From 4d1b19e794c3d7b65e1fe6c0e41ced57ec7e3938 Mon Sep 17 00:00:00 2001
From: Erik Kundiman <erik@megapahit.org>
Date: Sat, 6 Jan 2024 15:26:51 +0800
Subject: Revive VRAM detection on macOS

Copied code from llopenglview-objc.mm.
It would normally fail SDL2, but somehow adding a logging fixed it O.o
This is so texture compression is not enabled by default.
---
 indra/llwindow/llwindowsdl.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'indra/llwindow')

diff --git a/indra/llwindow/llwindowsdl.cpp b/indra/llwindow/llwindowsdl.cpp
index ecbbde20df..68ad988132 100644
--- a/indra/llwindow/llwindowsdl.cpp
+++ b/indra/llwindow/llwindowsdl.cpp
@@ -68,6 +68,9 @@ static bool ATIbug = false;
 
 #if LL_DARWIN
 
+#include <OpenGL/OpenGL.h>
+#include <CoreGraphics/CGDirectDisplay.h>
+
 BOOL gHiDPISupport = TRUE;
 
 namespace
@@ -671,6 +674,19 @@ BOOL LLWindowSDL::createContext(int x, int y, int width, int height, int bits, B
 	{
 		LL_INFOS() << "X11 log-parser detected " << gGLManager.mVRAM << "MB VRAM." << LL_ENDL;
 	} else
+#elif LL_DARWIN
+	CGLRendererInfoObj info = 0;
+	GLint vram_megabytes = 0;
+	int num_renderers = 0;
+	auto err = CGLQueryRendererInfo(CGDisplayIDToOpenGLDisplayMask(kCGDirectMainDisplay),
+			&info, &num_renderers);
+	if (!err) {
+		CGLDescribeRenderer(info, 0, kCGLRPVideoMemoryMegabytes, &vram_megabytes);
+		CGLDestroyRendererInfo(info);
+	} else
+		vram_megabytes = 256;
+	gGLManager.mVRAM = vram_megabytes;
+	LL_INFOS() << "Detected " << gGLManager.mVRAM << "MB VRAM." << LL_ENDL;
 # endif // LL_X11
 	{
 		/*
-- 
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