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//
// Copyright 2006 Johannes Hofmann <Johannes.Hofmann@gmx.de>
//
// This software may be used and distributed according to the terms
// of the GNU General Public License, incorporated herein by reference.
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "TIFFOutputImage.H"
TIFFOutputImage::TIFFOutputImage(const char *f, int b) {
bitspersample = (b==16)?16:8;
file = strdup(f);
tiff = NULL;
row = NULL;
}
TIFFOutputImage::~TIFFOutputImage() {
if (row)
free(row);
if (file)
free(file);
}
int
TIFFOutputImage::init_internal() {
if (row)
free(row);
row = NULL;
row = (unsigned char*) calloc((bitspersample / 8) * 4 * W, sizeof(char));
if (!row) {
perror("calloc");
return 1;
}
if (tiff)
TIFFClose(tiff);
if((tiff = TIFFOpen(file, "w")) == NULL){
fprintf(stderr, "can't open %s\n", file);
return 1;
}
TIFFSetField(tiff, TIFFTAG_IMAGEWIDTH, W);
TIFFSetField(tiff, TIFFTAG_IMAGELENGTH, H);
TIFFSetField(tiff, TIFFTAG_COMPRESSION, COMPRESSION_DEFLATE);
TIFFSetField(tiff, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(tiff, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
TIFFSetField(tiff, TIFFTAG_ROWSPERSTRIP, 1);
TIFFSetField(tiff, TIFFTAG_BITSPERSAMPLE, bitspersample);
TIFFSetField(tiff, TIFFTAG_SAMPLESPERPIXEL, 4);
return 0;
}
int
TIFFOutputImage::set_pixel_internal(int x, int r, int g, int b) {
if (bitspersample == 8) {
row[x*4+0] = (unsigned char) (r / 255);
row[x*4+1] = (unsigned char) (g / 255);
row[x*4+2] = (unsigned char) (b / 255);
row[x*4+3] = 255;
} else if (bitspersample == 16) {
unsigned short *row16 = (unsigned short*) row;
row16[x*4+0] = (unsigned short) r;
row16[x*4+1] = (unsigned short) g;
row16[x*4+2] = (unsigned short) b;
row16[x*4+3] = 65025;
}
return 0;
}
int
TIFFOutputImage::next_line_internal() {
TIFFWriteEncodedStrip(tiff, line - 1 , row, W * (bitspersample / 8) * 4);
memset(row, 0, (bitspersample / 8) * 4 * W * sizeof(char));
return 0;
}
int
TIFFOutputImage::done_internal() {
if (tiff)
TIFFClose(tiff);
tiff = NULL;
if (row)
free(row);
row = NULL;
return 0;
}
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