From 853f9ac3db6e8ab582f8196b2832c6a7a62db917 Mon Sep 17 00:00:00 2001
From: Apple <opensource@apple.com>
Date: Thu, 12 Jul 2001 23:08:11 +0000
Subject: [PATCH] BootX-36.tar.gz

---
 bootx.tproj/sl.subproj/display.c | 84 +++++++++++++++++++++-----------
 bootx.tproj/sl.subproj/drivers.c |  2 +-
 2 files changed, 57 insertions(+), 29 deletions(-)

diff --git a/bootx.tproj/sl.subproj/display.c b/bootx.tproj/sl.subproj/display.c
index ba03f92..000f2d6 100644
--- a/bootx.tproj/sl.subproj/display.c
+++ b/bootx.tproj/sl.subproj/display.c
@@ -48,6 +48,7 @@ struct DisplayInfo {
   CICell height;
   CICell depth;
   CICell linebytes;
+  CICell triedToOpen;
 };
 
 typedef struct DisplayInfo DisplayInfo, *DisplayInfoPtr;
@@ -102,10 +103,13 @@ static void DumpDisplaysInfo(void);
 static long OpenDisplay(long displayNum);
 static long InitDisplay(long displayNum);
 static long NetLoadDrivers(void);
-static long DiskLoadDrivers(void);
 static long LoadDisplayDriver(char *fileSpec);
 static long LookUpCLUTIndex(long index, long depth);
 
+#if 0
+static long DiskLoadDrivers(void);
+#endif
+
 static long        gNumDisplays;
 static long        gMainDisplayNum;
 static DisplayInfo gDisplays[16];
@@ -397,6 +401,13 @@ static long OpenDisplays(void)
     }
   }
   
+  // Open the rest of the displays
+  if (gOFVersion >= kOFVersion3x) {
+    for (cnt = 0; cnt < gNumDisplays; cnt++) {
+      OpenDisplay(cnt);
+    }
+  }
+  
   return 0;
 }
 
@@ -436,22 +447,36 @@ static void DumpDisplaysInfo(void)
 
 static long OpenDisplay(long displayNum)
 {
-  char   screenPath[256];
+  char   screenPath[258];
   CICell screenIH;
   long   ret;
   
+  // Only try to open a screen once.
+  if (gDisplays[displayNum].triedToOpen) {
+    return gDisplays[displayNum].screenIH != 0;
+  } else {
+    gDisplays[displayNum].triedToOpen = -1;
+  }
+  
   // Try to use mac-boot's ihandle.
   Interpret_0_1("\" _screen-ihandle\" $find if execute else 0 then",
 		&screenIH);
+  if ((screenIH != 0) &&
+      (InstanceToPackage(screenIH) != gDisplays[displayNum].screenPH)) {
+    screenIH = 0;
+  }
   
   // Try to use stdout as the screen's ihandle
-  if (gStdOutPH == gDisplays[displayNum].screenPH) screenIH = gStdOutIH;
+  if ((screenIH == 0) && (gStdOutPH == gDisplays[displayNum].screenPH)) {
+    screenIH = gStdOutIH;
+  }
   
   // Try to open the display.
   if (screenIH == 0) {
     screenPath[255] = '\0';
     ret = PackageToPath(gDisplays[displayNum].screenPH, screenPath, 255);
     if (ret != -1) {
+      strcat(screenPath, ":0");
       screenIH = Open(screenPath);
     }
   }
@@ -484,9 +509,10 @@ static long InitDisplay(long displayNum)
    " to active-package"
    " value rowbytes"
    " value depthbytes"
+   " frame-buffer-adr value this-frame-buffer-adr"
    
    " : rect-setup"      // ( adr|index x y w h -- w adr|index xy-adr h )
-   "   >r >r rowbytes * swap depthbytes * + frame-buffer-adr +"
+   "   >r >r rowbytes * swap depthbytes * + this-frame-buffer-adr +"
    "   r> depthbytes * -rot r>"
    " ;"
    
@@ -518,7 +544,7 @@ static long InitDisplay(long displayNum)
    "   3drop"
    " ;"
    
-   " frame-buffer-adr"
+   " this-frame-buffer-adr"
    " 0 to active-package"
    , display->screenPH, display->linebytes,
    display->depth / 8, &display->address);
@@ -570,29 +596,6 @@ static long NetLoadDrivers(void)
   return 0;
 }
 
-static long DiskLoadDrivers(void)
-{
-  long ret, flags, index, time;
-  char dirSpec[512], *name;
-  
-  index = 0;
-  while (1) {
-    sprintf(dirSpec, "%sprivate\\Drivers\\ppc\\IONDRV.config\\", gRootDir);
-    
-    ret = GetDirEntry(dirSpec, &index, &name, &flags, &time);
-    if (ret == -1) break;
-    
-    if (flags != kFlatFileType) continue;
-    
-    strcat(dirSpec, name);
-    ret = LoadDisplayDriver(dirSpec);
-    
-    if (ret == -1) return -1;
-  }
-  
-  return 0;
-}
-
 static long LoadDisplayDriver(char *fileSpec)
 {
   char              *pef, *currentPef, *buffer;
@@ -699,3 +702,28 @@ static long LookUpCLUTIndex(long index, long depth)
   
   return result;
 }
+
+#if 0
+static long DiskLoadDrivers(void)
+{
+  long ret, flags, index, time;
+  char dirSpec[512], *name;
+  
+  index = 0;
+  while (1) {
+    sprintf(dirSpec, "%sprivate\\Drivers\\ppc\\IONDRV.config\\", gRootDir);
+    
+    ret = GetDirEntry(dirSpec, &index, &name, &flags, &time);
+    if (ret == -1) break;
+    
+    if (flags != kFlatFileType) continue;
+    
+    strcat(dirSpec, name);
+    ret = LoadDisplayDriver(dirSpec);
+    
+    if (ret == -1) return -1;
+  }
+  
+  return 0;
+}
+#endif
diff --git a/bootx.tproj/sl.subproj/drivers.c b/bootx.tproj/sl.subproj/drivers.c
index d98d696..b14c028 100644
--- a/bootx.tproj/sl.subproj/drivers.c
+++ b/bootx.tproj/sl.subproj/drivers.c
@@ -167,7 +167,7 @@ static long FileLoadDrivers(char *dirSpec, long plugin)
     ret = GetFileInfo(dirSpec, "Extensions.mkext", &flags, &time);
     if ((ret == 0) && (flags == kFlatFileType)) {
       ret = GetFileInfo(dirSpec, "Extensions", &flags, &time2);
-      if ((ret != 0) || (flags == kDirectoryFileType) || (time > time2)) {
+      if ((ret != 0) || (flags != kDirectoryFileType) || (time > time2)) {
 	sprintf(gDriverSpec, "%sExtensions.mkext", dirSpec);
 	printf("LoadDrivers: Loading from [%s]\n", gDriverSpec);
 	if (LoadDriverMKext(gDriverSpec) == 0) return 0;
-- 
2.45.2