From b0a4f70fa9e035b3afd0330ef41aedfd5e6c488f Mon Sep 17 00:00:00 2001
From: ts-korhonen <teemu.s.korhonen@gmail.com>
Date: Thu, 2 Dec 2021 19:35:08 +0200
Subject: [PATCH] Tweaks to support QT on Windows

---
 src/qt/qt_main.cpp       |  1 +
 src/qt/qt_mainwindow.cpp |  4 ++-
 src/qt/qt_platform.cpp   | 66 ++++++++++++++++++++++++++++++++++++++--
 src/qt/qt_ui.cpp         |  4 +--
 4 files changed, 70 insertions(+), 5 deletions(-)

diff --git a/src/qt/qt_main.cpp b/src/qt/qt_main.cpp
index f011fd9f7..536370371 100644
--- a/src/qt/qt_main.cpp
+++ b/src/qt/qt_main.cpp
@@ -11,6 +11,7 @@
 
 #include <thread>
 
+#define SDL_MAIN_HANDLED
 #include "SDL.h"
 #include "SDL_mutex.h"
 #include "SDL_timer.h"
diff --git a/src/qt/qt_mainwindow.cpp b/src/qt/qt_mainwindow.cpp
index 8e5b5a450..09f2614e2 100644
--- a/src/qt/qt_mainwindow.cpp
+++ b/src/qt/qt_mainwindow.cpp
@@ -622,7 +622,9 @@ static std::array<uint32_t, 256>& selected_keycode = x11_to_xt_base;
 
 uint16_t x11_keycode_to_keysym(uint32_t keycode)
 {
-#ifdef __APPLE__
+#if defined(Q_OS_WINDOWS)
+    return keycode & 0xFFFF;
+#elif defined(__APPLE__)
     return darwin_to_xt[keycode];
 #else
     static Display* x11display = nullptr;
diff --git a/src/qt/qt_platform.cpp b/src/qt/qt_platform.cpp
index 6be563814..357d9e0c3 100644
--- a/src/qt/qt_platform.cpp
+++ b/src/qt/qt_platform.cpp
@@ -44,6 +44,9 @@ private:
 };
 
 extern "C" {
+#ifdef Q_OS_WINDOWS
+#include <windows.h>
+#endif
 #include <86box/86box.h>
 #include <86box/device.h>
 #include <86box/gameport.h>
@@ -87,7 +90,11 @@ do_stop(void)
 
 void plat_get_exe_name(char *s, int size)
 {
-    CharPointer(s, size) = QCoreApplication::applicationFilePath().toUtf8();
+    QByteArray exepath_temp = QCoreApplication::applicationDirPath().toLocal8Bit();
+
+    memcpy(s, exepath_temp.data(), std::min(exepath_temp.size(),size));
+
+    plat_path_slash(s);
 }
 
 uint32_t
@@ -140,6 +147,8 @@ plat_fopen(const char *path, const char *mode)
         return nullptr;
     }
     */
+
+/* Not sure if any this is necessary, fopen seems to work on Windows -Manaatti
 #ifdef Q_OS_WINDOWS
     wchar_t *pathw, *modew;
     int len;
@@ -165,8 +174,9 @@ plat_fopen(const char *path, const char *mode)
     }
 #endif
 #ifdef Q_OS_UNIX
+*/
     return fopen(path, mode);
-#endif
+//#endif
 }
 
 FILE *
@@ -216,11 +226,23 @@ plat_get_extension(char *s)
 char *
 plat_get_filename(char *s)
 {
+#ifdef Q_OS_WINDOWS
+    int c = strlen(s) - 1;
+
+    while (c > 0) {
+	if (s[c] == '/' || s[c] == '\\')
+	   return(&s[c+1]);
+       c--;
+    }
+
+    return(s);
+#else
     auto idx = QByteArray::fromRawData(s, strlen(s)).lastIndexOf(QDir::separator().toLatin1());
     if (idx >= 0) {
         return s+idx+1;
     }
     return s;
+#endif
 }
 
 int
@@ -292,7 +314,11 @@ plat_mmap(size_t size, uint8_t executable)
 void
 plat_munmap(void *ptr, size_t size)
 {
+#if defined Q_OS_WINDOWS
+    VirtualFree(ptr, 0, MEM_RELEASE);
+#else
     munmap(ptr, size);
+#endif
 }
 
 void
@@ -391,3 +417,39 @@ void endblit()
 }
 
 }
+
+#ifdef Q_OS_WINDOWS
+size_t mbstoc16s(uint16_t dst[], const char src[], int len)
+{
+    if (src == NULL) return 0;
+    if (len < 0) return 0;
+
+    size_t ret = MultiByteToWideChar(CP_UTF8, 0, src, -1, reinterpret_cast<LPWSTR>(dst), dst == NULL ? 0 : len);
+
+    if (!ret) {
+	return -1;
+    }
+
+    return ret;
+}
+
+size_t c16stombs(char dst[], const uint16_t src[], int len)
+{
+    if (src == NULL) return 0;
+    if (len < 0) return 0;
+
+    size_t ret = WideCharToMultiByte(CP_UTF8, 0, reinterpret_cast<LPCWCH>(src), -1, dst, dst == NULL ? 0 : len, NULL, NULL);
+
+    if (!ret) {
+	return -1;
+    }
+
+    return ret;
+}
+#endif
+
+int
+plat_chdir(char *path)
+{
+    return QDir::setCurrent(QString(path)) ? 0 : -1;
+}
diff --git a/src/qt/qt_ui.cpp b/src/qt/qt_ui.cpp
index c4de70282..9025d95da 100644
--- a/src/qt/qt_ui.cpp
+++ b/src/qt/qt_ui.cpp
@@ -62,8 +62,8 @@ void plat_mouse_capture(int on) {
 }
 
 int	ui_msgbox_header(int flags, void *header, void* message) {
-    if (header <= (void*)7168) header = plat_get_string(reinterpret_cast<long>(header));
-    if (message <= (void*)7168) message = plat_get_string(reinterpret_cast<long>(message));
+    if (header <= (void*)7168) header = plat_get_string((uintptr_t)header);
+    if (message <= (void*)7168) message = plat_get_string((uintptr_t)message);
 
     auto hdr = QString::fromWCharArray(reinterpret_cast<const wchar_t*>(header));
     auto msg = QString::fromWCharArray(reinterpret_cast<const wchar_t*>(message));