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https://git.ffmpeg.org/ffmpeg.git
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Andreas Rheinhardt
7971953d29
Unfortunately a bit slower than the MMX version due to the impossibility to use memory operands in paddw. The situation would reverse if ff_dctB_mmx() would have to issue emms. dctB_c: 3.7 ( 1.00x) dctB_mmx: 3.3 ( 1.13x) dctB_sse2: 3.6 ( 1.03x) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/*
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <assert.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "checkasm.h"
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#include "libavfilter/vf_pp7dsp.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mem_internal.h"
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#define randomize_buffer(buf) \
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do { \
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static_assert(!(sizeof(buf) % 4), "Tail handling needed"); \
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for (size_t k = 0; k < sizeof(buf); k += 4) { \
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AV_WN32A((char*)buf + k, rnd()); \
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} \
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} while (0)
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static void check_dctB(const PP7DSPContext *const pp7dsp)
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{
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declare_func(void, int16_t *dst, const int16_t *src);
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if (!check_func(pp7dsp->dctB, "dctB"))
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return;
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DECLARE_ALIGNED(8, int16_t, src)[7 * 4];
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DECLARE_ALIGNED(8, int16_t, dst_ref)[6 * 4];
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DECLARE_ALIGNED(8, int16_t, dst_new)[6 * 4];
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randomize_buffer(src);
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randomize_buffer(dst_ref);
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memcpy(dst_new, dst_ref, sizeof(dst_new));
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call_ref(dst_ref, src);
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call_new(dst_new, src);
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if (memcmp(dst_new, dst_ref, sizeof(dst_new)))
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fail();
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bench_new(dst_new, src);
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}
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void checkasm_check_vf_pp7(void)
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{
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PP7DSPContext pp7dsp;
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ff_pp7dsp_init(&pp7dsp);
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check_dctB(&pp7dsp);
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report("dctB");
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}
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