Merge pull request #1 from MaroonBrian1928/preemptiveframes

Add preemptive frames in ES
knulli-cfw · Jun 13, 2024 · fa96cb4 · fa96cb4
2 parents c24a316 + fe0701a
commit fa96cb4
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Showing 2 changed files with 14 additions and 3 deletions.
diff --git a/...atocera/core/batocera-configgen/configgen/configgen/generators/libretro/libretroConfig.py b/...atocera/core/batocera-configgen/configgen/configgen/generators/libretro/libretroConfig.py
@@ -710,11 +710,15 @@ def update_handheld_config(guid, name, board):
 
     # Run-ahead option (latency reduction)
     retroarchConfig['run_ahead_enabled'] = 'false'
+    retroarchConfig['preemptive_frames_enable'] = 'false'
     retroarchConfig['run_ahead_frames'] = '0'
     retroarchConfig['run_ahead_secondary_instance'] = 'false'
     if system.isOptSet('runahead') and int(system.config['runahead']) >0:
        if (not system.name in systemNoRunahead):
-          retroarchConfig['run_ahead_enabled'] = 'true'
+          if system.isOptSet('preemptiveframes') and system.getOptBoolean('preemptiveframes') == True:
+            retroarchConfig['preemptive_frames_enable'] = 'true'
+          else:
+            retroarchConfig['run_ahead_enabled'] = 'true'
           retroarchConfig['run_ahead_frames'] = system.config['runahead']
           if system.isOptSet('secondinstance') and system.getOptBoolean('secondinstance') == True:
               retroarchConfig['run_ahead_secondary_instance'] = 'true'

diff --git a/package/batocera/emulationstation/batocera-es-system/es_features.yml b/package/batocera/emulationstation/batocera-es-system/es_features.yml
@@ -207,6 +207,13 @@ shared:
       choices:
         "On": 1
         "Off": 0
+    preemptiveframes:
+      submenu:     LATENCY REDUCTION
+      prompt:      USE PRE-EMPTIVE FRAMES
+      description: Use preemptive frames instead of run-ahead. Only runs ahead when controller state changes.
+      choices:
+        "On": "true"
+        "Off": "false"
     video_frame_delay_auto:
       submenu:     LATENCY REDUCTION
       prompt:      AUTOMATIC FRAME DELAY
@@ -322,10 +329,10 @@ shared:
         "hidden": "hidden"
 
 global:
-  shared: [powermode, tdp, videomode, ratio, shaderset, smooth, integerscale, bezel, bezel_stretch, hud, hud_corner, bezel.tattoo, bezel.tattoo_corner, bezel.tattoo_file, bezel.resize_tattoo, ai_service_enabled, ai_target_lang, ai_service_url, ai_service_pause, rewind, runahead, secondinstance, video_frame_delay_auto, vrr_runloop_enable, video_threaded, rumble_gain]
+  shared: [powermode, tdp, videomode, ratio, shaderset, smooth, integerscale, bezel, bezel_stretch, hud, hud_corner, bezel.tattoo, bezel.tattoo_corner, bezel.tattoo_file, bezel.resize_tattoo, ai_service_enabled, ai_target_lang, ai_service_url, ai_service_pause, rewind, runahead, preemptiveframes, secondinstance, video_frame_delay_auto, vrr_runloop_enable, video_threaded, rumble_gain]
 
 libretro:
-  shared: [powermode, tdp, videomode, ratio, shaderset, smooth, integerscale, bezel, bezel_stretch, hud, hud_corner, bezel.tattoo, bezel.tattoo_corner, bezel.tattoo_file, bezel.resize_tattoo, ai_service_enabled, ai_target_lang, ai_service_url, ai_service_pause, runahead, secondinstance, video_frame_delay_auto, vrr_runloop_enable, video_threaded, rumble_gain, audio_volume, bordersmode]
+  shared: [powermode, tdp, videomode, ratio, shaderset, smooth, integerscale, bezel, bezel_stretch, hud, hud_corner, bezel.tattoo, bezel.tattoo_corner, bezel.tattoo_file, bezel.resize_tattoo, ai_service_enabled, ai_target_lang, ai_service_url, ai_service_pause, runahead, preemptiveframes, secondinstance, video_frame_delay_auto, vrr_runloop_enable, video_threaded, rumble_gain, audio_volume, bordersmode]
   cfeatures:
     gfxbackend:
       archs_include: [x86, x86_64, bcm2711, bcm2712]