init

1 files changed, 42 insertions, 0 deletions

diff --git a/libpng_wrapper.hpp b/libpng_wrapper.hpp
new file mode 100644
index 0000000..cf95dff
--- /dev/null
+++ b/libpng_wrapper.hpp
@@ -0,0 +1,42 @@
+#ifndef PNGWRAP_H
+#define PNGWRAP_H
+
+#include <string>
+#include <array>
+#include <png.h>
+
+#define PNG_FILE_ERROR    0
+#define PNG_LIBPNG_ERROR  1
+
+struct rgb {
+  png_byte r;
+  png_byte g;
+  png_byte b;
+};
+
+
+class png {
+  protected:
+    const int DEFAULT_BIT_DEPTH = 8;
+    const int DEFAULT_COLOR_TYPE = PNG_COLOR_TYPE_RGB;
+    const bool DEFAULT_INTERLACE = false;
+    const int DEFAULT_TRANSFORMS = PNG_TRANSFORM_IDENTITY;
+    FILE *output_fp;
+    png_structp png_ptr;
+    png_infop png_info_ptr;
+    png_byte **row_pointers;
+    
+  public:
+    //the user doesn't have a lot of control over png output settings.
+    //Will expand class to allow so if it's found nessesary.
+    ~png();
+    png(std::string filename, uint32_t width, uint32_t height);
+    void save();
+
+    void set_pixel(uint32_t x, uint32_t y, png_byte r, png_byte g, png_byte b);
+
+    uint32_t width();
+    uint32_t height();
+};
+
+#endif