import from SF CVS

git-svn-id: https://svn.musicpd.org/mpd/trunk@1 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 124 insertions, 0 deletions

diff --git a/src/playerData.c b/src/playerData.c
new file mode 100644
index 000000000..fee8ac719
--- /dev/null
+++ b/src/playerData.c
@@ -0,0 +1,124 @@
+/* the Music Player Daemon (MPD)
+ * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
+ * This project's homepage is: http://www.musicpd.org
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "playerData.h"
+#include "conf.h"
+#include "log.h"
+
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int buffered_before_play;
+int BUFFERED_CHUNKS;
+
+PlayerData * playerData_pd;
+
+void initPlayerData() {
+	float perc;
+	char * test;
+	int shmid;
+	int crossfade = 0;
+	size_t bufferSize;
+	size_t allocationSize;
+	Buffer * buffer;
+
+	bufferSize = strtol(getConf()[CONF_BUFFER_SIZE],&test,10);
+	if(*test!='\0' || bufferSize<=0) {
+		ERROR("buffer size \"%s\" is not a positive integer\n",
+				getConf()[CONF_BUFFER_SIZE]);
+		exit(-1);
+	}
+	bufferSize*=1024;
+
+	BUFFERED_CHUNKS = bufferSize/CHUNK_SIZE;
+
+	perc = strtod((getConf())[CONF_BUFFER_BEFORE_PLAY],&test);
+	if(*test!='%' || perc<0 || perc>100) {
+		ERROR("buffered before play \"%s\" is not a positive "
+				"percentage and less than 100 percent\n",
+				(getConf())[CONF_BUFFER_BEFORE_PLAY]);
+		exit(-1);
+	}
+	buffered_before_play = (perc/100)*BUFFERED_CHUNKS;
+	if(buffered_before_play>BUFFERED_CHUNKS) {
+		buffered_before_play = BUFFERED_CHUNKS;
+	}
+	else if(buffered_before_play<0) buffered_before_play = 0;
+
+	allocationSize = BUFFERED_CHUNKS*CHUNK_SIZE; /*actual buffer*/
+	allocationSize+= BUFFERED_CHUNKS*sizeof(float); /*for times*/
+	allocationSize+= BUFFERED_CHUNKS*sizeof(mpd_sint16); /*for chunkSize*/
+	allocationSize+= BUFFERED_CHUNKS*sizeof(mpd_sint16); /*for bitRate*/
+	allocationSize+= sizeof(PlayerData); /*for playerData struct*/
+
+	if((shmid = shmget(IPC_PRIVATE,allocationSize,IPC_CREAT|0600))<0) {
+		ERROR("problems shmget'ing\n");
+		exit(-1);
+	}
+	if((playerData_pd = shmat(shmid,NULL,0))<0) {
+		ERROR("problems shmat'ing\n");
+		exit(-1);
+	}
+	if (shmctl(shmid, IPC_RMID, 0)<0) {
+		ERROR("problems shmctl'ing\n");
+		exit(-1);
+	}
+
+	buffer = &(playerData_pd->buffer);
+
+	buffer->chunks = ((char *)playerData_pd)+sizeof(PlayerData);
+	buffer->chunkSize = (mpd_sint16 *)(((char *)buffer->chunks)+
+				BUFFERED_CHUNKS*CHUNK_SIZE);
+	buffer->bitRate = (mpd_sint16 *)(((char *)buffer->chunkSize)+
+				BUFFERED_CHUNKS*sizeof(mpd_sint16));
+	buffer->times = (float *)(((char *)buffer->bitRate)+
+				BUFFERED_CHUNKS*sizeof(mpd_sint16));
+
+	playerData_pd->playerControl.stop = 0;
+	playerData_pd->playerControl.pause = 0;
+	playerData_pd->playerControl.play = 0;
+	playerData_pd->playerControl.error = PLAYER_ERROR_NOERROR;
+	playerData_pd->playerControl.lockQueue = 0;
+	playerData_pd->playerControl.unlockQueue = 0;
+	playerData_pd->playerControl.state = PLAYER_STATE_STOP;
+	playerData_pd->playerControl.queueState = PLAYER_QUEUE_BLANK;
+	playerData_pd->playerControl.queueLockState = PLAYER_QUEUE_UNLOCKED;
+	playerData_pd->playerControl.seek = 0;
+	playerData_pd->playerControl.file[0] = '\0';
+	playerData_pd->playerControl.crossFade = crossfade;
+	playerData_pd->playerControl.softwareVolume = 100;
+	playerData_pd->playerControl.totalPlayTime = 0;
+
+	playerData_pd->decoderControl.stop = 0;
+	playerData_pd->decoderControl.start = 0;
+	playerData_pd->decoderControl.state = DECODE_STATE_STOP;
+	playerData_pd->decoderControl.seek = 0;
+	playerData_pd->decoderControl.error = DECODE_ERROR_NOERROR;
+	playerData_pd->decoderControl.file[0] = '\0';
+}
+
+PlayerData * getPlayerData() {
+	return playerData_pd;
+}
+
+void freePlayerData() {
+	shmdt(playerData_pd);
+}