Bicubic filtering param

README.md

@@ -380,6 +380,7 @@ Parameters that are enabled by default have to be explicitly disabled. These (cu
 | `wine`                             | Shows current Wine or Proton version in use                                           |
 | `picmip`                           | Mip-map LoD bias. Negative values will increase texture sharpness (and aliasing). Positive values will increase texture blurriness (-16 to 16) |
 | `af`                               | Anisotropic filtering level. Improves sharpness of textures viewed at an angle (0 to 16)        |
+| `bicubic`                          | Force bicubic filtering                                                               |
 | `trilinear`                        | Force trilinear filtering                                                             |
 
 Example: `MANGOHUD_CONFIG=cpu_temp,gpu_temp,position=top-right,height=500,font_size=32`

src/overlay_params.cpp

@@ -553,6 +553,7 @@ parse_overlay_env(struct overlay_params *params,
          params->enabled[OVERLAY_PARAM_ENABLED_hud_compact] = 0;
          params->enabled[OVERLAY_PARAM_ENABLED_exec_name] = 0;
          params->enabled[OVERLAY_PARAM_ENABLED_trilinear] = 0;
+         params->enabled[OVERLAY_PARAM_ENABLED_bicubic] = 0;
       }
 #define OVERLAY_PARAM_BOOL(name)                                       \
       if (!strcmp(#name, key)) {                                       \
@@ -709,6 +710,7 @@ parse_overlay_config(struct overlay_params *params,
          params->enabled[OVERLAY_PARAM_ENABLED_hud_compact] = 0;
          params->enabled[OVERLAY_PARAM_ENABLED_exec_name] = 0;
          params->enabled[OVERLAY_PARAM_ENABLED_trilinear] = 0;
+         params->enabled[OVERLAY_PARAM_ENABLED_bicubic] = 0;
          params->options.erase("full");
       }
       for (auto& it : params->options) {

src/overlay_params.h

@@ -92,6 +92,7 @@ typedef unsigned long KeySym;
    OVERLAY_PARAM_BOOL(battery_time)                  \
    OVERLAY_PARAM_BOOL(exec_name)                     \
    OVERLAY_PARAM_BOOL(trilinear)                     \
+   OVERLAY_PARAM_BOOL(bicubic)                       \
    OVERLAY_PARAM_CUSTOM(fps_sampling_period)         \
    OVERLAY_PARAM_CUSTOM(output_folder)               \
    OVERLAY_PARAM_CUSTOM(output_file)                 \

src/vulkan.cpp

@@ -1954,6 +1954,12 @@ static VkResult overlay_CreateSampler(
       sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
    }
 
+   if (params->enabled[OVERLAY_PARAM_ENABLED_bicubic]){
+      sampler.magFilter = VK_FILTER_CUBIC_IMG;
+      sampler.minFilter = VK_FILTER_CUBIC_IMG;
+      sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
+   }
+
 	struct device_data *device_data = FIND(struct device_data, device);
 	VkResult result = device_data->vtable.CreateSampler(device, &sampler, pAllocator, pSampler);