iOS port (for desktop_version) (#1137)

desktop_version/AppIcon.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,14 @@
+{
+  "images" : [
+    {
+      "filename" : "AppIcon.png",
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

desktop_version/AppIcon.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

desktop_version/CMakeLists.txt

@@ -25,7 +25,7 @@ option(REMOVE_ABSOLUTE_PATHS "If supported by the compiler, replace all absolute
 
 
 # Architecture Flags
-if(APPLE)
+if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
     # Wow, Apple is a huge jerk these days huh?
     set(OSX_10_9_SDK_PATH /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk)
     if(NOT CMAKE_OSX_SYSROOT)
@@ -38,6 +38,8 @@ if(APPLE)
     set(CMAKE_OSX_DEPLOYMENT_TARGET 10.9)
     link_directories(/usr/local/lib)
     add_compile_options(-Werror=partial-availability)
+elseif(CMAKE_SYSTEM_NAME STREQUAL "iOS")
+    set(CMAKE_OSX_DEPLOYMENT_TARGET 12.0) # SDL goes back to iOS 8.0, but modern Xcode doesn't
 endif()
 
 project(VVVVVV)
@@ -48,7 +50,10 @@ endif()
 
 # RPATH
 if(NOT WIN32)
-    if(APPLE)
+    if(CMAKE_SYSTEM_NAME STREQUAL "iOS")
+        set(BIN_LIBROOT "Frameworks")
+        set(BIN_RPATH "@executable_path/Frameworks")
+    elseif(APPLE)
         set(BIN_LIBROOT "osx")
         set(BIN_RPATH "@executable_path/osx")
     elseif(CMAKE_SIZEOF_VOID_P MATCHES "8")
@@ -128,6 +133,9 @@ endif()
 if(GOG)
     list(APPEND VVV_C_SRC src/GOGNetwork.c)
 endif()
+if(CMAKE_SYSTEM_NAME STREQUAL "iOS")
+    list(APPEND VVV_C_SRC src/SDL_uikit_main.c)
+endif()
 
 set(VVV_SRC ${VVV_CXX_SRC} ${VVV_C_SRC})
 
@@ -136,6 +144,30 @@ if(WIN32)
     add_executable(VVVVVV WIN32 ${VVV_SRC} icon.rc)
 elseif(ANDROID)
     add_library(VVVVVV SHARED ${VVV_SRC})
+elseif(CMAKE_SYSTEM_NAME STREQUAL "iOS")
+    file(GLOB_RECURSE REPO_RESOURCES "fonts/*" "lang/*")
+
+    add_executable(VVVVVV MACOSX_BUNDLE ${VVV_SRC} ${DATA_ZIP} AppIcon.xcassets ${REPO_RESOURCES})
+    set_target_properties(VVVVVV PROPERTIES
+        XCODE_ATTRIBUTE_PRODUCT_BUNDLE_IDENTIFIER "com.distractionware.vvvvvvmobile"
+        XCODE_ATTRIBUTE_PRODUCT_NAME "VVVVVV"
+        XCODE_ATTRIBUTE_TARGETED_DEVICE_FAMILY "1,2" # iPhone, iPad
+        XCODE_ATTRIBUTE_CURRENT_PROJECT_VERSION "2.5"
+        XCODE_ATTRIBUTE_MARKETING_VERSION "2.5"
+        XCODE_ATTRIBUTE_ASSETCATALOG_COMPILER_APPICON_NAME AppIcon
+        XCODE_ATTRIBUTE_GENERATE_INFOPLIST_FILE YES
+        MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/Info.plist"
+        XCODE_ATTRIBUTE_INFOPLIST_KEY_LSSupportsOpeningDocumentsInPlace YES
+        XCODE_ATTRIBUTE_INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents YES
+        RESOURCE "${DATA_ZIP};AppIcon.xcassets"
+    )
+
+    foreach(REPO_FILE ${REPO_RESOURCES})
+        file(RELATIVE_PATH REPO_FILE_REL "${CMAKE_CURRENT_SOURCE_DIR}" ${REPO_FILE})
+        get_filename_component(REPO_FILE_DIR ${REPO_FILE_REL} DIRECTORY)
+        set_property(SOURCE ${REPO_FILE} PROPERTY MACOSX_PACKAGE_LOCATION "Resources/${REPO_FILE_DIR}")
+        source_group("Resources/${REPO_FILE_DIR}" FILES "${REPO_FILE}")
+    endforeach()
 else()
     add_executable(VVVVVV ${VVV_SRC})
 endif()
@@ -419,6 +451,15 @@ elseif (EMSCRIPTEN)
         target_compile_options(faudio-static PUBLIC -sUSE_SDL=2)
         target_link_libraries(faudio-static -sUSE_SDL=2)
     endif()
+elseif(DEFINED SDL2_FRAMEWORK)
+    message(STATUS "Using pre-defined SDL2 variable SDL2_FRAMEWORK")
+    target_include_directories(VVVVVV SYSTEM PRIVATE "$<BUILD_INTERFACE:${SDL2_FRAMEWORK}/Headers>")
+    target_link_libraries(VVVVVV ${SDL2_FRAMEWORK})
+    if(BUNDLE_DEPENDENCIES)
+        target_include_directories(faudio-static SYSTEM PRIVATE "$<BUILD_INTERFACE:${SDL2_FRAMEWORK}/Headers>")
+        target_link_libraries(faudio-static ${SDL2_FRAMEWORK})
+    endif()
+    set_target_properties(VVVVVV PROPERTIES XCODE_EMBED_FRAMEWORKS ${SDL2_FRAMEWORK})
 else()
     # Only try to autodetect if both SDL2 variables aren't explicitly set
     find_package(SDL2 CONFIG)

desktop_version/Info.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>UIFileSharingEnabled</key>
+	<true/>
+</dict>
+</plist>

desktop_version/VVVVVV-android/app/build.gradle

@@ -14,8 +14,8 @@ android {
     defaultConfig {
         minSdkVersion 29
         targetSdkVersion 34
-        versionCode 20004000
-        versionName "2.4"
+        versionCode 20005000
+        versionName "2.5"
         applicationId "air.com.distractionware.vvvvvvmobile"
         externalNativeBuild {
             cmake {

desktop_version/src/ButtonGlyphs.cpp

@@ -178,7 +178,7 @@ bool BUTTONGLYPHS_keyboard_is_available(void)
         return true;
     }
 
-#ifdef __ANDROID__
+#if defined(__ANDROID__) || defined(TARGET_OS_IPHONE)
     return false;
 #else
     return !SDL_GetHintBoolean("SteamDeck", SDL_FALSE);

desktop_version/src/FileSystemUtils.cpp

@@ -1331,6 +1331,19 @@ static int PLATFORM_getOSDirectory(char* output, const size_t output_size)
     }
     SDL_snprintf(output, output_size, "%s/", externalStoragePath);
     return 1;
+#elif defined(TARGET_OS_IPHONE)
+    // (ab)use SDL APIs to get the path to the Documents folder without needing Objective-C
+    const char* prefsPath = SDL_GetPrefPath("", "");
+    if (prefsPath == NULL)
+    {
+        vlog_error(
+            "Could not get OS directory: %s",
+            SDL_GetError()
+        );
+        return 0;
+    }
+    SDL_snprintf(output, output_size, "%s/../../Documents/", prefsPath);
+    return 1;
 #else
     const char* prefDir = PHYSFS_getPrefDir("distractionware", "VVVVVV");
     if (prefDir == NULL)

desktop_version/src/Game.cpp

@@ -377,7 +377,7 @@ void Game::init(void)
     screenshot_border_timer = 0;
     screenshot_saved_success = false;
 
-#ifdef __ANDROID__
+#if defined(__ANDROID__) || defined(TARGET_OS_IPHONE)
     checkpoint_saving = true;
 #else
     checkpoint_saving = false;

desktop_version/src/SDL_uikit_main.c

@@ -0,0 +1,23 @@
+/*
+    SDL_uikit_main.c, placed in the public domain by Sam Lantinga  3/18/2019
+*/
+
+/* Include the SDL main definition header */
+#include "SDL_main.h"
+
+#if defined(__IPHONEOS__) || defined(__TVOS__)
+
+#ifndef SDL_MAIN_HANDLED
+#ifdef main
+#undef main
+#endif
+
+int main(int argc, char *argv[])
+{
+    return SDL_UIKitRunApp(argc, argv, SDL_main);
+}
+#endif /* !SDL_MAIN_HANDLED */
+
+#endif /* __IPHONEOS__ || __TVOS__ */
+
+/* vi: set ts=4 sw=4 expandtab: */

desktop_version/src/Screen.cpp

@@ -383,7 +383,7 @@ bool Screen::isForcedFullscreen(void)
      * If you're working on a tenfoot-only build, add a def that always
      * returns true!
      */
-#ifdef __ANDROID__
+#if defined(__ANDROID__) || defined(TARGET_OS_IPHONE)
     return true;
 #else
     return SDL_GetHintBoolean("SteamTenfoot", SDL_FALSE);

desktop_version/src/Vlogging.c

@@ -3,8 +3,9 @@
 #include <stdarg.h>
 #include <stdio.h>
 
-#ifdef __ANDROID__
+#if defined(__ANDROID__) || defined(TARGET_OS_IPHONE)
 // forward to SDL logging on Android, since stdout/stderr are /dev/null
+// they exist on iOS, but just get forwarded to the system log anyway, so might as well provide proper metadata
 #define VLOG_USE_SDL 1
 #endif
 

desktop_version/src/main.cpp

@@ -604,6 +604,8 @@ int main(int argc, char *argv[])
     /* We already do the button swapping in ButtonGlyphs, disable SDL's swapping */
     SDL_SetHintWithPriority(SDL_HINT_GAMECONTROLLER_USE_BUTTON_LABELS, "0", SDL_HINT_OVERRIDE);
 
+    SDL_SetHintWithPriority(SDL_HINT_ORIENTATIONS, "LandscapeLeft LandscapeRight", SDL_HINT_OVERRIDE);
+
     if(!FILESYSTEM_init(argv[0], baseDir, assetsPath, langDir, fontsDir))
     {
         vlog_error("Unable to initialize filesystem!");