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Include/ZRenderer/ZTexture.hpp

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+/*
+	ZTexture.hpp
+	Author: James Russell <jcrussell@762studios.com>
+	Created: 04/06/2011
+
+	Purpose:	
+	
+	Texture interface for the ZEngine.  Texture instances are loaded and created by the 
+	renderer, which acts as a factory for the correct type of texture.
+
+	License:
+
+	TODO
+*/
+
+#pragma once
+
+#ifndef _ZTEXTURE_HPP
+#define _ZTEXTURE_HPP
+
+#include <ZRenderer/ZRendererBuild.hpp>
+#include <ZRenderer/ZRendererResource.hpp>
+
+#include <ZUtil/ZUtil.hpp>
+#include <ZUtil/ZBitmap.hpp>
+
+//Our maximum size for a texture
+#ifndef ZT_MAX_TEXTURE_DIMENSION
+#define ZT_MAX_TEXTURE_DIMENSION (8096)
+#endif
+
+/*
+Enumeration of texture types.  Not all are currently supported.
+*/
+enum ZTextureType
+{
+	ZTT_TEXTURE1D,						//1D texture map
+	ZTT_TEXTURE2D,						//2D texture map
+	ZTT_TEXTURE3D,						//3D texture map (unsupported)
+	ZTT_TEXTURE_CUBE,					//Cubic texture map (unsupported)
+	ZTT_SIZE
+};
+
+/*
+Enumeration of internal storage format for texture types.
+*/
+enum ZTextureFormat
+{
+	ZTF_R8,					//8-bit Unsigned Red (Normalized)
+	ZTF_R8_SNORM,			//8-bit Signed Red (Normalized)
+	ZTF_R8I,				//8-bit Signed Red 
+	ZTF_R8UI,				//8-bit Unsigned Red 
+	ZTF_R16,				//16-bit Unsigned Red (Normalized)
+	ZTF_R16_SNORM,			//16-bit Signed Red (Normalized)
+	ZTF_R16I,				//16-bit Signed Red 
+	ZTF_R16UI,				//16-bit Unsigned Red 
+	ZTF_R16F,				//16-bit Floating Point Red 
+	ZTF_R32I,				//32-bit Signed Red 
+	ZTF_R32UI,				//32-bit Unsigned Red 
+	ZTF_R32F,				//32-bit Floating Point Red 
+
+	ZTF_RG8,				//8-bit Unsigned Red, Green (Normalized)
+	ZTF_RG8_SNORM,			//8-bit Signed Red, Green (Normalized)
+	ZTF_RG8I,				//8-bit Signed Red, Green 
+	ZTF_RG8UI,				//8-bit Unsigned Red, Green
+	ZTF_RG16,				//16-bit Unsigned Red, Green (Normalized) 
+	ZTF_RG16_SNORM,			//16-bit Signed Red, Green (Normalized)
+	ZTF_RG16I,				//16-bit Signed Red, Green 
+	ZTF_RG16UI,				//16-bit Unsigned Red, Green
+	ZTF_RG16F,				//16-bit Floating Point Red, Green 
+	ZTF_RG32,				//32-bit Unsigned Red, Green (Normalized) 
+	ZTF_RG32_SNORM,			//32-bit Signed Red, Green (Normalized)
+	ZTF_RG32I,				//32-bit Signed Red, Green 
+	ZTF_RG32UI,				//32-bit Unsigned Red, Green
+	ZTF_RG32F,				//32-bit Floating Point Red, Green 
+
+	ZTF_RGB8,				//8-bit Unsigned Red, Green, Blue (Normalized)
+	ZTF_RGB8_SNORM,			//8-bit Signed Red, Green, Blue (Normalized)
+	ZTF_RGB8I,				//8-bit Signed Red, Green, Blue 
+	ZTF_RGB8UI,				//8-bit Unsigned Red, Green, Blue
+	ZTF_RGB16,				//16-bit Unsigned Red, Green, Blue (Normalized) 
+	ZTF_RGB16_SNORM,		//16-bit Signed Red, Green, Blue (Normalized)
+	ZTF_RGB16I,				//16-bit Signed Red, Green, Blue 
+	ZTF_RGB16UI,			//16-bit Unsigned Red, Green, Blue
+	ZTF_RGB16F,				//16-bit Floating Point Red, Green, Blue 
+	ZTF_RGB32,				//32-bit Unsigned Red, Green, Blue (Normalized) 
+	ZTF_RGB32_SNORM,		//32-bit Signed Red, Green, Blue (Normalized)
+	ZTF_RGB32I,				//32-bit Signed Red, Green, Blue 
+	ZTF_RGB32UI,			//32-bit Unsigned Red, Green, Blue
+	ZTF_RGB32F,				//32-bit Floating Point Red, Green, Blue 
+
+	ZTF_RGBA8,				//8-bit Unsigned Red, Green, Blue, Alpha (Normalized)
+	ZTF_RGBA8_SNORM,		//8-bit Signed Red, Green, Blue, Alpha (Normalized)
+	ZTF_RGBA8I,				//8-bit Signed Red, Green, Blue, Alpha 
+	ZTF_RGBA8UI,			//8-bit Unsigned Red, Green, Blue, Alpha
+	ZTF_RGBA16,				//16-bit Unsigned Red, Green, Blue, Alpha (Normalized) 
+	ZTF_RGBA16_SNORM,		//16-bit Signed Red, Green, Blue, Alpha (Normalized)
+	ZTF_RGBA16I,			//16-bit Signed Red, Green, Blue, Alpha 
+	ZTF_RGBA16UI,			//16-bit Unsigned Red, Green, Blue, Alpha
+	ZTF_RGBA16F,			//16-bit Floating Point Red, Green, Blue, Alpha
+	ZTF_RGBA32,				//32-bit Unsigned Red, Green, Blue, Alpha (Normalized) 
+	ZTF_RGBA32_SNORM,		//32-bit Signed Red, Green, Blue, Alpha (Normalized)
+	ZTF_RGBA32I,			//32-bit Signed Red, Green, Blue, Alpha 
+	ZTF_RGBA32UI,			//32-bit Unsigned Red, Green, Blue, Alpha
+	ZTF_RGBA32F,			//32-bit Floating Point Red, Green, Blue, Alpha 
+
+	ZTF_DEPTH16,			//16-bit Depth Texture
+	ZTF_DEPTH24,			//24-bit Depth Texture
+	ZTF_DEPTH32,			//32-bit Depth Texture
+	ZTF_DEPTH24_STENCIL8,	//32-bit Depth, 8-bit Stencil
+
+	ZTF_SIZE
+};
+
+/*
+Enumeration of texture usage types.
+*/
+enum ZTextureUsage
+{
+	ZTU_STATIC,							//Static Texture (never or rarely updated)
+	ZTU_DYNAMIC,						//Dynamic Texture (updated frequently)
+	ZTU_STREAMING,						//Streaming Texture (updated every frame)
+	ZTU_SIZE
+};
+
+class ZTexture : public ZRendererResource
+{
+public:
+	//Virtual Destructor
+	virtual ~ZTexture() { }
+
+	/*
+	virtual public ZTexture::GetType
+	
+	Gets the type of this texture.
+	
+	@return (ZTextureType) - the type of texture
+	*/
+	virtual ZTextureType GetType() = 0;
+
+	/*
+	virtual public ZTexture::GetUsage
+	
+	Gets the usage type of this texture.
+	
+	@return (ZTextureUsage)
+	@context (all)
+	*/
+	virtual ZTextureUsage GetUsage() = 0;
+
+	/*
+	public ZTexture::IsMipmapped
+	
+	Tells you whether or not this texture has been mipmapped.
+	
+	@return (bool) - true if mipmapped, false otherwise
+	@context (all)
+	*/
+	virtual bool IsMipmapped() = 0;
+};
+
+#endif