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Convert playback.c to use unsigned byte counters, and _minor_ refactoring of buffer callbacks

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9227 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Brandon Low 2006-03-24 13:43:15 +00:00
parent b1cd32913d
commit 86f1e2ead2
6 changed files with 125 additions and 124 deletions
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18
apps/codecs.h
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@ -85,12 +85,12 @@
#define CODEC_MAGIC 0x52434F44 /* RCOD */
/* increase this every time the api struct changes */
#define CODEC_API_VERSION 4
#define CODEC_API_VERSION 5
/* update this to latest version if a change to the api struct breaks
backwards compatibility (and please take the opportunity to sort in any
new function which are "waiting" at the end of the function table) */
#define CODEC_MIN_API_VERSION 3
#define CODEC_MIN_API_VERSION 5
/* codec return codes */
enum codec_status {
@ -125,7 +125,7 @@ struct codec_api {
long seek_time;
/* Returns buffer to malloc array. Only codeclib should need this. */
void* (*get_codec_memory)(long *size);
void* (*get_codec_memory)(size_t *size);
/* Insert PCM data into audio buffer for playback. Playback will start
automatically. */
bool (*pcmbuf_insert)(const char *data, size_t length);
@ -135,18 +135,18 @@ struct codec_api {
/* Read next <size> amount bytes from file buffer to <ptr>.
Will return number of bytes read or 0 if end of file. */
long (*read_filebuf)(void *ptr, long size);
size_t (*read_filebuf)(void *ptr, size_t size);
/* Request pointer to file buffer which can be used to read
<realsize> amount of data. <reqsize> tells the buffer system
how much data it should try to allocate. If <realsize> is 0,
end of file is reached. */
void* (*request_buffer)(long *realsize, long reqsize);
void* (*request_buffer)(size_t *realsize, size_t reqsize);
/* Advance file buffer position by <amount> amount of bytes. */
void (*advance_buffer)(long amount);
void (*advance_buffer)(size_t amount);
/* Advance file buffer to a pointer location inside file buffer. */
void (*advance_buffer_loc)(void *ptr);
/* Seek file buffer to position <newpos> beginning of file. */
bool (*seek_buffer)(off_t newpos);
bool (*seek_buffer)(size_t newpos);
/* Codec should call this function when it has done the seeking. */
void (*seek_complete)(void);
/* Calculate mp3 seek position from given time data in ms. */
@ -156,7 +156,7 @@ struct codec_api {
codec should exit immediately with PLUGIN_OK status. */
bool (*request_next_track)(void);
void (*set_offset)(unsigned int value);
void (*set_offset)(size_t value);
/* Configure different codec buffer parameters. */
void (*configure)(int setting, void *value);
@ -214,6 +214,7 @@ struct codec_api {
int (*strncasecmp)(const char *s1, const char *s2, size_t n);
void* (*memset)(void *dst, int c, size_t length);
void* (*memcpy)(void *out, const void *in, size_t n);
void* (*memmove)(void *out, const void *in, size_t n);
const char *_ctype_;
int (*atoi)(const char *str);
char *(*strchr)(const char *s, int c);
@ -292,7 +293,6 @@ struct codec_api {
/* new stuff at the end, sort into place next time
the API gets incompatible */
void* (*memmove)(void *out, const void *in, size_t n);
};
/* codec header */