src/macosx/native/sun/awt/ImageSurfaceData.m

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@@ -51,14 +51,10 @@
 #define XOR_ALPHA_CUTOFF 128
 
 // for vImage framework headers
 #include <Accelerate/Accelerate.h>
 
-
-// private Quartz routines needed here
-CG_EXTERN void CGContextSetCTM(CGContextRef ref, CGAffineTransform tx);
-
 static ContextInfo sDefaultContextInfo[sun_java2d_OSXOffScreenSurfaceData_TYPE_3BYTE_RGB+1] =
 {
     {YES,    YES,    8,        4,        0,        kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,    NULL},    // TYPE_CUSTOM            // special case
     {YES,    YES,    8,        4,        0,        kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Host,        NULL},    // TYPE_INT_RGB
     {YES,    YES,    8,        4,        0,        kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host,    NULL},    // TYPE_INT_ARGB

@@ -940,11 +936,10 @@
     }
 
     // intitalize the context to match the Java coordinate system
 
     // BG, since the context is created above, we can just concat
-    //CGContextSetCTM(qsdo->cgRef, CGAffineTransformMake(1, 0, 0, -1, 0, isdo->height));
     CGContextConcatCTM(qsdo->cgRef, CGAffineTransformMake(1, 0, 0, -1, 0, isdo->height));
 
     CGContextSaveGState(qsdo->cgRef); // this will make sure we don't go pass device context settings
     CGContextSaveGState(qsdo->cgRef); // this will put user settings on top, used by LazyStateManagement code
     qsdo->newContext = YES;

@@ -1112,11 +1107,14 @@
                 }
 
                 if (qsdo->cgRef != NULL)
                 {
                     CGContextSaveGState(qsdo->cgRef);
-                    CGContextSetCTM(qsdo->cgRef, CGAffineTransformMake(1, 0, 0, 1, 0, 0));
+                    CGAffineTransform currCTM = CGContextGetCTM(qsdo->cgRef);
+                    CGAffineTransform inverse = CGAffineTransformInvert(currCTM);
+                    CGContextConcatCTM(qsdo->cgRef, inverse);
+                    CGContextConcatCTM(qsdo->cgRef, CGAffineTransformMake(1, 0, 0, 1, 0, 0));
                     CGContextSetBlendMode(qsdo->cgRef, kCGBlendModeCopy);
                     CGContextSetAlpha(qsdo->cgRef, 1.0f);
                     CGContextDrawImage(qsdo->cgRef, CGRectMake(0, 0, width, height), javaImg);
                     CGContextFlush(qsdo->cgRef);
                     CGContextRestoreGState(qsdo->cgRef);