Mercurial > sdl-ios-xcode
annotate src/joystick/android/SDL_sysjoystick.c @ 5177:b9cf75615028
Don't free the surface since the application might be still using it.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 04 Feb 2011 12:26:01 -0800 |
| parents | 327f181542f1 |
| children | b530ef003506 |
| rev | line source |
|---|---|
| 4721 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997-2010 Sam Lantinga | |
| 4 | |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Lesser General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2.1 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Lesser General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Lesser General Public | |
| 16 License along with this library; if not, write to the Free Software | |
| 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 18 | |
| 19 Sam Lantinga | |
| 20 slouken@libsdl.org | |
| 21 */ | |
| 22 | |
| 23 #include "SDL_config.h" | |
| 24 | |
| 25 #ifdef SDL_JOYSTICK_ANDROID | |
| 26 | |
| 27 /* This is the system specific header for the SDL joystick API */ | |
| 28 #include <stdio.h> /* For the definition of NULL */ | |
| 29 | |
| 30 #include "SDL_error.h" | |
| 31 #include "SDL_events.h" | |
| 32 #include "SDL_joystick.h" | |
| 33 #include "../SDL_sysjoystick.h" | |
| 34 #include "../SDL_joystick_c.h" | |
|
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327f181542f1
Include windows.h in a single point in the source, so we can be consistent about the definition of UNICODE and have core utility functions for Windows that all modules can share.
Sam Lantinga <slouken@libsdl.org>
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35 #include "../../core/android/SDL_android.h" |
| 4721 | 36 |
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37 static const char *accelerometerName = "Android accelerometer"; |
| 4721 | 38 |
| 39 /* Function to scan the system for joysticks. | |
| 40 * This function should set SDL_numjoysticks to the number of available | |
| 41 * joysticks. Joystick 0 should be the system default joystick. | |
| 42 * It should return 0, or -1 on an unrecoverable fatal error. | |
| 43 */ | |
| 44 int | |
| 45 SDL_SYS_JoystickInit(void) | |
| 46 { | |
| 47 SDL_numjoysticks = 1; | |
| 48 | |
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49 return (1); |
| 4721 | 50 } |
| 51 | |
| 52 /* Function to get the device-dependent name of a joystick */ | |
| 53 const char * | |
| 54 SDL_SYS_JoystickName(int index) | |
| 55 { | |
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56 if (index == 0) { |
| 4721 | 57 return accelerometerName; |
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58 } else { |
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59 SDL_SetError("No joystick available with that index"); |
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60 return (NULL); |
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61 } |
| 4721 | 62 } |
| 63 | |
| 64 /* Function to open a joystick for use. | |
| 65 The joystick to open is specified by the index field of the joystick. | |
| 66 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 67 It returns 0, or -1 if there is an error. | |
| 68 */ | |
| 69 int | |
| 70 SDL_SYS_JoystickOpen(SDL_Joystick * joystick) | |
| 71 { | |
| 72 joystick->nbuttons = 0; | |
| 73 joystick->nhats = 0; | |
| 74 joystick->nballs = 0; | |
| 75 joystick->naxes = 3; | |
| 76 joystick->name = accelerometerName; | |
| 77 return 0; | |
| 78 } | |
| 79 | |
| 80 | |
| 81 /* Function to update the state of a joystick - called as a device poll. | |
| 82 * This function shouldn't update the joystick structure directly, | |
| 83 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 84 * and update joystick device state. | |
| 85 */ | |
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86 void |
| 4721 | 87 SDL_SYS_JoystickUpdate(SDL_Joystick * joystick) |
| 88 { | |
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89 int i; |
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90 float values[3]; |
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91 |
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92 Android_JNI_GetAccelerometerValues(values); |
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93 |
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94 for ( i = 0; i < 3; i++ ) { |
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95 SDL_PrivateJoystickAxis(joystick, i, values[i]); |
| 4721 | 96 } |
| 97 } | |
| 98 | |
| 99 /* Function to close a joystick after use */ | |
| 100 void | |
| 101 SDL_SYS_JoystickClose(SDL_Joystick * joystick) | |
| 102 { | |
| 103 } | |
| 104 | |
| 105 /* Function to perform any system-specific joystick related cleanup */ | |
| 106 void | |
| 107 SDL_SYS_JoystickQuit(void) | |
| 108 { | |
| 109 } | |
| 110 | |
| 111 #endif /* SDL_JOYSTICK_NDS */ | |
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112 |
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113 /* vi: set ts=4 sw=4 expandtab: */ |