sdvx, touch: hook Windows touch API when main monitor is rotated 270 degrees (portrait flipped) (#558)

## Link to GitHub Issue, if one exists
n/a

## Description of change
Game expects primary monitor to be in 90 deg rotation, and does the
touch calculation accordingly.

If the user does 270 deg rotation ("portrait, flipped") then the game's
touch calculation is flipped upside down. Detect this and provide the
fixed up values in the touch hook.

## Testing
Tested with SDVX in 90 deg, 270 deg rotation, and 1080p, forced 1440p.

src/spice2x/games/sdvx/sdvx.cpp

@@ -21,8 +21,9 @@
 #include "util/socd_cleaner.h"
 #include "util/time.h"
 #include "util/libutils.h"
-#include "misc/wintouchemu.h"
 #include "misc/eamuse.h"
+#include "misc/nativetouchhook.h"
+#include "misc/wintouchemu.h"
 #include "bi2x_hook.h"
 #include "camera.h"
 #include "io.h"
@@ -416,9 +417,11 @@ namespace games::sdvx {
             }
 
             if (is_valkyrie_model()) {
-                // hook touch window
-                // in windowed mode, game can accept mouse input on the second screen
-                if (!NATIVETOUCH && !GRAPHICS_WINDOWED) {
+                if (NATIVETOUCH) {
+                    nativetouchhook::hook(avs::game::DLL_INSTANCE);
+                } else if (!NATIVETOUCH && !GRAPHICS_WINDOWED) {
+                    // hook touch window
+                    // in windowed mode, game can accept mouse input on the second screen
                     wintouchemu::FORCE = true;
                     wintouchemu::INJECT_MOUSE_AS_WM_TOUCH = true;
                     wintouchemu::hook_title_ends(

src/spice2x/misc/nativetouchhook.cpp

@@ -2,7 +2,10 @@
 // mingw otherwise doesn't load touch stuff
 #define _WIN32_WINNT 0x0601
 
+#include "avs/game.h"
 #include "wintouchemu.h"
+#include "rawinput/touch.h"
+#include "hooks/graphics/graphics.h"
 
 #include "util/detour.h"
 #include "util/logging.h"
@@ -63,6 +66,11 @@ namespace nativetouchhook {
         point->cyContact = 0;
     }
 
+    static void flip_touch_points(PTOUCHINPUT point) {
+        point->x = rawinput::touch::DISPLAY_SIZE_X * 100 - point->x;
+        point->y = rawinput::touch::DISPLAY_SIZE_Y * 100 - point->y;
+    }
+
     static BOOL WINAPI GetTouchInputInfoHook(
         HTOUCHINPUT hTouchInput, UINT cInputs, PTOUCHINPUT pInputs, int cbSize) {
 
@@ -72,9 +80,28 @@ namespace nativetouchhook {
             return result;
         }
 
+        bool flip_values = false;
+        if (avs::game::is_model("KFC") && rawinput::touch::DISPLAY_INITIALIZED) {
+            log_debug(
+                "touch::native", "DISPLAY_ORIENTATION = {}, DISPLAY_SIZE_X = {}, DISPLAY_SIZE_Y = {}",
+                rawinput::touch::DISPLAY_ORIENTATION,
+                rawinput::touch::DISPLAY_SIZE_X,
+                rawinput::touch::DISPLAY_SIZE_Y);
+            if (rawinput::touch::DISPLAY_ORIENTATION == DMDO_270) {
+                flip_values = true;
+            }
+        }
+
         for (size_t i = 0; i < cInputs; i++) {
             PTOUCHINPUT point = &pInputs[i];
-            strip_contact_size(point);
+
+            if (avs::game::is_model("LDJ")) {
+                strip_contact_size(point);
+            }
+
+            if (flip_values) {
+                flip_touch_points(point);
+            }
         }
         
         return result;

src/spice2x/rawinput/touch.cpp

@@ -26,10 +26,10 @@ namespace rawinput::touch {
     bool INVERTED = false;
 
     // state
-    static bool DISPLAY_INITIALIZED = false;
-    static DWORD DISPLAY_ORIENTATION = DMDO_DEFAULT;
-    static long DISPLAY_SIZE_X = 1920L;
-    static long DISPLAY_SIZE_Y = 1080L;
+    DWORD DISPLAY_ORIENTATION = DMDO_DEFAULT;
+    long DISPLAY_SIZE_X = 1920L;
+    long DISPLAY_SIZE_Y = 1080L;
+    bool DISPLAY_INITIALIZED = false;
 
     bool is_touchscreen(Device *device) {
 

src/spice2x/rawinput/touch.h

@@ -9,6 +9,12 @@ namespace rawinput::touch {
     extern bool DISABLED;
     extern bool INVERTED;
 
+    // global state
+    extern DWORD DISPLAY_ORIENTATION;
+    extern long DISPLAY_SIZE_X;
+    extern long DISPLAY_SIZE_Y;
+    extern bool DISPLAY_INITIALIZED;
+
     bool is_touchscreen(Device *device);
     void enable(Device *device);
     void disable(Device *device);