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-rw-r--r--media/ffvpx/libavcodec/x86/videodsp.asm436
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diff --git a/media/ffvpx/libavcodec/x86/videodsp.asm b/media/ffvpx/libavcodec/x86/videodsp.asm
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+;******************************************************************************
+;* Core video DSP functions
+;* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
+;*
+;* 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/x86/x86util.asm"
+
+SECTION .text
+
+; slow vertical extension loop function. Works with variable-width, and
+; does per-line reading/writing of source data
+
+%macro V_COPY_ROW 2 ; type (top/body/bottom), h
+.%1_y_loop: ; do {
+ mov wq, r7mp ; initialize w (r7mp = wmp)
+.%1_x_loop: ; do {
+ movu m0, [srcq+wq] ; m0 = read($mmsize)
+ movu [dstq+wq], m0 ; write(m0, $mmsize)
+ add wq, mmsize ; w -= $mmsize
+ cmp wq, -mmsize ; } while (w > $mmsize);
+ jl .%1_x_loop
+ movu m0, [srcq-mmsize] ; m0 = read($mmsize)
+ movu [dstq-mmsize], m0 ; write(m0, $mmsize)
+%ifidn %1, body ; if ($type == body) {
+ add srcq, src_strideq ; src += src_stride
+%endif ; }
+ add dstq, dst_strideq ; dst += dst_stride
+ dec %2 ; } while (--$h);
+ jnz .%1_y_loop
+%endmacro
+
+; .----. <- zero
+; | | <- top is copied from first line in body of source
+; |----| <- start_y
+; | | <- body is copied verbatim (line-by-line) from source
+; |----| <- end_y
+; | | <- bottom is copied from last line in body of source
+; '----' <- bh
+INIT_XMM sse
+%if ARCH_X86_64
+cglobal emu_edge_vvar, 7, 8, 1, dst, dst_stride, src, src_stride, \
+ start_y, end_y, bh, w
+%else ; x86-32
+cglobal emu_edge_vvar, 1, 6, 1, dst, src, start_y, end_y, bh, w
+%define src_strideq r3mp
+%define dst_strideq r1mp
+ mov srcq, r2mp
+ mov start_yq, r4mp
+ mov end_yq, r5mp
+ mov bhq, r6mp
+%endif
+ sub bhq, end_yq ; bh -= end_q
+ sub end_yq, start_yq ; end_q -= start_q
+ add srcq, r7mp ; (r7mp = wmp)
+ add dstq, r7mp ; (r7mp = wmp)
+ neg r7mp ; (r7mp = wmp)
+ test start_yq, start_yq ; if (start_q) {
+ jz .body
+ V_COPY_ROW top, start_yq ; v_copy_row(top, start_yq)
+.body: ; }
+ V_COPY_ROW body, end_yq ; v_copy_row(body, end_yq)
+ test bhq, bhq ; if (bh) {
+ jz .end
+ sub srcq, src_strideq ; src -= src_stride
+ V_COPY_ROW bottom, bhq ; v_copy_row(bottom, bh)
+.end: ; }
+ RET
+
+%macro hvar_fn 0
+cglobal emu_edge_hvar, 5, 6, 1, dst, dst_stride, start_x, n_words, h, w
+ lea dstq, [dstq+n_wordsq*2]
+ neg n_wordsq
+ lea start_xq, [start_xq+n_wordsq*2]
+.y_loop: ; do {
+%if cpuflag(avx2)
+ vpbroadcastb m0, [dstq+start_xq]
+ mov wq, n_wordsq ; initialize w
+%else
+ movzx wd, byte [dstq+start_xq] ; w = read(1)
+ imul wd, 0x01010101 ; w *= 0x01010101
+ movd m0, wd
+ mov wq, n_wordsq ; initialize w
+ pshufd m0, m0, q0000 ; splat
+%endif ; avx2
+.x_loop: ; do {
+ movu [dstq+wq*2], m0 ; write($reg, $mmsize)
+ add wq, mmsize/2 ; w -= $mmsize/2
+ cmp wq, -(mmsize/2) ; } while (w > $mmsize/2)
+ jl .x_loop
+ movu [dstq-mmsize], m0 ; write($reg, $mmsize)
+ add dstq, dst_strideq ; dst += dst_stride
+ dec hq ; } while (h--)
+ jnz .y_loop
+ RET
+%endmacro
+
+INIT_XMM sse2
+hvar_fn
+
+%if HAVE_AVX2_EXTERNAL
+INIT_XMM avx2
+hvar_fn
+%endif
+
+; macro to read/write a horizontal number of pixels (%2) to/from registers
+; on sse, - fills xmm0-15 for consecutive sets of 16 pixels
+; - if (%2 & 8) fills 8 bytes into xmm$next
+; - if (%2 & 4) fills 4 bytes into xmm$next
+; - if (%2 & 3) fills 1, 2 or 4 bytes in eax
+; on mmx, - fills mm0-7 for consecutive sets of 8 pixels
+; - if (%2 & 4) fills 4 bytes into mm$next
+; - if (%2 & 3) fills 1, 2 or 4 bytes in eax
+; writing data out is in the same way
+%macro READ_NUM_BYTES 2
+%assign %%off 0 ; offset in source buffer
+%assign %%mmx_idx 0 ; mmx register index
+%assign %%xmm_idx 0 ; xmm register index
+
+%rep %2/mmsize
+%if mmsize == 16
+ movu xmm %+ %%xmm_idx, [srcq+%%off]
+%assign %%xmm_idx %%xmm_idx+1
+%else ; mmx
+ movu mm %+ %%mmx_idx, [srcq+%%off]
+%assign %%mmx_idx %%mmx_idx+1
+%endif
+%assign %%off %%off+mmsize
+%endrep ; %2/mmsize
+
+%if mmsize == 16
+%if (%2-%%off) >= 8
+%if %2 > 16 && (%2-%%off) > 8
+ movu xmm %+ %%xmm_idx, [srcq+%2-16]
+%assign %%xmm_idx %%xmm_idx+1
+%assign %%off %2
+%else
+ movq mm %+ %%mmx_idx, [srcq+%%off]
+%assign %%mmx_idx %%mmx_idx+1
+%assign %%off %%off+8
+%endif
+%endif ; (%2-%%off) >= 8
+%endif
+
+%if (%2-%%off) >= 4
+%if %2 > 8 && (%2-%%off) > 4
+ movq mm %+ %%mmx_idx, [srcq+%2-8]
+%assign %%off %2
+%else
+ movd mm %+ %%mmx_idx, [srcq+%%off]
+%assign %%off %%off+4
+%endif
+%assign %%mmx_idx %%mmx_idx+1
+%endif ; (%2-%%off) >= 4
+
+%if (%2-%%off) >= 1
+%if %2 >= 4
+ movd mm %+ %%mmx_idx, [srcq+%2-4]
+%elif (%2-%%off) == 1
+ mov valb, [srcq+%2-1]
+%elif (%2-%%off) == 2
+ mov valw, [srcq+%2-2]
+%else
+ mov valb, [srcq+%2-1]
+ ror vald, 16
+ mov valw, [srcq+%2-3]
+%endif
+%endif ; (%2-%%off) >= 1
+%endmacro ; READ_NUM_BYTES
+
+%macro WRITE_NUM_BYTES 2
+%assign %%off 0 ; offset in destination buffer
+%assign %%mmx_idx 0 ; mmx register index
+%assign %%xmm_idx 0 ; xmm register index
+
+%rep %2/mmsize
+%if mmsize == 16
+ movu [dstq+%%off], xmm %+ %%xmm_idx
+%assign %%xmm_idx %%xmm_idx+1
+%else ; mmx
+ movu [dstq+%%off], mm %+ %%mmx_idx
+%assign %%mmx_idx %%mmx_idx+1
+%endif
+%assign %%off %%off+mmsize
+%endrep ; %2/mmsize
+
+%if mmsize == 16
+%if (%2-%%off) >= 8
+%if %2 > 16 && (%2-%%off) > 8
+ movu [dstq+%2-16], xmm %+ %%xmm_idx
+%assign %%xmm_idx %%xmm_idx+1
+%assign %%off %2
+%else
+ movq [dstq+%%off], mm %+ %%mmx_idx
+%assign %%mmx_idx %%mmx_idx+1
+%assign %%off %%off+8
+%endif
+%endif ; (%2-%%off) >= 8
+%endif
+
+%if (%2-%%off) >= 4
+%if %2 > 8 && (%2-%%off) > 4
+ movq [dstq+%2-8], mm %+ %%mmx_idx
+%assign %%off %2
+%else
+ movd [dstq+%%off], mm %+ %%mmx_idx
+%assign %%off %%off+4
+%endif
+%assign %%mmx_idx %%mmx_idx+1
+%endif ; (%2-%%off) >= 4
+
+%if (%2-%%off) >= 1
+%if %2 >= 4
+ movd [dstq+%2-4], mm %+ %%mmx_idx
+%elif (%2-%%off) == 1
+ mov [dstq+%2-1], valb
+%elif (%2-%%off) == 2
+ mov [dstq+%2-2], valw
+%else
+ mov [dstq+%2-3], valw
+ ror vald, 16
+ mov [dstq+%2-1], valb
+%ifnidn %1, body
+ ror vald, 16
+%endif
+%endif
+%endif ; (%2-%%off) >= 1
+%endmacro ; WRITE_NUM_BYTES
+
+; vertical top/bottom extend and body copy fast loops
+; these are function pointers to set-width line copy functions, i.e.
+; they read a fixed number of pixels into set registers, and write
+; those out into the destination buffer
+%macro VERTICAL_EXTEND 2
+%assign %%n %1
+%rep 1+%2-%1
+%if %%n <= 3
+%if ARCH_X86_64
+cglobal emu_edge_vfix %+ %%n, 6, 8, 0, dst, dst_stride, src, src_stride, \
+ start_y, end_y, val, bh
+ mov bhq, r6mp ; r6mp = bhmp
+%else ; x86-32
+cglobal emu_edge_vfix %+ %%n, 0, 6, 0, val, dst, src, start_y, end_y, bh
+ mov dstq, r0mp
+ mov srcq, r2mp
+ mov start_yq, r4mp
+ mov end_yq, r5mp
+ mov bhq, r6mp
+%define dst_strideq r1mp
+%define src_strideq r3mp
+%endif ; x86-64/32
+%else
+%if ARCH_X86_64
+cglobal emu_edge_vfix %+ %%n, 7, 7, 1, dst, dst_stride, src, src_stride, \
+ start_y, end_y, bh
+%else ; x86-32
+cglobal emu_edge_vfix %+ %%n, 1, 5, 1, dst, src, start_y, end_y, bh
+ mov srcq, r2mp
+ mov start_yq, r4mp
+ mov end_yq, r5mp
+ mov bhq, r6mp
+%define dst_strideq r1mp
+%define src_strideq r3mp
+%endif ; x86-64/32
+%endif
+ ; FIXME move this to c wrapper?
+ sub bhq, end_yq ; bh -= end_y
+ sub end_yq, start_yq ; end_y -= start_y
+
+ ; extend pixels above body
+ test start_yq, start_yq ; if (start_y) {
+ jz .body_loop
+ READ_NUM_BYTES top, %%n ; $variable_regs = read($n)
+.top_loop: ; do {
+ WRITE_NUM_BYTES top, %%n ; write($variable_regs, $n)
+ add dstq, dst_strideq ; dst += linesize
+ dec start_yq ; } while (--start_y)
+ jnz .top_loop ; }
+
+ ; copy body pixels
+.body_loop: ; do {
+ READ_NUM_BYTES body, %%n ; $variable_regs = read($n)
+ WRITE_NUM_BYTES body, %%n ; write($variable_regs, $n)
+ add dstq, dst_strideq ; dst += dst_stride
+ add srcq, src_strideq ; src += src_stride
+ dec end_yq ; } while (--end_y)
+ jnz .body_loop
+
+ ; copy bottom pixels
+ test bhq, bhq ; if (block_h) {
+ jz .end
+ sub srcq, src_strideq ; src -= linesize
+ READ_NUM_BYTES bottom, %%n ; $variable_regs = read($n)
+.bottom_loop: ; do {
+ WRITE_NUM_BYTES bottom, %%n ; write($variable_regs, $n)
+ add dstq, dst_strideq ; dst += linesize
+ dec bhq ; } while (--bh)
+ jnz .bottom_loop ; }
+
+.end:
+ RET
+%assign %%n %%n+1
+%endrep ; 1+%2-%1
+%endmacro ; VERTICAL_EXTEND
+
+INIT_MMX mmx
+VERTICAL_EXTEND 1, 15
+
+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
+
+INIT_XMM sse2
+H_EXTEND 16, 22
+
+%if HAVE_AVX2_EXTERNAL
+INIT_XMM avx2
+H_EXTEND 8, 22
+%endif
+
+INIT_MMX mmxext
+cglobal prefetch, 3, 3, 0, buf, stride, h
+.loop:
+ prefetcht0 [bufq]
+ add bufq, strideq
+ dec hd
+ jg .loop
+ REP_RET