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ade54335b2
Before this commit, the (32-bit only) simple idct came in three versions: A pure MMX IDCT and idct-put and idct-add versions which use SSE2 at the put and add stage, but still use pure MMX for the actual IDCT. This commit ports said IDCT to SSE2; this was entirely trivial for the IDCT1-5 and IDCT7 parts (where one can directly use the full register width) and was easy for IDCT6 and IDCT8 (involving a few movhps and pshufds). Unfortunately, DC_COND_INIT and Z_COND_INIT still use only the lower half of the registers. This saved 4658B here; the benchmarking option of the dct test tool showed a 15% speedup. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> |
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| .. | ||
| aarch64 | ||
| arm | ||
| ppc | ||
| x86 | ||
| .gitignore | ||
| apv.c | ||
| av1_levels.c | ||
| avcodec.c | ||
| avpacket.c | ||
| bitstream_be.c | ||
| bitstream_le.c | ||
| bitstream_template.c | ||
| cabac.c | ||
| celp_math.c | ||
| codec_desc.c | ||
| dct.c | ||
| golomb.c | ||
| h264_levels.c | ||
| h265_levels.c | ||
| hashtable.c | ||
| htmlsubtitles.c | ||
| jpeg2000dwt.c | ||
| mathops.c | ||
| mjpegenc_huffman.c | ||
| motion.c | ||
| mpeg12framerate.c | ||
| rangecoder.c | ||
| snowenc.c | ||