/* ----------------------------------------------------------------------------- This source file is part of OGRE (Object-oriented Graphics Rendering Engine) For the latest info, see http://www.ogre3d.org/ Copyright (c) 2000-2009 Torus Knot Software Ltd Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------------- */ #include "OgreQuake3Level.h" #include "OgreLogManager.h" #include "OgreTextureManager.h" namespace Ogre { //----------------------------------------------------------------------- Quake3Level::Quake3Level() { } //----------------------------------------------------------------------- void Quake3Level::loadHeaderFromStream(DataStreamPtr& inStream) { // Load just the header bsp_header_t* pHeader = OGRE_ALLOC_T(bsp_header_t, 1, MEMCATEGORY_RESOURCE); inStream->read(pHeader, sizeof(bsp_header_t)); mChunk = MemoryDataStreamPtr( OGRE_NEW MemoryDataStream(pHeader, sizeof(bsp_header_t), false)); // Grab all the counts, header only initialise(true); // Delete manually since delete and delete[] (as used by MemoryDataStream) // are not compatible OGRE_FREE(pHeader, MEMCATEGORY_RESOURCE); } //----------------------------------------------------------------------- void Quake3Level::loadFromStream(DataStreamPtr& stream) { mChunk = MemoryDataStreamPtr(OGRE_NEW MemoryDataStream(stream)); initialise(); #ifdef _DEBUG dumpContents(); #endif } //----------------------------------------------------------------------- // byte swapping functions void SwapFourBytes(uint32* dw) { uint32 tmp; tmp = (*dw & 0x000000FF); tmp = ((*dw & 0x0000FF00) >> 0x08) | (tmp << 0x08); tmp = ((*dw & 0x00FF0000) >> 0x10) | (tmp << 0x08); tmp = ((*dw & 0xFF000000) >> 0x18) | (tmp << 0x08); memcpy (dw, &tmp, sizeof(uint32)); } //----------------------------------------------------------------------- void SwapFourBytesGrup (uint32* src, int size) { uint32* ptr = (uint32*)src; int i; for (i = 0; i < size/4; ++i) { SwapFourBytes (&ptr[i]); } } //----------------------------------------------------------------------- void Quake3Level::initialise(bool headerOnly) { mHeader = (bsp_header_t*)mChunk->getPtr(); // Header counts initialiseCounts(); // Data pointers if (headerOnly) { mLumpStart = 0; } else { mLumpStart = ((unsigned char*)mHeader) + sizeof(mHeader); initialisePointers(); } #if OGRE_ENDIAN == OGRE_ENDIAN_BIG // swap header SwapFourBytes ((uint32*)&mHeader->version); #endif } //----------------------------------------------------------------------- void Quake3Level::initialiseCounts(void) { mNumEntities = getLumpSize(BSP_ENTITIES_LUMP); mNumElements = getLumpSize(BSP_ELEMENTS_LUMP) / sizeof(int); mNumFaces = getLumpSize(BSP_FACES_LUMP) / sizeof(bsp_face_t); mNumLeafFaces = getLumpSize(BSP_LFACES_LUMP) / sizeof(int); mNumLeaves = getLumpSize(BSP_LEAVES_LUMP) / sizeof(bsp_leaf_t); mNumLightmaps = getLumpSize(BSP_LIGHTMAPS_LUMP)/BSP_LIGHTMAP_BANKSIZE; mNumModels = getLumpSize(BSP_MODELS_LUMP) / sizeof(bsp_model_t); mNumNodes = getLumpSize(BSP_NODES_LUMP) / sizeof(bsp_node_t); mNumPlanes = getLumpSize(BSP_PLANES_LUMP)/sizeof(bsp_plane_t); mNumShaders = getLumpSize(BSP_SHADERS_LUMP)/sizeof(bsp_shader_t); mNumVertices = getLumpSize(BSP_VERTICES_LUMP)/sizeof(bsp_vertex_t); mNumLeafBrushes = getLumpSize(BSP_LBRUSHES_LUMP)/sizeof(int); mNumBrushes = getLumpSize(BSP_BRUSH_LUMP)/sizeof(bsp_brush_t); mNumBrushSides = getLumpSize(BSP_BRUSHSIDES_LUMP)/sizeof(bsp_brushside_t); } //----------------------------------------------------------------------- void Quake3Level::initialisePointers(void) { mEntities = (unsigned char*)getLump(BSP_ENTITIES_LUMP); mElements = (int*)getLump(BSP_ELEMENTS_LUMP); mFaces = (bsp_face_t*)getLump(BSP_FACES_LUMP); mLeafFaces = (int*)getLump(BSP_LFACES_LUMP); mLeaves = (bsp_leaf_t*)getLump(BSP_LEAVES_LUMP); mLightmaps = (unsigned char*)getLump(BSP_LIGHTMAPS_LUMP); mModels = (bsp_model_t*)getLump(BSP_MODELS_LUMP); mNodes = (bsp_node_t*)getLump(BSP_NODES_LUMP); mPlanes = (bsp_plane_t*) getLump(BSP_PLANES_LUMP); mShaders = (bsp_shader_t*) getLump(BSP_SHADERS_LUMP); mVis = (bsp_vis_t*)getLump(BSP_VISIBILITY_LUMP); mVertices = (bsp_vertex_t*) getLump(BSP_VERTICES_LUMP); mLeafBrushes = (int*)getLump(BSP_LBRUSHES_LUMP); mBrushes = (bsp_brush_t*) getLump(BSP_BRUSH_LUMP); mBrushSides = (bsp_brushside_t*) getLump(BSP_BRUSHSIDES_LUMP); #if OGRE_ENDIAN == OGRE_ENDIAN_BIG SwapFourBytesGrup ((uint32*)mElements, mNumElements*sizeof(int)); SwapFourBytesGrup ((uint32*)mFaces, mNumFaces*sizeof(bsp_face_t)); SwapFourBytesGrup ((uint32*)mLeafFaces, mNumLeafFaces*sizeof(int)); SwapFourBytesGrup ((uint32*)mLeaves, mNumLeaves*sizeof(bsp_leaf_t)); SwapFourBytesGrup ((uint32*)mModels, mNumModels*sizeof(bsp_model_t)); SwapFourBytesGrup ((uint32*)mNodes, mNumNodes*sizeof(bsp_node_t)); SwapFourBytesGrup ((uint32*)mPlanes, mNumPlanes*sizeof(bsp_plane_t)); for (int i=0; i < mNumShaders; ++i) { SwapFourBytes((uint32*)&mShaders[i].surface_flags); SwapFourBytes((uint32*)&mShaders[i].content_flags); } SwapFourBytes((uint32*)&mVis->cluster_count); SwapFourBytes((uint32*)&mVis->row_size); SwapFourBytesGrup ((uint32*)mVertices, mNumVertices*sizeof(bsp_vertex_t)); SwapFourBytesGrup ((uint32*)mLeafBrushes, mNumLeafBrushes*sizeof(int)); SwapFourBytesGrup ((uint32*)mBrushes, mNumBrushes*sizeof(bsp_brush_t)); SwapFourBytesGrup ((uint32*)mBrushSides, mNumBrushSides*sizeof(bsp_brushside_t)); #endif } //----------------------------------------------------------------------- void* Quake3Level::getLump(int lumpType) { if (mLumpStart) { #if OGRE_ENDIAN == OGRE_ENDIAN_BIG // swap lump offset SwapFourBytes ((uint32*)&mHeader->lumps[lumpType].offset); #endif return (unsigned char*)mHeader + mHeader->lumps[lumpType].offset; } else { return 0; } } //----------------------------------------------------------------------- int Quake3Level::getLumpSize(int lumpType) { #if OGRE_ENDIAN == OGRE_ENDIAN_BIG // swap lump size SwapFourBytes ((uint32*)&mHeader->lumps[lumpType].size); #endif return mHeader->lumps[lumpType].size; } //----------------------------------------------------------------------- void Quake3Level::dumpContents(void) { std::ofstream of; of.open("Quake3Level.log"); of << "Quake3 level statistics" << std::endl; of << "-----------------------" << std::endl; of << "Entities : " << mNumEntities << std::endl; of << "Faces : " << mNumFaces << std::endl; of << "Leaf Faces : " << mNumLeafFaces << std::endl; of << "Leaves : " << mNumLeaves << std::endl; of << "Lightmaps : " << mNumLightmaps << std::endl; of << "Elements : " << mNumElements << std::endl; of << "Models : " << mNumModels << std::endl; of << "Nodes : " << mNumNodes << std::endl; of << "Planes : " << mNumPlanes << std::endl; of << "Shaders : " << mNumShaders << std::endl; of << "Vertices : " << mNumVertices << std::endl; of << "Vis Clusters : " << mVis->cluster_count << std::endl; of << std::endl; of << "-= Shaders =-"; of << std::endl; for (int i = 0; i < mNumShaders; ++i) { of << "Shader " << i << ": " << mShaders[i].name << std::endl; } of << std::endl; of << "-= Entities =-"; of << std::endl; char* strEnt = strtok((char*)mEntities, "\0"); while (strEnt != 0) { of << strEnt << std::endl; strEnt = strtok(0, "\0"); } of.close(); } //----------------------------------------------------------------------- void Quake3Level::extractLightmaps(void) const { // Lightmaps are always 128x128x24 (RGB) unsigned char* pLightmap = mLightmaps; for (int i = 0; i < mNumLightmaps; ++i) { StringUtil::StrStreamType name; name << "@lightmap" << i; // Load, no mipmaps, brighten by factor 2.5 DataStreamPtr stream(OGRE_NEW MemoryDataStream(pLightmap, 128 * 128 * 3, false)); Image img; img.loadRawData( stream, 128, 128, PF_BYTE_RGB ); TextureManager::getSingleton().loadImage( name.str(), ResourceGroupManager::getSingleton().getWorldResourceGroupName(), img, TEX_TYPE_2D, 0, 4.0f ); pLightmap += BSP_LIGHTMAP_BANKSIZE; } } //----------------------------------------------------------------------- }