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20ddada2a3
Before this commit, the input in get_pixels and get_pixels_unaligned has been treated inconsistenly: - The generic code treated 9, 10, 12 and 14 bits as 16bit input (these bits correspond to what FFmpeg's dsputils supported), everything with <= 8 bits as 8 bit and everything else as 8 bit when used via AVDCT (which exposes these functions and purports to support up to 14 bits). - AARCH64, ARM, PPC and RISC-V, x86 ignore this AVDCT special case. - RISC-V also ignored the restriction to 9, 10, 12 and 14 for its 16bit check and treated everything > 8 bits as 16bit. - The mmi MIPS code treats everything as 8 bit when used via AVDCT (this is certainly broken); otherwise it checks for <= 8 bits. The msa MIPS code behaves like the generic code. This commit changes this to treat 9..16 bits as 16 bit input, everything else as 8 bit (the former because it makes sense, the latter to preserve the behaviour for external users*). *: The only internal user of AVDCT (the spp filter) always uses 8, 9 or 10 bits. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/*
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* SIMD-optimized pixel operations
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/x86/cpu.h"
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#include "libavcodec/pixblockdsp.h"
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void ff_get_pixels_sse2(int16_t *block, const uint8_t *pixels, ptrdiff_t stride);
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void ff_diff_pixels_sse2(int16_t *block, const uint8_t *s1, const uint8_t *s2,
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ptrdiff_t stride);
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av_cold void ff_pixblockdsp_init_x86(PixblockDSPContext *c,
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unsigned high_bit_depth)
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{
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int cpu_flags = av_get_cpu_flags();
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if (EXTERNAL_SSE2(cpu_flags)) {
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if (!high_bit_depth) {
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c->get_pixels_unaligned =
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c->get_pixels = ff_get_pixels_sse2;
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}
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c->diff_pixels_unaligned =
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c->diff_pixels = ff_diff_pixels_sse2;
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}
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}
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