820 lines
36 KiB
C++
820 lines
36 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include "IrrCompileConfig.h"
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#ifdef _IRR_COMPILE_WITH_OPENGL_
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#include "COpenGLExtensionHandler.h"
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#include "irrString.h"
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#include "SMaterial.h" // for MATERIAL_MAX_TEXTURES
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#include "fast_atof.h"
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namespace irr
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{
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namespace video
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{
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extern bool useCoreContext;
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COpenGLExtensionHandler::COpenGLExtensionHandler() :
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StencilBuffer(false), MultiTextureExtension(false),
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TextureCompressionExtension(false),
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MaxSupportedTextures(1), MaxTextureUnits(1), MaxLights(1),
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MaxAnisotropy(1), MaxUserClipPlanes(0), MaxAuxBuffers(0),
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MaxMultipleRenderTargets(1), MaxIndices(65535),
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MaxTextureSize(1), MaxGeometryVerticesOut(0),
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MaxTextureLODBias(0.f), Version(0), ShaderLanguageVersion(0),
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OcclusionQuerySupport(false)
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#ifdef _IRR_OPENGL_USE_EXTPOINTER_
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,pGlActiveTextureARB(0), pGlClientActiveTextureARB(0),
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pGlGenProgramsARB(0), pGlGenProgramsNV(0),
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pGlBindProgramARB(0), pGlBindProgramNV(0),
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pGlDeleteProgramsARB(0), pGlDeleteProgramsNV(0),
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pGlProgramStringARB(0), pGlLoadProgramNV(0),
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pGlProgramLocalParameter4fvARB(0),
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pGlCreateShaderObjectARB(0), pGlShaderSourceARB(0),
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pGlCompileShaderARB(0), pGlCreateProgramObjectARB(0), pGlAttachObjectARB(0),
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pGlLinkProgramARB(0), pGlUseProgramObjectARB(0), pGlDeleteObjectARB(0),
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pGlCreateProgram(0), pGlUseProgram(0),
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pGlDeleteProgram(0), pGlDeleteShader(0),
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pGlGetAttachedObjectsARB(0), pGlGetAttachedShaders(0),
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pGlCreateShader(0), pGlShaderSource(0), pGlCompileShader(0),
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pGlAttachShader(0), pGlLinkProgram(0),
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pGlGetInfoLogARB(0), pGlGetShaderInfoLog(0), pGlGetProgramInfoLog(0),
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pGlGetObjectParameterivARB(0), pGlGetShaderiv(0), pGlGetProgramiv(0),
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pGlGetUniformLocationARB(0), pGlGetUniformLocation(0),
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pGlUniform1fvARB(0), pGlUniform2fvARB(0), pGlUniform3fvARB(0), pGlUniform4fvARB(0),
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pGlUniform1ivARB(0), pGlUniform2ivARB(0), pGlUniform3ivARB(0), pGlUniform4ivARB(0),
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pGlUniformMatrix2fvARB(0), pGlUniformMatrix3fvARB(0), pGlUniformMatrix4fvARB(0),
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pGlGetActiveUniformARB(0), pGlGetActiveUniform(0),
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pGlPointParameterfARB(0), pGlPointParameterfvARB(0),
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pGlStencilFuncSeparate(0), pGlStencilOpSeparate(0),
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pGlStencilFuncSeparateATI(0), pGlStencilOpSeparateATI(0),
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pGlCompressedTexImage2D(0),
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// ARB framebuffer object
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pGlBindFramebuffer(0), pGlDeleteFramebuffers(0), pGlGenFramebuffers(0),
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pGlCheckFramebufferStatus(0), pGlFramebufferTexture2D(0),
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pGlBindRenderbuffer(0), pGlDeleteRenderbuffers(0), pGlGenRenderbuffers(0),
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pGlRenderbufferStorage(0), pGlFramebufferRenderbuffer(0), pGlGenerateMipmap(0),
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// EXT framebuffer object
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pGlBindFramebufferEXT(0), pGlDeleteFramebuffersEXT(0), pGlGenFramebuffersEXT(0),
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pGlCheckFramebufferStatusEXT(0), pGlFramebufferTexture2DEXT(0),
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pGlBindRenderbufferEXT(0), pGlDeleteRenderbuffersEXT(0), pGlGenRenderbuffersEXT(0),
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pGlRenderbufferStorageEXT(0), pGlFramebufferRenderbufferEXT(0), pGlGenerateMipmapEXT(0),
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// MRTs
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pGlDrawBuffersARB(0), pGlDrawBuffersATI(0),
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pGlGenBuffersARB(0), pGlBindBufferARB(0), pGlBufferDataARB(0), pGlDeleteBuffersARB(0),
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pGlBufferSubDataARB(0), pGlGetBufferSubDataARB(0), pGlMapBufferARB(0), pGlUnmapBufferARB(0),
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pGlIsBufferARB(0), pGlGetBufferParameterivARB(0), pGlGetBufferPointervARB(0),
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pGlProvokingVertexARB(0), pGlProvokingVertexEXT(0),
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pGlColorMaskIndexedEXT(0), pGlEnableIndexedEXT(0), pGlDisableIndexedEXT(0),
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pGlBlendFuncIndexedAMD(0), pGlBlendFunciARB(0),
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pGlBlendEquationIndexedAMD(0), pGlBlendEquationiARB(0),
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pGlProgramParameteriARB(0), pGlProgramParameteriEXT(0),
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pGlGenQueriesARB(0), pGlDeleteQueriesARB(0), pGlIsQueryARB(0),
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pGlBeginQueryARB(0), pGlEndQueryARB(0), pGlGetQueryivARB(0),
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pGlGetQueryObjectivARB(0), pGlGetQueryObjectuivARB(0),
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pGlGenOcclusionQueriesNV(0), pGlDeleteOcclusionQueriesNV(0),
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pGlIsOcclusionQueryNV(0), pGlBeginOcclusionQueryNV(0),
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pGlEndOcclusionQueryNV(0), pGlGetOcclusionQueryivNV(0),
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pGlGetOcclusionQueryuivNV(0),
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pGlBlendEquationEXT(0), pGlBlendEquation(0)
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#if defined(GLX_SGI_swap_control)
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,pGlxSwapIntervalSGI(0)
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#endif
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#if defined(GLX_EXT_swap_control)
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,pGlxSwapIntervalEXT(0)
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#endif
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#if defined(WGL_EXT_swap_control)
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,pWglSwapIntervalEXT(0)
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#endif
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#if defined(GLX_MESA_swap_control)
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,pGlxSwapIntervalMESA(0)
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#endif
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#endif // _IRR_OPENGL_USE_EXTPOINTER_
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{
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for (u32 i=0; i<IRR_OpenGL_Feature_Count; ++i)
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FeatureAvailable[i]=true;
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DimAliasedLine[0]=1.f;
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DimAliasedLine[1]=1.f;
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DimAliasedPoint[0]=1.f;
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DimAliasedPoint[1]=1.f;
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DimSmoothedLine[0]=1.f;
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DimSmoothedLine[1]=1.f;
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DimSmoothedPoint[0]=1.f;
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DimSmoothedPoint[1]=1.f;
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}
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void COpenGLExtensionHandler::dump() const
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{
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for (u32 i=0; i<IRR_OpenGL_Feature_Count; ++i)
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os::Printer::log(OpenGLFeatureStrings[i], FeatureAvailable[i]?" true":" false");
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}
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void COpenGLExtensionHandler::dumpFramebufferFormats() const
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{
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#ifdef _IRR_WINDOWS_API_
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#if defined(_IRR_COMPILE_WITH_SDL_DEVICE_)
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typedef HDC (APIENTRY * wglGetCurrentDC_func)();
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wglGetCurrentDC_func wglGetCurrentDC_ptr = NULL;
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wglGetCurrentDC_ptr = (wglGetCurrentDC_func)SDL_GL_GetProcAddress("wglGetCurrentDC");
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HDC hdc=wglGetCurrentDC_ptr();
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#else
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HDC hdc=wglGetCurrentDC();
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#endif
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core::stringc wglExtensions;
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#ifdef WGL_ARB_extensions_string
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PFNWGLGETEXTENSIONSSTRINGARBPROC irrGetExtensionsString = (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
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if (irrGetExtensionsString)
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wglExtensions = irrGetExtensionsString(hdc);
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#elif defined(WGL_EXT_extensions_string)
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PFNWGLGETEXTENSIONSSTRINGEXTPROC irrGetExtensionsString = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)wglGetProcAddress("wglGetExtensionsStringEXT");
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if (irrGetExtensionsString)
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wglExtensions = irrGetExtensionsString(hdc);
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#endif
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const bool pixel_format_supported = (wglExtensions.find("WGL_ARB_pixel_format") != -1);
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const bool multi_sample_supported = ((wglExtensions.find("WGL_ARB_multisample") != -1) ||
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(wglExtensions.find("WGL_EXT_multisample") != -1) || (wglExtensions.find("WGL_3DFX_multisample") != -1) );
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#ifdef _DEBUG
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os::Printer::log("WGL_extensions", wglExtensions);
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#endif
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#ifdef WGL_ARB_pixel_format
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PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormat_ARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
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if (pixel_format_supported && wglChoosePixelFormat_ARB)
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{
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// This value determines the number of samples used for antialiasing
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// My experience is that 8 does not show a big
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// improvement over 4, but 4 shows a big improvement
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// over 2.
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PFNWGLGETPIXELFORMATATTRIBIVARBPROC wglGetPixelFormatAttribiv_ARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC)wglGetProcAddress("wglGetPixelFormatAttribivARB");
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if (wglGetPixelFormatAttribiv_ARB)
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{
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int vals[128];
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int atts[] = {
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WGL_NUMBER_PIXEL_FORMATS_ARB,
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WGL_DRAW_TO_BITMAP_ARB,
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WGL_ACCELERATION_ARB,
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WGL_NEED_PALETTE_ARB,
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WGL_NEED_SYSTEM_PALETTE_ARB,
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WGL_SWAP_LAYER_BUFFERS_ARB,
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WGL_SWAP_METHOD_ARB,
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WGL_NUMBER_OVERLAYS_ARB,
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WGL_NUMBER_UNDERLAYS_ARB,
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WGL_TRANSPARENT_ARB,
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WGL_TRANSPARENT_RED_VALUE_ARB,
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WGL_TRANSPARENT_GREEN_VALUE_ARB,
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WGL_TRANSPARENT_BLUE_VALUE_ARB,
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WGL_TRANSPARENT_ALPHA_VALUE_ARB,
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WGL_TRANSPARENT_INDEX_VALUE_ARB,
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WGL_SHARE_DEPTH_ARB,
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WGL_SHARE_STENCIL_ARB,
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WGL_SHARE_ACCUM_ARB,
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WGL_SUPPORT_GDI_ARB,
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WGL_SUPPORT_OPENGL_ARB,
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WGL_DOUBLE_BUFFER_ARB,
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WGL_STEREO_ARB,
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WGL_PIXEL_TYPE_ARB,
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WGL_COLOR_BITS_ARB,
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WGL_RED_BITS_ARB,
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WGL_RED_SHIFT_ARB,
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WGL_GREEN_BITS_ARB,
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WGL_GREEN_SHIFT_ARB,
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WGL_BLUE_BITS_ARB,
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WGL_BLUE_SHIFT_ARB,
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WGL_ALPHA_BITS_ARB,
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WGL_ALPHA_SHIFT_ARB,
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WGL_ACCUM_BITS_ARB,
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WGL_ACCUM_RED_BITS_ARB,
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WGL_ACCUM_GREEN_BITS_ARB,
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WGL_ACCUM_BLUE_BITS_ARB,
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WGL_ACCUM_ALPHA_BITS_ARB,
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WGL_DEPTH_BITS_ARB,
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WGL_STENCIL_BITS_ARB,
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WGL_AUX_BUFFERS_ARB
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#ifdef WGL_ARB_render_texture
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,WGL_BIND_TO_TEXTURE_RGB_ARB //40
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,WGL_BIND_TO_TEXTURE_RGBA_ARB
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#endif
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#ifdef WGL_ARB_pbuffer
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,WGL_DRAW_TO_PBUFFER_ARB //42
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,WGL_MAX_PBUFFER_PIXELS_ARB
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,WGL_MAX_PBUFFER_WIDTH_ARB
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,WGL_MAX_PBUFFER_HEIGHT_ARB
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#endif
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#ifdef WGL_ARB_framebuffer_sRGB
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,WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB //46
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#endif
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#ifdef WGL_ARB_multisample
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,WGL_SAMPLES_ARB //47
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,WGL_SAMPLE_BUFFERS_ARB
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#endif
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#ifdef WGL_EXT_depth_float
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,WGL_DEPTH_FLOAT_EXT //49
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#endif
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,0,0,0,0
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};
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u32 nums = sizeof(atts)/sizeof(int);
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const bool depth_float_supported= (wglExtensions.find("WGL_EXT_depth_float") != -1);
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if (!depth_float_supported)
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{
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memmove(&atts[49], &atts[50], (nums-50)*sizeof(int));
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nums -= 1;
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}
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if (!multi_sample_supported)
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{
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memmove(&atts[47], &atts[49], (nums-49)*sizeof(int));
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nums -= 2;
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}
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const bool framebuffer_sRGB_supported= (wglExtensions.find("WGL_ARB_framebuffer_sRGB") != -1);
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if (!framebuffer_sRGB_supported)
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{
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memmove(&atts[46], &atts[47], (nums-47)*sizeof(int));
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nums -= 1;
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}
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const bool pbuffer_supported = (wglExtensions.find("WGL_ARB_pbuffer") != -1);
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if (!pbuffer_supported)
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{
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memmove(&atts[42], &atts[46], (nums-46)*sizeof(int));
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nums -= 4;
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}
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const bool render_texture_supported = (wglExtensions.find("WGL_ARB_render_texture") != -1);
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if (!render_texture_supported)
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{
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memmove(&atts[40], &atts[42], (nums-42)*sizeof(int));
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nums -= 2;
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}
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wglGetPixelFormatAttribiv_ARB(hdc,0,0,1,atts,vals);
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const int count = vals[0];
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atts[0]=WGL_DRAW_TO_WINDOW_ARB;
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for (int i=1; i<count; ++i)
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{
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memset(vals,0,sizeof(vals));
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#define tmplog(x,y) os::Printer::log(x, core::stringc(y).c_str())
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const BOOL res = wglGetPixelFormatAttribiv_ARB(hdc,i,0,nums,atts,vals);
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if (FALSE==res)
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continue;
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tmplog("Pixel format ",i);
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u32 j=0;
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tmplog("Draw to window " , vals[j]);
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tmplog("Draw to bitmap " , vals[++j]);
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++j;
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tmplog("Acceleration " , (vals[j]==WGL_NO_ACCELERATION_ARB?"No":
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vals[j]==WGL_GENERIC_ACCELERATION_ARB?"Generic":vals[j]==WGL_FULL_ACCELERATION_ARB?"Full":"ERROR"));
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tmplog("Need palette " , vals[++j]);
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tmplog("Need system palette " , vals[++j]);
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tmplog("Swap layer buffers " , vals[++j]);
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++j;
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tmplog("Swap method " , (vals[j]==WGL_SWAP_EXCHANGE_ARB?"Exchange":
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vals[j]==WGL_SWAP_COPY_ARB?"Copy":vals[j]==WGL_SWAP_UNDEFINED_ARB?"Undefined":"ERROR"));
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tmplog("Number of overlays " , vals[++j]);
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tmplog("Number of underlays " , vals[++j]);
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tmplog("Transparent " , vals[++j]);
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tmplog("Transparent red value " , vals[++j]);
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tmplog("Transparent green value " , vals[++j]);
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tmplog("Transparent blue value " , vals[++j]);
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tmplog("Transparent alpha value " , vals[++j]);
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tmplog("Transparent index value " , vals[++j]);
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tmplog("Share depth " , vals[++j]);
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tmplog("Share stencil " , vals[++j]);
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tmplog("Share accum " , vals[++j]);
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tmplog("Support GDI " , vals[++j]);
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tmplog("Support OpenGL " , vals[++j]);
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tmplog("Double Buffer " , vals[++j]);
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tmplog("Stereo Buffer " , vals[++j]);
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tmplog("Pixel type " , vals[++j]);
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tmplog("Color bits" , vals[++j]);
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tmplog("Red bits " , vals[++j]);
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tmplog("Red shift " , vals[++j]);
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tmplog("Green bits " , vals[++j]);
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tmplog("Green shift " , vals[++j]);
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tmplog("Blue bits " , vals[++j]);
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tmplog("Blue shift " , vals[++j]);
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tmplog("Alpha bits " , vals[++j]);
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tmplog("Alpha Shift " , vals[++j]);
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tmplog("Accum bits " , vals[++j]);
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tmplog("Accum red bits " , vals[++j]);
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tmplog("Accum green bits " , vals[++j]);
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tmplog("Accum blue bits " , vals[++j]);
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tmplog("Accum alpha bits " , vals[++j]);
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tmplog("Depth bits " , vals[++j]);
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tmplog("Stencil bits " , vals[++j]);
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tmplog("Aux buffers " , vals[++j]);
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if (render_texture_supported)
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{
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tmplog("Bind to texture RGB" , vals[++j]);
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tmplog("Bind to texture RGBA" , vals[++j]);
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}
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if (pbuffer_supported)
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{
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tmplog("Draw to pbuffer" , vals[++j]);
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tmplog("Max pbuffer pixels " , vals[++j]);
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tmplog("Max pbuffer width" , vals[++j]);
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tmplog("Max pbuffer height" , vals[++j]);
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}
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if (framebuffer_sRGB_supported)
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tmplog("Framebuffer sRBG capable" , vals[++j]);
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if (multi_sample_supported)
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{
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tmplog("Samples " , vals[++j]);
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tmplog("Sample buffers " , vals[++j]);
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}
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if (depth_float_supported)
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tmplog("Depth float" , vals[++j]);
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#undef tmplog
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}
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}
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}
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#endif
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#elif defined(IRR_LINUX_DEVICE)
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#endif
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}
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void COpenGLExtensionHandler::initExtensions(bool stencilBuffer, bool useCoreContext)
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{
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const f32 ogl_ver = core::fast_atof(reinterpret_cast<const c8*>(glGetString(GL_VERSION)));
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Version = static_cast<u16>(core::floor32(ogl_ver)*100+core::round32(core::fract(ogl_ver)*10.0f));
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if ( Version >= 102)
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os::Printer::log("OpenGL driver version is 1.2 or better.", ELL_INFORMATION);
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else
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os::Printer::log("OpenGL driver version is not 1.2 or better.", ELL_WARNING);
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if (!useCoreContext)
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{
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for (u32 i = 0; i < IRR_OpenGL_Feature_Count; i++)
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FeatureAvailable[i] = false;
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const char* t = NULL;
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size_t len = 0;
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c8 *str = 0;
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t = reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS));
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if (t)
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{
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len = strlen(t);
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str = new c8[len+1];
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}
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c8* p = str;
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for (size_t i=0; i<len; ++i)
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{
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str[i] = static_cast<char>(t[i]);
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if (str[i] == ' ')
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{
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str[i] = 0;
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for (u32 j=0; j<IRR_OpenGL_Feature_Count; ++j)
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{
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if (!strcmp(OpenGLFeatureStrings[j], p))
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{
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FeatureAvailable[j] = true;
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break;
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}
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}
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p = p + strlen(p) + 1;
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}
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}
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delete [] str;
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}
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MultiTextureExtension = FeatureAvailable[IRR_ARB_multitexture];
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TextureCompressionExtension = FeatureAvailable[IRR_ARB_texture_compression];
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StencilBuffer=stencilBuffer;
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#ifdef _IRR_OPENGL_USE_EXTPOINTER_
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#if defined(_IRR_COMPILE_WITH_SDL_DEVICE_) && !defined(_IRR_COMPILE_WITH_X11_DEVICE_)
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#define IRR_OGL_LOAD_EXTENSION(x) SDL_GL_GetProcAddress(reinterpret_cast<const char*>(x))
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#elif defined (_IRR_WINDOWS_API_)
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#define IRR_OGL_LOAD_EXTENSION(x) wglGetProcAddress(reinterpret_cast<const char*>(x))
|
|
|
|
// 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_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))
|
|
IRR_OGL_LOAD_EXTENSION_FUNCP=glXGetProcAddress;
|
|
else
|
|
#endif
|
|
IRR_OGL_LOAD_EXTENSION_FUNCP=glXGetProcAddressARB;
|
|
#define IRR_OGL_LOAD_EXTENSION(X) IRR_OGL_LOAD_EXTENSION_FUNCP(reinterpret_cast<const GLubyte*>(X))
|
|
#else
|
|
#define IRR_OGL_LOAD_EXTENSION(X) glXGetProcAddressARB(reinterpret_cast<const GLubyte*>(X))
|
|
#endif // workaround
|
|
#endif // Windows, SDL, or Linux
|
|
|
|
// get multitexturing function pointers
|
|
pGlActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC) IRR_OGL_LOAD_EXTENSION("glActiveTextureARB");
|
|
pGlClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC) IRR_OGL_LOAD_EXTENSION("glClientActiveTextureARB");
|
|
|
|
// get fragment and vertex program function pointers
|
|
pGlGenProgramsARB = (PFNGLGENPROGRAMSARBPROC) IRR_OGL_LOAD_EXTENSION("glGenProgramsARB");
|
|
pGlGenProgramsNV = (PFNGLGENPROGRAMSNVPROC) IRR_OGL_LOAD_EXTENSION("glGenProgramsNV");
|
|
pGlBindProgramARB = (PFNGLBINDPROGRAMARBPROC) IRR_OGL_LOAD_EXTENSION("glBindProgramARB");
|
|
pGlBindProgramNV = (PFNGLBINDPROGRAMNVPROC) IRR_OGL_LOAD_EXTENSION("glBindProgramNV");
|
|
pGlProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC) IRR_OGL_LOAD_EXTENSION("glProgramStringARB");
|
|
pGlLoadProgramNV = (PFNGLLOADPROGRAMNVPROC) IRR_OGL_LOAD_EXTENSION("glLoadProgramNV");
|
|
pGlDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC) IRR_OGL_LOAD_EXTENSION("glDeleteProgramsARB");
|
|
pGlDeleteProgramsNV = (PFNGLDELETEPROGRAMSNVPROC) IRR_OGL_LOAD_EXTENSION("glDeleteProgramsNV");
|
|
pGlProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) IRR_OGL_LOAD_EXTENSION("glProgramLocalParameter4fvARB");
|
|
pGlCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC) IRR_OGL_LOAD_EXTENSION("glCreateShaderObjectARB");
|
|
pGlCreateShader = (PFNGLCREATESHADERPROC) IRR_OGL_LOAD_EXTENSION("glCreateShader");
|
|
pGlShaderSourceARB = (PFNGLSHADERSOURCEARBPROC) IRR_OGL_LOAD_EXTENSION("glShaderSourceARB");
|
|
pGlShaderSource = (PFNGLSHADERSOURCEPROC) IRR_OGL_LOAD_EXTENSION("glShaderSource");
|
|
pGlCompileShaderARB = (PFNGLCOMPILESHADERARBPROC) IRR_OGL_LOAD_EXTENSION("glCompileShaderARB");
|
|
pGlCompileShader = (PFNGLCOMPILESHADERPROC) IRR_OGL_LOAD_EXTENSION("glCompileShader");
|
|
pGlCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC) IRR_OGL_LOAD_EXTENSION("glCreateProgramObjectARB");
|
|
pGlCreateProgram = (PFNGLCREATEPROGRAMPROC) IRR_OGL_LOAD_EXTENSION("glCreateProgram");
|
|
pGlAttachObjectARB = (PFNGLATTACHOBJECTARBPROC) IRR_OGL_LOAD_EXTENSION("glAttachObjectARB");
|
|
pGlAttachShader = (PFNGLATTACHSHADERPROC) IRR_OGL_LOAD_EXTENSION("glAttachShader");
|
|
pGlLinkProgramARB = (PFNGLLINKPROGRAMARBPROC) IRR_OGL_LOAD_EXTENSION("glLinkProgramARB");
|
|
pGlLinkProgram = (PFNGLLINKPROGRAMPROC) IRR_OGL_LOAD_EXTENSION("glLinkProgram");
|
|
pGlUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC) IRR_OGL_LOAD_EXTENSION("glUseProgramObjectARB");
|
|
pGlUseProgram = (PFNGLUSEPROGRAMPROC) IRR_OGL_LOAD_EXTENSION("glUseProgram");
|
|
pGlDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC) IRR_OGL_LOAD_EXTENSION("glDeleteObjectARB");
|
|
pGlDeleteProgram = (PFNGLDELETEPROGRAMPROC) IRR_OGL_LOAD_EXTENSION("glDeleteProgram");
|
|
pGlDeleteShader = (PFNGLDELETESHADERPROC) IRR_OGL_LOAD_EXTENSION("glDeleteShader");
|
|
pGlGetAttachedShaders = (PFNGLGETATTACHEDSHADERSPROC) IRR_OGL_LOAD_EXTENSION("glGetAttachedShaders");
|
|
pGlGetAttachedObjectsARB = (PFNGLGETATTACHEDOBJECTSARBPROC) IRR_OGL_LOAD_EXTENSION("glGetAttachedObjectsARB");
|
|
pGlGetInfoLogARB = (PFNGLGETINFOLOGARBPROC) IRR_OGL_LOAD_EXTENSION("glGetInfoLogARB");
|
|
pGlGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC) IRR_OGL_LOAD_EXTENSION("glGetShaderInfoLog");
|
|
pGlGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC) IRR_OGL_LOAD_EXTENSION("glGetProgramInfoLog");
|
|
pGlGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC) IRR_OGL_LOAD_EXTENSION("glGetObjectParameterivARB");
|
|
pGlGetShaderiv = (PFNGLGETSHADERIVPROC) IRR_OGL_LOAD_EXTENSION("glGetShaderiv");
|
|
pGlGetProgramiv = (PFNGLGETPROGRAMIVPROC) IRR_OGL_LOAD_EXTENSION("glGetProgramiv");
|
|
pGlGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC) IRR_OGL_LOAD_EXTENSION("glGetUniformLocationARB");
|
|
pGlGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC) IRR_OGL_LOAD_EXTENSION("glGetUniformLocation");
|
|
pGlUniform1fvARB = (PFNGLUNIFORM1FVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniform1fvARB");
|
|
pGlUniform2fvARB = (PFNGLUNIFORM2FVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniform2fvARB");
|
|
pGlUniform3fvARB = (PFNGLUNIFORM3FVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniform3fvARB");
|
|
pGlUniform4fvARB = (PFNGLUNIFORM4FVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniform4fvARB");
|
|
pGlUniform1ivARB = (PFNGLUNIFORM1IVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniform1ivARB");
|
|
pGlUniform2ivARB = (PFNGLUNIFORM2IVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniform2ivARB");
|
|
pGlUniform3ivARB = (PFNGLUNIFORM3IVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniform3ivARB");
|
|
pGlUniform4ivARB = (PFNGLUNIFORM4IVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniform4ivARB");
|
|
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniformMatrix2fvARB");
|
|
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniformMatrix3fvARB");
|
|
pGlUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC) IRR_OGL_LOAD_EXTENSION("glUniformMatrix4fvARB");
|
|
pGlGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC) IRR_OGL_LOAD_EXTENSION("glGetActiveUniformARB");
|
|
pGlGetActiveUniform = (PFNGLGETACTIVEUNIFORMPROC) IRR_OGL_LOAD_EXTENSION("glGetActiveUniform");
|
|
|
|
// get point parameter extension
|
|
pGlPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC) IRR_OGL_LOAD_EXTENSION("glPointParameterfARB");
|
|
pGlPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC) IRR_OGL_LOAD_EXTENSION("glPointParameterfvARB");
|
|
|
|
// get stencil extension
|
|
pGlStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC) IRR_OGL_LOAD_EXTENSION("glStencilFuncSeparate");
|
|
pGlStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC) IRR_OGL_LOAD_EXTENSION("glStencilOpSeparate");
|
|
pGlStencilFuncSeparateATI = (PFNGLSTENCILFUNCSEPARATEATIPROC) IRR_OGL_LOAD_EXTENSION("glStencilFuncSeparateATI");
|
|
pGlStencilOpSeparateATI = (PFNGLSTENCILOPSEPARATEATIPROC) IRR_OGL_LOAD_EXTENSION("glStencilOpSeparateATI");
|
|
|
|
// compressed textures
|
|
pGlCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC) IRR_OGL_LOAD_EXTENSION("glCompressedTexImage2D");
|
|
|
|
// ARB FrameBufferObjects
|
|
pGlBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC) IRR_OGL_LOAD_EXTENSION("glBindFramebuffer");
|
|
pGlDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC) IRR_OGL_LOAD_EXTENSION("glDeleteFramebuffers");
|
|
pGlGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC) IRR_OGL_LOAD_EXTENSION("glGenFramebuffers");
|
|
pGlCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC) IRR_OGL_LOAD_EXTENSION("glCheckFramebufferStatus");
|
|
pGlFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC) IRR_OGL_LOAD_EXTENSION("glFramebufferTexture2D");
|
|
pGlBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC) IRR_OGL_LOAD_EXTENSION("glBindRenderbuffer");
|
|
pGlDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC) IRR_OGL_LOAD_EXTENSION("glDeleteRenderbuffers");
|
|
pGlGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC) IRR_OGL_LOAD_EXTENSION("glGenRenderbuffers");
|
|
pGlRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC) IRR_OGL_LOAD_EXTENSION("glRenderbufferStorage");
|
|
pGlFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC) IRR_OGL_LOAD_EXTENSION("glFramebufferRenderbuffer");
|
|
pGlGenerateMipmap = (PFNGLGENERATEMIPMAPPROC) IRR_OGL_LOAD_EXTENSION("glGenerateMipmap");
|
|
|
|
// EXT FrameBufferObjects
|
|
pGlBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC) IRR_OGL_LOAD_EXTENSION("glBindFramebufferEXT");
|
|
pGlDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC) IRR_OGL_LOAD_EXTENSION("glDeleteFramebuffersEXT");
|
|
pGlGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC) IRR_OGL_LOAD_EXTENSION("glGenFramebuffersEXT");
|
|
pGlCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC) IRR_OGL_LOAD_EXTENSION("glCheckFramebufferStatusEXT");
|
|
pGlFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC) IRR_OGL_LOAD_EXTENSION("glFramebufferTexture2DEXT");
|
|
pGlBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC) IRR_OGL_LOAD_EXTENSION("glBindRenderbufferEXT");
|
|
pGlDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC) IRR_OGL_LOAD_EXTENSION("glDeleteRenderbuffersEXT");
|
|
pGlGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC) IRR_OGL_LOAD_EXTENSION("glGenRenderbuffersEXT");
|
|
pGlRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC) IRR_OGL_LOAD_EXTENSION("glRenderbufferStorageEXT");
|
|
pGlFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC) IRR_OGL_LOAD_EXTENSION("glFramebufferRenderbufferEXT");
|
|
pGlGenerateMipmapEXT = (PFNGLGENERATEMIPMAPEXTPROC) IRR_OGL_LOAD_EXTENSION("glGenerateMipmapEXT");
|
|
pGlDrawBuffersARB = (PFNGLDRAWBUFFERSARBPROC) IRR_OGL_LOAD_EXTENSION("glDrawBuffersARB");
|
|
pGlDrawBuffersATI = (PFNGLDRAWBUFFERSATIPROC) IRR_OGL_LOAD_EXTENSION("glDrawBuffersATI");
|
|
|
|
// get vertex buffer extension
|
|
pGlGenBuffersARB = (PFNGLGENBUFFERSARBPROC) IRR_OGL_LOAD_EXTENSION("glGenBuffersARB");
|
|
pGlBindBufferARB = (PFNGLBINDBUFFERARBPROC) IRR_OGL_LOAD_EXTENSION("glBindBufferARB");
|
|
pGlBufferDataARB = (PFNGLBUFFERDATAARBPROC) IRR_OGL_LOAD_EXTENSION("glBufferDataARB");
|
|
pGlDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC) IRR_OGL_LOAD_EXTENSION("glDeleteBuffersARB");
|
|
pGlBufferSubDataARB= (PFNGLBUFFERSUBDATAARBPROC) IRR_OGL_LOAD_EXTENSION("glBufferSubDataARB");
|
|
pGlGetBufferSubDataARB= (PFNGLGETBUFFERSUBDATAARBPROC)IRR_OGL_LOAD_EXTENSION("glGetBufferSubDataARB");
|
|
pGlMapBufferARB= (PFNGLMAPBUFFERARBPROC) IRR_OGL_LOAD_EXTENSION("glMapBufferARB");
|
|
pGlUnmapBufferARB= (PFNGLUNMAPBUFFERARBPROC) IRR_OGL_LOAD_EXTENSION("glUnmapBufferARB");
|
|
pGlIsBufferARB= (PFNGLISBUFFERARBPROC) IRR_OGL_LOAD_EXTENSION("glIsBufferARB");
|
|
pGlGetBufferParameterivARB= (PFNGLGETBUFFERPARAMETERIVARBPROC) IRR_OGL_LOAD_EXTENSION("glGetBufferParameterivARB");
|
|
pGlGetBufferPointervARB= (PFNGLGETBUFFERPOINTERVARBPROC) IRR_OGL_LOAD_EXTENSION("glGetBufferPointervARB");
|
|
pGlProvokingVertexARB= (PFNGLPROVOKINGVERTEXPROC) IRR_OGL_LOAD_EXTENSION("glProvokingVertex");
|
|
pGlProvokingVertexEXT= (PFNGLPROVOKINGVERTEXEXTPROC) IRR_OGL_LOAD_EXTENSION("glProvokingVertexEXT");
|
|
pGlColorMaskIndexedEXT= (PFNGLCOLORMASKINDEXEDEXTPROC) IRR_OGL_LOAD_EXTENSION("glColorMaskIndexedEXT");
|
|
pGlEnableIndexedEXT= (PFNGLENABLEINDEXEDEXTPROC) IRR_OGL_LOAD_EXTENSION("glEnableIndexedEXT");
|
|
pGlDisableIndexedEXT= (PFNGLDISABLEINDEXEDEXTPROC) IRR_OGL_LOAD_EXTENSION("glDisableIndexedEXT");
|
|
pGlBlendFuncIndexedAMD= (PFNGLBLENDFUNCINDEXEDAMDPROC) IRR_OGL_LOAD_EXTENSION("glBlendFuncIndexedAMD");
|
|
pGlBlendFunciARB= (PFNGLBLENDFUNCIPROC) IRR_OGL_LOAD_EXTENSION("glBlendFunciARB");
|
|
pGlBlendEquationIndexedAMD= (PFNGLBLENDEQUATIONINDEXEDAMDPROC) IRR_OGL_LOAD_EXTENSION("glBlendEquationIndexedAMD");
|
|
pGlBlendEquationiARB= (PFNGLBLENDEQUATIONIPROC) IRR_OGL_LOAD_EXTENSION("glBlendEquationiARB");
|
|
pGlProgramParameteriARB= (PFNGLPROGRAMPARAMETERIARBPROC) IRR_OGL_LOAD_EXTENSION("glProgramParameteriARB");
|
|
pGlProgramParameteriEXT= (PFNGLPROGRAMPARAMETERIEXTPROC) IRR_OGL_LOAD_EXTENSION("glProgramParameteriEXT");
|
|
|
|
// occlusion query
|
|
pGlGenQueriesARB = (PFNGLGENQUERIESARBPROC) IRR_OGL_LOAD_EXTENSION("glGenQueriesARB");
|
|
pGlDeleteQueriesARB = (PFNGLDELETEQUERIESARBPROC) IRR_OGL_LOAD_EXTENSION("glDeleteQueriesARB");
|
|
pGlIsQueryARB = (PFNGLISQUERYARBPROC) IRR_OGL_LOAD_EXTENSION("glIsQueryARB");
|
|
pGlBeginQueryARB = (PFNGLBEGINQUERYARBPROC) IRR_OGL_LOAD_EXTENSION("glBeginQueryARB");
|
|
pGlEndQueryARB = (PFNGLENDQUERYARBPROC) IRR_OGL_LOAD_EXTENSION("glEndQueryARB");
|
|
pGlGetQueryivARB = (PFNGLGETQUERYIVARBPROC) IRR_OGL_LOAD_EXTENSION("glGetQueryivARB");
|
|
pGlGetQueryObjectivARB = (PFNGLGETQUERYOBJECTIVARBPROC) IRR_OGL_LOAD_EXTENSION("glGetQueryObjectivARB");
|
|
pGlGetQueryObjectuivARB = (PFNGLGETQUERYOBJECTUIVARBPROC) IRR_OGL_LOAD_EXTENSION("glGetQueryObjectuivARB");
|
|
pGlGenOcclusionQueriesNV = (PFNGLGENOCCLUSIONQUERIESNVPROC) IRR_OGL_LOAD_EXTENSION("glGenOcclusionQueriesNV");
|
|
pGlDeleteOcclusionQueriesNV = (PFNGLDELETEOCCLUSIONQUERIESNVPROC) IRR_OGL_LOAD_EXTENSION("glDeleteOcclusionQueriesNV");
|
|
pGlIsOcclusionQueryNV = (PFNGLISOCCLUSIONQUERYNVPROC) IRR_OGL_LOAD_EXTENSION("glIsOcclusionQueryNV");
|
|
pGlBeginOcclusionQueryNV = (PFNGLBEGINOCCLUSIONQUERYNVPROC) IRR_OGL_LOAD_EXTENSION("glBeginOcclusionQueryNV");
|
|
pGlEndOcclusionQueryNV = (PFNGLENDOCCLUSIONQUERYNVPROC) IRR_OGL_LOAD_EXTENSION("glEndOcclusionQueryNV");
|
|
pGlGetOcclusionQueryivNV = (PFNGLGETOCCLUSIONQUERYIVNVPROC) IRR_OGL_LOAD_EXTENSION("glGetOcclusionQueryivNV");
|
|
pGlGetOcclusionQueryuivNV = (PFNGLGETOCCLUSIONQUERYUIVNVPROC) IRR_OGL_LOAD_EXTENSION("glGetOcclusionQueryuivNV");
|
|
|
|
// blend equation
|
|
pGlBlendEquationEXT = (PFNGLBLENDEQUATIONEXTPROC) IRR_OGL_LOAD_EXTENSION("glBlendEquationEXT");
|
|
pGlBlendEquation = (PFNGLBLENDEQUATIONPROC) IRR_OGL_LOAD_EXTENSION("glBlendEquation");
|
|
|
|
// get vsync extension
|
|
#if defined(WGL_EXT_swap_control) && !defined(_IRR_COMPILE_WITH_SDL_DEVICE_)
|
|
pWglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC) IRR_OGL_LOAD_EXTENSION("wglSwapIntervalEXT");
|
|
#endif
|
|
#if defined(GLX_SGI_swap_control) && !defined(_IRR_COMPILE_WITH_SDL_DEVICE_)
|
|
pGlxSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)IRR_OGL_LOAD_EXTENSION("glXSwapIntervalSGI");
|
|
#endif
|
|
#if defined(GLX_EXT_swap_control) && !defined(_IRR_COMPILE_WITH_SDL_DEVICE_)
|
|
pGlxSwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)IRR_OGL_LOAD_EXTENSION("glXSwapIntervalEXT");
|
|
#endif
|
|
#if defined(GLX_MESA_swap_control) && !defined(_IRR_COMPILE_WITH_SDL_DEVICE_)
|
|
pGlxSwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)IRR_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[IRR_ARB_multitexture])
|
|
{
|
|
#if defined(GL_MAX_TEXTURE_UNITS)
|
|
if (!useCoreContext)
|
|
glGetIntegerv(GL_MAX_TEXTURE_UNITS, &num);
|
|
#elif defined(GL_MAX_TEXTURE_UNITS_ARB)
|
|
glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &num);
|
|
#endif
|
|
MaxSupportedTextures=static_cast<u8>(num);
|
|
}
|
|
#endif
|
|
#if defined(GL_ARB_vertex_shader) || defined(GL_VERSION_2_0)
|
|
if (Version>=200 || FeatureAvailable[IRR_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=core::max_(MaxSupportedTextures,static_cast<u8>(num));
|
|
}
|
|
#endif
|
|
if (!useCoreContext)
|
|
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);
|
|
if (!useCoreContext)
|
|
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);
|
|
}
|
|
#endif
|
|
#if defined(GL_ATI_draw_buffers)
|
|
#ifdef GL_ARB_draw_buffers
|
|
else
|
|
#endif
|
|
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);
|
|
if (!useCoreContext)
|
|
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
|
|
}
|
|
|
|
bool COpenGLExtensionHandler::queryFeature(E_VIDEO_DRIVER_FEATURE feature) const
|
|
{
|
|
switch (feature)
|
|
{
|
|
case EVDF_RENDER_TO_TARGET:
|
|
return true;
|
|
case EVDF_HARDWARE_TL:
|
|
return true; // we cannot tell other things
|
|
case EVDF_MULTITEXTURE:
|
|
return MultiTextureExtension;
|
|
case EVDF_BILINEAR_FILTER:
|
|
return true;
|
|
case EVDF_MIP_MAP:
|
|
return true;
|
|
case EVDF_MIP_MAP_AUTO_UPDATE:
|
|
return FeatureAvailable[IRR_SGIS_generate_mipmap] || FeatureAvailable[IRR_EXT_framebuffer_object] || FeatureAvailable[IRR_ARB_framebuffer_object];
|
|
case EVDF_STENCIL_BUFFER:
|
|
return StencilBuffer;
|
|
case EVDF_VERTEX_SHADER_1_1:
|
|
case EVDF_ARB_VERTEX_PROGRAM_1:
|
|
return FeatureAvailable[IRR_ARB_vertex_program] || FeatureAvailable[IRR_NV_vertex_program1_1];
|
|
case EVDF_PIXEL_SHADER_1_1:
|
|
case EVDF_PIXEL_SHADER_1_2:
|
|
case EVDF_ARB_FRAGMENT_PROGRAM_1:
|
|
return FeatureAvailable[IRR_ARB_fragment_program] || FeatureAvailable[IRR_NV_fragment_program];
|
|
case EVDF_PIXEL_SHADER_2_0:
|
|
case EVDF_VERTEX_SHADER_2_0:
|
|
case EVDF_ARB_GLSL:
|
|
return (FeatureAvailable[IRR_ARB_shading_language_100]||Version>=200);
|
|
case EVDF_TEXTURE_NSQUARE:
|
|
return true; // non-square is always supported
|
|
case EVDF_TEXTURE_NPOT:
|
|
// Some ATI cards seem to have only SW support in OpenGL 2.0
|
|
// drivers if the extension is not exposed, so we skip this
|
|
// extra test for now!
|
|
// return (FeatureAvailable[IRR_ARB_texture_non_power_of_two]||Version>=200);
|
|
return (FeatureAvailable[IRR_ARB_texture_non_power_of_two]);
|
|
case EVDF_FRAMEBUFFER_OBJECT:
|
|
return FeatureAvailable[IRR_EXT_framebuffer_object] || FeatureAvailable[IRR_ARB_framebuffer_object];
|
|
case EVDF_VERTEX_BUFFER_OBJECT:
|
|
return FeatureAvailable[IRR_ARB_vertex_buffer_object];
|
|
case EVDF_COLOR_MASK:
|
|
return true;
|
|
case EVDF_ALPHA_TO_COVERAGE:
|
|
return FeatureAvailable[IRR_ARB_multisample];
|
|
case EVDF_GEOMETRY_SHADER:
|
|
return FeatureAvailable[IRR_ARB_geometry_shader4] || FeatureAvailable[IRR_EXT_geometry_shader4] || FeatureAvailable[IRR_NV_geometry_program4] || FeatureAvailable[IRR_NV_geometry_shader4];
|
|
case EVDF_MULTIPLE_RENDER_TARGETS:
|
|
return FeatureAvailable[IRR_ARB_draw_buffers] || FeatureAvailable[IRR_ATI_draw_buffers];
|
|
case EVDF_MRT_BLEND:
|
|
case EVDF_MRT_COLOR_MASK:
|
|
return FeatureAvailable[IRR_EXT_draw_buffers2];
|
|
case EVDF_MRT_BLEND_FUNC:
|
|
return FeatureAvailable[IRR_ARB_draw_buffers_blend] || FeatureAvailable[IRR_AMD_draw_buffers_blend];
|
|
case EVDF_OCCLUSION_QUERY:
|
|
return FeatureAvailable[IRR_ARB_occlusion_query] && OcclusionQuerySupport;
|
|
case EVDF_POLYGON_OFFSET:
|
|
// both features supported with OpenGL 1.1
|
|
return Version>=110;
|
|
case EVDF_BLEND_OPERATIONS:
|
|
return (Version>=120) || FeatureAvailable[IRR_EXT_blend_minmax] ||
|
|
FeatureAvailable[IRR_EXT_blend_subtract] || FeatureAvailable[IRR_EXT_blend_logic_op];
|
|
case EVDF_TEXTURE_MATRIX:
|
|
return true;
|
|
default:
|
|
return false;
|
|
};
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|