dfinput: only accept axis input when the current axis position is off enough from previous or initial position in config dialog box.

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@55344 e17a0e51-4ae3-4d35-97c3-1a29b211df97

4 files changed, 32 insertions, 4 deletions

diff --git a/macosx/plugins/DFInput/DFInput.xcodeproj/project.pbxproj b/macosx/plugins/DFInput/DFInput.xcodeproj/project.pbxproj
index 416142b2..35a8d87e 100644
--- a/macosx/plugins/DFInput/DFInput.xcodeproj/project.pbxproj
+++ b/macosx/plugins/DFInput/DFInput.xcodeproj/project.pbxproj
@@ -516,6 +516,7 @@
 					../../../libpcsxcore,
 					../..,
 					../../../plugins/dfinput,
+					../../../plugins/dfinput,
 					../../../../plugins/dfinput,
 					./SDL,
 					./SDL/include,
diff --git a/macosx/plugins/DFInput/macsrc/MappingCell.m b/macosx/plugins/DFInput/macsrc/MappingCell.m
index 812adf42..0fb43bd1 100644
--- a/macosx/plugins/DFInput/macsrc/MappingCell.m
+++ b/macosx/plugins/DFInput/macsrc/MappingCell.m
@@ -48,6 +48,8 @@
 	/* delay for a little while to allow user to release the button pressed to activate the element */
 	[NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.15]];
 
+	InitAxisPos(whichPad);
+
 	/* wait for 10 seconds for user to press a key */
 	for (i = 0; i < 10; i++) {
 		[NSApp runModalSession:session];
diff --git a/macosx/plugins/DFInput/macsrc/cfg.c b/macosx/plugins/DFInput/macsrc/cfg.c
index f9b897b8..9465426c 100644
--- a/macosx/plugins/DFInput/macsrc/cfg.c
+++ b/macosx/plugins/DFInput/macsrc/cfg.c
@@ -559,6 +559,28 @@ int CheckKeyDown() {
 	return 0;
 }
 
+static Sint16 InitialAxisPos[256], PrevAxisPos[256];
+
+#define NUM_AXES(js) (SDL_JoystickNumAxes(js) > 256 ? 256 : SDL_JoystickNumAxes(js))
+
+void InitAxisPos(int padnum) {
+	int i;
+	SDL_Joystick *js;
+
+	if (g.cfg.PadDef[padnum].DevNum >= 0) {
+		js = SDL_JoystickOpen(g.cfg.PadDef[padnum].DevNum);
+		SDL_JoystickEventState(SDL_IGNORE);
+	} else return;
+
+	SDL_JoystickUpdate();
+
+	for (i = 0; i < NUM_AXES(js); i++) {
+		InitialAxisPos[i] = PrevAxisPos[i] = SDL_JoystickGetAxis(js, i);
+	}
+
+	SDL_JoystickClose(js);
+}
+
 int ReadDKeyEvent(int padnum, int key) {
 	SDL_Joystick *js;
 	int i, changed = 0, t;
@@ -585,14 +607,15 @@ int ReadDKeyEvent(int padnum, int key) {
 				}
 			}
 
-			for (i = 0; i < SDL_JoystickNumAxes(js); i++) {
+			for (i = 0; i < NUM_AXES(js); i++) {
 				axis = SDL_JoystickGetAxis(js, i);
-				if (abs(axis) > 16383) {
+				if (abs(axis) > 16383 && (abs(axis - PrevAxisPos[i]) > 4096 || abs(axis - InitialAxisPos[i]) > 4096)) {
 					g.cfg.PadDef[padnum].KeyDef[key].JoyEvType = AXIS;
 					g.cfg.PadDef[padnum].KeyDef[key].J.Axis = (i + 1) * (axis > 0 ? 1 : -1);
 					changed = 1;
 					goto end;
 				}
+				PrevAxisPos[i] = axis;
 			}
 
 			for (i = 0; i < SDL_JoystickNumHats(js); i++) {
@@ -667,14 +690,15 @@ int ReadAnalogEvent(int padnum, int analognum, int analogdir) {
 				}
 			}
 
-			for (i = 0; i < SDL_JoystickNumAxes(js); i++) {
+			for (i = 0; i < NUM_AXES(js); i++) {
 				axis = SDL_JoystickGetAxis(js, i);
-				if (abs(axis) > 16383) {
+				if (abs(axis) > 16383 && (abs(axis - PrevAxisPos[i]) > 4096 || abs(axis - InitialAxisPos[i]) > 4096)) {
 					g.cfg.PadDef[padnum].AnalogDef[analognum][analogdir].JoyEvType = AXIS;
 					g.cfg.PadDef[padnum].AnalogDef[analognum][analogdir].J.Axis = (i + 1) * (axis > 0 ? 1 : -1);
 					changed = 1;
 					goto end;
 				}
+				PrevAxisPos[i] = axis;
 			}
 
 			for (i = 0; i < SDL_JoystickNumHats(js); i++) {
diff --git a/macosx/plugins/DFInput/macsrc/cfg.h b/macosx/plugins/DFInput/macsrc/cfg.h
index 232ed9c6..99bc103d 100644
--- a/macosx/plugins/DFInput/macsrc/cfg.h
+++ b/macosx/plugins/DFInput/macsrc/cfg.h
@@ -23,6 +23,7 @@
 
 void GetKeyDescription(char *buf, int joynum, int key);
 void GetAnalogDescription(char *buf, int joynum, int analognum, int dir);
+void InitAxisPos(int padnum);
 int ReadDKeyEvent(int padnum, int key);
 int ReadAnalogEvent(int padnum, int analognum, int analogdir);