Add XPS_INDIRECTED_FILE_ACCESS define

If defined, then the xps interpreter looks to use user
supplied xps_{fopen,ftell,fseek,getc,fread,fclose} functions
rather than gp_fopen,ftell,fseek,getc,fread,fclose.

1 files changed, 16 insertions, 0 deletions

diff --git a/xps/ghostxps.h b/xps/ghostxps.h
index 6f0158197..df6304326 100644
--- a/xps/ghostxps.h
+++ b/xps/ghostxps.h
@@ -440,3 +440,19 @@ unsigned int
 xps_crc32(unsigned int crc, unsigned char *buf, int len);
 
 int xps_high_level_pattern(xps_context_t *ctx);
+
+#ifdef XPS_INDIRECTED_FILE_ACCESS
+FILE *xps_fopen(const char *filename, const char *access);
+long xps_ftell(FILE *file);
+int xps_fseek(FILE *file, long offset, int whence);
+int xps_getc(FILE *file);
+size_t xps_fread(void *ptr, size_t size, size_t n, FILE *file);
+int xps_fclose(FILE *file);
+#else
+#define xps_fopen gp_fopen
+#define xps_ftell ftell
+#define xps_fseek fseek
+#define xps_getc getc
+#define xps_fread fread
+#define xps_fclose fclose
+#endif