JDK14/Java14源码在线阅读
/*
* Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* FILENAME: mlib_v_ImageChannelExtract_43.c
*
* FUNCTIONS
* mlib_v_ImageChannelExtract_U8_43L_D1
* mlib_v_ImageChannelExtract_S16_43L_D1
*
* SYNOPSIS
*
* ARGUMENT
* src pointer to source image data
* dst pointer to destination image data
* slb source image line stride in bytes
* dlb destination image line stride in bytes
* dsize image data size in pixels
* xsize image width in pixels
* ysize image height in lines
* cmask channel mask
*
* DESCRIPTION
* extract the right or left 3 channels of a 4-channel image to
* a 3-channel image -- VIS version low level functions.
*
* ABGR => BGR (43R), or RGBA => RGB (43L)
*
* NOTE
* These functions are separated from mlib_v_ImageChannelExtract.c
* for loop unrolling and structure clarity.
*/
#include "vis_proto.h"
#include "mlib_image.h"
#include "mlib_v_ImageChannelExtract.h"
/***************************************************************/
#define EXTRACT_U8_43L /* shift left */ \
\
vis_alignaddr((void *)0, 3); \
dd0 = vis_faligndata(dd0, sd0); /* ----------r0g0b0 */ \
sda = vis_freg_pair(vis_read_lo(sd0), vis_read_hi(sd0)); \
dd0 = vis_faligndata(dd0, sda); /* ----r0g0b0r1g1b1 */ \
\
vis_alignaddr((void *)0, 2); \
dd0 = vis_faligndata(dd0, sd1); /* r0g0b0r1g1b1r2g2 */ \
\
vis_alignaddr((void *)0, 3); \
dd1 = vis_faligndata(dd1, sd1); /* ----------r2g2b2 */ \
sda = vis_freg_pair(vis_read_lo(sd1), vis_read_hi(sd1)); \
dd1 = vis_faligndata(dd1, sda); /* ----r2g2b2r3g3b3 */ \
dd1 = vis_faligndata(dd1, sd2); /* g2b2r3g3b3r4g4b4 */ \
\
sda = vis_freg_pair(vis_read_lo(sd2), vis_read_hi(sd2)); \
vis_alignaddr((void *)0, 1); \
dd1 = vis_faligndata(dd1, sda); /* b2r3g3b3r4g4b4r5 */ \
\
vis_alignaddr((void *)0, 3); \
dd2 = vis_faligndata(dd2, sda); /* ----------r5g5b5 */ \
\
dd2 = vis_faligndata(dd2, sd3); /* ----r5g5b5r6g6b6 */ \
sda = vis_freg_pair(vis_read_lo(sd3), vis_read_hi(sd3)); \
dd2 = vis_faligndata(dd2, sda); /* g5b5r6g6b6r7g7b7 */
/***************************************************************/
#define LOAD_EXTRACT_U8_43L \
\
vis_alignaddr((void *)soff, 0); \
s0 = s4; \
s1 = sp[1]; \
s2 = sp[2]; \
s3 = sp[3]; \
s4 = sp[4]; \
sd0 = vis_faligndata(s0, s1); /* the intermediate is ABGR aligned */ \
sd1 = vis_faligndata(s1, s2); \
sd2 = vis_faligndata(s2, s3); \
sd3 = vis_faligndata(s3, s4); \
sp += 4; \
\
/* vis_alignaddr((void *)0, 1); */ /* for _old only */ \
dd2old = dd2; \
EXTRACT_U8_43L
/***************************************************************/
/*
* Either source or destination data are not 8-byte aligned.
* And ssize is multiple of 8.
*/
void mlib_v_ImageChannelExtract_U8_43L_D1(const mlib_u8 *src,
mlib_u8 *dst,
mlib_s32 dsize)
{
mlib_u8 *sa, *da;
mlib_u8 *dend, *dend2; /* end points in dst */
mlib_d64 *dp; /* 8-byte aligned start points in dst */
mlib_d64 *sp; /* 8-byte aligned start point in src */
mlib_d64 s0, s1, s2, s3, s4; /* 8-byte source row data */
mlib_d64 sd0, sd1, sd2, sd3; /* 8-byte source data */
mlib_d64 dd0, dd1, dd2; /* dst data */
mlib_d64 dd2old; /* the last datum of the last step */
mlib_d64 sda;
mlib_s32 soff; /* offset of address in src */
mlib_s32 doff; /* offset of address in dst */
mlib_s32 emask; /* edge mask */
mlib_s32 i, n;
sa = (void *)src;
da = dst;
/* prepare the source address */
sp = (mlib_d64 *) ((mlib_addr) sa & (~7));
soff = ((mlib_addr) sa & 7);
/* prepare the destination addresses */
dp = (mlib_d64 *) ((mlib_addr) da & (~7));
dend = da + dsize * 3 - 1;
dend2 = dend - 23;
doff = 8 - ((mlib_addr) da & 7);
/* generate edge mask for the start point */
emask = vis_edge8(da, dend);
/* load 32 byte, convert, store 24 bytes */
s4 = sp[0]; /* initial value */
LOAD_EXTRACT_U8_43L;
if (dsize >= 8) {
if (doff == 8) {
vis_pst_8(dd0, dp++, emask);
*dp++ = dd1;
*dp++ = dd2;
}
else {
vis_alignaddr((void *)doff, 0);
vis_pst_8(vis_faligndata(dd0, dd0), dp++, emask);
*dp++ = vis_faligndata(dd0, dd1);
*dp++ = vis_faligndata(dd1, dd2);
}
}
else { /* for very small size */
if (doff == 8) {
vis_pst_8(dd0, dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(dd1, dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(dd2, dp++, emask);
}
}
}
else {
vis_alignaddr((void *)doff, 0);
vis_pst_8(vis_faligndata(dd0, dd0), dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(vis_faligndata(dd0, dd1), dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(vis_faligndata(dd1, dd2), dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(vis_faligndata(dd2, dd2), dp++, emask);
}
}
}
}
}
/* no edge handling is needed in the loop */
if (doff == 8) {
if ((mlib_addr) dp <= (mlib_addr) dend2) {
n = ((mlib_u8 *) dend2 - (mlib_u8 *) dp) / 24 + 1;
#pragma pipeloop(0)
for (i = 0; i < n; i++) {
LOAD_EXTRACT_U8_43L;
*dp++ = dd0;
*dp++ = dd1;
*dp++ = dd2;
}
}
}
else {
if ((mlib_addr) dp <= (mlib_addr) dend2) {
n = ((mlib_u8 *) dend2 - (mlib_u8 *) dp) / 24 + 1;
#pragma pipeloop(0)
for (i = 0; i < n; i++) {
LOAD_EXTRACT_U8_43L;
vis_alignaddr((void *)doff, 0);
*dp++ = vis_faligndata(dd2old, dd0);
*dp++ = vis_faligndata(dd0, dd1);
*dp++ = vis_faligndata(dd1, dd2);
}
}
}
if ((mlib_addr) dp <= (mlib_addr) dend) {
LOAD_EXTRACT_U8_43L;
emask = vis_edge8(dp, dend);
if (doff == 8) {
vis_pst_8(dd0, dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(dd1, dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(dd2, dp++, emask);
}
}
}
else {
vis_alignaddr((void *)doff, 0);
vis_pst_8(vis_faligndata(dd2old, dd0), dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(vis_faligndata(dd0, dd1), dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge8(dp, dend);
vis_pst_8(vis_faligndata(dd1, dd2), dp++, emask);
}
}
}
}
}
/***************************************************************/
#define EXTRACT_S16_43L /* shift left */ \
vis_alignaddr((void *)0, 6); \
dd0 = vis_faligndata(dd0, sd0); /* --r0g0b0 */ \
vis_alignaddr((void *)0, 2); \
dd0 = vis_faligndata(dd0, sd1); /* r0g0b0r1 */ \
\
vis_alignaddr((void *)0, 6); \
dd1 = vis_faligndata(dd1, sd1); /* --r1g1b1 */ \
vis_alignaddr((void *)0, 4); \
dd1 = vis_faligndata(dd1, sd2); /* g1b1r2g2 */ \
\
vis_alignaddr((void *)0, 6); \
dd2 = vis_faligndata(dd2, sd2); /* --r2g2b2 */ \
dd2 = vis_faligndata(dd2, sd3); /* b2r3g3b3 */
/***************************************************************/
#define LOAD_EXTRACT_S16_43L \
\
vis_alignaddr((void *)soff, 0); \
s0 = s4; \
s1 = sp[1]; \
s2 = sp[2]; \
s3 = sp[3]; \
s4 = sp[4]; \
sd0 = vis_faligndata(s0, s1); \
sd1 = vis_faligndata(s1, s2); \
sd2 = vis_faligndata(s2, s3); \
sd3 = vis_faligndata(s3, s4); \
sp += 4; \
dd2old = dd2; \
EXTRACT_S16_43L
/***************************************************************/
/*
* Either source or destination data are not 8-byte aligned.
* And size is in pixels.
*/
void mlib_v_ImageChannelExtract_S16_43L_D1(const mlib_s16 *src,
mlib_s16 *dst,
mlib_s32 dsize)
{
mlib_s16 *sa, *da; /* pointer for pixel */
mlib_s16 *dend, *dend2; /* end points in dst */
mlib_d64 *dp; /* 8-byte aligned start points in dst */
mlib_d64 *sp; /* 8-byte aligned start point in src */
mlib_d64 s0, s1, s2, s3, s4; /* 8-byte source row data */
mlib_d64 sd0, sd1, sd2, sd3; /* 8-byte source data */
mlib_d64 dd0, dd1, dd2; /* dst data */
mlib_d64 dd2old; /* the last datum of the last step */
mlib_s32 soff; /* offset of address in src */
mlib_s32 doff; /* offset of address in dst */
mlib_s32 emask; /* edge mask */
mlib_s32 i, n;
sa = (void *)src;
da = dst;
/* prepare the source address */
sp = (mlib_d64 *) ((mlib_addr) sa & (~7));
soff = ((mlib_addr) sa & 7);
/* prepare the destination addresses */
dp = (mlib_d64 *) ((mlib_addr) da & (~7));
dend = da + dsize * 3 - 1;
dend2 = dend - 11;
doff = 8 - ((mlib_addr) da & 7);
/* generate edge mask for the start point */
emask = vis_edge16(da, dend);
/* load 32 byte, convert, store 24 bytes */
s4 = sp[0]; /* initial value */
LOAD_EXTRACT_S16_43L;
if (dsize >= 4) {
if (doff == 8) {
vis_pst_16(dd0, dp++, emask);
*dp++ = dd1;
*dp++ = dd2;
}
else {
vis_alignaddr((void *)doff, 0);
vis_pst_16(vis_faligndata(dd0, dd0), dp++, emask);
*dp++ = vis_faligndata(dd0, dd1);
*dp++ = vis_faligndata(dd1, dd2);
}
}
else { /* for very small size */
if (doff == 8) {
vis_pst_16(dd0, dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge16(dp, dend);
vis_pst_16(dd1, dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge16(dp, dend);
vis_pst_16(dd2, dp++, emask);
}
}
}
else {
vis_alignaddr((void *)doff, 0);
vis_pst_16(vis_faligndata(dd0, dd0), dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge16(dp, dend);
vis_pst_16(vis_faligndata(dd0, dd1), dp++, emask);
if ((mlib_addr) dp <= (mlib_addr) dend) {
emask = vis_edge16(dp, dend);
vis_pst_16(vis_faligndata(dd1, dd2), dp++, emask);
}
}
}
}
/**代码未完, 请加载全部代码(NowJava.com).**/
关注时代Java
关注时代Java