From c765eb86debdc06fe304511bc2edbb6f3e3d7813 Mon Sep 17 00:00:00 2001
From: Justin Weiss
Date: Sun, 13 Sep 2020 20:06:57 -0700
Subject: Add a threaded renderer

This change adds a gpulib implementation that accepts GPU commands and
runs them through a real gpulib implementation on a thread. Depending
on a setting, it can either force a sync every frame, or continue to
work until the next frame arrives.
---
 frontend/libretro.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'frontend/libretro.c')

diff --git a/frontend/libretro.c b/frontend/libretro.c
index 93bfc28..323932a 100644
--- a/frontend/libretro.c
+++ b/frontend/libretro.c
@@ -1818,6 +1818,21 @@ static void update_variables(bool in_flight)
          Config.SpuIrq = 1;
    }
 
+#ifdef THREAD_RENDERING
+   var.key = "pcsx_rearmed_gpu_thread_rendering";
+   var.value = NULL;
+
+   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+   {
+      if (strcmp(var.value, "disabled") == 0)
+         pl_rearmed_cbs.thread_rendering = THREAD_RENDERING_OFF;
+      else if (strcmp(var.value, "sync") == 0)
+         pl_rearmed_cbs.thread_rendering = THREAD_RENDERING_SYNC;
+      else if (strcmp(var.value, "async") == 0)
+         pl_rearmed_cbs.thread_rendering = THREAD_RENDERING_ASYNC;
+   }
+#endif
+
 #ifdef GPU_PEOPS
    var.value = NULL;
    var.key = "pcsx_rearmed_gpu_peops_odd_even_bit";
@@ -2031,7 +2046,7 @@ static void update_variables(bool in_flight)
             "pcsx_rearmed_gpu_unai_fast_lighting",
             "pcsx_rearmed_gpu_unai_ilace_force",
             "pcsx_rearmed_gpu_unai_pixel_skip",
-            "pcsx_rearmed_gpu_unai_scale_hires"
+            "pcsx_rearmed_gpu_unai_scale_hires",
          };
 
          option_display.visible = show_advanced_gpu_unai_settings;
-- 
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