73 lines
3.3 KiB
C
73 lines
3.3 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
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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/asm.h"
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#include "libavutil/x86/cpu.h"
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#include "libavfilter/vf_idet.h"
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#if HAVE_X86ASM
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/* declares main callable idet_filter_line_sse2() */
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#define FUNC_MAIN_DECL(KIND, SPAN) \
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int ff_idet_filter_line_##KIND(const uint8_t *a, const uint8_t *b, \
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const uint8_t *c, int w); \
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static int idet_filter_line_##KIND(const uint8_t *a, const uint8_t *b, \
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const uint8_t *c, int w) { \
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int sum = 0; \
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const int left_over = w & (SPAN - 1); \
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w -= left_over; \
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if (w > 0) \
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sum += ff_idet_filter_line_##KIND(a, b, c, w); \
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if (left_over > 0) \
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sum += ff_idet_filter_line_c(a + w, b + w, c + w, left_over); \
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return sum; \
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}
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#define FUNC_MAIN_DECL_16bit(KIND, SPAN) \
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int ff_idet_filter_line_16bit_##KIND(const uint16_t *a, const uint16_t *b, \
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const uint16_t *c, int w); \
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static int idet_filter_line_16bit_##KIND(const uint16_t *a, const uint16_t *b, \
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const uint16_t *c, int w) { \
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int sum = 0; \
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const int left_over = w & (SPAN - 1); \
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w -= left_over; \
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if (w > 0) \
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sum += ff_idet_filter_line_16bit_##KIND(a, b, c, w); \
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if (left_over > 0) \
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sum += ff_idet_filter_line_c_16bit(a + w, b + w, c + w, left_over); \
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return sum; \
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}
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FUNC_MAIN_DECL(sse2, 16)
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FUNC_MAIN_DECL_16bit(sse2, 8)
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#endif
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av_cold void ff_idet_init_x86(IDETContext *idet, int for_16b)
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{
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#if HAVE_X86ASM
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const int cpu_flags = av_get_cpu_flags();
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if (EXTERNAL_SSE2(cpu_flags)) {
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idet->filter_line = for_16b ? (ff_idet_filter_func)idet_filter_line_16bit_sse2 : idet_filter_line_sse2;
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}
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#endif // HAVE_X86ASM
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}
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