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author | Michael Niedermayer <michaelni@gmx.at> | 2012-12-21 17:18:43 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2012-12-21 17:18:43 +0100 |
commit | a41bf09d9c56215448f14fb086c9f882eb41ecac (patch) | |
tree | 541da01619d95763ff0ee46ae0df50125505b3c4 /libavcodec/x86/videodsp_init.c | |
parent | fb3f28ee289b9ea5106d5a7fa00a1018eb379e65 (diff) | |
parent | 6906b19346ae8a330bfaa1c16ce535be10789723 (diff) | |
download | ffmpeg-a41bf09d9c56215448f14fb086c9f882eb41ecac.tar.gz |
Merge commit '6906b19346ae8a330bfaa1c16ce535be10789723'
* commit '6906b19346ae8a330bfaa1c16ce535be10789723':
lavc: add missing files for arm
lavc: introduce VideoDSPContext
Conflicts:
configure
libavcodec/arm/dsputil_init_armv5te.c
libavcodec/dsputil.c
libavcodec/dsputil.h
libavcodec/dsputil_template.c
libavcodec/h264.c
libavcodec/mpegvideo.h
libavcodec/mpegvideo_enc.c
libavcodec/x86/dsputil_mmx.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/x86/videodsp_init.c')
-rw-r--r-- | libavcodec/x86/videodsp_init.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/libavcodec/x86/videodsp_init.c b/libavcodec/x86/videodsp_init.c new file mode 100644 index 0000000000..77f43a6a44 --- /dev/null +++ b/libavcodec/x86/videodsp_init.c @@ -0,0 +1,126 @@ +/* + * Copyright (C) 2012 Ronald S. Bultje + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" +#include "libavutil/avassert.h" +#include "libavutil/common.h" +#include "libavutil/cpu.h" +#include "libavutil/mem.h" +#include "libavutil/x86/asm.h" +#include "libavcodec/videodsp.h" + +#if HAVE_YASM +typedef void emu_edge_core_func(uint8_t *buf, const uint8_t *src, + x86_reg linesize, x86_reg start_y, + x86_reg end_y, x86_reg block_h, + x86_reg start_x, x86_reg end_x, + x86_reg block_w); +extern emu_edge_core_func ff_emu_edge_core_mmx; +extern emu_edge_core_func ff_emu_edge_core_sse; + +static av_always_inline void emulated_edge_mc(uint8_t *buf, const uint8_t *src, + ptrdiff_t linesize_arg, + int block_w, int block_h, + int src_x, int src_y, + int w, int h, + emu_edge_core_func *core_fn) +{ + int start_y, start_x, end_y, end_x, src_y_add = 0; + int linesize = linesize_arg; + + if(!w || !h) + return; + + if (src_y >= h) { + src -= src_y*linesize; + src_y_add = h - 1; + src_y = h - 1; + } else if (src_y <= -block_h) { + src -= src_y*linesize; + src_y_add = 1 - block_h; + src_y = 1 - block_h; + } + if (src_x >= w) { + src += w - 1 - src_x; + src_x = w - 1; + } else if (src_x <= -block_w) { + src += 1 - block_w - src_x; + src_x = 1 - block_w; + } + + start_y = FFMAX(0, -src_y); + start_x = FFMAX(0, -src_x); + end_y = FFMIN(block_h, h-src_y); + end_x = FFMIN(block_w, w-src_x); + av_assert2(start_x < end_x && block_w > 0); + av_assert2(start_y < end_y && block_h > 0); + + // fill in the to-be-copied part plus all above/below + src += (src_y_add + start_y) * linesize + start_x; + buf += start_x; + core_fn(buf, src, linesize, start_y, end_y, + block_h, start_x, end_x, block_w); +} + +#if ARCH_X86_32 +static av_noinline void emulated_edge_mc_mmx(uint8_t *buf, const uint8_t *src, + ptrdiff_t linesize, + int block_w, int block_h, + int src_x, int src_y, int w, int h) +{ + emulated_edge_mc(buf, src, linesize, block_w, block_h, src_x, src_y, + w, h, &ff_emu_edge_core_mmx); +} +#endif + +static av_noinline void emulated_edge_mc_sse(uint8_t *buf, const uint8_t *src, + ptrdiff_t linesize, + int block_w, int block_h, + int src_x, int src_y, int w, int h) +{ + emulated_edge_mc(buf, src, linesize, block_w, block_h, src_x, src_y, + w, h, &ff_emu_edge_core_sse); +} +#endif /* HAVE_YASM */ + +void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h); +void ff_prefetch_3dnow(uint8_t *buf, ptrdiff_t stride, int h); + +void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc) +{ +#if HAVE_YASM + int mm_flags = av_get_cpu_flags(); + +#if ARCH_X86_32 + if (bpc <= 8 && mm_flags & AV_CPU_FLAG_MMX) { + ctx->emulated_edge_mc = emulated_edge_mc_mmx; + } + if (mm_flags & AV_CPU_FLAG_3DNOW) { + ctx->prefetch = ff_prefetch_3dnow; + } +#endif /* ARCH_X86_32 */ + if (mm_flags & AV_CPU_FLAG_MMXEXT) { + ctx->prefetch = ff_prefetch_mmxext; + } + if (bpc <= 8 && mm_flags & AV_CPU_FLAG_SSE) { + ctx->emulated_edge_mc = emulated_edge_mc_sse; + } +#endif /* HAVE_YASM */ +} |