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Added a few "restrict" keywords and changed some divisions to shifts

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This commit is contained in:
Jean-Marc Valin 2008-03-22 09:01:50 +11:00
parent 3c2fe0fbee
commit a536f77202
6 changed files with 19 additions and 19 deletions
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12
libcelt/celt.c
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@ -156,14 +156,14 @@ static inline celt_int16_t SIG2INT16(celt_sig_t x)
}
/** Apply window and compute the MDCT for all sub-frames and all channels in a frame */
static celt_word32_t compute_mdcts(const mdct_lookup *lookup, const celt_word16_t *window, celt_sig_t *in, celt_sig_t *out, int N, int overlap, int B, int C)
static celt_word32_t compute_mdcts(const mdct_lookup *lookup, const celt_word16_t * restrict window, celt_sig_t *in, celt_sig_t *out, int N, int overlap, int B, int C)
{
int i, c, N4;
celt_word32_t E = 0;
VARDECL(celt_word32_t, x);
VARDECL(celt_word32_t, tmp);
SAVE_STACK;
N4 = (N-overlap)/2;
N4 = (N-overlap)>>1;
ALLOC(x, 2*N, celt_word32_t);
ALLOC(tmp, N, celt_word32_t);
for (c=0;c<C;c++)
@ -196,7 +196,7 @@ static celt_word32_t compute_mdcts(const mdct_lookup *lookup, const celt_word16_
}
/** Compute the IMDCT and apply window for all sub-frames and all channels in a frame */
static void compute_inv_mdcts(const mdct_lookup *lookup, const celt_word16_t *window, celt_sig_t *X, celt_sig_t *out_mem, celt_sig_t *mdct_overlap, int N, int overlap, int B, int C)
static void compute_inv_mdcts(const mdct_lookup *lookup, const celt_word16_t * restrict window, celt_sig_t *X, celt_sig_t *out_mem, celt_sig_t *mdct_overlap, int N, int overlap, int B, int C)
{
int i, c, N4;
VARDECL(celt_word32_t, x);
@ -204,7 +204,7 @@ static void compute_inv_mdcts(const mdct_lookup *lookup, const celt_word16_t *wi
SAVE_STACK;
ALLOC(x, 2*N, celt_word32_t);
ALLOC(tmp, N, celt_word32_t);
N4 = (N-overlap)/2;
N4 = (N-overlap)>>1;
for (c=0;c<C;c++)
{
for (i=0;i<B;i++)
@ -252,7 +252,7 @@ int EXPORT celt_encode(CELTEncoder *st, celt_int16_t *pcm, unsigned char *compre
N = st->block_size;
B = st->nb_blocks;
C = st->mode->nbChannels;
N4 = (N-st->overlap)/2;
N4 = (N-st->overlap)>>1;
ALLOC(in, (B+1)*C*N-2*N4, celt_sig_t);
@ -565,7 +565,7 @@ int EXPORT celt_decode(CELTDecoder *st, unsigned char *data, int len, celt_int16
N = st->block_size;
B = st->nb_blocks;
C = st->mode->nbChannels;
N4 = (N-st->overlap)/2;
N4 = (N-st->overlap)>>1;
ALLOC(freq, C*B*N, celt_sig_t); /**< Interleaved signal MDCTs */
ALLOC(X, C*B*N, celt_norm_t); /**< Interleaved normalised MDCTs */