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* swscale: #include "libavutil/mathematics.h"Reinhard Tartler2011-12-01
| | | | | | | | this file uses the M_PI macro since 4e74187db2f5db52f88729efc662df9d6bc763e1, so include the correct header directly. Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* swscale: fix signed overflow in yuv2mono_X_c_templateMans Rullgard2011-11-26
| | | | | | | | As old bits are shifted out of the accumulator, they cause signed overflows when they reach the end. Making the variable unsigned fixes this. Signed-off-by: Mans Rullgard <mans@mansr.com>
* swscale: Readd #define _SVID_SOURCEMartin Storsjö2011-11-25
| | | | | | | | | | | | | | | | | This was removed erroneously in 046f081b46c8479820409cf8f530b988221bd15b. This define still is necessary for getting MAP_ANONYMOUS defined on linux/glibc, despite the define reshuffling done in that commit. Without MAP_ANONYMOUS defined, the mprotect calls for setting the generated mmx2 scaler code pages executable are left out, causing crashes if that codepath is chosen. This patch fixes scaling from 192x144 to 320x240 with -sws_flags fast_bilinear, which crashes on linux at the moment. Signed-off-by: Martin Storsjö <martin@martin.st>
* swscale: fix failing fate tests.Ronald S. Bultje2011-11-24
| | | | isGray() is left as a FIXME for later.
* swscale: add support for planar RGB input.Ronald S. Bultje2011-11-24
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* Clean up swscale pixfmt macros using av_pix_fmt_descriptors[].Ronald S. Bultje2011-11-24
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* swscale: Fix stack alignment for SSEJohn Stebbins2011-11-19
| | | | | | | | Although gcc guarantees 16 byte stack alignment, threads under WinXP don't appear to be guaranteed to start stack aligned. So fix the alignment. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* swscale: handle unaligned buffers in yuv2plane1Ronald S. Bultje2011-11-13
| | | | | | | The issue had been introduced in c435653627529e22d74214c2266f571255e404d6 Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* swscale: add padding to conversion buffer.Sean McGovern2011-11-11
| | | | | | | | | | | | Altivec does unaligned reads from this buffer in hscale_altivec_real(), and can thus read up to 16 bytes beyond the end of the buffer. Therefore, add an extra 16 bytes of padding at the end of the conversion buffer. This fixes fate-lavfi-pixfmts_scale on AltiVec-enabled builds under valgrind. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* swscale: write yuv2plane1 MMX/SSE2/SSE4/AVX functions.Ronald S. Bultje2011-11-05
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* swscale: align vertical filtersize by 2 on x86.Ronald S. Bultje2011-11-05
| | | | | | The vertical scaler handles 2 rows at a time and thus requires alignment by 2, or else it'll read invalid memory and result in corrupt output.
* swscale: add missing colons to x86 assembly yuv2planeX.Ronald S. Bultje2011-10-23
| | | | This fixes assembling using "nasm".
* swscale: update altivec yuv2planeX asm to new per-plane API.Ronald S. Bultje2011-10-22
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* swscale: make yuv2yuvX_10_sse2/avx 8/9/16-bits aware.Ronald S. Bultje2011-10-22
| | | | Also implement MMX/MMX2 versions and SSE4 versions.
* yuv2planeX10 SIMDKieran Kunhya2011-10-22
| | | | Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* swscale: decide whether to use yuv2plane1/X on a per-plane basis.Ronald S. Bultje2011-10-22
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* swscale: reintroduce full precision in 16-bit output.Ronald S. Bultje2011-10-22
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* Split up yuv2yuvX functionsKieran Kunhya2011-10-22
| | | | Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* Split out yuv2yuv1 luma and chroma in order to make them generic DSP functionsKieran Kunhya2011-10-22
| | | | Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* swscale: fix signed shift overflows in ff_yuv2rgb_c_init_tables()Mans Rullgard2011-10-21
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* sws/pixfmt/pixdesc: add support for yuv420p9le/be.Ronald S. Bultje2011-10-21
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* swscale: prevent overflow in coefficient calculation.Ronald S. Bultje2011-10-21
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* swscale: prevent overflow during initializationRonald Bultje2011-10-18
| | | | Signed-off-by: Janne Grunau <janne-libav@jannau.net>
* AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*Anton Khirnov2011-10-12
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* sws: support yuv444p9/10 output.Anton Khirnov2011-10-12
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* swscale: use aligned move for storage into temporary buffer.Ronald S. Bultje2011-10-11
| | | | The intermediate buffer is always aligned.
* ppc: fix some pointer to integer castsMans Rullgard2011-09-25
| | | | | | | | 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>
* Fix unnecessary shift with 9/10bit vertical scalingKieran Kunhya2011-09-23
| | | | Signed-off-by: Diego Biurrun <diego@biurrun.de>
* swscale: fix byte overreads in SSE-optimized hscale().Ronald S. Bultje2011-09-15
| | | | | | SSE-optimized hScale() scales up to 4 pixels at once, so we need to allocate up to 3 padding pixels to prevent overreads. This fixes valgrind errors in various swscale-tests on fate.
* sws: implement MMX/SSE2/SSSE3/SSE4 versions for horizontal scaling.Ronald S. Bultje2011-09-13
| | | | | | Speed: from 3.9x to 9.6x speed improvement over C, and some small (up to 15%) speed improvements over existing MMX code (particularly for bigger filters).
* lavf,lavc,sws: add {avcodec,avformat,sws}_get_class() functions.Anton Khirnov2011-09-03
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* swscale: split hScale() function pointer into h[cy]Scale().Ronald S. Bultje2011-08-17
| | | | | | 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.
* swscale: add dithering to yuv2yuvX_altivec_realLuca Barbato2011-08-13
| | | | | | | 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.
* swscale: use 15-bit intermediates for 9/10-bit scaling.Ronald S. Bultje2011-08-12
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* lsws: remove optimization debug logs in sws_init_context()Stefano Sabatini2011-08-05
| | | | | | | | | The logged information is possibly false, and it tends to be outdated after each change since the logging code needs to be manually updated. Simplify and prevent confusing wrong debug messages. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* lsws: use array for storing the supported in/out informationStefano Sabatini2011-08-05
| | | | | | | | | Also remove the unnecessary isSupportedIn/Out macros. Make the code more compact/readable, and simplify the access to lsws-specific pixel format information. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* Revert "swscale: use 15-bit intermediates for 9/10-bit scaling."Ronald S. Bultje2011-08-02
| | | | | | This reverts commit ac0fb5934893be554a44d2a1eb7a3bc7bf39da4a. It causes valgrind errors which I'll want to investigate before resubmitting this.
* swscale: use 15-bit intermediates for 9/10-bit scaling.Ronald S. Bultje2011-08-02
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* Do not convert RGB buffer at once when stride does not fit exact samples.Kostya Shishkov2011-07-30
| | | | | | | | | | | When converting RGB format to RGB format with the same bits per sample, unscaled path performs conversion on the whole buffer at once. For non-multiple-of-16 BGR24 to RGB24 conversion it means that padding at the end of line will be converted too. Since it may be of arbitrary length (e.g. 8 bytes), operating on the whole buffer produces obviously wrong results. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* swscale: mark YUV422P10(LE,BE) as supported for outputJoseph Artsimovich2011-07-21
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* swscale: extend mmx padding.Ronald S. Bultje2011-07-14
| | | | Fixes a crash when forcing libc to strictly adhere to malloc sizes.
* swscale: clip unscaled colorspace conversion path.Ronald S. Bultje2011-07-14
| | | | | Prevents overflows on very bright scenes when adding dither, which may lead to black dots.
* doxygen: Make sure parameter names match between .c and .h files.Diego Biurrun2011-07-14
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* swscale: fix crash with dithering due incorrect offset calculation.Anton Mitrofanov2011-07-10
| | | | | | | | ptrdiff_t can be 4 bytes, which leads to the next element being 4-byte aligned and thus at a different offset than intended. Forcing 8-byte alignment forces equal offset of dither16/32 on x86-32 and x86-64. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
* swscale: rename uv_off/uv_off2 to uv_off_px/byte.Ronald S. Bultje2011-07-08
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* swscale: implement error dithering in planarCopyWrapper.Ronald S. Bultje2011-07-08
| | | | Based on a somewhat similar idea in FFmpeg's swscale.
* swscale: error dithering for 16/9/10-bit to 8-bit.Ronald S. Bultje2011-07-08
| | | | Based on a somewhat similar idea in FFmpeg's swscale copy.
* swscale: fix overflow in 16-bit vertical scaling.Ronald S. Bultje2011-07-08
| | | | | | 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.
* swscale: fix crash in 8-bpc bilinear output without alpha.Ronald S. Bultje2011-07-08
| | | | | We accessed the alpha array even it wasn't used and didn't exist, hence leading to a NULL pointer segfault.
* swscale: fix 16-bit horizontal scaling underflow.Ronald S. Bultje2011-07-08
| | | | | When using e.g. lanczos scaling, values can drop below 0, so they should never be unsigned.
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