fix various minor issues causing compilation failure with clang (#567)

- Include order and forward decls were breaking button.h because a
declared but not defined struct can't be initiated (honestly this file
was cooked, crazy include order).
- `MAXINT` is GCC specific, `INT_MAX` is portable.
- InterlockedDecrement takes a LONG, not ULONG
- an imgui printf-style call using a direct string instead of %s (let's
ignore the fact that it's actually safe based on how the str is
constructed)
- missing `override` on a virtual subclass
- `CALLBACK` on a lambda threw me for a loop, but I believe moving it
after the arg list is the correct approach (see if it builds on gcc I
guess)
- `std::result_of` was removed in C++20, which the project is built with

src/spice2x/cfg/api.h

@@ -6,24 +6,20 @@
 #include <windows.h>
 #include "option.h"
 
+#include "button.h"
+#include "analog.h"
+#include "light.h"
+
 namespace rawinput {
     class RawInputManager;
     struct Device;
 }
 
-class Button;
-class Analog;
-class Light;
 class Game;
 class Option;
 
 namespace GameAPI {
     namespace Buttons {
-        enum State {
-            BUTTON_PRESSED = true,
-            BUTTON_NOT_PRESSED = false
-        };
-
         /**
          * Parses the config and returns the buttons set by the user.
          *
@@ -152,7 +148,3 @@ namespace GameAPI {
         void sortOptions(std::vector<Option> &, const std::vector<OptionDefinition> &);
     }
 }
-
-#include "button.h"
-#include "analog.h"
-#include "light.h"

src/spice2x/cfg/button.h

@@ -1,15 +1,23 @@
 #pragma once
 
+#include <cstdint>
 #include <string>
 #include <utility>
 #include <vector>
 
-#include "api.h"
-
 namespace rawinput {
     class RawInputManager;
 }
 
+namespace GameAPI {
+    namespace Buttons {
+        enum State {
+            BUTTON_PRESSED = true,
+            BUTTON_NOT_PRESSED = false
+        };
+    }
+}
+
 enum ButtonAnalogType {
     BAT_NONE = 0,
     BAT_POSITIVE = 1,

src/spice2x/games/iidx/iidx.cpp

@@ -818,7 +818,7 @@ namespace games::iidx {
     }
 
     bool is_tdj_fhd() {
-        return TDJ_MODE && avs::game::is_ext(2022101900, MAXINT);
+        return TDJ_MODE && avs::game::is_ext(2022101900, INT_MAX);
     }
 
     void apply_audio_hacks() {
@@ -886,7 +886,7 @@ namespace games::iidx {
         // only do this if NOT wasapi (as opposed to checking if it's asio)
         // the patch is only really needed for (some) non-XONAR devices but since people sometimes disguise
         // other devices as a XONAR, don't check for the exact string (common ASIO workaround for INF)
-        if (avs::game::is_ext(2024090100, MAXINT) &&
+        if (avs::game::is_ext(2024090100, INT_MAX) &&
             !(SOUND_OUTPUT_DEVICE_IN_EFFECT.has_value() &&
               SOUND_OUTPUT_DEVICE_IN_EFFECT.value() == "wasapi")) {
 

src/spice2x/games/iidx/local_camera.h

@@ -89,7 +89,7 @@ namespace games::iidx {
     protected:
         virtual ~IIDXLocalCamera() {};
 
-        ULONG m_nRefCount;
+        LONG m_nRefCount;
         CRITICAL_SECTION m_critsec;
 
         std::string m_name;

src/spice2x/hooks/graphics/backends/d3d9/d3d9_backend.cpp

@@ -278,7 +278,7 @@ static bool is_dx9_on_12_enabled() {
     }
 
     if (GRAPHICS_9_ON_12_STATE == DX9ON12_FORCE_ON) {
-        if (avs::game::is_model("LDJ") && avs::game::is_ext(2023091500, MAXINT)) {
+        if (avs::game::is_model("LDJ") && avs::game::is_ext(2023091500, INT_MAX)) {
             deferredlogs::defer_error_messages({
                 "dx9on12 was force enabled by user (-dx9on12)",
                 "    IIDX31+ is known to be incompatible with DX 9on12, leading to blank screen or crashes",

src/spice2x/hooks/graphics/backends/d3d9/d3d9_device.cpp

@@ -593,7 +593,7 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3DDevice9::UpdateTexture(
     WRAP_DEBUG;
 
     if (CUSTOM_RESET) {
-#ifdef __GNUC__
+#if defined(__GNUC__) && !defined(__clang__)
 
         // Do a pointer compare rather than `QueryInterface` because it is a lot cheaper than incrementing
         // the reference count

src/spice2x/overlay/windows/config.cpp

@@ -3182,7 +3182,7 @@ namespace overlay::windows {
         } else if (filter != nullptr) {
             cat = "Search results";
         }
-        ImGui::TextColored(ImVec4(1.f, 0.7f, 0, 1), cat.c_str());
+        ImGui::TextColored(ImVec4(1.f, 0.7f, 0, 1), "%s", cat.c_str());
         ImGui::Separator();
 
         // render table

src/spice2x/overlay/windows/iopanel.h

@@ -2,6 +2,7 @@
 
 #include "overlay/window.h"
 #include "cfg/button.h"
+#include "cfg/light.h"
 
 namespace overlay::windows {
 

src/spice2x/overlay/windows/patch_manager.cpp

@@ -235,9 +235,9 @@ namespace overlay::windows {
 #ifdef _MSC_VER
                 static_cast<PLDR_DLL_NOTIFICATION_FUNCTION>([]
 #else
-                                                            [] CALLBACK
+                                                            []
 #endif
-            (ULONG reason, PCLDR_DLL_NOTIFICATION_DATA data, PVOID ctx) {
+            (ULONG reason, PCLDR_DLL_NOTIFICATION_DATA data, PVOID ctx) CALLBACK {
                 if (reason == LDR_DLL_NOTIFICATION_REASON_LOADED) {
                     auto const dll = strtolower(std::filesystem::path({
                         data->Loaded.FullDllName->Buffer,

src/spice2x/overlay/windows/screen_resize.h

@@ -10,7 +10,7 @@ namespace overlay::windows {
         ~ScreenResize() override;
 
         void build_content() override;
-        void update();
+        void update() override;
 
     private:
         size_t toggle_screen_resize = ~0u;

src/spice2x/util/threadpool.h

@@ -56,8 +56,8 @@ public:
 
     template<class T, class... Args>
     auto add(T&& func, Args&&... args)
-    -> std::future<typename std::result_of<T(Args...)>::type> {
-        using ret_t = typename std::result_of<T(Args...)>::type;
+    -> std::future<typename std::invoke_result<T, Args...>::type> {
+        using ret_t = typename std::invoke_result<T, Args...>::type;
         auto task = std::make_shared<std::packaged_task<ret_t()>>(
                 std::bind(std::forward<T>(func), std::forward<Args>(args)...));
         std::future<ret_t> fut = task->get_future();