From e2de64d6f1beb9e492daf5b886e19933c1fa41dd Mon Sep 17 00:00:00 2001 From: toma Date: Wed, 25 Nov 2009 17:56:58 +0000 Subject: 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 --- kscd/libwm/plat_sun_cdda.c | 380 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 380 insertions(+) create mode 100644 kscd/libwm/plat_sun_cdda.c (limited to 'kscd/libwm/plat_sun_cdda.c') diff --git a/kscd/libwm/plat_sun_cdda.c b/kscd/libwm/plat_sun_cdda.c new file mode 100644 index 00000000..3f669a8b --- /dev/null +++ b/kscd/libwm/plat_sun_cdda.c @@ -0,0 +1,380 @@ +/* + * $Id$ + * + * This file is part of WorkMan, the civilized CD player library + * (c) 1991-1997 by Steven Grimm (original author) + * (c) by Dirk Försterling (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 + * + * + * Sun (really Solaris) CDDA functions. + */ + +#include "include/wm_cdda.h" + +#if defined(sun) || defined(__sun__) && defined(SYSV) && defined(BUILD_CDDA) + + +#include "include/wm_struct.h" +#include "include/wm_cdda.h" +/* types.h and cdio.h are included by wm_cdda.h */ + +#include +#include +#include +#include +#include + +#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM + +#define CDDABLKSIZE 2368 +#define SAMPLES_PER_BLK 588 + +/* Address of next block to read. */ +int current_position = 0; + +/* Address of first and last blocks to read. */ +int starting_position = 0; +int ending_position = 0; + +/* Playback direction. */ +int direction = 1; + +/* Number of blocks to read at once; initialize to the maximum. */ +/* (was 30. Set to 15 for INTeL. Maybe config option? */ +int numblocks = 15; + +/* + * This is the fastest way to convert from BCD to 8-bit. + */ +unsigned char unbcd[256] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0,0,0,0,0,0, + 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 0,0,0,0,0,0, + 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 0,0,0,0,0,0, + 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 0,0,0,0,0,0, + 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 0,0,0,0,0,0, + 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 0,0,0,0,0,0, + 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 0,0,0,0,0,0, + 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 0,0,0,0,0,0, + 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 0,0,0,0,0,0, + 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 +}; + +static long wmcdda_normalize(struct cdda_block *block); + +/* + * Initialize the CDDA data buffer and open the appropriate device. + * + * NOTE: We allocate twice as much space as we need to actually read a block; + * this lets us do audio manipulations without bothering to malloc a second + * buffer. + * + * Also, test to see if we can actually *do* CDDA on this drive; if not, we + * need to exit right away so the UI doesn't show the user any CDDA controls. + */ +int +wmcdda_init(struct cdda_device* pdev, struct cdda_block *block) +{ + struct cdrom_cdda cdda; + int i; + + if (pdev->fd > -1) + 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) + return -ENOMEM; + } + + pdev->fd = open(pdev->devname, 0); + if (pdev->fd == -1) + pdev->fd = open("/dev/rdsk/c0t6d0s2", 0); + + if (pdev->fd > -1) + { + cdda.cdda_addr = 200; + cdda.cdda_length = 1; + cdda.cdda_data = pdev->blocks[0].buf; + cdda.cdda_subcode = CDROM_DA_SUBQ; + + if (ioctl(pdev->fd, CDROMCDDA, &cdda) < 0) + { + block->status = WM_CDM_STOPPED; + return -1; + } else { + block->status = WM_CDM_STOPPED; + return 0; + } + } else { + block->status = WM_CDM_EJECTED; + return -1; + } +} + +/* + * 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 - 150; + ending_position = end - 150; + starting_position = realstart - 150; + + /* + * Special case: don't start at the "end" of a track if we're + * playing backwards! + */ + if (direction == -1 && start == realstart) + current_position = ending_position - numblocks; + 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) +{ + struct cdrom_cdda cdda; + int blk; + unsigned char *q; + extern int speed; + unsigned char* rawbuf = block->buf; + + if(pdev->fd < 0 && (wmcdda_init(pdev, block) < 0)) { + return -1; + } + + /* + * Hit the end of the CD, probably. + */ + if ((direction > 0 && current_position >= ending_position) || + (direction < 0 && current_position < starting_position)) + { + block->status = WM_CDM_TRACK_DONE; + return (0); + } + + cdda.cdda_addr = current_position; + if (ending_position && current_position + pdev->frames_at_once > ending_position) + cdda.cdda_length = ending_position - current_position; + else + cdda.cdda_length = pdev->frames_at_once; + cdda.cdda_data = (unsigned char*)block->buf; + cdda.cdda_subcode = CDROM_DA_SUBQ; + + if (ioctl(pdev->fd, CDROMCDDA, &cdda) < 0) + { + if (errno == ENXIO) /* CD ejected! */ + { + block->status = WM_CDM_EJECTED; + return (-1); + } + + /* Sometimes it fails once, dunno why */ + if (ioctl(pdev->fd, CDROMCDDA, &cdda) < 0) + { + if (ioctl(pdev->fd, CDROMCDDA, &cdda) < 0) + { + if (ioctl(pdev->fd, CDROMCDDA, &cdda) < 0) + { + perror("CDROMCDDA"); + block->status = WM_CDM_CDDAERROR; + return (-1); + } + } + } + } + + if (speed > 148) + { + /* + * We want speed=148 to advance by cdda_length, but + * speed=256 to advance cdda_length * 4. + */ + current_position = current_position + + (cdda.cdda_length * direction * (speed - 112)) / 36; + } + else + current_position = current_position + cdda.cdda_length * direction; + + for (blk = 0; blk < numblocks; blk++) + { + /* + * New valid Q-subchannel information? Update the block + * status. + */ + q = &rawbuf[blk * CDDABLKSIZE + SAMPLES_PER_BLK * 4]; + if (*q == 1) + { + block->track = unbcd[q[1]]; + block->index = unbcd[q[2]]; + /*block->minute = unbcd[q[7]]; + block->second = unbcd[q[8]];*/ + block->frame = unbcd[q[9]]; + block->status = WM_CDM_PLAYING; + block->buflen = cdda.cdda_length; + } + } + + return wmcdda_normalize(block); +} + +/* + * Normalize a bunch of CDDA data. Basically this means ripping out the + * Q subchannel data and doing byte-swapping, since the CD audio is in + * littleendian format. + * + * Scanning is handled here too. + * + * XXX - do byte swapping on Intel boxes? + */ +long +wmcdda_normalize(struct cdda_block *block) +{ + int i, nextq; + long buflen = block->buflen; + int blocks = buflen / CDDABLKSIZE; + unsigned char *rawbuf = block->buf; + unsigned char *dest = rawbuf; + unsigned char tmp; + long *buf32 = (long *)rawbuf, tmp32; + +/* + * this was #ifndef LITTLEENDIAN + * in wmcdda it was called LITTLE_ENDIAN. Was this a flaw? + */ +#if WM_BIG_ENDIAN + if (blocks--) + for (i = 0; i < SAMPLES_PER_BLK * 2; i++) + { + /* Only need to use temp buffer on first block. */ + tmp = *rawbuf++; + *dest++ = *rawbuf++; + *dest++ = tmp; + } +#endif + + while (blocks--) + { + /* Skip over Q data. */ + rawbuf += 16; + + for (i = 0; i < SAMPLES_PER_BLK * 2; i++) + { +#if WM_LITTLE_ENDIAN + *dest++ = *rawbuf++; + *dest++ = *rawbuf++; +#else + *dest++ = rawbuf[1]; + *dest++ = rawbuf[0]; + rawbuf += 2; +#endif + } + } + + buflen -= ((buflen / CDDABLKSIZE) * 16); + + /* + * Reverse the data here if we're playing backwards. + * XXX - ideally this should be done above. + */ + if (direction < 0) + { + buflen /= 4; /* we can move 32 bits at a time. */ + + for (i = 0; i < buflen / 2; i++) + { + tmp32 = buf32[i]; + buf32[i] = buf32[buflen - i - 1]; + buf32[buflen - i - 1] = tmp32; + } + + buflen *= 4; + } + + return (buflen); +} + +/* + * Set the playback direction. + */ +void +wmcdda_direction(int newdir) +{ + if (newdir == 0) + { + numblocks = 20; + direction = 1; + } + else + { + numblocks = 30; + direction = -1; + } +} + +/* + * Do system-specific stuff to get ready to play at a particular speed. + */ +void +wmcdda_speed(int speed) +{ + if (speed > 128) + numblocks = 12; + else + numblocks = direction > 0 ? 20 : 30; +} + +#endif /* } */ -- cgit v1.2.1