1 files changed, 64 insertions, 0 deletions
diff --git a/python/openvino/runtime/common/format_reader/bmp.cpp b/python/openvino/runtime/common/format_reader/bmp.cpp
new file mode 100644
index 0000000..240d13f
--- /dev/null
+++ b/python/openvino/runtime/common/format_reader/bmp.cpp
@@ -0,0 +1,64 @@
+// Copyright (C) 2018-2022 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+//
+
+// clang-format off
+#include <fstream>
+#include <iostream>
+
+#include "bmp.h"
+// clang-format on
+
+using namespace std;
+using namespace FormatReader;
+
+BitMap::BitMap(const string& filename) {
+    BmpHeader header;
+    BmpInfoHeader infoHeader;
+
+    ifstream input(filename, ios::binary);
+    if (!input) {
+        return;
+    }
+
+    input.read(reinterpret_cast<char*>(&header.type), 2);
+
+    if (header.type != 'M' * 256 + 'B') {
+        std::cerr << "[BMP] file is not bmp type\n";
+        return;
+    }
+
+    input.read(reinterpret_cast<char*>(&header.size), 4);
+    input.read(reinterpret_cast<char*>(&header.reserved), 4);
+    input.read(reinterpret_cast<char*>(&header.offset), 4);
+
+    input.read(reinterpret_cast<char*>(&infoHeader), sizeof(BmpInfoHeader));
+
+    bool rowsReversed = infoHeader.height < 0;
+    _width = infoHeader.width;
+    _height = abs(infoHeader.height);
+
+    if (infoHeader.bits != 24) {
+        cerr << "[BMP] 24bpp only supported. But input has:" << infoHeader.bits << "\n";
+        return;
+    }
+
+    if (infoHeader.compression != 0) {
+        cerr << "[BMP] compression not supported\n";
+    }
+
+    int padSize = _width & 3;
+    char pad[3];
+    size_t size = _width * _height * 3;
+
+    _data.reset(new unsigned char[size], std::default_delete<unsigned char[]>());
+
+    input.seekg(header.offset, ios::beg);
+
+    // reading by rows in invert vertically
+    for (uint32_t i = 0; i < _height; i++) {
+        uint32_t storeAt = rowsReversed ? i : (uint32_t)_height - 1 - i;
+        input.read(reinterpret_cast<char*>(_data.get()) + _width * 3 * storeAt, _width * 3);
+        input.read(pad, padSize);
+    }
+}