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Include/ZRenderer/ZDimensionTextureBase.hpp

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+/*
+	ZDimensionTextureBase.hpp
+	Author: James Russell <jcrussell@762studios.com>
+	Created: 7/1/2012
+
+	Purpose: 
+
+	Base implementation of a dimension (1D, 2D, 3D) texture.
+
+	License:
+
+	TODO
+
+*/
+
+#pragma once
+
+#ifndef _ZDIMENSIONTEXTUREBASE_HPP
+#define _ZDIMENSIONTEXTUREBASE_HPP
+
+#include <ZRenderer/ZDimensionTexture.hpp>
+
+class ZDimensionTextureBase : public ZDimensionTexture
+{
+protected:
+	//Type of texture
+	ZTextureType Type;
+
+	//Format of texture
+	ZTextureFormat Format;
+
+	//Usage type of texture
+	ZTextureUsage Usage;
+
+	//Bitmap format (including memory buffer, if needed)
+	ZBitmap Bitmap;
+
+	//Flag indicating this is a mipmapped texture
+	bool bIsMipmapped;
+
+	//Flag indicating the texture data has been modified
+	bool bIsDirty;
+
+	//Gets the texture data from graphics memory
+	virtual void GetDeviceData(void* _buffer) = 0;
+
+	/*
+	Parameterized Constructor.
+
+	@param _type - the texture type
+	@param _format - the texture internal storage format
+	@param _usage - the texture usage hint
+	@param _bitmap - the bitmap for this texture (or side of texture, in case of cube map)
+	@param _generateMipmaps - flag indicating we should generate mipmaps for this texture
+	*/
+	ZDimensionTextureBase(ZTextureType _type, ZTextureFormat _format, ZTextureUsage _usage, const ZBitmap& _bitmap, bool _generateMipmaps);
+
+public:
+	//Virtual Destructor
+	virtual ~ZDimensionTextureBase();
+
+	/*
+	public ZDimensionTextureBase::GetBitmapResetDirty
+
+	Gets the bitmap data for this dimension texture.  This will return
+	NULL if the texture has not been modified since the last call to
+	this function, and in the case it has been modified, a call to this 
+	resets the 'dirty' flag for the render target.
+	
+	@return (ZBitmap*) - bitmap data, NULL if not dirty
+	@context (all)
+	*/
+	ZBitmap* GetBitmapResetDirty();
+
+	uint32_t GetWidth() { return Bitmap.GetWidth(); }
+	uint32_t GetHeight() { return Bitmap.GetHeight(); }
+	uint32_t GetDepth() { return Bitmap.GetDepth(); }
+
+	/*****************************/
+	/* ZDimensionTexture Methods */
+	/*****************************/
+
+	//Subclass Implementation
+	virtual bool Fill(const void* _data);
+
+	//Subclass Implementation
+	virtual const ZBitmapFormat GetBitmapFormat();
+
+	//Subclass Implementation
+	virtual void* Map(bool _discard);
+
+	//Subclass Implementation
+	virtual void Unmap();
+
+	/********************/
+	/* ZTexture Methods */
+	/********************/
+
+	//Subclass Implementation
+	virtual ZTextureType GetType();
+
+	//Subclass Implementation
+	virtual ZTextureUsage GetUsage();
+
+	//Subclass Implementation
+	virtual bool IsMipmapped();
+};
+
+#endif
+