Nearest filter param

README.md

@@ -382,6 +382,7 @@ Parameters that are enabled by default have to be explicitly disabled. These (cu
 | `af`                               | Anisotropic filtering level. Improves sharpness of textures viewed at an angle (0 to 16)        |
 | `bicubic`                          | Force bicubic filtering                                                               |
 | `trilinear`                        | Force trilinear filtering                                                             |
+| `retro`                            | Disables linear texture filtering. Makes textures look blocky                         |
 
 Example: `MANGOHUD_CONFIG=cpu_temp,gpu_temp,position=top-right,height=500,font_size=32`
 Because comma is also used as option delimiter and needs to be escaped for values with a backslash, you can use `+` like `MANGOHUD_CONFIG=fps_limit=60+30+0` instead.

src/overlay_params.cpp

@@ -554,6 +554,7 @@ parse_overlay_env(struct overlay_params *params,
          params->enabled[OVERLAY_PARAM_ENABLED_exec_name] = 0;
          params->enabled[OVERLAY_PARAM_ENABLED_trilinear] = 0;
          params->enabled[OVERLAY_PARAM_ENABLED_bicubic] = 0;
+         params->enabled[OVERLAY_PARAM_ENABLED_retro] = 0;
       }
 #define OVERLAY_PARAM_BOOL(name)                                       \
       if (!strcmp(#name, key)) {                                       \
@@ -711,6 +712,7 @@ parse_overlay_config(struct overlay_params *params,
          params->enabled[OVERLAY_PARAM_ENABLED_exec_name] = 0;
          params->enabled[OVERLAY_PARAM_ENABLED_trilinear] = 0;
          params->enabled[OVERLAY_PARAM_ENABLED_bicubic] = 0;
+         params->enabled[OVERLAY_PARAM_ENABLED_retro] = 0;
          params->options.erase("full");
       }
       for (auto& it : params->options) {

src/overlay_params.h

@@ -93,6 +93,7 @@ typedef unsigned long KeySym;
    OVERLAY_PARAM_BOOL(exec_name)                     \
    OVERLAY_PARAM_BOOL(trilinear)                     \
    OVERLAY_PARAM_BOOL(bicubic)                       \
+   OVERLAY_PARAM_BOOL(retro)                         \
    OVERLAY_PARAM_CUSTOM(fps_sampling_period)         \
    OVERLAY_PARAM_CUSTOM(output_folder)               \
    OVERLAY_PARAM_CUSTOM(output_file)                 \

src/vulkan.cpp

@@ -1960,6 +1960,12 @@ static VkResult overlay_CreateSampler(
       sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
    }
 
+   if (params->enabled[OVERLAY_PARAM_ENABLED_retro]){
+      sampler.magFilter = VK_FILTER_NEAREST;
+      sampler.minFilter = VK_FILTER_NEAREST;
+      sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
+   }
+
 	struct device_data *device_data = FIND(struct device_data, device);
 	VkResult result = device_data->vtable.CreateSampler(device, &sampler, pAllocator, pSampler);