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swscale: split yuv2packedX_altivec in smaller functions. 

This will likely lead to a considerable performance boost,
since it removes a branch from the inner loop. Part of the
Great Evil Plan to simplify swscale.
This commit is contained in:
Ronald S. Bultje 2011-06-16 12:04:24 -04:00 committed by Ronald Bultje
parent 0d994b2f45
commit dc179ec819
3 changed files with 46 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
libswscale/ppc/swscale_altivec.c
View File

@ -414,10 +414,14 @@ void ff_sws_init_swScale_altivec(SwsContext *c)
/* The following list of supported dstFormat values should
* match what's found in the body of ff_yuv2packedX_altivec() */
if (!(c->flags & (SWS_BITEXACT | SWS_FULL_CHR_H_INT)) && !c->alpPixBuf &&
(c->dstFormat==PIX_FMT_ABGR || c->dstFormat==PIX_FMT_BGRA ||
c->dstFormat==PIX_FMT_BGR24 || c->dstFormat==PIX_FMT_RGB24 ||
c->dstFormat==PIX_FMT_RGBA || c->dstFormat==PIX_FMT_ARGB)) {
c->yuv2packedX = ff_yuv2packedX_altivec;
if (!(c->flags & (SWS_BITEXACT | SWS_FULL_CHR_H_INT)) && !c->alpPixBuf) {
switch (c->dstFormat) {
case PIX_FMT_ABGR: c->yuv2packedX = ff_yuv2abgr_X_altivec; break;
case PIX_FMT_BGRA: c->yuv2packedX = ff_yuv2bgra_X_altivec; break;
case PIX_FMT_ARGB: c->yuv2packedX = ff_yuv2argb_X_altivec; break;
case PIX_FMT_RGBA: c->yuv2packedX = ff_yuv2rgba_X_altivec; break;
case PIX_FMT_BGR24: c->yuv2packedX = ff_yuv2bgr24_X_altivec; break;
case PIX_FMT_RGB24: c->yuv2packedX = ff_yuv2rgb24_X_altivec; break;
}
}
}

28
libswscale/ppc/yuv2rgb_altivec.c
View File

@ -626,13 +626,13 @@ void ff_yuv2rgb_init_tables_altivec(SwsContext *c, const int inv_table[4], int b
}
void
static av_always_inline void
ff_yuv2packedX_altivec(SwsContext *c, const int16_t *lumFilter,
const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest,
int dstW, int dstY)
int dstW, int dstY, enum PixelFormat target)
{
int i,j;
vector signed short X,X0,X1,Y0,U0,V0,Y1,U1,V1,U,V;
@ -706,7 +706,7 @@ ff_yuv2packedX_altivec(SwsContext *c, const int16_t *lumFilter,
G = vec_packclp (G0,G1);
B = vec_packclp (B0,B1);
switch(c->dstFormat) {
switch(target) {
case PIX_FMT_ABGR: out_abgr (R,G,B,out); break;
case PIX_FMT_BGRA: out_bgra (R,G,B,out); break;
case PIX_FMT_RGBA: out_rgba (R,G,B,out); break;
@ -785,7 +785,7 @@ ff_yuv2packedX_altivec(SwsContext *c, const int16_t *lumFilter,
B = vec_packclp (B0,B1);
nout = (vector unsigned char *)scratch;
switch(c->dstFormat) {
switch(target) {
case PIX_FMT_ABGR: out_abgr (R,G,B,nout); break;
case PIX_FMT_BGRA: out_bgra (R,G,B,nout); break;
case PIX_FMT_RGBA: out_rgba (R,G,B,nout); break;
@ -803,3 +803,23 @@ ff_yuv2packedX_altivec(SwsContext *c, const int16_t *lumFilter,
}
}
#define YUV2PACKEDX_WRAPPER(suffix, pixfmt) \
void ff_yuv2 ## suffix ## _X_altivec(SwsContext *c, const int16_t *lumFilter, \
const int16_t **lumSrc, int lumFilterSize, \
const int16_t *chrFilter, const int16_t **chrUSrc, \
const int16_t **chrVSrc, int chrFilterSize, \
const int16_t **alpSrc, uint8_t *dest, \
int dstW, int dstY) \
{ \
ff_yuv2packedX_altivec(c, lumFilter, lumSrc, lumFilterSize, \
chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
alpSrc, dest, dstW, dstY, pixfmt); \
}
YUV2PACKEDX_WRAPPER(abgr, PIX_FMT_ABGR);
YUV2PACKEDX_WRAPPER(bgra, PIX_FMT_BGRA);
YUV2PACKEDX_WRAPPER(argb, PIX_FMT_ARGB);
YUV2PACKEDX_WRAPPER(rgba, PIX_FMT_RGBA);
YUV2PACKEDX_WRAPPER(rgb24, PIX_FMT_RGB24);
YUV2PACKEDX_WRAPPER(bgr24, PIX_FMT_BGR24);

18
libswscale/ppc/yuv2rgb_altivec.h
View File

@ -24,11 +24,19 @@
#ifndef PPC_YUV2RGB_ALTIVEC_H
#define PPC_YUV2RGB_ALTIVEC_H 1
void ff_yuv2packedX_altivec(SwsContext *c, const int16_t *lumFilter,
const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest,
#define YUV2PACKEDX_HEADER(suffix) \
void ff_yuv2 ## suffix ## _X_altivec(SwsContext *c, const int16_t *lumFilter, \
const int16_t **lumSrc, int lumFilterSize, \
const int16_t *chrFilter, const int16_t **chrUSrc, \
const int16_t **chrVSrc, int chrFilterSize, \
const int16_t **alpSrc, uint8_t *dest, \
int dstW, int dstY);
YUV2PACKEDX_HEADER(abgr);
YUV2PACKEDX_HEADER(bgra);
YUV2PACKEDX_HEADER(argb);
YUV2PACKEDX_HEADER(rgba);
YUV2PACKEDX_HEADER(rgb24);
YUV2PACKEDX_HEADER(bgr24);
#endif /* PPC_YUV2RGB_ALTIVEC_H */