i420_rgb_mmx.h
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上传日期：2009-03-27
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- /*****************************************************************************
- * transforms_yuvmmx.h: MMX YUV transformation assembly
- *****************************************************************************
- * Copyright (C) 1999-2004 VideoLAN
- * $Id: i420_rgb_mmx.h 7703 2004-05-17 19:38:13Z gbazin $
- *
- * Authors: Olie Lho <ollie@sis.com.tw>
- * Ga雔 Hendryckx <jimmy@via.ecp.fr>
- * Samuel Hocevar <sam@zoy.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /* hope these constant values are cache line aligned */
- #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
- #define USED_U64(foo)
- static const uint64_t foo __asm__ (#foo) __attribute__((used))
- #else
- #define USED_U64(foo)
- static const uint64_t foo __asm__ (#foo) __attribute__((unused))
- #endif
- USED_U64(mmx_80w) = 0x0080008000800080ULL;
- USED_U64(mmx_10w) = 0x1010101010101010ULL;
- USED_U64(mmx_00ffw) = 0x00ff00ff00ff00ffULL;
- USED_U64(mmx_Y_coeff) = 0x253f253f253f253fULL;
- USED_U64(mmx_U_green) = 0xf37df37df37df37dULL;
- USED_U64(mmx_U_blue) = 0x4093409340934093ULL;
- USED_U64(mmx_V_red) = 0x3312331233123312ULL;
- USED_U64(mmx_V_green) = 0xe5fce5fce5fce5fcULL;
- USED_U64(mmx_mask_f8) = 0xf8f8f8f8f8f8f8f8ULL;
- USED_U64(mmx_mask_fc) = 0xfcfcfcfcfcfcfcfcULL;
- #undef USED_U64
- #define MMX_INIT_16 " n
- movd (%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 n
- movd (%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 n
- pxor %%mm4, %%mm4 # zero mm4 n
- movq (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- #movl $0, (%3) # cache preload for image n
- "
- #define MMX_INIT_16_GRAY " n
- movq (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- #movl $0, (%3) # cache preload for image n
- "
- #define MMX_INIT_32 " n
- movd (%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 n
- movl $0, (%3) # cache preload for image n
- movd (%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 n
- pxor %%mm4, %%mm4 # zero mm4 n
- movq (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- "
- /*
- * Do the multiply part of the conversion for even and odd pixels,
- * register usage:
- * mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,
- * mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,
- * mm6 -> Y even, mm7 -> Y odd
- */
- #define MMX_YUV_MUL " n
- # convert the chroma part n
- punpcklbw %%mm4, %%mm0 # scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 n
- punpcklbw %%mm4, %%mm1 # scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 n
- psubsw mmx_80w, %%mm0 # Cb -= 128 n
- psubsw mmx_80w, %%mm1 # Cr -= 128 n
- psllw $3, %%mm0 # Promote precision n
- psllw $3, %%mm1 # Promote precision n
- movq %%mm0, %%mm2 # Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 n
- movq %%mm1, %%mm3 # Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 n
- pmulhw mmx_U_green, %%mm2 # Mul Cb with green coeff -> Cb green n
- pmulhw mmx_V_green, %%mm3 # Mul Cr with green coeff -> Cr green n
- pmulhw mmx_U_blue, %%mm0 # Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 n
- pmulhw mmx_V_red, %%mm1 # Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 n
- paddsw %%mm3, %%mm2 # Cb green + Cr green -> Cgreen n
- n
- # convert the luma part n
- psubusb mmx_10w, %%mm6 # Y -= 16 n
- movq %%mm6, %%mm7 # Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- pand mmx_00ffw, %%mm6 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0 n
- psrlw $8, %%mm7 # get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 n
- psllw $3, %%mm6 # Promote precision n
- psllw $3, %%mm7 # Promote precision n
- pmulhw mmx_Y_coeff, %%mm6 # Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 n
- pmulhw mmx_Y_coeff, %%mm7 # Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 n
- "
- /*
- * Do the addition part of the conversion for even and odd pixels,
- * register usage:
- * mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,
- * mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,
- * mm6 -> Y even, mm7 -> Y odd
- */
- #define MMX_YUV_ADD " n
- # Do horizontal and vertical scaling n
- movq %%mm0, %%mm3 # Copy Cblue n
- movq %%mm1, %%mm4 # Copy Cred n
- movq %%mm2, %%mm5 # Copy Cgreen n
- paddsw %%mm6, %%mm0 # Y even + Cblue 00 B6 00 B4 00 B2 00 B0 n
- paddsw %%mm7, %%mm3 # Y odd + Cblue 00 B7 00 B5 00 B3 00 B1 n
- paddsw %%mm6, %%mm1 # Y even + Cred 00 R6 00 R4 00 R2 00 R0 n
- paddsw %%mm7, %%mm4 # Y odd + Cred 00 R7 00 R5 00 R3 00 R1 n
- paddsw %%mm6, %%mm2 # Y even + Cgreen 00 G6 00 G4 00 G2 00 G0 n
- paddsw %%mm7, %%mm5 # Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1 n
- n
- # Limit RGB even to 0..255 n
- packuswb %%mm0, %%mm0 # B6 B4 B2 B0 / B6 B4 B2 B0 n
- packuswb %%mm1, %%mm1 # R6 R4 R2 R0 / R6 R4 R2 R0 n
- packuswb %%mm2, %%mm2 # G6 G4 G2 G0 / G6 G4 G2 G0 n
- n
- # Limit RGB odd to 0..255 n
- packuswb %%mm3, %%mm3 # B7 B5 B3 B1 / B7 B5 B3 B1 n
- packuswb %%mm4, %%mm4 # R7 R5 R3 R1 / R7 R5 R3 R1 n
- packuswb %%mm5, %%mm5 # G7 G5 G3 G1 / G7 G5 G3 G1 n
- n
- # Interleave RGB even and odd n
- punpcklbw %%mm3, %%mm0 # B7 B6 B5 B4 B3 B2 B1 B0 n
- punpcklbw %%mm4, %%mm1 # R7 R6 R5 R4 R3 R2 R1 R0 n
- punpcklbw %%mm5, %%mm2 # G7 G6 G5 G4 G3 G2 G1 G0 n
- "
- /*
- * Grayscale case, only use Y
- */
- #define MMX_YUV_GRAY " n
- # convert the luma part n
- psubusb mmx_10w, %%mm6 n
- movq %%mm6, %%mm7 n
- pand mmx_00ffw, %%mm6 n
- psrlw $8, %%mm7 n
- psllw $3, %%mm6 n
- psllw $3, %%mm7 n
- pmulhw mmx_Y_coeff, %%mm6 n
- pmulhw mmx_Y_coeff, %%mm7 n
- packuswb %%mm6, %%mm6 n
- packuswb %%mm7, %%mm7 n
- punpcklbw %%mm7, %%mm6 n
- "
- #define MMX_UNPACK_16_GRAY " n
- movq %%mm6, %%mm5 n
- pand mmx_mask_f8, %%mm6 n
- pand mmx_mask_fc, %%mm5 n
- movq %%mm6, %%mm7 n
- psrlw $3, %%mm7 n
- pxor %%mm3, %%mm3 n
- movq %%mm7, %%mm2 n
- movq %%mm5, %%mm0 n
- punpcklbw %%mm3, %%mm5 n
- punpcklbw %%mm6, %%mm7 n
- psllw $3, %%mm5 n
- por %%mm5, %%mm7 n
- movq %%mm7, (%3) n
- punpckhbw %%mm3, %%mm0 n
- punpckhbw %%mm6, %%mm2 n
- psllw $3, %%mm0 n
- movq 8(%0), %%mm6 n
- por %%mm0, %%mm2 n
- movq %%mm2, 8(%3) n
- "
- /*
- * convert RGB plane to RGB 15 bits,
- * mm0 -> B, mm1 -> R, mm2 -> G,
- * mm4 -> GB, mm5 -> AR pixel 4-7,
- * mm6 -> GB, mm7 -> AR pixel 0-3
- */
- #define MMX_UNPACK_15 " n
- # mask unneeded bits off n
- pand mmx_mask_f8, %%mm0 # b7b6b5b4 b3______ b7b6b5b4 b3______ n
- psrlw $3,%%mm0 # ______b7 b6b5b4b3 ______b7 b6b5b4b3 n
- pand mmx_mask_f8, %%mm2 # g7g6g5g4 g3______ g7g6g5g4 g3______ n
- pand mmx_mask_f8, %%mm1 # r7r6r5r4 r3______ r7r6r5r4 r3______ n
- psrlw $1,%%mm1 # __r7r6r5 r4r3____ __r7r6r5 r4r3____ n
- pxor %%mm4, %%mm4 # zero mm4 n
- movq %%mm0, %%mm5 # Copy B7-B0 n
- movq %%mm2, %%mm7 # Copy G7-G0 n
- n
- # convert rgb24 plane to rgb15 pack for pixel 0-3 n
- punpcklbw %%mm4, %%mm2 # ________ ________ g7g6g5g4 g3______ n
- punpcklbw %%mm1, %%mm0 # r7r6r5r4 r3______ ______b7 b6b5b4b3 n
- psllw $2,%%mm2 # ________ ____g7g6 g5g4g3__ ________ n
- por %%mm2, %%mm0 # r7r6r5r4 r3__g7g6 g5g4g3b7 b6b5b4b3 n
- movq 8(%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- movq %%mm0, (%3) # store pixel 0-3 n
- n
- # convert rgb24 plane to rgb16 pack for pixel 0-3 n
- punpckhbw %%mm4, %%mm7 # ________ ________ g7g6g5g4 g3______ n
- punpckhbw %%mm1, %%mm5 # r7r6r5r4 r3______ ______b7 b6b5b4b3 n
- psllw $2,%%mm7 # ________ ____g7g6 g5g4g3__ ________ n
- movd 4(%1), %%mm0 # Load 4 Cb __ __ __ __ u3 u2 u1 u0 n
- por %%mm7, %%mm5 # r7r6r5r4 r3__g7g6 g5g4g3b7 b6b5b4b3 n
- movd 4(%2), %%mm1 # Load 4 Cr __ __ __ __ v3 v2 v1 v0 n
- movq %%mm5, 8(%3) # store pixel 4-7 n
- "
- /*
- * convert RGB plane to RGB 16 bits,
- * mm0 -> B, mm1 -> R, mm2 -> G,
- * mm4 -> GB, mm5 -> AR pixel 4-7,
- * mm6 -> GB, mm7 -> AR pixel 0-3
- */
- #define MMX_UNPACK_16 " n
- # mask unneeded bits off n
- pand mmx_mask_f8, %%mm0 # b7b6b5b4 b3______ b7b6b5b4 b3______ n
- pand mmx_mask_fc, %%mm2 # g7g6g5g4 g3g2____ g7g6g5g4 g3g2____ n
- pand mmx_mask_f8, %%mm1 # r7r6r5r4 r3______ r7r6r5r4 r3______ n
- psrlw $3,%%mm0 # ______b7 b6b5b4b3 ______b7 b6b5b4b3 n
- pxor %%mm4, %%mm4 # zero mm4 n
- movq %%mm0, %%mm5 # Copy B7-B0 n
- movq %%mm2, %%mm7 # Copy G7-G0 n
- n
- # convert rgb24 plane to rgb16 pack for pixel 0-3 n
- punpcklbw %%mm4, %%mm2 # ________ ________ g7g6g5g4 g3g2____ n
- punpcklbw %%mm1, %%mm0 # r7r6r5r4 r3______ ______b7 b6b5b4b3 n
- psllw $3,%%mm2 # ________ __g7g6g5 g4g3g2__ ________ n
- por %%mm2, %%mm0 # r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 n
- movq 8(%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- movq %%mm0, (%3) # store pixel 0-3 n
- n
- # convert rgb24 plane to rgb16 pack for pixel 0-3 n
- punpckhbw %%mm4, %%mm7 # ________ ________ g7g6g5g4 g3g2____ n
- punpckhbw %%mm1, %%mm5 # r7r6r5r4 r3______ ______b7 b6b5b4b3 n
- psllw $3,%%mm7 # ________ __g7g6g5 g4g3g2__ ________ n
- movd 4(%1), %%mm0 # Load 4 Cb __ __ __ __ u3 u2 u1 u0 n
- por %%mm7, %%mm5 # r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 n
- movd 4(%2), %%mm1 # Load 4 Cr __ __ __ __ v3 v2 v1 v0 n
- movq %%mm5, 8(%3) # store pixel 4-7 n
- "
- /*
- * convert RGB plane to RGB packed format,
- * mm0 -> B, mm1 -> R, mm2 -> G, mm3 -> 0,
- * mm4 -> GB, mm5 -> AR pixel 4-7,
- * mm6 -> GB, mm7 -> AR pixel 0-3
- */
- #define MMX_UNPACK_32 " n
- pxor %%mm3, %%mm3 # zero mm3 n
- movq %%mm0, %%mm6 # B7 B6 B5 B4 B3 B2 B1 B0 n
- movq %%mm1, %%mm7 # R7 R6 R5 R4 R3 R2 R1 R0 n
- movq %%mm0, %%mm4 # B7 B6 B5 B4 B3 B2 B1 B0 n
- movq %%mm1, %%mm5 # R7 R6 R5 R4 R3 R2 R1 R0 n
- punpcklbw %%mm2, %%mm6 # G3 B3 G2 B2 G1 B1 G0 B0 n
- punpcklbw %%mm3, %%mm7 # 00 R3 00 R2 00 R1 00 R0 n
- punpcklwd %%mm7, %%mm6 # 00 R1 B1 G1 00 R0 B0 G0 n
- movq %%mm6, (%3) # Store ARGB1 ARGB0 n
- movq %%mm0, %%mm6 # B7 B6 B5 B4 B3 B2 B1 B0 n
- punpcklbw %%mm2, %%mm6 # G3 B3 G2 B2 G1 B1 G0 B0 n
- punpckhwd %%mm7, %%mm6 # 00 R3 G3 B3 00 R2 B3 G2 n
- movq %%mm6, 8(%3) # Store ARGB3 ARGB2 n
- punpckhbw %%mm2, %%mm4 # G7 B7 G6 B6 G5 B5 G4 B4 n
- punpckhbw %%mm3, %%mm5 # 00 R7 00 R6 00 R5 00 R4 n
- punpcklwd %%mm5, %%mm4 # 00 R5 B5 G5 00 R4 B4 G4 n
- movq %%mm4, 16(%3) # Store ARGB5 ARGB4 n
- movq %%mm0, %%mm4 # B7 B6 B5 B4 B3 B2 B1 B0 n
- punpckhbw %%mm2, %%mm4 # G7 B7 G6 B6 G5 B5 G4 B4 n
- punpckhwd %%mm5, %%mm4 # 00 R7 G7 B7 00 R6 B6 G6 n
- movq %%mm4, 24(%3) # Store ARGB7 ARGB6 n
- n
- #movd 4(%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 n
- #movd 4(%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 n
- #pxor %%mm4, %%mm4 # zero mm4 n
- #movq 8(%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 n
- "
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