iSold Leo ec2a4105e2 swscale: avoid overflow in fast bilinear edge handling ...

The final edge clamp computes the source position using int
multiplication before shifting. With sufficiently wide inputs this
overflows, which may suppress the clamp and leave the last output
pixels interpolated with the padding byte.

Promote the multiplication to int64_t in the C, MMXEXT and VSX
implementations.

Add a regression test covering the rightmost pixel of a wide upscale,
which is wrong before this change on both the C and the MMXEXT path.

Fixes: signed integer overflow: 15 * 255918080 cannot be represented in type 'int'
Fixes: #21591
Signed-off-by: iSold Leo <s@qwqlog.com>

2026-08-05 19:34:30 +00:00

..

emms.asm

avutil/x86/emms: Unavpriv avpriv_emms_asm()

2026-06-23 19:15:57 +02:00

hscale_fast_bilinear_simd.c

swscale: avoid overflow in fast bilinear edge handling

2026-08-05 19:34:30 +00:00

input.asm

swscale/x86/input: don't overread input in RGB24_TO_UV_FN

2026-03-06 23:13:45 -03:00

Makefile

swscale/x86: use HOSTCPPFLAGS instead of CPPFLAGS for native code

2026-08-05 11:06:22 +00:00

ops_common.asm

swscale/x86/ops: add AVX512 vpermb packed shuffle path

2026-07-17 13:23:21 +00:00

ops_float.asm

swscale/x86/ops: add missing non-FMA SWS_UOP_LINEAR fallback

2026-07-14 12:24:01 +00:00

ops_include.asm

swscale/ops_dispatch: generalize block_size_in/out to array

2026-06-11 16:27:47 +00:00

ops_int.asm

swscale/uops: consolidate SWS_UOP_{PERMUTE,COPY,MOVE}

2026-07-14 12:24:01 +00:00

ops.c

swscale/x86/ops: add AVX512 vpermb packed shuffle path

2026-07-17 13:23:21 +00:00

output.asm

swscale/x86/output: Remove obsolete MMXEXT function

2026-04-13 08:46:44 +02:00

range_convert.asm

swscale/x86: add sse4 and avx2 {lum,chr}ConvertRange16

2024-12-05 21:10:29 +01:00

rgb2rgb.c

avutil/x86/asm: Remove HAVE_[67]REGS, use HAVE_X86_[67]REGS directly

2026-07-22 14:52:57 +02:00

rgb_2_rgb.asm

swscale/x86/rgb_2_rgb: fix uyvytoyuv422 overwrite on odd width

2026-06-17 02:40:59 +02:00

scale_avx2.asm

swscale: rename SwsContext to SwsInternal

2024-10-24 22:50:00 +02:00

scale.asm

swscale/x86/scale: Remove always-false mmsize checks

2026-04-13 08:46:44 +02:00

swscale_template.c

avutil/x86/asm: Remove HAVE_[67]REGS, use HAVE_X86_[67]REGS directly

2026-07-22 14:52:57 +02:00

swscale.c

avutil/x86/asm: Remove HAVE_[67]REGS, use HAVE_X86_[67]REGS directly

2026-07-22 14:52:57 +02:00

uops_macros.asm.h

swscale/x86/ops: rewrite packed_shuffle() in terms of uops macro

2026-07-17 13:23:21 +00:00

w64xmmtest.c

swscale: rename SwsContext to SwsInternal

2024-10-24 22:50:00 +02:00

yuv2rgb.c

swscale/x86/yuv2rgb: fix planar GBRP boundary check in ssse3 assembly

2026-06-02 23:42:01 +00:00

yuv2yuvX.asm

swscale/x86/yuv2yuvX: Simplify rotating

2026-04-26 23:48:21 +02:00

yuv_2_rgb.asm

swscale/x86/yuv2rgb: add ssse3 yuv42{0,2}p -> gbrp unscaled colorspace converters

2024-08-18 22:26:14 +02:00