hidapi: Add SDL_hidapi.c, allows support for multiple hidapi backends.

This is currently supported on Linux and macOS. iOS and Android are not
supported at all, Windows support could be added with some changes to the libusb
backend. The Visual Studio and Xcode projects do not use this feature.

Based on Valve Software's hid.cpp, written in collaboration with Andrew Eikum.
This commit is contained in:
Ethan Lee 2019-07-31 12:20:55 -04:00
parent 571fc2a8b1
commit 55c49e7d33
7 changed files with 847 additions and 27 deletions

View file

@ -1088,8 +1088,15 @@ macro(CheckHIDAPI)
set(SOURCE_FILES ${SOURCE_FILES} ${HIDAPI_SOURCES})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBUSB_CFLAGS} -I${SDL2_SOURCE_DIR}/src/hidapi/hidapi")
if(NOT HIDAPI_SKIP_LIBUSB)
set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/hidapi/libusb/hid.c)
list(APPEND EXTRA_LIBS ${LIBUSB_LIBS})
if(HIDAPI_ONLY_LIBUSB)
set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/hidapi/libusb/hid.c)
list(APPEND EXTRA_LIBS ${LIBUSB_LIBS})
else()
set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/hidapi/SDL_hidapi.c)
# libusb is loaded dynamically, so don't add it to EXTRA_LIBS
FindLibraryAndSONAME("usb-1.0")
set(SDL_LIBUSB_DYNAMIC "\"${USB_LIB_SONAME}\"")
endif()
endif()
endif()
endif()