source/Irrlicht/COGLESExtensionHandler.h

   1 // Copyright (C) 2008 Christian Stehno\r
   2 // Heavily based on the OpenGL driver implemented by Nikolaus Gebhardt\r
   3 // This file is part of the "Irrlicht Engine".\r
   4 // For conditions of distribution and use, see copyright notice in Irrlicht.h\r
   5 \r
   6 #ifndef __C_OGLES_EXTENSION_HANDLER_H_INCLUDED__\r
   7 #define __C_OGLES_EXTENSION_HANDLER_H_INCLUDED__\r
   8 \r
   9 \r
  10 #ifdef _IRR_COMPILE_WITH_OGLES1_\r
  11 \r
  12 #include "EDriverFeatures.h"\r
  13 #include "irrTypes.h"\r
  14 #include "os.h"\r
  15 \r
  16 #include "COGLESCommon.h"\r
  17 \r
  18 #include "COGLESCoreExtensionHandler.h"\r
  19 \r
  20 namespace irr\r
  21 {\r
  22 namespace video\r
  23 {\r
  24 \r
  25         class COGLES1ExtensionHandler : public COGLESCoreExtensionHandler\r
  26         {\r
  27         public:\r
  28                 COGLES1ExtensionHandler();\r
  29 \r
  30                 void initExtensions();\r
  31 \r
  32                 bool queryFeature(video::E_VIDEO_DRIVER_FEATURE feature) const\r
  33                 {\r
  34                         switch (feature)\r
  35                         {\r
  36                         case EVDF_RENDER_TO_TARGET:\r
  37                         case EVDF_HARDWARE_TL:\r
  38                         case EVDF_MULTITEXTURE:\r
  39                         case EVDF_BILINEAR_FILTER:\r
  40                         case EVDF_MIP_MAP:\r
  41                         case EVDF_TEXTURE_NSQUARE:\r
  42                         case EVDF_STENCIL_BUFFER:\r
  43                         case EVDF_ALPHA_TO_COVERAGE:\r
  44                         case EVDF_COLOR_MASK:\r
  45                         case EVDF_POLYGON_OFFSET:\r
  46                         case EVDF_TEXTURE_MATRIX:\r
  47                                 return true;\r
  48                         case EVDF_TEXTURE_NPOT:\r
  49                                 return FeatureAvailable[IRR_GL_APPLE_texture_2D_limited_npot] || FeatureAvailable[IRR_GL_OES_texture_npot];\r
  50                         case EVDF_MIP_MAP_AUTO_UPDATE:\r
  51                                 return Version>100;\r
  52                         case EVDF_BLEND_OPERATIONS:\r
  53                                 return FeatureAvailable[IRR_GL_OES_blend_subtract];\r
  54                         case EVDF_BLEND_SEPARATE:\r
  55                                 return FeatureAvailable[IRR_GL_OES_blend_func_separate];\r
  56                         case EVDF_FRAMEBUFFER_OBJECT:\r
  57                                 return FeatureAvailable[IRR_GL_OES_framebuffer_object];\r
  58                         case EVDF_VERTEX_BUFFER_OBJECT:\r
  59                                 return Version>100;\r
  60                         case EVDF_TEXTURE_COMPRESSED_DXT:\r
  61                                 return false; // NV Tegra need improvements here\r
  62                         case EVDF_TEXTURE_COMPRESSED_PVRTC:\r
  63                                 return FeatureAvailable[IRR_GL_IMG_texture_compression_pvrtc];\r
  64                         case EVDF_TEXTURE_COMPRESSED_ETC1:\r
  65                                 return FeatureAvailable[IRR_GL_OES_compressed_ETC1_RGB8_texture];\r
  66                         case EVDF_TEXTURE_CUBEMAP:\r
  67                                 return FeatureAvailable[IRR_GL_OES_texture_cube_map];\r
  68                         default:\r
  69                                 return true;\r
  70                         };\r
  71                 }\r
  72 \r
  73                 inline void irrGlActiveTexture(GLenum texture)\r
  74                 {\r
  75                         glActiveTexture(texture);\r
  76                 }\r
  77 \r
  78                 inline void irrGlCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border,\r
  79                         GLsizei imageSize, const void* data)\r
  80                 {\r
  81                         glCompressedTexImage2D(target, level, internalformat, width, height, border, imageSize, data);\r
  82                 }\r
  83 \r
  84                 inline void irrGlCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,\r
  85                         GLenum format, GLsizei imageSize, const void* data)\r
  86                 {\r
  87                         glCompressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, imageSize, data);\r
  88                 }\r
  89 \r
  90                 inline void irrGlUseProgram(GLuint prog)\r
  91                 {\r
  92                 }\r
  93 \r
  94                 inline void irrGlBindFramebuffer(GLenum target, GLuint framebuffer)\r
  95                 {\r
  96 #ifdef _IRR_OGLES1_USE_EXTPOINTER_\r
  97                         if (pGlBindFramebufferOES)\r
  98                                 pGlBindFramebufferOES(target, framebuffer);\r
  99 #elif defined(GL_OES_framebuffer_object)\r
 100                         glBindFramebufferOES(target, framebuffer);\r
 101 #endif\r
 102                 }\r
 103 \r
 104                 inline void irrGlDeleteFramebuffers(GLsizei n, const GLuint *framebuffers)\r
 105                 {\r
 106 #ifdef _IRR_OGLES1_USE_EXTPOINTER_\r
 107                         if (pGlDeleteFramebuffersOES)\r
 108                                 pGlDeleteFramebuffersOES(n, framebuffers);\r
 109 #elif defined(GL_OES_framebuffer_object)\r
 110                         glDeleteFramebuffersOES(n, framebuffers);\r
 111 #endif\r
 112                 }\r
 113 \r
 114                 inline void irrGlGenFramebuffers(GLsizei n, GLuint *framebuffers)\r
 115                 {\r
 116 #ifdef _IRR_OGLES1_USE_EXTPOINTER_\r
 117                         if (pGlGenFramebuffersOES)\r
 118                                 pGlGenFramebuffersOES(n, framebuffers);\r
 119 #elif defined(GL_OES_framebuffer_object)\r
 120                         glGenFramebuffersOES(n, framebuffers);\r
 121 #endif\r
 122                 }\r
 123 \r
 124                 inline GLenum irrGlCheckFramebufferStatus(GLenum target)\r
 125                 {\r
 126 #ifdef _IRR_OGLES1_USE_EXTPOINTER_\r
 127                         if (pGlCheckFramebufferStatusOES)\r
 128                                 return pGlCheckFramebufferStatusOES(target);\r
 129                         else\r
 130                                 return 0;\r
 131 #elif defined(GL_OES_framebuffer_object)\r
 132                         return glCheckFramebufferStatusOES(target);\r
 133 #else\r
 134                         return 0;\r
 135 #endif\r
 136                 }\r
 137 \r
 138                 inline void irrGlFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)\r
 139                 {\r
 140 #ifdef _IRR_OGLES1_USE_EXTPOINTER_\r
 141                         if (pGlFramebufferTexture2DOES)\r
 142                                 pGlFramebufferTexture2DOES(target, attachment, textarget, texture, level);\r
 143 #elif defined(GL_OES_framebuffer_object)\r
 144                         glFramebufferTexture2DOES(target, attachment, textarget, texture, level);\r
 145 #endif\r
 146                 }\r
 147 \r
 148                 inline void irrGlGenerateMipmap(GLenum target)\r
 149                 {\r
 150 #ifdef _IRR_OGLES1_USE_EXTPOINTER_\r
 151                         if (pGlGenerateMipmapOES)\r
 152                                 pGlGenerateMipmapOES(target);\r
 153 #elif defined(GL_OES_framebuffer_object)\r
 154                         glGenerateMipmapOES(target);\r
 155 #endif\r
 156                 }\r
 157 \r
 158                 inline void irrGlActiveStencilFace(GLenum face)\r
 159                 {\r
 160                 }\r
 161 \r
 162                 inline void irrGlDrawBuffer(GLenum mode)\r
 163                 {\r
 164                 }\r
 165 \r
 166                 inline void irrGlDrawBuffers(GLsizei n, const GLenum *bufs)\r
 167                 {\r
 168                 }\r
 169 \r
 170                 inline void irrGlBlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)\r
 171                 {\r
 172 #ifdef _IRR_OGLES1_USE_EXTPOINTER_\r
 173                         if (pGlBlendFuncSeparateOES)\r
 174                                 pGlBlendFuncSeparateOES(srcRGB, dstRGB, srcAlpha, dstAlpha);\r
 175 #elif defined(GL_OES_blend_func_separate)\r
 176                         glBlendFuncSeparateOES(srcRGB, dstRGB, srcAlpha, dstAlpha);\r
 177 #endif\r
 178                 }\r
 179 \r
 180                 inline void irrGlBlendEquation(GLenum mode)\r
 181                 {\r
 182 #ifdef _IRR_OGLES1_USE_EXTPOINTER_\r
 183                         if (pGlBlendEquationOES)\r
 184                                 pGlBlendEquationOES(mode);\r
 185 #elif defined(GL_OES_blend_subtract)\r
 186                         glBlendEquationOES(mode);\r
 187 #endif\r
 188                 }\r
 189 \r
 190                 inline void irrGlEnableIndexed(GLenum target, GLuint index)\r
 191                 {\r
 192                 }\r
 193 \r
 194                 inline void irrGlDisableIndexed(GLenum target, GLuint index)\r
 195                 {\r
 196                 }\r
 197 \r
 198                 inline void irrGlColorMaskIndexed(GLuint buf, GLboolean r, GLboolean g, GLboolean b, GLboolean a)\r
 199                 {\r
 200                 }\r
 201 \r
 202                 inline void irrGlBlendFuncIndexed(GLuint buf, GLenum src, GLenum dst)\r
 203                 {\r
 204                 }\r
 205 \r
 206                 inline void irrGlBlendFuncSeparateIndexed(GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)\r
 207                 {\r
 208                 }\r
 209 \r
 210                 inline void irrGlBlendEquationIndexed(GLuint buf, GLenum mode)\r
 211                 {\r
 212                 }\r
 213 \r
 214                 inline void irrGlBlendEquationSeparateIndexed(GLuint buf, GLenum modeRGB, GLenum modeAlpha)\r
 215                 {\r
 216                 }\r
 217 \r
 218         protected:\r
 219 \r
 220                 u8 MaxUserClipPlanes;\r
 221                 u8 MaxLights;\r
 222 \r
 223 #if defined(_IRR_OGLES1_USE_EXTPOINTER_)\r
 224                 PFNGLBLENDEQUATIONOESPROC pGlBlendEquationOES;\r
 225                 PFNGLBLENDFUNCSEPARATEOESPROC pGlBlendFuncSeparateOES;\r
 226                 PFNGLBINDFRAMEBUFFEROESPROC pGlBindFramebufferOES;\r
 227                 PFNGLDELETEFRAMEBUFFERSOESPROC pGlDeleteFramebuffersOES;\r
 228                 PFNGLGENFRAMEBUFFERSOESPROC pGlGenFramebuffersOES;\r
 229                 PFNGLCHECKFRAMEBUFFERSTATUSOESPROC pGlCheckFramebufferStatusOES;\r
 230                 PFNGLFRAMEBUFFERTEXTURE2DOESPROC pGlFramebufferTexture2DOES;\r
 231                 PFNGLGENERATEMIPMAPOESPROC pGlGenerateMipmapOES;\r
 232 #endif\r
 233         };\r
 234 \r
 235 }\r
 236 }\r
 237 \r
 238 #endif\r
 239 #endif\r