diff options
Diffstat (limited to 'OpenAL32/alAuxEffectSlot.c')
| -rw-r--r-- | OpenAL32/alAuxEffectSlot.c | 424 |
1 files changed, 424 insertions, 0 deletions
diff --git a/OpenAL32/alAuxEffectSlot.c b/OpenAL32/alAuxEffectSlot.c new file mode 100644 index 00000000..282b8030 --- /dev/null +++ b/OpenAL32/alAuxEffectSlot.c @@ -0,0 +1,424 @@ +/** + * OpenAL cross platform audio library + * Copyright (C) 1999-2007 by authors. + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + * Or go to http://www.gnu.org/copyleft/lgpl.html + */ + +#include <stdlib.h> + +#include "config.h" + +#include "AL/al.h" +#include "AL/alc.h" + +#include "alMain.h" +#include "alAuxEffectSlot.h" +#include "alThunk.h" +#include "alError.h" + +static ALeffectslot *g_AuxiliaryEffectSlotList; +static ALuint g_AuxiliaryEffectSlotCount; + + +AL_API ALvoid AL_APIENTRY alGenAuxiliaryEffectSlots(ALsizei n, ALuint *effectslots) +{ + ALCcontext *Context; + ALsizei i; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (n > 0) + { + /* NOTE: We only support one slot currently */ + if(n == 1 && g_AuxiliaryEffectSlotCount == 0) + { + // Check that enough memory has been allocted in the 'sources' array for n Sources + if (!IsBadWritePtr((void*)effectslots, n * sizeof(ALuint))) + { + ALeffectslot **list = &g_AuxiliaryEffectSlotList; + while(*list) + list = &(*list)->next; + + i = 0; + while(i < n) + { + *list = calloc(1, sizeof(ALeffectslot)); + if(!(*list)) + { + // We must have run out or memory + alDeleteAuxiliaryEffectSlots(i, effectslots); + alSetError(AL_OUT_OF_MEMORY); + break; + } + + (*list)->Gain = 1.0; + (*list)->AuxSendAuto = AL_TRUE; + + effectslots[i] = (ALuint)ALTHUNK_ADDENTRY(*list); + (*list)->effectslot = effectslots[i]; + + g_AuxiliaryEffectSlotCount++; + i++; + } + } + } + else + alSetError(AL_INVALID_OPERATION); + } + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alDeleteAuxiliaryEffectSlots(ALsizei n, ALuint *effectslots) +{ + ALCcontext *Context; + ALeffectslot *ALAuxiliaryEffectSlot; + ALsizei i; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (n >= 0) + { + // Check that all effectslots are valid + for (i = 0; i < n; i++) + { + if (!alIsAuxiliaryEffectSlot(effectslots[i])) + { + alSetError(AL_INVALID_NAME); + break; + } + } + + if (i == n) + { + // All effectslots are valid + for (i = 0; i < n; i++) + { + // Recheck that the effectslot is valid, because there could be duplicated names + if (alIsAuxiliaryEffectSlot(effectslots[i])) + { + ALeffectslot **list; + + ALAuxiliaryEffectSlot = ((ALeffectslot*)ALTHUNK_LOOKUPENTRY(effectslots[i])); + + // Remove Source from list of Sources + list = &g_AuxiliaryEffectSlotList; + while(*list && *list != ALAuxiliaryEffectSlot) + list = &(*list)->next; + + if(*list) + *list = (*list)->next; + ALTHUNK_REMOVEENTRY(ALAuxiliaryEffectSlot->effectslot); + + memset(ALAuxiliaryEffectSlot, 0, sizeof(ALeffectslot)); + free(ALAuxiliaryEffectSlot); + + g_AuxiliaryEffectSlotCount--; + } + } + } + } + else + alSetError(AL_INVALID_VALUE); + + ProcessContext(Context); +} + +AL_API ALboolean AL_APIENTRY alIsAuxiliaryEffectSlot(ALuint effectslot) +{ + ALCcontext *Context; + ALeffectslot **list; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + list = &g_AuxiliaryEffectSlotList; + while(*list && (*list)->effectslot != effectslot) + list = &(*list)->next; + + ProcessContext(Context); + + return (*list ? AL_TRUE : AL_FALSE); +} + +AL_API ALvoid AL_APIENTRY alAuxiliaryEffectSloti(ALuint effectslot, ALenum param, ALint iValue) +{ + ALCcontext *Context; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsAuxiliaryEffectSlot(effectslot)) + { + ALeffectslot *ALEffectSlot = (ALeffectslot*)ALTHUNK_LOOKUPENTRY(effectslot); + + switch(param) + { + case AL_EFFECTSLOT_EFFECT: + if(alIsEffect(iValue)) + { + ALeffect *effect = (ALeffect*)ALTHUNK_LOOKUPENTRY(iValue); + if(!effect) + { + ALEffectSlot->effect.type = AL_EFFECT_NULL; + ALEffectSlot->effect.effect = 0; + } + else + memcpy(&ALEffectSlot->effect, effect, sizeof(*effect)); + } + else + alSetError(AL_INVALID_VALUE); + break; + + case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO: + if(iValue == AL_TRUE || iValue == AL_FALSE) + ALEffectSlot->AuxSendAuto = iValue; + else + alSetError(AL_INVALID_VALUE); + break; + + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alAuxiliaryEffectSlotiv(ALuint effectslot, ALenum param, ALint *piValues) +{ + ALCcontext *Context; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsAuxiliaryEffectSlot(effectslot)) + { + switch(param) + { + case AL_EFFECTSLOT_EFFECT: + case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO: + alAuxiliaryEffectSloti(effectslot, param, piValues[0]); + break; + + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alAuxiliaryEffectSlotf(ALuint effectslot, ALenum param, ALfloat flValue) +{ + ALCcontext *Context; + + (void)flValue; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsAuxiliaryEffectSlot(effectslot)) + { + ALeffectslot *ALEffectSlot = (ALeffectslot*)ALTHUNK_LOOKUPENTRY(effectslot); + + switch(param) + { + case AL_EFFECTSLOT_GAIN: + if(flValue >= 0.0f && flValue <= 1.0f) + ALEffectSlot->Gain = flValue; + else + alSetError(AL_INVALID_VALUE); + break; + + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alAuxiliaryEffectSlotfv(ALuint effectslot, ALenum param, ALfloat *pflValues) +{ + ALCcontext *Context; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsAuxiliaryEffectSlot(effectslot)) + { + switch(param) + { + case AL_EFFECTSLOT_GAIN: + alAuxiliaryEffectSlotf(effectslot, param, pflValues[0]); + break; + + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alGetAuxiliaryEffectSloti(ALuint effectslot, ALenum param, ALint *piValue) +{ + ALCcontext *Context; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsAuxiliaryEffectSlot(effectslot)) + { + ALeffectslot *ALEffectSlot = (ALeffectslot*)ALTHUNK_LOOKUPENTRY(effectslot); + + switch(param) + { + case AL_EFFECTSLOT_EFFECT: + *piValue = ALEffectSlot->effect.effect; + break; + + case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO: + *piValue = ALEffectSlot->AuxSendAuto; + break; + + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotiv(ALuint effectslot, ALenum param, ALint *piValues) +{ + ALCcontext *Context; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsAuxiliaryEffectSlot(effectslot)) + { + switch(param) + { + case AL_EFFECTSLOT_EFFECT: + case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO: + alGetAuxiliaryEffectSloti(effectslot, param, piValues); + break; + + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotf(ALuint effectslot, ALenum param, ALfloat *pflValue) +{ + ALCcontext *Context; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsAuxiliaryEffectSlot(effectslot)) + { + ALeffectslot *ALEffectSlot = (ALeffectslot*)ALTHUNK_LOOKUPENTRY(effectslot); + + switch(param) + { + case AL_EFFECTSLOT_GAIN: + *pflValue = ALEffectSlot->Gain; + break; + + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotfv(ALuint effectslot, ALenum param, ALfloat *pflValues) +{ + ALCcontext *Context; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsAuxiliaryEffectSlot(effectslot)) + { + switch(param) + { + case AL_EFFECTSLOT_GAIN: + alGetAuxiliaryEffectSlotf(effectslot, param, pflValues); + break; + + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + + +ALvoid ReleaseALAuxiliaryEffectSlots(ALvoid) +{ +#ifdef _DEBUG + if(g_AuxiliaryEffectSlotCount > 0) + AL_PRINT("exit() %d AuxiliaryEffectSlot(s) NOT deleted\n", g_AuxiliaryEffectSlotCount); +#endif + + while(g_AuxiliaryEffectSlotList) + { + ALeffectslot *temp = g_AuxiliaryEffectSlotList; + g_AuxiliaryEffectSlotList = g_AuxiliaryEffectSlotList->next; + + // Release effectslot structure + memset(temp, 0, sizeof(ALeffectslot)); + free(temp); + } + g_AuxiliaryEffectSlotCount = 0; +} |