From 21eb0cec4ff61b472834fc19cae018780f81caa1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20D=C3=ADaz=20M=C3=A1s?= <piponazo@gmail.com>
Date: Sat, 19 Feb 2022 18:34:34 +0100
Subject: [PATCH] Fix build when EXIV2_BUILD_MESSAGES is ON

---
 src/crwimage.cpp      |  3 ---
 src/crwimage_int.cpp  |  1 +
 src/tiffimage_int.cpp |  2 ++
 src/webpimage.cpp     | 52 +++++++++++++++++++++++++++++++++++++++++--
 4 files changed, 53 insertions(+), 5 deletions(-)

diff --git a/src/crwimage.cpp b/src/crwimage.cpp
index 165f096b..5aa57a60 100644
--- a/src/crwimage.cpp
+++ b/src/crwimage.cpp
@@ -147,9 +147,6 @@ namespace Exiv2 {
         // Parse the image, starting with a CIFF header component
         CiffHeader header;
         header.read(pData, size);
-#ifdef EXIV2_DEBUG_MESSAGES
-        header.print(std::cerr);
-#endif
         header.decode(*pCrwImage);
 
         // a hack to get absolute offset of preview image inside CRW structure
diff --git a/src/crwimage_int.cpp b/src/crwimage_int.cpp
index 018f2d00..9b4afafa 100644
--- a/src/crwimage_int.cpp
+++ b/src/crwimage_int.cpp
@@ -27,6 +27,7 @@
 
 #include <cassert>
 #include <ctime>
+#include <iostream>
 
 // *****************************************************************************
 // local declarations
diff --git a/src/tiffimage_int.cpp b/src/tiffimage_int.cpp
index 36849be7..e4cb602f 100644
--- a/src/tiffimage_int.cpp
+++ b/src/tiffimage_int.cpp
@@ -26,6 +26,8 @@
 #include "tiffvisitor_int.hpp"
 #include "i18n.h"                // NLS support.
 
+#include <iostream>
+
 // Shortcuts for the newTiffBinaryArray templates.
 #define EXV_BINARY_ARRAY(arrayCfg, arrayDef) (newTiffBinaryArray0<&arrayCfg, EXV_COUNTOF(arrayDef), arrayDef>)
 #define EXV_SIMPLE_BINARY_ARRAY(arrayCfg) (newTiffBinaryArray1<&arrayCfg>)
diff --git a/src/webpimage.cpp b/src/webpimage.cpp
index f881c3f7..6562010f 100644
--- a/src/webpimage.cpp
+++ b/src/webpimage.cpp
@@ -50,6 +50,54 @@
 
 #define CHECK_BIT(var,pos) ((var) & (1<<(pos)))
 
+namespace {
+    [[maybe_unused]] std::string binaryToHex(const uint8_t* data, size_t size)
+    {
+        std::stringstream hexOutput;
+
+        auto tl = size_t(size / 16) * 16;
+        auto tl_offset = size_t(size) - tl;
+
+        for (size_t loop = 0; loop < size; loop++) {
+            if (data[loop] < 16) {
+                hexOutput << "0";
+            }
+            hexOutput << std::hex << static_cast<int>(data[loop]);
+            if ((loop % 8) == 7) {
+                hexOutput << "  ";
+            }
+            if ((loop % 16) == 15 || loop == (tl + tl_offset - 1)) {
+                int max = 15;
+                if (loop >= tl) {
+                    max = int(tl_offset) - 1;
+                    for (int offset = 0; offset < int(16 - tl_offset); offset++) {
+                        if ((offset % 8) == 7) {
+                            hexOutput << "  ";
+                        }
+                        hexOutput << "   ";
+                    }
+                }
+                hexOutput << " ";
+                for (int offset = max; offset >= 0; offset--) {
+                    if (offset == (max - 8)) {
+                        hexOutput << "  ";
+                    }
+                    uint8_t c = '.';
+                    if (data[loop - offset] >= 0x20 && data[loop - offset] <= 0x7E) {
+                        c = data[loop - offset];
+                    }
+                    hexOutput << static_cast<char>(c);
+                }
+                hexOutput << std::endl;
+            }
+        }
+
+        hexOutput << std::endl << std::endl << std::endl;
+
+        return hexOutput.str();
+    }
+}  // namespace
+
 // *****************************************************************************
 // class member definitions
 namespace Exiv2 {
@@ -688,7 +736,7 @@ namespace Exiv2 {
 
 #ifdef EXIV2_DEBUG_MESSAGES
                 std::cout << "Display Hex Dump [size:" << static_cast<unsigned long>(sizePayload) << "]" << std::endl;
-                std::cout << Internal::binaryToHex(rawExifData.c_data(), sizePayload);
+                std::cout << binaryToHex(rawExifData.c_data(), sizePayload);
 #endif
 
                 if (pos != -1) {
@@ -716,7 +764,7 @@ namespace Exiv2 {
 #ifdef EXIV2_DEBUG_MESSAGES
                     std::cout << "Display Hex Dump [size:" << static_cast<unsigned long>(payload.size()) << "]"
                               << std::endl;
-                    std::cout << Internal::binaryToHex(payload.c_data(), payload.size());
+                    std::cout << binaryToHex(payload.c_data(), payload.size());
 #endif
                 }
             } else {