Installing BlitzMax on Ubuntu 12.10 (64-bit)

Archives Forums/Linux Discussion/Installing BlitzMax on Ubuntu 12.10 (64-bit)

Dinosorceror

(Posted 2012) [#1]

Hello everyone! I thought for convenience, I'd create a new post to coordinate previous information posted on the forum regarding earlier versions of Ubuntu, and provided an updated cheat-sheet for getting BlitzMax running on the current latest, Ubuntu 12.10 (the 64-bit version).

Here is the list of commands you must use to get BlitzMax running. Some could be re-arranged, but I've just done a fresh install as listed, and I figured I'd include the ones for the PulseAudio driver separate and last in case someone wanted to modify this cheat sheet for a different audio driver.

sudo apt-get install ia32-libs-multiarch g++-multilib build-essential

sudo apt-get install libglu1-mesa-dev x11proto-core-dev x11proto-gl-dev x11proto-kb-dev libxxf86vm-dev libasound2-dev libfreetype6-dev libxpm-dev libxft-dev

sudo apt-get update

sudo ln -s /usr/lib/i386-linux-gnu/mesa/libGL.so.1.2.0 /usr/lib32/libGL.so
sudo ln -s /usr/lib/i386-linux-gnu/libGLU.so.1.3.1 /usr/lib32/libGLU.so
sudo ln -s /usr/lib/i386-linux-gnu/libX11.so.6.3.0 /usr/lib32/libX11.so
sudo ln -s /usr/lib/i386-linux-gnu/libfreetype.so.6.9.0 /usr/lib32/libfreetype.so
sudo ln -s /usr/lib/i386-linux-gnu/libXxf86vm.so.1.0.0 /usr/lib32/libXxf86vm.so
sudo ln -s /usr/lib/i386-linux-gnu/libXft.so.2.3.1 /usr/lib32/libXft.so
sudo ln -s /usr/lib/i386-linux-gnu/libXpm.so.4.11.0 /usr/lib32/libXpm.so
    (Check versions of above files to update links if necessary)

sudo apt-get install libpulse-dev

sudo ln -s /usr/lib/i386-linux-gnu/libpulse-simple.so.0.0.3 /usr/lib32/libpulse-simple.so
    (Check version again)

Drop in BlitzMax/mod/pub.mod/freeaudio.mod/pulseaudiodevice.cpp as following:

// pulseaudiodevice.cpp
// sudo apt-get install libpulse-dev

#ifdef __linux

#include "freeaudio.h"

#include <unistd.h>
#include <pulse/simple.h>
#include <pthread.h>

extern "C" audiodevice *OpenPulseAudioDevice();

void *pulseaudiothread(void*dev);

#define LINUXFRAG 2048

struct pulseaudiodevice:audiodevice{
	pthread_t audiothread;
	int threadid;

	int running;
	int playing;
	int error;

	short *buffer;
	int buffersize;	//in bytes
		
	pa_simple *simple;
	
	static void *pulseaudiothread(void *arg){
		pulseaudiodevice* audio;
		audio=(pulseaudiodevice*)arg;
		audio->run();
		return 0;
	}
		
	int reset(){
	
		pa_sample_spec stereo16;
	
		running=0;
		playing=0;
		
		stereo16.format=PA_SAMPLE_S16LE;
		stereo16.rate=44100;
		stereo16.channels=2;

		simple=pa_simple_new(NULL,"freeaudio",PA_STREAM_PLAYBACK,NULL,"playback",&stereo16,NULL,NULL,&error);
		if (simple==NULL) return -1;

		mix=new mixer(LINUXFRAG);
		mix->freq=44100;
		mix->channels=2;

		buffer=new short[LINUXFRAG];
		buffersize=LINUXFRAG*2;

		pthread_attr_t	attr;
		pthread_attr_init(&attr);

		running=1;
		threadid=pthread_create(&audiothread,&attr,pulseaudiothread,(void*)this);	
		return 0;
	}
	
	int close(){	
		int timeout;
		running=0;
		timeout=500;
		while (timeout-- && playing){
			usleep( 10*1000 );
		}
		pa_simple_free(simple);
		return 0;
	}

	void run(){
		int data;
		int res;
		
		playing=1;
		while (playing && running){
			mix->mix16(buffer);
			int err=pa_simple_write(simple, buffer, buffersize, &error);
			if (err<0) break;			
		}
		playing=0;
	}

};

audiodevice *OpenPulseAudioDevice(){
	return new pulseaudiodevice();
}

#endif

Replace BlitzMax/mod/pub.mod/freeaudio.mod/freeaudio.bmx with the following, and back up the original:


Module Pub.FreeAudio

ModuleInfo "Version: 1.23"
ModuleInfo "Author: Simon Armstrong"
ModuleInfo "License: Public Domain"
ModuleInfo "Copyright: Blitz Research Ltd"
ModuleInfo "Modserver: BRL"

ModuleInfo "History: 1.23 Release"
ModuleInfo "History: Added PulseAudio driver as default Linux sound driver"
ModuleInfo "History: 1.22 Release"
ModuleInfo "History: Fixed leak with sound recycling"
ModuleInfo "History: 1.21 Release"
ModuleInfo "History: Fixed reference counting for brl.freeaudioaudio"
ModuleInfo "History: 1.20 Release"
ModuleInfo "History: Removed duplication of sample memory"
ModuleInfo "History: 1.19 Release"
ModuleInfo "History: Added DirectSound mode"
ModuleInfo "History: 1.18 Release"
ModuleInfo "History: added fa_ChannelPosition for live sample generation"
ModuleInfo "History: 1.17 Release"
ModuleInfo "History: added check for windows playback position overflow"
ModuleInfo "History: 1.15 Release"
ModuleInfo "History: added low latency windows98 fix"
ModuleInfo "History: 1.14 Release"
ModuleInfo "History: fixed 1.13 recycling of stopped channels fix"
ModuleInfo "History: 1.13 Release"
ModuleInfo "History: fixed recycling of stopped channels"
ModuleInfo "History: 1.12 Release"
ModuleInfo "History: Uses linear interpolation for improved fidelity at low rates"
ModuleInfo "History: 1.11 Release"
ModuleInfo "History: Fixed freepool sounds Not resetting parameters - thanks To Fetze"
ModuleInfo "History: 1.10 Release"
ModuleInfo "History: Added ALSA support for Linux courtesy Craig Kiesau"
ModuleInfo "History: 1.09 Release"
ModuleInfo "History: Improved channel playback timing"
ModuleInfo "History: 1.08 Release"
ModuleInfo "History: Fixed memory leak in fa_FreeSound()"
ModuleInfo "History: 1.07 Release"
ModuleInfo "History: Removed output transitions for queued/paused sounds"
ModuleInfo "History: 1.06 Release"
ModuleInfo "History: Windows device error now silently fails"
ModuleInfo "History: 1.05 Release"
ModuleInfo "History: Linux version now opens audio device on second thread"
ModuleInfo "History: 1.04 Release"
ModuleInfo "History: Removed Linux debug output"

Import "freeaudio.cpp"
Import "freeaudioglue.cpp"

?Win32
Import "dsounddevice.cpp"
Import "mmdevice.cpp"
Extern "C"
Function OpenMultiMediaDevice()
Function OpenDirectSoundDevice()
End Extern
?MacOS
Import "-framework AudioUnit"
Import "-framework AudioToolbox"
Import "coreaudiodevice.cpp"
Extern
Function OpenCoreAudioDevice()
End Extern
?Linux
Import "-lpulse-simple"
'Import "-lasound"
'Import "alsadevice.cpp"
'Import "ossdevice.cpp"
Import "pulseaudiodevice.cpp"
Extern "C"
Function OpenPulseAudioDevice()
'Function OpenOSSDevice()
'Function OpenALSADevice()
End Extern
?

Extern

Const FA_CHANNELSTATUS_FREE=0
Const FA_CHANNELSTATUS_STOPPED=1
Const FA_CHANNELSTATUS_SINGLESHOT=2
Const FA_CHANNELSTATUS_LOOPING=4
Const FA_CHANNELSTATUS_STREAMING=8
Const FA_CHANNELSTATUS_PAUSED=16

Function fa_Reset( audiodevice )
Function fa_Close()
Function fa_CreateSound( length,bits,channels,hertz,samples:Byte Ptr=Null,looping=False )
Function fa_WriteSound( sound,samples:Byte Ptr,length ) 'length really neceesary?
Function fa_FreeSound( sound )
Function fa_AllocChannel()
Function fa_FreeChannel( channel )
Function fa_PlaySound( sound,paused_flag,channel )

Function fa_StopChannel( channel )
Function fa_ChannelStatus( channel )
Function fa_ChannelPosition( channel )

Function fa_SetChannelPaused( channel,paused )
Function fa_SetChannelVolume( channel,volume# )
Function fa_SetChannelRate( channel,pitch# )
Function fa_SetChannelPan( channel,pan# )
Function fa_SetChannelDepth( channel,depth# )

End Extern

Function fa_Init( deviceid )
	Local device
?Win32
	If deviceid
		device=OpenDirectSoundDevice()
	Else
		device=OpenMultiMediaDevice()
	EndIf
?Linux
	Select deviceid
		Case 0
			device=OpenPulseAudioDevice()
'		Case 1
'			device=OpenOSSDevice()	
'		Case 2
'			device=OpenALSADevice()
	EndSelect
?MacOS
	device=OpenCoreAudioDevice()
?
	Local res=-1
	If device res=fa_Reset(device)
	Return res
End Function

Finally, run MaxIDE and go to the Program menu and select Rebuild All Modules. This will rebuild the audio module and use the PulseAudio driver.

Last edited 2012

Dinosorceror

(Posted 2012) [#2]

By the by, seems that the new Unity launcher doesn't wanna handle the IDE's exe. A quick Google found the following tip for creating a custom application launcher:

Create a custom application launcher

EDIT: It works...sorta. The shortcut created launches a separate icon in the launcher. If you shut down BlitzMax and try to pull it up again, the shortcut the process above creates is still "throbbing" as if it's running. After a few seconds, it will stop, and you can launch it again. If anyone knows of a better way to get the launcher to accept the IDE better, let us all know!

Last edited 2012

Last edited 2012

Captain Wicker (crazy hillbilly)

(Posted 2012) [#3]

Shouldn't you use the ALSA driver? Unless I (doubtedly) am the only one having problems with Pulse and the latest versions of Ubuntu, there is no reason to be using it.

Derron

(Posted 2012) [#4]

If you use ALSA you may run into "simultaneous audio playback"-issues.
If you eg. play some music in the background and start your app with sound too, you will recognize what I meant.

Another reason I modified rtAudio to link pulse audio the first (else it uses alsa or oss first).

bye
Ron