4e3e333a79
swscale: error dithering for 16/9/10-bit to 8-bit.
...
Based on a somewhat similar idea in FFmpeg's swscale copy.
2011-07-08 15:15:30 -07:00
7d7bacf0f1
swscale: fix overflow in 16-bit vertical scaling.
...
We operated on 31-bits, but with e.g. lanczos scaling, values can
add up to beyond 0x80000000, thus leading to output of zeroes. Drop
one bit of precision fixes this.
2011-07-08 15:15:30 -07:00
bf2cba4532
swscale: fix crash in 8-bpc bilinear output without alpha.
...
We accessed the alpha array even it wasn't used and didn't
exist, hence leading to a NULL pointer segfault.
2011-07-08 15:15:30 -07:00
f44d50a94c
swscale: fix 16-bit horizontal scaling underflow.
...
When using e.g. lanczos scaling, values can drop below 0, so they
should never be unsigned.
2011-07-08 15:15:30 -07:00
e589e4b82d
Remove unused static tables and static inline functions.
2011-07-04 14:59:35 +02:00
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
81cc7d0bd1
swscale: fix another yuv range conversion overflow in 16bit scaling.
2011-06-30 07:05:52 -07:00
705b21a06e
swscale: Unbreak build with --enable-small
...
This fixes building with --enable-small, by using the correct
variable name.
Signed-off-by: Martin Storsjö <martin@martin.st>
2011-06-30 11:58:38 +03:00
e0b8fff6c7
swscale: fix yuv range correction when using 16-bit scaling.
2011-06-29 21:04:45 -07:00
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
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
dff5a83532
swscale: re-add support for non-native endianness.
...
This works through some non-obvious hacks in utils.c.
2011-06-27 18:10:41 -07:00
3d3c814937
swscale: disentangle yuv2rgbX_c_full() into small functions.
...
This is part of the Great Evil Plan to simplify swscale.
2011-06-27 18:10:24 -07:00
6fba14eecb
swscale: split yuv2packed[12X]_c() remainders into small functions.
...
This is part of the Great Evil Plan to simplify swscale.
2011-06-27 18:10:03 -07:00
97535ffb97
swscale: remove unused xInc/srcW arguments from hScale().
2011-06-26 14:41:44 -07:00
4e05830205
swscale: remove misplaced comment.
...
The comment should have been placed only in
yuv2rgb48_X_c_template, not yuv2rgb48_1_c_template.
2011-06-14 16:55:24 -04:00
9f63211175
swscale: split out RGB48 output functions from yuv2packed[12X]_c().
...
This is part of the Great Evil Plan to simplify swscale. Note that
you'll see some code duplication between the output functions for
different RGB variants, and even between packed-YUV and RGB
variants. This is intentional because it improves readability.
2011-06-14 15:59:14 -04:00
0af8a71d66
swscale: fix JPEG-range YUV scaling artifacts.
...
YUV planes were marked as uint16_t, but they contained signed data.
Fixes issue 1108 and 675.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-06-14 09:46:49 -04:00
103278f7b0
libavutil/swscale: YUV444P10/YUV444P9 support.
...
Also add missing glue code for recently added YUV422P10 formats
to swscale.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-06-10 15:12:24 -04:00
af2faf2076
swscale: split YUYV output out of yuv2packed[12X]_c().
...
This is part of the Great Evil Plan to simplify swscale.
2011-06-09 20:52:38 -04:00
6b105e3ee6
swscale: extract monowhite/black output from yuv2packed[12X]_c().
...
This is part of the Great Evil Plan to simplify swscale.
2011-06-09 16:47:45 -04:00
6d4d483eee
swscale: de-macro'ify RGB15/16/32 input functions.
...
Inline functions are easier to read, maintain, modify and test,
which justifies the slightly increased source size. This patch
also adds support for non-native endianness RGB15/16 and fixes
isSupportedOutput() to no longer claim that we support writing
non-native RGB565/555/444.
2011-06-09 16:47:45 -04:00
e2babb9b47
swscale: rearrange code.
...
This way the code in the file is less cluttered all-over-the-
place.
2011-06-09 16:47:45 -04:00
dbd3183935
swscale: change 48bit RGB input macros to inline functions.
...
Inline functions are slightly larger in source code, but
are easier to handle in source code editors. The binary code
generated is the same.
2011-06-09 09:29:20 -04:00
f30ee65700
swscale: change 9/10bit YUV input macros to inline functions.
...
Inline functions are slightly larger in source code, but
are easier to handle in source code editors. The binary code
generated is the same.
2011-06-09 09:29:03 -04:00
aa39f5f6d6
swscale: extract gray16 output functions from yuv2packed[12X]().
...
This is part of the Great Evil Plan to simplify swscale.
2011-06-09 09:29:02 -04:00
f1e0b90c64
swscale: use standard clipping functions.
...
This generates better code on some non-x86 architectures.
2011-06-09 09:27:51 -04:00
e458b53605
swscale: merge macros that are used only once.
...
This reduces source code size without affecting the binary.
2011-06-09 09:26:00 -04:00
6e5a8d3c9a
swscale: fix function declarations in swscale.c.
...
Remove inline keyword from functions that are never inlined.
Use av_always_inline for functions that should be force-inlined
for performance reasons. Use av_cold for init functions.
2011-06-09 09:25:59 -04:00
9d84dfce93
swscale: remove unused function.
...
Use of this wrapper was removed in a previous patch, but I
forgot to actually remove the function itself.
2011-06-08 11:08:20 -04:00
edeb56fa31
swscale: remove duplicate conversion routine in swScale().
2011-06-07 10:05:55 -04:00
df91d09174
swscale: integrate yuv2nv12X_C into yuv2yuvX() function pointers.
2011-06-07 10:05:54 -04:00
ca364a5b43
swscale: extract SWS_FULL_CHR_H_INT conditional into init code.
2011-06-07 10:03:47 -04:00
b3b28b080f
swscale: cosmetics.
2011-06-07 10:03:46 -04:00
ea28175312
swscale: remove alp/chr/lumSrcOffset.
...
They are hacks added to reuse the same scaling function for
different formats and they may cause problems when SIMD
implementation of the same functions are used along with pure
C functions.
2011-06-07 10:03:18 -04:00
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
6af2801088
swscale: split swscale.c in unscaled and generic conversion routines.
...
This duplicates the function fillPlane().
2011-06-03 09:52:09 -07:00
2762ee3034
swscale: cosmetics.
...
Remove duplicate "inC" and "_c" functions that do the same thing;
give each function that handles data and acts as a function pointer
a "_c" suffix; remove "_c" suffix from functions that are inherently
not optimizable. Remove inline keyword from functions that are only
used through function pointers.
2011-06-03 09:52:09 -07:00
1674bd2abe
swscale: integrate (literally) swscale_template.c in swscale.c.
2011-06-03 09:52:09 -07:00
983260b0a4
swscale: split out x86/swscale_template.c from swscale.c.
2011-06-03 09:52:09 -07:00
67d80a5421
swscale: split out ppc _template.c files from main swscale.c.
2011-06-03 09:52:09 -07:00
a3e9bb5dee
swscale: remove indirections in ppc/swscale_template.c.
2011-06-03 09:52:09 -07:00
0e5d31b16b
swscale: split out unscaled altivec YUV converters in their own file.
2011-06-03 09:52:09 -07:00
0d793db1b0
swscale: remove unused COMPILE_TEMPLATE_ALTIVEC.
2011-06-02 21:29:59 -07:00
b8e893399f
sws: replace all long with int.
...
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-05-28 10:03:37 -04:00
b4a224c5e4
swscale: split chroma buffers into separate U/V planes.
...
Preparatory step to implement support for sizes > VOFW.
2011-05-26 09:31:27 -04:00
aaca69c130
swscale: remove swScale_{c,MMX,MMX2} duplication.
2011-05-24 14:50:15 -04:00
1dd4f4be5a
swscale: remove AMD3DNOW "optimizations".
...
The functions are identical to their MMX counterparts. Thus,
pretending that swscale is highly optimized for AMD3DNOW
extensions is a poorly executed practical joke at best.
2011-05-24 10:19:41 -04:00
fe43d5d71e
swscale: remove duplicate code in ppc/ subdirectory.
2011-05-24 10:16:32 -04:00
e66149e714
swscale: force --enable-runtime-cpudetect and remove SWS_CPU_CAPS_*.
2011-05-24 10:03:26 -04:00
Ronald S. Bultje