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FFmpeg/libswscale/x86/yuv_2_rgb.asm

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;******************************************************************************
;* software YUV to RGB converter
;*
;* Copyright (C) 2001-2007 Michael Niedermayer
;* (c) 2010 Konstantin Shishkov
;*
;* 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_RODATA
; below variables are named like mask_dwXY, which means to preserve dword No.X & No.Y
mask_dw036 : db -1, -1, 0, 0, 0, 0, -1, -1, 0, 0, 0, 0, -1, -1, 0, 0
mask_dw147 : db 0, 0, -1, -1, 0, 0, 0, 0, -1, -1, 0, 0, 0, 0, -1, -1
mask_dw25 : db 0, 0, 0, 0, -1, -1, 0, 0, 0, 0, -1, -1, 0, 0, 0, 0
rgb24_shuf1: db 0, 1, 6, 7, 12, 13, 2, 3, 8, 9, 14, 15, 4, 5, 10, 11
rgb24_shuf2: db 10, 11, 0, 1, 6, 7, 12, 13, 2, 3, 8, 9, 14, 15, 4, 5
rgb24_shuf3: db 4, 5, 10, 11, 0, 1, 6, 7, 12, 13, 2, 3, 8, 9, 14, 15
gbrp_shuf : db 0, 8, 1, 9, 2, 10, 3, 11, 4, 12, 5, 13, 6, 14, 7, 15
pw_00ff: times 8 dw 255
pb_f8: times 16 db 248
pb_e0: times 16 db 224
pb_03: times 16 db 3
pb_07: times 16 db 7
SECTION .text
;-----------------------------------------------------------------------------
;
; YUV420/YUVA420 to RGB/BGR 15/16/24/32
; R = Y + ((vrCoff * (v - 128)) >> 8)
; G = Y - ((ugCoff * (u - 128) + vgCoff * (v - 128)) >> 8)
; B = Y + ((ubCoff * (u - 128)) >> 8)
;
;-----------------------------------------------------------------------------
%macro yuv2rgb_fn 3
%if %3 == 32
%ifidn %1, yuva
%define parameters index, image, pu_index, pv_index, pointer_c_dither, py_2index, pa_2index
%define GPR_num 7
%else
%define parameters index, image, pu_index, pv_index, pointer_c_dither, py_2index
%define GPR_num 6
%endif
%else
%ifidn %2, gbrp
%define parameters index, image, dst_b, dst_r, pu_index, pv_index, pointer_c_dither, py_2index
%define GPR_num 8
%else
%define parameters index, image, pu_index, pv_index, pointer_c_dither, py_2index
%define GPR_num 6
%endif
%endif
%define m_green m2
%define m_alpha m3
%define m_y m6
%define m_u m0
%define m_v m1
%ifidn %2, rgb
%define m_red m1
%define m_blue m0
%else
%define m_red m0
%define m_blue m1
%endif
%define time_num 2
%if ARCH_X86_32
%define reg_num 8
%define my_offset [pointer_c_ditherq + 8 * 8]
%define mu_offset [pointer_c_ditherq + 9 * 8]
%define mv_offset [pointer_c_ditherq + 10 * 8]
%define mug_coff [pointer_c_ditherq + 7 * 8]
%define mvg_coff [pointer_c_ditherq + 6 * 8]
%define my_coff [pointer_c_ditherq + 3 * 8]
%define mub_coff [pointer_c_ditherq + 5 * 8]
%define mvr_coff [pointer_c_ditherq + 4 * 8]
%else ; ARCH_X86_64
%define reg_num 16
%define y_offset m8
%define u_offset m9
%define v_offset m10
%define ug_coff m11
%define vg_coff m12
%define y_coff m13
%define ub_coff m14
%define vr_coff m15
%endif ; ARCH_X86_32/64
cglobal %1_420_%2%3, GPR_num, GPR_num, reg_num, parameters
%if ARCH_X86_64
movsxd indexq, indexd
VBROADCASTSD y_offset, [pointer_c_ditherq + 8 * 8]
VBROADCASTSD u_offset, [pointer_c_ditherq + 9 * 8]
VBROADCASTSD v_offset, [pointer_c_ditherq + 10 * 8]
VBROADCASTSD ug_coff, [pointer_c_ditherq + 7 * 8]
VBROADCASTSD vg_coff, [pointer_c_ditherq + 6 * 8]
VBROADCASTSD y_coff, [pointer_c_ditherq + 3 * 8]
VBROADCASTSD ub_coff, [pointer_c_ditherq + 5 * 8]
VBROADCASTSD vr_coff, [pointer_c_ditherq + 4 * 8]
%endif
.loop0:
movu m_y, [py_2indexq + 2 * indexq]
movh m_u, [pu_indexq + indexq]
movh m_v, [pv_indexq + indexq]
pxor m4, m4
mova m7, m6
punpcklbw m0, m4
punpcklbw m1, m4
mova m2, [pw_00ff]
pand m6, m2
psrlw m7, 8
psllw m0, 3
psllw m1, 3
psllw m6, 3
psllw m7, 3
%if ARCH_X86_32
VBROADCASTSD m2, mu_offset
VBROADCASTSD m3, mv_offset
VBROADCASTSD m4, my_offset
psubsw m0, m2 ; U = U - 128
psubsw m1, m3 ; V = V - 128
psubw m6, m4
psubw m7, m4
VBROADCASTSD m2, mug_coff
VBROADCASTSD m3, mvg_coff
VBROADCASTSD m4, my_coff
VBROADCASTSD m5, mub_coff
pmulhw m2, m0
pmulhw m3, m1
pmulhw m6, m4
pmulhw m7, m4
pmulhw m0, m5
VBROADCASTSD m4, mvr_coff
pmulhw m1, m4
%else ; ARCH_X86_64
psubsw m0, u_offset ; U = U - 128
psubsw m1, v_offset ; V = V - 128
psubw m6, y_offset
psubw m7, y_offset
mova m2, m0
mova m3, m1
pmulhw m2, ug_coff
pmulhw m3, vg_coff
pmulhw m6, y_coff
pmulhw m7, y_coff
pmulhw m0, ub_coff
pmulhw m1, vr_coff
%endif
paddsw m2, m3
mova m3, m7
mova m5, m7
paddsw m3, m0 ; B1 B3 B5 B7 ...
paddsw m5, m1 ; R1 R3 R5 R7 ...
paddsw m7, m2 ; G1 G3 G5 G7 ...
paddsw m0, m6 ; B0 B2 B4 B6 ...
paddsw m1, m6 ; R0 R2 R4 R6 ...
paddsw m2, m6 ; G0 G2 G4 G6 ...
%if %3 == 24 ; PACK RGB24
packuswb m0, m3 ; B0 B2 B4 B6 ... B1 B3 B5 B7 ...
packuswb m1, m5 ; R0 R2 R4 R6 ... R1 R3 R5 R7 ...
packuswb m2, m7 ; G0 G2 G4 G6 ... G1 G3 G5 G7 ...
%ifidn %2, gbrp ; PLANAR GBRP
%define depth 1
mova m4, [gbrp_shuf]
pshufb m0, m4
pshufb m1, m4
pshufb m2, m4
movu [imageq], m2
movu [dst_bq], m0
movu [dst_rq], m1
add dst_bq, 8 * depth * time_num
add dst_rq, 8 * depth * time_num
%else
%define depth 3
mova m3, m_red
mova m6, m_blue
psrldq m_red, 8
punpcklbw m3, m2 ; R0 G0 R2 G2 R4 G4 R6 G6 R8 G8 ...
punpcklbw m6, m_red ; B0 R1 B2 R3 B4 R5 B6 R7 B8 R9 ...
punpckhbw m2, m_blue ; G1 B1 G3 B3 G5 B5 G7 B7 G9 B9 ...
pshufb m3, [rgb24_shuf1] ; r0 g0 r6 g6 r12 g12 r2 g2 r8 g8 r14 g14 r4 g4 r10 g10
pshufb m6, [rgb24_shuf2] ; b10 r11 b0 r1 b6 r7 b12 r13 b2 r3 b8 r9 b14 r15 b4 r5
pshufb m2, [rgb24_shuf3] ; g5 b5 g11 b11 g1 b1 g7 b7 g13 b13 g3 b3 g9 b9 g15 b15
mova m7, [mask_dw036]
mova m4, [mask_dw147]
mova m5, [mask_dw25]
pand m0, m7, m3 ; r0 g0 --- --- --- --- r2 g2 --- --- --- --- r4 g4 --- ---
pand m1, m4, m6 ; --- --- b0 r1 --- --- --- --- b2 r3 --- --- --- --- b4 r5
por m0, m1
pand m1, m5, m2 ; --- --- --- --- g1 b1 --- --- --- --- g3 b3 --- --- --- ---
por m0, m1 ; r0 g0 b0 r1 g1 b1 r2 g2 b2 r3 g3 b3 r4 g4 b4 r5
pand m1, m7, m2 ; g5 b5 --- --- --- --- g7 b7 --- --- --- --- g9 b9 --- ---
pand m7, m6 ; b10 r11 --- --- --- --- b12 r13 --- --- --- --- b14 r15 --- ---
pand m6, m5 ; --- --- --- --- b6 r7 --- --- --- --- b8 r9 --- --- --- ---
por m1, m6
pand m6, m4, m3 ; --- --- r6 g6 --- --- --- --- r8 g8 --- --- --- --- r10 g10
pand m2, m4 ; --- --- g11 b11 --- --- --- --- g13 b13 --- --- --- --- g15 b15
pand m3, m5 ; --- --- --- --- r12 g12 --- --- --- --- r14 g14 --- --- --- ---
por m2, m7
por m1, m6 ; g5 b5 r6 g6 b6 r7 g7 b7 r8 g8 b8 r9 g9 b9 r10 g10
por m2, m3 ; b10 r11 g11 b11 r12 g12 b12 r13 g13 b13 r14 g14 b14 r15 g15 b15
movu [imageq], m0
movu [imageq + 16], m1
movu [imageq + 32], m2
%endif ; PLANAR GBRP
%else ; PACK RGB15/16/32
packuswb m0, m1
packuswb m3, m5
packuswb m2, m2
mova m1, m0
packuswb m7, m7
punpcklbw m0, m3 ; B0 B1 B2 B3 ... B7
punpckhbw m1, m3 ; R0 R1 R2 R3 ... R7
punpcklbw m2, m7 ; G0 G1 G2 G3 ... G7
%if %3 == 32 ; PACK RGB32
%define depth 4
%ifidn %1, yuv
pcmpeqd m3, m3 ; Set alpha empty
%else
movu m3, [pa_2indexq + 2 * indexq] ; Load alpha
%endif
mova m5, m_blue
mova m6, m_red
punpckhbw m5, m_green
punpcklbw m_blue, m_green
punpckhbw m6, m_alpha
punpcklbw m_red, m_alpha
mova m_green, m_blue
mova m_alpha, m5
punpcklwd m_blue, m_red
punpckhwd m_green, m_red
punpcklwd m5, m6
punpckhwd m_alpha, m6
movu [imageq + 0], m_blue
movu [imageq + 8 * time_num], m_green
movu [imageq + 16 * time_num], m5
movu [imageq + 24 * time_num], m_alpha
%else ; PACK RGB15/16
%define depth 2
%define red_dither m3
%define green_dither m4
%define blue_dither m5
VBROADCASTSD red_dither, [pointer_c_ditherq + 0 * 8]
VBROADCASTSD green_dither, [pointer_c_ditherq + 1 * 8]
VBROADCASTSD blue_dither, [pointer_c_ditherq + 2 * 8]
%if %3 == 15
%define gmask pb_03
%define isRGB15 1
%else
%define gmask pb_07
%define isRGB15 0
%endif
paddusb m0, blue_dither
paddusb m2, green_dither
paddusb m1, red_dither
pand m0, [pb_f8]
pand m1, [pb_f8]
mova m3, m2
psllw m2, 3 - isRGB15
psrlw m3, 5 + isRGB15
psrlw m0, 3
psrlw m1, isRGB15
pand m2, [pb_e0]
pand m3, [gmask]
por m0, m2
por m1, m3
mova m2, m0
punpcklbw m0, m1
punpckhbw m2, m1
movu [imageq], m0
movu [imageq + 8 * time_num], m2
%endif ; PACK RGB15/16
%endif ; PACK RGB15/16/32
add imageq, 8 * depth * time_num
add indexq, 4 * time_num
js .loop0
RET
%endmacro
INIT_XMM ssse3
yuv2rgb_fn yuv, rgb, 24
yuv2rgb_fn yuv, bgr, 24
yuv2rgb_fn yuv, rgb, 32
yuv2rgb_fn yuv, bgr, 32
yuv2rgb_fn yuva, rgb, 32
yuv2rgb_fn yuva, bgr, 32
yuv2rgb_fn yuv, rgb, 15
yuv2rgb_fn yuv, rgb, 16
%if ARCH_X86_64
yuv2rgb_fn yuv, gbrp, 24
%endif