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/**
* @file llimageworker.h
* @brief Object for managing images and their textures.
*
* $LicenseInfo:firstyear=2000&license=viewerlgpl$
* 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_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,
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);
virtual ~LLImageDecodeThread();
handle_t decodeImage(LLImageFormatted* image,
S32 discard, BOOL needs_aux,
Responder* responder);
S32 update(F32 max_time_ms);
private:
struct creation_info
{
handle_t handle;
LLPointer<LLImageFormatted> image;
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), discard(d), needs_aux(aux), responder(r)
{}
};
LLMutex* mCreationMutex;
};
#endif
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