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mpv/libvo/yuv2rgb_mmx.c
jkeil 009d2b0dc7 yuv2rgb_mmx crashes with ffdivx codec, when we play back avi files that have
a frame width that is not an exact multiple of 8.

Testcase: 405.avi (356x240).  Playing on an MMX capable x86 system using the
x11 video-out driver results in a segfault.

The MMX routines convert image data in quantities of 8 pixels in each loop,
and the inner loop was not terminated in case there are only 1-7 pixels left,
producing too much RGB output.

For now, just ignore the last few pixels on each row, to avoid the segfaults.
(Gives a black vertical border on the right, if you play a video with
width%8 != 0)  A possible future enhancement would be, to add a second loop
to convert the last width%8 pixels to RGB using a byte loop.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1307 b3059339-0415-0410-9bf9-f77b7e298cf2
2001-07-12 15:23:26 +00:00

405 lines
14 KiB
C

/*
* yuv2rgb_mmx.c, Software YUV to RGB coverter with Intel MMX "technology"
*
* Copyright (C) 2000, Silicon Integrated System Corp.
* All Rights Reserved.
*
* Author: Olie Lho <ollie@sis.com.tw>
*
* This file is part of mpeg2dec, a free MPEG-2 video decoder
*
* mpeg2dec 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, or (at your option)
* any later version.
*
* mpeg2dec 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include "../config.h"
#include "mmx.h"
//#include "libmpeg2/mpeg2.h"
//#include "libmpeg2/mpeg2_internal.h"
#include <inttypes.h>
#include "yuv2rgb.h"
/* hope these constant values are cache line aligned */
uint64_t mmx_80w = 0x0080008000800080;
uint64_t mmx_10w = 0x1010101010101010;
uint64_t mmx_00ffw = 0x00ff00ff00ff00ff;
uint64_t mmx_Y_coeff = 0x253f253f253f253f;
/* hope these constant values are cache line aligned */
uint64_t mmx_U_green = 0xf37df37df37df37d;
uint64_t mmx_U_blue = 0x4093409340934093;
uint64_t mmx_V_red = 0x3312331233123312;
uint64_t mmx_V_green = 0xe5fce5fce5fce5fc;
/* hope these constant values are cache line aligned */
uint64_t mmx_redmask = 0xf8f8f8f8f8f8f8f8;
uint64_t mmx_grnmask = 0xfcfcfcfcfcfcfcfc;
uint64_t mmx_grnshift = 0x03;
uint64_t mmx_blueshift = 0x03;
#ifdef HAVE_MMX2
/* use this for K7 and p3 only */
#define MOVNTQ "movntq"
#else
/* for MMX-only processors */
#define MOVNTQ "movq"
#endif
#if !defined( HAVE_MMX2) && defined( HAVE_3DNOW)
/* for K6 2/2+/3 */
#define EMMS "femms;"
#else
#define EMMS "emms;"
#endif
static void yuv420_rgb16_mmx (uint8_t * image, uint8_t * py,
uint8_t * pu, uint8_t * pv,
int h_size, int v_size,
int rgb_stride, int y_stride, int uv_stride)
{
int even = 1;
int x, y;
__asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
for (y = v_size; --y >= 0; ) {
uint8_t *_image = image;
uint8_t *_py = py;
uint8_t *_pu = pu;
uint8_t *_pv = pv;
/* load data for start of next scan line */
__asm__ __volatile__ (
"movd (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
"movd (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
"movq (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
: : "r" (_py), "r" (_pu), "r" (_pv));
for (x = h_size >> 3; --x >= 0; ) {
/* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
pixels in each iteration */
__asm__ __volatile__ (
/* 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 */
/* convert the chroma part */
"punpcklbw %%mm4, %%mm0;" /* scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 */
"punpcklbw %%mm4, %%mm1;" /* scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 */
"psubsw mmx_80w, %%mm0;" /* Cb -= 128 */
"psubsw mmx_80w, %%mm1;" /* Cr -= 128 */
"psllw $3, %%mm0;" /* Promote precision */
"psllw $3, %%mm1;" /* Promote precision */
"movq %%mm0, %%mm2;" /* Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 */
"movq %%mm1, %%mm3;" /* Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 */
"pmulhw mmx_U_green, %%mm2;" /* Mul Cb with green coeff -> Cb green */
"pmulhw mmx_V_green, %%mm3;" /* Mul Cr with green coeff -> Cr green */
"pmulhw mmx_U_blue, %%mm0;" /* Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 */
"pmulhw mmx_V_red, %%mm1;" /* Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 */
"paddsw %%mm3, %%mm2;" /* Cb green + Cr green -> Cgreen */
/* convert the luma part */
"psubusb mmx_10w, %%mm6;" /* Y -= 16 */
"movq %%mm6, %%mm7;" /* Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
"pand mmx_00ffw, %%mm6;" /* get Y even 00 Y6 00 Y4 00 Y2 00 Y0 */
"psrlw $8, %%mm7;" /* get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 */
"psllw $3, %%mm6;" /* Promote precision */
"psllw $3, %%mm7;" /* Promote precision */
"pmulhw mmx_Y_coeff, %%mm6;" /* Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 */
"pmulhw mmx_Y_coeff, %%mm7;" /* Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 */
/* 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 */
"movq %%mm0, %%mm3;" /* Copy Cblue */
"movq %%mm1, %%mm4;" /* Copy Cred */
"movq %%mm2, %%mm5;" /* Copy Cgreen */
"paddsw %%mm6, %%mm0;" /* Y even + Cblue 00 B6 00 B4 00 B2 00 B0 */
"paddsw %%mm7, %%mm3;" /* Y odd + Cblue 00 B7 00 B5 00 B3 00 B1 */
"paddsw %%mm6, %%mm1;" /* Y even + Cred 00 R6 00 R4 00 R2 00 R0 */
"paddsw %%mm7, %%mm4;" /* Y odd + Cred 00 R7 00 R5 00 R3 00 R1 */
"paddsw %%mm6, %%mm2;" /* Y even + Cgreen 00 G6 00 G4 00 G2 00 G0 */
"paddsw %%mm7, %%mm5;" /* Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1 */
/* Limit RGB even to 0..255 */
"packuswb %%mm0, %%mm0;" /* B6 B4 B2 B0 B6 B4 B2 B0 */
"packuswb %%mm1, %%mm1;" /* R6 R4 R2 R0 R6 R4 R2 R0 */
"packuswb %%mm2, %%mm2;" /* G6 G4 G2 G0 G6 G4 G2 G0 */
/* Limit RGB odd to 0..255 */
"packuswb %%mm3, %%mm3;" /* B7 B5 B3 B1 B7 B5 B3 B1 */
"packuswb %%mm4, %%mm4;" /* R7 R5 R3 R1 R7 R5 R3 R1 */
"packuswb %%mm5, %%mm5;" /* G7 G5 G3 G1 G7 G5 G3 G1 */
/* Interleave RGB even and odd */
"punpcklbw %%mm3, %%mm0;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
"punpcklbw %%mm4, %%mm1;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
"punpcklbw %%mm5, %%mm2;" /* G7 G6 G5 G4 G3 G2 G1 G0 */
/* mask unneeded bits off */
"pand mmx_redmask, %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
"pand mmx_grnmask, %%mm2;" /* g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0 */
"pand mmx_redmask, %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
"psrlw mmx_blueshift,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
"pxor %%mm4, %%mm4;" /* zero mm4 */
"movq %%mm0, %%mm5;" /* Copy B7-B0 */
"movq %%mm2, %%mm7;" /* Copy G7-G0 */
/* convert rgb24 plane to rgb16 pack for pixel 0-3 */
"punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
"punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
"psllw mmx_blueshift,%%mm2;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
"por %%mm2, %%mm0;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
"movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
MOVNTQ " %%mm0, (%3);" /* store pixel 0-3 */
/* convert rgb24 plane to rgb16 pack for pixel 0-3 */
"punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
"punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
"psllw mmx_blueshift,%%mm7;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
"movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
"por %%mm7, %%mm5;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
"movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
MOVNTQ " %%mm5, 8 (%3);" /* store pixel 4-7 */
: : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));
_py += 8;
_pu += 4;
_pv += 4;
_image += 16;
}
if (!even) {
pu += uv_stride;
pv += uv_stride;
}
py += y_stride;
image += rgb_stride;
even = (!even);
}
__asm__ __volatile__ (EMMS);
}
static void yuv420_argb32_mmx (uint8_t * image, uint8_t * py,
uint8_t * pu, uint8_t * pv,
int h_size, int v_size,
int rgb_stride, int y_stride, int uv_stride)
{
int even = 1;
int x, y;
__asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
for (y = v_size; --y >= 0; ) {
uint8_t *_image = image;
uint8_t *_py = py;
uint8_t *_pu = pu;
uint8_t *_pv = pv;
/* load data for start of next scan line */
__asm__ __volatile__
(
"movd (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
"movd (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
"movq (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
: : "r" (_py), "r" (_pu), "r" (_pv)
);
for (x = h_size >> 3; --x >= 0; ) {
/* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
pixels in each iteration */
__asm__ __volatile__ (
/* 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 */
/* convert the chroma part */
"punpcklbw %%mm4, %%mm0;" /* scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 */
"punpcklbw %%mm4, %%mm1;" /* scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 */
"psubsw mmx_80w, %%mm0;" /* Cb -= 128 */
"psubsw mmx_80w, %%mm1;" /* Cr -= 128 */
"psllw $3, %%mm0;" /* Promote precision */
"psllw $3, %%mm1;" /* Promote precision */
"movq %%mm0, %%mm2;" /* Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 */
"movq %%mm1, %%mm3;" /* Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 */
"pmulhw mmx_U_green, %%mm2;" /* Mul Cb with green coeff -> Cb green */
"pmulhw mmx_V_green, %%mm3;" /* Mul Cr with green coeff -> Cr green */
"pmulhw mmx_U_blue, %%mm0;" /* Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 */
"pmulhw mmx_V_red, %%mm1;" /* Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 */
"paddsw %%mm3, %%mm2;" /* Cb green + Cr green -> Cgreen */
/* convert the luma part */
"psubusb mmx_10w, %%mm6;" /* Y -= 16 */
"movq %%mm6, %%mm7;" /* Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
"pand mmx_00ffw, %%mm6;" /* get Y even 00 Y6 00 Y4 00 Y2 00 Y0 */
"psrlw $8, %%mm7;" /* get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 */
"psllw $3, %%mm6;" /* Promote precision */
"psllw $3, %%mm7;" /* Promote precision */
"pmulhw mmx_Y_coeff, %%mm6;" /* Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 */
"pmulhw mmx_Y_coeff, %%mm7;" /* Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 */
/* 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 */
"movq %%mm0, %%mm3;" /* Copy Cblue */
"movq %%mm1, %%mm4;" /* Copy Cred */
"movq %%mm2, %%mm5;" /* Copy Cgreen */
"paddsw %%mm6, %%mm0;" /* Y even + Cblue 00 B6 00 B4 00 B2 00 B0 */
"paddsw %%mm7, %%mm3;" /* Y odd + Cblue 00 B7 00 B5 00 B3 00 B1 */
"paddsw %%mm6, %%mm1;" /* Y even + Cred 00 R6 00 R4 00 R2 00 R0 */
"paddsw %%mm7, %%mm4;" /* Y odd + Cred 00 R7 00 R5 00 R3 00 R1 */
"paddsw %%mm6, %%mm2;" /* Y even + Cgreen 00 G6 00 G4 00 G2 00 G0 */
"paddsw %%mm7, %%mm5;" /* Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1 */
/* Limit RGB even to 0..255 */
"packuswb %%mm0, %%mm0;" /* B6 B4 B2 B0 B6 B4 B2 B0 */
"packuswb %%mm1, %%mm1;" /* R6 R4 R2 R0 R6 R4 R2 R0 */
"packuswb %%mm2, %%mm2;" /* G6 G4 G2 G0 G6 G4 G2 G0 */
/* Limit RGB odd to 0..255 */
"packuswb %%mm3, %%mm3;" /* B7 B5 B3 B1 B7 B5 B3 B1 */
"packuswb %%mm4, %%mm4;" /* R7 R5 R3 R1 R7 R5 R3 R1 */
"packuswb %%mm5, %%mm5;" /* G7 G5 G3 G1 G7 G5 G3 G1 */
/* Interleave RGB even and odd */
"punpcklbw %%mm3, %%mm0;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
"punpcklbw %%mm4, %%mm1;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
"punpcklbw %%mm5, %%mm2;" /* G7 G6 G5 G4 G3 G2 G1 G0 */
/* 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 */
"pxor %%mm3, %%mm3;" /* zero mm3 */
"movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
"movq %%mm1, %%mm7;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
"movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
"movq %%mm1, %%mm5;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
"punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */
"punpcklbw %%mm3, %%mm7;" /* 00 R3 00 R2 00 R1 00 R0 */
"punpcklwd %%mm7, %%mm6;" /* 00 R1 B1 G1 00 R0 B0 G0 */
MOVNTQ " %%mm6, (%3);" /* Store ARGB1 ARGB0 */
"movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
"punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */
"punpckhwd %%mm7, %%mm6;" /* 00 R3 G3 B3 00 R2 B3 G2 */
MOVNTQ " %%mm6, 8 (%3);" /* Store ARGB3 ARGB2 */
"punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */
"punpckhbw %%mm3, %%mm5;" /* 00 R7 00 R6 00 R5 00 R4 */
"punpcklwd %%mm5, %%mm4;" /* 00 R5 B5 G5 00 R4 B4 G4 */
MOVNTQ " %%mm4, 16 (%3);" /* Store ARGB5 ARGB4 */
"movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
"punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */
"punpckhwd %%mm5, %%mm4;" /* 00 R7 G7 B7 00 R6 B6 G6 */
MOVNTQ " %%mm4, 24 (%3);" /* Store ARGB7 ARGB6 */
"movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
"movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
"pxor %%mm4, %%mm4;" /* zero mm4 */
"movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
: : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));
_py += 8;
_pu += 4;
_pv += 4;
_image += 32;
}
if (!even) {
pu += uv_stride;
pv += uv_stride;
}
py += y_stride;
image += rgb_stride;
even = (!even);
}
__asm__ __volatile__ (EMMS);
}
yuv2rgb_fun yuv2rgb_init_mmx (int bpp, int mode)
{
// if (bpp == 15 || bpp == 16) {
if (bpp == 16 && mode == MODE_RGB) return yuv420_rgb16_mmx;
if (bpp == 32 && mode == MODE_RGB) return yuv420_argb32_mmx;
return NULL; // Fallback to C.
}