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/**
* @file lldynamictexture.h
* @brief Implementation of LLDynamicTexture class
*
* $LicenseInfo:firstyear=2002&license=viewergpl$
*
* Copyright (c) 2002-2008, 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_LLDYNAMICTEXTURE_H
#define LL_LLDYNAMICTEXTURE_H
#include "llgl.h"
#include "llcamera.h"
#include "llcoord.h"
#include "llimagegl.h"
class LLDynamicTexture
{
public:
enum EOrder { ORDER_FIRST = 0, ORDER_MIDDLE = 1, ORDER_LAST = 2, ORDER_RESET = 3, ORDER_COUNT = 4 };
LLDynamicTexture(S32 width,
S32 height,
S32 components, // = 4,
EOrder order, // = ORDER_MIDDLE,
BOOL clamp);
virtual ~LLDynamicTexture();
S32 getOriginX() { return mOrigin.mX; }
S32 getOriginY() { return mOrigin.mY; }
S32 getWidth() { return mWidth; }
S32 getHeight() { return mHeight; }
S32 getComponents() { return mComponents; }
S32 getSize() { return mWidth * mHeight * mComponents; }
virtual BOOL needsRender() { return TRUE; }
virtual void preRender(BOOL clear_depth = TRUE);
virtual BOOL render();
virtual void postRender(BOOL success);
virtual void bindTexture();
virtual void unbindTexture();
static BOOL updateAllInstances();
static void destroyGL();
static void restoreGL();
protected:
void releaseGLTexture();
void generateGLTexture();
void generateGLTexture(LLGLint internal_format, LLGLenum primary_format, LLGLenum type_format, BOOL swap_bytes = FALSE);
protected:
S32 mWidth;
S32 mHeight;
S32 mComponents;
LLPointer<LLImageGL> mTexture;
F32 mLastBindTime;
BOOL mClamp;
LLCoordGL mOrigin;
LLCamera mCamera;
typedef std::set<LLDynamicTexture*> instance_list_t;
static instance_list_t sInstances[ LLDynamicTexture::ORDER_COUNT ];
static S32 sNumRenders;
};
#endif
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