Add a parameter for font_size_small

Author: paypur

README.md

@@ -382,6 +382,7 @@ Parameters that are enabled by default have to be explicitly disabled. These (cu
 | `font_scale_media_player`          | Change size of media player text relative to `font_size`                              |
 | `font_size=`                       | Customizable font size. Default is `24`                                               |
 | `font_size_secondary=`             | Customizable font size for secondary metrics. Default is `0.55 * font_size`, except if `no_small_font` is set, in which case the default value is `font_size`          |
+| `font_size_small=`                 | Customizable font size for small text (like units). Default is `0.55 * font_size`.    |
 | `font_size_text=`                  | Customizable font size for other text like media metadata. Default is `24`            |
 | `fps_color_change`                 | Change the FPS text color depepending on the FPS value                                |
 | `fps_color=`                       | Choose the colors that the fps changes to when `fps_color_change` is enabled. Corresponds with fps_value. Default is `b22222,fdfd09,39f900`   |
@@ -687,7 +688,7 @@ Example output:
 #### Intel notes
 - GPU temperature for `i915` requires **linux 6.13+**
 - Fan speed for `i915` requires **linux 6.12+**
-- GPU temperature and vram temperature for `xe` requires **linux 6.15+** 
+- GPU temperature and vram temperature for `xe` requires **linux 6.15+**
 - Fan speed for `xe` requires **linux 6.16+**
 - GPU usage and memory usage shows usage of current process, not total system usage (it's an issue on intel's side)
   - https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/14153

src/font.cpp

@@ -25,6 +25,10 @@ void create_fonts(ImFontAtlas* font_atlas, const overlay_params& params, ImFont*
    if (font_size_secondary > font_size || font_size_secondary < FLT_EPSILON)
       font_size_secondary = font_size;
 
+   float font_size_small = params.font_size_small;
+   if (font_size_small > font_size || font_size_small < FLT_EPSILON)
+      font_size_small = font_size;
+
    static const ImWchar default_range[] =
    {
       0x0020, 0x00FF, // Basic Latin + Latin Supplement
@@ -82,8 +86,8 @@ void create_fonts(ImFontAtlas* font_atlas, const overlay_params& params, ImFont*
       if (params.no_small_font)
          small_font = font_atlas->Fonts[0];
       else {
-         small_font = font_atlas->AddFontFromFileTTF(params.font_file.c_str(), font_size * 0.55f, nullptr, default_range);
-         font_atlas->AddFontFromMemoryCompressedBase85TTF(forkawesome_compressed_data_base85, font_size * 0.55f, &config, icon_ranges);
+         small_font = font_atlas->AddFontFromFileTTF(params.font_file.c_str(), font_size_small, nullptr, default_range);
+         font_atlas->AddFontFromMemoryCompressedBase85TTF(forkawesome_compressed_data_base85, font_size_small, &config, icon_ranges);
       }
       if (secondary_same_size) {
          secondary_font = font_atlas->Fonts[0];
@@ -98,8 +102,8 @@ void create_fonts(ImFontAtlas* font_atlas, const overlay_params& params, ImFont*
       if (params.no_small_font)
          small_font = font_atlas->Fonts[0];
       else {
-         small_font = font_atlas->AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_size * 0.55f, nullptr, default_range);
-         font_atlas->AddFontFromMemoryCompressedBase85TTF(forkawesome_compressed_data_base85, font_size * 0.55f, &config, icon_ranges);
+         small_font = font_atlas->AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_size_small, nullptr, default_range);
+         font_atlas->AddFontFromMemoryCompressedBase85TTF(forkawesome_compressed_data_base85, font_size_small, &config, icon_ranges);
       }
       if (secondary_same_size) {
          secondary_font = font_atlas->Fonts[0];

src/overlay_params.cpp

@@ -597,6 +597,7 @@ parse_ftrace(const char *str) {
 #define parse_log_interval(s) parse_unsigned(s)
 #define parse_font_size(s) parse_float(s)
 #define parse_font_size_secondary(s) parse_float(s)
+#define parse_font_size_small(s) parse_float(s)
 #define parse_font_size_text(s) parse_float(s)
 #define parse_font_scale(s) parse_float(s)
 #define parse_background_alpha(s) parse_float(s)
@@ -1110,14 +1111,19 @@ parse_overlay_config(struct overlay_params *params,
       params->font_size_secondary = params->font_size * coeff;
    }
 
+   // If small font size not set, compute it from main font_size
+   if (!params->font_size_small)
+      params->font_size_small = params->font_size * 0.55f;
+
    params->font_params_hash = get_hash(params->font_size,
                                  params->font_size_text,
                                  params->no_small_font,
                                  params->font_file,
                                  params->font_file_text,
                                  params->font_glyph_ranges,
                                  params->font_scale,
-                                 params->font_size_secondary
+                                 params->font_size_secondary,
+                                 params->font_size_small
                                 );
 
    // check if user specified an env for fps limiter instead

src/overlay_params.h

@@ -145,6 +145,7 @@ struct Tracepoint;
    OVERLAY_PARAM_CUSTOM(font_size)                   \
    OVERLAY_PARAM_CUSTOM(font_size_text)              \
    OVERLAY_PARAM_CUSTOM(font_size_secondary)         \
+   OVERLAY_PARAM_CUSTOM(font_size_small)             \
    OVERLAY_PARAM_CUSTOM(font_scale)                  \
    OVERLAY_PARAM_CUSTOM(font_scale_media_player)     \
    OVERLAY_PARAM_CUSTOM(position)                    \
@@ -323,7 +324,7 @@ struct overlay_params {
    unsigned table_columns;
    bool no_small_font;
    float font_size, font_scale;
-   float font_size_text, font_size_secondary;
+   float font_size_text, font_size_secondary, font_size_small;
    float font_scale_media_player;
    float background_alpha, alpha;
    float cellpadding_y;