author | koda |
Thu, 22 Apr 2010 17:43:12 +0000 | |
changeset 3364 | e5403e2bf02c |
parent 3362 | 8d3b4d19ce27 |
child 3487 | b1d00f1950c8 |
permissions | -rw-r--r-- |
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/* |
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* OpenAL Bridge - a simple portable library for OpenAL interface |
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* Copyright (c) 2009 Vittorio Giovara <vittorio.giovara@gmail.com> |
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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 Lesser General Public License as published by |
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* the Free Software Foundation; version 2 of the License |
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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 Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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*/ |
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#include "wrappers.h" |
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#include "openalbridge_t.h" |
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extern ALint *Sources; |
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void *Malloc (size_t nbytes) { |
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void *aptr; |
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if ((aptr = malloc(nbytes)) == NULL) { |
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fprintf(stderr,"(Bridge Fatal Error) - not enough memory"); |
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abort(); |
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} |
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||
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return aptr; |
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} |
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||
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void *Realloc (void *aptr, size_t nbytes) { |
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aptr = realloc(aptr, nbytes); |
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if (aptr == NULL) { |
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fprintf(stderr,"(Bridge Fatal Error) - not enough memory"); |
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abort(); |
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} |
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return aptr; |
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} |
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FILE *Fopen (const char *fname, char *mode) { |
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FILE *fp; |
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fp = fopen(fname,mode); |
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if (fp == NULL) |
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fprintf(stderr,"(Bridge Error) - can't open file %s in mode '%s'", fname, mode); |
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return fp; |
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} |
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void helper_fade(void *tmp) { |
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ALfloat gain; |
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ALfloat target_gain; |
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fade_t *fade; |
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uint32_t index; |
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uint16_t quantity; |
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al_fade_t type; |
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fade = tmp; |
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index = fade->index; |
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quantity = fade->quantity; |
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type = fade->type; |
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free (fade); |
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if (type == AL_FADE_IN) { |
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#ifdef DEBUG |
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err_msg("(%s) INFO - Fade-in in progress [index %d quantity %d]", prog, index, quantity); |
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#endif |
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// save the volume desired after the fade |
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alGetSourcef(Sources[index], AL_GAIN, &target_gain); |
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if (target_gain > 1.0f || target_gain <= 0.0f) |
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target_gain = 1.0f; |
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alSourcePlay(Sources[index]); |
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for (gain = 0.0f ; gain <= target_gain; gain += (float) quantity/10000) { |
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#ifdef TRACE |
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err_msg("(%s) DEBUG - Fade-in set gain to %f", gain); |
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#endif |
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alSourcef(Sources[index], AL_GAIN, gain); |
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usleep(10000); |
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} |
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} else { |
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alGetSourcef(Sources[index], AL_GAIN, &target_gain); |
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for (gain = target_gain; gain >= 0.00f; gain -= (float) quantity/10000) { |
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#ifdef TRACE |
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err_msg("(%s) DEBUG - Fade-out set gain to %f", gain); |
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#endif |
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alSourcef(Sources[index], AL_GAIN, gain); |
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usleep(10000); |
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} |
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if (AL_NO_ERROR != alGetError()) |
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fprintf(stderr,"(Bridge Warning) - Failed to set fade-out effect"); |
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// stop that sound and reset its volume |
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alSourceStop (Sources[index]); |
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alSourcef (Sources[index], AL_GAIN, target_gain); |
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} |
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if (AL_NO_ERROR != alGetError()) |
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fprintf(stderr,"(Bridge Warning) - Failed to set fade effect"); |
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#ifndef _WIN32 |
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pthread_exit(NULL); |
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#else |
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_endthread(); |
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#endif |
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} |
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