| /* |
| * The simplest mpeg encoder (well, it was the simplest!) |
| * Copyright (c) 2000,2001 Fabrice Bellard |
| * |
| * 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/x86/asm.h" |
| #include "libavutil/x86/cpu.h" |
| #include "libavcodec/avcodec.h" |
| #include "libavcodec/dct.h" |
| #include "libavcodec/mpegvideo.h" |
| |
| /* not permutated inverse zigzag_direct + 1 for MMX quantizer */ |
| DECLARE_ALIGNED(16, static const uint16_t, inv_zigzag_direct16)[64] = { |
| 1, 2, 6, 7, 15, 16, 28, 29, |
| 3, 5, 8, 14, 17, 27, 30, 43, |
| 4, 9, 13, 18, 26, 31, 42, 44, |
| 10, 12, 19, 25, 32, 41, 45, 54, |
| 11, 20, 24, 33, 40, 46, 53, 55, |
| 21, 23, 34, 39, 47, 52, 56, 61, |
| 22, 35, 38, 48, 51, 57, 60, 62, |
| 36, 37, 49, 50, 58, 59, 63, 64, |
| }; |
| |
| #if HAVE_6REGS |
| |
| #if HAVE_MMX_INLINE |
| #define COMPILE_TEMPLATE_MMXEXT 0 |
| #define COMPILE_TEMPLATE_SSE2 0 |
| #define COMPILE_TEMPLATE_SSSE3 0 |
| #define RENAME(a) a ## _mmx |
| #define RENAME_FDCT(a) a ## _mmx |
| #include "mpegvideoenc_template.c" |
| #endif /* HAVE_MMX_INLINE */ |
| |
| #if HAVE_MMXEXT_INLINE |
| #undef COMPILE_TEMPLATE_SSSE3 |
| #undef COMPILE_TEMPLATE_SSE2 |
| #undef COMPILE_TEMPLATE_MMXEXT |
| #define COMPILE_TEMPLATE_MMXEXT 1 |
| #define COMPILE_TEMPLATE_SSE2 0 |
| #define COMPILE_TEMPLATE_SSSE3 0 |
| #undef RENAME |
| #undef RENAME_FDCT |
| #define RENAME(a) a ## _mmxext |
| #define RENAME_FDCT(a) a ## _mmxext |
| #include "mpegvideoenc_template.c" |
| #endif /* HAVE_MMXEXT_INLINE */ |
| |
| #if HAVE_SSE2_INLINE |
| #undef COMPILE_TEMPLATE_MMXEXT |
| #undef COMPILE_TEMPLATE_SSE2 |
| #undef COMPILE_TEMPLATE_SSSE3 |
| #define COMPILE_TEMPLATE_MMXEXT 0 |
| #define COMPILE_TEMPLATE_SSE2 1 |
| #define COMPILE_TEMPLATE_SSSE3 0 |
| #undef RENAME |
| #undef RENAME_FDCT |
| #define RENAME(a) a ## _sse2 |
| #define RENAME_FDCT(a) a ## _sse2 |
| #include "mpegvideoenc_template.c" |
| #endif /* HAVE_SSE2_INLINE */ |
| |
| #if HAVE_SSSE3_INLINE |
| #undef COMPILE_TEMPLATE_MMXEXT |
| #undef COMPILE_TEMPLATE_SSE2 |
| #undef COMPILE_TEMPLATE_SSSE3 |
| #define COMPILE_TEMPLATE_MMXEXT 0 |
| #define COMPILE_TEMPLATE_SSE2 1 |
| #define COMPILE_TEMPLATE_SSSE3 1 |
| #undef RENAME |
| #undef RENAME_FDCT |
| #define RENAME(a) a ## _ssse3 |
| #define RENAME_FDCT(a) a ## _sse2 |
| #include "mpegvideoenc_template.c" |
| #endif /* HAVE_SSSE3_INLINE */ |
| |
| #endif /* HAVE_6REGS */ |
| |
| #if HAVE_INLINE_ASM |
| #if HAVE_MMX_INLINE |
| static void denoise_dct_mmx(MpegEncContext *s, int16_t *block){ |
| const int intra= s->mb_intra; |
| int *sum= s->dct_error_sum[intra]; |
| uint16_t *offset= s->dct_offset[intra]; |
| |
| s->dct_count[intra]++; |
| |
| __asm__ volatile( |
| "pxor %%mm7, %%mm7 \n\t" |
| "1: \n\t" |
| "pxor %%mm0, %%mm0 \n\t" |
| "pxor %%mm1, %%mm1 \n\t" |
| "movq (%0), %%mm2 \n\t" |
| "movq 8(%0), %%mm3 \n\t" |
| "pcmpgtw %%mm2, %%mm0 \n\t" |
| "pcmpgtw %%mm3, %%mm1 \n\t" |
| "pxor %%mm0, %%mm2 \n\t" |
| "pxor %%mm1, %%mm3 \n\t" |
| "psubw %%mm0, %%mm2 \n\t" |
| "psubw %%mm1, %%mm3 \n\t" |
| "movq %%mm2, %%mm4 \n\t" |
| "movq %%mm3, %%mm5 \n\t" |
| "psubusw (%2), %%mm2 \n\t" |
| "psubusw 8(%2), %%mm3 \n\t" |
| "pxor %%mm0, %%mm2 \n\t" |
| "pxor %%mm1, %%mm3 \n\t" |
| "psubw %%mm0, %%mm2 \n\t" |
| "psubw %%mm1, %%mm3 \n\t" |
| "movq %%mm2, (%0) \n\t" |
| "movq %%mm3, 8(%0) \n\t" |
| "movq %%mm4, %%mm2 \n\t" |
| "movq %%mm5, %%mm3 \n\t" |
| "punpcklwd %%mm7, %%mm4 \n\t" |
| "punpckhwd %%mm7, %%mm2 \n\t" |
| "punpcklwd %%mm7, %%mm5 \n\t" |
| "punpckhwd %%mm7, %%mm3 \n\t" |
| "paddd (%1), %%mm4 \n\t" |
| "paddd 8(%1), %%mm2 \n\t" |
| "paddd 16(%1), %%mm5 \n\t" |
| "paddd 24(%1), %%mm3 \n\t" |
| "movq %%mm4, (%1) \n\t" |
| "movq %%mm2, 8(%1) \n\t" |
| "movq %%mm5, 16(%1) \n\t" |
| "movq %%mm3, 24(%1) \n\t" |
| "add $16, %0 \n\t" |
| "add $32, %1 \n\t" |
| "add $16, %2 \n\t" |
| "cmp %3, %0 \n\t" |
| " jb 1b \n\t" |
| : "+r" (block), "+r" (sum), "+r" (offset) |
| : "r"(block+64) |
| ); |
| } |
| #endif /* HAVE_MMX_INLINE */ |
| |
| #if HAVE_SSE2_INLINE |
| static void denoise_dct_sse2(MpegEncContext *s, int16_t *block){ |
| const int intra= s->mb_intra; |
| int *sum= s->dct_error_sum[intra]; |
| uint16_t *offset= s->dct_offset[intra]; |
| |
| s->dct_count[intra]++; |
| |
| __asm__ volatile( |
| "pxor %%xmm7, %%xmm7 \n\t" |
| "1: \n\t" |
| "pxor %%xmm0, %%xmm0 \n\t" |
| "pxor %%xmm1, %%xmm1 \n\t" |
| "movdqa (%0), %%xmm2 \n\t" |
| "movdqa 16(%0), %%xmm3 \n\t" |
| "pcmpgtw %%xmm2, %%xmm0 \n\t" |
| "pcmpgtw %%xmm3, %%xmm1 \n\t" |
| "pxor %%xmm0, %%xmm2 \n\t" |
| "pxor %%xmm1, %%xmm3 \n\t" |
| "psubw %%xmm0, %%xmm2 \n\t" |
| "psubw %%xmm1, %%xmm3 \n\t" |
| "movdqa %%xmm2, %%xmm4 \n\t" |
| "movdqa %%xmm3, %%xmm5 \n\t" |
| "psubusw (%2), %%xmm2 \n\t" |
| "psubusw 16(%2), %%xmm3 \n\t" |
| "pxor %%xmm0, %%xmm2 \n\t" |
| "pxor %%xmm1, %%xmm3 \n\t" |
| "psubw %%xmm0, %%xmm2 \n\t" |
| "psubw %%xmm1, %%xmm3 \n\t" |
| "movdqa %%xmm2, (%0) \n\t" |
| "movdqa %%xmm3, 16(%0) \n\t" |
| "movdqa %%xmm4, %%xmm6 \n\t" |
| "movdqa %%xmm5, %%xmm0 \n\t" |
| "punpcklwd %%xmm7, %%xmm4 \n\t" |
| "punpckhwd %%xmm7, %%xmm6 \n\t" |
| "punpcklwd %%xmm7, %%xmm5 \n\t" |
| "punpckhwd %%xmm7, %%xmm0 \n\t" |
| "paddd (%1), %%xmm4 \n\t" |
| "paddd 16(%1), %%xmm6 \n\t" |
| "paddd 32(%1), %%xmm5 \n\t" |
| "paddd 48(%1), %%xmm0 \n\t" |
| "movdqa %%xmm4, (%1) \n\t" |
| "movdqa %%xmm6, 16(%1) \n\t" |
| "movdqa %%xmm5, 32(%1) \n\t" |
| "movdqa %%xmm0, 48(%1) \n\t" |
| "add $32, %0 \n\t" |
| "add $64, %1 \n\t" |
| "add $32, %2 \n\t" |
| "cmp %3, %0 \n\t" |
| " jb 1b \n\t" |
| : "+r" (block), "+r" (sum), "+r" (offset) |
| : "r"(block+64) |
| XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3", |
| "%xmm4", "%xmm5", "%xmm6", "%xmm7") |
| ); |
| } |
| #endif /* HAVE_SSE2_INLINE */ |
| #endif /* HAVE_INLINE_ASM */ |
| |
| av_cold void ff_dct_encode_init_x86(MpegEncContext *s) |
| { |
| const int dct_algo = s->avctx->dct_algo; |
| |
| if (dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX) { |
| #if HAVE_MMX_INLINE |
| int cpu_flags = av_get_cpu_flags(); |
| if (INLINE_MMX(cpu_flags)) { |
| #if HAVE_6REGS |
| s->dct_quantize = dct_quantize_mmx; |
| #endif |
| s->denoise_dct = denoise_dct_mmx; |
| } |
| #endif |
| #if HAVE_6REGS && HAVE_MMXEXT_INLINE |
| if (INLINE_MMXEXT(cpu_flags)) |
| s->dct_quantize = dct_quantize_mmxext; |
| #endif |
| #if HAVE_SSE2_INLINE |
| if (INLINE_SSE2(cpu_flags)) { |
| #if HAVE_6REGS |
| s->dct_quantize = dct_quantize_sse2; |
| #endif |
| s->denoise_dct = denoise_dct_sse2; |
| } |
| #endif |
| #if HAVE_6REGS && HAVE_SSSE3_INLINE |
| if (INLINE_SSSE3(cpu_flags)) |
| s->dct_quantize = dct_quantize_ssse3; |
| #endif |
| } |
| } |
