Mercurial > sdl-ios-xcode
changeset 2482:b51ad78812d5 gsoc2008_force_feedback
Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Added and partially implemented CONDITION and RAMP effects.
author | Edgar Simo <bobbens@gmail.com> |
---|---|
date | Tue, 01 Jul 2008 11:21:36 +0000 |
parents | 5d0ea4576f20 |
children | 9d52368ebcf5 |
files | include/SDL_haptic.h src/haptic/linux/SDL_syshaptic.c |
diffstat | 2 files changed, 117 insertions(+), 5 deletions(-) [+] |
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--- a/include/SDL_haptic.h Tue Jul 01 10:44:42 2008 +0000 +++ b/include/SDL_haptic.h Tue Jul 01 11:21:36 2008 +0000 @@ -52,10 +52,9 @@ #define SDL_HAPTIC_SPRING (1<<3) #define SDL_HAPTIC_FRICTION (1<<4) #define SDL_HAPTIC_DAMPER (1<<5) -#define SDL_HAPTIC_RUMBLE (1<<6) -#define SDL_HAPTIC_INERTIA (1<<7) -#define SDL_HAPTIC_GAIN (1<<8) -#define SDL_HAPTIC_AUTOCENTER (1<<9) +#define SDL_HAPTIC_INERTIA (1<<6) +#define SDL_HAPTIC_GAIN (1<<7) +#define SDL_HAPTIC_AUTOCENTER (1<<8) typedef enum SDL_waveform { SDL_WAVEFORM_SINE, @@ -134,12 +133,60 @@ Uint16 fade_length; Uint16 fade_level; } SDL_HapticPeriodic; +typedef struct SDL_HapticCondition { + /* Header */ + Uint16 type; /* SDL_HAPTIC_{SPRING,DAMPER,INERTIA,FRICTION} */ + Uint16 direction; + + /* Replay */ + Uint16 length; + Uint16 delay; + + /* Trigger */ + Uint16 button; + Uint16 interval; + + /* Condition */ + Uint16 right_sat; /* Level when joystick is to the right. */ + Uint16 left_sat; /* Level when joystick is to the left */ + Sint16 right_coeff; /* How fast to increase the force towards the right */ + Sint16 left_coeff; /* How fast to increase the force towards the left */ + Uint16 deadband; /* Size of the dead zone */ + Sint16 center; /* Position of the dead zone */ + +} SDL_HapticCondition; +typedef struct SDL_HapticRamp { + /* Header */ + Uint16 type; /* SDL_HAPTIC_RAMP */ + Uint16 direction; + + /* Replay */ + Uint16 length; + Uint16 delay; + + /* Trigger */ + Uint16 button; + Uint16 interval; + + /* Ramp */ + Sint16 start; + Sint16 end; + + /* Envelope */ + Uint16 attack_length; + Uint16 attack_level; + Uint16 fade_length; + Uint16 fade_level; + +} SDL_HapticRamp; typedef union SDL_HapticEffect { /* Common for all force feedback effects */ Uint16 type; /* Effect type */ SDL_HapticConstant constant; /* Constant effect */ SDL_HapticPeriodic periodic; /* Periodic effect */ + SDL_HapticCondition condition; /* Condition effect */ + SDL_HapticRamp ramp; /* Ramp effect */ } SDL_HapticEffect;
--- a/src/haptic/linux/SDL_syshaptic.c Tue Jul 01 10:44:42 2008 +0000 +++ b/src/haptic/linux/SDL_syshaptic.c Tue Jul 01 11:21:36 2008 +0000 @@ -94,7 +94,6 @@ EV_TEST(FF_SPRING, SDL_HAPTIC_SPRING); EV_TEST(FF_FRICTION, SDL_HAPTIC_FRICTION); EV_TEST(FF_DAMPER, SDL_HAPTIC_DAMPER); - EV_TEST(FF_RUMBLE, SDL_HAPTIC_RUMBLE); EV_TEST(FF_INERTIA, SDL_HAPTIC_INERTIA); EV_TEST(FF_GAIN, SDL_HAPTIC_GAIN); EV_TEST(FF_AUTOCENTER, SDL_HAPTIC_AUTOCENTER); @@ -279,8 +278,11 @@ static int SDL_SYS_ToFFEffect( struct ff_effect * dest, SDL_HapticEffect * src ) { + int i; SDL_HapticConstant *constant; SDL_HapticPeriodic *periodic; + SDL_HapticCondition *condition; + SDL_HapticRamp *ramp; /* Clear up */ SDL_memset(dest, 0, sizeof(struct ff_effect)); @@ -362,6 +364,69 @@ break; + case SDL_HAPTIC_SPRING: + case SDL_HAPTIC_DAMPER: + case SDL_HAPTIC_INERTIA: + case SDL_HAPTIC_FRICTION: + condition = &src->condition; + + /* Header */ + if (dest->type == SDL_HAPTIC_SPRING) + dest->type = FF_SPRING; + else if (dest->type == SDL_HAPTIC_DAMPER) + dest->type = FF_DAMPER; + else if (dest->type == SDL_HAPTIC_INERTIA) + dest->type = FF_INERTIA; + else if (dest->type == SDL_HAPTIC_FRICTION) + dest->type = FF_FRICTION; + dest->direction = CLAMP(condition->direction); + + /* Replay */ + dest->replay.length = CLAMP(condition->length); + dest->replay.delay = CLAMP(condition->delay); + + /* Trigger */ + dest->trigger.button = CLAMP(condition->button); + dest->trigger.interval = CLAMP(condition->interval); + + /* Condition - TODO handle axes */ + dest->u.condition[0].right_saturation = CLAMP(condition->right_sat); + dest->u.condition[0].left_saturation = CLAMP(condition->left_sat); + dest->u.condition[0].right_coeff = condition->right_coeff; + dest->u.condition[0].left_coeff = condition->left_coeff; + dest->u.condition[0].deadband = CLAMP(condition->deadband); + dest->u.condition[0].center = condition->center; + + break; + + case SDL_HAPTIC_RAMP: + ramp = &src->ramp; + + /* Header */ + dest->type = FF_RAMP; + dest->direction = CLAMP(ramp->direction); + + /* Replay */ + dest->replay.length = CLAMP(ramp->length); + dest->replay.delay = CLAMP(ramp->delay); + + /* Trigger */ + dest->trigger.button = CLAMP(ramp->button); + dest->trigger.interval = CLAMP(ramp->interval); + + /* Ramp */ + dest->u.ramp.start_level = ramp->start; + dest->u.ramp.end_level = ramp->end; + + /* Envelope */ + dest->u.ramp.envelope.attack_length = CLAMP(ramp->attack_length); + dest->u.ramp.envelope.attack_level = CLAMP(ramp->attack_level); + dest->u.ramp.envelope.fade_length = CLAMP(ramp->fade_length); + dest->u.ramp.envelope.fade_level = CLAMP(ramp->fade_level); + + break; + + default: SDL_SetError("Unknown haptic effect type."); return -1;