added MANGOHUD_FONT to params as font_file

src/overlay.cpp

@@ -1868,11 +1868,10 @@ static void setup_swapchain_data_pipeline(struct swapchain_data *data)
    if (!font_size)
       font_size = 24;
 
-   const char* mangohud_font = getenv("MANGOHUD_FONT");
    // ImGui takes ownership of the data, no need to free it
-   if (mangohud_font && file_exists(mangohud_font)) {
-      data->font = io.Fonts->AddFontFromFileTTF(mangohud_font, font_size);
-      data->sw_stats.font1 = io.Fonts->AddFontFromFileTTF(mangohud_font, font_size * 0.55f);
+   if (!device_data->instance->params.font_file.empty() && file_exists(device_data->instance->params.font_file)) {
+      data->font = io.Fonts->AddFontFromFileTTF(device_data->instance->params.font_file.c_str(), font_size);
+      data->sw_stats.font1 = io.Fonts->AddFontFromFileTTF(device_data->instance->params.font_file.c_str(), font_size * 0.55f);
    } else {
       ImFontConfig font_cfg = ImFontConfig();
       const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();

src/overlay_params.cpp

@@ -156,6 +156,7 @@ parse_str(const char *str)
 #define parse_offset_y(s) parse_unsigned(s)
 #define parse_time_format(s) parse_str(s)
 #define parse_output_file(s) parse_str(s)
+#define parse_font_file(s) parse_str(s)
 #define parse_io_read(s) parse_unsigned(s)
 #define parse_io_write(s) parse_unsigned(s)
 

src/overlay_params.h

@@ -64,6 +64,7 @@ extern "C" {
    OVERLAY_PARAM_BOOL(gpu_core_clock)                \
    OVERLAY_PARAM_CUSTOM(fps_sampling_period)         \
    OVERLAY_PARAM_CUSTOM(output_file)                 \
+   OVERLAY_PARAM_CUSTOM(font_file)                   \
    OVERLAY_PARAM_CUSTOM(position)                    \
    OVERLAY_PARAM_CUSTOM(width)                       \
    OVERLAY_PARAM_CUSTOM(height)                      \
@@ -135,7 +136,7 @@ struct overlay_params {
    KeySym toggle_hud;
    KeySym toggle_logging;
    KeySym reload_cfg;
-   std::string time_format, output_file;
+   std::string time_format, output_file, font_file;
 };
 
 const extern char *overlay_param_names[];