From bb65891a4a14d7a766066c398214af4e8a9ba791 Mon Sep 17 00:00:00 2001
From: Stephen Heumann <stephenheumann@gmail.com>
Date: Sat, 21 May 2016 12:35:51 -0500
Subject: [PATCH] Use shadowing and fast port optimizations for QuickDraw.

This should cause a bit of a speedup, although it wasn't really noticeable in my tests.
---
 vncdisplay.cc |  4 +---
 vncview.cc    | 10 +++-------
 vncview.rez   |  2 +-
 3 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/vncdisplay.cc b/vncdisplay.cc
index ee99fe3..ae8103b 100644
--- a/vncdisplay.cc
+++ b/vncdisplay.cc
@@ -121,7 +121,7 @@ static void ChangeResolution(int rez) {
     if (dpSpace == NULL)
         dpSpace = NewHandle(0x0300, userid(),
                         attrLocked|attrFixed|attrNoCross|attrBank, 0x00000000);
-    QDStartUp((Word) *dpSpace, (rez == 640) ? 0x87 : 0x00, 0, userid());
+    QDStartUp((Word) *dpSpace, (rez == 640) ? 0xC087 : 0xC000, 0, userid());
                     /* SCB 0x87 gives 640 mode with our custom gray palette */
     GrafOff();
     QDAuxStartUp();
@@ -359,5 +359,3 @@ void ConnectedEventLoop (void) {
         }
     }
 }
-
-
diff --git a/vncview.cc b/vncview.cc
index 9d89080..7325f55 100644
--- a/vncview.cc
+++ b/vncview.cc
@@ -122,9 +122,6 @@ static void DoAbout (void) {
 ***************************************************************/
 
 static void DoNewConnection (void) {
-    unsigned int masterSCB;
-    
-    masterSCB = GetMasterSCB();
     MakeThisCtlTarget(GetCtlHandleFromID(newConnWindow, linServer));
     ShowWindow(newConnWindow);
     SelectWindow(newConnWindow);
@@ -345,10 +342,9 @@ static void InitScreen (void) {
         0x0000, 0x0555, 0x0AAA, 0x0FFF, 0x0000, 0x0555, 0x0AAA, 0x0FFF
     };  
 
-        /* Apple menu uses color tables 1 through 6 */
-        SetColorTable(7, &gray640Colors);
-        SetAllSCBs(0x87);                   /* 640 mode with gray640Colors */
-        InitPalette();                      /* Restore Apple Menu colors */
+    /* Apple menu uses color tables 1 through 6.
+     * We set SCBs for color table 7 in StartUpTools or QDStartUp. */
+    SetColorTable(7, &gray640Colors);
 }
 
 static void Quit (void) {
diff --git a/vncview.rez b/vncview.rez
index 19c727a..27a32a2 100644
--- a/vncview.rez
+++ b/vncview.rez
@@ -73,7 +73,7 @@
 /*- Tools ------------------------------------------------------*/
 
 resource rToolStartup(1) {
-   mode640,
+   $C087, /* mode640 + fFastPortAware + fUseShadowing + color table 7 */
    {
        3, $0302,                        /* Misc Tool */
        4, $0307,                        /* QuickDraw II */