Shortword toSwFloat(double dIn)
{
return (round32(toLwFloat(dIn)));
}
void COpenGLExtensionHandler::initExtensions(bool stencilBuffer)
{
const Real ogl_ver = fast_atof(reinterpret_cast<const c8*>(glGetString(GL_VERSION)));
Version = static_cast<UINT16>(floor32(ogl_ver) * 100 + round32(fract(ogl_ver)*10.0f));
if (Version >= 102)
Printer::log("OpenGL driver version is 1.2 or better.", LML_NORMAL);
else
Printer::log("OpenGL driver version is not 1.2 or better.", LML_CRITICAL);
{
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 (UINT32 j = 0; j<SAPPHIRE_OpenGL_Feature_Count; ++j)
{
if (!strcmp(OpenGLFeatureStrings[j], p))
{
FeatureAvailable[j] = true;
break;
}
}
p = p + strlen(p) + 1;
}
}
delete[] str;
}
MultiTextureExtension = FeatureAvailable[SAPPHIRE_ARB_multitexture];
TextureCompressionExtension = FeatureAvailable[SAPPHIRE_ARB_texture_compression];
StencilBuffer = stencilBuffer;
#ifdef SAPPHIRE_OPENGL_USE_EXTPOINTER
#if (SAPPHIRE_PLATFORM == SAPPHIRE_PLATFORM_WIN32)
#define SAPPHIRE_OGL_LOAD_EXTENSION(x) wglGetProcAddress(reinterpret_cast<const char*>(x))
#elif defined(_SAPPHIRE_COMPILE_WITH_SDL_DEVICE_) && !defined(_SAPPHIRE_COMPILE_WITH_X11_DEVICE_)
#define SAPPHIRE_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 _SAPPHIRE_GETPROCADDRESS_WORKAROUND_
#ifndef _SAPPHIRE_GETPROCADDRESS_WORKAROUND_
__GLXextFuncPtr(*SAPPHIRE_OGL_LOAD_EXTENSION_FUNCP)(const GLubyte*) = 0;
#ifdef GLX_VERSION_1_4
int major = 0, minor = 0;
if (glXGetCurrentDisplay())
glXQueryVersion(glXGetCurrentDisplay(), &major, &minor);
if ((major>1) || (minor>3))
SAPPHIRE_OGL_LOAD_EXTENSION_FUNCP = glXGetProcAddress;
else
#endif
SAPPHIRE_OGL_LOAD_EXTENSION_FUNCP = glXGetProcAddressARB;
#define SAPPHIRE_OGL_LOAD_EXTENSION(X) SAPPHIRE_OGL_LOAD_EXTENSION_FUNCP(reinterpret_cast<const GLubyte*>(X))
#else
#define SAPPHIRE_OGL_LOAD_EXTENSION(X) glXGetProcAddressARB(reinterpret_cast<const GLubyte*>(X))
#endif // workaround
#endif // Windows, SDL, or Linux
// get multitexturing function pointers
pGlActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glActiveTextureARB");
pGlClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glClientActiveTextureARB");
// get fragment and vertex program function pointers
pGlGenProgramsARB = (PFNGLGENPROGRAMSARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenProgramsARB");
pGlGenProgramsNV = (PFNGLGENPROGRAMSNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenProgramsNV");
pGlBindProgramARB = (PFNGLBINDPROGRAMARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBindProgramARB");
pGlBindProgramNV = (PFNGLBINDPROGRAMNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBindProgramNV");
pGlProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glProgramStringARB");
pGlLoadProgramNV = (PFNGLLOADPROGRAMNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glLoadProgramNV");
pGlDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteProgramsARB");
pGlDeleteProgramsNV = (PFNGLDELETEPROGRAMSNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteProgramsNV");
pGlProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glProgramLocalParameter4fvARB");
pGlCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCreateShaderObjectARB");
pGlCreateShader = (PFNGLCREATESHADERPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCreateShader");
pGlShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glShaderSourceARB");
pGlShaderSource = (PFNGLSHADERSOURCEPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glShaderSource");
pGlCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCompileShaderARB");
pGlCompileShader = (PFNGLCOMPILESHADERPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCompileShader");
pGlCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCreateProgramObjectARB");
pGlCreateProgram = (PFNGLCREATEPROGRAMPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCreateProgram");
pGlAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glAttachObjectARB");
pGlAttachShader = (PFNGLATTACHSHADERPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glAttachShader");
pGlLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glLinkProgramARB");
pGlLinkProgram = (PFNGLLINKPROGRAMPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glLinkProgram");
pGlUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUseProgramObjectARB");
pGlUseProgram = (PFNGLUSEPROGRAMPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUseProgram");
pGlDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteObjectARB");
pGlDeleteProgram = (PFNGLDELETEPROGRAMPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteProgram");
pGlDeleteShader = (PFNGLDELETESHADERPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteShader");
pGlGetAttachedShaders = (PFNGLGETATTACHEDSHADERSPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetAttachedShaders");
pGlGetAttachedObjectsARB = (PFNGLGETATTACHEDOBJECTSARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetAttachedObjectsARB");
pGlGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetInfoLogARB");
pGlGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetShaderInfoLog");
pGlGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetProgramInfoLog");
pGlGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetObjectParameterivARB");
pGlGetShaderiv = (PFNGLGETSHADERIVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetShaderiv");
pGlGetProgramiv = (PFNGLGETPROGRAMIVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetProgramiv");
pGlGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetUniformLocationARB");
pGlGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetUniformLocation");
pGlUniform1fvARB = (PFNGLUNIFORM1FVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniform1fvARB");
pGlUniform2fvARB = (PFNGLUNIFORM2FVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniform2fvARB");
pGlUniform3fvARB = (PFNGLUNIFORM3FVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniform3fvARB");
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniform4fvARB");
pGlUniform1ivARB = (PFNGLUNIFORM1IVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniform1ivARB");
pGlUniform2ivARB = (PFNGLUNIFORM2IVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniform2ivARB");
pGlUniform3ivARB = (PFNGLUNIFORM3IVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniform3ivARB");
pGlUniform4ivARB = (PFNGLUNIFORM4IVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniform4ivARB");
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniformMatrix2fvARB");
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniformMatrix3fvARB");
pGlUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUniformMatrix4fvARB");
pGlGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetActiveUniformARB");
pGlGetActiveUniform = (PFNGLGETACTIVEUNIFORMPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetActiveUniform");
// get point parameter extension
pGlPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glPointParameterfARB");
pGlPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glPointParameterfvARB");
// get stencil extension
pGlStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glStencilFuncSeparate");
pGlStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glStencilOpSeparate");
pGlStencilFuncSeparateATI = (PFNGLSTENCILFUNCSEPARATEATIPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glStencilFuncSeparateATI");
pGlStencilOpSeparateATI = (PFNGLSTENCILOPSEPARATEATIPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glStencilOpSeparateATI");
// compressed textures
pGlCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCompressedTexImage2D");
// ARB FrameBufferObjects
pGlBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBindFramebuffer");
pGlDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteFramebuffers");
pGlGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenFramebuffers");
pGlCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCheckFramebufferStatus");
pGlFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glFramebufferTexture2D");
pGlBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBindRenderbuffer");
pGlDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteRenderbuffers");
pGlGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenRenderbuffers");
pGlRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glRenderbufferStorage");
pGlFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glFramebufferRenderbuffer");
pGlGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenerateMipmap");
// EXT FrameBufferObjects
pGlBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBindFramebufferEXT");
pGlDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteFramebuffersEXT");
pGlGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenFramebuffersEXT");
pGlCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glCheckFramebufferStatusEXT");
pGlFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glFramebufferTexture2DEXT");
pGlBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBindRenderbufferEXT");
pGlDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteRenderbuffersEXT");
pGlGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenRenderbuffersEXT");
pGlRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glRenderbufferStorageEXT");
pGlFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glFramebufferRenderbufferEXT");
pGlGenerateMipmapEXT = (PFNGLGENERATEMIPMAPEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenerateMipmapEXT");
pGlDrawBuffersARB = (PFNGLDRAWBUFFERSARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDrawBuffersARB");
pGlDrawBuffersATI = (PFNGLDRAWBUFFERSATIPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDrawBuffersATI");
// get vertex buffer extension
pGlGenBuffersARB = (PFNGLGENBUFFERSARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenBuffersARB");
pGlBindBufferARB = (PFNGLBINDBUFFERARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBindBufferARB");
pGlBufferDataARB = (PFNGLBUFFERDATAARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBufferDataARB");
pGlDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteBuffersARB");
pGlBufferSubDataARB = (PFNGLBUFFERSUBDATAARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBufferSubDataARB");
pGlGetBufferSubDataARB = (PFNGLGETBUFFERSUBDATAARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetBufferSubDataARB");
pGlMapBufferARB = (PFNGLMAPBUFFERARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glMapBufferARB");
pGlUnmapBufferARB = (PFNGLUNMAPBUFFERARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glUnmapBufferARB");
pGlIsBufferARB = (PFNGLISBUFFERARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glIsBufferARB");
pGlGetBufferParameterivARB = (PFNGLGETBUFFERPARAMETERIVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetBufferParameterivARB");
pGlGetBufferPointervARB = (PFNGLGETBUFFERPOINTERVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetBufferPointervARB");
pGlProvokingVertexARB = (PFNGLPROVOKINGVERTEXPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glProvokingVertex");
pGlProvokingVertexEXT = (PFNGLPROVOKINGVERTEXEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glProvokingVertexEXT");
pGlColorMaskIndexedEXT = (PFNGLCOLORMASKINDEXEDEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glColorMaskIndexedEXT");
pGlEnableIndexedEXT = (PFNGLENABLEINDEXEDEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glEnableIndexedEXT");
pGlDisableIndexedEXT = (PFNGLDISABLEINDEXEDEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDisableIndexedEXT");
pGlBlendFuncIndexedAMD = (PFNGLBLENDFUNCINDEXEDAMDPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBlendFuncIndexedAMD");
pGlBlendFunciARB = (PFNGLBLENDFUNCIPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBlendFunciARB");
pGlBlendEquationIndexedAMD = (PFNGLBLENDEQUATIONINDEXEDAMDPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBlendEquationIndexedAMD");
pGlBlendEquationiARB = (PFNGLBLENDEQUATIONIPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBlendEquationiARB");
pGlProgramParameteriARB = (PFNGLPROGRAMPARAMETERIARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glProgramParameteriARB");
pGlProgramParameteriEXT = (PFNGLPROGRAMPARAMETERIEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glProgramParameteriEXT");
// occlusion query
pGlGenQueriesARB = (PFNGLGENQUERIESARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenQueriesARB");
pGlDeleteQueriesARB = (PFNGLDELETEQUERIESARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteQueriesARB");
pGlIsQueryARB = (PFNGLISQUERYARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glIsQueryARB");
pGlBeginQueryARB = (PFNGLBEGINQUERYARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBeginQueryARB");
pGlEndQueryARB = (PFNGLENDQUERYARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glEndQueryARB");
pGlGetQueryivARB = (PFNGLGETQUERYIVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetQueryivARB");
pGlGetQueryObjectivARB = (PFNGLGETQUERYOBJECTIVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetQueryObjectivARB");
pGlGetQueryObjectuivARB = (PFNGLGETQUERYOBJECTUIVARBPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetQueryObjectuivARB");
pGlGenOcclusionQueriesNV = (PFNGLGENOCCLUSIONQUERIESNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGenOcclusionQueriesNV");
pGlDeleteOcclusionQueriesNV = (PFNGLDELETEOCCLUSIONQUERIESNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glDeleteOcclusionQueriesNV");
pGlIsOcclusionQueryNV = (PFNGLISOCCLUSIONQUERYNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glIsOcclusionQueryNV");
pGlBeginOcclusionQueryNV = (PFNGLBEGINOCCLUSIONQUERYNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBeginOcclusionQueryNV");
pGlEndOcclusionQueryNV = (PFNGLENDOCCLUSIONQUERYNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glEndOcclusionQueryNV");
pGlGetOcclusionQueryivNV = (PFNGLGETOCCLUSIONQUERYIVNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetOcclusionQueryivNV");
pGlGetOcclusionQueryuivNV = (PFNGLGETOCCLUSIONQUERYUIVNVPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glGetOcclusionQueryuivNV");
// blend equation
pGlBlendEquationEXT = (PFNGLBLENDEQUATIONEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBlendEquationEXT");
pGlBlendEquation = (PFNGLBLENDEQUATIONPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glBlendEquation");
// get vsync extension
#if defined(WGL_EXT_swap_control) && !defined(_SAPPHIRE_COMPILE_WITH_SDL_DEVICE_)
pWglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("wglSwapIntervalEXT");
#endif
#if defined(GLX_SGI_swap_control) && !defined(_SAPPHIRE_COMPILE_WITH_SDL_DEVICE_)
pGlxSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glXSwapIntervalSGI");
#endif
#if defined(GLX_EXT_swap_control) && !defined(_SAPPHIRE_COMPILE_WITH_SDL_DEVICE_)
pGlxSwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glXSwapIntervalEXT");
#endif
#if defined(GLX_MESA_swap_control) && !defined(_SAPPHIRE_COMPILE_WITH_SDL_DEVICE_)
pGlxSwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)SAPPHIRE_OGL_LOAD_EXTENSION("glXSwapIntervalMESA");
#endif
#endif // use extension pointer
GLint num = 0;
// set some properties
#if defined(GL_ARB_multitexture) || defined(GL_VERSION_1_3)
if (Version>102 || FeatureAvailable[SAPPHIRE_ARB_multitexture])
{
#if defined(GL_MAX_TEXTURE_UNITS)
glGetIntegerv(GL_MAX_TEXTURE_UNITS, &num);
#elif defined(GL_MAX_TEXTURE_UNITS_ARB)
glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &num);
#endif
MaxSupportedTextures = static_cast<UINT8>(num);
}
#endif
#if defined(GL_ARB_vertex_shader) || defined(GL_VERSION_2_0)
if (Version >= 200 || FeatureAvailable[SAPPHIRE_ARB_vertex_shader])
{
num = 0;
#if defined(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS)
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &num);
#elif defined(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB)
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, &num);
#endif
MaxSupportedTextures = Math::_max<UINT8>(MaxSupportedTextures, static_cast<UINT8>(num));
}
#endif
glGetIntegerv(GL_MAX_LIGHTS, &num);
MaxLights = static_cast<UINT8>(num);
#ifdef GL_EXT_texture_filter_anisotropic
if (FeatureAvailable[SAPPHIRE_EXT_texture_filter_anisotropic])
{
glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &num);
MaxAnisotropy = static_cast<UINT8>(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<UINT32>(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<UINT32>(num);
#elif defined(GL_NV_geometry_program4)
extGlGetProgramiv(GEOMETRY_PROGRAM_NV, GL_MAX_PROGRAM_OUTPUT_VERTICES_NV, &num);
MaxGeometryVerticesOut = static_cast<UINT32>(num);
#endif
}
#ifdef GL_EXT_texture_lod_bias
if (FeatureAvailable[SAPPHIRE_EXT_texture_lod_bias])
glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &MaxTextureLODBias);
#endif
glGetIntegerv(GL_MAX_CLIP_PLANES, &num);
MaxUserClipPlanes = static_cast<UINT8>(num);
glGetIntegerv(GL_AUX_BUFFERS, &num);
MaxAuxBuffers = static_cast<UINT8>(num);
#ifdef GL_ARB_draw_buffers
if (FeatureAvailable[SAPPHIRE_ARB_draw_buffers])
{
glGetIntegerv(GL_MAX_DRAW_BUFFERS_ARB, &num);
MaxMultipleRenderTargets = static_cast<UINT8>(num);
}
#endif
#if defined(GL_ATI_draw_buffers)
#ifdef GL_ARB_draw_buffers
else
#endif
if (FeatureAvailable[SAPPHIRE_ATI_draw_buffers])
{
glGetIntegerv(GL_MAX_DRAW_BUFFERS_ATI, &num);
MaxMultipleRenderTargets = static_cast<UINT8>(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[SAPPHIRE_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 Real sl_ver = fast_atof(reinterpret_cast<const c8*>(shaderVersion));
ShaderLanguageVersion = static_cast<UINT16>(floor32(sl_ver) * 100 + round32(fract(sl_ver)*10.0f));
}
}
#endif
#ifdef SAPPHIRE_OPENGL_USE_EXTPOINTER
if (!pGlActiveTextureARB || !pGlClientActiveTextureARB)
{
MultiTextureExtension = false;
Printer::log("Failed to load OpenGL's multitexture extension, proceeding without.", LML_CRITICAL);
}
else
#endif
MaxTextureUnits = Math::_min(MaxSupportedTextures, static_cast<UINT8>(MATERIAL_MAX_TEXTURES));
if (MaxTextureUnits < 2)
{
MultiTextureExtension = false;
Printer::log("Warning: OpenGL device only has one texture unit. Disabling multitexturing.", LML_CRITICAL);
}
#ifdef GL_ARB_occlusion_query
if (FeatureAvailable[SAPPHIRE_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[SAPPHIRE_NV_occlusion_query])
{
glGetIntegerv(GL_PIXEL_COUNTER_BITS_NV, &num);
OcclusionQuerySupport = (num>0);
}
else
#endif
OcclusionQuerySupport = false;
#ifdef _DEBUG
if (FeatureAvailable[SAPPHIRE_NVX_gpu_memory_info])
{
// undocumented flags, so use the RAW values
GLint val = 0;
StringUtil::StrStreamType ss;
ss << val;
glGetIntegerv(0x9047, &val);
Printer::log("Dedicated video memory (kB)", ss.str());
glGetIntegerv(0x9048, &val);
Printer::log("Total video memory (kB)", ss.str());
glGetIntegerv(0x9049, &val);
Printer::log("Available video memory (kB)", ss.str());
}
#ifdef GL_ATI_meminfo
if (FeatureAvailable[SAPPHIRE_ATI_meminfo])
{
GLint val[4];
StringUtil::StrStreamType ss;
ss << val;
glGetIntegerv(GL_TEXTURE_FREE_MEMORY_ATI, val);
Printer::log("Free texture memory (kB)", ss.str());
glGetIntegerv(GL_VBO_FREE_MEMORY_ATI, val);
Printer::log("Free VBO memory (kB)", ss.str());
glGetIntegerv(GL_RENDERBUFFER_FREE_MEMORY_ATI, val);
Printer::log("Free render buffer memory (kB)", ss.str());
}
#endif
#endif
}
