Files
kraken/KREngine/KREngine/Classes/KRTextureManager.h
kearwood 63fb848da5 Implemented global dynamic texture LOD selection to constrain texture memory usage within bounds
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extra : convert_revision : svn%3A7752d6cf-9f14-4ad2-affc-04f1e67b81a5/trunk%40108
2012-09-26 20:07:48 +00:00

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//
// KRTextureManager.h
// KREngine
//
// Copyright 2012 Kearwood Gilbert. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those of the
// authors and should not be interpreted as representing official policies, either expressed
// or implied, of Kearwood Gilbert.
//
#define KRENGINE_MAX_TEXTURE_UNITS 8
#define KRENGINE_MAX_TEXTURE_HANDLES 10000
#define KRENGINE_MAX_TEXTURE_MEM 96000000
#define KRENGINE_TARGET_TEXTURE_MEM_MAX 64000000
#define KRENGINE_TARGET_TEXTURE_MEM_MIN 32000000
#define KRENGINE_MAX_TEXTURE_DIM 2048
#define KRENGINE_MIN_TEXTURE_DIM 16
#ifndef KRTEXTUREMANAGER_H
#define KRTEXTUREMANAGER_H
#include "KRTexture.h"
#include "KRContextObject.h"
#include <map>
#import <string>
using std::map;
class KRTextureManager : public KRContextObject {
public:
KRTextureManager(KRContext &context);
virtual ~KRTextureManager();
void rotateBuffers(bool new_frame);
void selectTexture(int iTextureUnit, KRTexture *pTexture, int lod_max_dim);
#if TARGET_OS_IPHONE
KRTexture *loadTexture(const char *szName, KRDataBlock *data);
#endif
KRTexture *getTexture(const char *szFile);
long getMemUsed();
long getActiveMemUsed();
int getLODDimCap();
private:
void decreaseLODCap();
void increaseLODCap();
std::map<std::string, KRTexture *> m_textures;
KRTexture *m_boundTextures[KRENGINE_MAX_TEXTURE_UNITS];
std::set<KRTexture *> m_activeTextures;
std::set<KRTexture *> m_poolTextures;
long m_textureMemUsed;
long m_activeTextureMemUsed;
int m_lod_max_dim_cap;
};
#endif