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/**
* @file llimageworker.h
* @brief Object for managing images and their textures.
*
* $LicenseInfo:firstyear=2000&license=viewergpl$
*
* Copyright (c) 2000-2009, 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_LLIMAGEWORKER_H
#define LL_LLIMAGEWORKER_H
#include "llimage.h"
#include "llpointer.h"
#include "llworkerthread.h"
class LLImageDecodeThread : public LLQueuedThread
{
public:
class Responder : public LLThreadSafeRefCount
{
protected:
virtual ~Responder();
public:
virtual void completed(bool success, LLImageRaw* raw, LLImageRaw* aux) = 0;
};
class ImageRequest : public LLQueuedThread::QueuedRequest
{
protected:
virtual ~ImageRequest(); // use deleteRequest()
public:
ImageRequest(handle_t handle, LLImageFormatted* image,
U32 priority, S32 discard, BOOL needs_aux,
LLImageDecodeThread::Responder* responder);
/*virtual*/ bool processRequest();
/*virtual*/ void finishRequest(bool completed);
// Used by unit tests to check the consitency of the request instance
bool tut_isOK();
private:
// input
LLPointer<LLImageFormatted> mFormattedImage;
S32 mDiscardLevel;
BOOL mNeedsAux;
// output
LLPointer<LLImageRaw> mDecodedImageRaw;
LLPointer<LLImageRaw> mDecodedImageAux;
BOOL mDecodedRaw;
BOOL mDecodedAux;
LLPointer<LLImageDecodeThread::Responder> mResponder;
};
public:
LLImageDecodeThread(bool threaded = true);
handle_t decodeImage(LLImageFormatted* image,
U32 priority, S32 discard, BOOL needs_aux,
Responder* responder);
S32 update(U32 max_time_ms);
// Used by unit tests to check the consistency of the thread instance
S32 tut_size();
private:
struct creation_info
{
handle_t handle;
LLPointer<LLImageFormatted> image;
U32 priority;
S32 discard;
BOOL needs_aux;
LLPointer<Responder> responder;
creation_info(handle_t h, LLImageFormatted* i, U32 p, S32 d, BOOL aux, Responder* r)
: handle(h), image(i), priority(p), discard(d), needs_aux(aux), responder(r)
{}
};
typedef std::list<creation_info> creation_list_t;
creation_list_t mCreationList;
LLMutex* mCreationMutex;
};
#endif
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