diff -r 6d3def73ffce -r 34637f468b2a Depth2Image.st
--- a/Depth2Image.st	Fri Apr 11 01:41:12 2003 +0200
+++ b/Depth2Image.st	Fri Apr 11 02:09:05 2003 +0200
@@ -163,7 +163,7 @@
     |depth 
      colorValues 
      form imageBits bestFormat usedDeviceDepth usedDeviceBitsPerPixel 
-     usedDevicePadding usedDeviceBytesPerRow padd n|
+     usedDevicePadding usedDeviceBytesPerRow padd|
 
     depth := aDevice depth.
 
@@ -192,16 +192,33 @@
         "/ colorMap indices by color values in the bits array
 
 %{  
+        unsigned char *srcPtr = 0;
+        unsigned char *dstPtr = 0;
+        OBJ _bytes = __INST(bytes);
+
+        if (__isByteArray(_bytes)) {
+            srcPtr = _ByteArrayInstPtr(_bytes)->ba_element;
+        } else {
+            if (__isExternalBytesLike(_bytes)) {
+                srcPtr = __externalBytesAddress(_bytes);
+            }
+        }
+        if (__isByteArray(imageBits)) {
+            dstPtr = _ByteArrayInstPtr(imageBits)->ba_element;
+        } else {
+            if (__isExternalBytesLike(imageBits)) {
+                dstPtr = __externalBytesAddress(imageBits);
+            }
+        }
+
         if (__bothSmallInteger(_INST(height), _INST(width))
          && __isArray(colorValues)
-         && __isByteArray(_INST(bytes))
-         && __isByteArray(imageBits)) {
+         && srcPtr
+         && dstPtr) {
             int r,p;
             int x, y, w, h, nPix;
             int byte, shift;
 
-            unsigned char *srcPtr = __ByteArrayInstPtr(_INST(bytes))->ba_element;
-            unsigned char *dstPtr = __ByteArrayInstPtr(imageBits)->ba_element;
             OBJ *ap = __ArrayInstPtr(colorValues)->a_element;
 
             w = __intVal(_INST(width));
@@ -253,16 +270,33 @@
             "/ colorMap indices by color values in the bits array
 
 %{       
+            unsigned char *srcPtr = 0;
+            unsigned char *dstPtr = 0;
+            OBJ _bytes = __INST(bytes);
+
+            if (__isByteArray(_bytes)) {
+                srcPtr = _ByteArrayInstPtr(_bytes)->ba_element;
+            } else {
+                if (__isExternalBytesLike(_bytes)) {
+                    srcPtr = __externalBytesAddress(_bytes);
+                }
+            }
+            if (__isByteArray(imageBits)) {
+                dstPtr = _ByteArrayInstPtr(imageBits)->ba_element;
+            } else {
+                if (__isExternalBytesLike(imageBits)) {
+                    dstPtr = __externalBytesAddress(imageBits);
+                }
+            }
+
             if (__bothSmallInteger(_INST(height), _INST(width))
              && __isArray(colorValues)
-             && __isByteArray(_INST(bytes))
-             && __isByteArray(imageBits)) {
+             && srcPtr
+             && dstPtr) {
                 int x, y, w, h, nPix;
                 int r,p;
                 int byte, shift;
 
-                unsigned char *srcPtr = __ByteArrayInstPtr(_INST(bytes))->ba_element;
-                unsigned char *dstPtr = __ByteArrayInstPtr(imageBits)->ba_element;
                 OBJ *ap = __ArrayInstPtr(colorValues)->a_element;
 
                 w = __intVal(_INST(width));
@@ -312,15 +346,32 @@
                 "/ colorMap indices by color values in the bits array
 
 %{       
+                unsigned char *srcPtr = 0;
+                unsigned char *dstPtr = 0;
+                OBJ _bytes = __INST(bytes);
+
+                if (__isByteArray(_bytes)) {
+                    srcPtr = _ByteArrayInstPtr(_bytes)->ba_element;
+                } else {
+                    if (__isExternalBytesLike(_bytes)) {
+                        srcPtr = __externalBytesAddress(_bytes);
+                    }
+                }
+                if (__isByteArray(imageBits)) {
+                    dstPtr = _ByteArrayInstPtr(imageBits)->ba_element;
+                } else {
+                    if (__isExternalBytesLike(imageBits)) {
+                        dstPtr = __externalBytesAddress(imageBits);
+                    }
+                }
+
                 if (__bothSmallInteger(_INST(height), _INST(width))
                  && __isArray(colorValues)
-                 && __isByteArray(_INST(bytes))
-                 && __isByteArray(imageBits)) {
+                 && srcPtr
+                 && dstPtr) {
                     int x, y, w, h, nPix;
                     int r,p, byte, shift;
 
-                    unsigned char *srcPtr = __ByteArrayInstPtr(_INST(bytes))->ba_element;
-                    unsigned char *dstPtr = __ByteArrayInstPtr(imageBits)->ba_element;
                     OBJ *ap = __ArrayInstPtr(colorValues)->a_element;
 
                     w = __intVal(_INST(width));
@@ -365,15 +416,32 @@
                     "/ colorMap indices by color values in the bits array
 
 %{       
+                    unsigned char *srcPtr = 0;
+                    unsigned char *dstPtr = 0;
+                    OBJ _bytes = __INST(bytes);
+
+                    if (__isByteArray(_bytes)) {
+                        srcPtr = _ByteArrayInstPtr(_bytes)->ba_element;
+                    } else {
+                        if (__isExternalBytesLike(_bytes)) {
+                            srcPtr = __externalBytesAddress(_bytes);
+                        }
+                    }
+                    if (__isByteArray(imageBits)) {
+                        dstPtr = _ByteArrayInstPtr(imageBits)->ba_element;
+                    } else {
+                        if (__isExternalBytesLike(imageBits)) {
+                            dstPtr = __externalBytesAddress(imageBits);
+                        }
+                    }
+
                     if (__bothSmallInteger(_INST(height), _INST(width))
                      && __isArray(colorValues)
-                     && __isByteArray(_INST(bytes))
-                     && __isByteArray(imageBits)) {
+                     && srcPtr
+                     && dstPtr) {
                         int x, y, w, h, nPix;
                         int r, p, byte, shift;
 
-                        unsigned char *srcPtr = __ByteArrayInstPtr(_INST(bytes))->ba_element;
-                        unsigned char *dstPtr = __ByteArrayInstPtr(imageBits)->ba_element;
                         OBJ *ap = __ArrayInstPtr(colorValues)->a_element;
 
                         w = __intVal(_INST(width));
@@ -441,10 +509,6 @@
 
     "Created: 20.10.1995 / 22:05:10 / cg"
     "Modified: 21.10.1995 / 19:30:26 / cg"
-
-
-
-
 !
 
 greyImageAsTrueColorFormOn:aDevice
@@ -942,5 +1006,5 @@
 !Depth2Image class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libview/Depth2Image.st,v 1.42 2003-04-10 14:24:35 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libview/Depth2Image.st,v 1.43 2003-04-11 00:08:58 cg Exp $'
 ! !