Make graphics modes configurable (#44)

* Make graphics modes configurable

[devilutionx]
scale quality=2
fullscreen=1
grab input=1

* Update dx.cpp

SourceX/DiabloUI/diabloui.cpp

@@ -819,4 +819,24 @@ void DrawMouse()
 	DrawArt(MouseX, MouseY, &ArtCursor);
 }
 
+/**
+ * @brief Get int from ini, if not found the provided value will be added to the ini instead
+ */
+void DvlIntSetting(const char *valuename, int *value)
+{
+	if (!SRegLoadValue("devilutionx", valuename, 0, value)) {
+		SRegSaveValue("devilutionx", valuename, 0, *value);
+	}
+}
+
+/**
+ * @brief Get string from ini, if not found the provided value will be added to the ini instead
+ */
+void DvlStringSetting(const char *valuename, char *string, int len)
+{
+	if (!SRegLoadString("devilutionx", valuename, 0, string, len)) {
+		SRegSaveString("devilutionx", valuename, 0, string);
+	}
+}
+
 }

SourceX/DiabloUI/diabloui.h

@@ -118,4 +118,7 @@ void UiRender();
 void UiRenderItems(UI_Item *items, int size);
 void WordWrap(UI_Item *item);
 
+void DvlIntSetting(const char *valuename, int *value);
+void DvlStringSetting(const char *valuename, char *string, int len);
+
 }

SourceX/dx.cpp

@@ -358,7 +358,10 @@ void dx_init(HWND hWnd)
 		return;
 	}
 
-	SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "2");
+	char scaleQuality[2] = "2";
+	DvlStringSetting("scaling quality", scaleQuality, 2);
+
+	SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, scaleQuality);
 	if (SDL_RenderSetLogicalSize(renderer, SCREEN_WIDTH, SCREEN_HEIGHT) != 0) {
 		SDL_Log("SDL_RenderSetLogicalSize: %s\n", SDL_GetError());
 		return;

SourceX/miniwin/misc.cpp

@@ -282,10 +282,15 @@ HWND CreateWindowExA(
 	}
 	atexit(SDL_Quit);
 
-	int flags = SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_INPUT_GRABBED;
-	if (!fullscreen) {
-		flags = SDL_WINDOW_RESIZABLE;
+	DvlIntSetting("fullscreen", &fullscreen);
+	int flags = fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : SDL_WINDOW_RESIZABLE;
+
+	int grabInput = 1;
+	DvlIntSetting("grab input", &grabInput);
+	if (grabInput) {
+		flags |= SDL_WINDOW_INPUT_GRABBED;
 	}
+
 	window = SDL_CreateWindow(lpWindowName, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, nWidth, nHeight, flags);
 	atexit(FakeWMDestroy);