+++ /dev/null
-/***************************************************************************\r
- macosx.c - description\r
- -------------------\r
- begin : Wed May 15 2002\r
- copyright : (C) 2002 by Pete Bernert\r
- email : BlackDove@addcom.de\r
- ***************************************************************************/\r
-\r
-/***************************************************************************\r
- * *\r
- * This program is free software; you can redistribute it and/or modify *\r
- * it under the terms of the GNU General Public License as published by *\r
- * the Free Software Foundation; either version 2 of the License, or *\r
- * (at your option) any later version. See also the license.txt file for *\r
- * additional informations. *\r
- * *\r
- ***************************************************************************/\r
-\r
-#include "stdafx.h"\r
-\r
-#define _IN_MACOSX\r
-\r
-#ifdef _MACOSX\r
-\r
-#include <Carbon/Carbon.h>\r
-#include "externals.h"\r
-\r
-#define kMaxSoundBuffers 20\r
-\r
-//static int macBufferSize = 2, macBufferCount = 36;\r
-//static float macSoundPitch = 1.0;\r
-static long macSoundVolume = 100;\r
-volatile int soundBufferAt = -1, soundPlayAt = -1, soundQueued = 0;\r
-char *soundBuffer[kMaxSoundBuffers+1], *emptyBuffer;\r
-SndChannelPtr sndChannel;\r
-//ExtSoundHeader sndHeader;\r
-CmpSoundHeader sndHeader;\r
-SndCallBackUPP callBackUPP;\r
-static int bufferIndex;\r
-\r
-////////////////////////////////////////////////////////////////////////\r
-// small linux time helper... only used for watchdog\r
-////////////////////////////////////////////////////////////////////////\r
-\r
-unsigned long timeGetTime()\r
-{\r
- struct timeval tv;\r
- gettimeofday(&tv, 0); // well, maybe there are better ways\r
- return tv.tv_sec * 1000 + tv.tv_usec/1000; // to do that, but at least it works\r
-}\r
-\r
-pascal void MacProcessSound(SndChannelPtr chan, SndCommand *cmd)\r
-{\r
- #pragma unused (chan, cmd)\r
-\r
- if (soundQueued <= 0)\r
- sndHeader.samplePtr = emptyBuffer;\r
- else\r
- {\r
- sndHeader.samplePtr = soundBuffer[soundPlayAt];\r
- soundPlayAt++;\r
- if (soundPlayAt >= kMaxSoundBuffers/*macBufferCount*/)\r
- soundPlayAt = 0;\r
- soundQueued--;\r
- }\r
- \r
- SndCommand buffer = { bufferCmd, 0, (long) &sndHeader };\r
- SndDoImmediate(sndChannel, &buffer);\r
-\r
- SndCommand callback = { callBackCmd, 0, 0 };\r
- SndDoCommand(sndChannel, &callback, true);\r
-}\r
-\r
-////////////////////////////////////////////////////////////////////////\r
-// SETUP SOUND\r
-////////////////////////////////////////////////////////////////////////\r
-\r
-static int buffer_size;\r
-void SetupSound(void)\r
-{\r
- int count;\r
- \r
- callBackUPP = NewSndCallBackUPP(MacProcessSound);\r
- \r
- if (sndChannel)\r
- {\r
- SndDisposeChannel(sndChannel, true);\r
- sndChannel = nil;\r
- }\r
- \r
- buffer_size = 1;\r
- while (buffer_size < (44100 / 60))\r
- buffer_size <<= 1;\r
- \r
- memset(&sndHeader, 0, sizeof(sndHeader));\r
- sndHeader.numChannels = (iDisStereo ? 1 : 2);\r
- sndHeader.sampleRate = 44100 << 16;\r
- sndHeader.encode = cmpSH;\r
- sndHeader.baseFrequency = kMiddleC;\r
- sndHeader.numFrames = buffer_size;\r
- sndHeader.sampleSize = 16;\r
-#ifdef __POWERPC__\r
- sndHeader.format = k16BitBigEndianFormat;\r
-#else\r
- sndHeader.format = k16BitLittleEndianFormat;\r
-#endif\r
- sndHeader.compressionID = fixedCompression;\r
- \r
- if (soundBufferAt != -1)\r
- {\r
- free(soundBuffer[0]);\r
- free(emptyBuffer);\r
- }\r
- \r
- soundBuffer[0] = (char *) calloc(buffer_size << 2, kMaxSoundBuffers);\r
- for (count = 1; count <= kMaxSoundBuffers; count++)\r
- soundBuffer[count] = soundBuffer[count-1] + (buffer_size << 2);\r
- emptyBuffer = (char *) calloc(buffer_size << 2, 1);\r
- \r
- soundBufferAt = soundPlayAt = soundQueued = 0;\r
- bufferIndex = 0;\r
- \r
- SndNewChannel(&sndChannel, sampledSynth, initStereo, callBackUPP);\r
-\r
- SndCommand sndcmd;\r
- UInt32 volume;\r
- \r
- volume = (UInt32) (256.0 * (float) macSoundVolume / 100.0);\r
- \r
- sndcmd.cmd = volumeCmd;\r
- sndcmd.param1 = 0;\r
- sndcmd.param2 = (volume << 16) | volume;\r
- SndDoCommand(sndChannel, &sndcmd, true);\r
-\r
- sndcmd.cmd = callBackCmd;\r
- sndcmd.param1 = 0;\r
- sndcmd.param2 = 0; \r
- SndDoCommand(sndChannel, &sndcmd, true);\r
-}\r
-\r
-////////////////////////////////////////////////////////////////////////\r
-// REMOVE SOUND\r
-////////////////////////////////////////////////////////////////////////\r
-\r
-void RemoveSound(void)\r
-{\r
- DisposeSndCallBackUPP(callBackUPP);\r
-}\r
-\r
-////////////////////////////////////////////////////////////////////////\r
-// GET BYTES BUFFERED\r
-////////////////////////////////////////////////////////////////////////\r
-\r
-unsigned long SoundGetBytesBuffered(void)\r
-{\r
- int bytes;\r
- int playAt = soundPlayAt;\r
- \r
- if (soundBufferAt < playAt) {\r
- bytes = (soundBuffer[kMaxSoundBuffers]-soundBuffer[playAt])+\r
- (soundBuffer[soundBufferAt]-soundBuffer[0]);\r
- } else {\r
- bytes = soundBuffer[soundBufferAt]-soundBuffer[playAt];\r
- }\r
- //printf("sb=%i\n", bytes);\r
- \r
-// if (bytes < SOUNDSIZE/2)\r
-// return 0;\r
- \r
- return bytes;\r
-}\r
-\r
-////////////////////////////////////////////////////////////////////////\r
-// FEED SOUND DATA\r
-////////////////////////////////////////////////////////////////////////\r
-\r
-void SoundFeedStreamData(unsigned char* pSound,long lBytes)\r
-{\r
- int rem;\r
- \r
- if (lBytes > (buffer_size<<2)*kMaxSoundBuffers) {\r
- printf("sound feed overflow!\n");\r
- return;\r
- }\r
-\r
- rem = soundBuffer[kMaxSoundBuffers]-(soundBuffer[soundBufferAt]+bufferIndex);\r
- if (lBytes > rem) {\r
- memcpy(soundBuffer[soundBufferAt]+bufferIndex, pSound, rem);\r
- lBytes -= rem; pSound += rem;\r
- soundQueued += kMaxSoundBuffers-soundBufferAt;\r
- soundBufferAt = 0; bufferIndex = 0;\r
- }\r
- memcpy(soundBuffer[soundBufferAt]+bufferIndex, pSound, lBytes);\r
- soundBufferAt += (lBytes+bufferIndex)/(buffer_size<<2);\r
- soundQueued += (lBytes+bufferIndex)/(buffer_size<<2);\r
- bufferIndex = (lBytes+bufferIndex)%(buffer_size<<2);\r
- \r
- if (soundQueued >= kMaxSoundBuffers) {\r
- printf("sound buffer overflow!\n");\r
- }\r
-}\r
-\r
-#endif\r
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