From c3023259e2bbdc92717e58e2263a6eecbead0a13 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E9=80=9A=E6=B4=B2?= <zhangsongcui3371@sina.com>
Date: Wed, 5 Feb 2025 14:06:06 +0800
Subject: [PATCH] GPU (macOS): use `recommendedMaxWorkingSetSize` as total GPU
 mem size

Worth noting that the value is static. It won't change even if the free global memory is smaller than the value.
---
 src/detection/gpu/gpu_apple.m | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/detection/gpu/gpu_apple.m b/src/detection/gpu/gpu_apple.m
index 95e4c3058..9334c6840 100644
--- a/src/detection/gpu/gpu_apple.m
+++ b/src/detection/gpu/gpu_apple.m
@@ -68,6 +68,9 @@ const char* ffGpuDetectMetal(FFlist* gpus)
             gpu->type = device.location == MTLDeviceLocationBuiltIn ? FF_GPU_TYPE_INTEGRATED : FF_GPU_TYPE_DISCRETE;
             gpu->index = (uint32_t) device.locationNumber;
             #endif
+
+            if (device.hasUnifiedMemory && device.recommendedMaxWorkingSetSize > 0)
+                gpu->shared.total = device.recommendedMaxWorkingSetSize;
         }
         return NULL;
     }