merge master

1 files changed, 64 insertions, 0 deletions

diff --git a/tests/imageutils-macosx.cc b/tests/imageutils-macosx.cc
new file mode 100644
index 0000000..404052f
--- /dev/null
+++ b/tests/imageutils-macosx.cc
@@ -0,0 +1,64 @@
+#include <ApplicationServices/ApplicationServices.h>
+#include <iostream>
+
+bool write_png(const char *filename, unsigned char *pixels, int width, int height)
+{
+  size_t rowBytes = width * 4;
+//  CGColorSpaceRef colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
+	CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
+  CGBitmapInfo bitmapInfo = kCGImageAlphaNoneSkipLast | kCGBitmapByteOrder32Big; // BGRA
+  int bitsPerComponent = 8;
+  CGContextRef contextRef = CGBitmapContextCreate(pixels, width, height, 
+																									bitsPerComponent, rowBytes, 
+                                                  colorSpace, bitmapInfo);
+  if (!contextRef) {
+    std::cerr << "Unable to create CGContextRef.";
+    return false;
+  }
+
+  CGImageRef imageRef = CGBitmapContextCreateImage(contextRef);
+  if (!imageRef) {
+    std::cerr <<  "Unable to create CGImageRef.";
+    return false;
+  }
+
+  CFStringRef fname = CFStringCreateWithCString(kCFAllocatorDefault, filename, kCFStringEncodingUTF8);
+  CFURLRef fileURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
+                                                   fname, kCFURLPOSIXPathStyle, false);
+  if (!fileURL) {
+    std::cerr << "Unable to create file URL ref.";
+    return false;
+  }
+
+  CGDataConsumerRef dataconsumer = CGDataConsumerCreateWithURL(fileURL);
+  CFIndex                 fileImageIndex = 1;
+  CFMutableDictionaryRef  fileDict       = NULL;
+  CFStringRef             fileUTType     = kUTTypePNG;
+  // Create an image destination opaque reference for authoring an image file
+  CGImageDestinationRef imageDest = CGImageDestinationCreateWithDataConsumer(dataconsumer,
+                                                                             fileUTType, 
+                                                                             fileImageIndex, 
+                                                                             fileDict);
+  if (!imageDest) {
+    std::cerr <<  "Unable to create CGImageDestinationRef.";
+    return false;
+  }
+
+  CFIndex capacity = 1;
+  CFMutableDictionaryRef imageProps = 
+    CFDictionaryCreateMutable(kCFAllocatorDefault, 
+                              capacity,
+                              &kCFTypeDictionaryKeyCallBacks,
+                              &kCFTypeDictionaryValueCallBacks);
+  CGImageDestinationAddImage(imageDest, imageRef, imageProps);
+  CGImageDestinationFinalize(imageDest);
+
+  CFRelease(imageDest);
+  CFRelease(dataconsumer);
+  CFRelease(fileURL);
+  CFRelease(fname);
+  CFRelease(imageProps);
+  CGColorSpaceRelease(colorSpace);
+  CGImageRelease(imageRef);
+  return true;
+}