static const gl_param_t* get_gl_param()
{
if (!QOpenGLContext::currentContext()) {
qWarning("%s: current context is null", __FUNCTION__);
return gl_param_compat;
}
static gl_param_t* gp = 0;
if (gp)
return gp;
bool has_16 = false;
// [4] is always available
if (test_gl_param(gl_param_desktop[4], &has_16)) {
if (has_16 && depth16BitTexture() == 16)
gp = (gl_param_t*)gl_param_desktop;
else
gp = (gl_param_t*)gl_param_desktop_fallback;
has_16_tex = has_16;
if (!useDeprecatedFormats()) {
qDebug("using gl_param_desktop%s", gp == gl_param_desktop? "" : "_fallback");
return gp;
}
} else if (test_gl_param(gl_param_es3[4], &has_16)) {
gp = (gl_param_t*)gl_param_es3;
has_16_tex = has_16;
if (!useDeprecatedFormats()) {
qDebug("using gl_param_es3");
return gp;
}
}
qDebug("fallback to gl_param_compat");
gp = (gl_param_t*)gl_param_compat;
has_16_tex = false;
return gp;
}
static const gl_param_t* get_gl_param()
{
if (!QOpenGLContext::currentContext()) {
qWarning("%s: current context is null", __FUNCTION__);
return gl_param_compat;
}
static gl_param_t* gp = 0;
if (gp)
return gp;
bool has_16 = false;
// [4] is always available
if (test_gl_param(gl_param_desktop[4], &has_16)) {
if (has_16 && depth16BitTexture() == 16)
gp = (gl_param_t*)gl_param_desktop;
else
gp = (gl_param_t*)gl_param_desktop_fallback;
has_16_tex = has_16;
if (!useDeprecatedFormats()) {
qDebug("using gl_param_desktop%s", gp == gl_param_desktop? "" : "_fallback");
return gp;
}
} else if (test_gl_param(gl_param_es3[4], &has_16)) { //3.0 will fail because no glGetTexLevelParameteriv
gp = (gl_param_t*)gl_param_es3;
has_16_tex = has_16;
if (!useDeprecatedFormats()) {
qDebug("using gl_param_es3");
return gp;
}
} else if (isOpenGLES()) {
if (QOpenGLContext::currentContext()->format().majorVersion() > 2)
gp = (gl_param_t*)gl_param_es3; //for 3.0
else if (hasRG())
gp = (gl_param_t*)gl_param_es2rg;
has_16_tex = has_16;
if (gp && !useDeprecatedFormats()) {
qDebug("using gl_param_%s", gp == gl_param_es3 ? "es3" : "es2rg");
return gp;
}
}
qDebug("fallback to gl_param_compat");
gp = (gl_param_t*)gl_param_compat;
has_16_tex = false;
return gp;
}
