Spruced up iostats and change to bool from custom

src/overlay.cpp

@@ -1165,6 +1165,33 @@ static void compute_swapchain_display(struct swapchain_data *data)
             i++;
          }
       }
+   if (instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_read] || instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_write]){
+         auto sampling = instance_data->params.fps_sampling_period;
+         ImGui::TableNextRow();
+         if (instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_read] && !instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_write])
+            ImGui::TextColored(ImVec4(0.643, 0.569, 0.827, 1.00f), "IO RD");
+         if (instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_write] && !instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_read])
+            ImGui::TextColored(ImVec4(0.643, 0.569, 0.827, 1.00f), "IO RW");
+         if (instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_read] && instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_write])
+            ImGui::TextColored(ImVec4(0.643, 0.569, 0.827, 1.00f), "IO RD/RW");
+         
+         if (instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_read]){
+            ImGui::TableNextCell();
+            ImGui::Text("%.2f", data->io.diff.read * (1000000 / sampling));
+            ImGui::SameLine(0,1.0f);
+            ImGui::PushFont(data->font1);
+            ImGui::Text("MiB/s");
+            ImGui::PopFont();
+         }
+         if (instance_data->params.enabled[OVERLAY_PARAM_ENABLED_io_write]){
+            ImGui::TableNextCell();
+            ImGui::Text("%.2f", data->io.diff.write * (1000000 / sampling));
+            ImGui::SameLine(0,1.0f);
+            ImGui::PushFont(data->font1);
+            ImGui::Text("MiB/s");
+            ImGui::PopFont();
+         }
+      }
       if (instance_data->params.enabled[OVERLAY_PARAM_ENABLED_vram]){
          ImGui::TableNextRow();
          ImGui::TextColored(ImVec4(0.678, 0.392, 0.756, 1.00f), "VRAM");

src/overlay_params.cpp

@@ -278,6 +278,8 @@ parse_overlay_config(struct overlay_params *params,
    params->enabled[OVERLAY_PARAM_ENABLED_ram] = false;
    params->enabled[OVERLAY_PARAM_ENABLED_vram] = false;
    params->enabled[OVERLAY_PARAM_ENABLED_read_cfg] = false;
+   params->enabled[OVERLAY_PARAM_ENABLED_io_read] = false;
+   params->enabled[OVERLAY_PARAM_ENABLED_io_write] = false;
    params->fps_sampling_period = 500000; /* 500ms */
    params->width = 280;
    params->height = 140;
@@ -339,4 +341,10 @@ parse_overlay_config(struct overlay_params *params,
 
    // Command buffer gets reused and timestamps cause hangs for some reason, force off for now
    params->enabled[OVERLAY_PARAM_ENABLED_gpu_timing] = false;
+
+   if (!params->font_size)
+      params->font_size = 24;
+   //increase hud width if io read and write
+   if (params->enabled[OVERLAY_PARAM_ENABLED_io_read] && params->enabled[OVERLAY_PARAM_ENABLED_io_write])
+      params->width = 15 * params->font_size;
 }

src/overlay_params.h

@@ -52,6 +52,8 @@ extern "C" {
    OVERLAY_PARAM_BOOL(time)                          \
    OVERLAY_PARAM_BOOL(full)                          \
    OVERLAY_PARAM_BOOL(read_cfg)                      \
+   OVERLAY_PARAM_BOOL(io_read)                       \
+   OVERLAY_PARAM_BOOL(io_write)                      \
    OVERLAY_PARAM_CUSTOM(fps_sampling_period)         \
    OVERLAY_PARAM_CUSTOM(output_file)                 \
    OVERLAY_PARAM_CUSTOM(position)                    \
@@ -64,7 +66,7 @@ extern "C" {
    OVERLAY_PARAM_CUSTOM(font_size)                   \
    OVERLAY_PARAM_CUSTOM(toggle_hud)                  \
    OVERLAY_PARAM_CUSTOM(toggle_logging)              \
-   OVERLAY_PARAM_CUSTOM(refresh_config)               \
+   OVERLAY_PARAM_CUSTOM(refresh_config)              \
    OVERLAY_PARAM_CUSTOM(crosshair_size)              \
    OVERLAY_PARAM_CUSTOM(offset_x)                    \
    OVERLAY_PARAM_CUSTOM(offset_y)                    \