edge.cpp
来自「symbian 下的helix player源代码」· C++ 代码 · 共 765 行 · 第 1/2 页
CPP
765 行
/* ***** BEGIN LICENSE BLOCK *****
* Source last modified: $Id: edge.cpp,v 1.2.32.1 2004/07/09 02:00:18 hubbe Exp $
*
* Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
*
* The contents of this file, and the files included with this file,
* are subject to the current version of the RealNetworks Public
* Source License (the "RPSL") available at
* http://www.helixcommunity.org/content/rpsl unless you have licensed
* the file under the current version of the RealNetworks Community
* Source License (the "RCSL") available at
* http://www.helixcommunity.org/content/rcsl, in which case the RCSL
* will apply. You may also obtain the license terms directly from
* RealNetworks. You may not use this file except in compliance with
* the RPSL or, if you have a valid RCSL with RealNetworks applicable
* to this file, the RCSL. Please see the applicable RPSL or RCSL for
* the rights, obligations and limitations governing use of the
* contents of the file.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL") in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your version of
* this file only under the terms of the GPL, and not to allow others
* to use your version of this file under the terms of either the RPSL
* or RCSL, indicate your decision by deleting the provisions above
* and replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient may
* use your version of this file under the terms of any one of the
* RPSL, the RCSL or the GPL.
*
* This file is part of the Helix DNA Technology. RealNetworks is the
* developer of the Original Code and owns the copyrights in the
* portions it created.
*
* This file, and the files included with this file, is distributed
* and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
* KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
* ENJOYMENT OR NON-INFRINGEMENT.
*
* Technology Compatibility Kit Test Suite(s) Location:
* http://www.helixcommunity.org/content/tck
*
* Contributor(s):
*
* ***** END LICENSE BLOCK ***** */
#include "hxtypes.h"
#include "hxcom.h"
#include "edge.h"
#include "hlxclib/math.h"
// Lookup tables to perform luma image enhancement
int soft_core_2d[LUT_LENGTH];
int clip_softcore_post[CLIP_TABLE_LENGTH];
int soft_core_2d88[LUT_LENGTH];
#define lut_soft_core_2d (soft_core_2d+OFFSET_SOFTCORE)
#define lut_soft_core_2d88 (soft_core_2d88+OFFSET_SOFTCORE)
#define lut_clip_softcore_post (clip_softcore_post+OFFSET_CLIP_SOFTCORE)
float g_fCurrentSharpness = 0.0;
INT16 g_nCurrentExpand = 0 ;
void HXEXPORT
ENTRYPOINT(SetSharpnessAdjustments)(float Sharpness, INT16 nExpand)
{
//Initialize edge enhancemnt lookup table
//adjust the Sharpness parameter input range [-1,1] to output range [0,MAX_B]
g_fCurrentSharpness = Sharpness;
g_nCurrentExpand = nExpand;
Sharpness += 1.0;
if(nExpand)
{
Sharpness *= (ZOOM_BOOST*MAX_B/2.0);
}
else
{
Sharpness *= (MAX_B/2.0);
}
Inittriangleluts(DEFT_C,DEFT_A,Sharpness);
}
void HXEXPORT
ENTRYPOINT(GetSharpnessAdjustments)(float* pSharpness, INT16* pnExpand)
{
*pSharpness = g_fCurrentSharpness;
*pnExpand = g_nCurrentExpand;
}
void HXEXPORT
ENTRYPOINT(Enhance)(UCHAR *yuv420in, INT32 inheight, INT32 inwidth, INT32 pitchSrc, float Sharpness)
{
int row, curBuf, prevBuf;
unsigned char *pLuma;
static int helper[2][2][HELPER_MAXLEN];
static int first_fl=1;
float tolerance=(float)0.1;
int tmp1;
if ((inwidth > HELPER_MAXLEN) || (inheight <16))
{
return ;
}
//if Sharpness is -1.0 (or close) do not do any edge enhancement
if(((Sharpness+1.0)<tolerance) && ((Sharpness+1.0)>-tolerance))
{
return ;
}
if(first_fl==1)
{
//Initialize constant edge enhancemnt lookup table to defaults for the first time
/*Inittriangleluts(DEFT_C,DEFT_A,DEFT_B);*/
Inittrianglelutsconst();
//initialize clipping table
Initcliplut();
first_fl=0;
}
curBuf = 0; // Point to "current" line buffer
pLuma = yuv420in; // Point to beginning of current line
DiffNonLin2Dconst( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Dconst( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
for (row = 1; row < inheight-9; row=row+8) {
//(1)
prevBuf = curBuf; // Point to previous line buffer
curBuf ^= 1; // Add 1 modulo 2
pLuma +=pitchSrc; // Advance pointer to next row
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(2)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(3)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(4)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(5)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(6)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//2edge pixels------------------
//(7)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Dconst( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Dconst( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(8)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Dconst( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Dconst( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
}
tmp1=(inheight-((inheight>>3)<<3))-1;
switch(tmp1)
{
case 6:
//(1)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
case 5:
//(2)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
case 4:
//(3)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
case 3:
//(4)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
case 2:
//(5)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
case 1:
//(6)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2D( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2D( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
case 0:
break;
}
return ;
}
void HXEXPORT
ENTRYPOINT(EnhanceUniform)(UCHAR *yuv420in, INT32 inheight, INT32 inwidth, INT32 pitchSrc, float Sharpness)
{
int row, curBuf, prevBuf;
unsigned char *pLuma;
static int helper[2][2][HELPER_MAXLEN];
static int first_fl=1;
float tolerance=(float)0.1;
int tmp1;
if ((inwidth > HELPER_MAXLEN) || (inheight <16))
{
return ;
}
//if Sharpness is -1.0 (or close) don not do any edge enhancement
if(((Sharpness+1.0)<tolerance) && ((Sharpness+1.0)>-tolerance))
{
return ;
}
if(first_fl==1)
{
//Initialize edge enhancemnt lookup table to defaults for the first time
Inittriangleluts(DEFT_C,DEFT_A,DEFT_B);
//initialize clipping table
Initcliplut();
first_fl=0;
}
curBuf = 0; // Point to "current" line buffer
pLuma = yuv420in; // Point to beginning of current line
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
for (row = 1; row < inheight-9; row=row+8) {
//(1)
prevBuf = curBuf; // Point to previous line buffer
curBuf ^= 1; // Add 1 modulo 2
pLuma +=pitchSrc; // Advance pointer to next row
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(2)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(3)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(4)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(5)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(6)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//2edge pixels------------------
//(7)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
//(8)
prevBuf = curBuf;
curBuf ^= 1;
pLuma +=pitchSrc;
DiffNonLin2Duniform( &pLuma[pitchSrc], &pLuma[1], helper[curBuf][0], inwidth-1 );
DiffNonLin2Duniform( &pLuma[pitchSrc+1], &pLuma[0], helper[curBuf][1], inwidth-1 );
Add2DHelper( (int *)helper[curBuf], (int *)helper[prevBuf], &pLuma[1], inwidth-2 );
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