Line data    Source code

       1             : /* Copyright (C) 2022 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             : #include "precompiled.h"
      19             : 
      20             : #include "MaterialManager.h"
      21             : 
      22             : #include "graphics/PreprocessorWrapper.h"
      23             : #include "maths/MathUtil.h"
      24             : #include "maths/Vector4D.h"
      25             : #include "ps/CLogger.h"
      26             : #include "ps/ConfigDB.h"
      27             : #include "ps/CStrInternStatic.h"
      28             : #include "ps/Filesystem.h"
      29             : #include "ps/XML/Xeromyces.h"
      30             : #include "renderer/RenderingOptions.h"
      31             : 
      32             : #include <sstream>
      33             : 
      34           6 : CMaterialManager::CMaterialManager()
      35             : {
      36           6 :     qualityLevel = 5.0;
      37           6 :     CFG_GET_VAL("materialmgr.quality", qualityLevel);
      38           6 :     qualityLevel = Clamp(qualityLevel, 0.0f, 10.0f);
      39             : 
      40           6 :     if (VfsDirectoryExists(L"art/materials/") && !CXeromyces::AddValidator(g_VFS, "material", "art/materials/material.rng"))
      41           0 :         LOGERROR("CMaterialManager: failed to load grammar file 'art/materials/material.rng'");
      42           6 : }
      43             : 
      44           0 : CMaterial CMaterialManager::LoadMaterial(const VfsPath& pathname)
      45             : {
      46           0 :     if (pathname.empty())
      47           0 :         return CMaterial();
      48             : 
      49           0 :     std::map<VfsPath, CMaterial>::iterator iter = m_Materials.find(pathname);
      50           0 :     if (iter != m_Materials.end())
      51           0 :         return iter->second;
      52             : 
      53           0 :     CXeromyces xeroFile;
      54           0 :     if (xeroFile.Load(g_VFS, pathname, "material") != PSRETURN_OK)
      55           0 :         return CMaterial();
      56             : 
      57             :     #define EL(x) int el_##x = xeroFile.GetElementID(#x)
      58             :     #define AT(x) int at_##x = xeroFile.GetAttributeID(#x)
      59           0 :     EL(alpha_blending);
      60           0 :     EL(alternative);
      61           0 :     EL(define);
      62           0 :     EL(shader);
      63           0 :     EL(uniform);
      64           0 :     EL(renderquery);
      65           0 :     EL(required_texture);
      66           0 :     AT(effect);
      67           0 :     AT(if);
      68           0 :     AT(define);
      69           0 :     AT(quality);
      70           0 :     AT(material);
      71           0 :     AT(name);
      72           0 :     AT(value);
      73             :     #undef AT
      74             :     #undef EL
      75             : 
      76           0 :     CPreprocessorWrapper preprocessor;
      77           0 :     CMaterial material;
      78           0 :     material.AddStaticUniform("qualityLevel", CVector4D(qualityLevel, 0, 0, 0));
      79             : 
      80           0 :     XMBElement root = xeroFile.GetRoot();
      81           0 :     XERO_ITER_EL(root, node)
      82             :     {
      83           0 :         int token = node.GetNodeName();
      84           0 :         XMBAttributeList attrs = node.GetAttributes();
      85           0 :         if (token == el_alternative)
      86             :         {
      87           0 :             CStr cond = attrs.GetNamedItem(at_if);
      88           0 :             if (cond.empty() || !preprocessor.TestConditional(cond))
      89             :             {
      90           0 :                 cond = attrs.GetNamedItem(at_quality);
      91           0 :                 if (cond.empty())
      92           0 :                     continue;
      93             :                 else
      94             :                 {
      95           0 :                     if (cond.ToFloat() <= qualityLevel)
      96           0 :                         continue;
      97             :                 }
      98             :             }
      99             : 
     100           0 :             material = LoadMaterial(VfsPath("art/materials") / attrs.GetNamedItem(at_material).FromUTF8());
     101           0 :             break;
     102             :         }
     103           0 :         else if (token == el_alpha_blending)
     104             :         {
     105           0 :             material.SetUsesAlphaBlending(true);
     106             :         }
     107           0 :         else if (token == el_shader)
     108             :         {
     109           0 :             material.SetShaderEffect(attrs.GetNamedItem(at_effect));
     110             :         }
     111           0 :         else if (token == el_define)
     112             :         {
     113           0 :             material.AddShaderDefine(CStrIntern(attrs.GetNamedItem(at_name)), CStrIntern(attrs.GetNamedItem(at_value)));
     114             :         }
     115           0 :         else if (token == el_uniform)
     116             :         {
     117           0 :             std::stringstream str(attrs.GetNamedItem(at_value));
     118           0 :             CVector4D vec;
     119           0 :             str >> vec.X >> vec.Y >> vec.Z >> vec.W;
     120           0 :             material.AddStaticUniform(attrs.GetNamedItem(at_name).c_str(), vec);
     121             :         }
     122           0 :         else if (token == el_renderquery)
     123             :         {
     124           0 :             material.AddRenderQuery(attrs.GetNamedItem(at_name).c_str());
     125             :         }
     126           0 :         else if (token == el_required_texture)
     127             :         {
     128           0 :             material.AddRequiredSampler(attrs.GetNamedItem(at_name));
     129           0 :             if (!attrs.GetNamedItem(at_define).empty())
     130           0 :                 material.AddShaderDefine(CStrIntern(attrs.GetNamedItem(at_define)), str_1);
     131             :         }
     132             :     }
     133             : 
     134           0 :     m_Materials[pathname] = material;
     135           0 :     return material;
     136           3 : }