diff options
Diffstat (limited to 'macosx/plugins/DFSound/src')
| -rwxr-xr-x | macosx/plugins/DFSound/src/macosx.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/macosx/plugins/DFSound/src/macosx.c b/macosx/plugins/DFSound/src/macosx.c new file mode 100755 index 0000000..f329ffc --- /dev/null +++ b/macosx/plugins/DFSound/src/macosx.c @@ -0,0 +1,203 @@ +/***************************************************************************
+ macosx.c - description
+ -------------------
+ begin : Wed May 15 2002
+ copyright : (C) 2002 by Pete Bernert
+ email : BlackDove@addcom.de
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. See also the license.txt file for *
+ * additional informations. *
+ * *
+ ***************************************************************************/
+
+#include "stdafx.h"
+
+#define _IN_MACOSX
+
+#ifdef _MACOSX
+
+#include <Carbon/Carbon.h>
+#include "externals.h"
+
+#define kMaxSoundBuffers 20
+
+//static int macBufferSize = 2, macBufferCount = 36;
+//static float macSoundPitch = 1.0;
+static long macSoundVolume = 100;
+volatile int soundBufferAt = -1, soundPlayAt = -1, soundQueued = 0;
+char *soundBuffer[kMaxSoundBuffers+1], *emptyBuffer;
+SndChannelPtr sndChannel;
+//ExtSoundHeader sndHeader;
+CmpSoundHeader sndHeader;
+SndCallBackUPP callBackUPP;
+static int bufferIndex;
+
+////////////////////////////////////////////////////////////////////////
+// small linux time helper... only used for watchdog
+////////////////////////////////////////////////////////////////////////
+
+unsigned long timeGetTime()
+{
+ struct timeval tv;
+ gettimeofday(&tv, 0); // well, maybe there are better ways
+ return tv.tv_sec * 1000 + tv.tv_usec/1000; // to do that, but at least it works
+}
+
+pascal void MacProcessSound(SndChannelPtr chan, SndCommand *cmd)
+{
+ #pragma unused (chan, cmd)
+
+ if (soundQueued <= 0)
+ sndHeader.samplePtr = emptyBuffer;
+ else
+ {
+ sndHeader.samplePtr = soundBuffer[soundPlayAt];
+ soundPlayAt++;
+ if (soundPlayAt >= kMaxSoundBuffers/*macBufferCount*/)
+ soundPlayAt = 0;
+ soundQueued--;
+ }
+
+ SndCommand buffer = { bufferCmd, 0, (long) &sndHeader };
+ SndDoImmediate(sndChannel, &buffer);
+
+ SndCommand callback = { callBackCmd, 0, 0 };
+ SndDoCommand(sndChannel, &callback, true);
+}
+
+////////////////////////////////////////////////////////////////////////
+// SETUP SOUND
+////////////////////////////////////////////////////////////////////////
+
+static int buffer_size;
+void SetupSound(void)
+{
+ int count;
+
+ callBackUPP = NewSndCallBackUPP(MacProcessSound);
+
+ if (sndChannel)
+ {
+ SndDisposeChannel(sndChannel, true);
+ sndChannel = nil;
+ }
+
+ buffer_size = 1;
+ while (buffer_size < (44100 / 60))
+ buffer_size <<= 1;
+
+ memset(&sndHeader, 0, sizeof(sndHeader));
+ sndHeader.numChannels = (iDisStereo ? 1 : 2);
+ sndHeader.sampleRate = 44100 << 16;
+ sndHeader.encode = cmpSH;
+ sndHeader.baseFrequency = kMiddleC;
+ sndHeader.numFrames = buffer_size;
+ sndHeader.sampleSize = 16;
+#ifdef __POWERPC__
+ sndHeader.format = k16BitBigEndianFormat;
+#else
+ sndHeader.format = k16BitLittleEndianFormat;
+#endif
+ sndHeader.compressionID = fixedCompression;
+
+ if (soundBufferAt != -1)
+ {
+ free(soundBuffer[0]);
+ free(emptyBuffer);
+ }
+
+ soundBuffer[0] = (char *) calloc(buffer_size << 2, kMaxSoundBuffers);
+ for (count = 1; count <= kMaxSoundBuffers; count++)
+ soundBuffer[count] = soundBuffer[count-1] + (buffer_size << 2);
+ emptyBuffer = (char *) calloc(buffer_size << 2, 1);
+
+ soundBufferAt = soundPlayAt = soundQueued = 0;
+ bufferIndex = 0;
+
+ SndNewChannel(&sndChannel, sampledSynth, initStereo, callBackUPP);
+
+ SndCommand sndcmd;
+ UInt32 volume;
+
+ volume = (UInt32) (256.0 * (float) macSoundVolume / 100.0);
+
+ sndcmd.cmd = volumeCmd;
+ sndcmd.param1 = 0;
+ sndcmd.param2 = (volume << 16) | volume;
+ SndDoCommand(sndChannel, &sndcmd, true);
+
+ sndcmd.cmd = callBackCmd;
+ sndcmd.param1 = 0;
+ sndcmd.param2 = 0;
+ SndDoCommand(sndChannel, &sndcmd, true);
+}
+
+////////////////////////////////////////////////////////////////////////
+// REMOVE SOUND
+////////////////////////////////////////////////////////////////////////
+
+void RemoveSound(void)
+{
+ DisposeSndCallBackUPP(callBackUPP);
+}
+
+////////////////////////////////////////////////////////////////////////
+// GET BYTES BUFFERED
+////////////////////////////////////////////////////////////////////////
+
+unsigned long SoundGetBytesBuffered(void)
+{
+ int bytes;
+ int playAt = soundPlayAt;
+
+ if (soundBufferAt < playAt) {
+ bytes = (soundBuffer[kMaxSoundBuffers]-soundBuffer[playAt])+
+ (soundBuffer[soundBufferAt]-soundBuffer[0]);
+ } else {
+ bytes = soundBuffer[soundBufferAt]-soundBuffer[playAt];
+ }
+ //printf("sb=%i\n", bytes);
+
+// if (bytes < SOUNDSIZE/2)
+// return 0;
+
+ return bytes;
+}
+
+////////////////////////////////////////////////////////////////////////
+// FEED SOUND DATA
+////////////////////////////////////////////////////////////////////////
+
+void SoundFeedStreamData(unsigned char* pSound,long lBytes)
+{
+ int rem;
+
+ if (lBytes > (buffer_size<<2)*kMaxSoundBuffers) {
+ printf("sound feed overflow!\n");
+ return;
+ }
+
+ rem = soundBuffer[kMaxSoundBuffers]-(soundBuffer[soundBufferAt]+bufferIndex);
+ if (lBytes > rem) {
+ memcpy(soundBuffer[soundBufferAt]+bufferIndex, pSound, rem);
+ lBytes -= rem; pSound += rem;
+ soundQueued += kMaxSoundBuffers-soundBufferAt;
+ soundBufferAt = 0; bufferIndex = 0;
+ }
+ memcpy(soundBuffer[soundBufferAt]+bufferIndex, pSound, lBytes);
+ soundBufferAt += (lBytes+bufferIndex)/(buffer_size<<2);
+ soundQueued += (lBytes+bufferIndex)/(buffer_size<<2);
+ bufferIndex = (lBytes+bufferIndex)%(buffer_size<<2);
+
+ if (soundQueued >= kMaxSoundBuffers) {
+ printf("sound buffer overflow!\n");
+ }
+}
+
+#endif
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