libgui-maschell/source/gui/GuiImageAsync.h

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2017-10-29 10:28:14 +01:00
/****************************************************************************
* Copyright (C) 2015 Dimok
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#ifndef _GUIIMAGEASYNC_H_
#define _GUIIMAGEASYNC_H_
#include <vector>
#include "GuiImage.h"
#include <system/CThread.h>
#include <system/CMutex.h>
#include <dynamic_libs/os_functions.h>
class GuiImageAsync : public GuiImage
{
public:
GuiImageAsync(const u8 *imageBuffer, const u32 & imageBufferSize, GuiImageData * preloadImg);
GuiImageAsync(const std::string & filename, GuiImageData * preloadImg);
virtual ~GuiImageAsync();
static void clearQueue();
static void removeFromQueue(GuiImageAsync * image) {
threadRemoveImage(image);
}
//! don't forget to LOCK GUI if using this asynchron call
sigslot::signal1<GuiImageAsync *> imageLoaded;
static void threadExit();
private:
static void threadInit();
GuiImageData *imgData;
std::string filename;
const u8 *imgBuffer;
const u32 imgBufferSize;
static void guiImageAsyncThread(CThread *thread, void *arg);
static void threadAddImage(GuiImageAsync* Image);
static void threadRemoveImage(GuiImageAsync* Image);
static std::vector<GuiImageAsync *> imageQueue;
static CThread *pThread;
static CMutex * pMutex;
static u32 threadRefCounter;
static GuiImageAsync * pInUse;
static bool bExitRequested;
};
#endif /*_GUIIMAGEASYNC_H_*/