Merging r5975 through r6036 from trunk to ogl-es branch.

GLES drivers adapted, but only did make compile-tests.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475

include/IRenderTarget.h

@@ -0,0 +1,110 @@
+// Copyright (C) 2015 Patryk Nadrowski
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#ifndef __I_RENDER_TARGET_H_INCLUDED__
+#define __I_RENDER_TARGET_H_INCLUDED__
+
+#include "IReferenceCounted.h"
+#include "EDriverTypes.h"
+#include "irrArray.h"
+
+namespace irr
+{
+namespace video
+{
+	class ITexture;
+
+	//! Enumeration of cube texture surfaces
+	enum E_CUBE_SURFACE
+	{
+		ECS_POSX  = 0,
+		ECS_NEGX,
+		ECS_POSY,
+		ECS_NEGY,
+		ECS_POSZ, 
+		ECS_NEGZ
+	};
+
+	//! Interface of a Render Target.
+	class IRenderTarget : public virtual IReferenceCounted
+	{
+	public:
+
+		//! constructor
+		IRenderTarget() : DepthStencil(0), DriverType(EDT_NULL)
+		{
+		}
+
+		//! Returns an array of previously set textures.
+		const core::array<ITexture*>& getTexture() const
+		{
+			return Texture;
+		}
+
+		//! Returns a of previously set depth / depth-stencil texture.
+		ITexture* getDepthStencil() const
+		{
+			return DepthStencil;
+		}
+
+		//! Set multiple textures.
+		/** Set multiple textures for the render target.
+		\param texture Array of texture objects. These textures are used for a color outputs.
+		\param depthStencil Depth or packed depth-stencil texture. This texture is used as depth
+		or depth-stencil buffer. 
+		\param cubeSurfaces When rendering to cube textures, set the surface to be used for each texture. Can be empty otherwise.
+		*/
+		virtual void setTexture(const core::array<ITexture*>& texture, ITexture* depthStencil, const core::array<E_CUBE_SURFACE>& cubeSurfaces = core::array<E_CUBE_SURFACE>()) = 0;
+
+		//! Set one texture.
+		void setTexture(ITexture* texture, ITexture* depthStencil)
+		{
+			core::array<ITexture*> textureArray(1);
+			textureArray.push_back(texture);
+
+			setTexture(textureArray, depthStencil);
+		}
+
+		//! Set one cube surface texture.
+		void setTexture(ITexture* texture, ITexture* depthStencil, E_CUBE_SURFACE cubeSurface)
+		{
+			core::array<ITexture*> textureArray(1);
+			textureArray.push_back(texture);
+
+			core::array<E_CUBE_SURFACE> cubeSurfaces(1);
+			cubeSurfaces.push_back(cubeSurface);
+
+			setTexture(textureArray, depthStencil, cubeSurfaces);
+		}
+
+		//! Get driver type of render target.
+		E_DRIVER_TYPE getDriverType() const
+		{
+			return DriverType;
+		}
+
+	protected:
+
+		//! Textures assigned to render target.
+		core::array<ITexture*> Texture;
+
+		//! Depth or packed depth-stencil texture assigned to render target.
+		ITexture* DepthStencil;
+
+		//! Active surface of cube textures
+		core::array<E_CUBE_SURFACE> CubeSurfaces;
+
+		//! Driver type of render target.
+		E_DRIVER_TYPE DriverType;
+
+	private:
+		// no copying (IReferenceCounted still allows that for reasons which take some time to work around)
+		IRenderTarget(const IRenderTarget&);
+		IRenderTarget& operator=(const IRenderTarget&);
+	};
+
+}
+}
+
+#endif