tif_config.h

来自「GIS系统支持库Geospatial Data Abstraction Libr」· C头文件 代码 · 共 42 行

/* Get the common system configuration switches from the main file. */
#include "cpl_config.h"

/* Libtiff specific switches. */

/* Support CCITT Group 3 & 4 algorithms */
#define CCITT_SUPPORT 1

/* Support LogLuv high dynamic range encoding */
#define LOGLUV_SUPPORT 1

/* Support LZW algorithm */
#define LZW_SUPPORT 1

/* Support NeXT 2-bit RLE algorithm */
#define NEXT_SUPPORT 1

/* Support Macintosh PackBits algorithm */
#define PACKBITS_SUPPORT 1

/* Support ThunderScan 4-bit RLE algorithm */
#define THUNDER_SUPPORT 1

/* Pick up YCbCr subsampling info from the JPEG data stream to support files
   lacking the tag (default enabled). */
#define CHECK_JPEG_YCBCR_SUBSAMPLING 1

/* Treat extra sample as alpha (default enabled). The RGBA interface will
   treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many
   packages produce RGBA files but don't mark the alpha properly. */
#define DEFAULT_EXTRASAMPLE_AS_ALPHA 1

/* Support strip chopping (whether or not to convert single-strip uncompressed
   images to mutiple strips of ~8Kb to reduce memory usage) */
#define STRIPCHOP_DEFAULT TIFF_STRIPCHOP

/* Enable SubIFD tag (330) support */
#define SUBIFD_SUPPORT 1