1 /* Copyright (C) 2015 Wildfire Games. 2 * This file is part of 0 A.D. 3 * 4 * 0 A.D. is free software: you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation, either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * 0 A.D. is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with 0 A.D. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef INCLUDED_TERRAINTEXTUREMANAGER 19 #define INCLUDED_TERRAINTEXTUREMANAGER 20 21 #include <map> 22 #include <memory> 23 #include <vector> 24 25 #include "lib/res/graphics/ogl_tex.h" 26 #include "lib/res/handle.h" 27 #include "lib/file/vfs/vfs_path.h" 28 #include "ps/CStr.h" 29 #include "ps/Singleton.h" 30 31 // access to sole CTerrainTextureManager object 32 #define g_TexMan CTerrainTextureManager::GetSingleton() 33 34 #define NUM_ALPHA_MAPS 14 35 36 class XMBElement; 37 class CXeromyces; 38 class CTerrainTextureEntry; 39 class CTerrainProperties; 40 41 typedef shared_ptr<CTerrainProperties> CTerrainPropertiesPtr; 42 43 class CTerrainGroup 44 { 45 // name of this terrain group (as specified by the terrain XML) 46 CStr m_Name; 47 // "index".. basically a bogus integer that can be used by ScEd to set texture 48 // priorities 49 size_t m_Index; 50 // list of textures of this type (found from the texture directory) 51 std::vector<CTerrainTextureEntry*> m_Terrains; 52 53 public: CTerrainGroup(CStr name,size_t index)54 CTerrainGroup(CStr name, size_t index): 55 m_Name(name), 56 m_Index(index) 57 {} 58 59 // Add a texture entry to this terrain type 60 void AddTerrain(CTerrainTextureEntry*); 61 // Remove a texture entry 62 void RemoveTerrain(CTerrainTextureEntry*); 63 GetIndex()64 size_t GetIndex() const 65 { return m_Index; } GetName()66 CStr GetName() const 67 { return m_Name; } 68 GetTerrains()69 const std::vector<CTerrainTextureEntry*> &GetTerrains() const 70 { return m_Terrains; } 71 }; 72 73 74 struct TerrainAlpha 75 { 76 // ogl_tex handle of composite alpha map (all the alpha maps packed into one texture) 77 Handle m_hCompositeAlphaMap; 78 // coordinates of each (untransformed) alpha map within the packed texture 79 struct { 80 float u0,u1,v0,v1; 81 } m_AlphaMapCoords[NUM_ALPHA_MAPS]; 82 }; 83 84 85 /////////////////////////////////////////////////////////////////////////////////////////// 86 // CTerrainTextureManager : manager class for all terrain texture objects 87 class CTerrainTextureManager : public Singleton<CTerrainTextureManager> 88 { 89 friend class CTerrainTextureEntry; 90 91 public: 92 typedef std::map<CStr, CTerrainGroup*> TerrainGroupMap; 93 typedef std::map<VfsPath, TerrainAlpha> TerrainAlphaMap; 94 95 private: 96 // All texture entries created by this class, for easy freeing now that 97 // textures may be in several STextureType's 98 std::vector<CTerrainTextureEntry*> m_TextureEntries; 99 100 TerrainGroupMap m_TerrainGroups; 101 102 TerrainAlphaMap m_TerrainAlphas; 103 104 size_t m_LastGroupIndex; 105 106 public: 107 // constructor, destructor 108 CTerrainTextureManager(); 109 ~CTerrainTextureManager(); 110 111 // Find all XML's in the directory (with subdirs) and try to load them as 112 // terrain XML's 113 int LoadTerrainTextures(); 114 115 void UnloadTerrainTextures(); 116 117 CTerrainTextureEntry* FindTexture(const CStr& tag) const; 118 119 // Create a texture object for a new terrain texture at path, using the 120 // property sheet props. 121 CTerrainTextureEntry* AddTexture(const CTerrainPropertiesPtr& props, const VfsPath& path); 122 123 // Remove the texture from all our maps and lists and delete it afterwards. 124 void DeleteTexture(CTerrainTextureEntry* entry); 125 126 // Find or create a new texture group. All terrain groups are owned by the 127 // texturemanager (TerrainTypeManager) 128 CTerrainGroup* FindGroup(const CStr& name); 129 GetGroups()130 const TerrainGroupMap& GetGroups() const 131 { return m_TerrainGroups; } 132 }; 133 134 135 #endif 136