Update HN data structure.

1 files changed, 134 insertions, 0 deletions

diff --git a/src/cnki_hn.c b/src/cnki_hn.c
new file mode 100644
index 0000000..978aa30
--- /dev/null
+++ b/src/cnki_hn.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2020, yzrh <yzrh@noema.org>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <stdlib.h>
+
+#include "cnki.h"
+#include "pdf.h"
+#include "pdf_cnki.h"
+
+int
+cnki_hn(cnki_t **param)
+{
+	if (*param == NULL)
+		return 1;
+
+	if ((*param)->stat > 0)
+		printf("Begin 'HN' conversion\n");
+
+	if ((*param)->file_stat->page > 0)
+		(*param)->object_hn = malloc(sizeof(object_hn_t));
+	else
+		return 1;
+
+	if ((*param)->object_hn == NULL)
+		return 1;
+
+	if ((*param)->stat > 1) {
+		printf("Loading page(s)\n");
+		printf("\t%8s\t%8s\t%6s\t%4s\t%6s\t%6s\t%4s\t%8s\t%8s\n",
+			"address",
+			"text",
+			"length",
+			"page",
+			"zero",
+			"#",
+			"code",
+			"address",
+			"image");
+	}
+
+	object_hn_t *ptr = (*param)->object_hn;
+	for (int i = 0; i < (*param)->file_stat->page; i++) {
+		fread(&ptr->address, 4, 1, (*param)->fp_i);
+		fread(&ptr->text_size, 4, 1, (*param)->fp_i);
+		fread(&ptr->image_length, 2, 1, (*param)->fp_i);
+		fread(&ptr->page, 2, 1, (*param)->fp_i);
+		fread(&ptr->zero, 8, 1, (*param)->fp_i);
+
+		ptr->text = NULL;
+		ptr->image_data = NULL;
+		ptr->next = NULL;
+
+		if (i < (*param)->file_stat->page - 1) {
+			ptr->next = malloc(sizeof(object_hn_t));
+
+			if (ptr->next == NULL)
+				return 1;
+		}
+
+		ptr = ptr->next;
+	}
+
+	ptr = (*param)->object_hn;
+	while (ptr != NULL) {
+		ptr->text = malloc(ptr->text_size);
+
+		if (ptr->text == NULL)
+			return 1;
+
+		fseek((*param)->fp_i, ptr->address, SEEK_SET);
+		fread(ptr->text, ptr->text_size, 1, (*param)->fp_i);
+
+		if ((*param)->stat > 1)
+			printf("\t%08x\t%8d\t%6d\t%4d\t{%d, %d}",
+				ptr->address,
+				ptr->text_size,
+				ptr->image_length,
+				ptr->page,
+				ptr->zero[0],
+				ptr->zero[1]);
+
+		ptr->image_data = malloc(ptr->image_length * sizeof(hn_image_t));
+
+		if (ptr->image_data == NULL)
+			return 1;
+
+		for (int i = 0; i < ptr->image_length; i++) {
+			fread(&ptr->image_data[i].format, 4, 1, (*param)->fp_i);
+			fread(&ptr->image_data[i].address, 4, 1, (*param)->fp_i);
+			fread(&ptr->image_data[i].size, 4, 1, (*param)->fp_i);
+		}
+
+		for (int i = 0; i < ptr->image_length; i++) {
+			ptr->image_data[i].image = malloc(ptr->image_data[i].size);
+
+			if (ptr->image_data[i].image == NULL)
+				return 1;
+
+			fseek((*param)->fp_i, ptr->image_data[i].address, SEEK_SET);
+			fread(ptr->image_data[i].image,
+				ptr->image_data[i].size, 1,
+				(*param)->fp_i);
+
+			if ((*param)->stat > 1)
+				printf("\t%6d\t%4d\t%08x\t%8d\n",
+					i,
+					ptr->image_data[i].format,
+					ptr->image_data[i].address,
+					ptr->image_data[i].size);
+		}
+
+		ptr = ptr->next;
+	}
+
+	if ((*param)->stat > 1)
+		printf("Loaded %d page(s)\n", (*param)->file_stat->page);
+
+	if ((*param)->stat > 1)
+		printf("Creating PDF object(s)\n");
+
+	pdf_object_t *pdf = NULL;
+
+	if (pdf_obj_create(&pdf) != 0)
+		return 1;
+
+	if ((*param)->stat > 0)
+		printf("Conversion ended\n");
+
+	/* TODO: Finish me please :) */
+	return 1;
+}