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