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openmw-tes3coop/components/resource/texturemanager.hpp

77 lines
2.3 KiB
C++

#ifndef OPENMW_COMPONENTS_RESOURCE_TEXTUREMANAGER_H
#define OPENMW_COMPONENTS_RESOURCE_TEXTUREMANAGER_H
#include <string>
#include <map>
#include <osg/ref_ptr>
#include <osg/Image>
#include <osg/Texture2D>
namespace osgViewer
{
class Viewer;
}
namespace VFS
{
class Manager;
}
namespace Resource
{
/// @brief Handles loading/caching of Images and Texture StateAttributes.
class TextureManager
{
public:
TextureManager(const VFS::Manager* vfs);
~TextureManager();
void setFilterSettings(const std::string &magfilter, const std::string &minfilter,
const std::string &mipmap, int maxAnisotropy,
osgViewer::Viewer *view);
/// Keep a copy of the texture data around in system memory? This is needed when using multiple graphics contexts,
/// otherwise should be disabled to reduce memory usage.
void setUnRefImageDataAfterApply(bool unref);
/// Create or retrieve a Texture2D using the specified image filename, and wrap parameters.
/// Returns the dummy texture if the given texture is not found.
osg::ref_ptr<osg::Texture2D> getTexture2D(const std::string& filename, osg::Texture::WrapMode wrapS, osg::Texture::WrapMode wrapT);
/// Create or retrieve an Image
osg::ref_ptr<osg::Image> getImage(const std::string& filename);
const VFS::Manager* getVFS() { return mVFS; }
osg::Texture2D* getWarningTexture();
private:
const VFS::Manager* mVFS;
osg::Texture::FilterMode mMinFilter;
osg::Texture::FilterMode mMagFilter;
int mMaxAnisotropy;
typedef std::pair<std::pair<int, int>, std::string> MapKey;
std::map<std::string, osg::ref_ptr<osg::Image> > mImages;
std::map<MapKey, osg::ref_ptr<osg::Texture2D> > mTextures;
osg::ref_ptr<osg::Texture2D> mWarningTexture;
bool mUnRefImageDataAfterApply;
/// @warning It is unsafe to call this function when a draw thread is using the textures. Call stopThreading() first!
void setFilterSettings(osg::Texture::FilterMode minFilter, osg::Texture::FilterMode maxFilter, int maxAnisotropy);
TextureManager(const TextureManager&);
void operator = (const TextureManager&);
};
}
#endif