Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 253 insertions, 0 deletions

diff --git a/kscd/libwm/plat_linux_cdda.c b/kscd/libwm/plat_linux_cdda.c
new file mode 100644
index 00000000..6456e10a
--- /dev/null
+++ b/kscd/libwm/plat_linux_cdda.c
@@ -0,0 +1,253 @@
+/*
+ * $Id$
+ *
+ * This file is part of WorkMan, the civilized CD player library
+ * (c) 1991-1997 by Steven Grimm (original author)
+ * (c) by Dirk F�sterling (current 'author' = maintainer)
+ * The maintainer can be contacted by his e-mail address:
+ * milliByte@DeathsDoor.com 
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *
+ * Linux CDDA functions. Derived from the SUN module.
+ */
+
+#include "include/wm_cdda.h"
+ 
+#if defined(__linux__) && defined(BUILD_CDDA)
+
+#ifndef __GNUC__
+#define __GNUC__ 1
+#endif
+/* needed for vanilla kernel headers, which do provide __u64 only
+   for ansi */
+#undef __STRICT_ANSI__
+/* needed for non-ansi kernel headers */
+#define asm __asm__
+#define inline __inline__
+#include <asm/types.h>
+#include <linux/cdrom.h>
+#undef asm
+#undef inline
+
+#include <stdio.h>
+#include <math.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+
+#include "include/wm_struct.h"
+#include "include/wm_cdda.h"
+
+#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
+
+#define CDDABLKSIZE 2352
+
+/* Address of next block to read. */
+static int current_position;
+
+/* Address of last block to read. */
+static int ending_position;
+
+static struct cdrom_read_audio cdda;
+static long wmcdda_normalize(struct cdda_block *block);
+
+
+/*
+ * Initialize the CDDA data buffer and open the appropriate device.
+ *
+ */
+int
+wmcdda_init(struct cdda_device* pdev)
+{
+    int i;
+
+    if (pdev->fd > -1)
+        return -1;
+
+    if(!pdev->devname)
+      return -1;
+      
+    for (i = 0; i < pdev->numblocks; i++) {
+        /* in Linux const */
+        pdev->blocks[i].buflen = pdev->frames_at_once * CDDABLKSIZE;
+        pdev->blocks[i].buf = malloc(pdev->blocks[i].buflen);
+        if (!pdev->blocks[i].buf) {
+            ERRORLOG("wmcdda_init ENOMEM\n");
+            return -ENOMEM;
+        }
+    }
+      
+    pdev->fd = open(pdev->devname, O_RDONLY | O_NONBLOCK);
+
+    if (pdev->fd > -1) {
+        cdda.addr_format = CDROM_LBA;
+        cdda.addr.lba = 200;
+        cdda.nframes = 1;
+        cdda.buf = (unsigned char*)pdev->blocks[0].buf;
+
+        pdev->status = WM_CDM_STOPPED;
+        if((ioctl(pdev->fd, CDROMREADAUDIO, &cdda) < 0)) {
+            if (errno == ENXIO) {
+                /* CD ejected! */
+                pdev->status = WM_CDM_EJECTED;
+                return 0;
+            } else {
+                /* Sometimes it fails once, dunno why */
+                pdev->status = WM_CDM_CDDAERROR;
+                return 0;
+            }
+        }
+    } else {
+        ERRORLOG("canot open device, errno %i\n", errno);
+        pdev->status = WM_CDM_UNKNOWN;
+        return -1;
+    }
+
+    pdev->status = WM_CDM_UNKNOWN;
+    return 0;
+}
+
+/*
+ * Close the CD-ROM device in preparation for exiting.
+ */
+int
+wmcdda_close(struct cdda_device* pdev)
+{
+    int i;
+
+    if(-1 == pdev->fd)
+        return -1;
+
+    close(pdev->fd);
+    pdev->fd = -1;
+
+    for (i = 0; i < pdev->numblocks; i++) {
+        free(pdev->blocks[i].buf);
+        pdev->blocks[i].buf = 0;
+        pdev->blocks[i].buflen = 0;
+    }
+
+    return 0;
+}
+
+/*
+ * Set up for playing the CD.  Actually this doesn't play a thing, just sets a
+ * couple variables so we'll know what to do when we're called.
+ */
+int
+wmcdda_setup(int start, int end, int realstart)
+{
+    current_position = start;
+    ending_position = end;
+
+    return 0;
+}
+
+/*
+ * Read some blocks from the CD.  Stop if we hit the end of the current region.
+ *
+ * Returns number of bytes read, -1 on error, 0 if stopped for a benign reason.
+ */
+long
+wmcdda_read(struct cdda_device* pdev, struct cdda_block *block)
+{
+    if (pdev->fd < 0 && wmcdda_init(pdev)) {
+        return -1;
+    }
+
+    /* Hit the end of the CD, probably. */
+    if (current_position >= ending_position) {
+        block->status = WM_CDM_TRACK_DONE;
+        return 0;
+    }
+
+    cdda.addr_format = CDROM_LBA;
+    cdda.addr.lba = current_position - CD_MSF_OFFSET;
+    if (ending_position && current_position + pdev->frames_at_once > ending_position)
+        cdda.nframes = ending_position - current_position;
+    else
+        cdda.nframes = pdev->frames_at_once;
+   
+    cdda.buf = (unsigned char*)block->buf;
+
+    if (ioctl(pdev->fd, CDROMREADAUDIO, &cdda) < 0) {
+        if (errno == ENXIO) {
+            /* CD ejected! */
+            block->status = WM_CDM_EJECTED;
+            return 0;
+        } else {
+            /* Sometimes it fails once, dunno why */
+            block->status = WM_CDM_CDDAERROR;
+            return 0;
+        }
+    }
+
+    block->track =  -1;
+    block->index =  0;
+    block->frame  = current_position;
+    block->status = WM_CDM_PLAYING;
+    block->buflen = cdda.nframes * CDDABLKSIZE;
+
+    current_position = current_position + cdda.nframes;
+    
+    return wmcdda_normalize(block);
+}
+
+/*
+ * Normalize a bunch of CDDA data.  Basically this means doing byte-swapping, since the CD audio is in
+ * littleendian format.
+ */
+long
+wmcdda_normalize(struct cdda_block *block)
+{
+#if WM_BIG_ENDIAN
+    int i;
+    int blocks = block->buflen / CDDABLKSIZE;
+    char *rawbuf = block->buf;
+    char *dest = block->buf;
+
+    while (blocks--) {
+        for (i = 0; i < CDDABLKSIZE / 2; i++) {
+            *dest++ = rawbuf[1];
+            *dest++ = rawbuf[0];
+            rawbuf += 2;
+        }
+    }
+#endif
+    return block->buflen;
+}
+
+/*
+ * Set the playback direction.
+ */
+void
+wmcdda_direction(int newdir)
+{
+}
+
+/*
+ * Do system-specific stuff to get ready to play at a particular speed.
+ */
+void
+wmcdda_speed(int speed)
+{
+}
+
+#endif