lltexture.h
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- /**
- * @file lltexture.h
- * @brief LLTexture definition
- *
- * This class acts as a wrapper for OpenGL calls.
- * The goal of this class is to minimize the number of api calls due to legacy rendering
- * code, to define an interface for a multiple rendering API abstraction of the UI
- * rendering, and to abstract out direct rendering calls in a way that is cleaner and easier to maintain.
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #ifndef LL_TEXTURE_H
- #define LL_TEXTURE_H
- #include "llrefcount.h"
- class LLImageGL ;
- class LLTexUnit ;
- class LLFontGL ;
- //
- //this is an abstract class as the parent for the class LLViewerTexture
- //through the following virtual functions, the class LLViewerTexture can be reached from /llrender.
- //
- class LLTexture : public LLRefCount
- {
- friend class LLTexUnit ;
- friend class LLFontGL ;
- protected:
- virtual ~LLTexture();
- public:
- LLTexture(){}
- //
- //interfaces to access LLViewerTexture
- //
- virtual S8 getType() const = 0 ;
- virtual void setKnownDrawSize(S32 width, S32 height) = 0 ;
- virtual bool bindDefaultImage(const S32 stage = 0) = 0 ;
- virtual void forceImmediateUpdate() = 0 ;
- virtual void setActive() = 0 ;
- virtual S32 getWidth(S32 discard_level = -1) const = 0 ;
- virtual S32 getHeight(S32 discard_level = -1) const = 0 ;
- private:
- //note: do not make this function public.
- virtual LLImageGL* getGLTexture() const = 0 ;
- virtual void updateBindStatsForTester() = 0 ;
- };
- #endif