diff options
Diffstat (limited to 'OpenAL32')
| -rw-r--r-- | OpenAL32/Include/alFilter.h | 44 | ||||
| -rw-r--r-- | OpenAL32/alExtension.c | 20 | ||||
| -rw-r--r-- | OpenAL32/alFilter.c | 348 |
3 files changed, 412 insertions, 0 deletions
diff --git a/OpenAL32/Include/alFilter.h b/OpenAL32/Include/alFilter.h new file mode 100644 index 00000000..a223a5aa --- /dev/null +++ b/OpenAL32/Include/alFilter.h @@ -0,0 +1,44 @@ +#ifndef _AL_FILTER_H_ +#define _AL_FILTER_H_ + +#include "AL/al.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define AL_FILTER_NULL 0x0000 +#define AL_FILTER_LOWPASS 0x0001 +#define AL_FILTER_HIGHPASS 0x0002 +#define AL_FILTER_BANDPASS 0x0003 + +typedef struct ALfilter_struct +{ + // Filter type (AL_FILTER_NULL, ...) + ALenum type; + + // Index to itself + ALuint filter; + + struct ALfilter_struct *next; +} ALfilter; + +AL_API ALvoid AL_APIENTRY alGenFilters(ALsizei n, ALuint *filters); +AL_API ALvoid AL_APIENTRY alDeleteFilters(ALsizei n, ALuint *filters); +AL_API ALboolean AL_APIENTRY alIsFilter(ALuint filter); + +AL_API ALvoid AL_APIENTRY alFilteri(ALuint filter, ALenum param, ALint iValue); +AL_API ALvoid AL_APIENTRY alFilteriv(ALuint filter, ALenum param, ALint *piValues); +AL_API ALvoid AL_APIENTRY alFilterf(ALuint filter, ALenum param, ALfloat flValue); +AL_API ALvoid AL_APIENTRY alFilterfv(ALuint filter, ALenum param, ALfloat *pflValues); + +AL_API ALvoid AL_APIENTRY alGetFilteri(ALuint filter, ALenum param, ALint *piValue); +AL_API ALvoid AL_APIENTRY alGetFilteriv(ALuint filter, ALenum param, ALint *piValues); +AL_API ALvoid AL_APIENTRY alGetFilterf(ALuint filter, ALenum param, ALfloat *pflValue); +AL_API ALvoid AL_APIENTRY alGetFilterfv(ALuint filter, ALenum param, ALfloat *pflValues); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/OpenAL32/alExtension.c b/OpenAL32/alExtension.c index 269590e9..b31f7c14 100644 --- a/OpenAL32/alExtension.c +++ b/OpenAL32/alExtension.c @@ -24,6 +24,7 @@ #include "alExtension.h" #include "alError.h" #include "alMain.h" +#include "alFilter.h" #include "AL/al.h" #include "AL/alc.h" @@ -101,6 +102,19 @@ static ALfunction function[]= { { "alDopplerVelocity", (ALvoid *) alDopplerVelocity }, { "alSpeedOfSound", (ALvoid *) alSpeedOfSound }, { "alDistanceModel", (ALvoid *) alDistanceModel }, + + { "alGenFilters", (ALvoid *) alGenFilters }, + { "alDeleteFilters", (ALvoid *) alDeleteFilters }, + { "alIsFilter", (ALvoid *) alIsFilter }, + { "alFilteri", (ALvoid *) alFilteri }, + { "alFilteriv", (ALvoid *) alFilteriv }, + { "alFilterf", (ALvoid *) alFilterf }, + { "alFilterfv", (ALvoid *) alFilterfv }, + { "alGetFilteri", (ALvoid *) alGetFilteri }, + { "alGetFilteriv", (ALvoid *) alGetFilteriv }, + { "alGetFilterf", (ALvoid *) alGetFilterf }, + { "alGetFilterfv", (ALvoid *) alGetFilterfv }, + { NULL, (ALvoid *) NULL } }; static ALenums enumeration[]={ @@ -196,6 +210,12 @@ static ALenums enumeration[]={ { (ALchar *)"AL_EXPONENT_DISTANCE", AL_EXPONENT_DISTANCE }, { (ALchar *)"AL_EXPONENT_DISTANCE_CLAMPED", AL_EXPONENT_DISTANCE_CLAMPED }, + // Filter types + { (ALchar *)"AL_FILTER_NULL", AL_FILTER_NULL }, + { (ALchar *)"AL_FILTER_LOWPASS", AL_FILTER_LOWPASS }, + { (ALchar *)"AL_FILTER_HIGHPASS", AL_FILTER_HIGHPASS }, + { (ALchar *)"AL_FILTER_BANDPASS", AL_FILTER_BANDPASS }, + // Default { (ALchar *)NULL, (ALenum ) 0 } }; diff --git a/OpenAL32/alFilter.c b/OpenAL32/alFilter.c new file mode 100644 index 00000000..dae7dcf7 --- /dev/null +++ b/OpenAL32/alFilter.c @@ -0,0 +1,348 @@ +/** + * 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 "alFilter.h" + +static ALfilter *g_FilterList; +static ALuint g_FilterCount; + +static void InitFilterParams(ALfilter *filter, ALenum type); + + +AL_API ALvoid AL_APIENTRY alGenFilters(ALsizei n, ALuint *filters) +{ + ALCcontext *Context; + ALsizei i; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (n > 0) + { + // Check that enough memory has been allocted in the 'sources' array for n Sources + if (!IsBadWritePtr((void*)filters, n * sizeof(ALuint))) + { + ALfilter **list = &g_FilterList; + while(*list) + list = &(*list)->next; + + i = 0; + while(i < n) + { + *list = calloc(1, sizeof(ALfilter)); + if(!(*list)) + { + // We must have run out or memory + alDeleteFilters(i, filters); + alSetError(AL_OUT_OF_MEMORY); + break; + } + + filters[i] = (ALuint)ALTHUNK_ADDENTRY(*list); + (*list)->filter = filters[i]; + + InitFilterParams(*list, AL_FILTER_NULL); + g_FilterCount++; + i++; + } + } + } + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alDeleteFilters(ALsizei n, ALuint *filters) +{ + ALCcontext *Context; + ALfilter *ALFilter; + ALsizei i; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (n >= 0) + { + // Check that all filters are valid + for (i = 0; i < n; i++) + { + if (!alIsFilter(filters[i])) + { + alSetError(AL_INVALID_NAME); + break; + } + } + + if (i == n) + { + // All filters are valid + for (i = 0; i < n; i++) + { + // Recheck that the filter is valid, because there could be duplicated names + if (alIsFilter(filters[i])) + { + ALfilter **list; + + ALFilter = ((ALfilter*)ALTHUNK_LOOKUPENTRY(filters[i])); + + // Remove Source from list of Sources + list = &g_FilterList; + while(*list && *list != ALFilter) + list = &(*list)->next; + + if(*list) + *list = (*list)->next; + ALTHUNK_REMOVEENTRY(ALFilter->filter); + + memset(ALFilter, 0, sizeof(ALfilter)); + free(ALFilter); + + g_FilterCount--; + } + } + } + } + else + alSetError(AL_INVALID_VALUE); + + ProcessContext(Context); +} + +AL_API ALboolean AL_APIENTRY alIsFilter(ALuint filter) +{ + ALCcontext *Context; + ALfilter **list; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + list = &g_FilterList; + while(*list && (*list)->filter != filter) + list = &(*list)->next; + + ProcessContext(Context); + + return (*list ? AL_TRUE : AL_FALSE); +} + +AL_API ALvoid AL_APIENTRY alFilteri(ALuint filter, ALenum param, ALint iValue) +{ + ALCcontext *Context; + + (void)iValue; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsFilter(filter)) + { + switch(param) + { + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alFilteriv(ALuint filter, ALenum param, ALint *piValues) +{ + ALCcontext *Context; + + (void)piValues; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsFilter(filter)) + { + switch(param) + { + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alFilterf(ALuint filter, ALenum param, ALfloat flValue) +{ + ALCcontext *Context; + + (void)flValue; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsFilter(filter)) + { + switch(param) + { + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alFilterfv(ALuint filter, ALenum param, ALfloat *pflValues) +{ + ALCcontext *Context; + + (void)pflValues; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsFilter(filter)) + { + switch(param) + { + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alGetFilteri(ALuint filter, ALenum param, ALint *piValue) +{ + ALCcontext *Context; + + (void)piValue; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsFilter(filter)) + { + switch(param) + { + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alGetFilteriv(ALuint filter, ALenum param, ALint *piValues) +{ + ALCcontext *Context; + + (void)piValues; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsFilter(filter)) + { + switch(param) + { + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alGetFilterf(ALuint filter, ALenum param, ALfloat *pflValue) +{ + ALCcontext *Context; + + (void)pflValue; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsFilter(filter)) + { + switch(param) + { + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + +AL_API ALvoid AL_APIENTRY alGetFilterfv(ALuint filter, ALenum param, ALfloat *pflValues) +{ + ALCcontext *Context; + + (void)pflValues; + + Context = alcGetCurrentContext(); + SuspendContext(Context); + + if (alIsFilter(filter)) + { + switch(param) + { + default: + alSetError(AL_INVALID_ENUM); + break; + } + } + else + alSetError(AL_INVALID_NAME); + + ProcessContext(Context); +} + + +static void InitFilterParams(ALfilter *filter, ALenum type) +{ + filter->type = type; +} |