diff options
Diffstat (limited to 'libavcodec/x86/lossless_videodsp_init.c')
| -rw-r--r-- | libavcodec/x86/lossless_videodsp_init.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/libavcodec/x86/lossless_videodsp_init.c b/libavcodec/x86/lossless_videodsp_init.c new file mode 100644 index 0000000..6d71f14 --- /dev/null +++ b/libavcodec/x86/lossless_videodsp_init.c @@ -0,0 +1,128 @@ +/* + * Lossless video DSP utils + * + * 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 "config.h" +#include "libavutil/x86/asm.h" +#include "../lossless_videodsp.h" +#include "libavutil/x86/cpu.h" + +void ff_add_bytes_mmx(uint8_t *dst, uint8_t *src, ptrdiff_t w); +void ff_add_bytes_sse2(uint8_t *dst, uint8_t *src, ptrdiff_t w); +void ff_add_bytes_avx2(uint8_t *dst, uint8_t *src, ptrdiff_t w); + +void ff_add_median_pred_mmxext(uint8_t *dst, const uint8_t *top, + const uint8_t *diff, ptrdiff_t w, + int *left, int *left_top); +void ff_add_median_pred_sse2(uint8_t *dst, const uint8_t *top, + const uint8_t *diff, ptrdiff_t w, + int *left, int *left_top); + +int ff_add_left_pred_ssse3(uint8_t *dst, const uint8_t *src, + ptrdiff_t w, int left); +int ff_add_left_pred_unaligned_ssse3(uint8_t *dst, const uint8_t *src, + ptrdiff_t w, int left); +int ff_add_left_pred_unaligned_avx2(uint8_t *dst, const uint8_t *src, + ptrdiff_t w, int left); + +int ff_add_left_pred_int16_ssse3(uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc); +int ff_add_left_pred_int16_unaligned_ssse3(uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc); + +void ff_add_gradient_pred_ssse3(uint8_t *src, const ptrdiff_t stride, const ptrdiff_t width); +void ff_add_gradient_pred_avx2(uint8_t *src, const ptrdiff_t stride, const ptrdiff_t width); + +#if HAVE_INLINE_ASM && HAVE_7REGS && ARCH_X86_32 +static void add_median_pred_cmov(uint8_t *dst, const uint8_t *top, + const uint8_t *diff, ptrdiff_t w, + int *left, int *left_top) +{ + x86_reg w2 = -w; + x86_reg x; + int l = *left & 0xff; + int tl = *left_top & 0xff; + int t; + __asm__ volatile ( + "mov %7, %3 \n" + "1: \n" + "movzbl (%3, %4), %2 \n" + "mov %2, %k3 \n" + "sub %b1, %b3 \n" + "add %b0, %b3 \n" + "mov %2, %1 \n" + "cmp %0, %2 \n" + "cmovg %0, %2 \n" + "cmovg %1, %0 \n" + "cmp %k3, %0 \n" + "cmovg %k3, %0 \n" + "mov %7, %3 \n" + "cmp %2, %0 \n" + "cmovl %2, %0 \n" + "add (%6, %4), %b0 \n" + "mov %b0, (%5, %4) \n" + "inc %4 \n" + "jl 1b \n" + : "+&q"(l), "+&q"(tl), "=&r"(t), "=&q"(x), "+&r"(w2) + : "r"(dst + w), "r"(diff + w), "rm"(top + w) + ); + *left = l; + *left_top = tl; +} +#endif + +void ff_llviddsp_init_x86(LLVidDSPContext *c) +{ + int cpu_flags = av_get_cpu_flags(); + +#if HAVE_INLINE_ASM && HAVE_7REGS && ARCH_X86_32 + if (cpu_flags & AV_CPU_FLAG_CMOV) + c->add_median_pred = add_median_pred_cmov; +#endif + + if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) { + c->add_bytes = ff_add_bytes_mmx; + } + + if (ARCH_X86_32 && EXTERNAL_MMXEXT(cpu_flags)) { + /* slower than cmov version on AMD */ + if (!(cpu_flags & AV_CPU_FLAG_3DNOW)) + c->add_median_pred = ff_add_median_pred_mmxext; + } + + if (EXTERNAL_SSE2(cpu_flags)) { + c->add_bytes = ff_add_bytes_sse2; + c->add_median_pred = ff_add_median_pred_sse2; + } + + if (EXTERNAL_SSSE3(cpu_flags)) { + c->add_left_pred = ff_add_left_pred_ssse3; + c->add_left_pred_int16 = ff_add_left_pred_int16_ssse3; + c->add_gradient_pred = ff_add_gradient_pred_ssse3; + } + + if (EXTERNAL_SSSE3_FAST(cpu_flags)) { + c->add_left_pred = ff_add_left_pred_unaligned_ssse3; + c->add_left_pred_int16 = ff_add_left_pred_int16_unaligned_ssse3; + } + + if (EXTERNAL_AVX2_FAST(cpu_flags)) { + c->add_bytes = ff_add_bytes_avx2; + c->add_left_pred = ff_add_left_pred_unaligned_avx2; + c->add_gradient_pred = ff_add_gradient_pred_avx2; + } +} |
