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Code Issues Releases Activity

Force speed irrelevant calls to get/put_symbol() to be noinline.

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We need to change decode_line to always_inline because gcc decided not to inline
it anymore once we force some calls to get/put_symbol() to be non inlined and
this decision of gcc would lead to a 10% overall speed loss.
100k smaller object file, no speed change

Originally committed as revision 18673 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-04-24 01:50:09 +00:00
parent 3788e661f1
commit 217d34e307
1 changed files with 13 additions and 5 deletions
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18
libavcodec/ffv1.c
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@ -217,7 +217,7 @@ static inline int get_context(FFV1Context *f, int_fast16_t *src, int_fast16_t *l
return f->quant_table[0][(L-LT) & 0xFF] + f->quant_table[1][(LT-T) & 0xFF] + f->quant_table[2][(T-RT) & 0xFF];
}
static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){
static inline void put_symbol_inline(RangeCoder *c, uint8_t *state, int v, int is_signed){
int i;
if(v){
@ -243,7 +243,11 @@ static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signe
}
}
static inline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){
static void av_noinline put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){
put_symbol_inline(c, state, v, is_signed);
}
static inline int get_symbol_inline(RangeCoder *c, uint8_t *state, int is_signed){
if(get_rac(c, state+0))
return 0;
else{
@ -263,6 +267,10 @@ static inline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){
}
}
static int av_noinline get_symbol(RangeCoder *c, uint8_t *state, int is_signed){
return get_symbol_inline(c, state, is_signed);
}
static inline void update_vlc_state(VlcState * const state, const int v){
int drift= state->drift;
int count= state->count;
@ -384,7 +392,7 @@ static inline int encode_line(FFV1Context *s, int w, int_fast16_t *sample[2], in
diff= fold(diff, bits);
if(s->ac){
put_symbol(c, p->state[context], diff, 1);
put_symbol_inline(c, p->state[context], diff, 1);
}else{
if(context == 0) run_mode=1;
@ -702,7 +710,7 @@ static av_cold int common_end(AVCodecContext *avctx){
return 0;
}
static inline void decode_line(FFV1Context *s, int w, int_fast16_t *sample[2], int plane_index, int bits){
static av_always_inline void decode_line(FFV1Context *s, int w, int_fast16_t *sample[2], int plane_index, int bits){
PlaneContext * const p= &s->plane[plane_index];
RangeCoder * const c= &s->c;
int x;
@ -722,7 +730,7 @@ static inline void decode_line(FFV1Context *s, int w, int_fast16_t *sample[2], i
if(s->ac){
diff= get_symbol(c, p->state[context], 1);
diff= get_symbol_inline(c, p->state[context], 1);
}else{
if(context == 0 && run_mode==0) run_mode=1;