libs/pdflib/p_filter.c

22 pdf_ASCIIHexEncode(PDF *p, PDF_data_source *src)
31     if (src->init)
32 	src->init(p, src);
34     while (src->fill(p, src))
36 	for (data=src->next_byte, i=src->bytes_available; i > 0; i--, data++)
47     if (src->terminate)
48 	src->terminate(p, src);
58 pdf_data_source_file_init(PDF *p, PDF_data_source *src)
62     src->buffer_length = FILE_BUFSIZE;
63     src->buffer_start = (pdc_byte *)
64 	pdc_malloc(p->pdc, src->buffer_length, "pdf_data_source_file_init");
66     fp = pdf_fopen(p, (const char *) src->private_data, "embedded ",
72     if (src->offset)
73 	pdc_fseek(fp, src->offset, SEEK_SET);
75     src->private_data = (void *) fp;
76     src->total = (long) 0;
80 pdf_data_source_file_fill(PDF *p, PDF_data_source *src)
85     if (src->length != (long) 0 && src->total + FILE_BUFSIZE > src->length)
86 	bytes_needed = (size_t) (src->length - src->total);
90     src->next_byte = src->buffer_start;
91     src->bytes_available = pdc_fread(src->buffer_start, 1,
92                         bytes_needed, (pdc_file *) (src->private_data));
94     src->total += (long) src->bytes_available;
96     if (src->bytes_available == 0)
103 pdf_data_source_file_terminate(PDF *p, PDF_data_source *src)
105     pdc_free(p->pdc, (void *) src->buffer_start);
106     pdc_fclose((pdc_file *) src->private_data);
108     if (src->length != (long) 0 && src->total != src->length)
115 pdf_data_source_buf_fill(PDF *p, PDF_data_source *src)
119     if (src->next_byte == NULL) {
120 	src->next_byte		= src->buffer_start;
121 	src->bytes_available	= src->buffer_length;
128 /* copy the complete contents of src to a stream */
130 pdf_copy_stream(PDF *p, PDF_data_source *src, pdc_bool compress)
137     if (src->init)
138 	src->init(p, src);
142     while (src->fill(p, src))
143 	pdc_write(p->out, src->next_byte, src->bytes_available);
147     if (src->terminate)
148 	src->terminate(p, src);