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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.
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_TEXTURE_H
#define LL_TEXTURE_H
#include "llgltypes.h"
#include "llrefcount.h"
#include "llrender.h"
class LLFontGL ;
class LLImageRaw ;
//
//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(){}
enum EBoostLevel
{
BOOST_NONE = 0,
BOOST_AVATAR_BAKED ,
BOOST_AVATAR ,
BOOST_CLOUDS ,
BOOST_SCULPTED ,
BOOST_HIGH = 10,
BOOST_BUMP ,
BOOST_TERRAIN , // has to be high priority for minimap / low detail
BOOST_SELECTED ,
BOOST_AVATAR_BAKED_SELF ,
BOOST_AVATAR_SELF , // needed for baking avatar
BOOST_SUPER_HIGH , //textures higher than this need to be downloaded at the required resolution without delay.
BOOST_HUD ,
BOOST_ICON ,
BOOST_UI ,
BOOST_PREVIEW ,
BOOST_MAP ,
BOOST_MAP_VISIBLE ,
BOOST_MAX_LEVEL,
//other texture Categories
LOCAL = BOOST_MAX_LEVEL,
AVATAR_SCRATCH_TEX,
DYNAMIC_TEX,
MEDIA,
ATLAS,
OTHER,
MAX_GL_IMAGE_CATEGORY
};
//
//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 ;
virtual BOOL hasGLTexture() const = 0;
virtual BOOL createGLTexture(S32 discard_level, const LLImageRaw* imageraw, S32 usename = 0, BOOL to_create = TRUE, S32 category = LLTexture::OTHER) = 0;
virtual void setExplicitFormat(LLGLint internal_format, LLGLenum primary_format, LLGLenum type_format = 0, BOOL swap_bytes = FALSE) = 0;
virtual void setAddressMode(LLTexUnit::eTextureAddressMode mode) = 0;
virtual LLTexUnit::eTextureAddressMode getAddressMode(void) const = 0;
virtual S8 getComponents() const = 0;
virtual const LLUUID& getID() const = 0;
private:
//note: do not make this function public.
virtual LLImageGL* getGLTexture() const = 0 ;
virtual void updateBindStatsForTester() = 0 ;
};
#endif
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