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/* Resizer.m
*
* Copyright (C) 2005-2016 Free Software Foundation, Inc.
*
* Author: Enrico Sersale <enrico@imago.ro>
* Riccardo Mottola <rm@gnu.org>
* Date: January 2005
*
* This file is part of the GNUstep Inspector application
*
* This program 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.
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
*/
#import <Foundation/Foundation.h>
#import <AppKit/AppKit.h>
#include <math.h>
#import "Resizer.h"
#define GWDebugLog(format, args...) \
do { if (GW_DEBUG_LOG) \
NSLog(format , ## args); } while (0)
NSConnection *serverConnection;
@protocol ImageViewerProtocol
- (oneway void)setResizer:(id)anObject;
- (oneway void)imageReady:(NSDictionary *)dict;
@end
@implementation ImageResizer
+ (void)connectWithPorts:(NSArray *)portArray
{
NSAutoreleasePool *pool;
ImageResizer *serverObject;
pool = [[NSAutoreleasePool alloc] init];
serverConnection = [NSConnection connectionWithReceivePort: [portArray objectAtIndex:0]
sendPort: [portArray objectAtIndex:1]];
serverObject = [[self alloc] init];
if (serverObject)
{
[(id)[serverConnection rootProxy] setResizer:serverObject];
[serverObject release];
[[NSRunLoop currentRunLoop] run];
}
[pool release];
[NSThread exit];
}
- (void)dealloc
{
[super dealloc];
}
#define MIX_LIM 16
- (void)readImageAtPath:(NSString *)path
setSize:(NSSize)imsize
{
CREATE_AUTORELEASE_POOL(arp);
NSMutableDictionary *info = [NSMutableDictionary dictionary];
NSImage *srcImage = [[NSImage alloc] initWithContentsOfFile: path];
if (srcImage && [srcImage isValid])
{
NSData *srcData = [srcImage TIFFRepresentation];
NSBitmapImageRep *srcRep;
NSInteger srcSpp;
NSInteger bitsPerPixel;
NSInteger srcsizeW;
NSInteger srcsizeH;
NSInteger srcBytesPerPixel;
NSInteger srcBytesPerRow;
NSEnumerator *repEnum;
NSImageRep *imgRep;
repEnum = [[srcImage representations] objectEnumerator];
srcRep = nil;
imgRep = nil;
while (srcRep == nil && (imgRep = [repEnum nextObject]))
{
if ([imgRep isKindOfClass:[NSBitmapImageRep class]])
srcRep = (NSBitmapImageRep *)imgRep;
}
srcSpp = [srcRep samplesPerPixel];
bitsPerPixel = [srcRep bitsPerPixel];
srcsizeW = [srcRep pixelsWide];
srcsizeH = [srcRep pixelsHigh];
srcBytesPerPixel = [srcRep bitsPerPixel] / 8;
srcBytesPerRow = [srcRep bytesPerRow];
[info setObject: [NSNumber numberWithFloat: (float)srcsizeW] forKey: @"width"];
[info setObject: [NSNumber numberWithFloat: (float)srcsizeH] forKey: @"height"];
if (((imsize.width < srcsizeW) || (imsize.height < srcsizeH))
&& (((srcSpp == 3) && (bitsPerPixel == 24))
|| ((srcSpp == 4) && (bitsPerPixel == 32))
|| ((srcSpp == 1) && (bitsPerPixel == 8))
|| ((srcSpp == 2) && (bitsPerPixel == 16))))
{
NSInteger destSamplesPerPixel = srcSpp;
NSInteger destBytesPerRow;
NSInteger destBytesPerPixel;
NSInteger dstsizeW, dstsizeH;
float xratio, yratio;
NSBitmapImageRep *dstRep;
NSData *tiffData;
unsigned char *srcData;
unsigned char *destData;
unsigned x, y;
unsigned i;
if ((imsize.width / srcsizeW) <= (imsize.height / srcsizeH)) {
dstsizeW = floor(imsize.width + 0.5);
dstsizeH = floor(dstsizeW * srcsizeH / srcsizeW + 0.5);
} else {
dstsizeH = floor(imsize.height + 0.5);
dstsizeW= floor(dstsizeH * srcsizeW / srcsizeH + 0.5);
}
xratio = (float)srcsizeW / (float)dstsizeW;
yratio = (float)srcsizeH / (float)dstsizeH;
destSamplesPerPixel = [srcRep samplesPerPixel];
dstRep = [[NSBitmapImageRep alloc]
initWithBitmapDataPlanes:NULL
pixelsWide:dstsizeW
pixelsHigh:dstsizeH
bitsPerSample:8
samplesPerPixel:destSamplesPerPixel
hasAlpha:[srcRep hasAlpha]
isPlanar:NO
colorSpaceName:[srcRep colorSpaceName]
bytesPerRow:0
bitsPerPixel:0];
srcData = [srcRep bitmapData];
destData = [dstRep bitmapData];
destBytesPerRow = [dstRep bytesPerRow];
destBytesPerPixel = [dstRep bitsPerPixel] / 8;
for (y = 0; y < dstsizeH; y++)
for (x = 0; x < dstsizeW; x++)
for (i = 0; i < srcSpp; i++)
destData[destBytesPerRow * y + destBytesPerPixel * x + i] = srcData[srcBytesPerRow * (int)(y * yratio) + srcBytesPerPixel * (int)(x * xratio) + i];
NS_DURING
{
tiffData = [dstRep TIFFRepresentation];
}
NS_HANDLER
{
tiffData = nil;
}
NS_ENDHANDLER
if (tiffData) {
[info setObject: tiffData forKey:@"imgdata"];
}
RELEASE (dstRep);
} else {
[info setObject: srcData forKey:@"imgdata"];
}
RELEASE (srcImage);
}
[(id <ImageViewerProtocol>)[serverConnection rootProxy] imageReady: info];
RELEASE (arp);
}
@end
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