C++ Image::getHeight方法代码示例

//-----------------------------------------------------------------------------------------
QPixmap GenericImageEditorCodec::onBeforeDisplay(Ogre::DataStreamPtr stream)
{
    Ogre::Image image;
    image.load(stream);

    ImageConverter imageConverter(image.getWidth(), image.getHeight());

    if (mPixmap.convertFromImage(imageConverter.fromOgreImage(image)))
        return mPixmap;

    mPixmap = 0;
    return mPixmap;
}

//-----------------------------------------------------------------------
void AtlasImageTool::correctAlpha (Ogre::Image& image, Ogre::Real alphaCorrection)
{
	size_t numPixels = image.getWidth() * image.getHeight();
	size_t pointer = 0;
	for (size_t i = 0; i < numPixels; ++i)
	{
		Ogre::ColourValue colour;
		Ogre::PixelUtil::unpackColour(&colour, image.getFormat(), (image.getData() + pointer));
		colour.a *= alphaCorrection;
		Ogre::PixelUtil::packColour(colour, image.getFormat(), (image.getData() + pointer));
		pointer += Ogre::PixelUtil::getNumElemBytes(image.getFormat());
	}
}

	void MouseCursor::setSkinType(const Ogre::String type)
	{
		mSkinType = type;
		mDefaultSkinType = type;

		Ogre::Image i;
		i.load(mSkinTypeManager->getSkinType("MouseCursor",mSkinType)->getSkinElement(TEXTURE)->getTextureName(),Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
		// update cursor size to match texture used
		setSize(i.getWidth(),i.getHeight());

		Sheet* sheet = mMouseCursorDesc.guiManager->getActiveSheet();
		if(sheet != NULL)
		{
			MouseEventArgs args(sheet);
			args.position = getPosition();
			sheet->fireSheetEvent(SHEET_EVENT_MOUSE_CURSOR_SKIN_CHANGED,args);
		}
	}

//-----------------------------------------------------------------------
void AtlasImageTool::interpolate (Ogre::Image& interpolatedImage, 
								  Ogre::Image& firstImage, 
								  Ogre::Image& nextImage, 
								  Ogre::Real fraction)
{
	size_t numPixels = interpolatedImage.getWidth() * interpolatedImage.getHeight();
	size_t pointer = 0;
	for (size_t i = 0; i < numPixels; ++i)
	{
		Ogre::ColourValue firstColour;
		Ogre::ColourValue nextColour;
		Ogre::ColourValue interpolatedColour;
		Ogre::PixelUtil::unpackColour(&firstColour, firstImage.getFormat(), (firstImage.getData() + pointer));
		Ogre::PixelUtil::unpackColour(&nextColour, nextImage.getFormat(), (nextImage.getData() + pointer));
		interpolatedColour = firstColour + fraction * (nextColour - firstColour);
		Ogre::PixelUtil::packColour(interpolatedColour, interpolatedImage.getFormat(), (interpolatedImage.getData() + pointer));
		pointer += Ogre::PixelUtil::getNumElemBytes(interpolatedImage.getFormat());
	}
}

	MouseCursor::MouseCursor(const MouseCursorDesc& d) :
		mSkinType("default"),
		mDefaultSkinType("default")
	{
		mMouseCursorDesc.guiManager = d.guiManager;
		mSkinTypeManager = SkinTypeManager::getSingletonPtr();

		for(int i = 0; i < 4; ++i)
			mEnteredBorders[i] = false;

		// Update Size of Cursor to match Skin Texture
		Ogre::Image i;
		i.load(mSkinTypeManager->getSkinType("MouseCursor",mSkinType)->getSkinElement(TEXTURE)->getTextureName(),Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
		// update cursor size to match texture used
		setSize(i.getWidth(),i.getHeight());

		// Set default position
		setPosition(0,0);
	}

    void GlobalMap::exploreCell(int cellX, int cellY)
    {
        float originX = static_cast<float>((cellX - mMinX) * mCellSize);
        // NB y + 1, because we want the top left corner, not bottom left where the origin of the cell is
        float originY = static_cast<float>(mHeight - (cellY + 1 - mMinY) * mCellSize);

        if (cellX > mMaxX || cellX < mMinX || cellY > mMaxY || cellY < mMinY)
            return;

        Ogre::TexturePtr localMapTexture = Ogre::TextureManager::getSingleton().getByName("Cell_"
            + boost::lexical_cast<std::string>(cellX) + "_" + boost::lexical_cast<std::string>(cellY));

        if (!localMapTexture.isNull())
        {
            int mapWidth = localMapTexture->getWidth();
            int mapHeight = localMapTexture->getHeight();
            mOverlayTexture->load();
            mOverlayTexture->getBuffer()->blit(localMapTexture->getBuffer(), Ogre::Image::Box(0,0,mapWidth,mapHeight),
                         Ogre::Image::Box(static_cast<Ogre::uint32>(originX), static_cast<Ogre::uint32>(originY),
                         static_cast<Ogre::uint32>(originX + mCellSize), static_cast<Ogre::uint32>(originY + mCellSize)));

            Ogre::Image backup;
            std::vector<Ogre::uchar> data;
            data.resize(mCellSize*mCellSize*4, 0);
            backup.loadDynamicImage(&data[0], mCellSize, mCellSize, Ogre::PF_A8B8G8R8);

            localMapTexture->getBuffer()->blitToMemory(Ogre::Image::Box(0,0,mapWidth,mapHeight), backup.getPixelBox());

            for (int x=0; x<mCellSize; ++x)
                for (int y=0; y<mCellSize; ++y)
                {
                    assert (originX+x < mOverlayImage.getWidth());
                    assert (originY+y < mOverlayImage.getHeight());
                    assert (x < int(backup.getWidth()));
                    assert (y < int(backup.getHeight()));
                    mOverlayImage.setColourAt(backup.getColourAt(x, y, 0), static_cast<size_t>(originX + x), static_cast<size_t>(originY + y), 0);
                }
        }
    }

void 
BrushSelector::buildPreviewBitmap( const Fairy::TextureInfo texInfo )
{
    const Ogre::uchar BytePerPixel = 8;

    // 读取原始image
    Ogre::Image *oriImage = GetSceneManipulator()->getPreviewImage(texInfo.ownerTextureName);
    // 源大纹理的大小
    size_t oriImageHeight = oriImage->getHeight();
    size_t oriImageWidth = oriImage->getWidth();

    Ogre::uchar *oriImageData = oriImage->getData();
    // 所选纹理的大小
    size_t newImageWidth = texInfo.width*TexTileSize;
    size_t newImageHeight = texInfo.height*TexTileSize;

    // 分配一个足够大的空间来保存新建的image的数据
    size_t newImagegetRowSpan = newImageWidth*oriImage->getBPP()/BytePerPixel;  // 新建的image的行宽（单位为字节）
    Ogre::uchar *newImageData = OGRE_ALLOC_T(Ogre::uchar, oriImageHeight*newImagegetRowSpan, Ogre::MEMCATEGORY_GENERAL);//new Ogre::uchar[newImageHeight*newImagegetRowSpan];
    
    Ogre::uchar *newImageDataPointer = newImageData;
    // 得知起始像素点
    size_t startPoint = ( oriImageWidth * texInfo.topCorner + texInfo.leftCorner )
        * TexTileSize * oriImage->getBPP()/BytePerPixel;

    Ogre::uchar *oriImagedataPointer = oriImageData + startPoint;

    // 把所选的纹理的数据提取出来，并创建一个新的image
    for ( Ogre::uint i=0; i<newImageHeight; ++i )
    {
        memcpy(newImageDataPointer, oriImagedataPointer, newImagegetRowSpan);
        newImageDataPointer += newImagegetRowSpan;
        oriImagedataPointer += oriImage->getRowSpan();
    }

    Ogre::Image newImage;
    newImage.loadDynamicImage(newImageData,newImageWidth,newImageHeight,1,oriImage->getFormat(),true);

    // 如果所选纹理大于64*64，就先resize
    if ( texInfo.width > 1 || texInfo.height > 1 )
        newImage.resize(mPreviewImageWidth, mPreviewImageHeight);

    // 如果有alpha，要与黑白图进行混合
    if ( newImage.getHasAlpha() )
    {  
		Ogre::ColourValue col;

		for ( int i=0; i<mPreviewImageWidth; ++i )
		{
			for ( int j=0; j<mPreviewImageWidth; ++j )
			{
				col = newImage.getColourAt(j,i,0);

				float alphaValue = col.a;

				unsigned char r = col.r*255 * alphaValue + mBlackWhitePreviewImage.GetRed(i,j) * ( 1.0f - alphaValue);
				unsigned char g = col.g*255 * alphaValue + mBlackWhitePreviewImage.GetGreen(i,j) * ( 1.0f - alphaValue);
				unsigned char b = col.b*255 * alphaValue + mBlackWhitePreviewImage.GetBlue(i,j) * ( 1.0f - alphaValue);

				// 设置到image中
				mCurrentPreviewImage.SetRGB(j,i,r,g,b);
			}
		}
        // 设置到缩略图控件中
        mBrushesPreview->SetBitmap(mCurrentPreviewImage);
    }
    // 没有alpha，就直接拷贝数据
    else
    {
		Ogre::ColourValue col;

		for ( int i=0; i<mPreviewImageWidth; ++i )
		{
			for ( int j=0; j<mPreviewImageWidth; ++j )
			{
				col = newImage.getColourAt(j,i,0);

				unsigned char r = col.r*255;
				unsigned char g = col.g*255;
				unsigned char b = col.b*255;

				// 设置到image中
				mCurrentPreviewImage.SetRGB(j,i,r,g,b);
			}
		}

        mBrushesPreview->SetBitmap(mCurrentPreviewImage);    
    }
}

	//------------------------------------------------------
	void TextureAtlas::build() {
		if (!mIsDirty)
			return;

		bool fitted;

		size_t area = 0;

		// build the fonts (if this didn't happen already)
		// so we'll be sure the glyphs are there to be atlassed
		FontSet::iterator fit = mMyFonts.begin();

		while (fit != mMyFonts.end()) {
			FontDrawSource* fdsp = *fit++;

			if (!fdsp->isBuilt())
				fdsp->build();
		}

		// First, we sort by size of the DrawSource
		mMyDrawSources.sort(DrawSourceLess());

		// now try to allocate all the draw sources. If we fail, grow and try again
		do {
			fitted = true;
			area = 0;

			// try to fit
			DrawSourceList::iterator it = mMyDrawSources.begin();

			while (it != mMyDrawSources.end()) {
				
				const DrawSourcePtr& ds = *it++;

				const PixelSize& ps = ds->getPixelSize();
				area += ps.getPixelArea();
				
				LOG_VERBOSE("TextureAtlas: (%s) Trying to place %d x %d (%d -> %d)", mAtlasName.c_str(), ps.width, ps.height, ps.getPixelArea(), area);

				// try to allocate
				FreeSpaceInfo* fsi = mAtlasAllocation->allocate(ps.width, ps.height);

				if (fsi) {
					ds->setPlacementPtr(fsi);
				} else {
					fitted = false;
					break;
				}
			}
			// fitted?

			if (!fitted) // nope - Enlarge!
				enlarge(area);
		} while (!fitted);
		
		LOG_INFO("TextureAtlas: (%s) Creating atlas with dimensions %d x %d", mAtlasName.c_str(), mAtlasSize.width, mAtlasSize.height);

		if (mTexture.isNull())
			prepareResources();
		// TODO: Reallocate the texture here if needed!
		
		Ogre::HardwarePixelBufferSharedPtr pixelBuffer = mTexture->getBuffer();
		pixelBuffer->lock(Ogre::HardwareBuffer::HBL_DISCARD);
		
		const Ogre::PixelBox& targetBox = pixelBuffer->getCurrentLock();
		
		size_t pixelsize = Ogre::PixelUtil::getNumElemBytes(targetBox.format);
		size_t rowsize = targetBox.rowPitch * pixelsize;

		Ogre::uint8* dstData = static_cast<Ogre::uint8*>(targetBox.data);

		// We'll iterate over all draw sources, painting the pixels onto the allocated space
		DrawSourceList::iterator it = mMyDrawSources.begin();

		while (it != mMyDrawSources.end()) {
			const DrawSourcePtr& ds = *it++;

			// render all pixels into the right place
			FreeSpaceInfo* fsi = reinterpret_cast<FreeSpaceInfo*>(ds->getPlacementPtr());
			
			assert(fsi);

			// render into the specified place
			unsigned char* conversionBuf = NULL;
			

			const PixelSize& dps = ds->getPixelSize();
			Ogre::Image* img = ds->getImage();
			Ogre::PixelBox srcPixels = img->getPixelBox();
			
			// convert if the source data don't match
			if(img->getFormat() != Ogre::PF_BYTE_BGRA) {
					conversionBuf = new unsigned char[img->getWidth() * img->getHeight() * pixelsize];
					Ogre::PixelBox convPixels(Ogre::Box(0, 0, dps.width, dps.height), Ogre::PF_BYTE_BGRA, conversionBuf);
					Ogre::PixelUtil::bulkPixelConversion(srcPixels, convPixels);
					srcPixels = convPixels;
			}

			size_t srcrowsize = srcPixels.rowPitch * pixelsize;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        // 计算最终的mini map的大小
        uint miniMapWidth = xIndex * mTexWidth;
        uint miniMapHeight = zIndex * mTexHeight;

        if ( miniMapWidth > 10000 || miniMapHeight > 10000 )
        {
            mLastErrorString = "texture size is out of range!";
            return false;
        }
        // 创建mini map所需的内存空间
        uchar* miniMapData = new uchar[miniMapWidth * miniMapHeight * Ogre::PixelUtil::getNumElemBytes(mOutPutFormat)];

        //// 初始的摄像机位置
        Real xPos = originPoint.x;
        Real zPos = originPoint.z;

        for ( int i=0; i<xIndex; ++i )
        {
            for ( int j=0; j<zIndex; ++j )
            {
                // 设置摄像机位置，并更新render texture的内容
                mCamera->setPosition(xPos, yPos, zPos);
                mRenderTexture->update();

                String fileName = mPath + mSceneBaseName + Ogre::StringConverter::toString(i)
                    + "_" + Ogre::StringConverter::toString(j) + "." + mTexExtension;

                // 输出小纹理文件
                mRenderTexture->writeContentsToFile(fileName);

                mTempOutputFileNames.push_back(fileName);

                // 读取刚创建的纹理
                Ogre::Image* tempImage = new Ogre::Image;
                
                tempImage->load(mSceneBaseName + Ogre::StringConverter::toString(i)
                    + "_" + Ogre::StringConverter::toString(j) + "." + mTexExtension, TEMP_GROUP_NAME);

                // 获取render texture中的内容
                uchar* tempImageData = tempImage->getData();

                // 定位在mini map中的左上角
                uint miniMapIndex = ( j * mTexHeight * miniMapWidth + i * mTexWidth ) * Ogre::PixelUtil::getNumElemBytes(mOutPutFormat);

                uchar* startData = miniMapData + miniMapIndex;

                for ( size_t height = 0; height < tempImage->getHeight(); ++height )
                {
                    for ( size_t width = 0; width < tempImage->getWidth(); ++width )
                    {
                        memcpy(startData, tempImageData, Ogre::PixelUtil::getNumElemBytes(mOutPutFormat));

                        startData += Ogre::PixelUtil::getNumElemBytes(mOutPutFormat);
                        tempImageData += Ogre::PixelUtil::getNumElemBytes( tempImage->getFormat() );
                    }
                    startData += (miniMapWidth - tempImage->getWidth()) * Ogre::PixelUtil::getNumElemBytes(mOutPutFormat);
                }

                delete tempImage;

                // 移动摄像机的z坐标
                if (mUseRealCameraAngle)
                {
                    zPos += (mInvertCameraDir * (projectSize)).z;
                    xPos += (mInvertCameraDir * (projectSize)).x;
                }
                else
                   zPos += mTileSize;
            }
            
            if (mUseRealCameraAngle)
            {
                xPos = originPoint.x;
                zPos = originPoint.z;

                xPos += (mMoveZDir * (mTileSize) * (i+1)).x;
                zPos += (mMoveZDir * (mTileSize) * (i+1)).z;
            }
            else
            {
                // 操作完每一列之后，重置摄像机的z坐标
                zPos = terrainData->mMinZ;

                // 移动摄像机的x坐标
                xPos += mTileSize;
            }
        } 

        // 保存mini map并输出
        Ogre::Image* miniMapImage = new Ogre::Image;
        miniMapImage->loadDynamicImage(miniMapData, miniMapWidth, miniMapHeight, 1, mOutPutFormat, true);

        miniMapImage->save(mPath + mOutFileName + "." + mTexExtension);

        delete miniMapImage;

        rgm.destroyResourceGroup(TEMP_GROUP_NAME);

        return true;
    }

	Vector4* SnowTerrain::getTerrainNormalData()
	{
		PixelBox* terrainNormals;

		// load from normals file
		if(mSnowConfig->terrainSettings.normalsDataFile.length() > 0)
		{
			// get terrain normal data using image
			Ogre::Image img;
			img.load(mSnowConfig->terrainSettings.normalsDataFile,  "General");
			//img.flipAroundY();
			//img.flipAroundX();

			size_t size = img.getWidth();
			assert(img.getWidth() == img.getHeight());

			if (img.getWidth() != mTerrainSize || img.getHeight() != mTerrainSize)
				img.resize(mTerrainSize, mTerrainSize);

			terrainNormals = &img.getPixelBox();

			Vector4* floats = convertNormalsToFloats(terrainNormals, true);
			//OGRE_FREE(terrainNormals->data, Ogre::MEMCATEGORY_GENERAL);
			
			// need to swap z and y vector due to different vertical axis in normal map and world space!
			for(size_t i = 0;i<mTerrainSize*mTerrainSize;i++)
			{
				Vector4 v = floats[i];
				floats[i].z = v.y;
				floats[i].y = v.z;

			}
			return floats;
		}
		else
		{
			// need to wait until terrain is loaded
			while (getTerrain()->isDerivedDataUpdateInProgress())
			{
				// we need to wait for this to finish
				OGRE_THREAD_SLEEP(50);
				Root::getSingleton().getWorkQueue()->processResponses();
			}

			// Get terrain normal data using official method
			//terrainNormals = getTerrain()->calculateNormals(Ogre::Rect(0,0,mTerrainSize,mTerrainSize),Rect(0,0,mTerrainSize,mTerrainSize));
			Ogre::Image img;
			getTerrain()->getTerrainNormalMap()->convertToImage(img);
			//img.flipAroundY();
			img.flipAroundX();
			//img.save("test_normals.bmp");
			terrainNormals = &img.getPixelBox();

			Vector4* floats = convertNormalsToFloats(terrainNormals, true);
			//OGRE_FREE(terrainNormals->data, Ogre::MEMCATEGORY_GENERAL);
			return floats;
		}


		
	}

AssetLoadState TextureAsset::DeserializeFromData(const u8 *data, size_t numBytes)
{
    if (!data)
        return ASSET_LOAD_FAILED; ///\todo Log out error.
    if (numBytes == 0)
        return ASSET_LOAD_FAILED; ///\todo Log out error.

    // Don't load textures to memory in headless mode
    if (assetAPI->IsHeadless())
    {
	    return ASSET_LOAD_FAILED;
    }

    if (OGRE_THREAD_SUPPORT != 0)
    {
        // We can only do threaded loading from disk, and not any disk location but only from asset cache.
        // local:// refs will return empty string here and those will fall back to the non-threaded loading.
        // Do not change this to do DiskCache() as that directory for local:// refs will not be a known resource location for ogre.
        QString cacheDiskSource = assetAPI->GetAssetCache()->GetDiskSource(QUrl(Name()));
        if (!cacheDiskSource.isEmpty())
        {
            QFileInfo fileInfo(cacheDiskSource);
            std::string sanitatedAssetRef = fileInfo.fileName().toStdString();             
            loadTicket_ = Ogre::ResourceBackgroundQueue::getSingleton().load(Ogre::TextureManager::getSingleton().getResourceType(),
                                                                             sanitatedAssetRef, OgreRenderer::OgreRenderingModule::CACHE_RESOURCE_GROUP,
                                                                             false, 0, 0, this);
            return ASSET_LOAD_PROCESSING;
        }
    }                                                
    
    try
    {
        // Convert the data into Ogre's own DataStream format.
        std::vector<u8> tempData(data, data + numBytes);
#include "DisableMemoryLeakCheck.h"
        Ogre::DataStreamPtr stream(new Ogre::MemoryDataStream(&tempData[0], tempData.size(), false));
#include "EnableMemoryLeakCheck.h"
        // Load up the image as an Ogre CPU image object.
        Ogre::Image image;
        image.load(stream);

        if (ogreTexture.isNull()) // If we are creating this texture for the first time, create a new Ogre::Texture object.
        {
            ogreAssetName = OgreRenderer::SanitateAssetIdForOgre(this->Name().toStdString()).c_str();
            ogreTexture = Ogre::TextureManager::getSingleton().loadImage(ogreAssetName.toStdString(), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, image);
        }
        else // If we're loading on top of an Ogre::Texture we've created before, don't lose the old Ogre::Texture object, but reuse the old.
        {    // This will allow all existing materials to keep referring to this texture, and they'll get the updated texture image immediately.
            ogreTexture->freeInternalResources(); 

            if (image.getWidth() != ogreTexture->getWidth() || image.getHeight() != ogreTexture->getHeight() || image.getFormat() != ogreTexture->getFormat())
            {
                ogreTexture->setWidth(image.getWidth());
                ogreTexture->setHeight(image.getHeight());
                ogreTexture->setFormat(image.getFormat());
            }

            if (ogreTexture->getBuffer().isNull())
            {
                LogError("DeserializeFromData: Failed to create texture " + this->Name().toStdString() + ": OgreTexture::getBuffer() was null!");
                return ASSET_LOAD_FAILED;
            }

            Ogre::PixelBox pixelBox(Ogre::Box(0,0, image.getWidth(), image.getHeight()), image.getFormat(), (void*)image.getData());
            ogreTexture->getBuffer()->blitFromMemory(pixelBox);

            ogreTexture->createInternalResources();
        }

        return ASSET_LOAD_SUCCESFULL;
    }
    catch (Ogre::Exception &e)
    {
        LogError("DeserializeFromData: Failed to create texture " + this->Name().toStdString() + ": " + std::string(e.what()));
        return ASSET_LOAD_FAILED;
    }
}

/* ----------------------------------------------------------------------- 
 | build bullet height field shape and generate ogre mesh from grayscale image
 | 
 | @param in : 
 | @param out: raw data of height field terrain
 | ToDo: adjest grid scale, grid height, local scale, max/min height
   ----------------------------------------------------------------------- */
bool
buildHeightFieldTerrainFromImage(const Ogre::String& filename, 
                                 btDynamicsWorld* dynamicsWorld, 
                                 btAlignedObjectArray<btCollisionShape*>& collisionShapes,
                                 void* &data)
{
    Ogre::Image img;
    try
    {
        img.load(filename, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
    }   
    catch(Ogre::Exception err)
    {
        LOG(err.what());
        return false;
    }
    
    size_t grid_w = 65, grid_h = 65; // must be (2^N) + 1
    size_t grid_max_w = 129, grid_max_h = 129; // must be (2^N) + 1
    size_t img_w = img.getWidth();
    size_t img_h = img.getHeight();
    
    // validate image size is (2^N) + 1
    if ((img_w-1) & (img_w-2)) img_w = grid_w; 
    if ((img_h-1) & (img_h-2)) img_h = grid_h;
    //if (img_w > grid_max_w) img_w = grid_max_w; 
    //if (img_h > grid_max_h) img_h = grid_max_h; 

    LOG("LoadImage name=%s, width=%d, height=%d, width^2+1=%d, height^2+1=%d",
        filename.c_str(), img.getWidth(), img.getHeight(), img_w, img_h);
    img.resize(img_w, img_h);

    size_t pixelSize = Ogre::PixelUtil::getNumElemBytes(img.getFormat());    
    size_t bufSize = img.getSize() / pixelSize;
    data = new Ogre::Real[ bufSize ];
    Ogre::Real* dest = static_cast<Ogre::Real*>(data);
    memset(dest, 0, bufSize);
        
    /*
     | @ Notice the alignment problem
     | - uchar to float alignment
     | - pixel format in bytes as rawdata type, also affects alignment
     */
    Ogre::uchar* src = img.getData();    
    for (size_t i=0;i<bufSize;++i)
    {        
        dest[i] = ((Ogre::Real)src[i * pixelSize] - 127.0f)/16.0f;
    }
          
    // parameter    
    int upAxis = 1;
    btScalar gridSpacing = 5.0f;
    btScalar gridHeightScale = 0.2f;
    btScalar minHeight = -10.0f;
    btScalar maxHeight = 10.0f;
    btScalar defaultContactProcessingThreshold = BT_LARGE_FLOAT;

	btHeightfieldTerrainShape *heightfieldShape =  
        new btHeightfieldTerrainShape(img_w, img_h,
                                      dest,
                                      gridHeightScale,
                                      minHeight, maxHeight,
                                      upAxis, PHY_FLOAT, false);
	btAssert(heightfieldShape && "null heightfield");

	// shape
	btVector3 localScaling(1.0f, 1.0f, 1.0f);
	heightfieldShape->setLocalScaling(localScaling);    
    collisionShapes.push_back(heightfieldShape);

    // rigidBody
    btDefaultMotionState* motionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1),btVector3(0,0,0)));
    btRigidBody::btRigidBodyConstructionInfo cInfo(0, motionState, heightfieldShape, btVector3(0,0,0));
    btRigidBody* rigidBody = new btRigidBody(cInfo);        	
	rigidBody->setContactProcessingThreshold(defaultContactProcessingThreshold);
    int flags = rigidBody->getCollisionFlags();
    rigidBody->setCollisionFlags(flags | btCollisionObject::CF_DISABLE_VISUALIZE_OBJECT);
    
    dynamicsWorld->addRigidBody(rigidBody);
    
    // add ogre height field mesh
    Ogre::SceneManager* sceneMgr = Ogre::Root::getSingletonPtr()->getSceneManager("DefaultSceneManager");
    btAssert(sceneMgr);
    
    Ogre::ManualObject* obj = sceneMgr->createManualObject("btHeightFieldEntity");

    btVector3 aabbMin, aabbMax;
    heightfieldShape->getAabb(btTransform(btQuaternion(0,0,0,1),btVector3(0,0,0)), aabbMin, aabbMax);

    btHeightFieldProcessor callback(obj, "DefaultPlane");
    heightfieldShape->processAllTriangles(&callback, aabbMin, aabbMax);
   
    sceneMgr->getRootSceneNode()->attachObject(obj);
//.........这里部分代码省略.........

void
BrushSelector::OnPixmapListSelected(wxTreeEvent& event)
{
	try
	{
    // 以下是改成定义文件后的修改
    //  mPaintInOneGrid = false;
    // 保存当前选中的纹理的大小
    int selectedTexXSize = 0;
    int selectedTexZSize = 0;

    // 当画刷被选中时，要进行判断
    wxTreeItemId itemId = event.GetItem();

    wxTreeItemId rootId = mBrushesTree->GetRootItem();

    // 如果选中根，就返回
    if ( itemId == rootId )
    {
        // 选中根目录名时，所有选项都变灰
        mFlipHorizontal->Enable(false);
        mFlipVertical->Enable(false);
        mRotateRightAngle->Enable(false);
        mMirrorDiagonal->Enable(false);
        mRandom->Enable(false);
        mEnablePreview->Enable(false);

        // 缩略图用黑白图
        mBrushesPreview->SetBitmap(mBlackWhitePreviewImage);

        return;
    }

    if (itemId.IsOk())
    {
        mCurrentOrientationType = 0;

        // 如果选项的父是root，说明该画刷是放在根目录下的，也有可能是根目录下的子目录
        if ( mBrushesTree->GetItemParent(itemId) == rootId )
        {
            mCurrentFileName = mBrushesTree->GetItemText(itemId);
        }
        else
        {
            // 以下处理不是放在根目录下的画刷

            wxTreeItemId parentId = mBrushesTree->GetItemParent(itemId);
            mCurrentFileName = mBrushesTree->GetItemText(itemId);

            // 以此取出父目录的目录名，组合成相对路径名，并加上文件名
            while ( parentId != rootId )
            {
                wxString parentText = mBrushesTree->GetItemText(parentId);
                parentText += '/';
                mCurrentFileName.Prepend( parentText );

                parentId = mBrushesTree->GetItemParent(parentId);
            }		
        }

        // 如果名字中有.，说明是文件名，不是目录名
        if ( mCurrentFileName.find_first_of('|') != wxString::npos )
        {
            mFlipHorizontal->Enable(true);
            mFlipVertical->Enable(true);
            mRotateRightAngle->Enable(true);
            mMirrorDiagonal->Enable(true);
            mRandom->Enable(true);
            mEnablePreview->Enable(true);

            Ogre::String currentFileName(mCurrentFileName.c_str());

            size_t pos = currentFileName.find_last_of('/');

            // 取出brush名称
            Ogre::String brushName = currentFileName.substr(0,pos);
            Ogre::String textureName = currentFileName.substr(pos+1);

            const Fairy::TextureInfos &currentPaintInfos = 
                GetSceneManipulator()->getTextureInfos(brushName);

            const Fairy::TextureInfo &currentPaintInfo = GetSceneManipulator()->getTextureInfo(brushName, textureName);

            Ogre::Image *previewImage = GetSceneManipulator()->getPreviewImage(currentPaintInfo.ownerTextureName);

            // 组成纹理信息字符串
            Ogre::String texInfoString;
            texInfoString += currentPaintInfo.ownerTextureName;
            texInfoString += "|";
            texInfoString += Ogre::StringConverter::toString(currentPaintInfo.height);
            texInfoString += "|";
            texInfoString += Ogre::StringConverter::toString(currentPaintInfo.width);
            texInfoString += "|";
            texInfoString += Ogre::StringConverter::toString(currentPaintInfo.leftCorner);
            texInfoString += "|";
            texInfoString += Ogre::StringConverter::toString(currentPaintInfo.topCorner);
            texInfoString += "|";
            texInfoString += Ogre::StringConverter::toString(previewImage->getHeight());
            texInfoString += "|";
            texInfoString += Ogre::StringConverter::toString(previewImage->getWidth());
//.........这里部分代码省略.........

void
Terrain::_createAtlasPixmap(size_t pixmapId)
{
    const TerrainData::Pixmap& pixmap = mData->mPixmaps[pixmapId];
    size_t textureId = pixmap.textureId;
    assert(textureId < mData->mTextures.size());
    const Ogre::String& textureName = mData->mTextures[textureId];

    // If the atlas texture already exist, use it.

    AtlasArray::const_iterator it;
    for (it = mAtlases.begin(); it != mAtlases.end(); ++it)
    {
        if (it->texture->getName() == textureName)
            break;
    }
    if (it != mAtlases.end())
    {
        // Fill up atlas pixmap info
        size_t atlasId = it - mAtlases.begin() + 1;
        mAtlasPixmaps[pixmapId].atlasId = atlasId;
        mAtlasPixmaps[pixmapId].left = pixmap.left;
        mAtlasPixmaps[pixmapId].top = pixmap.top;
        mAtlasPixmaps[pixmapId].right = pixmap.right;
        mAtlasPixmaps[pixmapId].bottom = pixmap.bottom;
        return;
    }

    // If texture already loaded and is composited, use it without any modify.
    Ogre::TexturePtr texture = Ogre::TextureManager::getSingleton().getByName(textureName);
    if (!texture.isNull() &&
        (texture->getWidth() > mAtlasPixmapSize || texture->getHeight() > mAtlasPixmapSize))
    {
        mAtlases.push_back(Atlas());
        Atlas& atlas = mAtlases.back();

        atlas.texture = texture;

        // Fill up atlas pixmap info
        size_t atlasId = mAtlases.size();
        mAtlasPixmaps[pixmapId].atlasId = atlasId;
        mAtlasPixmaps[pixmapId].left = pixmap.left;
        mAtlasPixmaps[pixmapId].top = pixmap.top;
        mAtlasPixmaps[pixmapId].right = pixmap.right;
        mAtlasPixmaps[pixmapId].bottom = pixmap.bottom;
        return;
    }

    // Load the image
    Ogre::Image image;
    image.load(textureName, BRUSH_RESOURCE_GROUP_NAME);

    // If the image is composited, use it without any modify.
    if (image.getWidth() > mAtlasPixmapSize || image.getHeight() > mAtlasPixmapSize)
    {
        mAtlases.push_back(Atlas());
        Atlas& atlas = mAtlases.back();

        // re-use the loaded image avoid load it again
        atlas.texture =
            Ogre::TextureManager::getSingleton()
            .loadImage(textureName, BRUSH_RESOURCE_GROUP_NAME, image);

        // Fill up atlas pixmap info
        size_t atlasId = mAtlases.size();
        mAtlasPixmaps[pixmapId].atlasId = atlasId;
        mAtlasPixmaps[pixmapId].left = pixmap.left;
        mAtlasPixmaps[pixmapId].top = pixmap.top;
        mAtlasPixmaps[pixmapId].right = pixmap.right;
        mAtlasPixmaps[pixmapId].bottom = pixmap.bottom;
        return;
    }

    // Composite into the atlas texture.

    bool isTransparent = image.getHasAlpha();
    AtlasAllocInfo& allocInfo = isTransparent ? mTransparentAtlasAllocInfo : mSolidAtlasAllocInfo;
    if (allocInfo.blockId >= mMaxAtlasBlockId)
    {
        // Use special name to avoid confuse with other reference with this texture
       Ogre::String atlasName = "<Terrain/Atlas>:" + Ogre::StringConverter::toString(mAtlases.size());

        mAtlases.push_back(Atlas());
        Atlas& atlas = mAtlases.back();

        Ogre::PixelFormat pixelFormat = isTransparent ? Ogre::PF_A8R8G8B8 : Ogre::PF_X8R8G8B8;
        atlas.image.bind(new Ogre::Image);
        atlas.image->loadDynamicImage(0, mAtlasTextureSize, mAtlasTextureSize, 1, pixelFormat, true, 1, mAtlasNumMipMaps);
        memset(atlas.image->getData(), 0, atlas.image->getSize());

        atlas.texture =
            Ogre::TextureManager::getSingleton().createManual(atlasName,
                BRUSH_RESOURCE_GROUP_NAME, Ogre::TEX_TYPE_2D,
                atlas.image->getWidth(), atlas.image->getHeight(),
                mAtlasNumMipMaps, atlas.image->getFormat(),
                Ogre::TU_DYNAMIC_WRITE_ONLY_DISCARDABLE,
                this);

        allocInfo.atlasId = mAtlases.size();
        allocInfo.blockId = 0;
//.........这里部分代码省略.........

void SaveGameDialog::onSlotSelected(MyGUI::ListBox *sender, size_t pos)
{
    if (pos == MyGUI::ITEM_NONE)
    {
        mCurrentSlot = NULL;
        mInfoText->setCaption("");
        mScreenshot->setImageTexture("");
        return;
    }

    if (mSaving)
        mSaveNameEdit->setCaption(sender->getItemNameAt(pos));

    mCurrentSlot = NULL;
    unsigned int i=0;
    for (MWState::Character::SlotIterator it = mCurrentCharacter->begin(); it != mCurrentCharacter->end(); ++it, ++i)
    {
        if (i == pos)
            mCurrentSlot = &*it;
    }
    assert(mCurrentSlot && "Can't find selected slot");

    std::stringstream text;
    time_t time = mCurrentSlot->mTimeStamp;
    struct tm* timeinfo;
    timeinfo = localtime(&time);

    // Use system/environment locale settings for datetime formatting
    setlocale(LC_TIME, "");

    const int size=1024;
    char buffer[size];
    if (std::strftime(buffer, size, "%x %X", timeinfo) > 0)
        text << buffer << "\n";
    text << "Level " << mCurrentSlot->mProfile.mPlayerLevel << "\n";
    text << mCurrentSlot->mProfile.mPlayerCell << "\n";
    // text << "Time played: " << slot->mProfile.mTimePlayed << "\n";

    int hour = int(mCurrentSlot->mProfile.mInGameTime.mGameHour);
    bool pm = hour >= 12;
    if (hour >= 13) hour -= 12;
    if (hour == 0) hour = 12;

    text
            << mCurrentSlot->mProfile.mInGameTime.mDay << " "
            << MWBase::Environment::get().getWorld()->getMonthName(mCurrentSlot->mProfile.mInGameTime.mMonth)
            <<  " " << hour << " " << (pm ? "#{sSaveMenuHelp05}" : "#{sSaveMenuHelp04}");

    mInfoText->setCaptionWithReplacing(text.str());

    // Decode screenshot
    std::vector<char> data = mCurrentSlot->mProfile.mScreenshot; // MemoryDataStream doesn't work with const data :(
    Ogre::DataStreamPtr stream(new Ogre::MemoryDataStream(&data[0], data.size()));
    Ogre::Image image;
    image.load(stream, "jpg");

    const std::string textureName = "@savegame_screenshot";
    Ogre::TexturePtr texture;
    texture = Ogre::TextureManager::getSingleton().getByName(textureName);
    mScreenshot->setImageTexture("");
    if (texture.isNull())
    {
        texture = Ogre::TextureManager::getSingleton().createManual(textureName,
                  Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
                  Ogre::TEX_TYPE_2D,
                  image.getWidth(), image.getHeight(), 0, Ogre::PF_BYTE_RGBA, Ogre::TU_DYNAMIC_WRITE_ONLY);
    }
    texture->unload();
    texture->setWidth(image.getWidth());
    texture->setHeight(image.getHeight());
    texture->loadImage(image);

    mScreenshot->setImageTexture(textureName);
}