void COpenGLExtensionHandler::initExtensions(bool stencilBuffer)
{
const f32 ogl_ver = core::fast_atof(reinterpret_cast<const c8*>(glGetString(GL_VERSION)));
Version = static_cast<u16>(core::floor32(ogl_ver)*100+core::round32(core::fract(ogl_ver)*10.0f));
if ( Version >= 102)
os::Printer::log("OpenGL driver version is 1.2 or better.", ELL_INFORMATION);
else
os::Printer::log("OpenGL driver version is not 1.2 or better.", ELL_WARNING);
{
const char* t = reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS));
size_t len = 0;
c8 *str = 0;
if (t)
{
len = strlen(t);
str = new c8[len+1];
}
c8* p = str;
for (size_t i=0; i<len; ++i)
{
str[i] = static_cast<char>(t[i]);
if (str[i] == ' ')
{
str[i] = 0;
for (u32 j=0; j<IRR_OpenGL_Feature_Count; ++j)
{
if (!strcmp(OpenGLFeatureStrings[j], p))
{
FeatureAvailable[j] = true;
break;
}
}
p = p + strlen(p) + 1;
}
}
delete [] str;
}
MultiTextureExtension = FeatureAvailable[IRR_ARB_multitexture];
TextureCompressionExtension = FeatureAvailable[IRR_ARB_texture_compression];
StencilBuffer=stencilBuffer;
#ifdef _IRR_WINDOWS_API_
// get multitexturing function pointers
pGlActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC) wglGetProcAddress("glActiveTextureARB");
pGlClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC) wglGetProcAddress("glClientActiveTextureARB");
// get fragment and vertex program function pointers
pGlGenProgramsARB = (PFNGLGENPROGRAMSARBPROC) wglGetProcAddress("glGenProgramsARB");
pGlGenProgramsNV = (PFNGLGENPROGRAMSNVPROC) wglGetProcAddress("glGenProgramsNV");
pGlBindProgramARB = (PFNGLBINDPROGRAMARBPROC) wglGetProcAddress("glBindProgramARB");
pGlBindProgramNV = (PFNGLBINDPROGRAMNVPROC) wglGetProcAddress("glBindProgramNV");
pGlProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC) wglGetProcAddress("glProgramStringARB");
pGlLoadProgramNV = (PFNGLLOADPROGRAMNVPROC) wglGetProcAddress("glLoadProgramNV");
pGlDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC) wglGetProcAddress("glDeleteProgramsARB");
pGlDeleteProgramsNV = (PFNGLDELETEPROGRAMSNVPROC) wglGetProcAddress("glDeleteProgramsNV");
pGlProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) wglGetProcAddress("glProgramLocalParameter4fvARB");
pGlCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC) wglGetProcAddress("glCreateShaderObjectARB");
pGlCreateShader = (PFNGLCREATESHADERPROC) wglGetProcAddress("glCreateShader");
pGlShaderSourceARB = (PFNGLSHADERSOURCEARBPROC) wglGetProcAddress("glShaderSourceARB");
pGlShaderSource = (PFNGLSHADERSOURCEPROC) wglGetProcAddress("glShaderSource");
pGlCompileShaderARB = (PFNGLCOMPILESHADERARBPROC) wglGetProcAddress("glCompileShaderARB");
pGlCompileShader = (PFNGLCOMPILESHADERPROC) wglGetProcAddress("glCompileShader");
pGlCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC) wglGetProcAddress("glCreateProgramObjectARB");
pGlCreateProgram = (PFNGLCREATEPROGRAMPROC) wglGetProcAddress("glCreateProgram");
pGlAttachObjectARB = (PFNGLATTACHOBJECTARBPROC) wglGetProcAddress("glAttachObjectARB");
pGlAttachShader = (PFNGLATTACHSHADERPROC) wglGetProcAddress("glAttachShader");
pGlLinkProgramARB = (PFNGLLINKPROGRAMARBPROC) wglGetProcAddress("glLinkProgramARB");
pGlLinkProgram = (PFNGLLINKPROGRAMPROC) wglGetProcAddress("glLinkProgram");
pGlUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC) wglGetProcAddress("glUseProgramObjectARB");
pGlUseProgram = (PFNGLUSEPROGRAMPROC) wglGetProcAddress("glUseProgram");
pGlDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC) wglGetProcAddress("glDeleteObjectARB");
pGlDeleteProgram = (PFNGLDELETEPROGRAMPROC) wglGetProcAddress("glDeleteProgram");
pGlDeleteShader = (PFNGLDELETESHADERPROC) wglGetProcAddress("glDeleteShader");
pGlGetAttachedShaders = (PFNGLGETATTACHEDSHADERSPROC) wglGetProcAddress("glGetAttachedShaders");
pGlGetAttachedObjectsARB = (PFNGLGETATTACHEDOBJECTSARBPROC) wglGetProcAddress("glGetAttachedObjectsARB");
pGlGetInfoLogARB = (PFNGLGETINFOLOGARBPROC) wglGetProcAddress("glGetInfoLogARB");
pGlGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC) wglGetProcAddress("glGetShaderInfoLog");
pGlGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC) wglGetProcAddress("glGetProgramInfoLog");
pGlGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC) wglGetProcAddress("glGetObjectParameterivARB");
pGlGetShaderiv = (PFNGLGETSHADERIVPROC) wglGetProcAddress("glGetShaderiv");
pGlGetProgramiv = (PFNGLGETPROGRAMIVPROC) wglGetProcAddress("glGetProgramiv");
pGlGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC) wglGetProcAddress("glGetUniformLocationARB");
pGlGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC) wglGetProcAddress("glGetUniformLocation");
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC) wglGetProcAddress("glUniform4fvARB");
pGlUniform1ivARB = (PFNGLUNIFORM1IVARBPROC) wglGetProcAddress("glUniform1ivARB");
pGlUniform1fvARB = (PFNGLUNIFORM1FVARBPROC) wglGetProcAddress("glUniform1fvARB");
pGlUniform2fvARB = (PFNGLUNIFORM2FVARBPROC) wglGetProcAddress("glUniform2fvARB");
pGlUniform3fvARB = (PFNGLUNIFORM3FVARBPROC) wglGetProcAddress("glUniform3fvARB");
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC) wglGetProcAddress("glUniformMatrix2fvARB");
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC) wglGetProcAddress("glUniformMatrix3fvARB");
pGlUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC) wglGetProcAddress("glUniformMatrix4fvARB");
pGlGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC) wglGetProcAddress("glGetActiveUniformARB");
pGlGetActiveUniform = (PFNGLGETACTIVEUNIFORMPROC) wglGetProcAddress("glGetActiveUniform");
// get point parameter extension
pGlPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC) wglGetProcAddress("glPointParameterfARB");
pGlPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC) wglGetProcAddress("glPointParameterfvARB");
// get stencil extension
pGlStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC) wglGetProcAddress("glStencilFuncSeparate");
pGlStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC) wglGetProcAddress("glStencilOpSeparate");
pGlStencilFuncSeparateATI = (PFNGLSTENCILFUNCSEPARATEATIPROC) wglGetProcAddress("glStencilFuncSeparateATI");
pGlStencilOpSeparateATI = (PFNGLSTENCILOPSEPARATEATIPROC) wglGetProcAddress("glStencilOpSeparateATI");
// compressed textures
pGlCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC) wglGetProcAddress("glCompressedTexImage2D");
// FrameBufferObjects
pGlBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC) wglGetProcAddress("glBindFramebufferEXT");
pGlDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC) wglGetProcAddress("glDeleteFramebuffersEXT");
pGlGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC) wglGetProcAddress("glGenFramebuffersEXT");
pGlCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC) wglGetProcAddress("glCheckFramebufferStatusEXT");
pGlFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC) wglGetProcAddress("glFramebufferTexture2DEXT");
pGlBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC) wglGetProcAddress("glBindRenderbufferEXT");
pGlDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC) wglGetProcAddress("glDeleteRenderbuffersEXT");
pGlGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC) wglGetProcAddress("glGenRenderbuffersEXT");
pGlRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC) wglGetProcAddress("glRenderbufferStorageEXT");
pGlFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC) wglGetProcAddress("glFramebufferRenderbufferEXT");
pGlDrawBuffersARB = (PFNGLDRAWBUFFERSARBPROC) wglGetProcAddress("glDrawBuffersARB");
pGlDrawBuffersATI = (PFNGLDRAWBUFFERSATIPROC) wglGetProcAddress("glDrawBuffersATI");
// get vertex buffer extension
pGlGenBuffersARB = (PFNGLGENBUFFERSARBPROC) wglGetProcAddress("glGenBuffersARB");
pGlBindBufferARB = (PFNGLBINDBUFFERARBPROC) wglGetProcAddress("glBindBufferARB");
pGlBufferDataARB = (PFNGLBUFFERDATAARBPROC) wglGetProcAddress("glBufferDataARB");
pGlDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC) wglGetProcAddress("glDeleteBuffersARB");
pGlBufferSubDataARB= (PFNGLBUFFERSUBDATAARBPROC) wglGetProcAddress("glBufferSubDataARB");
pGlGetBufferSubDataARB= (PFNGLGETBUFFERSUBDATAARBPROC)wglGetProcAddress("glGetBufferSubDataARB");
pGlMapBufferARB= (PFNGLMAPBUFFERARBPROC) wglGetProcAddress("glMapBufferARB");
pGlUnmapBufferARB= (PFNGLUNMAPBUFFERARBPROC) wglGetProcAddress("glUnmapBufferARB");
pGlIsBufferARB= (PFNGLISBUFFERARBPROC) wglGetProcAddress("glIsBufferARB");
pGlGetBufferParameterivARB= (PFNGLGETBUFFERPARAMETERIVARBPROC) wglGetProcAddress("glGetBufferParameterivARB");
pGlGetBufferPointervARB= (PFNGLGETBUFFERPOINTERVARBPROC) wglGetProcAddress("glGetBufferPointervARB");
pGlProvokingVertexARB= (PFNGLPROVOKINGVERTEXPROC) wglGetProcAddress("glProvokingVertex");
pGlProvokingVertexEXT= (PFNGLPROVOKINGVERTEXEXTPROC) wglGetProcAddress("glProvokingVertexEXT");
pGlColorMaskIndexedEXT= (PFNGLCOLORMASKINDEXEDEXTPROC) wglGetProcAddress("glColorMaskIndexedEXT");
pGlEnableIndexedEXT= (PFNGLENABLEINDEXEDEXTPROC) wglGetProcAddress("glEnableIndexedEXT");
pGlDisableIndexedEXT= (PFNGLDISABLEINDEXEDEXTPROC) wglGetProcAddress("glDisableIndexedEXT");
pGlBlendFuncIndexedAMD= (PFNGLBLENDFUNCINDEXEDAMDPROC) wglGetProcAddress("glBlendFuncIndexedAMD");
pGlBlendFunciARB= (PFNGLBLENDFUNCIPROC) wglGetProcAddress("glBlendFunciARB");
pGlProgramParameteriARB= (PFNGLPROGRAMPARAMETERIARBPROC) wglGetProcAddress("glProgramParameteriARB");
pGlProgramParameteriEXT= (PFNGLPROGRAMPARAMETERIEXTPROC) wglGetProcAddress("glProgramParameteriEXT");
// occlusion query
pGlGenQueriesARB = (PFNGLGENQUERIESARBPROC) wglGetProcAddress("glGenQueriesARB");
pGlDeleteQueriesARB = (PFNGLDELETEQUERIESARBPROC) wglGetProcAddress("glDeleteQueriesARB");
pGlIsQueryARB = (PFNGLISQUERYARBPROC) wglGetProcAddress("glIsQueryARB");
pGlBeginQueryARB = (PFNGLBEGINQUERYARBPROC) wglGetProcAddress("glBeginQueryARB");
pGlEndQueryARB = (PFNGLENDQUERYARBPROC) wglGetProcAddress("glEndQueryARB");
pGlGetQueryivARB = (PFNGLGETQUERYIVARBPROC) wglGetProcAddress("glGetQueryivARB");
pGlGetQueryObjectivARB = (PFNGLGETQUERYOBJECTIVARBPROC) wglGetProcAddress("glGetQueryObjectivARB");
pGlGetQueryObjectuivARB = (PFNGLGETQUERYOBJECTUIVARBPROC) wglGetProcAddress("glGetQueryObjectuivARB");
pGlGenOcclusionQueriesNV = (PFNGLGENOCCLUSIONQUERIESNVPROC) wglGetProcAddress("glGenOcclusionQueriesNV");
pGlDeleteOcclusionQueriesNV = (PFNGLDELETEOCCLUSIONQUERIESNVPROC) wglGetProcAddress("glDeleteOcclusionQueriesNV");
pGlIsOcclusionQueryNV = (PFNGLISOCCLUSIONQUERYNVPROC) wglGetProcAddress("glIsOcclusionQueryNV");
pGlBeginOcclusionQueryNV = (PFNGLBEGINOCCLUSIONQUERYNVPROC) wglGetProcAddress("glBeginOcclusionQueryNV");
pGlEndOcclusionQueryNV = (PFNGLENDOCCLUSIONQUERYNVPROC) wglGetProcAddress("glEndOcclusionQueryNV");
pGlGetOcclusionQueryivNV = (PFNGLGETOCCLUSIONQUERYIVNVPROC) wglGetProcAddress("glGetOcclusionQueryivNV");
pGlGetOcclusionQueryuivNV = (PFNGLGETOCCLUSIONQUERYUIVNVPROC) wglGetProcAddress("glGetOcclusionQueryuivNV");
#elif defined(_IRR_COMPILE_WITH_X11_DEVICE_) || defined (_IRR_COMPILE_WITH_SDL_DEVICE_)
#ifdef _IRR_OPENGL_USE_EXTPOINTER_
#if defined(_IRR_COMPILE_WITH_SDL_DEVICE_) && !defined(_IRR_COMPILE_WITH_X11_DEVICE_)
#define IRR_OGL_LOAD_EXTENSION(x) SDL_GL_GetProcAddress(reinterpret_cast<const char*>(x))
#else
// Accessing the correct function is quite complex
// All libraries should support the ARB version, however
// since GLX 1.4 the non-ARB version is the official one
// So we have to check the runtime environment and
// choose the proper symbol
// In case you still have problems please enable the
// next line by uncommenting it
// #define _IRR_GETPROCADDRESS_WORKAROUND_
#ifndef _IRR_GETPROCADDRESS_WORKAROUND_
__GLXextFuncPtr (*IRR_OGL_LOAD_EXTENSION)(const GLubyte*)=0;
#ifdef GLX_VERSION_1_4
int major=0,minor=0;
if (glXGetCurrentDisplay())
glXQueryVersion(glXGetCurrentDisplay(), &major, &minor);
if ((major>1) || (minor>3))
IRR_OGL_LOAD_EXTENSION=glXGetProcAddress;
else
#endif
IRR_OGL_LOAD_EXTENSION=glXGetProcAddressARB;
#else
#define IRR_OGL_LOAD_EXTENSION glXGetProcAddressARB
#endif
#endif
pGlActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glActiveTextureARB"));
pGlClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glClientActiveTextureARB"));
// get fragment and vertex program function pointers
pGlGenProgramsARB = (PFNGLGENPROGRAMSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenProgramsARB"));
pGlGenProgramsNV = (PFNGLGENPROGRAMSNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenProgramsNV"));
pGlBindProgramARB = (PFNGLBINDPROGRAMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindProgramARB"));
pGlBindProgramNV = (PFNGLBINDPROGRAMNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindProgramNV"));
pGlDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteProgramsARB"));
pGlDeleteProgramsNV = (PFNGLDELETEPROGRAMSNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteProgramsNV"));
pGlProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProgramStringARB"));
pGlLoadProgramNV = (PFNGLLOADPROGRAMNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glLoadProgramNV"));
pGlProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProgramLocalParameter4fvARB"));
pGlCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCreateShaderObjectARB"));
pGlCreateShader = (PFNGLCREATESHADERPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCreateShader"));
pGlShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glShaderSourceARB"));
pGlShaderSource = (PFNGLSHADERSOURCEPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glShaderSource"));
pGlCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCompileShaderARB"));
pGlCompileShader = (PFNGLCOMPILESHADERPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCompileShader"));
pGlCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCreateProgramObjectARB"));
pGlCreateProgram = (PFNGLCREATEPROGRAMPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCreateProgram"));
pGlAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glAttachObjectARB"));
pGlAttachShader = (PFNGLATTACHSHADERPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glAttachShader"));
pGlLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glLinkProgram"));
pGlLinkProgram = (PFNGLLINKPROGRAMPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glLinkProgramARB"));
pGlUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUseProgramObjectARB"));
pGlUseProgram = (PFNGLUSEPROGRAMPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUseProgram"));
pGlDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteObjectARB"));
pGlDeleteProgram = (PFNGLDELETEPROGRAMPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteProgram"));
pGlDeleteShader = (PFNGLDELETESHADERPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteShader"));
pGlGetAttachedObjectsARB = (PFNGLGETATTACHEDOBJECTSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetAttachedObjectsARB"));
pGlGetAttachedShaders = (PFNGLGETATTACHEDSHADERSPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetAttachedShaders"));
pGlGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetInfoLogARB"));
pGlGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetShaderInfoLog"));
pGlGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetProgramInfoLog"));
pGlGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetObjectParameterivARB"));
pGlGetShaderiv = (PFNGLGETSHADERIVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetShaderiv"));
pGlGetProgramiv = (PFNGLGETPROGRAMIVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetProgramiv"));
pGlGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetUniformLocationARB"));
pGlGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetUniformLocation"));
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform4fvARB"));
pGlUniform1ivARB = (PFNGLUNIFORM1IVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform1ivARB"));
pGlUniform1fvARB = (PFNGLUNIFORM1FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform1fvARB"));
pGlUniform2fvARB = (PFNGLUNIFORM2FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform2fvARB"));
pGlUniform3fvARB = (PFNGLUNIFORM3FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform3fvARB"));
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform4fvARB"));
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix2fvARB"));
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix3fvARB"));
pGlUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix4fvARB"));
pGlGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetActiveUniformARB"));
pGlGetActiveUniform = (PFNGLGETACTIVEUNIFORMPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetActiveUniform"));
// get point parameter extension
pGlPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glPointParameterfARB"));
pGlPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glPointParameterfvARB"));
// get stencil extension
pGlStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilFuncSeparate"));
pGlStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilOpSeparate"));
pGlStencilFuncSeparateATI = (PFNGLSTENCILFUNCSEPARATEATIPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilFuncSeparateATI"));
pGlStencilOpSeparateATI = (PFNGLSTENCILOPSEPARATEATIPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilOpSeparateATI"));
// compressed textures
pGlCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCompressedTexImage2D"));
#if defined(GLX_SGI_swap_control) && !defined(_IRR_COMPILE_WITH_SDL_DEVICE_)
// get vsync extension
glxSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glXSwapIntervalSGI"));
#endif
// FrameBufferObjects
pGlBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindFramebufferEXT"));
pGlDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteFramebuffersEXT"));
pGlGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenFramebuffersEXT"));
pGlCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCheckFramebufferStatusEXT"));
pGlFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glFramebufferTexture2DEXT"));
pGlBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindRenderbufferEXT"));
pGlDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteRenderbuffersEXT"));
pGlGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenRenderbuffersEXT"));
pGlRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glRenderbufferStorageEXT"));
pGlFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glFramebufferRenderbufferEXT"));
pGlDrawBuffersARB = (PFNGLDRAWBUFFERSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDrawBuffersARB"));
pGlDrawBuffersATI = (PFNGLDRAWBUFFERSATIPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDrawBuffersATI"));
pGlGenBuffersARB = (PFNGLGENBUFFERSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenBuffersARB"));
pGlBindBufferARB = (PFNGLBINDBUFFERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindBufferARB"));
pGlBufferDataARB = (PFNGLBUFFERDATAARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBufferDataARB"));
pGlDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteBuffersARB"));
pGlBufferSubDataARB = (PFNGLBUFFERSUBDATAARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBufferSubDataARB"));
pGlGetBufferSubDataARB = (PFNGLGETBUFFERSUBDATAARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetBufferSubDataARB"));
pGlMapBufferARB = (PFNGLMAPBUFFERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glMapBufferARB"));
pGlUnmapBufferARB = (PFNGLUNMAPBUFFERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUnmapBufferARB"));
pGlIsBufferARB = (PFNGLISBUFFERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glIsBufferARB"));
pGlGetBufferParameterivARB = (PFNGLGETBUFFERPARAMETERIVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetBufferParameterivARB"));
pGlGetBufferPointervARB = (PFNGLGETBUFFERPOINTERVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetBufferPointervARB"));
pGlProvokingVertexARB= (PFNGLPROVOKINGVERTEXPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProvokingVertex"));
pGlProvokingVertexEXT= (PFNGLPROVOKINGVERTEXEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProvokingVertexEXT"));
pGlColorMaskIndexedEXT= (PFNGLCOLORMASKINDEXEDEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glColorMaskIndexedEXT"));
pGlEnableIndexedEXT= (PFNGLENABLEINDEXEDEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glEnableIndexedEXT"));
pGlDisableIndexedEXT= (PFNGLDISABLEINDEXEDEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDisableIndexedEXT"));
pGlBlendFuncIndexedAMD= (PFNGLBLENDFUNCINDEXEDAMDPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBlendFuncIndexedAMD"));
pGlBlendFunciARB= (PFNGLBLENDFUNCIPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBlendFunciARB"));
pGlProgramParameteriARB = (PFNGLPROGRAMPARAMETERIARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProgramParameteriARB"));
pGlProgramParameteriEXT = (PFNGLPROGRAMPARAMETERIEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProgramParameteriEXT"));
// occlusion query
pGlGenQueriesARB = (PFNGLGENQUERIESARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenQueriesARB"));
pGlDeleteQueriesARB = (PFNGLDELETEQUERIESARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteQueriesARB"));
pGlIsQueryARB = (PFNGLISQUERYARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glIsQueryARB"));
pGlBeginQueryARB = (PFNGLBEGINQUERYARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBeginQueryARB"));
pGlEndQueryARB = (PFNGLENDQUERYARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glEndQueryARB"));
pGlGetQueryivARB = (PFNGLGETQUERYIVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetQueryivARB"));
pGlGetQueryObjectivARB = (PFNGLGETQUERYOBJECTIVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetQueryObjectivARB"));
pGlGetQueryObjectuivARB = (PFNGLGETQUERYOBJECTUIVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetQueryObjectuivARB"));
pGlGenOcclusionQueriesNV = (PFNGLGENOCCLUSIONQUERIESNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenOcclusionQueriesNV"));
pGlDeleteOcclusionQueriesNV = (PFNGLDELETEOCCLUSIONQUERIESNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteOcclusionQueriesNV"));
pGlIsOcclusionQueryNV = (PFNGLISOCCLUSIONQUERYNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glIsOcclusionQueryNV"));
pGlBeginOcclusionQueryNV = (PFNGLBEGINOCCLUSIONQUERYNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBeginOcclusionQueryNV"));
pGlEndOcclusionQueryNV = (PFNGLENDOCCLUSIONQUERYNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glEndOcclusionQueryNV"));
pGlGetOcclusionQueryivNV = (PFNGLGETOCCLUSIONQUERYIVNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetOcclusionQueryivNV"));
pGlGetOcclusionQueryuivNV = (PFNGLGETOCCLUSIONQUERYUIVNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetOcclusionQueryuivNV"));
#endif // _IRR_OPENGL_USE_EXTPOINTER_
#endif // _IRR_WINDOWS_API_
GLint num;
// set some properties
#if defined(GL_ARB_multitexture) || defined(GL_VERSION_1_3)
if (Version>102 || FeatureAvailable[IRR_ARB_multitexture])
{
glGetIntegerv(GL_MAX_TEXTURE_UNITS, &num);
MaxSupportedTextures=static_cast<u8>(num);
}
#endif
glGetIntegerv(GL_MAX_LIGHTS, &num);
MaxLights=static_cast<u8>(num);
#ifdef GL_EXT_texture_filter_anisotropic
if (FeatureAvailable[IRR_EXT_texture_filter_anisotropic])
{
glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &num);
MaxAnisotropy=static_cast<u8>(num);
}
#endif
#ifdef GL_VERSION_1_2
if (Version>101)
{
glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &num);
MaxIndices=num;
}
#endif
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &num);
MaxTextureSize=static_cast<u32>(num);
if (queryFeature(EVDF_GEOMETRY_SHADER))
{
#if defined(GL_ARB_geometry_shader4) || defined(GL_EXT_geometry_shader4) || defined(GL_NV_geometry_shader4)
glGetIntegerv(GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT, &num);
MaxGeometryVerticesOut=static_cast<u32>(num);
#elif defined(GL_NV_geometry_program4)
extGlGetProgramiv(GEOMETRY_PROGRAM_NV, GL_MAX_PROGRAM_OUTPUT_VERTICES_NV, &num);
MaxGeometryVerticesOut=static_cast<u32>(num);
#endif
}
#ifdef GL_EXT_texture_lod_bias
if (FeatureAvailable[IRR_EXT_texture_lod_bias])
glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &MaxTextureLODBias);
#endif
glGetIntegerv(GL_MAX_CLIP_PLANES, &num);
MaxUserClipPlanes=static_cast<u8>(num);
glGetIntegerv(GL_AUX_BUFFERS, &num);
MaxAuxBuffers=static_cast<u8>(num);
#ifdef GL_ARB_draw_buffers
if (FeatureAvailable[IRR_ARB_draw_buffers])
{
glGetIntegerv(GL_MAX_DRAW_BUFFERS_ARB, &num);
MaxMultipleRenderTargets = static_cast<u8>(num);
}
#elif defined(GL_ATI_draw_buffers)
if (FeatureAvailable[IRR_ATI_draw_buffers])
{
glGetIntegerv(GL_MAX_DRAW_BUFFERS_ATI, &num);
MaxMultipleRenderTargets = static_cast<u8>(num);
}
#endif
glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, DimAliasedLine);
glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, DimAliasedPoint);
glGetFloatv(GL_SMOOTH_LINE_WIDTH_RANGE, DimSmoothedLine);
glGetFloatv(GL_SMOOTH_POINT_SIZE_RANGE, DimSmoothedPoint);
#if defined(GL_ARB_shading_language_100) || defined (GL_VERSION_2_0)
if (FeatureAvailable[IRR_ARB_shading_language_100] || Version>=200)
{
glGetError(); // clean error buffer
#ifdef GL_SHADING_LANGUAGE_VERSION
const GLubyte* shaderVersion = glGetString(GL_SHADING_LANGUAGE_VERSION);
#else
const GLubyte* shaderVersion = glGetString(GL_SHADING_LANGUAGE_VERSION_ARB);
#endif
if (glGetError() == GL_INVALID_ENUM)
ShaderLanguageVersion = 100;
else
{
const f32 sl_ver = core::fast_atof(reinterpret_cast<const c8*>(shaderVersion));
ShaderLanguageVersion = static_cast<u16>(core::floor32(sl_ver)*100+core::round32(core::fract(sl_ver)*10.0f));
}
}
#endif
#ifdef _IRR_OPENGL_USE_EXTPOINTER_
if (!pGlActiveTextureARB || !pGlClientActiveTextureARB)
{
MultiTextureExtension = false;
os::Printer::log("Failed to load OpenGL's multitexture extension, proceeding without.", ELL_WARNING);
}
else
#endif
MaxTextureUnits = core::min_(MaxSupportedTextures, static_cast<u8>(MATERIAL_MAX_TEXTURES));
if (MaxTextureUnits < 2)
{
MultiTextureExtension = false;
os::Printer::log("Warning: OpenGL device only has one texture unit. Disabling multitexturing.", ELL_WARNING);
}
#ifdef GL_ARB_occlusion_query
if (FeatureAvailable[IRR_ARB_occlusion_query])
{
extGlGetQueryiv(GL_SAMPLES_PASSED_ARB,GL_QUERY_COUNTER_BITS_ARB,
&num);
OcclusionQuerySupport=(num>0);
}
else
#endif
#ifdef GL_NV_occlusion_query
if (FeatureAvailable[IRR_NV_occlusion_query])
{
glGetIntegerv(GL_PIXEL_COUNTER_BITS_NV, &num);
OcclusionQuerySupport=(num>0);
}
else
#endif
OcclusionQuerySupport=false;
#ifdef _DEBUG
if (FeatureAvailable[IRR_NVX_gpu_memory_info])
{
// undocumented flags, so use the RAW values
GLint val;
glGetIntegerv(0x9047, &val);
os::Printer::log("Dedicated video memory (kB)", core::stringc(val));
glGetIntegerv(0x9048, &val);
os::Printer::log("Total video memory (kB)", core::stringc(val));
glGetIntegerv(0x9049, &val);
os::Printer::log("Available video memory (kB)", core::stringc(val));
}
#ifdef GL_ATI_meminfo
if (FeatureAvailable[IRR_ATI_meminfo])
{
GLint val[4];
glGetIntegerv(GL_TEXTURE_FREE_MEMORY_ATI, val);
os::Printer::log("Free texture memory (kB)", core::stringc(val[0]));
glGetIntegerv(GL_VBO_FREE_MEMORY_ATI, val);
os::Printer::log("Free VBO memory (kB)", core::stringc(val[0]));
glGetIntegerv(GL_RENDERBUFFER_FREE_MEMORY_ATI, val);
os::Printer::log("Free render buffer memory (kB)", core::stringc(val[0]));
}
#endif
#endif
}
void initGL()
{
if (is_gl_init)
return;
is_gl_init = true;
#ifdef _IRR_WINDOWS_API_
glGenTransformFeedbacks = (PFNGLGENTRANSFORMFEEDBACKSPROC)IRR_OGL_LOAD_EXTENSION("glGenTransformFeedbacks");
glBindTransformFeedback = (PFNGLBINDTRANSFORMFEEDBACKPROC)IRR_OGL_LOAD_EXTENSION("glBindTransformFeedback");
glDrawTransformFeedback = (PFNGLDRAWTRANSFORMFEEDBACKPROC)IRR_OGL_LOAD_EXTENSION("glDrawTransformFeedback");
glBeginTransformFeedback = (PFNGLBEGINTRANSFORMFEEDBACKPROC)IRR_OGL_LOAD_EXTENSION("glBeginTransformFeedback");
glEndTransformFeedback = (PFNGLENDTRANSFORMFEEDBACKPROC)IRR_OGL_LOAD_EXTENSION("glEndTransformFeedback");
glBindBufferBase = (PFNGLBINDBUFFERBASEPROC)IRR_OGL_LOAD_EXTENSION("glBindBufferBase");
glGenBuffers = (PFNGLGENBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glGenBuffers");
glBindBuffer = (PFNGLBINDBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glBindBuffer");
glBufferData = (PFNGLBUFFERDATAPROC)IRR_OGL_LOAD_EXTENSION("glBufferData");
glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)IRR_OGL_LOAD_EXTENSION("glVertexAttribPointer");
glCreateShader = (PFNGLCREATESHADERPROC)IRR_OGL_LOAD_EXTENSION("glCreateShader");
glCompileShader = (PFNGLCOMPILESHADERPROC)IRR_OGL_LOAD_EXTENSION("glCompileShader");
glShaderSource = (PFNGLSHADERSOURCEPROC)IRR_OGL_LOAD_EXTENSION("glShaderSource");
glCreateProgram = (PFNGLCREATEPROGRAMPROC)IRR_OGL_LOAD_EXTENSION("glCreateProgram");
glAttachShader = (PFNGLATTACHSHADERPROC)IRR_OGL_LOAD_EXTENSION("glAttachShader");
glLinkProgram = (PFNGLLINKPROGRAMPROC)IRR_OGL_LOAD_EXTENSION("glLinkProgram");
glUseProgram = (PFNGLUSEPROGRAMPROC)IRR_OGL_LOAD_EXTENSION("glUseProgram");
glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)IRR_OGL_LOAD_EXTENSION("glEnableVertexAttribArray");
glGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC)IRR_OGL_LOAD_EXTENSION("glGetUniformLocation");
glUniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix4fv");
glUniform1f = (PFNGLUNIFORM1FPROC)IRR_OGL_LOAD_EXTENSION("glUniform1f");
glUniform3f = (PFNGLUNIFORM3FPROC)IRR_OGL_LOAD_EXTENSION("glUniform3f");
glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)IRR_OGL_LOAD_EXTENSION("glDisableVertexAttribArray");
glDeleteShader = (PFNGLDELETESHADERPROC)IRR_OGL_LOAD_EXTENSION("glDeleteShader");
glGetShaderiv = (PFNGLGETSHADERIVPROC)IRR_OGL_LOAD_EXTENSION("glGetShaderiv");
glGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC)IRR_OGL_LOAD_EXTENSION("glGetShaderInfoLog");
glActiveTexture = (PFNGLACTIVETEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glActiveTexture");
glUniform2f = (PFNGLUNIFORM2FPROC)IRR_OGL_LOAD_EXTENSION("glUniform2f");
glUniform4i = (PFNGLUNIFORM4IPROC)IRR_OGL_LOAD_EXTENSION("glUniform4i");
glUniform3i = (PFNGLUNIFORM3IPROC)IRR_OGL_LOAD_EXTENSION("glUniform3i");
glUniform1i = (PFNGLUNIFORM1IPROC)IRR_OGL_LOAD_EXTENSION("glUniform1i");
glGetProgramiv = (PFNGLGETPROGRAMIVPROC)IRR_OGL_LOAD_EXTENSION("glGetProgramiv");
glGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC)IRR_OGL_LOAD_EXTENSION("glGetProgramInfoLog");
glTransformFeedbackVaryings = (PFNGLTRANSFORMFEEDBACKVARYINGSPROC)IRR_OGL_LOAD_EXTENSION("glTransformFeedbackVaryings");
glGetAttribLocation = (PFNGLGETATTRIBLOCATIONPROC)IRR_OGL_LOAD_EXTENSION("glGetAttribLocation");
glBlendEquation = (PFNGLBLENDEQUATIONPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquation");
glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISORPROC)IRR_OGL_LOAD_EXTENSION("glVertexAttribDivisor");
glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDPROC)IRR_OGL_LOAD_EXTENSION("glDrawArraysInstanced");
glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glDeleteBuffers");
glGenVertexArrays = (PFNGLGENVERTEXARRAYSPROC)IRR_OGL_LOAD_EXTENSION("glGenVertexArrays");
glBindVertexArray = (PFNGLBINDVERTEXARRAYPROC)IRR_OGL_LOAD_EXTENSION("glBindVertexArray");
glDeleteVertexArrays = (PFNGLDELETEVERTEXARRAYSPROC)IRR_OGL_LOAD_EXTENSION("glDeleteVertexArrays");
glTexBuffer = (PFNGLTEXBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glTexBuffer");
glUniform1fv = (PFNGLUNIFORM1FVPROC)IRR_OGL_LOAD_EXTENSION("glUniform1fv");
glUniform4fv = (PFNGLUNIFORM4FVPROC)IRR_OGL_LOAD_EXTENSION("glUniform4fv");
glBufferSubData = (PFNGLBUFFERSUBDATAPROC)IRR_OGL_LOAD_EXTENSION("glBufferSubData");
glVertexAttribIPointer = (PFNGLVERTEXATTRIBIPOINTERPROC)IRR_OGL_LOAD_EXTENSION("glVertexAttribIPointer");
glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glGenFramebuffers");
glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glBindFramebuffer");
glFramebufferTexture = (PFNGLFRAMEBUFFERTEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glFramebufferTexture");
glTexImage3D = (PFNGLTEXIMAGE3DPROC)IRR_OGL_LOAD_EXTENSION("glTexImage3D");
glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)IRR_OGL_LOAD_EXTENSION("glCheckFramebufferStatus");
#ifdef DEBUG
glDebugMessageCallbackARB = (PFNGLDEBUGMESSAGECALLBACKARBPROC)IRR_OGL_LOAD_EXTENSION("glDebugMessageCallbackARB");
#endif
#endif
#ifdef ARB_DEBUG_OUTPUT
glDebugMessageCallbackARB((GLDEBUGPROCARB)debugCallback, NULL);
#endif
}
void COpenGLExtensionHandler::initExtensions(bool stencilBuffer)
{
const f32 ogl_ver = core::fast_atof(reinterpret_cast<const c8*>(glGetString(GL_VERSION)));
Version = core::floor32(ogl_ver)*100+core::ceil32(core::fract(ogl_ver)*10.0f);
if ( Version >= 102)
os::Printer::log("OpenGL driver version is 1.2 or better.", ELL_INFORMATION);
else
os::Printer::log("OpenGL driver version is not 1.2 or better.", ELL_WARNING);
{
const char* t = reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS));
const size_t len = strlen(t);
c8 *str = new c8[len+1];
c8* p = str;
for (size_t i=0; i<len; ++i)
{
str[i] = static_cast<char>(t[i]);
if (str[i] == ' ')
{
str[i] = 0;
for (u32 j=0; j<IRR_OpenGL_Feature_Count; ++j)
{
if (!strcmp(OpenGLFeatureStrings[j], p))
{
FeatureAvailable[j] = true;
break;
}
}
p = p + strlen(p) + 1;
}
}
delete [] str;
}
MultiTextureExtension = FeatureAvailable[IRR_ARB_multitexture];
MultiSamplingExtension = FeatureAvailable[IRR_ARB_multisample];
AnisotropyExtension = FeatureAvailable[IRR_EXT_texture_filter_anisotropic];
TextureCompressionExtension = FeatureAvailable[IRR_ARB_texture_compression];
StencilBuffer=stencilBuffer;
#ifdef _IRR_WINDOWS_API_
// get multitexturing function pointers
pGlActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC) wglGetProcAddress("glActiveTextureARB");
pGlClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC) wglGetProcAddress("glClientActiveTextureARB");
// get fragment and vertex program function pointers
pGlGenProgramsARB = (PFNGLGENPROGRAMSARBPROC) wglGetProcAddress("glGenProgramsARB");
pGlBindProgramARB = (PFNGLBINDPROGRAMARBPROC) wglGetProcAddress("glBindProgramARB");
pGlProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC) wglGetProcAddress("glProgramStringARB");
pGlDeleteProgramsARB = (PFNGLDELETEPROGRAMSNVPROC) wglGetProcAddress("glDeleteProgramsARB");
pGlProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) wglGetProcAddress("glProgramLocalParameter4fvARB");
pGlCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC) wglGetProcAddress("glCreateShaderObjectARB");
pGlShaderSourceARB = (PFNGLSHADERSOURCEARBPROC) wglGetProcAddress("glShaderSourceARB");
pGlCompileShaderARB = (PFNGLCOMPILESHADERARBPROC) wglGetProcAddress("glCompileShaderARB");
pGlCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC) wglGetProcAddress("glCreateProgramObjectARB");
pGlAttachObjectARB = (PFNGLATTACHOBJECTARBPROC) wglGetProcAddress("glAttachObjectARB");
pGlLinkProgramARB = (PFNGLLINKPROGRAMARBPROC) wglGetProcAddress("glLinkProgramARB");
pGlUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC) wglGetProcAddress("glUseProgramObjectARB");
pGlDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC) wglGetProcAddress("glDeleteObjectARB");
pGlGetInfoLogARB = (PFNGLGETINFOLOGARBPROC) wglGetProcAddress("glGetInfoLogARB");
pGlGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC) wglGetProcAddress("glGetObjectParameterivARB");
pGlGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC) wglGetProcAddress("glGetUniformLocationARB");
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC) wglGetProcAddress("glUniform4fvARB");
pGlUniform1ivARB = (PFNGLUNIFORM1IVARBPROC) wglGetProcAddress("glUniform1ivARB");
pGlUniform1fvARB = (PFNGLUNIFORM1FVARBPROC) wglGetProcAddress("glUniform1fvARB");
pGlUniform2fvARB = (PFNGLUNIFORM2FVARBPROC) wglGetProcAddress("glUniform2fvARB");
pGlUniform3fvARB = (PFNGLUNIFORM3FVARBPROC) wglGetProcAddress("glUniform3fvARB");
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC) wglGetProcAddress("glUniformMatrix2fvARB");
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC) wglGetProcAddress("glUniformMatrix3fvARB");
pGlUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC) wglGetProcAddress("glUniformMatrix4fvARB");
pGlGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC) wglGetProcAddress("glGetActiveUniformARB");
// get point parameter extension
pGlPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC) wglGetProcAddress("glPointParameterfARB");
pGlPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC) wglGetProcAddress("glPointParameterfvARB");
// get stencil extension
pGlStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC) wglGetProcAddress("glStencilFuncSeparate");
pGlStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC) wglGetProcAddress("glStencilOpSeparate");
pGlStencilFuncSeparateATI = (PFNGLSTENCILFUNCSEPARATEATIPROC) wglGetProcAddress("glStencilFuncSeparateATI");
pGlStencilOpSeparateATI = (PFNGLSTENCILOPSEPARATEATIPROC) wglGetProcAddress("glStencilOpSeparateATI");
// compressed textures
pGlCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC) wglGetProcAddress("glCompressedTexImage2D");
// FrameBufferObjects
pGlBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC) wglGetProcAddress("glBindFramebufferEXT");
pGlDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC) wglGetProcAddress("glDeleteFramebuffersEXT");
pGlGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC) wglGetProcAddress("glGenFramebuffersEXT");
pGlCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC) wglGetProcAddress("glCheckFramebufferStatusEXT");
pGlFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC) wglGetProcAddress("glFramebufferTexture2DEXT");
pGlBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC) wglGetProcAddress("glBindRenderbufferEXT");
pGlDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC) wglGetProcAddress("glDeleteRenderbuffersEXT");
pGlGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC) wglGetProcAddress("glGenRenderbuffersEXT");
pGlRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC) wglGetProcAddress("glRenderbufferStorageEXT");
pGlFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC) wglGetProcAddress("glFramebufferRenderbufferEXT");
// get vertex buffer extension
pGlGenBuffersARB = (PFNGLGENBUFFERSARBPROC) wglGetProcAddress("glGenBuffersARB");
pGlBindBufferARB = (PFNGLBINDBUFFERARBPROC) wglGetProcAddress("glBindBufferARB");
pGlBufferDataARB = (PFNGLBUFFERDATAARBPROC) wglGetProcAddress("glBufferDataARB");
pGlDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC) wglGetProcAddress("glDeleteBuffersARB");
pGlBufferSubDataARB= (PFNGLBUFFERSUBDATAARBPROC) wglGetProcAddress("glBufferSubDataARB");
pGlGetBufferSubDataARB= (PFNGLGETBUFFERSUBDATAARBPROC)wglGetProcAddress("glGetBufferSubDataARB");
pGlMapBufferARB= (PFNGLMAPBUFFERARBPROC) wglGetProcAddress("glMapBufferARB");
pGlUnmapBufferARB= (PFNGLUNMAPBUFFERARBPROC) wglGetProcAddress("glUnmapBufferARB");
pGlIsBufferARB= (PFNGLISBUFFERARBPROC) wglGetProcAddress("glIsBufferARB");
pGlGetBufferParameterivARB= (PFNGLGETBUFFERPARAMETERIVARBPROC) wglGetProcAddress("glGetBufferParameterivARB");
pGlGetBufferPointervARB= (PFNGLGETBUFFERPOINTERVARBPROC) wglGetProcAddress("glGetBufferPointervARB");
// vsync extension
wglSwapIntervalEXT = (PFNWGLSWAPINTERVALFARPROC) wglGetProcAddress("wglSwapIntervalEXT");
#elif defined(_IRR_USE_LINUX_DEVICE_) || defined (_IRR_USE_SDL_DEVICE_)
#ifdef _IRR_OPENGL_USE_EXTPOINTER_
#ifdef _IRR_USE_SDL_DEVICE_
#define IRR_OGL_LOAD_EXTENSION(x) SDL_GL_GetProcAddress(reinterpret_cast<const char*>(x))
#else
// Accessing the correct function is quite complex
// All libraries should support the ARB version, however
// since GLX 1.4 the non-ARB version is the official one
// So we have to check the runtime environment and
// choose the proper symbol
// In case you still have problems please enable the
// next line by uncommenting it
// #define _IRR_GETPROCADDRESS_WORKAROUND_
#ifndef _IRR_GETPROCADDRESS_WORKAROUND_
__GLXextFuncPtr (*IRR_OGL_LOAD_EXTENSION)(const GLubyte*)=0;
#ifdef GLX_VERSION_1_4
int major,minor;
glXQueryVersion(glXGetCurrentDisplay(), &major, &minor);
if ((major>1) || (minor>3))
IRR_OGL_LOAD_EXTENSION=glXGetProcAddress;
else
#endif
IRR_OGL_LOAD_EXTENSION=glXGetProcAddressARB;
#else
#define IRR_OGL_LOAD_EXTENSION glXGetProcAddressARB
#endif
#endif
pGlActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glActiveTextureARB"));
pGlClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glClientActiveTextureARB"));
// get fragment and vertex program function pointers
pGlGenProgramsARB = (PFNGLGENPROGRAMSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenProgramsARB"));
pGlBindProgramARB = (PFNGLBINDPROGRAMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindProgramARB"));
pGlProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProgramStringARB"));
pGlDeleteProgramsARB = (PFNGLDELETEPROGRAMSNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteProgramsARB"));
pGlProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProgramLocalParameter4fvARB"));
pGlCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCreateShaderObjectARB"));
pGlShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glShaderSourceARB"));
pGlCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCompileShaderARB"));
pGlCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCreateProgramObjectARB"));
pGlAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glAttachObjectARB"));
pGlLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glLinkProgramARB"));
pGlUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUseProgramObjectARB"));
pGlDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteObjectARB"));
pGlGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetInfoLogARB"));
pGlGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetObjectParameterivARB"));
pGlGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetUniformLocationARB"));
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform4fvARB"));
pGlUniform1ivARB = (PFNGLUNIFORM1IVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform1ivARB"));
pGlUniform1fvARB = (PFNGLUNIFORM1FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform1fvARB"));
pGlUniform2fvARB = (PFNGLUNIFORM2FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform2fvARB"));
pGlUniform3fvARB = (PFNGLUNIFORM3FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform3fvARB"));
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform4fvARB"));
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix2fvARB"));
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix3fvARB"));
pGlUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix4fvARB"));
pGlGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetActiveUniformARB"));
// get point parameter extension
pGlPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glPointParameterfARB"));
pGlPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glPointParameterfvARB"));
// get stencil extension
pGlStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilFuncSeparate"));
pGlStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilOpSeparate"));
pGlStencilFuncSeparateATI = (PFNGLSTENCILFUNCSEPARATEATIPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilFuncSeparateATI"));
pGlStencilOpSeparateATI = (PFNGLSTENCILOPSEPARATEATIPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilOpSeparateATI"));
// compressed textures
pGlCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCompressedTexImage2D"));
#if defined(GLX_SGI_swap_control) && !defined(_IRR_USE_SDL_DEVICE_)
// get vsync extension
glxSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glXSwapIntervalSGI"));
#endif
// FrameBufferObjects
pGlBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindFramebufferEXT"));
pGlDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteFramebuffersEXT"));
pGlGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenFramebuffersEXT"));
pGlCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCheckFramebufferStatusEXT"));
pGlFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glFramebufferTexture2DEXT"));
pGlBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindRenderbufferEXT"));
pGlDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteRenderbuffersEXT"));
pGlGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenRenderbuffersEXT"));
pGlRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glRenderbufferStorageEXT"));
pGlFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glFramebufferRenderbufferEXT"));
pGlGenBuffersARB = (PFNGLGENBUFFERSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenBuffersARB"));
pGlBindBufferARB = (PFNGLBINDBUFFERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindBufferARB"));
pGlBufferDataARB = (PFNGLBUFFERDATAARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBufferDataARB"));
pGlDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteBuffersARB"));
pGlBufferSubDataARB = (PFNGLBUFFERSUBDATAARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBufferSubDataARB"));
pGlGetBufferSubDataARB = (PFNGLGETBUFFERSUBDATAARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetBufferSubDataARB"));
pGlMapBufferARB = (PFNGLMAPBUFFERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glMapBufferARB"));
pGlUnmapBufferARB = (PFNGLUNMAPBUFFERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUnmapBufferARB"));
pGlIsBufferARB = (PFNGLISBUFFERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glIsBufferARB"));
pGlGetBufferParameterivARB = (PFNGLGETBUFFERPARAMETERIVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetBufferParameterivARB"));
pGlGetBufferPointervARB = (PFNGLGETBUFFERPOINTERVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetBufferPointervARB"));
#endif // _IRR_OPENGL_USE_EXTPOINTER_
#endif // _IRR_WINDOWS_API_
// set some properties
#if defined(GL_ARB_multitexture) || defined(GL_VERSION_1_3)
if (Version>102 || FeatureAvailable[IRR_ARB_multitexture])
{
GLint num;
glGetIntegerv(GL_MAX_TEXTURE_UNITS, &num);
MaxTextureUnits=num;
}
#endif
glGetIntegerv(GL_MAX_LIGHTS, &MaxLights);
#ifdef GL_EXT_texture_filter_anisotropic
if (FeatureAvailable[IRR_EXT_texture_filter_anisotropic])
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &MaxAnisotropy);
#endif
#ifdef GL_VERSION_1_2
if (Version>101)
glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &MaxIndices);
#endif
glGetIntegerv(GL_MAX_CLIP_PLANES, reinterpret_cast<GLint*>(&MaxUserClipPlanes));
#if defined(GL_ARB_shading_language_100) || defined (GL_VERSION_2_0)
if (FeatureAvailable[IRR_ARB_shading_language_100] || Version>=200)
{
glGetError(); // clean error buffer
#ifdef GL_SHADING_LANGUAGE_VERSION
const GLubyte* shaderVersion = glGetString(GL_SHADING_LANGUAGE_VERSION);
#else
const GLubyte* shaderVersion = glGetString(GL_SHADING_LANGUAGE_VERSION_ARB);
#endif
if (glGetError() == GL_INVALID_ENUM)
ShaderLanguageVersion = 100;
else
{
const f32 sl_ver = core::fast_atof(reinterpret_cast<const c8*>(shaderVersion));
ShaderLanguageVersion = core::floor32(sl_ver)*100+core::ceil32(core::fract(sl_ver)*10.0f);
}
}
#endif
#ifdef _IRR_OPENGL_USE_EXTPOINTER_
if (!pGlActiveTextureARB || !pGlClientActiveTextureARB)
{
MultiTextureExtension = false;
os::Printer::log("Failed to load OpenGL's multitexture extension, proceeding without.", ELL_WARNING);
}
else
#endif
if (MaxTextureUnits < 2)
{
MultiTextureExtension = false;
os::Printer::log("Warning: OpenGL device only has one texture unit. Disabling multitexturing.", ELL_WARNING);
}
MaxTextureUnits = core::min_(MaxTextureUnits,MATERIAL_MAX_TEXTURES);
}
void COpenGLExtensionHandler::initExtensions(bool stencilBuffer)
{
const f32 ver = (f32)atof((c8*)glGetString(GL_VERSION));
Version = core::floor32(ver)*100+(s32)(ver-floor(ver));
if ( Version >= 102)
os::Printer::log("OpenGL driver version is 1.2 or better.", ELL_INFORMATION);
else
os::Printer::log("OpenGL driver version is not 1.2 or better.", ELL_WARNING);
const GLubyte* t = glGetString(GL_EXTENSIONS);
// os::Printer::log((const c8*)t, ELL_INFORMATION);
#ifdef GLU_VERSION_1_3
const GLubyte* gluVersion = gluGetString(GLU_VERSION);
if (gluVersion[0]>1 || gluVersion[3]>2)
{
for (u32 i=0; i<IRR_OpenGL_Feature_Count; ++i)
FeatureAvailable[i] = gluCheckExtension((const GLubyte*)OpenGLFeatureStrings[i], t);
}
else
#endif
{
s32 len = (s32)strlen((const char*)t);
c8 *str = new c8[len+1];
c8* p = str;
for (s32 i=0; i<len; ++i)
{
str[i] = (char)t[i];
if (str[i] == ' ')
{
str[i] = 0;
for (u32 i=0; i<IRR_OpenGL_Feature_Count; ++i)
if (strstr(p, OpenGLFeatureStrings[i]))
FeatureAvailable[i] = true;
p = p + strlen(p) + 1;
}
}
delete [] str;
}
MultiTextureExtension = FeatureAvailable[IRR_ARB_multitexture];
MultiSamplingExtension = FeatureAvailable[IRR_ARB_multisample];
AnisotropyExtension = FeatureAvailable[IRR_EXT_texture_filter_anisotropic];
SeparateStencilExtension = FeatureAvailable[IRR_ATI_separate_stencil];
TextureCompressionExtension = FeatureAvailable[IRR_ARB_texture_compression];
PackedDepthStencilExtension = FeatureAvailable[IRR_EXT_packed_depth_stencil];
SeparateSpecularColorExtension = FeatureAvailable[IRR_EXT_separate_specular_color];
StencilBuffer=stencilBuffer;
#ifdef _IRR_WINDOWS_API_
// get multitexturing function pointers
pGlActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC) wglGetProcAddress("glActiveTextureARB");
pGlClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC) wglGetProcAddress("glClientActiveTextureARB");
// get fragment and vertex program function pointers
pGlGenProgramsARB = (PFNGLGENPROGRAMSARBPROC) wglGetProcAddress("glGenProgramsARB");
pGlBindProgramARB = (PFNGLBINDPROGRAMARBPROC) wglGetProcAddress("glBindProgramARB");
pGlProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC) wglGetProcAddress("glProgramStringARB");
pGlDeleteProgramsARB = (PFNGLDELETEPROGRAMSNVPROC) wglGetProcAddress("glDeleteProgramsARB");
pGlProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) wglGetProcAddress("glProgramLocalParameter4fvARB");
pGlCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC) wglGetProcAddress("glCreateShaderObjectARB");
pGlShaderSourceARB = (PFNGLSHADERSOURCEARBPROC) wglGetProcAddress("glShaderSourceARB");
pGlCompileShaderARB = (PFNGLCOMPILESHADERARBPROC) wglGetProcAddress("glCompileShaderARB");
pGlCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC) wglGetProcAddress("glCreateProgramObjectARB");
pGlAttachObjectARB = (PFNGLATTACHOBJECTARBPROC) wglGetProcAddress("glAttachObjectARB");
pGlLinkProgramARB = (PFNGLLINKPROGRAMARBPROC) wglGetProcAddress("glLinkProgramARB");
pGlUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC) wglGetProcAddress("glUseProgramObjectARB");
pGlDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC) wglGetProcAddress("glDeleteObjectARB");
pGlGetInfoLogARB = (PFNGLGETINFOLOGARBPROC) wglGetProcAddress("glGetInfoLogARB");
pGlGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC) wglGetProcAddress("glGetObjectParameterivARB");
pGlGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC) wglGetProcAddress("glGetUniformLocationARB");
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC) wglGetProcAddress("glUniform4fvARB");
pGlUniform1ivARB = (PFNGLUNIFORM1IVARBPROC) wglGetProcAddress("glUniform1ivARB");
pGlUniform1fvARB = (PFNGLUNIFORM1FVARBPROC) wglGetProcAddress("glUniform1fvARB");
pGlUniform2fvARB = (PFNGLUNIFORM2FVARBPROC) wglGetProcAddress("glUniform2fvARB");
pGlUniform3fvARB = (PFNGLUNIFORM3FVARBPROC) wglGetProcAddress("glUniform3fvARB");
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC) wglGetProcAddress("glUniformMatrix2fvARB");
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC) wglGetProcAddress("glUniformMatrix3fvARB");
pGlUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC) wglGetProcAddress("glUniformMatrix4fvARB");
pGlGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC) wglGetProcAddress("glGetActiveUniformARB");
// get point parameter extension
pGlPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC) wglGetProcAddress("glPointParameterfARB");
pGlPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC) wglGetProcAddress("glPointParameterfvARB");
// get stencil extension
pGlStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC) wglGetProcAddress("glStencilFuncSeparate");
pGlStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC) wglGetProcAddress("glStencilOpSeparate");
pGlStencilFuncSeparateATI = (PFNGLSTENCILFUNCSEPARATEATIPROC) wglGetProcAddress("glStencilFuncSeparateATI");
pGlStencilOpSeparateATI = (PFNGLSTENCILOPSEPARATEATIPROC) wglGetProcAddress("glStencilOpSeparateATI");
// compressed textures
#ifdef PFNGLCOMPRESSEDTEXIMAGE2DPROC
pGlCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC) wglGetProcAddress("glCompressedTexImage2D");
#endif
// FrameBufferObjects
pGlBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC) wglGetProcAddress("glBindFramebufferEXT");
pGlDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC) wglGetProcAddress("glDeleteFramebuffersEXT");
pGlGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC) wglGetProcAddress("glGenFramebuffersEXT");
pGlCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC) wglGetProcAddress("glCheckFramebufferStatusEXT");
pGlFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC) wglGetProcAddress("glFramebufferTexture2DEXT");
pGlBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC) wglGetProcAddress("glBindRenderbufferEXT");
pGlDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC) wglGetProcAddress("glDeleteRenderbuffersEXT");
pGlGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC) wglGetProcAddress("glGenRenderbuffersEXT");
pGlRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC) wglGetProcAddress("glRenderbufferStorageEXT");
pGlFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC) wglGetProcAddress("glFramebufferRenderbufferEXT");
// vsync extension
wglSwapIntervalEXT = (PFNWGLSWAPINTERVALFARPROC)wglGetProcAddress( "wglSwapIntervalEXT" );
#elif defined(_IRR_USE_LINUX_DEVICE_) || defined (_IRR_USE_SDL_DEVICE_)
#ifdef _IRR_OPENGL_USE_EXTPOINTER_
#ifdef _IRR_USE_SDL_DEVICE_
#define IRR_OGL_LOAD_EXTENSION(x) SDL_GL_GetProcAddress(reinterpret_cast<const char*>(x))
#else
// Accessing the correct function is quite complex
// All libraries should support the ARB version, however
// since GLX 1.4 the non-ARB version is the official one
// So we have to check the runtime environment and
// choose the proper symbol
// In case you still have problems please enable the
// next line by uncommenting it
// #define _IRR_GETPROCADDRESS_WORKAROUND_
#ifndef _IRR_GETPROCADDRESS_WORKAROUND_
__GLXextFuncPtr (*IRR_OGL_LOAD_EXTENSION)(const GLubyte*)=0;
#ifdef GLX_VERSION_1_4
int major,minor;
glXQueryVersion(glXGetCurrentDisplay(), &major, &minor);
if ((major>1) || (minor>3))
IRR_OGL_LOAD_EXTENSION=glXGetProcAddress;
else
#endif
IRR_OGL_LOAD_EXTENSION=glXGetProcAddressARB;
#else
#define IRR_OGL_LOAD_EXTENSION glXGetProcAddressARB
#endif
#endif
pGlActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glActiveTextureARB"));
pGlClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glClientActiveTextureARB"));
// get fragment and vertex program function pointers
pGlGenProgramsARB = (PFNGLGENPROGRAMSARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenProgramsARB"));
pGlBindProgramARB = (PFNGLBINDPROGRAMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindProgramARB"));
pGlProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProgramStringARB"));
pGlDeleteProgramsARB = (PFNGLDELETEPROGRAMSNVPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteProgramsARB"));
pGlProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glProgramLocalParameter4fvARB"));
pGlCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCreateShaderObjectARB"));
pGlShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glShaderSourceARB"));
pGlCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCompileShaderARB"));
pGlCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCreateProgramObjectARB"));
pGlAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glAttachObjectARB"));
pGlLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glLinkProgramARB"));
pGlUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUseProgramObjectARB"));
pGlDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteObjectARB"));
pGlGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetInfoLogARB"));
pGlGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetObjectParameterivARB"));
pGlGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetUniformLocationARB"));
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform4fvARB"));
pGlUniform1ivARB = (PFNGLUNIFORM1IVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform1ivARB"));
pGlUniform1fvARB = (PFNGLUNIFORM1FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform1fvARB"));
pGlUniform2fvARB = (PFNGLUNIFORM2FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform2fvARB"));
pGlUniform3fvARB = (PFNGLUNIFORM3FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform3fvARB"));
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniform4fvARB"));
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix2fvARB"));
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix3fvARB"));
pGlUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glUniformMatrix4fvARB"));
pGlGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGetActiveUniformARB"));
// get point parameter extension
pGlPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glPointParameterfARB"));
pGlPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glPointParameterfvARB"));
// get stencil extension
pGlStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilFuncSeparate"));
pGlStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilOpSeparate"));
pGlStencilFuncSeparateATI = (PFNGLSTENCILFUNCSEPARATEATIPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilFuncSeparateATI"));
pGlStencilOpSeparateATI = (PFNGLSTENCILOPSEPARATEATIPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glStencilOpSeparateATI"));
// compressed textures
#ifdef PFNGLCOMPRESSEDTEXIMAGE2DPROC
pGlCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCompressedTexImage2D"));
#endif
#if defined(GLX_SGI_swap_control) && !defined(_IRR_USE_SDL_DEVICE_)
// get vsync extension
glxSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glXSwapIntervalSGI"));
#endif
// FrameBufferObjects
pGlBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindFramebufferEXT"));
pGlDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteFramebuffersEXT"));
pGlGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenFramebuffersEXT"));
pGlCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glCheckFramebufferStatusEXT"));
pGlFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glFramebufferTexture2DEXT"));
pGlBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glBindRenderbufferEXT"));
pGlDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glDeleteRenderbuffersEXT"));
pGlGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glGenRenderbuffersEXT"));
pGlRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glRenderbufferStorageEXT"));
pGlFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC)
IRR_OGL_LOAD_EXTENSION(reinterpret_cast<const GLubyte*>("glFramebufferRenderbufferEXT"));
#endif // _IRR_OPENGL_USE_EXTPOINTER_
#endif // _IRR_WINDOWS_API_
// set some properties
glGetIntegerv(GL_MAX_TEXTURE_UNITS, &MaxTextureUnits);
glGetIntegerv(GL_MAX_LIGHTS, &MaxLights);
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &MaxAnisotropy);
#ifdef _IRR_OPENGL_USE_EXTPOINTER_
if (!pGlActiveTextureARB || !pGlClientActiveTextureARB)
{
MultiTextureExtension = false;
os::Printer::log("Failed to load OpenGL's multitexture extension, proceeding without.", ELL_WARNING);
}
else
#endif
if (MaxTextureUnits < 2)
{
MultiTextureExtension = false;
os::Printer::log("Warning: OpenGL device only has one texture unit. Disabling multitexturing.", ELL_WARNING);
}
MaxTextureUnits = core::min_((u32)MaxTextureUnits,MATERIAL_MAX_TEXTURES);
glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &MaxIndices);
}
