Make sure png file gets closed by wrapping the file descriptor into a

class with destructor

1 files changed, 13 insertions, 0 deletions

diff --git a/BuddhaTest/include/Helpers.h b/BuddhaTest/include/Helpers.h
index c24e2c7..ad14305 100644
--- a/BuddhaTest/include/Helpers.h
+++ b/BuddhaTest/include/Helpers.h
@@ -2,6 +2,7 @@
 #include <glad/glad.h>

 #include <GLFW/glfw3.h>

 #include <vector>

+#include <stdio.h> //includes FILE typedef

 

 namespace Helpers

 {

@@ -9,4 +10,16 @@ namespace Helpers
 	GLuint LoadComputeShader(const char * compute_file_path);

 

     void WriteOutputPNG(const std::vector<uint32_t>& data, unsigned int width, unsigned int height);

+

+    /** Wraps around a C file descriptor. Libpng could be taught to use C++ streams, but I'm too lazy and rather wrap this ugly thing up, so it gets cleaned... */

+    class ScopedCFileDescriptor

+    {

+    public:

+        ScopedCFileDescriptor(const char *path, const char *mode);

+        ~ScopedCFileDescriptor();

+        FILE * Get() const;

+        bool IsValid() const;

+    private:

+        FILE * Descriptor;

+    };

 }