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DCMPix.m
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/*=========================================================================
Program: OsiriX
Copyright (c) OsiriX Team
All rights reserved.
Distributed under GNU - LGPL
See http://www.osirix-viewer.com/copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
=========================================================================*/
#import <DCMPix.h>
#import "DicomImage.h"
#import "DicomSeries.h"
#import "DicomStudy.h"
#import "Papyrus3/Papyrus3.h"
#import "Papyrus3/PapyGlobalVar3.h"
#import <AVFoundation/AVFoundation.h>
#import <OsiriX/DCM.h>
#import <OsiriX/DCMAbstractSyntaxUID.h>
#import "BrowserController.h"
#import "BrowserControllerDCMTKCategory.h"
#import "PluginManager.h"
#import "ROI.h"
#import "SRAnnotation.h"
#import "Notifications.h"
#import "N2Debug.h"
#import "NSUserDefaults+OsiriX.h"
#import "DicomDatabase.h"
#import "DicomFileDCMTKCategory.h"
#include <signal.h>
#import "DCMTKFileFormat.h"
#ifdef OSIRIX_VIEWER
#import "NSThread+N2.h"
#import "ThreadsManager.h"
#import "DCMUSRegion.h" // US Regions
#endif
#import "DCMWaveform.h"
#import <DCMView.h>
#import "ThickSlabController.h"
#import "dicomFile.h"
#import "PluginFileFormatDecoder.h"
#include "tiffio.h"
#ifndef OSIRIX_LIGHT
#include "FVTiff.h"
#endif
#include "Analyze.h"
#ifndef DECOMPRESS_APP
#include "nifti1.h"
#include "nifti1_io.h"
#endif
#include <Accelerate/Accelerate.h>
#include "AppController.h"
#include "NSFileManager+N2.h"
#import "Point3D.h"
#import "math.h"
#import "altivecFunctions.h"
#import "DICOMToNSString.h"
#ifdef STATIC_DICOM_LIB
#define PREVIEWSIZE 512
#else
#define PREVIEWSIZE 68
#endif
BOOL gUserDefaultsSet = NO;
BOOL gUseShutter = NO;
BOOL gDisplayDICOMOverlays = YES;
BOOL gUseVOILUT = NO;
BOOL gUseJPEGColorSpace = NO;
BOOL gUSEPAPYRUSDCMPIX = YES;
int gSUVAcquisitionTimeField = 0;
NSMutableDictionary *gCUSTOM_IMAGE_ANNOTATIONS = nil;
BOOL runOsiriXInProtectedMode = NO;
BOOL quicktimeRunning = NO;
NSLock *quicktimeThreadLock = nil;
static NSMutableDictionary *cachedPapyGroups = nil;
static NSMutableArray *nonLinearWLWWThreads = nil;
static NSMutableArray *minmaxThreads = nil;
static NSConditionLock *processorsLock = nil;
static NSConditionLock *purgeCacheLock = nil;
static float deg2rad = M_PI / 180.0;
struct NSPointInt
{
long x;
long y;
};
typedef struct NSPointInt NSPointInt;
NSString* filenameWithDate( NSString *inputfile);
extern NSRecursiveLock *PapyrusLock;
extern short Altivec;
void PapyrusLockFunction( int lock)
{
if( lock)
[PapyrusLock lock];
else
[PapyrusLock unlock];
}
void ConvertFloatToNative (float *theFloat)
{
unsigned int *myLongPtr;
myLongPtr = (unsigned int *)theFloat;
*myLongPtr = EndianU32_LtoN(*myLongPtr);
}
void SwitchFloat (float *theFloat)
{
unsigned int *myLongPtr;
myLongPtr = (unsigned int *)theFloat;
*myLongPtr = Endian32_Swap(*myLongPtr);
}
//void ConvertDoubleToNative (double *theFloat)
//{
// unsigned long long *myLongPtr;
//
// myLongPtr = (unsigned long long*)theFloat;
// *myLongPtr = EndianU64_LtoN(*myLongPtr);
//}
//uint64_t MyGetTime( void)
//{
// AbsoluteTime theTime = UpTime();
//
// return ((uint64_t*) &theTime)[0];
//}
//
//double MySubtractTime( uint64_t endTime, uint64_t startTime)
//{
// union
// {
// Nanoseconds ns;
// u_int64_t i;
// }time;
//
// time.ns = AbsoluteToNanoseconds( SubAbsoluteFromAbsolute( ((AbsoluteTime*) &endTime)[0], ((AbsoluteTime*) &startTime)[0]));
// return time.i * 1e-9;
//}
unsigned char* CreateIconFrom16 (float* image, unsigned char*icon, int height, int width, int iconWidth, long wl, long ww, BOOL isRGB)
// create an icon from an 12 or 16 bit image
{
float ratio;
long i, j;
long line, destWidth, destHeight;
long value;
long min, max, diff;
min = wl - ww / 2; //if (min < 0) min = 0;
max = wl + ww / 2;
diff = max - min;
if( diff <= 0)
{
diff = 1;
max = min + 1;
}
if( (float) width / PREVIEWSIZE > (float) height / PREVIEWSIZE) ratio = (float) width / PREVIEWSIZE;
else ratio = (float) height / PREVIEWSIZE;
destWidth = (float) width / ratio;
destHeight = (float) height / ratio;
// allocate the memory for the icon
if( diff)
{
unsigned char *iconPtr = nil;
if( isRGB)
{
int x;
unsigned char *rgbImage = (unsigned char*) image;
int rowBytes = iconWidth*4;
for (i = 0; i < destHeight; i++) // lines
{
line = width * (long) (ratio * i)*4 ; //ARGB
iconPtr = icon + rowBytes*i;
for (j = 0; j < destWidth; j++) // columns
{
for (x = 1; x< 4;x++, iconPtr++) // Dont take alpha channel
{
value = *( rgbImage + line + x + (long) (j * ratio)*4); //ARGB
if( value > max) value = max;
else if( value < min) value = min;
*iconPtr = (((value-min) * 255L) / diff);
}
}
}
}
else
{
int rowBytes = iconWidth;
for (i = 0; i < destHeight; i++) // lines
{
line = width * (long) (ratio * i) ;
iconPtr = icon + rowBytes*i;
for (j = 0; j < destWidth; j++, iconPtr++) // columns
{
value = *( image + line + (long) (j * ratio));
if( value > max) value = max;
else if( value < min) value = min;
*iconPtr = (((value-min) * 255L) / diff);
}
}
}
}
return icon;
}
// POLY CLIP
#define MAXVERTICAL 100000
#define INIT_DELTAS dx=V2.x-V1.x; dy=V2.y-V1.y;
#define INIT_CLIP INIT_DELTAS if(dx)m=dy/dx;
static inline void CLIP_Left(NSPointInt *Polygon, long *count, NSPointInt V1, NSPointInt V2, NSPointInt UpLeft)
{
float dx,dy, m=1;
INIT_CLIP
// ************OK************
if ( (V1.x>=UpLeft.x) && (V2.x>=UpLeft.x))
Polygon[(*count)++]=V2;
// *********LEAVING**********
if ( (V1.x>=UpLeft.x) && (V2.x<UpLeft.x))
{
Polygon[(*count)].x=UpLeft.x;
Polygon[(*count)++].y=V1.y+m*(UpLeft.x-V1.x);
}
// ********ENTERING*********
if ( (V1.x<UpLeft.x) && (V2.x>=UpLeft.x))
{
Polygon[(*count)].x=UpLeft.x;
Polygon[(*count)++].y=V1.y+m*(UpLeft.x-V1.x);
Polygon[(*count)++]=V2;
}
}
static inline void CLIP_Right(NSPointInt *Polygon, long *count, NSPointInt V1, NSPointInt V2, NSPointInt DownRight)
{
float dx,dy, m=1;
INIT_CLIP
// ************OK************
if ( (V1.x<=DownRight.x) && (V2.x<=DownRight.x))
Polygon[(*count)++]=V2;
// *********LEAVING**********
if ( (V1.x<=DownRight.x) && (V2.x>DownRight.x))
{
Polygon[(*count)].x=DownRight.x;
Polygon[(*count)++].y=V1.y+m*(DownRight.x-V1.x);
}
// ********ENTERING*********
if ( (V1.x>DownRight.x) && (V2.x<=DownRight.x))
{
Polygon[(*count)].x=DownRight.x;
Polygon[(*count)++].y=V1.y+m*(DownRight.x-V1.x);
Polygon[(*count)++]=V2;
}
}
/*
=================
CLIP_Top
=================
*/
static inline void CLIP_Top(NSPointInt *Polygon,long *count, NSPointInt V1,NSPointInt V2, NSPointInt UpLeft)
{
float dx,dy, m=1;
INIT_CLIP
// ************OK************
if ( (V1.y>=UpLeft.y) && (V2.y>=UpLeft.y))
Polygon[(*count)++]=V2;
// *********LEAVING**********
if ( (V1.y>=UpLeft.y) && (V2.y<UpLeft.y))
{
if(dx)
Polygon[(*count)].x=V1.x+(UpLeft.y-V1.y)/m;
else
Polygon[(*count)].x=V1.x;
Polygon[(*count)++].y=UpLeft.y;
}
// ********ENTERING*********
if ( (V1.y<UpLeft.y) && (V2.y>=UpLeft.y))
{
if(dx)
Polygon[(*count)].x=V1.x+(UpLeft.y-V1.y)/m;
else
Polygon[(*count)].x=V1.x;
Polygon[(*count)++].y=UpLeft.y;
Polygon[(*count)++]=V2;
}
}
static inline void CLIP_Bottom(NSPointInt *Polygon,long *count, NSPointInt V1,NSPointInt V2, NSPointInt DownRight)
{
float dx,dy, m=1;
INIT_CLIP
// ************OK************
if ( (V1.y<=DownRight.y) && (V2.y<=DownRight.y))
Polygon[(*count)++]=V2;
// *********LEAVING**********
if ( (V1.y<=DownRight.y) && (V2.y>DownRight.y))
{
if(dx)
Polygon[(*count)].x=V1.x+(DownRight.y-V1.y)/m;
else
Polygon[(*count)].x=V1.x;
Polygon[(*count)++].y=DownRight.y;
}
// ********ENTERING*********
if ( (V1.y>DownRight.y) && (V2.y<=DownRight.y))
{
if(dx)
Polygon[(*count)].x=V1.x+(DownRight.y-V1.y)/m;
else
Polygon[(*count)].x=V1.x;
Polygon[(*count)++].y=DownRight.y;
Polygon[(*count)++]=V2;
}
}
static NSPointInt *TmpPoly = nil;
static NSString *CLIP_PolygonSync = @"CLIP_PolygonSync";
void CLIP_Polygon(NSPointInt *inPoly, long inCount, NSPointInt *outPoly, long *outCount, NSPoint clipMin, NSPoint clipMax)
{
@synchronized( CLIP_PolygonSync)
{
int d;
if( TmpPoly == nil)
TmpPoly = malloc( MAXVERTICAL * sizeof( NSPointInt));
long TmpCount;
NSPointInt DownRight, UpLeft;
UpLeft.x = clipMin.x;
UpLeft.y = clipMin.y;
DownRight.x = clipMax.x-1;
DownRight.y = clipMax.y-1;
*outCount = 0;
TmpCount=0;
for( int v=0; v<inCount; v++)
{
d=v+1;
if(d==inCount)d=0;
CLIP_Left( TmpPoly, &TmpCount, inPoly[v],inPoly[d], UpLeft);
// if( v > MAXVERTICAL || d > MAXVERTICAL)
// NSLog( @"( v || d > MAXVERTICAL)");
}
for( int v=0; v<TmpCount; v++)
{
d=v+1;
if(d==TmpCount)d=0;
CLIP_Right(outPoly, outCount, TmpPoly[v],TmpPoly[d], DownRight);
// if( v > MAXVERTICAL || d > MAXVERTICAL)
// NSLog( @"( v || d > MAXVERTICAL)");
}
TmpCount=0;
for( int v=0; v<*outCount; v++)
{
d=v+1;
if(d==*outCount)d=0;
CLIP_Top( TmpPoly, &TmpCount, outPoly[v],outPoly[d], UpLeft);
// if( v > MAXVERTICAL || d > MAXVERTICAL)
// NSLog( @"( v || d > MAXVERTICAL)");
}
*outCount=0;
for( int v=0; v<TmpCount; v++)
{
d=v+1;
if(d==TmpCount)d=0;
CLIP_Bottom(outPoly, outCount, TmpPoly[v],TmpPoly[d], DownRight);
// if( v > MAXVERTICAL || d > MAXVERTICAL)
// NSLog( @"( v || d > MAXVERTICAL)");
}
}
}
// POLY FILL
struct edge
{
struct edge *next;
long yTop, yBot;
long xNowWhole, xNowNum, xNowDen, xNowDir;
long xNowNumStep;
};
static inline long sgn( long x)
{
if( x > 0) return 1;
else if( x < 0) return -1;
return 0;
}
static inline void FillEdges( NSPointInt *p, long no, struct edge *edgeTable[])
{
int n = no;
memset( edgeTable, 0, sizeof(char*) * MAXVERTICAL);
for ( int i = 0; i < n; i++)
{
NSPointInt *p1, *p2, *p3;
struct edge *e;
p1 = &p[ i];
p2 = &p[ (i + 1) % n];
if (p1->y == p2->y)
continue; /* Skip horiz. edges */
/* Find next vertex not level with p2 */
for ( int j = (i + 2) % n; ; j = (j + 1) % n)
{
p3 = &p[ j];
if (p2->y != p3->y)
break;
}
e = malloc( sizeof( struct edge));
e->xNowNumStep = ABS(p1->x - p2->x);
if ( p2->y > p1->y)
{
e->yTop = p1->y;
e->yBot = p2->y;
e->xNowWhole = p1->x;
e->xNowDir = sgn( p2->x - p1->x);
e->xNowDen = e->yBot - e->yTop;
e->xNowNum = (e->xNowDen >> 1);
if ( p3->y > p2->y)
e->yBot--;
}
else
{
e->yTop = p2->y;
e->yBot = p1->y;
e->xNowWhole = p2->x;
e->xNowDir = sgn((p1->x) - (p2->x));
e->xNowDen = e->yBot - e->yTop;
e->xNowNum = (e->xNowDen >> 1);
if ((p3->y) < (p2->y))
{
e->yTop++;
e->xNowNum += e->xNowNumStep;
while (e->xNowNum >= e->xNowDen)
{
e->xNowWhole += e->xNowDir;
e->xNowNum -= e->xNowDen;
}
}
}
e->next = edgeTable[ e->yTop];
edgeTable[ e->yTop] = e;
}
}
/*
* UpdateActive first removes any edges which curY has entirely
* passed by. The removed edges are freed.
* It then removes any edges from the edge table at curY and
* places them on the active list.
*/
struct edge *UpdateActive( struct edge *active, struct edge *edgeTable[], long curY)
{
struct edge *e, **ep;
for (ep = &active, e = *ep; e != NULL; e = *ep)
if (e->yBot < curY)
{
*ep = e->next;
free(e);
} else
ep = &e->next;
*ep = edgeTable[ curY];
return active;
}
/*
* DrawRuns first uses an insertion sort to order the X
* coordinates of each active edge. It updates the X coordinates
* for each edge as it does this.
* Then it draws a run between each pair of coordinates,
* using the specified fill pattern.
*
* This routine is very slow and it would not be that
* difficult to speed it way up.
*/
static DCMPix **restoreImageCache = nil;
static inline void DrawRuns( struct edge *active,
long curY,
float *pix,
long w,
long h,
float min,
float max,
BOOL outside,
float newVal,
BOOL addition,
BOOL RGB,
BOOL compute,
float *imax,
float *imin,
long *count,
float *itotal,
float *idev,
float imean,
long orientation,
long stackNo, // Only if X/Y orientation : for 3D VR scissor in any direction
BOOL restore,
float *values,
float *locations)
{
long xCoords[ 4096];
float *curPix = nil, val = 0, temp = 0;
long numCoords = 0;
long start, end, ims = w * h;
float *ivalues = nil;
float *ilocations = nil;
if( compute && orientation == 2) // standard orientation
{
ivalues = values;
ilocations = locations;
}
for ( struct edge *e = active; e != NULL; e = e->next)
{
long i;
for ( i = numCoords; i > 0 &&
xCoords[i - 1] > e->xNowWhole; i--)
xCoords[i] = xCoords[i - 1];
xCoords[i] = e->xNowWhole;
numCoords++;
e->xNowNum += e->xNowNumStep;
while (e->xNowNum >= e->xNowDen)
{
e->xNowWhole += e->xNowDir;
e->xNowNum -= e->xNowDen;
}
}
if (numCoords % 2) /* Protect from degenerate polygons */
xCoords[numCoords] = xCoords[numCoords - 1], numCoords++;
for( long i = 0; i < numCoords; i += 2)
{
// ** COMPUTE
if( compute)
{
start = xCoords[i]; if( start < 0) start = 0; if( start >= w) start = w;
end = xCoords[i + 1]; if( end < 0) end = 0; if( end >= w) end = w;
switch( orientation)
{
case 1: curPix = &pix[ (curY * ims) + start + stackNo *w]; break;
case 0: curPix = &pix[ (curY * ims) + (start * w) + stackNo]; break;
case 2: curPix = &pix[ (curY * w) + start]; break;
}
long x = end - start;
long xx = 0;
if( RGB == NO)
{
while( x-- >= 0)
{
val = *curPix;
if( imax && val > *imax) *imax = val;
if( imin && val < *imin) *imin = val;
if( itotal) *itotal += val;
if( count) (*count)++;
if( values) (*ivalues++) = val;
if( ilocations)
{
(*ilocations++) = start + xx++;
(*ilocations++) = curY;
}
if( idev)
{
temp = imean - val;
temp *= temp;
*idev += temp;
}
if( orientation) curPix ++;
else curPix += w;
}
}
else
{
while( x-- >= 0)
{
unsigned char* curPixRGB = (unsigned char*) curPix;
val = (curPixRGB[ 1] + curPixRGB[ 2] + curPixRGB[ 3]) / 3.;
if( imax && val > *imax) *imax = val;
if( imin && val < *imin) *imin = val;
if( itotal) *itotal += val;
if( count) (*count)++;
if( values) (*ivalues++) = val;
if( ilocations)
{
(*ilocations++) = start + xx++;
(*ilocations++) = w;
}
if( idev)
{
temp = imean - val;
temp *= temp;
*idev += temp;
}
if( orientation) curPix ++;
else curPix += w;
}
}
}
// ** DRAW
else
{
if( outside) // OUTSIDE
{
if( i == 0)
{
start = 0; if( start < 0) start = 0; if( start >= w) start = w;
end = xCoords[i]; if( end < 0) end = 0; if( end >= w) end = w;
i--;
}
else
{
start = xCoords[i]+1; if( start < 0) start = 0; if( start >= w) start = w;
if( i == numCoords-1)
{
end = w;
}
else end = xCoords[i+1];
if( end < 0) end = 0; if( end >= w) end = w;
}
if( RGB == NO)
{
switch( orientation)
{
case 1: curPix = &pix[ (curY * ims) + start + stackNo *w]; break;
case 0: curPix = &pix[ (curY * ims) + (start * w) + stackNo]; break;
case 2: curPix = &pix[ (curY * w) + start]; break;
}
long x = end - start;
if( addition)
{
while( x-- > 0)
{
if( *curPix >= min && *curPix <= max) *curPix += newVal;
if( orientation) curPix ++;
else curPix += w;
}
}
else
{
while( x-- > 0)
{
if( *curPix >= min && *curPix <= max) *curPix = newVal;
if( orientation) curPix ++;
else curPix += w;
}
}
}
else
{
switch( orientation)
{
case 1: curPix = &pix[ (curY * ims) + start + stackNo *w]; break;
case 0: curPix = &pix[ (curY * ims) + (start * w) + stackNo]; break;
case 2: curPix = &pix[ (curY * w) + start]; break;
}
long x = end - start;
while( x-- > 0)
{
unsigned char* rgbPtr = (unsigned char*) curPix;
if( addition)
{
if( rgbPtr[ 1] >= min && rgbPtr[ 1] <= max) rgbPtr[ 1] += newVal;
if( rgbPtr[ 2] >= min && rgbPtr[ 2] <= max) rgbPtr[ 2] += newVal;
if( rgbPtr[ 3] >= min && rgbPtr[ 3] <= max) rgbPtr[ 3] += newVal;
}
else
{
if( rgbPtr[ 1] >= min && rgbPtr[ 1] <= max) rgbPtr[ 1] = newVal;
if( rgbPtr[ 2] >= min && rgbPtr[ 2] <= max) rgbPtr[ 2] = newVal;
if( rgbPtr[ 3] >= min && rgbPtr[ 3] <= max) rgbPtr[ 3] = newVal;
}
if( orientation) curPix ++;
else curPix += w;
}
}
}
else // INSIDE
{
float *restorePtr = nil;
start = xCoords[i]; if( start < 0) start = 0; if( start >= w) start = w;
end = xCoords[i + 1]; if( end < 0) end = 0; if( end >= w) end = w;
switch( orientation)
{
case 0: curPix = &pix[ (curY * ims) + (start * w) + stackNo]; if( restore && restoreImageCache) restorePtr = &[restoreImageCache[ curY] fImage][(start * w) + stackNo]; break;
case 1: curPix = &pix[ (curY * ims) + start + stackNo *w]; if( restore && restoreImageCache) restorePtr = &[restoreImageCache[ curY] fImage][start + stackNo *w]; break;
case 2: curPix = &pix[ (curY * w) + start]; if( restore && restoreImageCache) restorePtr = &[restoreImageCache[ stackNo] fImage][(curY * w) + start]; break;
}
long x = end - start;
if( x >= 0)
{
if( restore && restoreImageCache)
{
if( RGB == NO)
{
if( orientation)
{
while( x-- >= 0)
{
*curPix = *restorePtr;
curPix ++;
restorePtr ++;
}
}
else
{
while( x-- >= 0)
{
*curPix = *restorePtr;
curPix += w;
restorePtr += w;
}
}
}
else
{
if( orientation)
{
while( x-- >= 0)
{
unsigned char* rgbPtr = (unsigned char*) curPix;
rgbPtr[ 1] = restorePtr[ 1];
rgbPtr[ 2] = restorePtr[ 2];
rgbPtr[ 3] = restorePtr[ 3];
curPix ++;
restorePtr ++;
}
}
else
{
while( x-- >= 0)
{
unsigned char* rgbPtr = (unsigned char*) curPix;
rgbPtr[ 1] = restorePtr[ 1];
rgbPtr[ 2] = restorePtr[ 2];
rgbPtr[ 3] = restorePtr[ 3];
curPix += w;
restorePtr += w;
}
}
}
}
else
{
if( RGB == NO)
{
if( addition)
{
while( x-- >= 0)
{
if( *curPix >= min && *curPix <= max) *curPix += newVal;
if( orientation) curPix ++;
else curPix += w;
}
}
else
{
while( x-- >= 0)
{
if( *curPix >= min && *curPix <= max) *curPix = newVal;
if( orientation) curPix ++;
else curPix += w;
}
}
}
else
{
while( x-- >= 0)
{
unsigned char* rgbPtr = (unsigned char*) curPix;
if( addition)
{
if( rgbPtr[ 1] >= min && rgbPtr[ 1] <= max) rgbPtr[ 1] += newVal;
if( rgbPtr[ 2] >= min && rgbPtr[ 2] <= max) rgbPtr[ 2] += newVal;
if( rgbPtr[ 3] >= min && rgbPtr[ 3] <= max) rgbPtr[ 3] += newVal;
}
else
{
if( rgbPtr[ 1] >= min && rgbPtr[ 1] <= max) rgbPtr[ 1] = newVal;
if( rgbPtr[ 2] >= min && rgbPtr[ 2] <= max) rgbPtr[ 2] = newVal;
if( rgbPtr[ 3] >= min && rgbPtr[ 3] <= max) rgbPtr[ 3] = newVal;
}
if( orientation) curPix ++;
else curPix += w;
}
}
}
}
}
}
}
}
void ras_FillPolygon( NSPointInt *p,
long no,
float *pix,
long w,
long h,
long s,
float min,
float max,
BOOL outside,
float newVal,
BOOL addition,
BOOL RGB,
BOOL compute,
float *imax,
float *imin,
long *count,
float *itotal,
float *idev,
float imean,
long orientation,
long stackNo,
BOOL restore,
float *values,
float *locations)
{
struct edge **edgeTable = (struct edge **) malloc( MAXVERTICAL * sizeof( struct edge *));
struct edge *active = nil;
long curY = 0;
// float test;
//
// test = -FLT_MAX;
// if( test != -FLT_MAX)
// NSLog( @"******* test != -FLT_MAX");
//
// test = FLT_MAX;
// if( test != FLT_MAX)
// NSLog( @"******* test != FLT_MAX");
if( edgeTable == nil)
return;
FillEdges(p, no, edgeTable);
for ( curY = 0; edgeTable[ curY] == NULL; curY++)
{
if (curY == MAXVERTICAL - 1)
{
free( edgeTable);
return; /* No edges in polygon */
}
}
float *ivalues = nil;
float *ilocations = nil;
if( count)
{
ivalues = values;
ilocations = locations;
}
for (active = NULL; (active = UpdateActive(active, edgeTable, curY)) != NULL; curY++)
{
if( active)
{
DrawRuns(active, curY, pix, w, h, min, max, outside, newVal, addition, RGB, compute, imax, imin, count, itotal, idev, imean, orientation, stackNo, restore, ivalues, ilocations);
if( ivalues)
ivalues = values + *count;
if( ilocations)
ilocations = locations + *count * 2;
}
}
free( edgeTable);
}
static inline long pnpoly( NSPoint *p, long count, float x, float y)
{
long c = 0;
for ( int i = 0, j = count-1; i < count; j = i++)
{
if ((((p[i].y <= y) && (y < p[j].y)) ||
((p[j].y <= y) && (y < p[i].y))) &&
(x < (p[j].x - p[i].x) * (y - p[i].y) / (p[j].y - p[i].y) + p[i].x))
c = !c;
}
return c;
}
inline long pnpolyInt( struct NSPointInt *p, long count, long x, long y)
{
long c = 0;
for ( int i = 0, j = count-1; i < count; j = i++)
{
if ((((p[i].y <= y) && (y < p[j].y)) ||
((p[j].y <= y) && (y < p[i].y))) &&
(x < (p[j].x - p[i].x) * (y - p[i].y) / (p[j].y - p[i].y) + p[i].x))
c = !c;
}
return c;
}
#define SetPixel(x,y,c) FrameBuffer[y*WIDTH+x]=c;
long BresLine(int Ax, int Ay, int Bx, int By,long **xBuffer, long **yBuffer)
{
long size = 0;
long maxVal = (abs(Ax - Bx)+abs(Ay - By)) + 2;
*xBuffer = malloc( maxVal*sizeof(long));
*yBuffer = malloc( maxVal*sizeof(long));
int dX = abs(Bx-Ax); // store the change in X and Y of the line endpoints
int dY = abs(By-Ay);
//------------------------------------------------------------------------
// DETERMINE "DIRECTIONS" TO INCREMENT X AND Y (REGARDLESS OF DECISION)
//------------------------------------------------------------------------
int Xincr, Yincr;
if (Ax > Bx) { Xincr=-1; } else { Xincr=1; } // which direction in X?
if (Ay > By) { Yincr=-1; } else { Yincr=1; } // which direction in Y?
//------------------------------------------------------------------------