/*
* rgb_mmx.c
* Copyright (C) 2000-2003 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 stream decoder.
* See http://libmpeg2.sourceforge.net/ for updates.
*
* 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 of the License, 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#ifdef ARCH_X86
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include "mpeg2.h"
#include "mpeg2convert.h"
#include "convert_internal.h"
#include "attributes.h"
#include "mmx.h"
#define CPU_MMXEXT 0
#define CPU_MMX 1
/* CPU_MMXEXT/CPU_MMX adaptation layer */
#define movntq(src,dest) \
do { \
if (cpu == CPU_MMXEXT) \
movntq_r2m (src, dest); \
else \
movq_r2m (src, dest); \
} while (0)
static inline void mmx_yuv2rgb (uint8_t * py, uint8_t * pu, uint8_t * pv)
{
static mmx_t mmx_80w = {0x0080008000800080LL};
static mmx_t mmx_U_green = {0xf37df37df37df37dLL};
static mmx_t mmx_U_blue = {0x4093409340934093LL};
static mmx_t mmx_V_red = {0x3312331233123312LL};
static mmx_t mmx_V_green = {0xe5fce5fce5fce5fcLL};
static mmx_t mmx_10w = {0x1010101010101010LL};
static mmx_t mmx_00ffw = {0x00ff00ff00ff00ffLL};
static mmx_t mmx_Y_coeff = {0x253f253f253f253fLL};
movd_m2r (*pu, mm0); /* mm0 = 00 00 00 00 u3 u2 u1 u0 */
movd_m2r (*pv, mm1); /* mm1 = 00 00 00 00 v3 v2 v1 v0 */
movq_m2r (*py, mm6); /* mm6 = Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
pxor_r2r (mm4, mm4); /* mm4 = 0 */
/* XXX might do cache preload for image here */
/*
* 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
*/
punpcklbw_r2r (mm4, mm0); /* mm0 = u3 u2 u1 u0 */
punpcklbw_r2r (mm4, mm1); /* mm1 = v3 v2 v1 v0 */
psubsw_m2r (mmx_80w, mm0); /* u -= 128 */
psubsw_m2r (mmx_80w, mm1); /* v -= 128 */
psllw_i2r (3, mm0); /* promote precision */
psllw_i2r (3, mm1); /* promote precision */
movq_r2r (mm0, mm2); /* mm2 = u3 u2 u1 u0 */
movq_r2r (mm1, mm3); /* mm3 = v3 v2 v1 v0 */
pmulhw_m2r (mmx_U_green, mm2); /* mm2 = u * u_green */
pmulhw_m2r (mmx_V_green, mm3); /* mm3 = v * v_green */
pmulhw_m2r (mmx_U_blue, mm0); /* mm0 = chroma_b */
pmulhw_m2r (mmx_V_red, mm1); /* mm1 = chroma_r */
paddsw_r2r (mm3, mm2); /* mm2 = chroma_g */
psubusb_m2r (mmx_10w, mm6); /* Y -= 16 */
movq_r2r (mm6, mm7); /* mm7 = Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
pand_m2r (mmx_00ffw, mm6); /* mm6 = Y6 Y4 Y2 Y0 */
psrlw_i2r (8, mm7); /* mm7 = Y7 Y5 Y3 Y1 */
psllw_i2r (3, mm6); /* promote precision */
psllw_i2r (3, mm7); /* promote precision */
pmulhw_m2r (mmx_Y_coeff, mm6); /* mm6 = luma_rgb even */
pmulhw_m2r (mmx_Y_coeff, mm7); /* mm7 = luma_rgb odd */
/*
* 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_r2r (mm0, mm3); /* mm3 = chroma_b */
movq_r2r (mm1, mm4); /* mm4 = chroma_r */
movq_r2r (mm2, mm5); /* mm5 = chroma_g */
paddsw_r2r (mm6, mm0); /* mm0 = B6 B4 B2 B0 */
paddsw_r2r (mm7, mm3); /* mm3 = B7 B5 B3 B1 */
paddsw_r2r (mm6, mm1); /* mm1 = R6 R4 R2 R0 */
paddsw_r2r (mm7, mm4); /* mm4 = R7 R5 R3 R1 */
paddsw_r2r (mm6, mm2); /* mm2 = G6 G4 G2 G0 */
paddsw_r2r (mm7, mm5); /* mm5 = G7 G5 G3 G1 */
packuswb_r2r (mm0, mm0); /* saturate to 0-255 */
packuswb_r2r (mm1, mm1); /* saturate to 0-255 */
packuswb_r2r (mm2, mm2); /* saturate to 0-255 */
packuswb_r2r (mm3, mm3); /* saturate to 0-255 */
packuswb_r2r (mm4, mm4); /* saturate to 0-255 */
packuswb_r2r (mm5, mm5); /* saturate to 0-255 */
punpcklbw_r2r (mm3, mm0); /* mm0 = B7 B6 B5 B4 B3 B2 B1 B0 */
punpcklbw_r2r (mm4, mm1); /* mm1 = R7 R6 R5 R4 R3 R2 R1 R0 */
punpcklbw_r2r (mm5, mm2); /* mm2 = G7 G6 G5 G4 G3 G2 G1 G0 */
}
static inline void mmx_unpack_16rgb (uint8_t * image, const int cpu)
{
static mmx_t mmx_bluemask = {0xf8f8f8f8f8f8f8f8LL};
static mmx_t mmx_greenmask = {0xfcfcfcfcfcfcfcfcLL};
static mmx_t mmx_redmask = {0xf8f8f8f8f8f8f8f8LL};
/*
* 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
*/
pand_m2r (mmx_bluemask, mm0); /* mm0 = b7b6b5b4b3______ */
pand_m2r (mmx_greenmask, mm2); /* mm2 = g7g6g5g4g3g2____ */
pand_m2r (mmx_redmask, mm1); /* mm1 = r7r6r5r4r3______ */
psrlq_i2r (3, mm0); /* mm0 = ______b7b6b5b4b3 */
pxor_r2r (mm4, mm4); /* mm4 = 0 */
movq_r2r (mm0, mm5); /* mm5 = ______b7b6b5b4b3 */
movq_r2r (mm2, mm7); /* mm7 = g7g6g5g4g3g2____ */
punpcklbw_r2r (mm4, mm2);
punpcklbw_r2r (mm1, mm0);
psllq_i2r (3, mm2);
por_r2r (mm2, mm0);
movntq (mm0, *image);
punpckhbw_r2r (mm4, mm7);
punpckhbw_r2r (mm1, mm5);
psllq_i2r (3, mm7);
por_r2r (mm7, mm5);
movntq (mm5, *(image+8));
}
static inline void mmx_unpack_32rgb (uint8_t * image, const int cpu)
{
/*
* 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_r2r (mm3, mm3);
movq_r2r (mm0, mm6);
movq_r2r (mm1, mm7);
movq_r2r (mm0, mm4);
movq_r2r (mm1, mm5);
punpcklbw_r2r (mm2, mm6);
punpcklbw_r2r (mm3, mm7);
punpcklwd_r2r (mm7, mm6);
movntq (mm6, *image);
movq_r2r (mm0, mm6);
punpcklbw_r2r (mm2, mm6);
punpckhwd_r2r (mm7, mm6);
movntq (mm6, *(image+8));
punpckhbw_r2r (mm2, mm4);
punpckhbw_r2r (mm3, mm5);
punpcklwd_r2r (mm5, mm4);
movntq (mm4, *(image+16));
movq_r2r (mm0, mm4);
punpckhbw_r2r (mm2, mm4);
punpckhwd_r2r (mm5, mm4);
movntq (mm4, *(image+24));
}
static inline void rgb16 (void * const _id, uint8_t * const * src,
const unsigned int v_offset, const int cpu)
{
convert_rgb_t * const id = (convert_rgb_t *) _id;
uint8_t * dst;
uint8_t * py, * pu, * pv;
int i, j;
dst = id->rgb_ptr + id->rgb_slice * v_offset;
py = src[0]; pu = src[1]; pv = src[2];
i = 16;
do {
j = id->width;
do {
mmx_yuv2rgb (py, pu, pv);
mmx_unpack_16rgb (dst, cpu);
py += 8;
pu += 4;
pv += 4;
dst += 16;
} while (--j);
dst += id->rgb_increm;
py += id->y_increm;
if (--i == id->field) {
dst = id->rgb_ptr + id->rgb_slice * (v_offset + 1);
py = src[0] + id->y_stride_frame;
pu = src[1] + id->uv_stride_frame;
pv = src[2] + id->uv_stride_frame;
} else if (! (i & id->chroma420)) {
pu += id->uv_increm;
pv += id->uv_increm;
} else {
pu -= id->uv_stride_frame;
pv -= id->uv_stride_frame;
}
} while (i);
}
static inline void argb32 (void * const _id, uint8_t * const * src,
const unsigned int v_offset, const int cpu)
{
convert_rgb_t * const id = (convert_rgb_t *) _id;
uint8_t * dst;
uint8_t * py, * pu, * pv;
int i, j;
dst = id->rgb_ptr + id->rgb_slice * v_offset;
py = src[0]; pu = src[1]; pv = src[2];
i = 16;
do {
j = id->width;
do {
mmx_yuv2rgb (py, pu, pv);
mmx_unpack_32rgb (dst, cpu);
py += 8;
pu += 4;
pv += 4;
dst += 32;
} while (--j);
dst += id->rgb_increm;
py += id->y_increm;
if (--i == id->field) {
dst = id->rgb_ptr + id->rgb_slice * (v_offset + 1);
py = src[0] + id->y_stride_frame;
pu = src[1] + id->uv_stride_frame;
pv = src[2] + id->uv_stride_frame;
} else if (! (i & id->chroma420)) {
pu += id->uv_increm;
pv += id->uv_increm;
} else {
pu -= id->uv_stride_frame;
pv -= id->uv_stride_frame;
}
} while (i);
}
static void mmxext_rgb16 (void * id, uint8_t * const * src,
unsigned int v_offset)
{
rgb16 (id, src, v_offset, CPU_MMXEXT);
}
static void mmxext_argb32 (void * id, uint8_t * const * src,
unsigned int v_offset)
{
argb32 (id, src, v_offset, CPU_MMXEXT);
}
static void mmx_rgb16 (void * id, uint8_t * const * src, unsigned int v_offset)
{
rgb16 (id, src, v_offset, CPU_MMX);
}
static void mmx_argb32 (void * id, uint8_t * const * src,
unsigned int v_offset)
{
argb32 (id, src, v_offset, CPU_MMX);
}
mpeg2convert_copy_t * mpeg2convert_rgb_mmxext (int order, int bpp,
const mpeg2_sequence_t * seq)
{
if (order == MPEG2CONVERT_RGB && seq->chroma_width < seq->width) {
if (bpp == 16)
return mmxext_rgb16;
else if (bpp == 32)
return mmxext_argb32;
}
return NULL; /* Fallback to C */
}
mpeg2convert_copy_t * mpeg2convert_rgb_mmx (int order, int bpp,
const mpeg2_sequence_t * seq)
{
if (order == MPEG2CONVERT_RGB && seq->chroma_width < seq->width) {
if (bpp == 16)
return mmx_rgb16;
else if (bpp == 32)
return mmx_argb32;
}
return NULL; /* Fallback to C */
}
#endif