mirror of
https://github.com/minetest/irrlicht.git
synced 2024-12-27 11:10:31 +01:00
67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
// Copyright (C) 2015 Patryk Nadrowski
|
|
// Copyright (C) 2009-2010 Amundis
|
|
// 2017 modified by Michael Zeilfelder (unifying extension handlers)
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in Irrlicht.h
|
|
|
|
#include "ExtensionHandler.h"
|
|
|
|
#include "irrString.h"
|
|
#include "SMaterial.h"
|
|
#include "fast_atof.h"
|
|
#include <mt_opengl.h>
|
|
|
|
namespace irr
|
|
{
|
|
namespace video
|
|
{
|
|
void COpenGL3ExtensionHandler::initExtensions()
|
|
{
|
|
GLint major, minor;
|
|
glGetIntegerv(GL_MAJOR_VERSION, &major);
|
|
glGetIntegerv(GL_MINOR_VERSION, &minor);
|
|
Version = 100 * major + 10 * minor;
|
|
|
|
GLint ext_count = 0;
|
|
GL.GetIntegerv(GL_NUM_EXTENSIONS, &ext_count);
|
|
for (int k = 0; k < ext_count; k++) {
|
|
auto ext_name = (char *)GL.GetStringi(GL_EXTENSIONS, k);
|
|
for (size_t j=0; j<IRR_OGLES_Feature_Count; ++j) {
|
|
if (!strcmp(getFeatureString(j), ext_name)) {
|
|
FeatureAvailable[j] = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
GLint val=0;
|
|
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &val);
|
|
Feature.MaxTextureUnits = static_cast<u8>(val);
|
|
|
|
#ifdef GL_EXT_texture_filter_anisotropic
|
|
if (FeatureAvailable[IRR_GL_EXT_texture_filter_anisotropic])
|
|
{
|
|
glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &val);
|
|
MaxAnisotropy = static_cast<u8>(val);
|
|
}
|
|
#endif
|
|
#ifdef GL_MAX_ELEMENTS_INDICES
|
|
glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &val);
|
|
MaxIndices=val;
|
|
#endif
|
|
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &val);
|
|
MaxTextureSize=static_cast<u32>(val);
|
|
#ifdef GL_EXT_texture_lod_bias
|
|
if (FeatureAvailable[IRR_GL_EXT_texture_lod_bias])
|
|
glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &MaxTextureLODBias);
|
|
#endif
|
|
glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, DimAliasedLine);
|
|
glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, DimAliasedPoint);
|
|
|
|
Feature.MaxTextureUnits = core::min_(Feature.MaxTextureUnits, static_cast<u8>(MATERIAL_MAX_TEXTURES));
|
|
Feature.ColorAttachment = 1;
|
|
}
|
|
|
|
} // end namespace video
|
|
} // end namespace irr
|