469 lines
14 KiB
NASM
469 lines
14 KiB
NASM
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;******************************************************************************
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;* Core video DSP functions
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;* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION .text
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; slow vertical extension loop function. Works with variable-width, and
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; does per-line reading/writing of source data
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%macro V_COPY_ROW 2 ; type (top/body/bottom), h
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.%1_y_loop: ; do {
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mov wq, r7mp ; initialize w (r7mp = wmp)
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.%1_x_loop: ; do {
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movu m0, [srcq+wq] ; m0 = read($mmsize)
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movu [dstq+wq], m0 ; write(m0, $mmsize)
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add wq, mmsize ; w -= $mmsize
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cmp wq, -mmsize ; } while (w > $mmsize);
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jl .%1_x_loop
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movu m0, [srcq-mmsize] ; m0 = read($mmsize)
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movu [dstq-mmsize], m0 ; write(m0, $mmsize)
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%ifidn %1, body ; if ($type == body) {
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add srcq, src_strideq ; src += src_stride
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%endif ; }
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add dstq, dst_strideq ; dst += dst_stride
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dec %2 ; } while (--$h);
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jnz .%1_y_loop
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%endmacro
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%macro vvar_fn 0
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; .----. <- zero
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; | | <- top is copied from first line in body of source
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; |----| <- start_y
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; | | <- body is copied verbatim (line-by-line) from source
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; |----| <- end_y
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; | | <- bottom is copied from last line in body of source
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; '----' <- bh
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%if ARCH_X86_64
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cglobal emu_edge_vvar, 7, 8, 1, dst, dst_stride, src, src_stride, \
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start_y, end_y, bh, w
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%else ; x86-32
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cglobal emu_edge_vvar, 1, 6, 1, dst, src, start_y, end_y, bh, w
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%define src_strideq r3mp
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%define dst_strideq r1mp
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mov srcq, r2mp
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mov start_yq, r4mp
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mov end_yq, r5mp
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mov bhq, r6mp
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%endif
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sub bhq, end_yq ; bh -= end_q
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sub end_yq, start_yq ; end_q -= start_q
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add srcq, r7mp ; (r7mp = wmp)
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add dstq, r7mp ; (r7mp = wmp)
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neg r7mp ; (r7mp = wmp)
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test start_yq, start_yq ; if (start_q) {
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jz .body
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V_COPY_ROW top, start_yq ; v_copy_row(top, start_yq)
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.body: ; }
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V_COPY_ROW body, end_yq ; v_copy_row(body, end_yq)
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test bhq, bhq ; if (bh) {
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jz .end
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sub srcq, src_strideq ; src -= src_stride
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V_COPY_ROW bottom, bhq ; v_copy_row(bottom, bh)
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.end: ; }
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RET
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%endmacro
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%if ARCH_X86_32
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INIT_MMX mmx
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vvar_fn
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%endif
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INIT_XMM sse
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vvar_fn
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%macro hvar_fn 0
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cglobal emu_edge_hvar, 5, 6, 1, dst, dst_stride, start_x, n_words, h, w
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lea dstq, [dstq+n_wordsq*2]
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neg n_wordsq
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lea start_xq, [start_xq+n_wordsq*2]
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.y_loop: ; do {
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%if cpuflag(avx2)
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vpbroadcastb m0, [dstq+start_xq]
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mov wq, n_wordsq ; initialize w
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%else
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movzx wd, byte [dstq+start_xq] ; w = read(1)
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imul wd, 0x01010101 ; w *= 0x01010101
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movd m0, wd
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mov wq, n_wordsq ; initialize w
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%if cpuflag(sse2)
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pshufd m0, m0, q0000 ; splat
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%else ; mmx
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punpckldq m0, m0 ; splat
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%endif ; mmx/sse
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%endif ; avx2
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.x_loop: ; do {
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movu [dstq+wq*2], m0 ; write($reg, $mmsize)
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add wq, mmsize/2 ; w -= $mmsize/2
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cmp wq, -(mmsize/2) ; } while (w > $mmsize/2)
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jl .x_loop
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movu [dstq-mmsize], m0 ; write($reg, $mmsize)
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add dstq, dst_strideq ; dst += dst_stride
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dec hq ; } while (h--)
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jnz .y_loop
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RET
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%endmacro
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%if ARCH_X86_32
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INIT_MMX mmx
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hvar_fn
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%endif
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INIT_XMM sse2
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hvar_fn
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%if HAVE_AVX2_EXTERNAL
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INIT_XMM avx2
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hvar_fn
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%endif
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; macro to read/write a horizontal number of pixels (%2) to/from registers
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; on sse, - fills xmm0-15 for consecutive sets of 16 pixels
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; - if (%2 & 8) fills 8 bytes into xmm$next
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; - if (%2 & 4) fills 4 bytes into xmm$next
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; - if (%2 & 3) fills 1, 2 or 4 bytes in eax
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; on mmx, - fills mm0-7 for consecutive sets of 8 pixels
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; - if (%2 & 4) fills 4 bytes into mm$next
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; - if (%2 & 3) fills 1, 2 or 4 bytes in eax
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; writing data out is in the same way
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%macro READ_NUM_BYTES 2
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%assign %%off 0 ; offset in source buffer
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%assign %%mmx_idx 0 ; mmx register index
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%assign %%xmm_idx 0 ; xmm register index
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%rep %2/mmsize
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%if mmsize == 16
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movu xmm %+ %%xmm_idx, [srcq+%%off]
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%assign %%xmm_idx %%xmm_idx+1
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%else ; mmx
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movu mm %+ %%mmx_idx, [srcq+%%off]
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%assign %%mmx_idx %%mmx_idx+1
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%endif
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%assign %%off %%off+mmsize
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%endrep ; %2/mmsize
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%if mmsize == 16
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%if (%2-%%off) >= 8
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%if %2 > 16 && (%2-%%off) > 8
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movu xmm %+ %%xmm_idx, [srcq+%2-16]
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%assign %%xmm_idx %%xmm_idx+1
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%assign %%off %2
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%else
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movq mm %+ %%mmx_idx, [srcq+%%off]
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%assign %%mmx_idx %%mmx_idx+1
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%assign %%off %%off+8
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%endif
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%endif ; (%2-%%off) >= 8
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%endif
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%if (%2-%%off) >= 4
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%if %2 > 8 && (%2-%%off) > 4
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movq mm %+ %%mmx_idx, [srcq+%2-8]
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%assign %%off %2
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%else
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movd mm %+ %%mmx_idx, [srcq+%%off]
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%assign %%off %%off+4
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%endif
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%assign %%mmx_idx %%mmx_idx+1
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%endif ; (%2-%%off) >= 4
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%if (%2-%%off) >= 1
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%if %2 >= 4
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movd mm %+ %%mmx_idx, [srcq+%2-4]
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%elif (%2-%%off) == 1
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mov valb, [srcq+%2-1]
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%elif (%2-%%off) == 2
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mov valw, [srcq+%2-2]
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%else
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mov valb, [srcq+%2-1]
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ror vald, 16
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mov valw, [srcq+%2-3]
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%endif
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%endif ; (%2-%%off) >= 1
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%endmacro ; READ_NUM_BYTES
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%macro WRITE_NUM_BYTES 2
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%assign %%off 0 ; offset in destination buffer
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%assign %%mmx_idx 0 ; mmx register index
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%assign %%xmm_idx 0 ; xmm register index
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%rep %2/mmsize
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%if mmsize == 16
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movu [dstq+%%off], xmm %+ %%xmm_idx
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%assign %%xmm_idx %%xmm_idx+1
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%else ; mmx
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movu [dstq+%%off], mm %+ %%mmx_idx
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%assign %%mmx_idx %%mmx_idx+1
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%endif
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%assign %%off %%off+mmsize
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%endrep ; %2/mmsize
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%if mmsize == 16
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%if (%2-%%off) >= 8
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%if %2 > 16 && (%2-%%off) > 8
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movu [dstq+%2-16], xmm %+ %%xmm_idx
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%assign %%xmm_idx %%xmm_idx+1
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%assign %%off %2
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%else
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movq [dstq+%%off], mm %+ %%mmx_idx
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%assign %%mmx_idx %%mmx_idx+1
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%assign %%off %%off+8
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%endif
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%endif ; (%2-%%off) >= 8
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%endif
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%if (%2-%%off) >= 4
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%if %2 > 8 && (%2-%%off) > 4
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movq [dstq+%2-8], mm %+ %%mmx_idx
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%assign %%off %2
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%else
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movd [dstq+%%off], mm %+ %%mmx_idx
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%assign %%off %%off+4
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%endif
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%assign %%mmx_idx %%mmx_idx+1
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%endif ; (%2-%%off) >= 4
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%if (%2-%%off) >= 1
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%if %2 >= 4
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movd [dstq+%2-4], mm %+ %%mmx_idx
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%elif (%2-%%off) == 1
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mov [dstq+%2-1], valb
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%elif (%2-%%off) == 2
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mov [dstq+%2-2], valw
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%else
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mov [dstq+%2-3], valw
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ror vald, 16
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mov [dstq+%2-1], valb
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%ifnidn %1, body
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ror vald, 16
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%endif
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%endif
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%endif ; (%2-%%off) >= 1
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%endmacro ; WRITE_NUM_BYTES
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; vertical top/bottom extend and body copy fast loops
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; these are function pointers to set-width line copy functions, i.e.
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; they read a fixed number of pixels into set registers, and write
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; those out into the destination buffer
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%macro VERTICAL_EXTEND 2
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%assign %%n %1
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%rep 1+%2-%1
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%if %%n <= 3
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%if ARCH_X86_64
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cglobal emu_edge_vfix %+ %%n, 6, 8, 0, dst, dst_stride, src, src_stride, \
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start_y, end_y, val, bh
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mov bhq, r6mp ; r6mp = bhmp
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%else ; x86-32
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cglobal emu_edge_vfix %+ %%n, 0, 6, 0, val, dst, src, start_y, end_y, bh
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mov dstq, r0mp
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mov srcq, r2mp
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mov start_yq, r4mp
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mov end_yq, r5mp
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mov bhq, r6mp
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%define dst_strideq r1mp
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%define src_strideq r3mp
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%endif ; x86-64/32
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%else
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%if ARCH_X86_64
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cglobal emu_edge_vfix %+ %%n, 7, 7, 1, dst, dst_stride, src, src_stride, \
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start_y, end_y, bh
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%else ; x86-32
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cglobal emu_edge_vfix %+ %%n, 1, 5, 1, dst, src, start_y, end_y, bh
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mov srcq, r2mp
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mov start_yq, r4mp
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mov end_yq, r5mp
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mov bhq, r6mp
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%define dst_strideq r1mp
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%define src_strideq r3mp
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%endif ; x86-64/32
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%endif
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; FIXME move this to c wrapper?
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sub bhq, end_yq ; bh -= end_y
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sub end_yq, start_yq ; end_y -= start_y
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; extend pixels above body
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test start_yq, start_yq ; if (start_y) {
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jz .body_loop
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READ_NUM_BYTES top, %%n ; $variable_regs = read($n)
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.top_loop: ; do {
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WRITE_NUM_BYTES top, %%n ; write($variable_regs, $n)
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add dstq, dst_strideq ; dst += linesize
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dec start_yq ; } while (--start_y)
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jnz .top_loop ; }
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; copy body pixels
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.body_loop: ; do {
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READ_NUM_BYTES body, %%n ; $variable_regs = read($n)
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WRITE_NUM_BYTES body, %%n ; write($variable_regs, $n)
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add dstq, dst_strideq ; dst += dst_stride
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add srcq, src_strideq ; src += src_stride
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dec end_yq ; } while (--end_y)
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jnz .body_loop
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; copy bottom pixels
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test bhq, bhq ; if (block_h) {
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jz .end
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sub srcq, src_strideq ; src -= linesize
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READ_NUM_BYTES bottom, %%n ; $variable_regs = read($n)
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.bottom_loop: ; do {
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WRITE_NUM_BYTES bottom, %%n ; write($variable_regs, $n)
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add dstq, dst_strideq ; dst += linesize
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dec bhq ; } while (--bh)
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jnz .bottom_loop ; }
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.end:
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RET
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%assign %%n %%n+1
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%endrep ; 1+%2-%1
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%endmacro ; VERTICAL_EXTEND
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INIT_MMX mmx
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VERTICAL_EXTEND 1, 15
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%if ARCH_X86_32
|
||
|
|
VERTICAL_EXTEND 16, 22
|
||
|
|
%endif
|
||
|
|
|
||
|
|
INIT_XMM sse
|
||
|
|
VERTICAL_EXTEND 16, 22
|
||
|
|
|
||
|
|
; left/right (horizontal) fast extend functions
|
||
|
|
; these are essentially identical to the vertical extend ones above,
|
||
|
|
; just left/right separated because number of pixels to extend is
|
||
|
|
; obviously not the same on both sides.
|
||
|
|
|
||
|
|
%macro READ_V_PIXEL 2
|
||
|
|
%if cpuflag(avx2)
|
||
|
|
vpbroadcastb m0, %2
|
||
|
|
%else
|
||
|
|
movzx vald, byte %2
|
||
|
|
imul vald, 0x01010101
|
||
|
|
%if %1 >= 8
|
||
|
|
movd m0, vald
|
||
|
|
%if mmsize == 16
|
||
|
|
pshufd m0, m0, q0000
|
||
|
|
%else
|
||
|
|
punpckldq m0, m0
|
||
|
|
%endif ; mmsize == 16
|
||
|
|
%endif ; %1 > 16
|
||
|
|
%endif ; avx2
|
||
|
|
%endmacro ; READ_V_PIXEL
|
||
|
|
|
||
|
|
%macro WRITE_V_PIXEL 2
|
||
|
|
%assign %%off 0
|
||
|
|
|
||
|
|
%if %1 >= 8
|
||
|
|
|
||
|
|
%rep %1/mmsize
|
||
|
|
movu [%2+%%off], m0
|
||
|
|
%assign %%off %%off+mmsize
|
||
|
|
%endrep ; %1/mmsize
|
||
|
|
|
||
|
|
%if mmsize == 16
|
||
|
|
%if %1-%%off >= 8
|
||
|
|
%if %1 > 16 && %1-%%off > 8
|
||
|
|
movu [%2+%1-16], m0
|
||
|
|
%assign %%off %1
|
||
|
|
%else
|
||
|
|
movq [%2+%%off], m0
|
||
|
|
%assign %%off %%off+8
|
||
|
|
%endif
|
||
|
|
%endif ; %1-%%off >= 8
|
||
|
|
%endif ; mmsize == 16
|
||
|
|
|
||
|
|
%if %1-%%off >= 4
|
||
|
|
%if %1 > 8 && %1-%%off > 4
|
||
|
|
movq [%2+%1-8], m0
|
||
|
|
%assign %%off %1
|
||
|
|
%else
|
||
|
|
movd [%2+%%off], m0
|
||
|
|
%assign %%off %%off+4
|
||
|
|
%endif
|
||
|
|
%endif ; %1-%%off >= 4
|
||
|
|
|
||
|
|
%else ; %1 < 8
|
||
|
|
|
||
|
|
%rep %1/4
|
||
|
|
mov [%2+%%off], vald
|
||
|
|
%assign %%off %%off+4
|
||
|
|
%endrep ; %1/4
|
||
|
|
|
||
|
|
%endif ; %1 >=/< 8
|
||
|
|
|
||
|
|
%if %1-%%off == 2
|
||
|
|
%if cpuflag(avx2)
|
||
|
|
movd [%2+%%off-2], m0
|
||
|
|
%else
|
||
|
|
mov [%2+%%off], valw
|
||
|
|
%endif ; avx2
|
||
|
|
%endif ; (%1-%%off)/2
|
||
|
|
%endmacro ; WRITE_V_PIXEL
|
||
|
|
|
||
|
|
%macro H_EXTEND 2
|
||
|
|
%assign %%n %1
|
||
|
|
%rep 1+(%2-%1)/2
|
||
|
|
%if cpuflag(avx2)
|
||
|
|
cglobal emu_edge_hfix %+ %%n, 4, 4, 1, dst, dst_stride, start_x, bh
|
||
|
|
%else
|
||
|
|
cglobal emu_edge_hfix %+ %%n, 4, 5, 1, dst, dst_stride, start_x, bh, val
|
||
|
|
%endif
|
||
|
|
.loop_y: ; do {
|
||
|
|
READ_V_PIXEL %%n, [dstq+start_xq] ; $variable_regs = read($n)
|
||
|
|
WRITE_V_PIXEL %%n, dstq ; write($variable_regs, $n)
|
||
|
|
add dstq, dst_strideq ; dst += dst_stride
|
||
|
|
dec bhq ; } while (--bh)
|
||
|
|
jnz .loop_y
|
||
|
|
RET
|
||
|
|
%assign %%n %%n+2
|
||
|
|
%endrep ; 1+(%2-%1)/2
|
||
|
|
%endmacro ; H_EXTEND
|
||
|
|
|
||
|
|
INIT_MMX mmx
|
||
|
|
H_EXTEND 2, 14
|
||
|
|
%if ARCH_X86_32
|
||
|
|
H_EXTEND 16, 22
|
||
|
|
%endif
|
||
|
|
|
||
|
|
INIT_XMM sse2
|
||
|
|
H_EXTEND 16, 22
|
||
|
|
|
||
|
|
%if HAVE_AVX2_EXTERNAL
|
||
|
|
INIT_XMM avx2
|
||
|
|
H_EXTEND 8, 22
|
||
|
|
%endif
|
||
|
|
|
||
|
|
%macro PREFETCH_FN 1
|
||
|
|
cglobal prefetch, 3, 3, 0, buf, stride, h
|
||
|
|
.loop:
|
||
|
|
%1 [bufq]
|
||
|
|
add bufq, strideq
|
||
|
|
dec hd
|
||
|
|
jg .loop
|
||
|
|
REP_RET
|
||
|
|
%endmacro
|
||
|
|
|
||
|
|
INIT_MMX mmxext
|
||
|
|
PREFETCH_FN prefetcht0
|
||
|
|
%if ARCH_X86_32
|
||
|
|
INIT_MMX 3dnow
|
||
|
|
PREFETCH_FN prefetch
|
||
|
|
%endif
|