diff options
Diffstat (limited to 'src/libffmpeg/libavcodec/imgresample.c')
| -rw-r--r-- | src/libffmpeg/libavcodec/imgresample.c | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/src/libffmpeg/libavcodec/imgresample.c b/src/libffmpeg/libavcodec/imgresample.c index 140894d36..a18645e33 100644 --- a/src/libffmpeg/libavcodec/imgresample.c +++ b/src/libffmpeg/libavcodec/imgresample.c @@ -58,11 +58,12 @@ static inline int get_phase(int pos) } /* This function must be optimized */ -static void h_resample_fast(uint8_t *dst, int dst_width, uint8_t *src, int src_width, - int src_start, int src_incr, int16_t *filters) +static void h_resample_fast(uint8_t *dst, int dst_width, const uint8_t *src, + int src_width, int src_start, int src_incr, + int16_t *filters) { int src_pos, phase, sum, i; - uint8_t *s; + const uint8_t *s; int16_t *filter; src_pos = src_start; @@ -101,11 +102,11 @@ static void h_resample_fast(uint8_t *dst, int dst_width, uint8_t *src, int src_w } /* This function must be optimized */ -static void v_resample(uint8_t *dst, int dst_width, uint8_t *src, int wrap, - int16_t *filter) +static void v_resample(uint8_t *dst, int dst_width, const uint8_t *src, + int wrap, int16_t *filter) { int sum, i; - uint8_t *s; + const uint8_t *s; s = src; for(i=0;i<dst_width;i++) { @@ -160,11 +161,12 @@ static void v_resample(uint8_t *dst, int dst_width, uint8_t *src, int wrap, #define DUMP(reg) movq_r2m(reg, tmp); printf(#reg "=%016Lx\n", tmp.uq); /* XXX: do four pixels at a time */ -static void h_resample_fast4_mmx(uint8_t *dst, int dst_width, uint8_t *src, int src_width, +static void h_resample_fast4_mmx(uint8_t *dst, int dst_width, + const uint8_t *src, int src_width, int src_start, int src_incr, int16_t *filters) { int src_pos, phase; - uint8_t *s; + const uint8_t *s; int16_t *filter; mmx_t tmp; @@ -204,11 +206,11 @@ static void h_resample_fast4_mmx(uint8_t *dst, int dst_width, uint8_t *src, int emms(); } -static void v_resample4_mmx(uint8_t *dst, int dst_width, uint8_t *src, int wrap, - int16_t *filter) +static void v_resample4_mmx(uint8_t *dst, int dst_width, const uint8_t *src, + int wrap, int16_t *filter) { int sum, i, v; - uint8_t *s; + const uint8_t *s; mmx_t tmp; mmx_t coefs[4]; @@ -280,11 +282,11 @@ typedef union { signed short s[8]; } vec_ss_t; -void v_resample16_altivec(uint8_t *dst, int dst_width, uint8_t *src, int wrap, - int16_t *filter) +void v_resample16_altivec(uint8_t *dst, int dst_width, const uint8_t *src, + int wrap, int16_t *filter) { int sum, i; - uint8_t *s; + const uint8_t *s; vector unsigned char *tv, tmp, dstv, zero; vec_ss_t srchv[4], srclv[4], fv[4]; vector signed short zeros, sumhv, sumlv; @@ -397,11 +399,12 @@ void v_resample16_altivec(uint8_t *dst, int dst_width, uint8_t *src, int wrap, #endif /* slow version to handle limit cases. Does not need optimisation */ -static void h_resample_slow(uint8_t *dst, int dst_width, uint8_t *src, int src_width, +static void h_resample_slow(uint8_t *dst, int dst_width, + const uint8_t *src, int src_width, int src_start, int src_incr, int16_t *filters) { int src_pos, phase, sum, j, v, i; - uint8_t *s, *src_end; + const uint8_t *s, *src_end; int16_t *filter; src_end = src + src_width; @@ -432,8 +435,9 @@ static void h_resample_slow(uint8_t *dst, int dst_width, uint8_t *src, int src_w } } -static void h_resample(uint8_t *dst, int dst_width, uint8_t *src, int src_width, - int src_start, int src_incr, int16_t *filters) +static void h_resample(uint8_t *dst, int dst_width, const uint8_t *src, + int src_width, int src_start, int src_incr, + int16_t *filters) { int n, src_end; @@ -607,7 +611,7 @@ ImgReSampleContext *img_resample_full_init(int owidth, int oheight, } void img_resample(ImgReSampleContext *s, - AVPicture *output, AVPicture *input) + AVPicture *output, const AVPicture *input) { int i, shift; |