1 files changed, 62 insertions, 1 deletions

diff --git a/src/e2e.h b/src/e2e.h
index d7f7a13..167a83a 100644
--- a/src/e2e.h
+++ b/src/e2e.h
@@ -1,3 +1,64 @@
 #include <inttypes.h>
+#include "eli.h"
 
-int e2e_read(const char *start, const char *end);
\ No newline at end of file
+#define IMAGE_FUNDUS    0x02010201
+#define IMAGE_TOMOGRAM  0x02200201
+
+struct e2e_image {
+	size_t size, width, height;
+	uint32_t type;
+
+	union {
+		const uint8_t *fundus;
+		float *tomogram;
+	};
+};
+
+#define CHUNK_IMAGE  0x40000000
+
+struct e2e_chunk {
+	const char *origin;
+	const struct e2e_entry *entry;
+
+	size_t size;
+	uint32_t patient_id, study_id, series_id, slice_id, ind;
+	uint32_t type;
+
+	union {
+		struct e2e_image image;
+	};
+};
+
+struct e2e_entry {
+	const char *start;
+	size_t size;
+
+	uint32_t patient_id, study_id, series_id, slice_id, type;
+
+	_Bool has_chunk;
+	struct e2e_chunk chunk;
+};
+
+struct e2e_fundus {
+	size_t size, width, height;
+
+	uint32_t type;
+};
+
+struct e2e_directory {
+	const char *current, *next;
+
+	size_t num_entries;
+	struct e2e_entry *entries;
+
+	eli_header data_list;
+};
+
+struct e2e_data {
+	const char *start, *end;
+
+	struct e2e_directory *dirs;
+};
+
+int e2e_read(struct e2e_data *data, const char *start, const char *end);
+void e2e_destroy(struct e2e_data *data);