libs/SDL2/cmake/sdl2-config-version.cmake

+# based on the files generated by CMake's write_basic_package_version_file
+
+# SDL2 CMake version configuration file:
+# This file is meant to be placed in a cmake subfolder of SDL2-devel-2.x.y-VC
+
+if(NOT EXISTS "${CMAKE_CURRENT_LIST_DIR}/../include/SDL_version.h")
+    message(AUTHOR_WARNING "Could not find SDL_version.h. This script is meant to be placed in the root of SDL2-devel-2.x.y-VC")
+    return()
+endif()
+
+file(READ "${CMAKE_CURRENT_LIST_DIR}/../include/SDL_version.h" _sdl_version_h)
+string(REGEX MATCH "#define[ \t]+SDL_MAJOR_VERSION[ \t]+([0-9]+)" _sdl_major_re "${_sdl_version_h}")
+set(_sdl_major "${CMAKE_MATCH_1}")
+string(REGEX MATCH "#define[ \t]+SDL_MINOR_VERSION[ \t]+([0-9]+)" _sdl_minor_re "${_sdl_version_h}")
+set(_sdl_minor "${CMAKE_MATCH_1}")
+string(REGEX MATCH "#define[ \t]+SDL_PATCHLEVEL[ \t]+([0-9]+)" _sdl_patch_re "${_sdl_version_h}")
+set(_sdl_patch "${CMAKE_MATCH_1}")
+if(_sdl_major_re AND _sdl_minor_re AND _sdl_patch_re)
+    set(PACKAGE_VERSION "${_sdl_major}.${_sdl_minor}.${_sdl_patch}")
+else()
+    message(AUTHOR_WARNING "Could not extract version from SDL_version.h.")
+    return()
+endif()
+
+if(PACKAGE_FIND_VERSION_RANGE)
+    # Package version must be in the requested version range
+    if ((PACKAGE_FIND_VERSION_RANGE_MIN STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION_MIN)
+        OR ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_GREATER PACKAGE_FIND_VERSION_MAX)
+        OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND PACKAGE_VERSION VERSION_GREATER_EQUAL PACKAGE_FIND_VERSION_MAX)))
+        set(PACKAGE_VERSION_COMPATIBLE FALSE)
+    else()
+        set(PACKAGE_VERSION_COMPATIBLE TRUE)
+    endif()
+else()
+    if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
+        set(PACKAGE_VERSION_COMPATIBLE FALSE)
+    else()
+        set(PACKAGE_VERSION_COMPATIBLE TRUE)
+        if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
+            set(PACKAGE_VERSION_EXACT TRUE)
+        endif()
+    endif()
+endif()
+
+# if the using project doesn't have CMAKE_SIZEOF_VOID_P set, fail.
+if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "")
+    set(PACKAGE_VERSION_UNSUITABLE TRUE)
+endif()
+
+# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
+if(NOT (CMAKE_SIZEOF_VOID_P STREQUAL "8" OR CMAKE_SIZEOF_VOID_P STREQUAL "4"))
+    set(PACKAGE_VERSION "${PACKAGE_VERSION} (32+64bit)")
+    set(PACKAGE_VERSION_UNSUITABLE TRUE)
+endif()

libs/SDL2/docs/README-gesture.md

@@ -2,7 +2,7 @@ Dollar Gestures
 ===========================================================================
 SDL provides an implementation of the $1 gesture recognition system. This allows for recording, saving, loading, and performing single stroke gestures.
 
-Gestures can be performed with any number of fingers (the centroid of the fingers must follow the path of the gesture), but the number of fingers must be constant (a finger cannot go down in the middle of a gesture). The path of a gesture is considered the path from the time when the final finger went down, to the first time any finger comes up. 
+Gestures can be performed with any number of fingers (the centroid of the fingers must follow the path of the gesture), but the number of fingers must be constant (a finger cannot go down in the middle of a gesture). The path of a gesture is considered the path from the time when the final finger went down, to the first time any finger comes up.
 
 Dollar gestures are assigned an Id based on a hash function. This is guaranteed to remain constant for a given gesture. There is a (small) chance that two different gestures will be assigned the same ID. In this case, simply re-recording one of the gestures should result in a different ID.
 
@@ -42,7 +42,7 @@ Both functions return the number of gestures successfully saved.
 
 Loading:
 --------
-To load templates from a file, call SDL_LoadDollarTemplates(touchId,src) where touchId is the id of the touch to load to (or -1 to load to all touch devices), and src is an SDL_RWops pointer to a gesture save file. 
+To load templates from a file, call SDL_LoadDollarTemplates(touchId,src) where touchId is the id of the touch to load to (or -1 to load to all touch devices), and src is an SDL_RWops pointer to a gesture save file.
 
 SDL_LoadDollarTemplates returns the number of templates successfully loaded.
 
@@ -51,7 +51,7 @@ SDL_LoadDollarTemplates returns the number of templates successfully loaded.
 ===========================================================================
 Multi Gestures
 ===========================================================================
-SDL provides simple support for pinch/rotate/swipe gestures. 
+SDL provides simple support for pinch/rotate/swipe gestures.
 Every time a finger is moved an SDL_MULTIGESTURE event is sent with the following fields:
 
 * event.mgesture.touchId - the Id of the touch on which the gesture was performed.