C++ (Cpp) TIFFWriteRawTileの例

コード例 #1

ファイル: thumbnail.c プロジェクト: OpenInkpot-archive/iplinux-libtiff

static int
cpTiles(TIFF* in, TIFF* out)
{
    tsize_t bufsize = TIFFTileSize(in);
    unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize);

    if (buf) {
	ttile_t t, nt = TIFFNumberOfTiles(in);
	tsize_t *bytecounts;

	TIFFGetField(in, TIFFTAG_TILEBYTECOUNTS, &bytecounts);
	for (t = 0; t < nt; t++) {
	    if (bytecounts[t] > bufsize) {
		buf = (unsigned char *)_TIFFrealloc(buf, bytecounts[t]);
		if (!buf)
		    goto bad;
		bufsize = bytecounts[t];
	    }
	    if (TIFFReadRawTile(in, t, buf, bytecounts[t]) < 0 ||
		TIFFWriteRawTile(out, t, buf, bytecounts[t]) < 0) {
		_TIFFfree(buf);
		return 0;
	    }
	}
	_TIFFfree(buf);
	return 1;
    }

bad:
    TIFFError(TIFFFileName(in),
		  "Can't allocate space for tile buffer.");
	return (0);
}

コード例 #2

ファイル: tiffsplit.c プロジェクト: AppZone-India/Android-ImageMagick

static int
cpTiles(TIFF* in, TIFF* out)
{
	tsize_t bufsize = TIFFTileSize(in);
	unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize);

	if (buf) {
		ttile_t t, nt = TIFFNumberOfTiles(in);
		uint32 *bytecounts;

		if (!TIFFGetField(in, TIFFTAG_TILEBYTECOUNTS, &bytecounts)) {
			fprintf(stderr, "tiffsplit: tile byte counts are missing\n");
			return (0);
		}
		for (t = 0; t < nt; t++) {
			if (bytecounts[t] > (uint32) bufsize) {
				buf = (unsigned char *)_TIFFrealloc(buf, bytecounts[t]);
				if (!buf)
					return (0);
				bufsize = bytecounts[t];
			}
			if (TIFFReadRawTile(in, t, buf, bytecounts[t]) < 0 ||
			    TIFFWriteRawTile(out, t, buf, bytecounts[t]) < 0) {
				_TIFFfree(buf);
				return (0);
			}
		}
		_TIFFfree(buf);
		return (1);
	}
	return (0);
}

コード例 #3

ファイル: tiffsplit.c プロジェクト: arnaudgelas/libtiff-4.0

static int
cpTiles(TIFF* in, TIFF* out)
{
	tmsize_t bufsize = TIFFTileSize(in);
	unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize);

	if (buf) {
		ttile_t t, nt = TIFFNumberOfTiles(in);
		uint64 *bytecounts;

		TIFFGetField(in, TIFFTAG_TILEBYTECOUNTS, &bytecounts);
		for (t = 0; t < nt; t++) {
			if (bytecounts[t] > (uint64) bufsize) {
				buf = (unsigned char *)_TIFFrealloc(buf, (tmsize_t)bytecounts[t]);
				if (!buf)
					return (0);
				bufsize = (tmsize_t)bytecounts[t];
			}
			if (TIFFReadRawTile(in, t, buf, (tmsize_t)bytecounts[t]) < 0 ||
			    TIFFWriteRawTile(out, t, buf, (tmsize_t)bytecounts[t]) < 0) {
				_TIFFfree(buf);
				return (0);
			}
		}
		_TIFFfree(buf);
		return (1);
	}
	return (0);
}