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avcodec/qtrle : 32bpp dec copy two raw argb value at the same time

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benchmark on x86_64 :
38 fps -> 40 fps
This commit is contained in:
Martin Vignali 2019-02-26 10:38:10 +01:00
parent 5496a73488
commit 3278ea67c8
1 changed files with 10 additions and 5 deletions
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15
libavcodec/qtrle.c
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@ -346,7 +346,7 @@ static void qtrle_decode_24bpp(QtrleContext *s, int row_ptr, int lines_to_change
static void qtrle_decode_32bpp(QtrleContext *s, int row_ptr, int lines_to_change)
{
int rle_code;
int rle_code, rle_code_half;
int pixel_ptr;
int row_inc = s->frame->linesize[0];
unsigned int argb;
@ -379,10 +379,15 @@ static void qtrle_decode_32bpp(QtrleContext *s, int row_ptr, int lines_to_change
CHECK_PIXEL_PTR(rle_code * 4);
/* copy pixels directly to output */
while (rle_code--) {
argb = bytestream2_get_ne32(&s->g);
AV_WN32A(rgb + pixel_ptr, argb);
pixel_ptr += 4;
rle_code_half = rle_code / 2;
while (rle_code_half--) { /* copy 2 argb raw value at the same time */
AV_WN64A(rgb + pixel_ptr, bytestream2_get_ne64(&s->g));
pixel_ptr += 8;
}
if (rle_code % 2 != 0){ /* not even raw value */
AV_WN32A(rgb + pixel_ptr, bytestream2_get_ne32(&s->g));
pixel_ptr += 4;
}
}
}