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#pragma once
#include <EGL/egl.h>
#include <GLES2/gl2.h>
namespace android
{
class ConfigComparator
{
public:
ConfigComparator(EGLDisplay display)
: m_display(display)
{}
int operator()(EGLConfig const & l, EGLConfig const & r) const
{
return configWeight(l) - configWeight(r);
}
int configWeight(EGLConfig const & config) const
{
int val = -1;
eglGetConfigAttrib(m_display, config, EGL_CONFIG_CAVEAT, &val);
switch (val)
{
case EGL_NONE:
return 0;
case EGL_SLOW_CONFIG:
return 1;
case EGL_NON_CONFORMANT_CONFIG:
return 2;
default:
return 0;
}
}
private:
EGLDisplay m_display;
};
} // namespace android
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