windows needs binary-mode set for exporting png

src/OffscreenContext.h

@@ -5,7 +5,6 @@
 // Objective-C with C++, it is a bit different than what's found in a textbook.
 
 #include <iostream>
-#include <fstream>
 #include <string>
 #include "fbo.h"
 

src/OffscreenContextAll.hpp

@@ -1,5 +1,5 @@
-// Functions shared by OffscreenContext[platform].cc (or .mm)
-// #include directly after definition of struct OffscreenContext.
+// Functions shared by OffscreenContext[platform].cc
+// #include this directly after definition of struct OffscreenContext.
 
 void bind_offscreen_context(OffscreenContext *ctx)
 {
@@ -11,7 +11,7 @@ void bind_offscreen_context(OffscreenContext *ctx)
 */
 bool save_framebuffer(OffscreenContext *ctx, const char *filename)
 {
-  std::ofstream fstream(filename);
+  std::ofstream fstream(filename,std::ios::out|std::ios::binary);
   if (!fstream.is_open()) {
     std::cerr << "Can't open file " << filename << " for writing";
     return false;

src/OffscreenContextCGL.mm

@@ -113,7 +113,7 @@ bool teardown_offscreen_context(OffscreenContext *ctx)
 */
 bool save_framebuffer(OffscreenContext *ctx, const char *filename)
 {
-        std::ofstream fstream(filename);
+        std::ofstream fstream(filename,std::ios::out|std::ios::binary);
         if (!fstream.is_open()) {
                 PRINTB("Can't open file \"%s\" for writing", filename);
                 return false;

src/OffscreenContextGLX.cc

@@ -45,7 +45,6 @@ See Also
 #include <GL/glx.h>
 
 #include <assert.h>
-#include <fstream>
 #include <sstream>
 
 #include <sys/utsname.h> // for uname

src/imageutils-macosx.cc

@@ -1,6 +1,7 @@
 #include <ApplicationServices/ApplicationServices.h>
 #include <CGDataConsumer.h>
 #include "imageutils.h"
+#include <assert.h>
 
 CGDataConsumerCallbacks dc_callbacks;
 

src/imageutils.cc

@@ -11,7 +11,7 @@ void flip_image(const unsigned char *src, unsigned char *dst, size_t pixelsize,
 }
 
 bool write_png(const char *filename, unsigned char *pixels, int width, int height) {
-  std::ofstream fstream( filename );
+  std::ofstream fstream( filename, std::ios::binary );
   if (fstream.is_open()) {
     write_png( fstream, pixels, width, height );
     fstream.close();

src/openscad.cc

@@ -386,7 +386,7 @@ int main(int argc, char **argv)
 			}
 
 			if (png_output_file) {
-				std::ofstream fstream(png_output_file);
+				std::ofstream fstream(png_output_file,std::ios::out|std::ios::binary);
 				if (!fstream.is_open()) {
 					PRINTB("Can't open file \"%s\" for export", png_output_file);
 				}