From 83ca1ad8a682251b84d04fd87247d068784588f8 Mon Sep 17 00:00:00 2001
From: TellowKrinkle <tellowkrinkle@gmail.com>
Date: Wed, 2 Nov 2022 23:06:36 -0500
Subject: [PATCH] VideoBackends:Metal: Headless render support
---
Source/Core/VideoBackends/Metal/MTLMain.mm | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/Source/Core/VideoBackends/Metal/MTLMain.mm b/Source/Core/VideoBackends/Metal/MTLMain.mm
index 15cce280b0..ad646b9bf0 100644
--- a/Source/Core/VideoBackends/Metal/MTLMain.mm
+++ b/Source/Core/VideoBackends/Metal/MTLMain.mm
@@ -54,6 +54,7 @@ static bool WindowSystemTypeSupportsMetal(WindowSystemType type)
switch (type)
{
case WindowSystemType::MacOS:
+ case WindowSystemType::Headless:
return true;
default:
return false;
@@ -64,7 +65,8 @@ bool Metal::VideoBackend::Initialize(const WindowSystemInfo& wsi)
{
@autoreleasepool
{
- if (!WindowSystemTypeSupportsMetal(wsi.type) || !wsi.render_surface)
+ const bool surface_ok = wsi.type == WindowSystemType::Headless || wsi.render_surface;
+ if (!WindowSystemTypeSupportsMetal(wsi.type) || !surface_ok)
{
PanicAlertFmt("Bad WindowSystemInfo for Metal renderer.");
return false;
@@ -100,6 +102,8 @@ bool Metal::VideoBackend::Initialize(const WindowSystemInfo& wsi)
[layer setPixelFormat:MTLPixelFormatBGRA8Unorm];
CGSize size = [layer bounds].size;
float scale = [layer contentsScale];
+ if (!layer) // headless
+ scale = 1.0;
ObjectCache::Initialize(std::move(adapter));
g_state_tracker = std::make_unique<StateTracker>();