From d416ceb0c415830163c483e1c510c79cfe362da8 Mon Sep 17 00:00:00 2001
From: mjbudd77 <mjbudd77@gmail.com>
Date: Fri, 7 Aug 2020 13:23:43 -0400
Subject: [PATCH] Added GTK3/SDL2 based fceux build capability into cmake build
 file. It is configurable from the command line which GUI to build GTK or QT
 (default).

---
 src/CMakeLists.txt | 65 +++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 56 insertions(+), 9 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7e51a044..38256b01 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,9 +1,12 @@
 
+if ( ${GTK} )
+set( APP_NAME fceux-gtk)
+else()
+set( APP_NAME fceux)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTORCC ON)
 set(CMAKE_AUTOUIC ON)
-
-set( APP_NAME fceux)
+endif()
 
 if(WIN32)
   set(SOURCES ${SRC_CORE} ${SRC_DRIVERS_COMMON} ${SRC_DRIVERS_WIN})
@@ -27,14 +30,22 @@ else(WIN32)
   # Use the built-in cmake find_package functions to find dependencies
   # Use package PkgConfig to detect headers/library what find_package cannot find.
   find_package(PkgConfig REQUIRED)
-  find_package(Qt5 COMPONENTS Widgets OpenGL REQUIRED)
   find_package(OpenGL REQUIRED)
   find_package(ZLIB REQUIRED)
 
-  add_definitions( ${Qt5Widgets_DEFINITIONS}  )
-  include_directories( ${Qt5Widgets_INCLUDE_DIRS} )
+  add_definitions( -Wall  -Wno-write-strings  -Wno-sign-compare  -Wno-parentheses  -Wno-unused-local-typedefs  -fPIC )
 
-  add_definitions( -D__QT_DRIVER__  -Wall  -Wno-write-strings  -Wno-sign-compare  -Wno-parentheses  -Wno-unused-local-typedefs  -fPIC -DQT_DEPRECATED_WARNINGS )
+  if ( ${GTK} )
+     pkg_check_modules( GTK3 REQUIRED gtk+-3.0)
+     pkg_check_modules( X11  REQUIRED x11)
+     add_definitions( ${GTK3_CFLAGS}  ${X11_CFLAGS} )
+     add_definitions( -D_GTK -DOPENGL )
+  else(${GTK})
+     find_package(Qt5 COMPONENTS Widgets OpenGL REQUIRED)
+     add_definitions( ${Qt5Widgets_DEFINITIONS}  )
+     include_directories( ${Qt5Widgets_INCLUDE_DIRS} )
+     add_definitions( -D__QT_DRIVER__  -DQT_DEPRECATED_WARNINGS )
+  endif()
 
   # Check for libminizip
   pkg_check_modules( MINIZIP REQUIRED minizip)
@@ -381,6 +392,24 @@ set(SRC_DRIVERS_COMMON
   ${CMAKE_CURRENT_SOURCE_DIR}/drivers/videolog/rgbtorgb.cpp
 )
 
+if ( ${GTK} )
+set(SRC_DRIVERS_SDL
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/cheat.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/config.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/debugger.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/glxwin.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/gui.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/input.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/memview.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/ramwatch.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/sdl.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/sdl-joystick.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/sdl-sound.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/sdl-throttle.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/sdl-video.cpp
+  ${CMAKE_CURRENT_SOURCE_DIR}/drivers/sdl/unix-netplay.cpp
+)
+else()
 set(SRC_DRIVERS_SDL
   ${CMAKE_CURRENT_SOURCE_DIR}/drivers/Qt/main.cpp  
   ${CMAKE_CURRENT_SOURCE_DIR}/drivers/Qt/ConsoleWindow.cpp  
@@ -407,6 +436,7 @@ set(SRC_DRIVERS_SDL
   ${CMAKE_CURRENT_SOURCE_DIR}/drivers/Qt/sdl-throttle.cpp  
   ${CMAKE_CURRENT_SOURCE_DIR}/drivers/Qt/unix-netplay.cpp
 )
+endif()
 
 set(SOURCES ${SRC_CORE} ${SRC_DRIVERS_COMMON} ${SRC_DRIVERS_SDL})
 
@@ -427,11 +457,27 @@ add_executable(  ${APP_NAME}  MACOSX_BUNDLE ${APP_ICON} ${SOURCES} ../resources.
 	${CMAKE_CURRENT_BINARY_DIR}/fceux_git_info.cpp)
 
 else()
-add_executable(  ${APP_NAME}  ${SOURCES} ../resources.qrc 
-	${CMAKE_CURRENT_BINARY_DIR}/fceux_git_info.cpp)
+
+   if ( ${GTK} )
+      add_executable(  ${APP_NAME}  ${SOURCES} 
+   	   ${CMAKE_CURRENT_BINARY_DIR}/fceux_git_info.cpp)
+   else()
+      add_executable(  ${APP_NAME}  ${SOURCES} ../resources.qrc 
+   	   ${CMAKE_CURRENT_BINARY_DIR}/fceux_git_info.cpp)
+   endif()
 endif()
 
-target_link_libraries( fceux  
+if ( ${GTK} )
+   target_link_libraries( ${APP_NAME}  
+   ${GTK3_LDFLAGS} ${X11_LDFLAGS}
+   ${OPENGL_LDFLAGS}
+ 	${SDL2_LDFLAGS}
+	${MINIZIP_LDFLAGS} ${ZLIB_LIBRARIES}
+	${LUA_LDFLAGS}
+ 	${SYS_LIBS}
+)
+else()
+target_link_libraries( ${APP_NAME}  
    ${Qt5Widgets_LIBRARIES}
    ${Qt5OpenGL_LIBRARIES}
    ${OPENGL_LDFLAGS}
@@ -440,6 +486,7 @@ target_link_libraries( fceux
 	${LUA_LDFLAGS}
  	${SYS_LIBS}
 )
+endif()
 
 if (APPLE)