improved TGA handling

1 files changed, 56 insertions, 0 deletions

diff --git a/src/render/image.h b/src/render/image.h
new file mode 100644
index 0000000..0c1069b
--- /dev/null
+++ b/src/render/image.h
@@ -0,0 +1,56 @@
+/*
+   render/image.h
+   This file is part of the Osirion project and is distributed under 
+   the terms of the GNU General Public License version 2 
+*/
+
+#ifndef __INCLUDED_RENDER_IMAGE_H__
+#define __INCLUDED_RENDER_IMAGE_H__
+
+namespace render {
+
+/// RGB (24bpp) or RGBA (32bpp) image data
+class Image {
+public:
+	Image(unsigned int width, unsigned int height, unsigned int channels);
+	~Image();
+
+	// pointer to the image data
+	inline unsigned char *data() { return image_data; }
+
+	// index into the image data
+	inline unsigned char *operator[](size_t index) { return &image_data[index]; }
+
+	// width of the image in pixels
+	inline unsigned int width() const { return image_width; }
+
+	// height of the image in pixels
+	inline unsigned int height() const { return image_height; }
+
+	// size of the image data in bytes
+	inline size_t size() const { return ((size_t) image_width * (size_t) image_height * (size_t) image_channels); }
+
+	// number of channels 3 (RGB) or 4 (RGBA)
+	inline unsigned int channels() const { return image_channels; }
+
+	// set image data to zero
+	void clear();
+
+	// swap the red and blue channel values of the image
+	void swap_channels();
+
+	// flip upside-down
+	void flip();
+
+private:
+	unsigned char 		*image_data;
+
+	unsigned int		image_width;
+	unsigned int		image_height;
+	unsigned int		image_channels;
+};
+
+}
+
+#endif // __INCLUDED_RENDER_IMAGE_H__
+