From ef98dca4769208bf99eafef80e44bbd5357100c8 Mon Sep 17 00:00:00 2001
From: Kai Aoki <k-aoki@axell.co.jp>
Date: Fri, 16 Jan 2026 17:30:57 +0900
Subject: [PATCH 1/2] Perform the same console init process as llama-cli

---
 tools/mtmd/mtmd-cli.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/mtmd/mtmd-cli.cpp b/tools/mtmd/mtmd-cli.cpp
index 054c7faa6a..97e4072625 100644
--- a/tools/mtmd/mtmd-cli.cpp
+++ b/tools/mtmd/mtmd-cli.cpp
@@ -298,6 +298,9 @@ int main(int argc, char ** argv) {
 
     int n_predict = params.n_predict < 0 ? INT_MAX : params.n_predict;
 
+    console::init(params.simple_io, params.use_color);
+    atexit([]() { console::cleanup(); });
+
     // Ctrl+C handling
     {
 #if defined (__unix__) || (defined (__APPLE__) && defined (__MACH__))

From cb9588ab6884091835222780e11e6a2084dc9e70 Mon Sep 17 00:00:00 2001
From: Kai Aoki <k-aoki@axell.co.jp>
Date: Fri, 16 Jan 2026 17:30:58 +0900
Subject: [PATCH 2/2] mtmd: Fix/Add non-ASCII file path support on Windows

---
 tools/mtmd/clip.cpp        | 21 +++++++++++++++++++++
 tools/mtmd/mtmd-helper.cpp | 30 ++++++++++++++++++++++++++++--
 2 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/tools/mtmd/clip.cpp b/tools/mtmd/clip.cpp
index 9b076e0c56..d4e34ae2a9 100644
--- a/tools/mtmd/clip.cpp
+++ b/tools/mtmd/clip.cpp
@@ -24,6 +24,13 @@
 #include <array>
 #include <functional>
 
+#ifdef _WIN32
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <windows.h>
+#endif
+
 struct clip_logger_state g_logger_state = {clip_log_callback_default, NULL};
 
 //#define CLIP_DEBUG_FUNCTIONS
@@ -1837,7 +1844,21 @@ struct clip_model_loader {
         {
             std::vector<uint8_t> read_buf;
 
+#ifdef _WIN32
+            // Convert UTF-8 to UTF-16 for Windows
+            int wlen = MultiByteToWideChar(CP_UTF8, 0, fname.c_str(), -1, NULL, 0);
+            if (!wlen) {
+                throw std::runtime_error(string_format("%s: failed to convert filename to UTF-16: %s\n", __func__, fname.c_str()));
+            }
+            std::vector<wchar_t> wfname(wlen);
+            wlen = MultiByteToWideChar(CP_UTF8, 0, fname.c_str(), -1, wfname.data(), wlen);
+            if (!wlen) {
+                throw std::runtime_error(string_format("%s: failed to convert filename to UTF-16: %s\n", __func__, fname.c_str()));
+            }
+            auto fin = std::ifstream(wfname.data(), std::ios::binary);
+#else
             auto fin = std::ifstream(fname, std::ios::binary);
+#endif
             if (!fin) {
                 throw std::runtime_error(string_format("%s: failed to open %s\n", __func__, fname.c_str()));
             }
diff --git a/tools/mtmd/mtmd-helper.cpp b/tools/mtmd/mtmd-helper.cpp
index 902a4b456d..7200d68982 100644
--- a/tools/mtmd/mtmd-helper.cpp
+++ b/tools/mtmd/mtmd-helper.cpp
@@ -498,13 +498,38 @@ mtmd_bitmap * mtmd_helper_bitmap_init_from_buf(mtmd_context * ctx, const unsigne
 }
 
 mtmd_bitmap * mtmd_helper_bitmap_init_from_file(mtmd_context * ctx, const char * fname) {
-    std::vector<unsigned char> buf;
+#ifdef _WIN32
+    // Convert UTF-8 to UTF-16 for Windows
+    int wlen = MultiByteToWideChar(CP_UTF8, 0, fname, -1, NULL, 0);
+    if (!wlen) {
+        LOG_ERR("Unable to convert filename to UTF-16: %s\n", fname);
+        return nullptr;
+    }
+
+    std::vector<wchar_t> wfname(wlen);
+    wlen = MultiByteToWideChar(CP_UTF8, 0, fname, -1, wfname.data(), wlen);
+    if (!wlen) {
+        LOG_ERR("Unable to convert filename to UTF-16: %s\n", fname);
+        return nullptr;
+    }
+
+    // Open file with UTF-16 filename
+    FILE * f = _wfopen(wfname.data(), L"rb");
+    if (!f) {
+        LOG_ERR("Unable to open file %s: %s\n", fname, strerror(errno));
+        return nullptr;
+    }
+#else
+    // On non-Windows platforms, use fopen directly
     FILE * f = fopen(fname, "rb");
     if (!f) {
         LOG_ERR("Unable to open file %s: %s\n", fname, strerror(errno));
         return nullptr;
     }
+#endif
 
+    // Read file content
+    std::vector<unsigned char> buf;
     fseek(f, 0, SEEK_END);
     long file_size = ftell(f);
     fseek(f, 0, SEEK_SET);
@@ -512,8 +537,9 @@ mtmd_bitmap * mtmd_helper_bitmap_init_from_file(mtmd_context * ctx, const char *
 
     size_t n_read = fread(buf.data(), 1, file_size, f);
     fclose(f);
+
     if (n_read != (size_t)file_size) {
-        LOG_ERR("Failed to read entire file %s", fname);
+        LOG_ERR("Failed to read entire file %s\n", fname);
         return nullptr;
     }