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Move code into IRAM and explicitly inline some functions (gcc was inlining them anyway, but this way is better)

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7741 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2005-11-03 18:14:37 +00:00
parent 6f7f921ebe
commit 439ba9bdbb
2 changed files with 30 additions and 9 deletions
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33
apps/codecs/libalac/alac.c
View file

@ -105,7 +105,7 @@ void alac_set_info(alac_file *alac, char *inputbuffer)
/* stream reading */ /* stream reading */
/* supports reading 1 to 16 bits, in big endian format */ /* supports reading 1 to 16 bits, in big endian format */
static uint32_t readbits_16(alac_file *alac, int bits) static inline uint32_t readbits_16(alac_file *alac, int bits)
{ {
uint32_t result; uint32_t result;
int new_accumulator; int new_accumulator;
@ -137,7 +137,7 @@ static uint32_t readbits_16(alac_file *alac, int bits)
} }
/* supports reading 1 to 32 bits, in big endian format */ /* supports reading 1 to 32 bits, in big endian format */
static uint32_t readbits(alac_file *alac, int bits) static inline uint32_t readbits(alac_file *alac, int bits)
{ {
int32_t result = 0; int32_t result = 0;
@ -153,7 +153,7 @@ static uint32_t readbits(alac_file *alac, int bits)
} }
/* reads a single bit */ /* reads a single bit */
static int readbit(alac_file *alac) static inline int readbit(alac_file *alac)
{ {
int result; int result;
int new_accumulator; int new_accumulator;
@ -173,7 +173,7 @@ static int readbit(alac_file *alac)
return result; return result;
} }
static void unreadbits(alac_file *alac, int bits) static inline void unreadbits(alac_file *alac, int bits)
{ {
int new_accumulator = (alac->input_buffer_bitaccumulator - bits); int new_accumulator = (alac->input_buffer_bitaccumulator - bits);
@ -187,7 +187,7 @@ static void unreadbits(alac_file *alac, int bits)
/* hideously inefficient. could use a bitmask search, /* hideously inefficient. could use a bitmask search,
* alternatively bsr on x86, * alternatively bsr on x86,
*/ */
static int count_leading_zeros(int32_t input) static inline int count_leading_zeros(int32_t input)
{ {
int i = 0; int i = 0;
while (!(0x80000000 & input) && i < 32) while (!(0x80000000 & input) && i < 32)
@ -206,7 +206,16 @@ void basterdised_rice_decompress(alac_file *alac,
int rice_kmodifier, /* arg424->d */ int rice_kmodifier, /* arg424->d */
int rice_historymult, /* arg424->c */ int rice_historymult, /* arg424->c */
int rice_kmodifier_mask /* arg424->e */ int rice_kmodifier_mask /* arg424->e */
) ) ICODE_ATTR;
void basterdised_rice_decompress(alac_file *alac,
int32_t *output_buffer,
int output_size,
int readsamplesize, /* arg_10 */
int rice_initialhistory, /* arg424->b */
int rice_kmodifier, /* arg424->d */
int rice_historymult, /* arg424->c */
int rice_kmodifier_mask /* arg424->e */
)
{ {
int output_count; int output_count;
unsigned int history = rice_initialhistory; unsigned int history = rice_initialhistory;
@ -338,6 +347,13 @@ void basterdised_rice_decompress(alac_file *alac,
((v > 0) ? (1) : \ ((v > 0) ? (1) : \
(0))) (0)))
static void predictor_decompress_fir_adapt(int32_t *error_buffer,
int32_t *buffer_out,
int output_size,
int readsamplesize,
int16_t *predictor_coef_table,
int predictor_coef_num,
int predictor_quantitization) ICODE_ATTR;
static void predictor_decompress_fir_adapt(int32_t *error_buffer, static void predictor_decompress_fir_adapt(int32_t *error_buffer,
int32_t *buffer_out, int32_t *buffer_out,
int output_size, int output_size,
@ -605,6 +621,11 @@ static void predictor_decompress_fir_adapt(int32_t *error_buffer,
} }
} }
void deinterlace_16(int32_t* buffer0,
int32_t* buffer1,
int numsamples,
uint8_t interlacing_shift,
uint8_t interlacing_leftweight) ICODE_ATTR;
void deinterlace_16(int32_t* buffer0, void deinterlace_16(int32_t* buffer0,
int32_t* buffer1, int32_t* buffer1,
int numsamples, int numsamples,

6
apps/codecs/libalac/decomp.h
View file

@ -31,12 +31,12 @@ typedef struct
/* end setinfo stuff */ /* end setinfo stuff */
} alac_file; } alac_file;
void create_alac(int samplesize, int numchannels, alac_file* alac); void create_alac(int samplesize, int numchannels, alac_file* alac) ICODE_ATTR;
int alac_decode_frame(alac_file *alac, int alac_decode_frame(alac_file *alac,
unsigned char *inbuffer, unsigned char *inbuffer,
int32_t outputbuffer[ALAC_MAX_CHANNELS][ALAC_BLOCKSIZE], int32_t outputbuffer[ALAC_MAX_CHANNELS][ALAC_BLOCKSIZE],
void (*yield)(void)); void (*yield)(void)) ICODE_ATTR;
void alac_set_info(alac_file *alac, char *inputbuffer); void alac_set_info(alac_file *alac, char *inputbuffer) ICODE_ATTR;
#endif /* __ALAC__DECOMP_H */ #endif /* __ALAC__DECOMP_H */