2_major_re "${_sdl_version_h}")
set(SDL2_VERSION_MAJOR "${CMAKE_MATCH_1}")
string(REGEX MATCH "#define[ \t]+SDL_MINOR_VERSION[ \t]+([0-9]+)" _sdl2_minor_re "${_sdl_version_h}")
set(SDL2_VERSION_MINOR "${CMAKE_MATCH_1}")
string(REGEX MATCH "#define[ \t]+SDL_PATCHLEVEL[ \t]+([0-9]+)" _sdl2_patch_re "${_sdl_version_h}")
set(SDL2_VERSION_PATCH "${CMAKE_MATCH_1}")
if(_sdl2_major_re AND _sdl2_minor_re AND _sdl2_patch_re)
set(SDL2_VERSION "${SDL2_VERSION_MAJOR}.${SDL2_VERSION_MINOR}.${SDL2_VERSION_PATCH}")
endif()
endif()
if(SDL2_FOUND AND (NOT TARGET SDL2::SDL2))
add_library(SDL2::SDL2 UNKNOWN IMPORTED GLOBAL)
if(NOT SDL2_LIBDIR)