openalbridge/openalwrap.c
author nemo
Sun, 28 Jun 2009 14:39:18 +0000
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some win32 dll export thingy.
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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 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 */
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#include "openalwrap.h"
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#ifdef __CPLUSPLUS
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extern "C" {
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#endif 
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	typedef struct _fade_t {
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		int index;
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		unsigned int quantity;
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	} fade_t;
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	// Sources are points emitting sound.
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	ALuint *Sources;
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	// Buffers hold sound data.
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	ALuint *Buffers;
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	//index for Sources and Buffers
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	ALuint globalindex, globalsize;
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	// Position of the source sound.
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	ALfloat **SourcePos;
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	// Velocity of the source sound.
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	ALfloat **SourceVel;
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	ALint openal_close(void) {
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		/* This function stops all the sounds, deallocates all memory and closes OpenAL */
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		int i;
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		ALCcontext *context;
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		ALCdevice  *device;
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		alSourceStopv	(globalsize, Sources);
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		alDeleteSources (globalsize, Sources);
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		alDeleteBuffers (globalsize, Buffers);
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		for (i = 0; i < globalsize; i++) {
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			free(SourcePos[i]);
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			free(SourceVel[i]);
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		}
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		free(SourcePos);
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		free(SourceVel);
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		free(Sources);
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		free(Buffers);
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		context = alcGetCurrentContext();
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		device  = alcGetContextsDevice(context);
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		alcMakeContextCurrent(NULL);
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		alcDestroyContext(context);
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		alcCloseDevice(device);
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		return AL_TRUE;
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	}
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	ALint openal_init(int memorysize) {	
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		/* This function initializes an OpenAL contex, allocates memory space for data and prepares OpenAL buffers*/
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		ALCcontext *context;
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		ALCdevice *device;
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		const ALCchar *default_device;
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		// Position of the listener.
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		ALfloat ListenerPos[] = { 0.0, 0.0, 0.0 };
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		// Velocity of the listener.
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		ALfloat ListenerVel[] = { 0.0, 0.0, 0.0 };
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		// Orientation of the listener. (first 3 elements are "at", second 3 are "up")
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		ALfloat ListenerOri[] = { 0.0, 0.0, -1.0,  0.0, 1.0, 0.0 };
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		default_device = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
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		fprintf(stderr, "Using default device: %s\n", default_device);
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		if ((device = alcOpenDevice(default_device)) == NULL) {
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			fprintf(stderr, "ERROR: Failed to open sound device\n");
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			return AL_FALSE;
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		}
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		context = alcCreateContext(device, NULL);
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		alcMakeContextCurrent(context);
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		alcProcessContext(context);
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		if (AlGetError("ERROR %d: Creating a new contex\n") != AL_TRUE)
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			return AL_FALSE;
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		//allocate memory space for buffers and sources
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		globalsize = memorysize;
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		Buffers   = (ALuint*)   Malloc(sizeof(ALuint  )*globalsize);
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		Sources   = (ALuint*)   Malloc(sizeof(ALuint  )*globalsize);
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		SourcePos = (ALfloat**) Malloc(sizeof(ALfloat*)*globalsize);
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		SourceVel = (ALfloat**) Malloc(sizeof(ALfloat*)*globalsize);
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		//set the listener gain, position (on xyz axes), velocity (one value for each axe) and orientation
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		alListenerf (AL_GAIN,		 1.0f		);
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		alListenerfv(AL_POSITION,    ListenerPos);
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		alListenerfv(AL_VELOCITY,    ListenerVel);
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		alListenerfv(AL_ORIENTATION, ListenerOri);
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		if (AlGetError("ERROR %d: Setting Listener properties\n") != AL_TRUE)
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			return AL_FALSE;
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		alGetError();  /* clear any AL errors beforehand */
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		return AL_TRUE;
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	}
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	int openal_loadfile (const char *filename){
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		/* This function opens a file, loads into memory and allocates the Source buffer for playing*/
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		ALenum format;
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		ALsizei bitsize;
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		ALsizei freq;
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		uint8_t *data;
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		uint32_t fileformat;
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		int i, error;
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		FILE *fp;
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		/*detect the file format, as written in the first 4 bytes of the header*/
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		fp = Fopen (filename, "rb");
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		if (fp == NULL)
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			return -1;
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		error = fread (&fileformat, sizeof(uint32_t), 1, fp);
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		fclose (fp);
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		if (error < 0) {
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			fprintf(stderr, "ERROR: file %s is too short \n", filename);
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			return -2;
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		}
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		//prepare the buffers to receive data
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		alGenBuffers(1, &Buffers[globalindex]);
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		if (AlGetError("ERROR %d: Allocating memory for buffers\n") != AL_TRUE)
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			return -3;
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		//prepare the sources to emit sound
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		alGenSources(1, &Sources[globalindex]);
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		if (AlGetError("ERROR %d: Allocating memory for sources\n") != AL_TRUE)
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			return -4;
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		if (fileformat == 0x5367674F) //check if ogg
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			error = load_OggVorbis (filename, &format, &data, &bitsize, &freq);
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		else {
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			if (fileformat == 0x46464952) //check if wav
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				error = load_WavPcm (filename, &format, &data, &bitsize, &freq);
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			else {
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				fprintf(stderr, "ERROR: File format (%08X) not supported!\n", invert_endianness(fileformat));
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				return -5;
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			}
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		}
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		//copy pcm data in one buffer
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		alBufferData(Buffers[globalindex], format, data, bitsize, freq);
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		free(data);		//deallocate data to save memory
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		if (AlGetError("ERROR %d: Writing data to buffer\n") != AL_TRUE)
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			return -5;
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		//memory allocation for source position and velocity
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		SourcePos[globalindex] = (ALfloat*) Malloc(sizeof(ALfloat)*3);
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		SourceVel[globalindex] = (ALfloat*) Malloc(sizeof(ALfloat)*3);
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		if (SourcePos[globalindex] == NULL || SourceVel[globalindex] == NULL)
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			return -6;
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		//source properties that it will use when it's in playback
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		for (i = 0; i < 3; i++) {
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			SourcePos[globalindex][i] = 0.0;
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			SourceVel[globalindex][i] = 0.1;
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		}	
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		alSourcei (Sources[globalindex], AL_BUFFER,   Buffers[globalindex]  );
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		alSourcef (Sources[globalindex], AL_PITCH,    1.0f					);
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		alSourcef (Sources[globalindex], AL_GAIN,     1.0f					);
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		alSourcefv(Sources[globalindex], AL_POSITION, SourcePos[globalindex]);
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		alSourcefv(Sources[globalindex], AL_VELOCITY, SourceVel[globalindex]);
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		alSourcei (Sources[globalindex], AL_LOOPING,  0						);
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		if (AlGetError("ERROR %d: Setting source properties\n") != AL_TRUE)
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			return -7;
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		alGetError();  /* clear any AL errors beforehand */
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		//returns the index of the source you just loaded, increments it and exits
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		return globalindex++;
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	}
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	ALint openal_toggleloop (int index){
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		/*Set or unset looping mode*/
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		ALint loop;
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		if (index >= globalsize) {
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			fprintf(stderr, "ERROR: index out of bounds (got %d, max %d)", index, globalindex);
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			return AL_FALSE;
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		}
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		alGetSourcei (Sources[index], AL_LOOPING, &loop);
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		alSourcei (Sources[index], AL_LOOPING, !((uint8_t) loop) & 0x00000001);
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		if (AlGetError("ERROR %d: Getting or setting loop property\n") != AL_TRUE)
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			return AL_FALSE;
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		alGetError();  /* clear any AL errors beforehand */
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		return AL_TRUE;
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	}
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	ALint openal_setvolume (int index, unsigned char percentage) {
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		/*Set volume for sound number index*/
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		if (index >= globalindex) {
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			fprintf(stderr, "ERROR: index out of bounds (got %d, max %d)", index, globalindex);
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			return AL_FALSE;
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		}
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		if (percentage > 100)
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			percentage = 100;
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		alSourcef (Sources[index], AL_GAIN, (ALfloat) percentage/100.0f);
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		if (AlGetError("ERROR %d: Setting volume for last sound\n") != AL_TRUE)
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			return AL_FALSE;
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		alGetError();  /* clear any AL errors beforehand */
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		return AL_TRUE;
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	}
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	ALint openal_setglobalvolume (unsigned char percentage) {
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		/*Set volume for all sounds*/		
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		if (percentage > 100)
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			percentage = 100;
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		alListenerf (AL_GAIN, (ALfloat) percentage/100.0f);
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		if (AlGetError("ERROR %d: Setting global volume\n") != AL_TRUE)
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			return AL_FALSE;
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		alGetError();  /* clear any AL errors beforehand */
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		return AL_TRUE;
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	}
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	ALint openal_togglemute () {
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		/*Mute or unmute sound*/
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		ALfloat mute;
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		alGetListenerf (AL_GAIN, &mute);
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		if (mute > 0) 
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			mute = 0;
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		else
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			mute = 1.0;
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		alListenerf (AL_GAIN, mute);
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		if (AlGetError("ERROR %d: Setting mute property\n") != AL_TRUE)
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			return AL_FALSE;
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		alGetError();  /* clear any AL errors beforehand */
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		return AL_TRUE;
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	}
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#ifndef _WIN32
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	void *helper_fadeout(void *tmp) {
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#else
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	void WINAPI helper_fadeout(void *tmp) {	
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#endif
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		ALfloat gain;
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		fade_t *fade;
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		int index; 
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		unsigned int quantity; 
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		fade = tmp;
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		index = fade->index;
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		quantity = fade->quantity;
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		alGetSourcef(Sources[index], AL_GAIN, &gain);
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		for ( ; gain >= 0.00f; gain -= (float) quantity/10000){
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#ifdef DEBUG
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			fprintf(stderr, "Fade-out: Set gain to %f\n", 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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		AlGetError("ERROR %d: Setting fade out volume\n");
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		//stop that sound and reset its gain
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		alSourceStop (Sources[index]);
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		alSourcef (Sources[index], AL_GAIN, 1.0f);	
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#ifndef _WIN32
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		pthread_exit(NULL);
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#else
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		free(fade);
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		_endthread();
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#endif
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	}
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	ALint openal_fadeout(int index, unsigned int quantity) {
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#ifndef _WIN32
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		pthread_t thread;
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		fade_t fade;
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		fade.index = index;
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		fade.quantity = quantity;
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#else
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		HANDLE Thread;
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		DWORD threadID;
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		fade_t *fade = malloc(sizeof(fade_t));
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		fade->index = index;
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   323
		fade->quantity = quantity;
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   324
#endif
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   325
2191
20c62f787a4d koda's OpenAL conversion:
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   326
		if (index >= globalindex) {
20c62f787a4d koda's OpenAL conversion:
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parents:
diff changeset
   327
			fprintf(stderr, "ERROR: index out of bounds (got %d, max %d)", index, globalindex);
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parents:
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   328
			return AL_FALSE;
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parents:
diff changeset
   329
		}
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parents:
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   330
		
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   331
		
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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   332
#ifndef _WIN32
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   333
		pthread_create(&thread, NULL, helper_fadeout, (void*) &fade);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   334
		pthread_detach(thread);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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   335
#else
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   336
		Thread = _beginthread(&helper_fadeout, 0, (void*) fade);
2191
20c62f787a4d koda's OpenAL conversion:
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   337
#endif
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   338
		
20c62f787a4d koda's OpenAL conversion:
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   339
		alGetError();  /* clear any AL errors beforehand */
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parents:
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   340
20c62f787a4d koda's OpenAL conversion:
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parents:
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   341
		return AL_TRUE;
20c62f787a4d koda's OpenAL conversion:
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parents:
diff changeset
   342
	}
2194
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   343
		
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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   344
#ifndef _WIN32
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   345
		void *helper_fadein(void *tmp) 
2194
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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   346
#else
2200
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diff changeset
   347
		void WINAPI helper_fadein(void *tmp) 
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   348
#endif
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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   349
		{
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   350
			ALfloat gain;
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   351
			fade_t *fade;
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   352
			int index; 
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   353
			unsigned int quantity; 
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   354
			
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   355
			fade = tmp;
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   356
			index = fade->index;
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   357
			quantity = fade->quantity;
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   358
			
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   359
			gain = 0.0f;
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   360
			alSourcef(Sources[index], AL_GAIN, gain);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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parents: 2191
diff changeset
   361
			alSourcePlay(Sources[index]);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   362
			
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
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diff changeset
   363
			for ( ; gain <= 1.00f; gain += (float) quantity/10000){
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
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diff changeset
   364
#ifdef DEBUG
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   365
				fprintf(stderr, "Fade-in: Set gain to: %f\n", gain);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
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diff changeset
   366
#endif
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   367
				alSourcef(Sources[index], AL_GAIN, gain);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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parents: 2191
diff changeset
   368
				usleep(10000);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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parents: 2191
diff changeset
   369
			}
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   370
			
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   371
			if (AlGetError("ERROR %d: Setting fade in volume\n") != AL_TRUE)
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   372
				return AL_FALSE;
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   373
			
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
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diff changeset
   374
#ifndef _WIN32
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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   375
			pthread_exit(NULL);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   376
#else
2200
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
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diff changeset
   377
			free(fade);
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
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diff changeset
   378
			_endthread();
2194
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   379
#endif
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   380
		}
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   381
			
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
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diff changeset
   382
		
2191
20c62f787a4d koda's OpenAL conversion:
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parents:
diff changeset
   383
	ALint openal_fadein(int index, unsigned int quantity) {
2194
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   384
#ifndef _WIN32
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
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diff changeset
   385
		pthread_t thread;
2200
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
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diff changeset
   386
		fade_t fade;
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
nemo
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diff changeset
   387
		fade.index = index;
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
nemo
parents: 2194
diff changeset
   388
		fade.quantity = quantity;
2194
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   389
#else
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   390
		HANDLE Thread;
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   391
		DWORD threadID;
2200
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
nemo
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diff changeset
   392
		fade_t *fade = malloc(sizeof(fade_t));
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
nemo
parents: 2194
diff changeset
   393
		fade->index = index;
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
nemo
parents: 2194
diff changeset
   394
		fade->quantity = quantity;
2194
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   395
#endif
2191
20c62f787a4d koda's OpenAL conversion:
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parents:
diff changeset
   396
		
20c62f787a4d koda's OpenAL conversion:
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parents:
diff changeset
   397
		if (index >= globalindex) {
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   398
			fprintf(stderr, "ERROR: index out of bounds (got %d, max %d)", index, globalindex);
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   399
			return AL_FALSE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   400
		}
2200
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
nemo
parents: 2194
diff changeset
   401
				
2194
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   402
#ifndef _WIN32
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   403
		pthread_create(&thread, NULL, helper_fadein, (void*) &fade);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   404
		pthread_detach(thread);
1597710c6118 koda adds threading for fadein/out. Untested under windows, but works beautifully under Linux (and presumably OSX, right koda?)
nemo
parents: 2191
diff changeset
   405
#else
2200
8192be6e3aef koda/Smaxx changes to openal for crossplatform building
nemo
parents: 2194
diff changeset
   406
		Thread = _beginthread(&helper_fadein, 0, (void*) fade);
2191
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   407
#endif
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   408
		
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   409
		alGetError();  /* clear any AL errors beforehand */
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   410
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   411
		return AL_TRUE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   412
	}
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   413
	
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   414
	
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   415
	ALint openal_playsound(int index){
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   416
		/*Play sound number index*/
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   417
		if (index >= globalindex) {
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   418
			fprintf(stderr, "ERROR: index out of bounds (got %d, max %d)", index, globalindex);
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   419
			return AL_FALSE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   420
		}
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   421
		alSourcePlay(Sources[index]);
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   422
		if (AlGetError("ERROR %d: Playing last sound\n") != AL_TRUE)
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   423
			return AL_FALSE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   424
		
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   425
		alGetError();  /* clear any AL errors beforehand */
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   426
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   427
		return AL_TRUE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   428
	}
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   429
	
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   430
	
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   431
	ALint openal_pausesound(int index){
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   432
		/*Pause sound number index*/
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   433
		if (index >= globalindex) {
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   434
			fprintf(stderr, "ERROR: index out of bounds (got %d, max %d)", index, globalindex);
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   435
			return AL_FALSE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   436
		}
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   437
		alSourcePause(Sources[index]);
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   438
		if (AlGetError("ERROR %d: Pausing last sound\n") != AL_TRUE)
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   439
			return AL_FALSE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   440
		
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   441
		return AL_TRUE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   442
	}
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   443
	
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   444
	
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   445
	ALint openal_stopsound(int index){
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   446
		/*Stop sound number index*/
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   447
		if (index >= globalindex) {
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   448
			fprintf(stderr, "ERROR: index out of bounds (got %d, max %d)", index, globalindex);
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   449
			return AL_FALSE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   450
		}
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   451
		alSourceStop(Sources[index]);
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   452
		if (AlGetError("ERROR %d: Stopping last sound\n") != AL_TRUE)
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   453
			return AL_FALSE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   454
		
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   455
		alGetError();  /* clear any AL errors beforehand */
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   456
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   457
		return AL_TRUE;
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   458
	}
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   459
	
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   460
#ifdef __CPLUSPLUS
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   461
}
20c62f787a4d koda's OpenAL conversion:
unc0rr
parents:
diff changeset
   462
#endif