Commit Graph

22 Commits

Author SHA1 Message Date
Anton Khirnov 716d413c13 Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat 2012-10-08 07:13:26 +02:00
Mans Rullgard 07eb7e20af ppc: swscale: rework yuv2planeX_altivec()
This gets rid of the variable-length scratch buffer by filtering 16
pixels at a time and writing directly to the destination.  The extra
loads this requires to load the source values are compensated by not
doing a round-trip to memory before shifting.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-05 22:33:32 +01:00
Diego Biurrun 5a6e3c039c swscale: Mark all init functions as av_cold 2012-07-23 01:30:05 +02:00
Ronald S. Bultje 2254b559cb swscale: make filterPos 32bit.
Fixes overflows for large image sizes.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2012-03-06 10:47:41 -08:00
Diego Biurrun 04217de4d6 swscale: K&R formatting cosmetics for PowerPC code (part I/II) 2012-02-21 20:17:57 +01:00
Diego Biurrun 33ad8c3cab cosmetics: Remove some unnecessary block braces. 2012-01-25 13:14:49 +01:00
Ronald S. Bultje f48b12e0a6 swscale: update altivec yuv2planeX asm to new per-plane API. 2011-10-22 10:35:14 -07:00
Kieran Kunhya ff7913aef1 Split up yuv2yuvX functions
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-10-22 10:35:13 -07:00
Mans Rullgard d853e571ad ppc: fix some pointer to integer casts
Use uintptr_t instead of plain int.  Without this change, the
comparisons will come out wrong for pointers in certain ranges.
Fixes random failures on ppc64.  Also fixes some compiler warnings.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-09-25 18:33:38 +01:00
Ronald S. Bultje 3f04ab4fcd swscale: split hScale() function pointer into h[cy]Scale().
This allows using more specific implementations for chroma/luma, e.g.
we can make assumptions on filterSize being constant, thus avoiding
that test at runtime.
2011-08-17 20:56:06 -07:00
Luca Barbato 3304a1e69a swscale: add dithering to yuv2yuvX_altivec_real
It just does that part in scalar form, I doubt using a vector store
over 2 array would speed it up particularly.

The function should be written to not use a scratch buffer.
2011-08-13 00:06:04 +02:00
Ronald S. Bultje 28c1115a91 swscale: use 15-bit intermediates for 9/10-bit scaling. 2011-08-12 11:54:25 -07:00
Ronald S. Bultje 8a8d0ce208 swscale: for >8bit scaling, read in native bit-depth.
For 9/10bit, it means we don't have to upscale to 16bit before
actual scaling or pixel format conversion, and thus a performance
gain.
2011-07-01 09:08:26 -07:00
Ronald S. Bultje ef1ee362b3 swscale: implement >8bit scaling support.
This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
2011-06-29 09:45:52 -07:00
Mans Rullgard 635930d466 PPC: swscale: disable altivec functions for unsupported formats
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-28 23:22:31 +01:00
Ronald S. Bultje 13a099799e swscale: change prototypes of scaled YUV output functions.
Remove unused variables "flags" and "dstFormat" in yuv2packed1,
merge source rows per plane for yuv2packed[12], and make every
source argument int16_t (some where invalidly set to uint16_t).
This prevents stack pollution and is part of the Great Evil Plan
to simplify swscale.
2011-06-27 21:24:44 -07:00
Ronald S. Bultje dc179ec819 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.
2011-06-27 18:05:16 -07:00
Ronald S. Bultje 97535ffb97 swscale: remove unused xInc/srcW arguments from hScale(). 2011-06-26 14:41:44 -07:00
Ronald S. Bultje ca364a5b43 swscale: extract SWS_FULL_CHR_H_INT conditional into init code. 2011-06-07 10:03:47 -04:00
Ronald S. Bultje bda9b20fa4 swscale: un-special-case yuv2yuvX16_c().
Make yuv2yuvX16_c a function pointer for yuv2yuvX(), so that the
function pointer becomes bitdepth-independent.
2011-06-07 10:03:12 -04:00
Ronald S. Bultje 075d0ae72c swscale: enable hScale_altivec_real. 2011-06-03 09:52:09 -07:00
Ronald S. Bultje 67d80a5421 swscale: split out ppc _template.c files from main swscale.c. 2011-06-03 09:52:09 -07:00