diff options
Diffstat (limited to 'libavfilter/x86/vf_idet_init.c')
| -rw-r--r-- | libavfilter/x86/vf_idet_init.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/libavfilter/x86/vf_idet_init.c b/libavfilter/x86/vf_idet_init.c new file mode 100644 index 0000000..1147ca8 --- /dev/null +++ b/libavfilter/x86/vf_idet_init.c @@ -0,0 +1,87 @@ +/* + * 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 +} |
