video_core: add texture filtering (#5017)

video_core: add texture filtering

src/citra/config.cpp

@@ -128,6 +128,10 @@ void Config::ReadValues() {
         static_cast<u16>(sdl2_config->GetInteger("Renderer", "frame_limit", 100));
     Settings::values.use_vsync_new =
         static_cast<u16>(sdl2_config->GetInteger("Renderer", "use_vsync_new", 1));
+    Settings::values.texture_filter_name =
+        sdl2_config->GetString("Renderer", "texture_filter_name", "none");
+    Settings::values.texture_filter_factor =
+        sdl2_config->GetInteger("Renderer", "texture_filter_factor", 1);
 
     Settings::values.render_3d = static_cast<Settings::StereoRenderOption>(
         sdl2_config->GetInteger("Renderer", "render_3d", 0));

src/citra/default_ini.h

@@ -126,6 +126,10 @@ use_disk_shader_cache =
 # factor for the 3DS resolution
 resolution_factor =
 
+# Texture filter name and scale factor
+texture_filter_name =
+texture_filter_factor =
+
 # Turns on the frame limiter, which will limit frames output to the target game speed
 # 0: Off, 1: On (default)
 use_frame_limit =