Implement SDL3 into the CMakeLists.txt.

CMakeLists.txt

@@ -64,6 +64,7 @@ endif()
 option(CURL_SUPPORT "cURL support" ON)
 option(OPENAL_SUPPORT "OpenAL support" ON)
 option(SYSTEMWIDE_SUPPORT "Enable systemwide installation of game assets" OFF)
+option(SDL3_SUPPORT "Build against SDL 3 instead of SDL2" OFF)
 
 set(SYSTEMDIR "" CACHE STRING "Override the system default directory")
 
@@ -179,9 +180,14 @@ endif()
 # Required libraries to build the different components of the binaries. Find
 # them and add the include/linker directories and flags (in case the package
 # manager find it in a weird place).
+if (SDL3_SUPPORT)
+	find_package(SDL3 REQUIRED)
+	add_definitions(-DUSE_SDL3)
+else()
 	find_package(SDL2 REQUIRED)
 	list(APPEND yquake2IncludeDirectories "${SDL2_INCLUDE_DIR}/..")
 	list(APPEND yquake2SDLLinkerFlags ${SDL2_LIBRARY})
+endif()
 
 # We need an OpenGL implementation.
 set(OpenGL_GL_PREFERENCE GLVND)
@@ -430,7 +436,6 @@ set(Client-Source
 	${CLIENT_SRC_DIR}/cl_view.c
 	${CLIENT_SRC_DIR}/curl/download.c
 	${CLIENT_SRC_DIR}/curl/qcurl.c
-	${CLIENT_SRC_DIR}/input/sdl.c
 	${CLIENT_SRC_DIR}/menu/menu.c
 	${CLIENT_SRC_DIR}/menu/qmenu.c
 	${CLIENT_SRC_DIR}/menu/videomenu.c
@@ -440,7 +445,6 @@ set(Client-Source
 	${CLIENT_SRC_DIR}/sound/sdl.c
 	${CLIENT_SRC_DIR}/sound/sound.c
 	${CLIENT_SRC_DIR}/sound/wave.c
-	${CLIENT_SRC_DIR}/vid/glimp_sdl.c
 	${CLIENT_SRC_DIR}/vid/vid.c
 	${COMMON_SRC_DIR}/argproc.c
 	${COMMON_SRC_DIR}/clientserver.c
@@ -477,6 +481,18 @@ set(Client-Source
 	${SERVER_SRC_DIR}/sv_world.c
 	)
 
+if(SDL3_SUPPORT)
+	set(Client-SDL-Source
+		${CLIENT_SRC_DIR}/input/sdl3.c
+		${CLIENT_SRC_DIR}/vid/glimp_sdl3.c
+	)
+else()
+	set(Client-SDL-Source
+		${CLIENT_SRC_DIR}/input/sdl2.c
+		${CLIENT_SRC_DIR}/vid/glimp_sdl2.c
+	)
+endif()
+
 set(Client-Header
 	${CLIENT_SRC_DIR}/header/client.h
 	${CLIENT_SRC_DIR}/header/console.h
@@ -686,13 +702,16 @@ set(SOFT-Header
 # Main Quake 2 executable
 
 if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
-	add_executable(yquake2 WIN32 ${Client-Source} ${Client-Header} ${Platform-Specific-Source}
+	add_executable(yquake2 WIN32 ${Client-Source} ${Client-SDL-Source} ${Client-Header}
-			${Backends-Generic-Source})
+			${Platform-Specific-Source} ${Backends-Generic-Source})
 	set_target_properties(yquake2 PROPERTIES
 			RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release
 			)
 	target_link_libraries(yquake2 ${yquake2LinkerFlags} ${yquake2ClientLinkerFlags}
 			${yquake2SDLLinkerFlags} ${yquake2ZLibLinkerFlags} ws2_32 winmm)
+	if(SDL3_SUPPORT)
+		target_link_libraries(yquake2 SDL3::SDL3)
+	endif()
 
 	if(MSVC AND CMAKE_MAJOR_VERSION GREATER 3 OR ( CMAKE_MAJOR_VERSION EQUAL 3 AND CMAKE_MINOR_VERSION GREATER_EQUAL 6 ))
 		# CMake >= 3.6 supports setting the default project started for debugging (instead of trying to launch ALL_BUILD ...)
@@ -708,13 +727,16 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
 	add_executable(quake2 WIN32 ${Wrapper-Source})
 	set_target_properties(quake2 PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release)
 else()
-	add_executable(quake2 ${Client-Source} ${Client-Header} ${Platform-Specific-Source}
+	add_executable(quake2 ${Client-Source} ${Client-SDL-Source} ${Client-Header}
-			${Backends-Generic-Source})
+			${Platform-Specific-Source} ${Backends-Generic-Source})
 	set_target_properties(quake2 PROPERTIES
 			RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release
 			)
 	target_link_libraries(quake2 ${yquake2LinkerFlags} ${yquake2ClientLinkerFlags}
 		${yquake2SDLLinkerFlags} ${yquake2ZLibLinkerFlags})
+	if(SDL3_SUPPORT)
+		target_link_libraries(quake2 SDL3::SDL3)
+	endif()
 endif()
 
 # Quake 2 Dedicated Server
@@ -725,19 +747,17 @@ set_target_properties(q2ded PROPERTIES
 	RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release
 	)
 if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
-	target_link_libraries(q2ded ${yquake2LinkerFlags}
+	target_link_libraries(q2ded ${yquake2LinkerFlags})
 else()
 	target_link_libraries(q2ded ${yquake2LinkerFlags} ${yquake2ServerLinkerFlags} ${yquake2ZLibLinkerFlags})
 endif()
 
 # Build the game dynamic library
 add_library(game MODULE ${Game-Source} ${Game-Header})
-
 set_target_properties(game PROPERTIES
 		PREFIX ""
 		SUFFIX ${CMAKE_SHARED_LIBRARY_SUFFIX}
 		)
-
 get_property(isMultiConfig GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
 if(isMultiConfig) # multi-config, like Visual Studio solution
 	set_target_properties(game PROPERTIES
@@ -750,7 +770,6 @@ else() # single-config, like normal Makefiles
 		RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release/baseq2
 		)
 endif()
-
 target_link_libraries(game ${yquake2LinkerFlags})
 
 # Build the GL1 dynamic library
@@ -761,7 +780,11 @@ set_target_properties(ref_gl1 PROPERTIES
 		RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release
 		SUFFIX ${CMAKE_SHARED_LIBRARY_SUFFIX}
 		)
-target_link_libraries(ref_gl1 ${yquake2LinkerFlags} ${yquake2OpenGLLinkerFlags} ${yquake2SDLLinkerFlags})
+target_link_libraries(ref_gl1 ${yquake2LinkerFlags} ${yquake2OpenGLLinkerFlags}
+		${yquake2SDLLinkerFlags})
+if(SDL3_SUPPORT)
+	target_link_libraries(ref_gl1 SDL3::SDL3)
+endif()
 
 # Build the GL3 dynamic library
 add_library(ref_gl3 MODULE ${GL3-Source} ${Glad-GL3-Source} ${GL3-Header} ${Glad-GL3-Header} ${REF-Platform-Specific-Source})
@@ -773,6 +796,9 @@ set_target_properties(ref_gl3 PROPERTIES
 		)
 target_include_directories(ref_gl3 PRIVATE ${CMAKE_SOURCE_DIR}/src/client/refresh/gl3/glad/include)
 target_link_libraries(ref_gl3 ${yquake2LinkerFlags} ${yquake2SDLLinkerFlags})
+if(SDL3_SUPPORT)
+	target_link_libraries(ref_gl3 SDL3::SDL3)
+endif()
 
 # Build the GLES3 dynamic library
 add_library(ref_gles3 MODULE ${GL3-Source} ${Glad-GLES3-Source} ${GL3-Header} ${Glad-GLES3-Header} ${REF-Platform-Specific-Source})
@@ -786,6 +812,9 @@ set_target_properties(ref_gles3 PROPERTIES
 target_include_directories(ref_gles3 PRIVATE ${CMAKE_SOURCE_DIR}/src/client/refresh/gl3/glad-gles3/include)
 target_compile_definitions(ref_gles3 PRIVATE YQ2_GL3_GLES3=1 YQ2_GL3_GLES=1)
 target_link_libraries(ref_gles3 ${yquake2LinkerFlags} ${yquake2SDLLinkerFlags})
+if(SDL3_SUPPORT)
+	target_link_libraries(ref_gles3 SDL3::SDL3)
+endif()
 
 # Build the soft renderer dynamic library
 add_library(ref_soft MODULE ${SOFT-Source} ${SOFT-Header} ${REF-Platform-Specific-Source})
@@ -796,3 +825,6 @@ set_target_properties(ref_soft PROPERTIES
 		SUFFIX ${CMAKE_SHARED_LIBRARY_SUFFIX}
 		)
 target_link_libraries(ref_soft ${yquake2LinkerFlags} ${yquake2SDLLinkerFlags})
+if(SDL3_SUPPORT)
+	target_link_libraries(ref_soft SDL3::SDL3)
+endif()