Adjust CMakeLists.txt and program so that it compiles and runs on windows

.gitignore

@@ -1,3 +1,4 @@
 .cache/
 .vscode/
 build/
+thirdparty/SDL2

CMakeLists.txt

@@ -22,7 +22,17 @@ file(GLOB SHADERS ${SHADER_DIR}/*.vert
                   ${SHADER_DIR}/*.rmiss
                 )
 
-find_package(SDL2 REQUIRED CONFIG REQUIRED COMPONENTS SDL2)
+option(SDL2_NONSYSTEM "Use SDL2 from folder in source tree" OFF)
+
+if(SDL2_NONSYSTEM)
+    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/SDL2 ${CMAKE_CURRENT_BINARY_DIR}/SDL2 EXCLUDE_FROM_ALL)
+else()
+    find_package(SDL2 REQUIRED CONFIG REQUIRED COMPONENTS SDL2)
+    if(WIN32)
+        find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2main)
+    endif()
+endif()
+
 find_package(Vulkan REQUIRED COMPONENTS glslc)
 
 # Compile each shader
@@ -39,14 +49,26 @@ endForeach()
 add_custom_target(shaders ALL DEPENDS ${SPV_SHADERS})
 
 add_executable(${EXE_NAME} ${CMAKE_SOURCE_DIR}/src/main.cc ${PROGRAM_SOURCES} ${SHADERS})
+
+set_target_properties(${EXE_NAME}
+        PROPERTIES
+        CXX_STANDARD 17
+        CXX_STANDARD_REQUIRED ON
+        CXX_EXTENSIONS ON
+)
+
 target_include_directories(${EXE_NAME} PRIVATE ${CMAKE_SOURCE_DIR}/include)
 add_dependencies(${EXE_NAME} shaders)
 
-if ( CMAKE_COMPILER_IS_GNUCC )
+if(CMAKE_COMPILER_IS_GNUCC)
     target_compile_options(${EXE_NAME} PRIVATE -Wall -Wextra)
+elseif(MSVC)
+    target_compile_options(${EXE_NAME} PRIVATE /W4)
 endif()
-if ( MSVC )
-    target_compile_options(${EXE_NAME}  PRIVATE /W4)
+
+# Windows specific
+if(TARGET SDL2::SDL2main)
+    target_link_libraries(${EXE_NAME} PRIVATE SDL2::SDL2main)
 endif()
 
 # Linking

src/main.cc

@@ -3,7 +3,7 @@
 #include <exception>
 
 int main() {
-    VulkanApp app(640, 480);
+    VulkanApp app(1024, 1024);
 
     try {
         app.init();

src/vulkanapp.cc

@@ -38,7 +38,13 @@ void DestroyDebugUtilsMessengerEXT(VkInstance instance,
 }
 
 const std::vector<uint8_t> readFile(const std::string& path) {
-    FILE *fd = fopen(path.c_str(), "rb");
+    FILE *fd = nullptr;
+#if _MSC_VER
+    fopen_s(&fd, path.c_str(), "rb");
+#else
+    fd = fopen(path.c_str(), "rb");
+#endif
+
     long fileSize = 0;
     std::vector<uint8_t> buf;
 
@@ -709,8 +715,8 @@ void VulkanApp::createGraphicsPipeline() {
                            VK_NULL_HANDLE,
                          1,
                             &pipelineInfo,
-                                        nullptr,
-                                        &mGraphicsPipeline) != VK_SUCCESS) {
+                              nullptr,
+                              &mGraphicsPipeline) != VK_SUCCESS) {
         throw std::runtime_error("Could not create Vulkan graphics pipeline!");
     }
 
@@ -794,7 +800,7 @@ void VulkanApp::createSyncObjects() {
 }
 
 bool VulkanApp::checkDeviceExtensionSupport(VkPhysicalDevice device) {
-    uint32_t extensionCount;
+    uint32_t extensionCount = 0;
     vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, nullptr);
 
     std::vector<VkExtensionProperties> availableExtensions(extensionCount);
@@ -810,7 +816,7 @@ bool VulkanApp::checkDeviceExtensionSupport(VkPhysicalDevice device) {
 }
 
 bool VulkanApp::checkValidationLayerSupport() {
-    uint32_t layerCount;
+    uint32_t layerCount = 0;
     vkEnumerateInstanceLayerProperties(&layerCount, nullptr);
 
     std::vector<VkLayerProperties> availableLayers(layerCount);
@@ -861,8 +867,6 @@ void VulkanApp::loop() {
 
     mActive = true;
 
-    //SDL_Renderer *rend = SDL_CreateRenderer(mWin, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
-
     // Main loop
     while(mActive) {
         while(SDL_PollEvent(&mEvent)) {
@@ -890,16 +894,10 @@ void VulkanApp::loop() {
             }
         }
 
-        //SDL_SetRenderDrawColor(rend, 255, 0, 0, 255);
-        //SDL_RenderClear(rend);
-
-        //SDL_RenderPresent(rend);
-
         if(!mMinimized) drawFrame();
     }
 
     vkDeviceWaitIdle(mLogicalDevice);
-    //SDL_DestroyRenderer(rend);
 }
 
 void VulkanApp::cleanup() {