feat: show state of already installed driver

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/fetcher/ReleaseAdapter.kt

@@ -143,8 +143,21 @@ class ReleaseAdapter(
             binding.containerDownloads.removeAllViews()
 
             release.artifacts.forEach { artifact ->
+                val alreadyInstalled = try {
+                    // Prefer fast check via ViewModel list; fallback to helper if needed
+                    driverViewModel.driverData.any {
+                        File(it.first).name.equals(artifact.name, ignoreCase = true)
+                    } || GpuDriverHelper.isDriverZipInstalledByName(artifact.name)
+                } catch (_: Exception) {
+                    false
+                }
+
                 val button = MaterialButton(binding.root.context).apply {
-                    text = artifact.name
+                    text = if (alreadyInstalled) {
+                        context.getString(R.string.installed_label, artifact.name)
+                    } else {
+                        artifact.name
+                    }
                     setTextAppearance(
                         com.google.android.material.R.style.TextAppearance_Material3_LabelLarge
                     )
@@ -154,7 +167,7 @@ class ReleaseAdapter(
                             com.google.android.material.R.color.m3_button_background_color_selector
                         )
                     )
-                    setIconResource(R.drawable.ic_import)
+                    setIconResource(if (alreadyInstalled) R.drawable.ic_check else R.drawable.ic_import)
                     iconTint = ColorStateList.valueOf(
                         MaterialColors.getColor(
                             this,
@@ -167,7 +180,22 @@ class ReleaseAdapter(
                         ViewGroup.LayoutParams.MATCH_PARENT,
                         ViewGroup.LayoutParams.WRAP_CONTENT
                     )
+                    isEnabled = !alreadyInstalled
                     setOnClickListener {
+                        // Double-check just before starting (race-proof)
+                        if (GpuDriverHelper.isDriverZipInstalledByName(artifact.name)) {
+                            Toast.makeText(
+                                context,
+                                context.getString(R.string.driver_already_installed),
+                                Toast.LENGTH_SHORT
+                            ).show()
+                            // Update UI to reflect installed state
+                            this.isEnabled = false
+                            this.text = context.getString(R.string.installed_label, artifact.name)
+                            this.setIconResource(R.drawable.ic_check)
+                            return@setOnClickListener
+                        }
+
                         val dialogBinding =
                             DialogProgressBinding.inflate(LayoutInflater.from(context))
                         dialogBinding.progressBar.isIndeterminate = true
@@ -233,6 +261,10 @@ class ReleaseAdapter(
                                     driverViewModel.onDriverAdded(Pair(driverPath, driverData))
 
                                     progressDialog.dismiss()
+                                    // Update button to installed state
+                                    this@apply.isEnabled = false
+                                    this@apply.text = context.getString(R.string.installed_label, artifact.name)
+                                    this@apply.setIconResource(R.drawable.ic_check)
                                     Toast.makeText(
                                         context,
                                         context.getString(

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt

@@ -53,7 +53,6 @@ enum class BooleanSetting(override val key: String) : AbstractBooleanSetting {
 
     SOC_OVERLAY_BACKGROUND("soc_overlay_background"),
     ENABLE_INPUT_OVERLAY_AUTO_HIDE("enable_input_overlay_auto_hide"),
-    RESPECT_PRESENT_INTERVAL_ZERO("respect_present_interval_zero"),
 
     PERF_OVERLAY_BACKGROUND("perf_overlay_background"),
     SHOW_PERFORMANCE_OVERLAY("show_performance_overlay"),

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt

@@ -237,13 +237,6 @@ abstract class SettingsItem(
                 override fun reset() = BooleanSetting.USE_DOCKED_MODE.reset()
             }
 
-            put(
-                SwitchSetting(
-                    BooleanSetting.RESPECT_PRESENT_INTERVAL_ZERO,
-                    titleId = R.string.respect_present_interval_zero,
-                    descriptionId = R.string.respect_present_interval_zero_description
-                )
-            )
             put(
                 SwitchSetting(
                     dockedModeSetting,

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt

@@ -460,7 +460,6 @@ class SettingsFragmentPresenter(
             add(IntSetting.RENDERER_SAMPLE_SHADING_FRACTION.key)
 
             add(HeaderSetting(R.string.veil_renderer))
-            add(BooleanSetting.RESPECT_PRESENT_INTERVAL_ZERO.key)
             add(BooleanSetting.RENDERER_EARLY_RELEASE_FENCES.key)
             add(IntSetting.DMA_ACCURACY.key)
             add(BooleanSetting.BUFFER_REORDER_DISABLE.key)

src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GpuDriverHelper.kt

@@ -238,4 +238,18 @@ object GpuDriverHelper {
             driverStorageDirectory.mkdirs()
         }
     }
+
+    /**
+     * Checks if a driver zip with the given filename is already present and valid in the
+     * internal driver storage directory. Validation requires a readable meta.json with a name.
+     */
+    fun isDriverZipInstalledByName(fileName: String): Boolean {
+        // Normalize separators in case upstream sent a path
+        val baseName = fileName.substringAfterLast('/')
+            .substringAfterLast('\\')
+        val candidate = File("$driverStoragePath$baseName")
+        if (!candidate.exists() || candidate.length() == 0L) return false
+        val metadata = getMetadataFromZip(candidate)
+        return metadata.name != null
+    }
 }

src/android/app/src/main/res/values/strings.xml

@@ -105,8 +105,6 @@
     <string name="sample_shading_fraction_description">The intensity of the sample shading pass. Higher values improve quality more but also reduce performance to a greater extent.</string>
 
     <string name="veil_renderer">Renderer</string>
-    <string name="respect_present_interval_zero">Respect present interval 0 for unlocked FPS</string>
-    <string name="respect_present_interval_zero_description">When enabled, present interval 0 will be used for games requesting unlocked FPS. This matches console behavior more closely, but may cause higher battery usage and frame pacing issues. When disabled (default), present interval 0 is capped at 120FPS to conserve battery.</string>
     <string name="renderer_early_release_fences">Release Fences Early</string>
     <string name="renderer_early_release_fences_description">Helps fix 0 FPS in games like DKCR:HD, Subnautica Below Zero and Ori 2, but may break loading or performance in Unreal Engine games.</string>
     <string name="sync_memory_operations">Sync Memory Operations</string>
@@ -663,6 +661,7 @@
     <string name="select_gpu_driver_default">Default</string>
     <string name="select_gpu_driver_error">Invalid driver selected</string>
     <string name="driver_already_installed">Driver already installed</string>
+    <string name="installed_label">%1$s (Installed)</string>
     <string name="system_gpu_driver">System GPU driver</string>
     <string name="installing_driver">Installing driver…</string>
 

src/common/settings.h

@@ -342,9 +342,6 @@ struct Values {
                                                                      Category::Renderer};
     SwitchableSetting<bool> use_asynchronous_gpu_emulation{
                                                            linkage, true, "use_asynchronous_gpu_emulation", Category::Renderer};
-    SwitchableSetting<bool> respect_present_interval_zero{
-                                                          linkage, false, "respect_present_interval_zero", Category::Renderer};
-
     SwitchableSetting<AstcDecodeMode, true> accelerate_astc{linkage,
 #ifdef ANDROID
                                                             AstcDecodeMode::Cpu,

src/core/hle/service/nvnflinger/hardware_composer.cpp

@@ -8,8 +8,6 @@
 
 #include <boost/container/small_vector.hpp>
 
-#include "common/settings.h"
-
 #include "core/hle/service/nvdrv/devices/nvdisp_disp0.h"
 #include "core/hle/service/nvnflinger/buffer_item.h"
 #include "core/hle/service/nvnflinger/buffer_item_consumer.h"
@@ -23,14 +21,6 @@ namespace {
 
 s32 NormalizeSwapInterval(f32* out_speed_scale, s32 swap_interval) {
     if (swap_interval <= 0) {
-        // If swap_interval is 0 and setting enabled, respect it as unlocked FPS
-        if (swap_interval == 0 && Settings::values.respect_present_interval_zero.GetValue()) {
-            if (out_speed_scale) {
-                *out_speed_scale = 1.0f;
-            }
-            return 0;
-        }
-
         // As an extension, treat nonpositive swap interval as speed multiplier.
         if (out_speed_scale) {
             *out_speed_scale = 2.f * static_cast<f32>(1 - swap_interval);

src/qt_common/config/shared_translation.cpp

@@ -213,11 +213,6 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QObject* parent)
         use_asynchronous_gpu_emulation,
         tr("Use asynchronous GPU emulation"),
         tr("Uses an extra CPU thread for rendering.\nThis option should always remain enabled."));
-    INSERT(
-        Settings, respect_present_interval_zero, tr("Respect present interval 0 for unlocked FPS"),
-        tr("When enabled, present interval 0 will be used for games requesting unlocked FPS.\n"
-           "This matches console behavior more closely, but may cause higher battery usage and frame pacing issues.\n"
-           "When disabled (default), present interval 0 is capped at 120FPS to conserve battery."));
     INSERT(Settings,
            nvdec_emulation,
            tr("NVDEC emulation:"),