From 65fb4e67cb55f048c3ac8d0e46fc585f737c48ad Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Thu, 2 Nov 2023 10:47:15 -0500
Subject: SL-19979 Fix for frame stalls on mac with shadows enabled.  Also fix
 multihreaded GL not working on mac (thanks, Rye!)

---
 indra/llwindow/llwindowmacosx.cpp | 54 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 52 insertions(+), 2 deletions(-)

(limited to 'indra/llwindow/llwindowmacosx.cpp')

diff --git a/indra/llwindow/llwindowmacosx.cpp b/indra/llwindow/llwindowmacosx.cpp
index 8bfaeca614..b99af1ae4c 100644
--- a/indra/llwindow/llwindowmacosx.cpp
+++ b/indra/llwindow/llwindowmacosx.cpp
@@ -186,7 +186,7 @@ LLWindowMacOSX::LLWindowMacOSX(LLWindowCallbacks* callbacks,
 			return;
 		}
 
-		//start with arrow cursor
+        //start with arrow cursor
 		initCursors();
 		setCursor( UI_CURSOR_ARROW );
 		
@@ -637,6 +637,34 @@ BOOL LLWindowMacOSX::createContext(int x, int y, int width, int height, int bits
 		mGLView = createOpenGLView(mWindow, mFSAASamples, enable_vsync);
 		mContext = getCGLContextObj(mGLView);
 		gGLManager.mVRAM = getVramSize(mGLView);
+
+        if(!mPixelFormat)
+        {
+            CGLPixelFormatAttribute attribs[] =
+            {
+                kCGLPFANoRecovery,
+                kCGLPFADoubleBuffer,
+                kCGLPFAClosestPolicy,
+                kCGLPFAAccelerated,
+                kCGLPFAMultisample,
+                kCGLPFASampleBuffers, static_cast<CGLPixelFormatAttribute>((mFSAASamples > 0 ? 1 : 0)),
+                kCGLPFASamples, static_cast<CGLPixelFormatAttribute>(mFSAASamples),
+                kCGLPFAStencilSize, static_cast<CGLPixelFormatAttribute>(8),
+                kCGLPFADepthSize, static_cast<CGLPixelFormatAttribute>(24),
+                kCGLPFAAlphaSize, static_cast<CGLPixelFormatAttribute>(8),
+                kCGLPFAColorSize, static_cast<CGLPixelFormatAttribute>(24),
+                kCGLPFAOpenGLProfile, static_cast<CGLPixelFormatAttribute>(kCGLOGLPVersion_GL4_Core),
+                static_cast<CGLPixelFormatAttribute>(0)
+            };
+
+            GLint numPixelFormats;
+            CGLChoosePixelFormat (attribs, &mPixelFormat, &numPixelFormats);
+            
+            if(mPixelFormat == NULL) {
+                CGLChoosePixelFormat (attribs, &mPixelFormat, &numPixelFormats);
+            }
+        }
+
 	}
 	
 	// This sets up our view to recieve text from our non-inline text input window.
@@ -1934,7 +1962,10 @@ public:
 void* LLWindowMacOSX::createSharedContext()
 {
     sharedContext* sc = new sharedContext();
-    CGLCreateContext(mPixelFormat, mContext, &(sc->mContext));
+    CGLError err = CGLCreateContext(mPixelFormat, mContext, &(sc->mContext));
+    llassert(err == kCGLNoError);
+
+    CGLEnable(mContext, kCGLCEMPEngine);
 
     return (void *)sc;
 }
@@ -1942,6 +1973,25 @@ void* LLWindowMacOSX::createSharedContext()
 void LLWindowMacOSX::makeContextCurrent(void* context)
 {
     CGLSetCurrentContext(((sharedContext*)context)->mContext);
+
+    //enable multi-threaded OpenGL
+	if (sUseMultGL)
+	{
+		CGLError cgl_err;
+		CGLContextObj ctx = CGLGetCurrentContext();
+
+		cgl_err =  CGLEnable( ctx, kCGLCEMPEngine);
+
+		if (cgl_err != kCGLNoError )
+		{
+			LL_INFOS("GLInit") << "Multi-threaded OpenGL not available." << LL_ENDL;
+		}
+		else
+		{
+            LL_INFOS("GLInit") << "Multi-threaded OpenGL enabled." << LL_ENDL;
+		}
+	}
+	
 }
 
 void LLWindowMacOSX::destroySharedContext(void* context)
-- 
cgit v1.2.3


From 70721bae390ab49ff24022c5c8f75bc274adc8c8 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Fri, 3 Nov 2023 11:15:19 -0500
Subject: DRTVWR-559 Fix for mac build.

---
 indra/llwindow/llwindowmacosx.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'indra/llwindow/llwindowmacosx.cpp')

diff --git a/indra/llwindow/llwindowmacosx.cpp b/indra/llwindow/llwindowmacosx.cpp
index b99af1ae4c..778e5d3898 100644
--- a/indra/llwindow/llwindowmacosx.cpp
+++ b/indra/llwindow/llwindowmacosx.cpp
@@ -1962,10 +1962,12 @@ public:
 void* LLWindowMacOSX::createSharedContext()
 {
     sharedContext* sc = new sharedContext();
-    CGLError err = CGLCreateContext(mPixelFormat, mContext, &(sc->mContext));
-    llassert(err == kCGLNoError);
-
-    CGLEnable(mContext, kCGLCEMPEngine);
+    CGLCreateContext(mPixelFormat, mContext, &(sc->mContext));
+    
+    if (sUseMultGL)
+    {
+        CGLEnable(mContext, kCGLCEMPEngine);
+    }
 
     return (void *)sc;
 }
-- 
cgit v1.2.3