source/Irrlicht/COGLES2ExtensionHandler.cpp

   1 // Copyright (C) 2015 Patryk Nadrowski\r
   2 // Copyright (C) 2009-2010 Amundis\r
   3 // 2017 modified by Michael Zeilfelder (unifying extension handlers)\r
   4 // This file is part of the "Irrlicht Engine".\r
   5 // For conditions of distribution and use, see copyright notice in Irrlicht.h\r
   6 \r
   7 #include "COGLES2ExtensionHandler.h"\r
   8 \r
   9 #ifdef _IRR_COMPILE_WITH_OGLES2_\r
  10 \r
  11 #include "irrString.h"\r
  12 #include "SMaterial.h"\r
  13 #include "fast_atof.h"\r
  14 \r
  15 namespace irr\r
  16 {\r
  17 namespace video\r
  18 {\r
  19         void COGLES2ExtensionHandler::initExtensions()\r
  20         {\r
  21                 getGLVersion();\r
  22 \r
  23                 getGLExtensions();\r
  24 \r
  25                 GLint val=0;\r
  26                 glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &val);\r
  27                 Feature.MaxTextureUnits = static_cast<u8>(val);\r
  28 \r
  29         #ifdef GL_EXT_texture_filter_anisotropic\r
  30                 if (FeatureAvailable[IRR_GL_EXT_texture_filter_anisotropic])\r
  31                 {\r
  32                         glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &val);\r
  33                         MaxAnisotropy = static_cast<u8>(val);\r
  34                 }\r
  35         #endif\r
  36         #ifdef GL_MAX_ELEMENTS_INDICES\r
  37                 glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &val);\r
  38                 MaxIndices=val;\r
  39         #endif\r
  40                 glGetIntegerv(GL_MAX_TEXTURE_SIZE, &val);\r
  41                 MaxTextureSize=static_cast<u32>(val);\r
  42         #ifdef GL_EXT_texture_lod_bias\r
  43                 if (FeatureAvailable[IRR_EXT_texture_lod_bias])\r
  44                         glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &MaxTextureLODBias);\r
  45         #endif\r
  46                 glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, DimAliasedLine);\r
  47                 glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, DimAliasedPoint);\r
  48 \r
  49                 Feature.MaxTextureUnits = core::min_(Feature.MaxTextureUnits, static_cast<u8>(MATERIAL_MAX_TEXTURES));\r
  50                 Feature.ColorAttachment = 1;\r
  51         }\r
  52 \r
  53 } // end namespace video\r
  54 } // end namespace irr\r
  55 \r
  56 \r
  57 #endif // _IRR_COMPILE_WITH_OGLES2_\r