static void affineTransformCompose(AffineTransform& m, const double sr[9])
{
m.setA(sr[3]);
m.setB(sr[4]);
m.setC(sr[5]);
m.setD(sr[6]);
m.setE(sr[7]);
m.setF(sr[8]);
m.rotate(rad2deg(sr[2]));
m.scale(sr[0], sr[1]);
}
static void dAttrSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
{
INC_STATS("DOM.SVGMatrix.d._set");
V8SVGPODTypeWrapper<AffineTransform>* wrapper = V8SVGPODTypeWrapper<AffineTransform>::toNative(info.Holder());
AffineTransform impInstance = *wrapper;
AffineTransform* imp = &impInstance;
double v = static_cast<double>(value->NumberValue());
imp->setD(v);
wrapper->commitChange(*imp, V8Proxy::svgContext(wrapper));
return;
}
static inline void normalizeTransform(AffineTransform& transform)
{
// Obtain consistent numerical results for the AffineTransform on both 32/64bit platforms.
// Tested with SnowLeopard on Core Duo vs. Core 2 Duo.
static const float s_floatEpsilon = std::numeric_limits<float>::epsilon();
if (fabs(transform.a() - 1) <= s_floatEpsilon)
transform.setA(1);
else if (fabs(transform.a() + 1) <= s_floatEpsilon)
transform.setA(-1);
if (fabs(transform.d() - 1) <= s_floatEpsilon)
transform.setD(1);
else if (fabs(transform.d() + 1) <= s_floatEpsilon)
transform.setD(-1);
if (fabs(transform.e()) <= s_floatEpsilon)
transform.setE(0);
if (fabs(transform.f()) <= s_floatEpsilon)
transform.setF(0);
}
