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authorTor Andersson <tor@ghostscript.com>2005-03-30 08:30:22 +0200
committerTor Andersson <tor@ghostscript.com>2005-03-30 08:30:22 +0200
commitee154f16bd09a43359967f7e7b86c3677c09461d (patch)
tree08896cfa9ff55e05bfe7855965c620d45115d4d5 /filter/filer.c
parent460ad7040d67a4a93a153f98095ff952a2b15d37 (diff)
downloadmupdf-ee154f16bd09a43359967f7e7b86c3677c09461d.tar.xz
rename part 1 -- files
Diffstat (limited to 'filter/filer.c')
-rw-r--r--filter/filer.c252
1 files changed, 0 insertions, 252 deletions
diff --git a/filter/filer.c b/filter/filer.c
deleted file mode 100644
index a63a7dd2..00000000
--- a/filter/filer.c
+++ /dev/null
@@ -1,252 +0,0 @@
-#include <fitz.h>
-
-static int doread(fz_buffer *b, int fd)
-{
- int n = read(fd, b->wp, b->ep - b->wp);
- if (n == -1)
- return -1;
- if (n == 0)
- b->eof = 1;
- b->wp += n;
- return n;
-}
-
-int fz_producedata(fz_file *f)
-{
- fz_error *reason;
- int produced;
- int n;
-
- assert(f->mode == FZ_READ);
- assert(f->error == nil);
-
- if (!f->filter)
- {
- fz_rewindbuffer(f->out);
- n = doread(f->out, f->fd);
- if (n < 0) {
- f->error = fz_throw("ioerror in read: %s", strerror(errno));
- return -1;
- }
- return 0;
- }
-
- produced = 0;
-
- while (1)
- {
- reason = fz_process(f->filter, f->in, f->out);
-
- if (f->filter->produced)
- produced = 1;
-
- if (reason == fz_ioneedin)
- {
- if (f->in->eof) {
- f->error = fz_throw("ioerror: premature eof in filter");
- return -1;
- }
-
- /* no space to produce, rewind or grow */
- if (f->in->wp == f->in->ep)
- {
- if (f->in->rp > f->in->bp)
- f->error = fz_rewindbuffer(f->in);
- else
- f->error = fz_growbuffer(f->in);
- if (f->error)
- return -1;
- }
-
- /* then fill with more input */
- n = doread(f->in, f->fd);
- if (n < 0) {
- f->error = fz_throw("ioerror in read: %s", strerror(errno));
- return -1;
- }
-
- if (produced)
- return 0;
- }
-
- else if (reason == fz_ioneedout)
- {
- if (produced)
- return 0;
-
- /* need more outspace, and produced no data */
- if (f->out->rp > f->out->bp)
- f->error = fz_rewindbuffer(f->out);
- else
- f->error = fz_growbuffer(f->out);
- if (f->error)
- return -1;
- }
-
- else if (reason == fz_iodone)
- return 0;
-
- else {
- f->error = reason;
- return -1;
- }
- }
-}
-
-int
-fz_peekbyte(fz_file *f)
-{
- if (f->out->rp == f->out->wp)
- {
- if (f->out->eof) return EOF;
- if (fz_producedata(f)) return EOF;
- }
-
- if (f->out->rp < f->out->wp)
- return *f->out->rp;
-
- return EOF;
-}
-
-int
-fz_readbyte(fz_file *f)
-{
- if (f->out->rp == f->out->wp)
- {
- if (f->out->eof) return EOF;
- if (fz_producedata(f)) return EOF;
- }
-
- if (f->out->rp < f->out->wp)
- return *f->out->rp++;
-
- return EOF;
-}
-
-int
-fz_read(fz_file *f, unsigned char *buf, int n)
-{
- int i = 0;
-
- while (i < n)
- {
- while (f->out->rp < f->out->wp && i < n)
- buf[i++] = *f->out->rp ++;
-
- if (f->out->rp == f->out->wp)
- {
- if (f->out->eof) return i;
- if (fz_producedata(f) < 0) return -1;
- }
- }
-
- return i;
-}
-
-int
-fz_readline(fz_file *f, char *buf, int n)
-{
- int c = EOF;
- char *s = buf;
-
- while (n > 1)
- {
- c = fz_readbyte(f);
- if (c == EOF)
- break;
- if (c == '\r') {
- c = fz_peekbyte(f);
- if (c == '\n')
- c = fz_readbyte(f);
- break;
- }
- if (c == '\n')
- break;
- *s++ = c;
- n--;
- }
- if (n)
- *s = '\0';
- return s - buf;
-}
-
-/*
- * Utility function to consume contents of file stream into
- * a freshly allocated buffer; realloced and trimmed to size.
- */
-
-enum { CHUNKSIZE = 1024 * 32 };
-
-fz_error *
-fz_readfile(fz_buffer **bufp, fz_file *file)
-{
- fz_buffer *real;
- unsigned char *newbuf;
- unsigned char *buf;
- int len;
- int pos;
- int n;
-
- *bufp = nil;
-
- len = 0;
- pos = 0;
- buf = nil;
-
- while (1)
- {
- if (len - pos == 0)
- {
- len += CHUNKSIZE;
- newbuf = fz_realloc(buf, len);
- if (!newbuf)
- {
- fz_free(buf);
- return fz_outofmem;
- }
- buf = newbuf;
- }
-
- n = fz_read(file, buf + pos, len - pos);
-
- if (n < 0)
- {
- fz_free(buf);
- return fz_ferror(file);
- }
-
- pos += n;
-
- if (n < CHUNKSIZE)
- {
- if (pos > 0)
- {
- newbuf = fz_realloc(buf, pos);
- if (!newbuf)
- {
- fz_free(buf);
- return fz_outofmem;
- }
- }
- else newbuf = buf;
-
- real = *bufp = fz_malloc(sizeof(fz_buffer));
- if (!real)
- {
- fz_free(newbuf);
- return fz_outofmem;
- }
-
- real->refs = 1;
- real->ownsdata = 1;
- real->bp = buf;
- real->rp = buf;
- real->wp = buf + pos;
- real->ep = buf + pos;
- real->eof = 1;
-
- return nil;
- }
- }
-}
-