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irrlicht/source/Irrlicht/COpenGLExtensionHandler.cpp
Desour f5c6d3e945 Reformat the code, using: 
find -type f |  # list all regular files
  grep -E '\.(h|cpp|mm)$' |  # filter for source files
  grep -v '/mt_' |  # filter out generated files
  grep -v '/vendor/' | # and vendored GL
  grep -v '/test/image_loader_test.cpp' |  # and this file (has giant literals arrays)
  xargs -n 1 -P $(nproc) clang-format -i  # reformat everything

Co-authored-by: numzero <numzer0@yandex.ru>
2024-03-21 22:08:26 +01:00

627 lines
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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "COpenGLExtensionHandler.h"
#ifdef _IRR_COMPILE_WITH_OPENGL_
#include "irrString.h"
#include "SMaterial.h"
#include "fast_atof.h"
#include "IContextManager.h"
namespace irr
{
namespace video
{
bool COpenGLExtensionHandler::needsDSAFramebufferHack = true;
COpenGLExtensionHandler::COpenGLExtensionHandler() :
StencilBuffer(false), TextureCompressionExtension(false), MaxLights(1),
MaxAnisotropy(1), MaxUserClipPlanes(0), MaxAuxBuffers(0), MaxIndices(65535),
MaxTextureSize(1), MaxGeometryVerticesOut(0),
MaxTextureLODBias(0.f), Version(0), ShaderLanguageVersion(0),
OcclusionQuerySupport(false), IsAtiRadeonX(false), pGlActiveTexture(0), pGlActiveTextureARB(0), pGlClientActiveTextureARB(0),
pGlGenProgramsARB(0), pGlGenProgramsNV(0),
pGlBindProgramARB(0), pGlBindProgramNV(0),
pGlDeleteProgramsARB(0), pGlDeleteProgramsNV(0),
pGlProgramStringARB(0), pGlLoadProgramNV(0),
pGlProgramLocalParameter4fvARB(0),
pGlCreateShaderObjectARB(0), pGlShaderSourceARB(0),
pGlCompileShaderARB(0), pGlCreateProgramObjectARB(0), pGlAttachObjectARB(0),
pGlLinkProgramARB(0), pGlUseProgramObjectARB(0), pGlDeleteObjectARB(0),
pGlCreateProgram(0), pGlUseProgram(0),
pGlDeleteProgram(0), pGlDeleteShader(0),
pGlGetAttachedObjectsARB(0), pGlGetAttachedShaders(0),
pGlCreateShader(0), pGlShaderSource(0), pGlCompileShader(0),
pGlAttachShader(0), pGlLinkProgram(0),
pGlGetInfoLogARB(0), pGlGetShaderInfoLog(0), pGlGetProgramInfoLog(0),
pGlGetObjectParameterivARB(0), pGlGetShaderiv(0), pGlGetProgramiv(0),
pGlGetUniformLocationARB(0), pGlGetUniformLocation(0),
pGlUniform1fvARB(0), pGlUniform2fvARB(0), pGlUniform3fvARB(0), pGlUniform4fvARB(0),
pGlUniform1ivARB(0), pGlUniform2ivARB(0), pGlUniform3ivARB(0), pGlUniform4ivARB(0),
pGlUniform1uiv(0), pGlUniform2uiv(0), pGlUniform3uiv(0), pGlUniform4uiv(0),
pGlUniformMatrix2fvARB(0), pGlUniformMatrix2x3fv(0), pGlUniformMatrix2x4fv(0),
pGlUniformMatrix3x2fv(0), pGlUniformMatrix3fvARB(0), pGlUniformMatrix3x4fv(0),
pGlUniformMatrix4x2fv(0), pGlUniformMatrix4x3fv(0), pGlUniformMatrix4fvARB(0),
pGlGetActiveUniformARB(0), pGlGetActiveUniform(0),
pGlPointParameterfARB(0), pGlPointParameterfvARB(0),
pGlStencilFuncSeparate(0), pGlStencilOpSeparate(0),
pGlStencilFuncSeparateATI(0), pGlStencilOpSeparateATI(0),
pGlCompressedTexImage2D(0), pGlCompressedTexSubImage2D(0),
// ARB framebuffer object
pGlBindFramebuffer(0), pGlDeleteFramebuffers(0), pGlGenFramebuffers(0),
pGlCheckFramebufferStatus(0), pGlFramebufferTexture2D(0),
pGlBindRenderbuffer(0), pGlDeleteRenderbuffers(0), pGlGenRenderbuffers(0),
pGlRenderbufferStorage(0), pGlFramebufferRenderbuffer(0), pGlGenerateMipmap(0),
// EXT framebuffer object
pGlBindFramebufferEXT(0), pGlDeleteFramebuffersEXT(0), pGlGenFramebuffersEXT(0),
pGlCheckFramebufferStatusEXT(0), pGlFramebufferTexture2DEXT(0),
pGlBindRenderbufferEXT(0), pGlDeleteRenderbuffersEXT(0), pGlGenRenderbuffersEXT(0),
pGlRenderbufferStorageEXT(0), pGlFramebufferRenderbufferEXT(0), pGlGenerateMipmapEXT(0),
pGlActiveStencilFaceEXT(0),
// MRTs
pGlDrawBuffersARB(0), pGlDrawBuffersATI(0),
pGlGenBuffersARB(0), pGlBindBufferARB(0), pGlBufferDataARB(0), pGlDeleteBuffersARB(0),
pGlBufferSubDataARB(0), pGlGetBufferSubDataARB(0), pGlMapBufferARB(0), pGlUnmapBufferARB(0),
pGlIsBufferARB(0), pGlGetBufferParameterivARB(0), pGlGetBufferPointervARB(0),
pGlProvokingVertexARB(0), pGlProvokingVertexEXT(0),
pGlProgramParameteriARB(0), pGlProgramParameteriEXT(0),
pGlGenQueriesARB(0), pGlDeleteQueriesARB(0), pGlIsQueryARB(0),
pGlBeginQueryARB(0), pGlEndQueryARB(0), pGlGetQueryivARB(0),
pGlGetQueryObjectivARB(0), pGlGetQueryObjectuivARB(0),
pGlGenOcclusionQueriesNV(0), pGlDeleteOcclusionQueriesNV(0),
pGlIsOcclusionQueryNV(0), pGlBeginOcclusionQueryNV(0),
pGlEndOcclusionQueryNV(0), pGlGetOcclusionQueryivNV(0),
pGlGetOcclusionQueryuivNV(0),
// Blend
pGlBlendFuncSeparateEXT(0), pGlBlendFuncSeparate(0),
pGlBlendEquationEXT(0), pGlBlendEquation(0), pGlBlendEquationSeparateEXT(0), pGlBlendEquationSeparate(0),
// Indexed
pGlEnableIndexedEXT(0), pGlDisableIndexedEXT(0),
pGlColorMaskIndexedEXT(0),
pGlBlendFuncIndexedAMD(0), pGlBlendFunciARB(0), pGlBlendFuncSeparateIndexedAMD(0), pGlBlendFuncSeparateiARB(0),
pGlBlendEquationIndexedAMD(0), pGlBlendEquationiARB(0), pGlBlendEquationSeparateIndexedAMD(0), pGlBlendEquationSeparateiARB(0),
// DSA
pGlTextureStorage2D(0), pGlTextureStorage3D(0), pGlTextureSubImage2D(0), pGlGetTextureImage(0), pGlNamedFramebufferTexture(0),
pGlTextureParameteri(0), pGlTextureParameterf(0), pGlTextureParameteriv(0), pGlTextureParameterfv(0),
pGlCreateTextures(0), pGlCreateFramebuffers(0), pGlBindTextures(0), pGlGenerateTextureMipmap(0),
// DSA with EXT or functions to simulate it
pGlTextureStorage2DEXT(0), pGlTexStorage2D(0), pGlTextureStorage3DEXT(0), pGlTexStorage3D(0), pGlTextureSubImage2DEXT(0), pGlGetTextureImageEXT(0),
pGlNamedFramebufferTextureEXT(0), pGlFramebufferTexture(0), pGlGenerateTextureMipmapEXT(0)
#if defined(GLX_SGI_swap_control)
,
pGlxSwapIntervalSGI(0)
#endif
#if defined(GLX_EXT_swap_control)
,
pGlxSwapIntervalEXT(0)
#endif
#if defined(WGL_EXT_swap_control)
,
pWglSwapIntervalEXT(0)
#endif
#if defined(GLX_MESA_swap_control)
,
pGlxSwapIntervalMESA(0)
#endif
{
for (u32 i = 0; i < IRR_OpenGL_Feature_Count; ++i)
FeatureAvailable[i] = false;
DimAliasedLine[0] = 1.f;
DimAliasedLine[1] = 1.f;
DimAliasedPoint[0] = 1.f;
DimAliasedPoint[1] = 1.f;
DimSmoothedLine[0] = 1.f;
DimSmoothedLine[1] = 1.f;
DimSmoothedPoint[0] = 1.f;
DimSmoothedPoint[1] = 1.f;
}
void COpenGLExtensionHandler::dump(ELOG_LEVEL logLevel) const
{
for (u32 i = 0; i < IRR_OpenGL_Feature_Count; ++i)
os::Printer::log(OpenGLFeatureStrings[i], FeatureAvailable[i] ? " true" : " false", logLevel);
}
void COpenGLExtensionHandler::initExtensions(video::IContextManager *cmgr, 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;
}
TextureCompressionExtension = FeatureAvailable[IRR_ARB_texture_compression];
StencilBuffer = stencilBuffer;
const char *renderer = (const char *)glGetString(GL_RENDERER);
if (renderer) {
IsAtiRadeonX = (strncmp(renderer, "ATI RADEON X", 12) == 0) || (strncmp(renderer, "ATI MOBILITY RADEON X", 21) == 0);
}
#define IRR_OGL_LOAD_EXTENSION(x) cmgr->getProcAddress(x)
// 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");
pGlUniform1uiv = (PFNGLUNIFORM1UIVPROC)IRR_OGL_LOAD_EXTENSION("glUniform1uiv");
pGlUniform2uiv = (PFNGLUNIFORM2UIVPROC)IRR_OGL_LOAD_EXTENSION("glUniform2uiv");
pGlUniform3uiv = (PFNGLUNIFORM3UIVPROC)IRR_OGL_LOAD_EXTENSION("glUniform3uiv");
pGlUniform4uiv = (PFNGLUNIFORM4UIVPROC)IRR_OGL_LOAD_EXTENSION("glUniform4uiv");
pGlUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix2fvARB");
pGlUniformMatrix2x3fv = (PFNGLUNIFORMMATRIX2X3FVPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix2x3fv");
pGlUniformMatrix2x4fv = (PFNGLUNIFORMMATRIX2X4FVPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix2x4fv");
pGlUniformMatrix3x2fv = (PFNGLUNIFORMMATRIX3X2FVPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix3x2fv");
pGlUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix3fvARB");
pGlUniformMatrix3x4fv = (PFNGLUNIFORMMATRIX3X4FVPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix3x4fv");
pGlUniformMatrix4x2fv = (PFNGLUNIFORMMATRIX4X2FVPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix4x2fv");
pGlUniformMatrix4x3fv = (PFNGLUNIFORMMATRIX4X3FVPROC)IRR_OGL_LOAD_EXTENSION("glUniformMatrix4x3fv");
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");
pGlCompressedTexSubImage2D = (PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC)IRR_OGL_LOAD_EXTENSION("glCompressedTexSubImage2D");
// 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");
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
pGlBlendFuncSeparateEXT = (PFNGLBLENDFUNCSEPARATEEXTPROC)IRR_OGL_LOAD_EXTENSION("glBlendFuncSeparateEXT");
pGlBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)IRR_OGL_LOAD_EXTENSION("glBlendFuncSeparate");
pGlBlendEquationEXT = (PFNGLBLENDEQUATIONEXTPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquationEXT");
pGlBlendEquation = (PFNGLBLENDEQUATIONPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquation");
pGlBlendEquationSeparateEXT = (PFNGLBLENDEQUATIONSEPARATEEXTPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquationSeparateEXT");
pGlBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquationSeparate");
// indexed
pGlEnableIndexedEXT = (PFNGLENABLEINDEXEDEXTPROC)IRR_OGL_LOAD_EXTENSION("glEnableIndexedEXT");
pGlDisableIndexedEXT = (PFNGLDISABLEINDEXEDEXTPROC)IRR_OGL_LOAD_EXTENSION("glDisableIndexedEXT");
pGlColorMaskIndexedEXT = (PFNGLCOLORMASKINDEXEDEXTPROC)IRR_OGL_LOAD_EXTENSION("glColorMaskIndexedEXT");
pGlBlendFuncIndexedAMD = (PFNGLBLENDFUNCINDEXEDAMDPROC)IRR_OGL_LOAD_EXTENSION("glBlendFuncIndexedAMD");
pGlBlendFunciARB = (PFNGLBLENDFUNCIPROC)IRR_OGL_LOAD_EXTENSION("glBlendFunciARB");
pGlBlendFuncSeparateIndexedAMD = (PFNGLBLENDFUNCSEPARATEINDEXEDAMDPROC)IRR_OGL_LOAD_EXTENSION("glBlendFuncSeparateIndexedAMD");
pGlBlendFuncSeparateiARB = (PFNGLBLENDFUNCSEPARATEIPROC)IRR_OGL_LOAD_EXTENSION("glBlendFuncSeparateiARB");
pGlBlendEquationIndexedAMD = (PFNGLBLENDEQUATIONINDEXEDAMDPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquationIndexedAMD");
pGlBlendEquationiARB = (PFNGLBLENDEQUATIONIPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquationiARB");
pGlBlendEquationSeparateIndexedAMD = (PFNGLBLENDEQUATIONSEPARATEINDEXEDAMDPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquationSeparateIndexedAMD");
pGlBlendEquationSeparateiARB = (PFNGLBLENDEQUATIONSEPARATEIPROC)IRR_OGL_LOAD_EXTENSION("glBlendEquationSeparateiARB");
pGlTextureStorage2D = (PFNGLTEXTURESTORAGE2DPROC)IRR_OGL_LOAD_EXTENSION("glTextureStorage2D");
pGlTextureStorage3D = (PFNGLTEXTURESTORAGE3DPROC)IRR_OGL_LOAD_EXTENSION("glTextureStorage3D");
pGlTextureSubImage2D = (PFNGLTEXTURESUBIMAGE2DPROC)IRR_OGL_LOAD_EXTENSION("glTextureSubImage2D");
pGlGetTextureImage = (PFNGLGETTEXTUREIMAGEPROC)IRR_OGL_LOAD_EXTENSION("glGetTextureImage");
pGlNamedFramebufferTexture = (PFNGLNAMEDFRAMEBUFFERTEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glNamedFramebufferTexture");
pGlTextureParameteri = (PFNGLTEXTUREPARAMETERIPROC)IRR_OGL_LOAD_EXTENSION("glTextureParameteri");
pGlTextureParameterf = (PFNGLTEXTUREPARAMETERFPROC)IRR_OGL_LOAD_EXTENSION("glTextureParameterf");
pGlTextureParameteriv = (PFNGLTEXTUREPARAMETERIVPROC)IRR_OGL_LOAD_EXTENSION("glTextureParameteriv");
pGlTextureParameterfv = (PFNGLTEXTUREPARAMETERFVPROC)IRR_OGL_LOAD_EXTENSION("glTextureParameterfv");
pGlCreateTextures = (PFNGLCREATETEXTURESPROC)IRR_OGL_LOAD_EXTENSION("glCreateTextures");
pGlCreateFramebuffers = (PFNGLCREATEFRAMEBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glCreateFramebuffers");
pGlBindTextures = (PFNGLBINDTEXTURESPROC)IRR_OGL_LOAD_EXTENSION("glBindTextures");
pGlGenerateTextureMipmap = (PFNGLGENERATETEXTUREMIPMAPPROC)IRR_OGL_LOAD_EXTENSION("glGenerateTextureMipmap");
//==============================
pGlTextureStorage2DEXT = (PFNGLTEXTURESTORAGE2DEXTPROC)IRR_OGL_LOAD_EXTENSION("glTextureStorage2DEXT");
pGlTexStorage2D = (PFNGLTEXSTORAGE2DPROC)IRR_OGL_LOAD_EXTENSION("glTexStorage2D");
pGlTextureStorage3DEXT = (PFNGLTEXTURESTORAGE3DEXTPROC)IRR_OGL_LOAD_EXTENSION("glTextureStorage3DEXT");
pGlTexStorage3D = (PFNGLTEXSTORAGE3DPROC)IRR_OGL_LOAD_EXTENSION("glTexStorage3D");
pGlTextureSubImage2DEXT = (PFNGLTEXTURESUBIMAGE2DEXTPROC)IRR_OGL_LOAD_EXTENSION("glTextureSubImage2DEXT");
pGlGetTextureImageEXT = (PFNGLGETTEXTUREIMAGEEXTPROC)IRR_OGL_LOAD_EXTENSION("glGetTextureImageEXT");
pGlNamedFramebufferTextureEXT = (PFNGLNAMEDFRAMEBUFFERTEXTUREEXTPROC)IRR_OGL_LOAD_EXTENSION("glNamedFramebufferTextureEXT");
pGlFramebufferTexture = (PFNGLFRAMEBUFFERTEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glFramebufferTexture");
pGlActiveTexture = (PFNGLACTIVETEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glActiveTexture");
pGlGenerateTextureMipmapEXT = (PFNGLGENERATETEXTUREMIPMAPEXTPROC)IRR_OGL_LOAD_EXTENSION("glGenerateTextureMipmapEXT");
// 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
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)
glGetIntegerv(GL_MAX_TEXTURE_UNITS, &num);
#elif defined(GL_MAX_TEXTURE_UNITS_ARB)
glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &num);
#endif
Feature.MaxTextureUnits = static_cast<u8>(num); // MULTITEXTURING (fixed function pipeline texture units)
}
#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
Feature.MaxTextureUnits = core::max_(Feature.MaxTextureUnits, 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);
Feature.MultipleRenderTarget = 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);
Feature.MultipleRenderTarget = static_cast<u8>(num);
}
#endif
#ifdef GL_ARB_framebuffer_object
if (FeatureAvailable[IRR_ARB_framebuffer_object]) {
glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &num);
Feature.ColorAttachment = static_cast<u8>(num);
}
#endif
#if defined(GL_EXT_framebuffer_object)
#ifdef GL_ARB_framebuffer_object
else
#endif
if (FeatureAvailable[IRR_EXT_framebuffer_object]) {
glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, &num);
Feature.ColorAttachment = 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
if (!pGlActiveTextureARB || !pGlClientActiveTextureARB) {
Feature.MaxTextureUnits = 1;
os::Printer::log("Failed to load OpenGL's multitexture extension, proceeding without.", ELL_WARNING);
} else
Feature.MaxTextureUnits = core::min_(Feature.MaxTextureUnits, static_cast<u8>(MATERIAL_MAX_TEXTURES));
#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;
Feature.BlendOperation = (Version >= 104) ||
FeatureAvailable[IRR_EXT_blend_minmax] ||
FeatureAvailable[IRR_EXT_blend_subtract] ||
FeatureAvailable[IRR_EXT_blend_logic_op];
#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
if (queryFeature(EVDF_TEXTURE_CUBEMAP_SEAMLESS))
glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
#endif
}
const COpenGLCoreFeature &COpenGLExtensionHandler::getFeature() const
{
return Feature;
}
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 Feature.MaxTextureUnits > 1;
case EVDF_BILINEAR_FILTER:
return true;
case EVDF_MIP_MAP:
return true;
case EVDF_MIP_MAP_AUTO_UPDATE:
return !IsAtiRadeonX && (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 >= 101;
case EVDF_BLEND_OPERATIONS:
return Feature.BlendOperation;
case EVDF_BLEND_SEPARATE:
return (Version >= 104) || FeatureAvailable[IRR_EXT_blend_func_separate];
case EVDF_TEXTURE_MATRIX:
return true;
case EVDF_TEXTURE_CUBEMAP:
return (Version >= 103) || FeatureAvailable[IRR_ARB_texture_cube_map] || FeatureAvailable[IRR_EXT_texture_cube_map];
case EVDF_TEXTURE_CUBEMAP_SEAMLESS:
return FeatureAvailable[IRR_ARB_seamless_cube_map];
case EVDF_DEPTH_CLAMP:
return FeatureAvailable[IRR_NV_depth_clamp] || FeatureAvailable[IRR_ARB_depth_clamp];
default:
return false;
};
}
}
}
#endif
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