static void
gum_v8_probe_args_on_get_nth (uint32_t index,
const PropertyCallbackInfo<Value> & info)
{
Handle<Object> instance = info.This ();
GumV8CallProbe * self = static_cast<GumV8CallProbe *> (
instance->GetAlignedPointerFromInternalField (0));
GumCallSite * site = static_cast<GumCallSite *> (
instance->GetAlignedPointerFromInternalField (1));
gsize value;
gsize * stack_argument = static_cast<gsize *> (site->stack_data);
#if defined (HAVE_I386) && GLIB_SIZEOF_VOID_P == 8
switch (index)
{
# if GUM_NATIVE_ABI_IS_UNIX
case 0: value = site->cpu_context->rdi; break;
case 1: value = site->cpu_context->rsi; break;
case 2: value = site->cpu_context->rdx; break;
case 3: value = site->cpu_context->rcx; break;
case 4: value = site->cpu_context->r8; break;
case 5: value = site->cpu_context->r9; break;
default:
value = stack_argument[index - 6];
break;
# else
case 0: value = site->cpu_context->rcx; break;
case 1: value = site->cpu_context->rdx; break;
case 2: value = site->cpu_context->r8; break;
case 3: value = site->cpu_context->r9; break;
default:
value = stack_argument[index];
break;
# endif
}
#else
value = stack_argument[index];
#endif
info.GetReturnValue ().Set (
_gum_v8_native_pointer_new (GSIZE_TO_POINTER (value), self->parent->core));
}
v8::Handle<v8::Value> v8Sprite::RenderTo(const v8::Arguments &args) {
HandleScope scope;
v8Sprite *spriteWrapper = ObjectWrap::Unwrap<v8Sprite>(args.Holder());
if (NULL == spriteWrapper) {
return ThrowException(v8::Exception::ReferenceError(String::NewSymbol(
"Sprite::renderTo(): NULL Holder."
)));
}
// This is kinda strange, but I can't think of a simpler way to handle
// dynamically accepting both Canvas and Window in a secure (e.g. not
// depending on (mutable) JavaScript state to determine which to use) way.
// We'll manually unwrap the internal pointer, and use RTTI to determine
// which class of instance we have been passed.
Handle<Object> instanceHandle = args[0]->ToObject();
if (instanceHandle.IsEmpty() || 0 == instanceHandle->InternalFieldCount()) {
return ThrowException(v8::Exception::ReferenceError(String::NewSymbol(
"Sprite::render(): NULL destination."
)));
}
ObjectWrap *instance = static_cast<ObjectWrap *>(
instanceHandle->GetAlignedPointerFromInternalField(0)
);
v8Canvas *destinationCanvas = dynamic_cast<v8Canvas *>(instance);
v8Window *destinationWindow = dynamic_cast<v8Window *>(instance);
if (destinationCanvas) {
spriteWrapper->sprite->renderTo(destinationCanvas->wrappedCanvas());
}
else {
spriteWrapper->sprite->renderTo(destinationWindow->wrappedWindow());
}
return v8::Undefined();
}