Improve response to slow finger motion

CMakeLists.txt

@@ -382,6 +382,7 @@ set(LDFLAGS
         freetype
         ssl
         crypto
+        mikmod
         )
 
 if (BUILD_DEBUG)

README.MD

@@ -95,6 +95,10 @@ make enigma.vpk -j10
 
 Changelog
 =====
+1.10
+
+- Improve response to slow finger motion
+
 1.09
 
 - Improve controls with bluetooth mouse by re-compiling with latest SDL-Vita

src/psp2/psp2_touch.c

@@ -26,6 +26,8 @@ int mainMenu_touchControls = 2; // always enable rear_touch for now
 extern int lastmx;
 extern int lastmy;
 extern int insideMenu;
+static int hiresdx = 0;
+static int hiresdy = 0;
 
 enum {
 	MAX_NUM_FINGERS = 3, // number of fingers to track per panel
@@ -346,14 +348,6 @@ void psp2ProcessFingerMotion(TouchEvent *event) {
 	}
 
 	if (numFingersDown >= 1) {
-		int x = lastmx;
-		int y = lastmy;
-		int xrel = (int)(event->tfinger.dx * 960.0);
-		int yrel = (int)(event->tfinger.dy * 544.0);
-
-		x = lastmx + (int)(event->tfinger.dx * 960.0);
-		y = lastmy + (int)(event->tfinger.dy * 544.0);
-
 		// If we are starting a multi-finger drag, start holding down the mouse button
 		if (numFingersDown >= 2) {
 			if (!_multiFingerDragging[port]) {
@@ -404,16 +398,29 @@ void psp2ProcessFingerMotion(TouchEvent *event) {
 			}
 		}
 		if (updatePointer) {
-			if (insideMenu) {
-				SDL_WarpMouse(x, y);
-			} else {
-				SDL_Event ev0;
-				ev0.type = SDL_MOUSEMOTION;
-				ev0.motion.x = x;
-				ev0.motion.y = y;
-				ev0.motion.xrel = xrel;
-				ev0.motion.yrel = yrel;
-				SDL_PushEvent(&ev0);
+			const int slowdown = 16;
+			hiresdx += (int)(event->tfinger.dx * 960.0 * slowdown);
+			hiresdy += (int)(event->tfinger.dy * 544.0 * slowdown);
+			int xrel = hiresdx / slowdown;
+			int yrel = hiresdy / slowdown;
+
+			if (xrel || yrel) {
+				int x = lastmx + xrel;
+				int y = lastmy + yrel;
+				if (insideMenu) {
+					SDL_WarpMouse(x, y);
+				} else {
+					SDL_Event ev0;
+					ev0.type = SDL_MOUSEMOTION;
+					ev0.motion.x = x;
+					ev0.motion.y = y;
+					ev0.motion.xrel = xrel;
+					ev0.motion.yrel = yrel;
+					SDL_PushEvent(&ev0);
+				}
+
+				hiresdx %= slowdown;
+				hiresdy %= slowdown;
 			}
 		}
 	}