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- /*
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #include "libavutil/attributes.h"
- #include "libavutil/cpu.h"
- #include "libavutil/mem.h"
- #include "libavutil/x86/asm.h"
- #include "libavutil/x86/cpu.h"
- #include "libavfilter/vf_idet.h"
- #if HAVE_YASM
- /* declares main callable idet_filter_line_{mmx,mmxext,sse2}() */
- #define FUNC_MAIN_DECL(KIND, SPAN) \
- int ff_idet_filter_line_##KIND(const uint8_t *a, const uint8_t *b, \
- const uint8_t *c, int w); \
- static int idet_filter_line_##KIND(const uint8_t *a, const uint8_t *b, \
- const uint8_t *c, int w) { \
- int sum = 0; \
- const int left_over = w & (SPAN - 1); \
- w -= left_over; \
- if (w > 0) \
- sum += ff_idet_filter_line_##KIND(a, b, c, w); \
- if (left_over > 0) \
- sum += ff_idet_filter_line_c(a + w, b + w, c + w, left_over); \
- return sum; \
- }
- #define FUNC_MAIN_DECL_16bit(KIND, SPAN) \
- int ff_idet_filter_line_16bit_##KIND(const uint16_t *a, const uint16_t *b, \
- const uint16_t *c, int w); \
- static int idet_filter_line_16bit_##KIND(const uint16_t *a, const uint16_t *b, \
- const uint16_t *c, int w) { \
- int sum = 0; \
- const int left_over = w & (SPAN - 1); \
- w -= left_over; \
- if (w > 0) \
- sum += ff_idet_filter_line_16bit_##KIND(a, b, c, w); \
- if (left_over > 0) \
- sum += ff_idet_filter_line_c_16bit(a + w, b + w, c + w, left_over); \
- return sum; \
- }
- FUNC_MAIN_DECL(sse2, 16)
- FUNC_MAIN_DECL_16bit(sse2, 8)
- #if ARCH_X86_32
- FUNC_MAIN_DECL(mmx, 8)
- FUNC_MAIN_DECL(mmxext, 8)
- FUNC_MAIN_DECL_16bit(mmx, 4)
- #endif
- #endif
- av_cold void ff_idet_init_x86(IDETContext *idet, int for_16b)
- {
- #if HAVE_YASM
- const int cpu_flags = av_get_cpu_flags();
- #if ARCH_X86_32
- if (EXTERNAL_MMX(cpu_flags)) {
- idet->filter_line = for_16b ? (ff_idet_filter_func)idet_filter_line_16bit_mmx : idet_filter_line_mmx;
- }
- if (EXTERNAL_MMXEXT(cpu_flags)) {
- idet->filter_line = for_16b ? (ff_idet_filter_func)idet_filter_line_16bit_mmx : idet_filter_line_mmxext;
- }
- #endif // ARCH_x86_32
- if (EXTERNAL_SSE2(cpu_flags)) {
- idet->filter_line = for_16b ? (ff_idet_filter_func)idet_filter_line_16bit_sse2 : idet_filter_line_sse2;
- }
- #endif // HAVE_YASM
- }
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