940 lines
16 KiB
C
940 lines
16 KiB
C
/*
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* Copyright (C) 2004 Christopher John Purnell
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* cjp@lost.org.uk
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <float.h>
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#include <alloca.h>
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#include "al_source.h"
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#include "al_vector.h"
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#include "al_error.h"
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#include "alc_device.h"
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#include "alc_context.h"
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#define AL_FIRST_SOURCE_ID 0x4000
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AL_source *_alFindSource(AL_context *ctx, ALuint cid)
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{
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cid -= AL_FIRST_SOURCE_ID;
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if (cid >= ctx->device->subdevs)
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{
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return 0;
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}
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return ctx->sources[cid];
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}
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static AL_source *_alGenSource(AL_context *ctx)
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{
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AL_source *src;
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if (!(src = malloc(sizeof(AL_source))))
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{
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_alSetError(AL_OUT_OF_MEMORY);
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return 0;
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}
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src->context = ctx;
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src->handle = 0;
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src->vol_ctl = 0;
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src->send_ctl = 0;
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src->subdev = -1;
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src->freq = 0;
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src->state = AL_INITIAL;
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src->playing = AL_FALSE;
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src->buffer = 0;
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src->index = 0;
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src->first_q = 0;
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src->current_q = 0;
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src->last_q = &src->first_q;
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if (!_alcOpenSource(src))
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{
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_alcCloseSource(src);
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free(src);
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_alSetError(AL_OUT_OF_MEMORY);
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return 0;
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}
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src->relative = AL_FALSE;
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src->looping = AL_FALSE;
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src->conic = AL_FALSE;
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src->position[0] = 0.0f;
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src->position[1] = 0.0f;
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src->position[2] = 0.0f;
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src->direction[0] = 0.0f;
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src->direction[1] = 0.0f;
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src->direction[2] = 0.0f;
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src->velocity[0] = 0.0f;
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src->velocity[1] = 0.0f;
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src->velocity[2] = 0.0f;
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src->pitch = 1.0f;
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src->gain = 1.0f;
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src->min_gain = 0.0f;
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src->max_gain = 1.0f;
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src->reference_distance = 1.0f;
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src->rolloff_factor = 1.0f;
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src->max_distance = FLT_MAX;
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src->cone_inner_angle = 360.0f;
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src->cone_outer_angle = 360.0f;
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src->cone_outer_gain = 0.0f;
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ctx->sources[src->subdev] = src;
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return src;
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}
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ALvoid _alDeleteSource(AL_source *src)
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{
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AL_queue *que;
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AL_context *ctx = src->context;
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ctx->sources[src->subdev] = 0;
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_alcCloseSource(src);
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que = src->first_q;
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while (que)
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{
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AL_queue *next = que->next;
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_alUnlockBuffer(que->buffer);
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free(que);
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que = next;
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}
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if (src->buffer)
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{
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_alUnlockBuffer(src->buffer);
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}
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free(src);
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}
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ALvoid alGenSources(ALsizei n, ALuint *sources)
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{
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AL_context *ctx;
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AL_source **temp;
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ALsizei i;
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if (n == 0)
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{
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return;
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}
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if (n < 0)
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{
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_alSetError(AL_INVALID_VALUE);
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return;
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}
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if (!(ctx = _alcCurrentContext))
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{
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_alSetError(AL_INVALID_OPERATION);
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return;
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}
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_alcLockContext(ctx);
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temp = alloca(n * sizeof(AL_source *));
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for (i = 0; i < n; i++)
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{
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if (!(temp[i] = _alGenSource(ctx)))
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{
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ALsizei j;
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for (j = 0; j < i; j++)
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_alDeleteSource(temp[j]);
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goto unlock;
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}
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}
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for (i = 0; i < n; i++)
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{
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sources[i] = temp[i]->subdev + AL_FIRST_SOURCE_ID;
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}
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unlock:
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_alcUnlockContext(ctx);
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}
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ALvoid alDeleteSources(ALsizei n, ALuint* sources)
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{
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AL_context *ctx;
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AL_source **temp;
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ALsizei i;
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if (n == 0)
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{
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return;
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}
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if (n < 0)
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{
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_alSetError(AL_INVALID_VALUE);
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return;
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}
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if (!(ctx = _alcCurrentContext))
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{
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_alSetError(AL_INVALID_OPERATION);
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return;
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}
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_alcLockContext(ctx);
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temp = alloca(n * sizeof(AL_source *));
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for (i = 0; i < n; i++)
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{
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if (!(temp[i] = _alFindSource(ctx, sources[i])))
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{
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_alSetError(AL_INVALID_NAME);
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goto unlock;
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}
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}
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for (i = 0; i < n; i++)
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{
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_alDeleteSource(temp[i]);
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}
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unlock:
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_alcUnlockContext(ctx);
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}
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ALboolean alIsSource(ALuint sid)
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{
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AL_context *ctx;
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ALboolean value;
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if (!(ctx = _alcCurrentContext))
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{
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_alSetError(AL_INVALID_OPERATION);
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return AL_FALSE;
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}
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_alcLockContext(ctx);
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value = _alFindSource(ctx, sid) ? AL_TRUE : AL_FALSE;
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_alcUnlockContext(ctx);
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return value;
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}
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static ALvoid _alNormalizeDirection(AL_source *src)
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{
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ALfloat mag = _alVectorMagnitude(src->direction);
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if (mag)
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{
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src->conic = AL_TRUE;
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src->direction[0] /= mag;
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src->direction[1] /= mag;
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src->direction[2] /= mag;
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}
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else
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{
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src->conic = AL_FALSE;
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}
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}
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ALvoid alSourcei(ALuint sid, ALenum param, ALint value)
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{
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AL_context *ctx;
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AL_source *src;
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if (!(ctx = _alcCurrentContext))
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{
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_alSetError(AL_INVALID_OPERATION);
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return;
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}
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_alcLockContext(ctx);
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if (!(src = _alFindSource(ctx, sid)))
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{
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_alSetError(AL_INVALID_NAME);
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goto unlock;
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}
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switch(param)
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{
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case AL_SOURCE_RELATIVE:
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_alRangedAssignB(src->relative, value);
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break;
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case AL_LOOPING:
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_alRangedAssignB(src->looping, value);
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break;
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case AL_PITCH:
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_alRangedAssign1(src->pitch, value, 0);
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break;
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case AL_GAIN:
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_alRangedAssign1(src->gain, value, 0);
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break;
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case AL_MIN_GAIN:
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_alRangedAssign2(src->min_gain, value, 0, 1);
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break;
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case AL_MAX_GAIN:
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_alRangedAssign2(src->max_gain, value, 0, 1);
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break;
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case AL_REFERENCE_DISTANCE:
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_alRangedAssign1(src->reference_distance, value, 0);
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break;
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case AL_ROLLOFF_FACTOR:
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_alRangedAssign1(src->rolloff_factor, value, 0);
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break;
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case AL_MAX_DISTANCE:
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_alRangedAssign1(src->max_distance, value, 0);
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break;
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case AL_CONE_INNER_ANGLE:
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_alRangedAssign2(src->cone_inner_angle, value, 0, 360);
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break;
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case AL_CONE_OUTER_ANGLE:
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_alRangedAssign2(src->cone_outer_angle, value, 0, 360);
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break;
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case AL_CONE_OUTER_GAIN:
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_alRangedAssign2(src->cone_outer_gain, value, 0, 1);
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break;
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case AL_BUFFER:
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{
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AL_buffer *buf;
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if (value)
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{
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if (!(buf = _alLockBuffer(value)))
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{
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_alSetError(AL_INVALID_VALUE);
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break;
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}
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}
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else
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{
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buf = 0;
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}
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if (src->buffer)
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{
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_alUnlockBuffer(src->buffer);
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}
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src->buffer = buf;
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}
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break;
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default:
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_alSetError(AL_INVALID_ENUM);
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break;
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}
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unlock:
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_alcUnlockContext(ctx);
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}
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ALvoid alSourcef(ALuint sid, ALenum param, ALfloat value)
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{
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AL_context *ctx;
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AL_source *src;
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if (!(ctx = _alcCurrentContext))
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{
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_alSetError(AL_INVALID_OPERATION);
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return;
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}
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_alcLockContext(ctx);
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if (!(src = _alFindSource(ctx, sid)))
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{
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_alSetError(AL_INVALID_NAME);
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goto unlock;
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}
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switch(param)
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{
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case AL_SOURCE_RELATIVE:
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_alRangedAssignB(src->relative, value);
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break;
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case AL_LOOPING:
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_alRangedAssignB(src->looping, value);
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break;
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case AL_PITCH:
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_alRangedAssign1(src->pitch, value, 0.0f);
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break;
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case AL_GAIN:
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_alRangedAssign1(src->gain, value, 0.0f);
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break;
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case AL_MIN_GAIN:
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_alRangedAssign2(src->min_gain, value, 0.0f, 1.0f);
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break;
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case AL_MAX_GAIN:
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_alRangedAssign2(src->max_gain, value, 0.0f, 1.0f);
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break;
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case AL_REFERENCE_DISTANCE:
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_alRangedAssign1(src->reference_distance, value, 0.0f);
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break;
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case AL_ROLLOFF_FACTOR:
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_alRangedAssign1(src->rolloff_factor, value, 0.0f);
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break;
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case AL_MAX_DISTANCE:
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_alRangedAssign1(src->max_distance, value, 0.0f);
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break;
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case AL_CONE_INNER_ANGLE:
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_alRangedAssign2(src->cone_inner_angle, value, 0.0f, 360.0f);
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break;
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case AL_CONE_OUTER_ANGLE:
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_alRangedAssign2(src->cone_outer_angle, value, 0.0f, 360.0f);
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break;
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case AL_CONE_OUTER_GAIN:
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_alRangedAssign2(src->cone_outer_gain, value, 0.0f, 1.0f);
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break;
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default:
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_alSetError(AL_INVALID_ENUM);
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break;
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}
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unlock:
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_alcUnlockContext(ctx);
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}
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ALvoid alSource3f(ALuint sid, ALenum param, ALfloat f1, ALfloat f2, ALfloat f3)
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{
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AL_context *ctx;
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AL_source *src;
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if (!(ctx = _alcCurrentContext))
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{
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_alSetError(AL_INVALID_OPERATION);
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return;
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}
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_alcLockContext(ctx);
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if (!(src = _alFindSource(ctx, sid)))
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{
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_alSetError(AL_INVALID_NAME);
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goto unlock;
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}
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switch(param)
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{
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case AL_POSITION:
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src->position[0] = f1;
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src->position[1] = f2;
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src->position[2] = f3;
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break;
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case AL_DIRECTION:
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src->direction[0] = f1;
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src->direction[1] = f2;
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src->direction[2] = f3;
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_alNormalizeDirection(src);
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break;
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case AL_VELOCITY:
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src->velocity[0] = f1;
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src->velocity[1] = f2;
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src->velocity[2] = f3;
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break;
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default:
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_alSetError(AL_INVALID_ENUM);
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break;
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}
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unlock:
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_alcUnlockContext(ctx);
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}
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ALvoid alSourcefv(ALuint sid, ALenum param, ALfloat *values)
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{
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AL_context *ctx;
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AL_source *src;
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if (!(ctx = _alcCurrentContext))
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{
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_alSetError(AL_INVALID_OPERATION);
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return;
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}
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_alcLockContext(ctx);
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if (!(src = _alFindSource(ctx, sid)))
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{
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_alSetError(AL_INVALID_NAME);
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goto unlock;
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}
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switch(param)
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{
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case AL_SOURCE_RELATIVE:
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_alRangedAssignB(src->relative, values[0]);
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break;
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case AL_LOOPING:
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_alRangedAssignB(src->looping, values[0]);
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break;
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case AL_PITCH:
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_alRangedAssign1(src->pitch, values[0], 0.0f);
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break;
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case AL_GAIN:
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_alRangedAssign1(src->gain, values[0], 0.0f);
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break;
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case AL_MIN_GAIN:
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_alRangedAssign2(src->min_gain, values[0], 0.0f, 1.0f);
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break;
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case AL_MAX_GAIN:
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_alRangedAssign2(src->max_gain, values[0], 0.0f, 1.0f);
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break;
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case AL_REFERENCE_DISTANCE:
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_alRangedAssign1(src->reference_distance, values[0], 0.0f);
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break;
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case AL_ROLLOFF_FACTOR:
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_alRangedAssign1(src->rolloff_factor, values[0], 0.0f);
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break;
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case AL_MAX_DISTANCE:
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_alRangedAssign1(src->max_distance, values[0], 0.0f);
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break;
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case AL_CONE_INNER_ANGLE:
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_alRangedAssign2(src->cone_inner_angle, values[0],
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0.0f, 360.0f);
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break;
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case AL_CONE_OUTER_ANGLE:
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_alRangedAssign2(src->cone_outer_angle, values[0],
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0.0f, 360.0f);
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break;
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case AL_CONE_OUTER_GAIN:
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_alRangedAssign2(src->cone_outer_gain, values[0], 0.0f, 1.0f);
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break;
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case AL_POSITION:
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src->position[0] = values[0];
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src->position[1] = values[1];
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src->position[2] = values[2];
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break;
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case AL_DIRECTION:
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src->direction[0] = values[0];
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src->direction[1] = values[1];
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src->direction[2] = values[2];
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_alNormalizeDirection(src);
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break;
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case AL_VELOCITY:
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src->velocity[0] = values[0];
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src->velocity[1] = values[1];
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src->velocity[2] = values[2];
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break;
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default:
|
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_alSetError(AL_INVALID_ENUM);
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break;
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}
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unlock:
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_alcUnlockContext(ctx);
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}
|
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static ALint _alBuffersQueued(AL_source *src)
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{
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AL_queue *q;
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ALint count = 0;
|
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|
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for (q = src->first_q; q; q = q->next)
|
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{
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count++;
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}
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return count;
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}
|
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|
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static ALint _alBuffersProcessed(AL_source *src)
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|
{
|
|
AL_queue *q;
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ALint count = 0;
|
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|
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for (q = src->first_q; q; q = q->next)
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{
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if (q->state != AL_PROCESSED)
|
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{
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break;
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}
|
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count++;
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}
|
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|
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return count;
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}
|
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|
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ALvoid alGetSourcei(ALuint sid, ALenum param, ALint *value)
|
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{
|
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ALint values[3];
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|
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values[0] = *value;
|
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alGetSourceiv(sid, param, values);
|
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*value = values[0];
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}
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|
|
ALvoid alGetSourceiv(ALuint sid, ALenum param, ALint *values)
|
|
{
|
|
AL_context *ctx;
|
|
AL_source *src;
|
|
|
|
if (!(ctx = _alcCurrentContext))
|
|
{
|
|
_alSetError(AL_INVALID_OPERATION);
|
|
return;
|
|
}
|
|
|
|
_alcLockContext(ctx);
|
|
|
|
if (!(src = _alFindSource(ctx, sid)))
|
|
{
|
|
_alSetError(AL_INVALID_NAME);
|
|
goto unlock;
|
|
}
|
|
|
|
switch(param)
|
|
{
|
|
case AL_SOURCE_RELATIVE:
|
|
values[0] = src->relative;
|
|
break;
|
|
case AL_SOURCE_STATE:
|
|
values[0] = src->state;
|
|
break;
|
|
case AL_LOOPING:
|
|
values[0] = src->looping;
|
|
break;
|
|
case AL_PITCH:
|
|
values[0] = (ALint)src->pitch;
|
|
break;
|
|
case AL_GAIN:
|
|
values[0] = (ALint)src->gain;
|
|
break;
|
|
case AL_MIN_GAIN:
|
|
values[0] = (ALint)src->min_gain;
|
|
break;
|
|
case AL_MAX_GAIN:
|
|
values[0] = (ALint)src->max_gain;
|
|
break;
|
|
case AL_REFERENCE_DISTANCE:
|
|
values[0] = (ALint)src->reference_distance;
|
|
break;
|
|
case AL_ROLLOFF_FACTOR:
|
|
values[0] = (ALint)src->rolloff_factor;
|
|
break;
|
|
case AL_MAX_DISTANCE:
|
|
values[0] = (ALint)src->max_distance;
|
|
break;
|
|
case AL_CONE_INNER_ANGLE:
|
|
values[0] = (ALint)src->cone_inner_angle;
|
|
break;
|
|
case AL_CONE_OUTER_ANGLE:
|
|
values[0] = (ALint)src->cone_outer_angle;
|
|
break;
|
|
case AL_CONE_OUTER_GAIN:
|
|
values[0] = (ALint)src->cone_outer_gain;
|
|
break;
|
|
case AL_POSITION:
|
|
values[0] = (ALint)src->position[0];
|
|
values[1] = (ALint)src->position[1];
|
|
values[2] = (ALint)src->position[2];
|
|
break;
|
|
case AL_DIRECTION:
|
|
values[0] = (ALint)src->direction[0];
|
|
values[1] = (ALint)src->direction[1];
|
|
values[2] = (ALint)src->direction[2];
|
|
break;
|
|
case AL_VELOCITY:
|
|
values[0] = (ALint)src->velocity[0];
|
|
values[1] = (ALint)src->velocity[1];
|
|
values[2] = (ALint)src->velocity[2];
|
|
break;
|
|
case AL_BUFFER:
|
|
values[0] = src->buffer ? src->buffer->id : 0;
|
|
break;
|
|
case AL_BUFFERS_QUEUED:
|
|
values[0] = _alBuffersQueued(src);
|
|
break;
|
|
case AL_BUFFERS_PROCESSED:
|
|
values[0] = _alBuffersProcessed(src);
|
|
break;
|
|
default:
|
|
_alSetError(AL_INVALID_ENUM);
|
|
break;
|
|
}
|
|
|
|
unlock:
|
|
_alcUnlockContext(ctx);
|
|
}
|
|
|
|
ALvoid alGetSourcef(ALuint sid, ALenum param, ALfloat *value)
|
|
{
|
|
ALfloat values[3];
|
|
|
|
values[0] = *value;
|
|
alGetSourcefv(sid, param, values);
|
|
*value = values[0];
|
|
}
|
|
|
|
ALvoid alGetSource3f(ALuint sid, ALenum param,
|
|
ALfloat *f1, ALfloat *f2, ALfloat *f3)
|
|
{
|
|
ALfloat values[6];
|
|
|
|
values[0] = *f1;
|
|
values[1] = *f2;
|
|
values[2] = *f3;
|
|
|
|
alGetSourcefv(sid, param, values);
|
|
|
|
*f1 = values[0];
|
|
*f2 = values[1];
|
|
*f3 = values[2];
|
|
}
|
|
|
|
ALvoid alGetSourcefv(ALuint sid, ALenum param, ALfloat* values)
|
|
{
|
|
AL_context *ctx;
|
|
AL_source *src;
|
|
|
|
if (!(ctx = _alcCurrentContext))
|
|
{
|
|
_alSetError(AL_INVALID_OPERATION);
|
|
return;
|
|
}
|
|
|
|
_alcLockContext(ctx);
|
|
|
|
if (!(src = _alFindSource(ctx, sid)))
|
|
{
|
|
_alSetError(AL_INVALID_NAME);
|
|
goto unlock;
|
|
}
|
|
|
|
switch(param)
|
|
{
|
|
case AL_SOURCE_RELATIVE:
|
|
values[0] = src->relative;
|
|
break;
|
|
case AL_SOURCE_STATE:
|
|
values[0] = (ALfloat)src->state;
|
|
break;
|
|
case AL_LOOPING:
|
|
values[0] = (ALfloat)src->looping;
|
|
break;
|
|
case AL_PITCH:
|
|
values[0] = src->pitch;
|
|
break;
|
|
case AL_GAIN:
|
|
values[0] = src->gain;
|
|
break;
|
|
case AL_MIN_GAIN:
|
|
values[0] = src->min_gain;
|
|
break;
|
|
case AL_MAX_GAIN:
|
|
values[0] = src->max_gain;
|
|
break;
|
|
case AL_REFERENCE_DISTANCE:
|
|
values[0] = src->reference_distance;
|
|
break;
|
|
case AL_ROLLOFF_FACTOR:
|
|
values[0] = src->rolloff_factor;
|
|
break;
|
|
case AL_MAX_DISTANCE:
|
|
values[0] = src->max_distance;
|
|
break;
|
|
case AL_CONE_INNER_ANGLE:
|
|
values[0] = src->cone_inner_angle;
|
|
break;
|
|
case AL_CONE_OUTER_ANGLE:
|
|
values[0] = src->cone_outer_angle;
|
|
break;
|
|
case AL_CONE_OUTER_GAIN:
|
|
values[0] = src->cone_outer_gain;
|
|
break;
|
|
case AL_POSITION:
|
|
values[0] = src->position[0];
|
|
values[1] = src->position[1];
|
|
values[2] = src->position[2];
|
|
break;
|
|
case AL_DIRECTION:
|
|
values[0] = src->direction[0];
|
|
values[1] = src->direction[1];
|
|
values[2] = src->direction[2];
|
|
break;
|
|
case AL_VELOCITY:
|
|
values[0] = src->velocity[0];
|
|
values[1] = src->velocity[1];
|
|
values[2] = src->velocity[2];
|
|
break;
|
|
case AL_BUFFERS_QUEUED:
|
|
values[0] = (ALfloat)_alBuffersQueued(src);
|
|
break;
|
|
case AL_BUFFERS_PROCESSED:
|
|
values[0] = (ALfloat)_alBuffersProcessed(src);
|
|
break;
|
|
default:
|
|
_alSetError(AL_INVALID_ENUM);
|
|
break;
|
|
}
|
|
|
|
unlock:
|
|
_alcUnlockContext(ctx);
|
|
}
|
|
|
|
ALvoid alSourceQueueBuffers(ALuint sid, ALsizei n, ALuint *buffers)
|
|
{
|
|
AL_context *ctx;
|
|
AL_source *src;
|
|
ALsizei i;
|
|
AL_queue *first_q;
|
|
AL_queue **last_q;
|
|
|
|
if (n == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (n < 0)
|
|
{
|
|
_alSetError(AL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
|
|
if (!(ctx = _alcCurrentContext))
|
|
{
|
|
_alSetError(AL_INVALID_OPERATION);
|
|
return;
|
|
}
|
|
|
|
_alcLockContext(ctx);
|
|
|
|
if (!(src = _alFindSource(ctx, sid)))
|
|
{
|
|
_alSetError(AL_INVALID_NAME);
|
|
goto unlock;
|
|
}
|
|
|
|
first_q = 0;
|
|
last_q = &first_q;
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
AL_buffer *buf;
|
|
AL_queue *que;
|
|
|
|
if (!buffers[i])
|
|
continue;
|
|
|
|
if (!(buf = _alLockBuffer(buffers[i])))
|
|
{
|
|
while ((que = first_q))
|
|
{
|
|
first_q = que->next;
|
|
_alUnlockBuffer(que->buffer);
|
|
free(que);
|
|
}
|
|
|
|
_alSetError(AL_INVALID_NAME);
|
|
goto unlock;
|
|
}
|
|
|
|
if (!(que = malloc(sizeof(AL_queue))))
|
|
{
|
|
while ((que = first_q))
|
|
{
|
|
first_q = que->next;
|
|
_alUnlockBuffer(que->buffer);
|
|
free(que);
|
|
}
|
|
|
|
_alSetError(AL_OUT_OF_MEMORY);
|
|
goto unlock;
|
|
}
|
|
|
|
que->next = 0;
|
|
que->buffer = buf;
|
|
que->state = AL_PENDING;
|
|
|
|
*last_q = que;
|
|
last_q = &que->next;
|
|
}
|
|
|
|
if (first_q)
|
|
{
|
|
*src->last_q = first_q;
|
|
src->last_q = last_q;
|
|
}
|
|
|
|
unlock:
|
|
_alcUnlockContext(ctx);
|
|
}
|
|
|
|
|
|
ALvoid alSourceUnqueueBuffers(ALuint sid, ALsizei n, ALuint *buffers)
|
|
{
|
|
AL_context *ctx;
|
|
AL_source *src;
|
|
ALsizei i;
|
|
|
|
if (n == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (n < 0)
|
|
{
|
|
_alSetError(AL_INVALID_VALUE);
|
|
return;
|
|
}
|
|
|
|
if (!(ctx = _alcCurrentContext))
|
|
{
|
|
_alSetError(AL_INVALID_OPERATION);
|
|
return;
|
|
}
|
|
|
|
_alcLockContext(ctx);
|
|
|
|
if (!(src = _alFindSource(ctx, sid)))
|
|
{
|
|
_alSetError(AL_INVALID_NAME);
|
|
goto unlock;
|
|
}
|
|
|
|
if (_alBuffersProcessed(src) < n)
|
|
{
|
|
_alSetError(AL_INVALID_OPERATION);
|
|
goto unlock;
|
|
}
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
AL_queue *que = src->first_q;
|
|
|
|
src->first_q = que->next;
|
|
|
|
buffers[i] = que->buffer->id;
|
|
|
|
_alUnlockBuffer(que->buffer);
|
|
free(que);
|
|
}
|
|
|
|
unlock:
|
|
_alcUnlockContext(ctx);
|
|
}
|