summaryrefslogtreecommitdiffstats
path: root/apps/plugins/mpegplayer/disk_buf.h
diff options
context:
space:
mode:
authorSolomon Peachy <pizza@shaftnet.org>2021-08-04 09:49:56 -0400
committerSolomon Peachy <pizza@shaftnet.org>2022-10-02 11:57:20 -0400
commitd25d24812e8120c0eb133a412287ac030eb185c9 (patch)
treed1c336d5d81c39366672c86f30c484f96e24a469 /apps/plugins/mpegplayer/disk_buf.h
parent9ce5b2a2eda5c7101898476adaa3533e0ba5db82 (diff)
downloadrockbox-d25d24812e.tar.gz
rockbox-d25d24812e.zip
RFC: Get rid of mpegplayer plugin
It might have made sense once upon a time, but in today's world... Change-Id: I5d638e6f7a2308c50ab12bd901338f02cf426aae
Diffstat (limited to 'apps/plugins/mpegplayer/disk_buf.h')
-rw-r--r--apps/plugins/mpegplayer/disk_buf.h152
1 files changed, 0 insertions, 152 deletions
diff --git a/apps/plugins/mpegplayer/disk_buf.h b/apps/plugins/mpegplayer/disk_buf.h
deleted file mode 100644
index bc76ab6dc3..0000000000
--- a/apps/plugins/mpegplayer/disk_buf.h
+++ /dev/null
@@ -1,152 +0,0 @@
-/***************************************************************************
- * __________ __ ___.
- * Open \______ \ ____ ____ | | _\_ |__ _______ ___
- * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
- * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
- * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
- * \/ \/ \/ \/ \/
- * $Id$
- *
- * AV disk buffer declarations
- *
- * Copyright (c) 2007 Michael Sevakis
- *
- * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-#ifndef DISK_BUF_H
-#define DISK_BUF_H
-
-#ifndef OFF_T_MAX
-#define OFF_T_MAX (~((off_t)1 << (sizeof (off_t)*8 - 1)))
-#endif
-
-#ifndef OFF_T_MIN
-#define OFF_T_MIN ((off_t)1 << (sizeof (off_t)*8 - 1))
-#endif
-
-#define DISK_BUF_PAGE_SHIFT 15 /* 32KB cache lines */
-#define DISK_BUF_PAGE_SIZE (1 << DISK_BUF_PAGE_SHIFT)
-#define DISK_BUF_PAGE_MASK (DISK_BUF_PAGE_SIZE-1)
-
-enum
-{
- DISK_BUF_NOTIFY_ERROR = -1,
- DISK_BUF_NOTIFY_NULL = 0,
- DISK_BUF_NOTIFY_OK,
- DISK_BUF_NOTIFY_TIMEDOUT,
- DISK_BUF_NOTIFY_PROCESS_EVENT,
- DISK_BUF_NOTIFY_REGISTERED,
-};
-
-/** Macros to map file offsets to cached data **/
-
-/* Returns a cache tag given a file offset */
-#define MAP_OFFSET_TO_TAG(o) \
- ((o) >> DISK_BUF_PAGE_SHIFT)
-
-/* Returns the cache page number given a file offset */
-#define MAP_OFFSET_TO_PAGE(o) \
- (MAP_OFFSET_TO_TAG(o) % disk_buf.pgcount)
-
-/* Returns the buffer offset given a file offset */
-#define MAP_OFFSET_TO_BUFFER(o) \
- (MAP_OFFSET_TO_PAGE(o) * DISK_BUF_PAGE_SIZE)
-
-struct dbuf_range
-{
- uint32_t tag_start;
- uint32_t tag_end;
- int pg_start;
-};
-
-#define DISK_BUF_L2_CACHE_SHIFT 6
-#define DISK_BUF_L2_CACHE_SIZE (1 << DISK_BUF_L2_CACHE_SHIFT)
-#define DISK_BUF_L2_CACHE_MASK (DISK_BUF_L2_CACHE_SIZE-1)
-
-struct dbuf_l2_cache
-{
- off_t addr; /* L2 file offset */
- size_t size; /* Real size */
- uint8_t data[DISK_BUF_L2_CACHE_SIZE*2]; /* Local data and guard */
-};
-
-void dbuf_l2_init(struct dbuf_l2_cache *l2_p);
-
-/* This object is an extension of the stream manager and handles some
- * playback events as well as buffering */
-struct disk_buf
-{
- unsigned int thread;
- struct event_queue *q;
- uint8_t *start; /* Start pointer */
- uint8_t *end; /* End of buffer pointer less MPEG_GUARDBUF_SIZE. The
- guard space is used to wrap data at the buffer start to
- pass continuous data packets */
- uint8_t *tail; /* Location of last data + 1 filled into the buffer */
- ssize_t size; /* The buffer length _not_ including the guard space (end-start) */
- int pgcount; /* Total number of available cached pages */
- uint32_t *cache; /* Pointer to cache structure - allocated on buffer */
- int in_file; /* File being read */
- ssize_t filesize; /* Size of file in_file in bytes */
- int file_pages; /* Number of pages in file (rounded up) */
- off_t offset; /* Current position (random access) */
- off_t win_left; /* Left edge of buffer window (streaming) */
- off_t win_right; /* Right edge of buffer window (streaming) */
- uint32_t time_last; /* Last time watermark was checked */
- off_t pos_last; /* Last position at watermark check time */
- ssize_t low_wm; /* The low watermark for automatic rebuffering */
- int status; /* Status as stream */
- int state; /* Current thread state */
- bool need_seek; /* Need to seek because a read was not contiguous */
-};
-
-extern struct disk_buf disk_buf SHAREDBSS_ATTR;
-
-struct stream_hdr;
-bool disk_buf_is_data_ready(struct stream_hdr *sh, ssize_t margin);
-
-bool disk_buf_init(void);
-void disk_buf_exit(void);
-
-static inline int disk_buf_status(void)
- { return disk_buf.status; }
-
-int disk_buf_open(const char *filename);
-void disk_buf_close(void);
-ssize_t _disk_buf_getbuffer(size_t size, void **pp, void **pwrap,
- size_t *sizewrap);
-#define disk_buf_getbuffer(size, pp, pwrap, sizewrap) \
- _disk_buf_getbuffer((size), PUN_PTR(void **, (pp)), \
- PUN_PTR(void **, (pwrap)), (sizewrap))
-
-ssize_t _disk_buf_getbuffer_l2(struct dbuf_l2_cache *l2,
- size_t size, void **pp);
-#define disk_buf_getbuffer_l2(l2, size, pp) \
- _disk_buf_getbuffer_l2((l2), (size), PUN_PTR(void **, (pp)))
-
-ssize_t disk_buf_read(void *buffer, size_t size);
-ssize_t disk_buf_lseek(off_t offset, int whence);
-
-static inline off_t disk_buf_ftell(void)
- { return disk_buf.offset; }
-
-static inline ssize_t disk_buf_filesize(void)
- { return disk_buf.filesize; }
-
-ssize_t disk_buf_prepare_streaming(off_t pos, size_t len);
-ssize_t disk_buf_set_streaming_window(off_t left, off_t right);
-void * disk_buf_offset2ptr(off_t offset);
-int disk_buf_check_streaming_window(off_t left, off_t right);
-
-intptr_t disk_buf_send_msg(long id, intptr_t data);
-void disk_buf_post_msg(long id, intptr_t data);
-void disk_buf_reply_msg(intptr_t retval);
-
-#endif /* DISK_BUF_H */