Variant: Added 64-bit packed arrays, renamed Variant::REAL to FLOAT.

- Renames PackedIntArray to PackedInt32Array.
- Renames PackedFloatArray to PackedFloat32Array.
- Adds PackedInt64Array and PackedFloat64Array.
- Renames Variant::REAL to Variant::FLOAT for consistency.

Packed arrays are for storing large amount of data and creating stuff like
meshes, buffers. textures, etc. Forcing them to be 64 is a huge waste of
memory. That said, many users requested the ability to have 64 bits packed
arrays for their games, so this is just an optional added type.

For Variant, the float datatype is always 64 bits, and exposed as `float`.

We still have `real_t` which is the datatype that can change from 32 to 64
bits depending on a compile flag (not entirely working right now, but that's
the idea). It affects math related datatypes and code only.

Neither Variant nor PackedArray make use of real_t, which is only intended
for math precision, so the term is removed from there to keep only float.

5 files changed, 47 insertions, 45 deletions

diff --git a/modules/mono/csharp_script.cpp b/modules/mono/csharp_script.cpp
index 2b3b6aa98a..5c1c098e3e 100644
--- a/modules/mono/csharp_script.cpp
+++ b/modules/mono/csharp_script.cpp
@@ -411,7 +411,7 @@ static String variant_type_to_managed_name(const String &p_var_type_name) {
 	if (p_var_type_name == Variant::get_type_name(Variant::OBJECT))
 		return "Godot.Object";
 
-	if (p_var_type_name == Variant::get_type_name(Variant::REAL)) {
+	if (p_var_type_name == Variant::get_type_name(Variant::FLOAT)) {
 #ifdef REAL_T_IS_DOUBLE
 		return "double";
 #else
@@ -430,9 +430,9 @@ static String variant_type_to_managed_name(const String &p_var_type_name) {
 
 	if (p_var_type_name == Variant::get_type_name(Variant::PACKED_BYTE_ARRAY))
 		return "byte[]";
-	if (p_var_type_name == Variant::get_type_name(Variant::PACKED_INT_ARRAY))
+	if (p_var_type_name == Variant::get_type_name(Variant::PACKED_INT32_ARRAY))
 		return "int[]";
-	if (p_var_type_name == Variant::get_type_name(Variant::PACKED_REAL_ARRAY)) {
+	if (p_var_type_name == Variant::get_type_name(Variant::PACKED_FLOAT32_ARRAY)) {
 #ifdef REAL_T_IS_DOUBLE
 		return "double[]";
 #else
diff --git a/modules/mono/editor/bindings_generator.cpp b/modules/mono/editor/bindings_generator.cpp
index 10595b4fcc..908c72c591 100644
--- a/modules/mono/editor/bindings_generator.cpp
+++ b/modules/mono/editor/bindings_generator.cpp
@@ -505,9 +505,9 @@ String BindingsGenerator::bbcode_to_xml(const String &p_bbcode, const TypeInterf
 				xml_output.append("</c>");
 			} else if (tag == "PackedByteArray") {
 				xml_output.append("<see cref=\"byte\"/>");
-			} else if (tag == "PackedIntArray") {
+			} else if (tag == "PackedInt32Array") {
 				xml_output.append("<see cref=\"int\"/>");
-			} else if (tag == "PackedRealArray") {
+			} else if (tag == "PackedFloat32Array") {
 #ifdef REAL_T_IS_DOUBLE
 				xml_output.append("<see cref=\"double\"/>");
 #else
@@ -2383,7 +2383,7 @@ bool BindingsGenerator::_populate_object_type_interfaces() {
 			} else {
 				if (return_info.type == Variant::INT) {
 					imethod.return_type.cname = _get_int_type_name_from_meta(m ? m->get_argument_meta(-1) : GodotTypeInfo::METADATA_NONE);
-				} else if (return_info.type == Variant::REAL) {
+				} else if (return_info.type == Variant::FLOAT) {
 					imethod.return_type.cname = _get_float_type_name_from_meta(m ? m->get_argument_meta(-1) : GodotTypeInfo::METADATA_NONE);
 				} else {
 					imethod.return_type.cname = Variant::get_type_name(return_info.type);
@@ -2410,7 +2410,7 @@ bool BindingsGenerator::_populate_object_type_interfaces() {
 				} else {
 					if (arginfo.type == Variant::INT) {
 						iarg.type.cname = _get_int_type_name_from_meta(m ? m->get_argument_meta(i) : GodotTypeInfo::METADATA_NONE);
-					} else if (arginfo.type == Variant::REAL) {
+					} else if (arginfo.type == Variant::FLOAT) {
 						iarg.type.cname = _get_float_type_name_from_meta(m ? m->get_argument_meta(i) : GodotTypeInfo::METADATA_NONE);
 					} else {
 						iarg.type.cname = Variant::get_type_name(arginfo.type);
@@ -2581,7 +2581,7 @@ bool BindingsGenerator::_arg_default_value_from_variant(const Variant &p_val, Ar
 				r_iarg.default_argument = "(%s)" + r_iarg.default_argument;
 			}
 			break;
-		case Variant::REAL:
+		case Variant::FLOAT:
 #ifndef REAL_T_IS_DOUBLE
 			r_iarg.default_argument += "f";
 #endif
@@ -2629,8 +2629,10 @@ bool BindingsGenerator::_arg_default_value_from_variant(const Variant &p_val, Ar
 			break;
 		case Variant::ARRAY:
 		case Variant::PACKED_BYTE_ARRAY:
-		case Variant::PACKED_INT_ARRAY:
-		case Variant::PACKED_REAL_ARRAY:
+		case Variant::PACKED_INT32_ARRAY:
+		case Variant::PACKED_FLOAT32_ARRAY:
+		case Variant::PACKED_INT64_ARRAY:
+		case Variant::PACKED_FLOAT64_ARRAY:
 		case Variant::PACKED_STRING_ARRAY:
 		case Variant::PACKED_VECTOR2_ARRAY:
 		case Variant::PACKED_VECTOR3_ARRAY:
@@ -2914,13 +2916,13 @@ void BindingsGenerator::_populate_builtin_type_interfaces() {
 
 #define INSERT_ARRAY(m_type, m_proxy_t) INSERT_ARRAY_FULL(m_type, m_type, m_proxy_t)
 
-	INSERT_ARRAY(PackedIntArray, int);
+	INSERT_ARRAY(PackedInt32Array, int);
 	INSERT_ARRAY_FULL(PackedByteArray, PackedByteArray, byte);
 
 #ifdef REAL_T_IS_DOUBLE
-	INSERT_ARRAY(PackedRealArray, double);
+	INSERT_ARRAY(PackedFloat32Array, double);
 #else
-	INSERT_ARRAY(PackedRealArray, float);
+	INSERT_ARRAY(PackedFloat32Array, float);
 #endif
 
 	INSERT_ARRAY(PackedStringArray, string);
diff --git a/modules/mono/mono_gd/gd_mono_field.cpp b/modules/mono/mono_gd/gd_mono_field.cpp
index 21d78483ee..03b56c9949 100644
--- a/modules/mono/mono_gd/gd_mono_field.cpp
+++ b/modules/mono/mono_gd/gd_mono_field.cpp
@@ -252,12 +252,12 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 			}
 
 			if (array_type->eklass == CACHED_CLASS_RAW(int32_t)) {
-				SET_FROM_ARRAY(PackedIntArray);
+				SET_FROM_ARRAY(PackedInt32Array);
 				break;
 			}
 
 			if (array_type->eklass == REAL_T_MONOCLASS) {
-				SET_FROM_ARRAY(PackedRealArray);
+				SET_FROM_ARRAY(PackedFloat32Array);
 				break;
 			}
 
@@ -370,7 +370,7 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 					int32_t val = p_value.operator signed int();
 					mono_field_set_value(p_object, mono_field, &val);
 				} break;
-				case Variant::REAL: {
+				case Variant::FLOAT: {
 #ifdef REAL_T_IS_DOUBLE
 					double val = p_value.operator double();
 					mono_field_set_value(p_object, mono_field, &val);
@@ -437,11 +437,11 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 				case Variant::PACKED_BYTE_ARRAY: {
 					SET_FROM_ARRAY(PackedByteArray);
 				} break;
-				case Variant::PACKED_INT_ARRAY: {
-					SET_FROM_ARRAY(PackedIntArray);
+				case Variant::PACKED_INT32_ARRAY: {
+					SET_FROM_ARRAY(PackedInt32Array);
 				} break;
-				case Variant::PACKED_REAL_ARRAY: {
-					SET_FROM_ARRAY(PackedRealArray);
+				case Variant::PACKED_FLOAT32_ARRAY: {
+					SET_FROM_ARRAY(PackedFloat32Array);
 				} break;
 				case Variant::PACKED_STRING_ARRAY: {
 					SET_FROM_ARRAY(PackedStringArray);
diff --git a/modules/mono/mono_gd/gd_mono_marshal.cpp b/modules/mono/mono_gd/gd_mono_marshal.cpp
index 63890f6066..695be64d6e 100644
--- a/modules/mono/mono_gd/gd_mono_marshal.cpp
+++ b/modules/mono/mono_gd/gd_mono_marshal.cpp
@@ -60,9 +60,9 @@ Variant::Type managed_to_variant_type(const ManagedType &p_type) {
 			return Variant::INT;
 
 		case MONO_TYPE_R4:
-			return Variant::REAL;
+			return Variant::FLOAT;
 		case MONO_TYPE_R8:
-			return Variant::REAL;
+			return Variant::FLOAT;
 
 		case MONO_TYPE_STRING: {
 			return Variant::STRING;
@@ -116,10 +116,10 @@ Variant::Type managed_to_variant_type(const ManagedType &p_type) {
 				return Variant::PACKED_BYTE_ARRAY;
 
 			if (array_type->eklass == CACHED_CLASS_RAW(int32_t))
-				return Variant::PACKED_INT_ARRAY;
+				return Variant::PACKED_INT32_ARRAY;
 
 			if (array_type->eklass == REAL_T_MONOCLASS)
-				return Variant::PACKED_REAL_ARRAY;
+				return Variant::PACKED_FLOAT32_ARRAY;
 
 			if (array_type->eklass == CACHED_CLASS_RAW(String))
 				return Variant::PACKED_STRING_ARRAY;
@@ -494,10 +494,10 @@ MonoObject *variant_to_mono_object(const Variant *p_var, const ManagedType &p_ty
 				return (MonoObject *)PackedByteArray_to_mono_array(p_var->operator PackedByteArray());
 
 			if (array_type->eklass == CACHED_CLASS_RAW(int32_t))
-				return (MonoObject *)PackedIntArray_to_mono_array(p_var->operator PackedIntArray());
+				return (MonoObject *)PackedInt32Array_to_mono_array(p_var->operator PackedInt32Array());
 
 			if (array_type->eklass == REAL_T_MONOCLASS)
-				return (MonoObject *)PackedRealArray_to_mono_array(p_var->operator PackedRealArray());
+				return (MonoObject *)PackedFloat32Array_to_mono_array(p_var->operator PackedFloat32Array());
 
 			if (array_type->eklass == CACHED_CLASS_RAW(String))
 				return (MonoObject *)PackedStringArray_to_mono_array(p_var->operator PackedStringArray());
@@ -577,7 +577,7 @@ MonoObject *variant_to_mono_object(const Variant *p_var, const ManagedType &p_ty
 					int32_t val = p_var->operator signed int();
 					return BOX_INT32(val);
 				}
-				case Variant::REAL: {
+				case Variant::FLOAT: {
 #ifdef REAL_T_IS_DOUBLE
 					double val = p_var->operator double();
 					return BOX_DOUBLE(val);
@@ -640,10 +640,10 @@ MonoObject *variant_to_mono_object(const Variant *p_var, const ManagedType &p_ty
 					return GDMonoUtils::create_managed_from(p_var->operator Array(), CACHED_CLASS(Array));
 				case Variant::PACKED_BYTE_ARRAY:
 					return (MonoObject *)PackedByteArray_to_mono_array(p_var->operator PackedByteArray());
-				case Variant::PACKED_INT_ARRAY:
-					return (MonoObject *)PackedIntArray_to_mono_array(p_var->operator PackedIntArray());
-				case Variant::PACKED_REAL_ARRAY:
-					return (MonoObject *)PackedRealArray_to_mono_array(p_var->operator PackedRealArray());
+				case Variant::PACKED_INT32_ARRAY:
+					return (MonoObject *)PackedInt32Array_to_mono_array(p_var->operator PackedInt32Array());
+				case Variant::PACKED_FLOAT32_ARRAY:
+					return (MonoObject *)PackedFloat32Array_to_mono_array(p_var->operator PackedFloat32Array());
 				case Variant::PACKED_STRING_ARRAY:
 					return (MonoObject *)PackedStringArray_to_mono_array(p_var->operator PackedStringArray());
 				case Variant::PACKED_VECTOR2_ARRAY:
@@ -788,10 +788,10 @@ Variant mono_object_to_variant_impl(MonoObject *p_obj, const ManagedType &p_type
 				return mono_array_to_PackedByteArray((MonoArray *)p_obj);
 
 			if (array_type->eklass == CACHED_CLASS_RAW(int32_t))
-				return mono_array_to_PackedIntArray((MonoArray *)p_obj);
+				return mono_array_to_PackedInt32Array((MonoArray *)p_obj);
 
 			if (array_type->eklass == REAL_T_MONOCLASS)
-				return mono_array_to_PackedRealArray((MonoArray *)p_obj);
+				return mono_array_to_PackedFloat32Array((MonoArray *)p_obj);
 
 			if (array_type->eklass == CACHED_CLASS_RAW(String))
 				return mono_array_to_PackedStringArray((MonoArray *)p_obj);
@@ -987,7 +987,7 @@ Array mono_array_to_Array(MonoArray *p_array) {
 
 // TODO: Use memcpy where possible
 
-MonoArray *PackedIntArray_to_mono_array(const PackedIntArray &p_array) {
+MonoArray *PackedInt32Array_to_mono_array(const PackedInt32Array &p_array) {
 	const int *r = p_array.ptr();
 
 	MonoArray *ret = mono_array_new(mono_domain_get(), CACHED_CLASS_RAW(int32_t), p_array.size());
@@ -999,8 +999,8 @@ MonoArray *PackedIntArray_to_mono_array(const PackedIntArray &p_array) {
 	return ret;
 }
 
-PackedIntArray mono_array_to_PackedIntArray(MonoArray *p_array) {
-	PackedIntArray ret;
+PackedInt32Array mono_array_to_PackedInt32Array(MonoArray *p_array) {
+	PackedInt32Array ret;
 	if (!p_array)
 		return ret;
 	int length = mono_array_length(p_array);
@@ -1041,7 +1041,7 @@ PackedByteArray mono_array_to_PackedByteArray(MonoArray *p_array) {
 	return ret;
 }
 
-MonoArray *PackedRealArray_to_mono_array(const PackedRealArray &p_array) {
+MonoArray *PackedFloat32Array_to_mono_array(const PackedFloat32Array &p_array) {
 	const real_t *r = p_array.ptr();
 
 	MonoArray *ret = mono_array_new(mono_domain_get(), REAL_T_MONOCLASS, p_array.size());
@@ -1053,8 +1053,8 @@ MonoArray *PackedRealArray_to_mono_array(const PackedRealArray &p_array) {
 	return ret;
 }
 
-PackedRealArray mono_array_to_PackedRealArray(MonoArray *p_array) {
-	PackedRealArray ret;
+PackedFloat32Array mono_array_to_PackedFloat32Array(MonoArray *p_array) {
+	PackedFloat32Array ret;
 	if (!p_array)
 		return ret;
 	int length = mono_array_length(p_array);
diff --git a/modules/mono/mono_gd/gd_mono_marshal.h b/modules/mono/mono_gd/gd_mono_marshal.h
index d3527109ff..5db59522ce 100644
--- a/modules/mono/mono_gd/gd_mono_marshal.h
+++ b/modules/mono/mono_gd/gd_mono_marshal.h
@@ -127,20 +127,20 @@ String mono_object_to_variant_string(MonoObject *p_obj, MonoException **r_exc);
 MonoArray *Array_to_mono_array(const Array &p_array);
 Array mono_array_to_Array(MonoArray *p_array);
 
-// PackedIntArray
+// PackedInt32Array
 
-MonoArray *PackedIntArray_to_mono_array(const PackedIntArray &p_array);
-PackedIntArray mono_array_to_PackedIntArray(MonoArray *p_array);
+MonoArray *PackedInt32Array_to_mono_array(const PackedInt32Array &p_array);
+PackedInt32Array mono_array_to_PackedInt32Array(MonoArray *p_array);
 
 // PackedByteArray
 
 MonoArray *PackedByteArray_to_mono_array(const PackedByteArray &p_array);
 PackedByteArray mono_array_to_PackedByteArray(MonoArray *p_array);
 
-// PackedRealArray
+// PackedFloat32Array
 
-MonoArray *PackedRealArray_to_mono_array(const PackedRealArray &p_array);
-PackedRealArray mono_array_to_PackedRealArray(MonoArray *p_array);
+MonoArray *PackedFloat32Array_to_mono_array(const PackedFloat32Array &p_array);
+PackedFloat32Array mono_array_to_PackedFloat32Array(MonoArray *p_array);
 
 // PackedStringArray