Mercurial > sdl-ios-xcode

annotate src/events/SDL_gesture.c @ 5166:d72793305335

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Making the API simpler, moved the surface drawing functions to the software renderer.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 03 Feb 2011 02:45:29 -0800
parents a4032241deb5
children b530ef003506
rev   line source
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
1 /*
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
3 Copyright (C) 1997-2010 Sam Lantinga
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
4
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
9
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
13 Lesser General Public License for more details.
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
14
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
15 You should have received a copy of the GNU Lesser General Public
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
16 License along with this library; if not, write to the Free Software Founation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
17
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
18 Sam Lantinga
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
19 slouken@libsdl.org
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
20 */
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
21
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
22 #include "SDL_config.h"
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
23
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
24 /* General mouse handling code for SDL */
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
25
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
26 #include "SDL_events.h"
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
27 #include "SDL_events_c.h"
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
28 #include "SDL_gesture_c.h"
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
29
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
30 #include <memory.h>
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
31 #include <string.h>
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
32 #include <stdio.h>
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
33 #include <math.h>
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
34
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
35 //TODO: Replace with malloc
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
36
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
37 #define MAXPATHSIZE 1024
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
38
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
39
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
40
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
41
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
42 #define DOLLARNPOINTS 64
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
43 #define DOLLARSIZE 256
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
44
4684
f47c2640c667 Re-enabled dollar gesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4683
diff changeset
45 #define ENABLE_DOLLAR
f47c2640c667 Re-enabled dollar gesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4683
diff changeset
46
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
47 #define PHI 0.618033989
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
48
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
49 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
50 float x,y;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
51 } SDL_FloatPoint;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
52
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
53 typedef struct {
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
54 float length;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
55
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
56 int numPoints;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
57 SDL_FloatPoint p[MAXPATHSIZE];
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
58 } SDL_DollarPath;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
59
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
60 typedef struct {
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
61 SDL_FloatPoint path[DOLLARNPOINTS];
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
62 unsigned long hash;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
63 } SDL_DollarTemplate;
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
64
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
65 typedef struct {
4678
f8431f66613d Added SDL_TouchID, SDL_FingerID, SDL_GestureID types. Converted to integer cioordinates (<- not working).
jimtla
parents: 4665
diff changeset
66 SDL_GestureID id;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
67 SDL_FloatPoint res;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
68 SDL_FloatPoint centroid;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
69 SDL_DollarPath dollarPath;
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
70 Uint16 numDownFingers;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
71
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
72 int numDollarTemplates;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
73 SDL_DollarTemplate *dollarTemplate;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
74
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
75 SDL_bool recording;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
76 } SDL_GestureTouch;
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
77
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
78 SDL_GestureTouch *SDL_gestureTouch;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
79 int SDL_numGestureTouches = 0;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
80 SDL_bool recordAll;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
81
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
82 #if 0
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
83 static void PrintPath(SDL_FloatPoint *path) {
4685
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
84 int i;
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
85 printf("Path:");
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
86 for(i=0;i<DOLLARNPOINTS;i++) {
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
87 printf(" (%f,%f)",path[i].x,path[i].y);
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
88 }
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
89 printf("\n");
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
90 }
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
91 #endif
4685
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
92
4678
f8431f66613d Added SDL_TouchID, SDL_FingerID, SDL_GestureID types. Converted to integer cioordinates (<- not working).
jimtla
parents: 4665
diff changeset
93 int SDL_RecordGesture(SDL_TouchID touchId) {
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
94 int i;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
95 if(touchId < 0) recordAll = SDL_TRUE;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
96 for(i = 0;i < SDL_numGestureTouches; i++) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
97 if((touchId < 0) || (SDL_gestureTouch[i].id == touchId)) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
98 SDL_gestureTouch[i].recording = SDL_TRUE;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
99 if(touchId >= 0)
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
100 return 1;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
101 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
102 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
103 return (touchId < 0);
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
104 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
105
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
106 unsigned long SDL_HashDollar(SDL_FloatPoint* points) {
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
107 unsigned long hash = 5381;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
108 int i;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
109 for(i = 0;i < DOLLARNPOINTS; i++) {
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
110 hash = ((hash<<5) + hash) + (unsigned long)points[i].x;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
111 hash = ((hash<<5) + hash) + (unsigned long)points[i].y;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
112 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
113 return hash;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
114 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
115
4665
c2493813a2f4 Merged changes
Jim Grandpre <jim.tla@gmail.com>
parents: 4664 4663
diff changeset
116
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
117 static int SaveTemplate(SDL_DollarTemplate *templ, SDL_RWops * src) {
4664
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
118 if(src == NULL) return 0;
4665
c2493813a2f4 Merged changes
Jim Grandpre <jim.tla@gmail.com>
parents: 4664 4663
diff changeset
119
4664
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
120
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
121 //No Longer storing the Hash, rehash on load
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
122 //if(SDL_RWops.write(src,&(templ->hash),sizeof(templ->hash),1) != 1) return 0;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
123
4682
4ba1048a324c Minimized functionality of gestureSDLTest.
Jim Grandpre <jim.tla@gmail.com>
parents: 4681
diff changeset
124 if(SDL_RWwrite(src,templ->path,
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
125 sizeof(templ->path[0]),DOLLARNPOINTS) != DOLLARNPOINTS)
4682
4ba1048a324c Minimized functionality of gestureSDLTest.
Jim Grandpre <jim.tla@gmail.com>
parents: 4681
diff changeset
126 return 0;
4ba1048a324c Minimized functionality of gestureSDLTest.
Jim Grandpre <jim.tla@gmail.com>
parents: 4681
diff changeset
127
4664
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
128 return 1;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
129 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
130
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
131
4664
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
132 int SDL_SaveAllDollarTemplates(SDL_RWops *src) {
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
133 int i,j,rtrn = 0;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
134 for(i = 0; i < SDL_numGestureTouches; i++) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
135 SDL_GestureTouch* touch = &SDL_gestureTouch[i];
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
136 for(j = 0;j < touch->numDollarTemplates; j++) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
137 rtrn += SaveTemplate(&touch->dollarTemplate[i],src);
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
138 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
139 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
140 return rtrn;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
141 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
142
4678
f8431f66613d Added SDL_TouchID, SDL_FingerID, SDL_GestureID types. Converted to integer cioordinates (<- not working).
jimtla
parents: 4665
diff changeset
143 int SDL_SaveDollarTemplate(SDL_GestureID gestureId, SDL_RWops *src) {
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
144 int i,j;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
145 for(i = 0; i < SDL_numGestureTouches; i++) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
146 SDL_GestureTouch* touch = &SDL_gestureTouch[i];
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
147 for(j = 0;j < touch->numDollarTemplates; j++) {
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
148 if(touch->dollarTemplate[i].hash == gestureId) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
149 return SaveTemplate(&touch->dollarTemplate[i],src);
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
150 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
151 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
152 }
4663
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
153 SDL_SetError("Unknown gestureId");
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
154 return -1;
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
155 }
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
156
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
157 //path is an already sampled set of points
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
158 //Returns the index of the gesture on success, or -1
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
159 static int SDL_AddDollarGesture(SDL_GestureTouch* inTouch,SDL_FloatPoint* path) {
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
160 SDL_DollarTemplate* dollarTemplate;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
161 SDL_DollarTemplate *templ;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
162 int i = 0;
4663
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
163 if(inTouch == NULL) {
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
164 if(SDL_numGestureTouches == 0) return -1;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
165 for(i = 0;i < SDL_numGestureTouches; i++) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
166 inTouch = &SDL_gestureTouch[i];
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
167
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
168 dollarTemplate =
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
169 (SDL_DollarTemplate *)SDL_realloc(inTouch->dollarTemplate,
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
170 (inTouch->numDollarTemplates + 1) *
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
171 sizeof(SDL_DollarTemplate));
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
172 if(!dollarTemplate) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
173 SDL_OutOfMemory();
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
174 return -1;
4663
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
175 }
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
176
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
177 inTouch->dollarTemplate = dollarTemplate;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
178
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
179 templ =
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
180 &inTouch->dollarTemplate[inTouch->numDollarTemplates];
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
181 SDL_memcpy(templ->path,path,DOLLARNPOINTS*sizeof(SDL_FloatPoint));
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
182 templ->hash = SDL_HashDollar(templ->path);
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
183 inTouch->numDollarTemplates++;
4663
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
184 }
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
185 return inTouch->numDollarTemplates - 1;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
186 } else {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
187 SDL_DollarTemplate* dollarTemplate =
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
188 ( SDL_DollarTemplate *)SDL_realloc(inTouch->dollarTemplate,
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
189 (inTouch->numDollarTemplates + 1) *
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
190 sizeof(SDL_DollarTemplate));
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
191 if(!dollarTemplate) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
192 SDL_OutOfMemory();
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
193 return -1;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
194 }
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
195
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
196 inTouch->dollarTemplate = dollarTemplate;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
197
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
198 templ =
4663
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
199 &inTouch->dollarTemplate[inTouch->numDollarTemplates];
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
200 SDL_memcpy(templ->path,path,DOLLARNPOINTS*sizeof(SDL_FloatPoint));
4663
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
201 templ->hash = SDL_HashDollar(templ->path);
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
202 inTouch->numDollarTemplates++;
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
203 return inTouch->numDollarTemplates - 1;
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
204 }
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
205 return -1;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
206 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
207
4678
f8431f66613d Added SDL_TouchID, SDL_FingerID, SDL_GestureID types. Converted to integer cioordinates (<- not working).
jimtla
parents: 4665
diff changeset
208 int SDL_LoadDollarTemplates(SDL_TouchID touchId, SDL_RWops *src) {
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
209 int i,loaded = 0;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
210 SDL_GestureTouch *touch = NULL;
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
211 if(src == NULL) return 0;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
212 if(touchId >= 0) {
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
213 for(i = 0;i < SDL_numGestureTouches; i++)
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
214 if(SDL_gestureTouch[i].id == touchId)
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
215 touch = &SDL_gestureTouch[i];
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
216 if(touch == NULL) return -1;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
217 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
218
4664
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
219 while(1) {
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
220 SDL_DollarTemplate templ;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
221
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
222 if(SDL_RWread(src,templ.path,sizeof(templ.path[0]),DOLLARNPOINTS) <
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
223 DOLLARNPOINTS) break;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
224
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
225 if(touchId >= 0) {
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
226 //printf("Adding loaded gesture to 1 touch\n");
4664
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
227 if(SDL_AddDollarGesture(touch,templ.path)) loaded++;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
228 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
229 else {
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
230 //printf("Adding to: %i touches\n",SDL_numGestureTouches);
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
231 for(i = 0;i < SDL_numGestureTouches; i++) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
232 touch = &SDL_gestureTouch[i];
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
233 //printf("Adding loaded gesture to + touches\n");
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
234 //TODO: What if this fails?
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
235 SDL_AddDollarGesture(touch,templ.path);
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
236 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
237 loaded++;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
238 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
239 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
240
4664
317a151b79ad Bug fixes, now using RWops instead of File pointers.
Jim Grandpre <jim.tla@gmail.com>
parents: 4659
diff changeset
241 return loaded;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
242 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
243
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
244
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
245 float dollarDifference(SDL_FloatPoint* points,SDL_FloatPoint* templ,float ang) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
246 // SDL_FloatPoint p[DOLLARNPOINTS];
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
247 float dist = 0;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
248 SDL_FloatPoint p;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
249 int i;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
250 for(i = 0; i < DOLLARNPOINTS; i++) {
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
251 p.x = (float)(points[i].x * SDL_cos(ang) - points[i].y * SDL_sin(ang));
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
252 p.y = (float)(points[i].x * SDL_sin(ang) + points[i].y * SDL_cos(ang));
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
253 dist += (float)(SDL_sqrt((p.x-templ[i].x)*(p.x-templ[i].x)+
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
254 (p.y-templ[i].y)*(p.y-templ[i].y)));
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
255 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
256 return dist/DOLLARNPOINTS;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
257
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
258 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
259
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
260 float bestDollarDifference(SDL_FloatPoint* points,SDL_FloatPoint* templ) {
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
261 //------------BEGIN DOLLAR BLACKBOX----------------//
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
262 //-TRANSLATED DIRECTLY FROM PSUDEO-CODE AVAILABLE AT-//
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
263 //-"http://depts.washington.edu/aimgroup/proj/dollar/"-//
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
264 double ta = -M_PI/4;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
265 double tb = M_PI/4;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
266 double dt = M_PI/90;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
267 float x1 = (float)(PHI*ta + (1-PHI)*tb);
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
268 float f1 = dollarDifference(points,templ,x1);
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
269 float x2 = (float)((1-PHI)*ta + PHI*tb);
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
270 float f2 = dollarDifference(points,templ,x2);
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
271 while(SDL_fabs(ta-tb) > dt) {
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
272 if(f1 < f2) {
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
273 tb = x2;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
274 x2 = x1;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
275 f2 = f1;
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
276 x1 = (float)(PHI*ta + (1-PHI)*tb);
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
277 f1 = dollarDifference(points,templ,x1);
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
278 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
279 else {
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
280 ta = x1;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
281 x1 = x2;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
282 f1 = f2;
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
283 x2 = (float)((1-PHI)*ta + PHI*tb);
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
284 f2 = dollarDifference(points,templ,x2);
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
285 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
286 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
287 /*
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
288 if(f1 <= f2)
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
289 printf("Min angle (x1): %f\n",x1);
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
290 else if(f1 > f2)
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
291 printf("Min angle (x2): %f\n",x2);
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
292 */
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
293 return SDL_min(f1,f2);
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
294 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
295
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
296 //DollarPath contains raw points, plus (possibly) the calculated length
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
297 int dollarNormalize(const SDL_DollarPath *path,SDL_FloatPoint *points) {
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
298 int i;
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
299 float interval;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
300 float dist;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
301 int numPoints = 0;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
302 SDL_FloatPoint centroid;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
303 float xmin,xmax,ymin,ymax;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
304 float ang;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
305 float w,h;
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
306 float length = path->length;
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
307
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
308 //Calculate length if it hasn't already been done
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
309 if(length <= 0) {
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
310 for(i=1;i<path->numPoints;i++) {
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
311 float dx = path->p[i ].x -
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
312 path->p[i-1].x;
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
313 float dy = path->p[i ].y -
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
314 path->p[i-1].y;
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
315 length += (float)(SDL_sqrt(dx*dx+dy*dy));
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
316 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
317 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
318
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
319 //Resample
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
320 interval = length/(DOLLARNPOINTS - 1);
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
321 dist = interval;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
322
4685
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
323 centroid.x = 0;centroid.y = 0;
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
324
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
325 //printf("(%f,%f)\n",path->p[path->numPoints-1].x,path->p[path->numPoints-1].y);
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
326 for(i = 1;i < path->numPoints;i++) {
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
327 float d = (float)(SDL_sqrt((path->p[i-1].x-path->p[i].x)*(path->p[i-1].x-path->p[i].x)+
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
328 (path->p[i-1].y-path->p[i].y)*(path->p[i-1].y-path->p[i].y)));
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
329 //printf("d = %f dist = %f/%f\n",d,dist,interval);
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
330 while(dist + d > interval) {
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
331 points[numPoints].x = path->p[i-1].x +
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
332 ((interval-dist)/d)*(path->p[i].x-path->p[i-1].x);
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
333 points[numPoints].y = path->p[i-1].y +
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
334 ((interval-dist)/d)*(path->p[i].y-path->p[i-1].y);
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
335 centroid.x += points[numPoints].x;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
336 centroid.y += points[numPoints].y;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
337 numPoints++;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
338
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
339 dist -= interval;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
340 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
341 dist += d;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
342 }
4685
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
343 if(numPoints < DOLLARNPOINTS-1) {
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
344 SDL_SetError("ERROR: NumPoints = %i\n",numPoints);
4685
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
345 return 0;
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
346 }
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
347 //copy the last point
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
348 points[DOLLARNPOINTS-1] = path->p[path->numPoints-1];
4685
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
349 numPoints = DOLLARNPOINTS;
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
350
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
351 centroid.x /= numPoints;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
352 centroid.y /= numPoints;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
353
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
354 //printf("Centroid (%f,%f)",centroid.x,centroid.y);
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
355 //Rotate Points so point 0 is left of centroid and solve for the bounding box
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
356 xmin = centroid.x;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
357 xmax = centroid.x;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
358 ymin = centroid.y;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
359 ymax = centroid.y;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
360
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
361 ang = (float)(SDL_atan2(centroid.y - points[0].y,
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
362 centroid.x - points[0].x));
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
363
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
364 for(i = 0;i<numPoints;i++) {
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
365 float px = points[i].x;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
366 float py = points[i].y;
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
367 points[i].x = (float)((px - centroid.x)*SDL_cos(ang) -
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
368 (py - centroid.y)*SDL_sin(ang) + centroid.x);
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
369 points[i].y = (float)((px - centroid.x)*SDL_sin(ang) +
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
370 (py - centroid.y)*SDL_cos(ang) + centroid.y);
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
371
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
372
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
373 if(points[i].x < xmin) xmin = points[i].x;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
374 if(points[i].x > xmax) xmax = points[i].x;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
375 if(points[i].y < ymin) ymin = points[i].y;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
376 if(points[i].y > ymax) ymax = points[i].y;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
377 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
378
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
379 //Scale points to DOLLARSIZE, and translate to the origin
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
380 w = xmax-xmin;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
381 h = ymax-ymin;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
382
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
383 for(i=0;i<numPoints;i++) {
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
384 points[i].x = (points[i].x - centroid.x)*DOLLARSIZE/w;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
385 points[i].y = (points[i].y - centroid.y)*DOLLARSIZE/h;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
386 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
387 return numPoints;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
388 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
389
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
390 float dollarRecognize(const SDL_DollarPath *path,int *bestTempl,SDL_GestureTouch* touch) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
391
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
392 SDL_FloatPoint points[DOLLARNPOINTS];
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
393 int numPoints = dollarNormalize(path,points);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
394 int i;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
395 float bestDiff = 10000;
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
396
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
397 //PrintPath(points);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
398 *bestTempl = -1;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
399 for(i = 0;i < touch->numDollarTemplates;i++) {
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
400 float diff = bestDollarDifference(points,touch->dollarTemplate[i].path);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
401 if(diff < bestDiff) {bestDiff = diff; *bestTempl = i;}
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
402 }
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
403 return bestDiff;
4663
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
404 }
56a2d70de945 Started trying to build gesture code for iPhone
Sam Lantinga <slouken@libsdl.org>
parents: 4659
diff changeset
405
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
406 int SDL_GestureAddTouch(SDL_Touch* touch) {
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
407 SDL_GestureTouch *gestureTouch = (SDL_GestureTouch *)SDL_realloc(SDL_gestureTouch,
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
408 (SDL_numGestureTouches + 1) *
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
409 sizeof(SDL_GestureTouch));
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
410
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
411 if(!gestureTouch) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
412 SDL_OutOfMemory();
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
413 return -1;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
414 }
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
415
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
416 SDL_gestureTouch = gestureTouch;
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
417
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
418 SDL_gestureTouch[SDL_numGestureTouches].res.x = touch->xres;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
419 SDL_gestureTouch[SDL_numGestureTouches].res.y = touch->yres;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
420 SDL_gestureTouch[SDL_numGestureTouches].numDownFingers = 0;
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
421
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
422 SDL_gestureTouch[SDL_numGestureTouches].res.x = touch->xres;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
423 SDL_gestureTouch[SDL_numGestureTouches].id = touch->id;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
424
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
425 SDL_gestureTouch[SDL_numGestureTouches].numDollarTemplates = 0;
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
426
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
427 SDL_gestureTouch[SDL_numGestureTouches].recording = SDL_FALSE;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
428
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
429 SDL_numGestureTouches++;
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
430 return 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
431 }
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
432
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
433 int SDL_GestureRemoveTouch(SDL_TouchID id) {
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
434 int i;
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
435 for (i = 0; i < SDL_numGestureTouches; i++) {
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
436 if (SDL_gestureTouch[i].id == id) {
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
437 SDL_numGestureTouches--;
4868
d6adaafcfb10 Fixed compiling with Visual Studio 2008
Sam Lantinga <slouken@libsdl.org>
parents: 4865
diff changeset
438 SDL_memcpy(&SDL_gestureTouch[i], &SDL_gestureTouch[SDL_numGestureTouches], sizeof(SDL_gestureTouch[i]));
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
439 return 1;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
440 }
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
441 }
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
442 return -1;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
443 }
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
444
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
445
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
446 SDL_GestureTouch * SDL_GetGestureTouch(SDL_TouchID id) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
447 int i;
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
448 for(i = 0;i < SDL_numGestureTouches; i++) {
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
449 //printf("%i ?= %i\n",SDL_gestureTouch[i].id,id);
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
450 if(SDL_gestureTouch[i].id == id) return &SDL_gestureTouch[i];
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
451 }
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
452 return NULL;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
453 }
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
454
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
455 int SDL_SendGestureMulti(SDL_GestureTouch* touch,float dTheta,float dDist) {
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
456 SDL_Event event;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
457 event.mgesture.type = SDL_MULTIGESTURE;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
458 event.mgesture.touchId = touch->id;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
459 event.mgesture.x = touch->centroid.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
460 event.mgesture.y = touch->centroid.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
461 event.mgesture.dTheta = dTheta;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
462 event.mgesture.dDist = dDist;
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
463 event.mgesture.numFingers = touch->numDownFingers;
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
464 return SDL_PushEvent(&event) > 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
465 }
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
466
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
467 int SDL_SendGestureDollar(SDL_GestureTouch* touch,
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
468 SDL_GestureID gestureId,float error) {
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
469 SDL_Event event;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
470 event.dgesture.type = SDL_DOLLARGESTURE;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
471 event.dgesture.touchId = touch->id;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
472 /*
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
473 //TODO: Add this to give location of gesture?
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
474 event.mgesture.x = touch->centroid.x;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
475 event.mgesture.y = touch->centroid.y;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
476 */
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
477 event.dgesture.gestureId = gestureId;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
478 event.dgesture.error = error;
4689
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4688
diff changeset
479 //A finger came up to trigger this event.
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4688
diff changeset
480 event.dgesture.numFingers = touch->numDownFingers + 1;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
481 return SDL_PushEvent(&event) > 0;
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
482 }
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
483
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
484
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
485 int SDL_SendDollarRecord(SDL_GestureTouch* touch,SDL_GestureID gestureId) {
4659
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
486 SDL_Event event;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
487 event.dgesture.type = SDL_DOLLARRECORD;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
488 event.dgesture.touchId = touch->id;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
489 event.dgesture.gestureId = gestureId;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
490 return SDL_PushEvent(&event) > 0;
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
491 }
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
492
063b9455bd1a Added some files I had previosuly missed
Jim Grandpre <jim.tla@gmail.com>
parents: 4658
diff changeset
493
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
494 void SDL_GestureProcessEvent(SDL_Event* event)
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
495 {
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
496 float x,y;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
497 SDL_FloatPoint path[DOLLARNPOINTS];
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
498 int index;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
499 int i;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
500 float pathDx, pathDy;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
501 SDL_FloatPoint lastP;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
502 SDL_FloatPoint lastCentroid;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
503 float lDist;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
504 float Dist;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
505 float dtheta;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
506 float dDist;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
507
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
508 if(event->type == SDL_FINGERMOTION ||
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
509 event->type == SDL_FINGERDOWN ||
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
510 event->type == SDL_FINGERUP) {
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
511 SDL_GestureTouch* inTouch = SDL_GetGestureTouch(event->tfinger.touchId);
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
512
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
513 //Shouldn't be possible
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
514 if(inTouch == NULL) return;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
515
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
516 //printf("@ (%i,%i) with res: (%i,%i)\n",(int)event->tfinger.x,
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
517 // (int)event->tfinger.y,
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
518 // (int)inTouch->res.x,(int)inTouch->res.y);
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
519
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
520
4865
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
521 x = ((float)event->tfinger.x)/(float)inTouch->res.x;
fff50e86c891 Update VS2010 project to add new files; update new files so code builds on Win32/Win64
Andreas Schiffler <aschiffler@ferzkopp.net>
parents: 4689
diff changeset
522 y = ((float)event->tfinger.y)/(float)inTouch->res.y;
4658
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
523
454385d76845 Moved $1 Gestures into the SDL Library
Jim Grandpre <jim.tla@gmail.com>
parents: 4657
diff changeset
524
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
525 //Finger Up
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
526 if(event->type == SDL_FINGERUP) {
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
527 inTouch->numDownFingers--;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
528
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
529 #ifdef ENABLE_DOLLAR
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
530 if(inTouch->recording) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
531 inTouch->recording = SDL_FALSE;
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
532 dollarNormalize(&inTouch->dollarPath,path);
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
533 //PrintPath(path);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
534 if(recordAll) {
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
535 index = SDL_AddDollarGesture(NULL,path);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
536 for(i = 0;i < SDL_numGestureTouches; i++)
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
537 SDL_gestureTouch[i].recording = SDL_FALSE;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
538 }
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
539 else {
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
540 index = SDL_AddDollarGesture(inTouch,path);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
541 }
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
542
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
543 if(index >= 0) {
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
544 SDL_SendDollarRecord(inTouch,inTouch->dollarTemplate[index].hash);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
545 }
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
546 else {
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
547 SDL_SendDollarRecord(inTouch,-1);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
548 }
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
549 }
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
550 else {
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
551 int bestTempl;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
552 float error;
4920
a4032241deb5 Fixed massive stack memory usage in the gesture functions
Sam Lantinga <slouken@libsdl.org>
parents: 4919
diff changeset
553 error = dollarRecognize(&inTouch->dollarPath,
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
554 &bestTempl,inTouch);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
555 if(bestTempl >= 0){
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
556 //Send Event
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
557 unsigned long gestureId = inTouch->dollarTemplate[bestTempl].hash;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
558 SDL_SendGestureDollar(inTouch,gestureId,error);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
559 //printf ("%s\n",);("Dollar error: %f\n",error);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
560 }
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
561 }
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
562 #endif
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
563 //inTouch->gestureLast[j] = inTouch->gestureLast[inTouch->numDownFingers];
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
564 if(inTouch->numDownFingers > 0) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
565 inTouch->centroid.x = (inTouch->centroid.x*(inTouch->numDownFingers+1)-
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
566 x)/inTouch->numDownFingers;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
567 inTouch->centroid.y = (inTouch->centroid.y*(inTouch->numDownFingers+1)-
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
568 y)/inTouch->numDownFingers;
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
569 }
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
570 }
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
571 else if(event->type == SDL_FINGERMOTION) {
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
572 float dx = ((float)event->tfinger.dx)/(float)inTouch->res.x;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
573 float dy = ((float)event->tfinger.dy)/(float)inTouch->res.y;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
574 //printf("dx,dy: (%f,%f)\n",dx,dy);
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
575 #ifdef ENABLE_DOLLAR
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
576 SDL_DollarPath* path = &inTouch->dollarPath;
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
577 if(path->numPoints < MAXPATHSIZE) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
578 path->p[path->numPoints].x = inTouch->centroid.x;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
579 path->p[path->numPoints].y = inTouch->centroid.y;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
580 pathDx =
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
581 (path->p[path->numPoints].x-path->p[path->numPoints-1].x);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
582 pathDy =
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
583 (path->p[path->numPoints].y-path->p[path->numPoints-1].y);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
584 path->length += (float)SDL_sqrt(pathDx*pathDx + pathDy*pathDy);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
585 path->numPoints++;
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
586 }
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
587 #endif
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
588 lastP.x = x - dx;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
589 lastP.y = y - dy;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
590 lastCentroid = inTouch->centroid;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
591
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
592 inTouch->centroid.x += dx/inTouch->numDownFingers;
4685
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
593 inTouch->centroid.y += dy/inTouch->numDownFingers;
e0c3b09368a6 Fixed Dollar Recognition.
Jim Grandpre <jim.tla@gmail.com>
parents: 4684
diff changeset
594 //printf("Centrid : (%f,%f)\n",inTouch->centroid.x,inTouch->centroid.y);
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
595 if(inTouch->numDownFingers > 1) {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
596 SDL_FloatPoint lv; //Vector from centroid to last x,y position
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
597 SDL_FloatPoint v; //Vector from centroid to current x,y position
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
598 //lv = inTouch->gestureLast[j].cv;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
599 lv.x = lastP.x - lastCentroid.x;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
600 lv.y = lastP.y - lastCentroid.y;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
601 lDist = (float)SDL_sqrt(lv.x*lv.x + lv.y*lv.y);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
602 //printf("lDist = %f\n",lDist);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
603 v.x = x - inTouch->centroid.x;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
604 v.y = y - inTouch->centroid.y;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
605 //inTouch->gestureLast[j].cv = v;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
606 Dist = (float)SDL_sqrt(v.x*v.x+v.y*v.y);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
607 // SDL_cos(dTheta) = (v . lv)/(|v| * |lv|)
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
608
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
609 //Normalize Vectors to simplify angle calculation
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
610 lv.x/=lDist;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
611 lv.y/=lDist;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
612 v.x/=Dist;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
613 v.y/=Dist;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
614 dtheta = (float)SDL_atan2(lv.x*v.y - lv.y*v.x,lv.x*v.x + lv.y*v.y);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
615
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
616 dDist = (Dist - lDist);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
617 if(lDist == 0) {dDist = 0;dtheta = 0;} //To avoid impossible values
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
618
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
619 //inTouch->gestureLast[j].dDist = dDist;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
620 //inTouch->gestureLast[j].dtheta = dtheta;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
621
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
622 //printf("dDist = %f, dTheta = %f\n",dDist,dtheta);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
623 //gdtheta = gdtheta*.9 + dtheta*.1;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
624 //gdDist = gdDist*.9 + dDist*.1
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
625 //knob.r += dDist/numDownFingers;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
626 //knob.ang += dtheta;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
627 //printf("thetaSum = %f, distSum = %f\n",gdtheta,gdDist);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
628 //printf("id: %i dTheta = %f, dDist = %f\n",j,dtheta,dDist);
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
629 SDL_SendGestureMulti(inTouch,dtheta,dDist);
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
630 }
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
631 else {
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
632 //inTouch->gestureLast[j].dDist = 0;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
633 //inTouch->gestureLast[j].dtheta = 0;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
634 //inTouch->gestureLast[j].cv.x = 0;
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
635 //inTouch->gestureLast[j].cv.y = 0;
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
636 }
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
637 //inTouch->gestureLast[j].f.p.x = x;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
638 //inTouch->gestureLast[j].f.p.y = y;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
639 //break;
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
640 //pressure?
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
641 }
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
642
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
643 if(event->type == SDL_FINGERDOWN) {
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
644
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
645 inTouch->numDownFingers++;
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
646 inTouch->centroid.x = (inTouch->centroid.x*(inTouch->numDownFingers - 1)+
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
647 x)/inTouch->numDownFingers;
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
648 inTouch->centroid.y = (inTouch->centroid.y*(inTouch->numDownFingers - 1)+
4919
716b2cbf4c9e First pass at Windows multi-touch gesture support
Sam Lantinga <slouken@libsdl.org>
parents: 4868
diff changeset
649 y)/inTouch->numDownFingers;
4688
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
650 //printf("Finger Down: (%f,%f). Centroid: (%f,%f\n",x,y,
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
651 // inTouch->centroid.x,inTouch->centroid.y);
494f71f57a80 Fixed bugs related to keyboard handling in gestureSDLTest. Fixed gesture code (dynamic memory allocation). Cleaned up gesture and test code.
Jim Grandpre <jim.tla@gmail.com>
parents: 4686
diff changeset
652
4684
f47c2640c667 Re-enabled dollar gesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4683
diff changeset
653 #ifdef ENABLE_DOLLAR
f47c2640c667 Re-enabled dollar gesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4683
diff changeset
654 inTouch->dollarPath.length = 0;
f47c2640c667 Re-enabled dollar gesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4683
diff changeset
655 inTouch->dollarPath.p[0].x = x;
f47c2640c667 Re-enabled dollar gesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4683
diff changeset
656 inTouch->dollarPath.p[0].y = y;
f47c2640c667 Re-enabled dollar gesture
Jim Grandpre <jim.tla@gmail.com>
parents: 4683
diff changeset
657 inTouch->dollarPath.numPoints = 1;
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
658 #endif
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
659 }
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
660 }
4683
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
661 }
15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
Jim Grandpre <jim.tla@gmail.com>
parents: 4682
diff changeset
662
4657
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
663 /* vi: set ts=4 sw=4 expandtab: */
eed063a0bf5b Moved Multi finger gesture recognition into the library.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
664