Cppcheck report - Godot - branch: master, commit: 216b3302f318c32a5dcf250293d90e47e712e8e9 (2024-12-22): scene/resources/multimesh.cpp

/**************************************************************************/
/*  multimesh.cpp                                                         */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* Permission is hereby granted, free of charge, to any person obtaining  */
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/* distribute, sublicense, and/or sell copies of the Software, and to     */
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/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/**************************************************************************/

#include "multimesh.h"

#include "servers/rendering_server.h"

#ifndef DISABLE_DEPRECATED
// Kept for compatibility from 3.x to 4.0.

void MultiMesh::_set_transform_array(const Vector<Vector3> &p_array) {
	if (transform_format != TRANSFORM_3D) {
		return;
	}

	const Vector<Vector3> &xforms = p_array;
	int len = xforms.size();
	ERR_FAIL_COND((len / 4) != instance_count);
	if (len == 0) {
		return;
	}

	const Vector3 *r = xforms.ptr();

	for (int i = 0; i < len / 4; i++) {
		Transform3D t;
		t.basis[0] = r[i * 4 + 0];
		t.basis[1] = r[i * 4 + 1];
		t.basis[2] = r[i * 4 + 2];
		t.origin = r[i * 4 + 3];

		set_instance_transform(i, t);
	}
}

Vector<Vector3> MultiMesh::_get_transform_array() const {
	if (transform_format != TRANSFORM_3D) {
		return Vector<Vector3>();
	}

	if (instance_count == 0) {
		return Vector<Vector3>();
	}

	Vector<Vector3> xforms;
	xforms.resize(instance_count * 4);

	Vector3 *w = xforms.ptrw();

	for (int i = 0; i < instance_count; i++) {
		Transform3D t = get_instance_transform(i);
		w[i * 4 + 0] = t.basis[0];
		w[i * 4 + 1] = t.basis[1];
		w[i * 4 + 2] = t.basis[2];
		w[i * 4 + 3] = t.origin;
	}

	return xforms;
}

void MultiMesh::_set_transform_2d_array(const Vector<Vector2> &p_array) {
	if (transform_format != TRANSFORM_2D) {
		return;
	}

	const Vector<Vector2> &xforms = p_array;
	int len = xforms.size();
	ERR_FAIL_COND((len / 3) != instance_count);
	if (len == 0) {
		return;
	}

	const Vector2 *r = xforms.ptr();

	for (int i = 0; i < len / 3; i++) {
		Transform2D t;
		t.columns[0] = r[i * 3 + 0];
		t.columns[1] = r[i * 3 + 1];
		t.columns[2] = r[i * 3 + 2];

		set_instance_transform_2d(i, t);
	}
}

Vector<Vector2> MultiMesh::_get_transform_2d_array() const {
	if (transform_format != TRANSFORM_2D) {
		return Vector<Vector2>();
	}

	if (instance_count == 0) {
		return Vector<Vector2>();
	}

	Vector<Vector2> xforms;
	xforms.resize(instance_count * 3);

	Vector2 *w = xforms.ptrw();

	for (int i = 0; i < instance_count; i++) {
		Transform2D t = get_instance_transform_2d(i);
		w[i * 3 + 0] = t.columns[0];
		w[i * 3 + 1] = t.columns[1];
		w[i * 3 + 2] = t.columns[2];
	}

	return xforms;
}

void MultiMesh::_set_color_array(const Vector<Color> &p_array) {
	const Vector<Color> &colors = p_array;
	int len = colors.size();
	if (len == 0) {
		return;
	}
	ERR_FAIL_COND(len != instance_count);

	const Color *r = colors.ptr();

	for (int i = 0; i < len; i++) {
		set_instance_color(i, r[i]);
	}
}

Vector<Color> MultiMesh::_get_color_array() const {
	if (instance_count == 0 || !use_colors) {
		return Vector<Color>();
	}

	Vector<Color> colors;
	colors.resize(instance_count);

	for (int i = 0; i < instance_count; i++) {
		colors.set(i, get_instance_color(i));
	}

	return colors;
}

void MultiMesh::_set_custom_data_array(const Vector<Color> &p_array) {
	const Vector<Color> &custom_datas = p_array;
	int len = custom_datas.size();
	if (len == 0) {
		return;
	}
	ERR_FAIL_COND(len != instance_count);

	const Color *r = custom_datas.ptr();

	for (int i = 0; i < len; i++) {
		set_instance_custom_data(i, r[i]);
	}
}

Vector<Color> MultiMesh::_get_custom_data_array() const {
	if (instance_count == 0 || !use_custom_data) {
		return Vector<Color>();
	}

	Vector<Color> custom_datas;
	custom_datas.resize(instance_count);

	for (int i = 0; i < instance_count; i++) {
		custom_datas.set(i, get_instance_custom_data(i));
	}

	return custom_datas;
}
#endif // DISABLE_DEPRECATED

void MultiMesh::set_buffer(const Vector<float> &p_buffer) {
	if (instance_count == 0) {
		return;
	}
	RS::get_singleton()->multimesh_set_buffer(multimesh, p_buffer);
}

Vector<float> MultiMesh::get_buffer() const {
	return RS::get_singleton()->multimesh_get_buffer(multimesh);
}

void MultiMesh::set_buffer_interpolated(const Vector<float> &p_buffer_curr, const Vector<float> &p_buffer_prev) {
	RS::get_singleton()->multimesh_set_buffer_interpolated(multimesh, p_buffer_curr, p_buffer_prev);
}

void MultiMesh::set_mesh(const Ref<Mesh> &p_mesh) {
	mesh = p_mesh;
	if (!mesh.is_null()) {
		RenderingServer::get_singleton()->multimesh_set_mesh(multimesh, mesh->get_rid());
	} else {
		RenderingServer::get_singleton()->multimesh_set_mesh(multimesh, RID());
	}
}

Ref<Mesh> MultiMesh::get_mesh() const {
	return mesh;
}

void MultiMesh::set_instance_count(int p_count) {
	ERR_FAIL_COND(p_count < 0);
	RenderingServer::get_singleton()->multimesh_allocate_data(multimesh, p_count, RS::MultimeshTransformFormat(transform_format), use_colors, use_custom_data);
	instance_count = p_count;
}

int MultiMesh::get_instance_count() const {
	return instance_count;
}

void MultiMesh::set_visible_instance_count(int p_count) {
	ERR_FAIL_COND(p_count < -1);
	ERR_FAIL_COND(p_count > instance_count);
	RenderingServer::get_singleton()->multimesh_set_visible_instances(multimesh, p_count);
	visible_instance_count = p_count;
}

int MultiMesh::get_visible_instance_count() const {
	return visible_instance_count;
}

void MultiMesh::set_physics_interpolation_quality(PhysicsInterpolationQuality p_quality) {
	_physics_interpolation_quality = p_quality;
	RenderingServer::get_singleton()->multimesh_set_physics_interpolation_quality(multimesh, (RS::MultimeshPhysicsInterpolationQuality)p_quality);
}

void MultiMesh::set_instance_transform(int p_instance, const Transform3D &p_transform) {
	RenderingServer::get_singleton()->multimesh_instance_set_transform(multimesh, p_instance, p_transform);
}

void MultiMesh::set_instance_transform_2d(int p_instance, const Transform2D &p_transform) {
	RenderingServer::get_singleton()->multimesh_instance_set_transform_2d(multimesh, p_instance, p_transform);
	emit_changed();
}

Transform3D MultiMesh::get_instance_transform(int p_instance) const {
	return RenderingServer::get_singleton()->multimesh_instance_get_transform(multimesh, p_instance);
}

Transform2D MultiMesh::get_instance_transform_2d(int p_instance) const {
	return RenderingServer::get_singleton()->multimesh_instance_get_transform_2d(multimesh, p_instance);
}

void MultiMesh::set_instance_color(int p_instance, const Color &p_color) {
	RenderingServer::get_singleton()->multimesh_instance_set_color(multimesh, p_instance, p_color);
}

Color MultiMesh::get_instance_color(int p_instance) const {
	return RenderingServer::get_singleton()->multimesh_instance_get_color(multimesh, p_instance);
}

void MultiMesh::set_instance_custom_data(int p_instance, const Color &p_custom_data) {
	RenderingServer::get_singleton()->multimesh_instance_set_custom_data(multimesh, p_instance, p_custom_data);
}

Color MultiMesh::get_instance_custom_data(int p_instance) const {
	return RenderingServer::get_singleton()->multimesh_instance_get_custom_data(multimesh, p_instance);
}

void MultiMesh::reset_instance_physics_interpolation(int p_instance) {
	RenderingServer::get_singleton()->multimesh_instance_reset_physics_interpolation(multimesh, p_instance);
}

void MultiMesh::set_physics_interpolated(bool p_interpolated) {
	RenderingServer::get_singleton()->multimesh_set_physics_interpolated(multimesh, p_interpolated);
}

void MultiMesh::set_custom_aabb(const AABB &p_custom) {
	custom_aabb = p_custom;
	RS::get_singleton()->multimesh_set_custom_aabb(multimesh, custom_aabb);
	emit_changed();
}

AABB MultiMesh::get_custom_aabb() const {
	return custom_aabb;
}

AABB MultiMesh::get_aabb() const {
	return RenderingServer::get_singleton()->multimesh_get_aabb(multimesh);
}

RID MultiMesh::get_rid() const {
	return multimesh;
}

void MultiMesh::set_use_colors(bool p_enable) {
	ERR_FAIL_COND(instance_count > 0);
	use_colors = p_enable;
}

bool MultiMesh::is_using_colors() const {
	return use_colors;
}

void MultiMesh::set_use_custom_data(bool p_enable) {
	ERR_FAIL_COND(instance_count > 0);
	use_custom_data = p_enable;
}

bool MultiMesh::is_using_custom_data() const {
	return use_custom_data;
}

void MultiMesh::set_transform_format(TransformFormat p_transform_format) {
	ERR_FAIL_COND(instance_count > 0);
	transform_format = p_transform_format;
}

MultiMesh::TransformFormat MultiMesh::get_transform_format() const {
	return transform_format;
}

void MultiMesh::_bind_methods() {
	ClassDB::bind_method(D_METHOD("set_mesh", "mesh"), &MultiMesh::set_mesh);
	ClassDB::bind_method(D_METHOD("get_mesh"), &MultiMesh::get_mesh);
	ClassDB::bind_method(D_METHOD("set_use_colors", "enable"), &MultiMesh::set_use_colors);
	ClassDB::bind_method(D_METHOD("is_using_colors"), &MultiMesh::is_using_colors);
	ClassDB::bind_method(D_METHOD("set_use_custom_data", "enable"), &MultiMesh::set_use_custom_data);
	ClassDB::bind_method(D_METHOD("is_using_custom_data"), &MultiMesh::is_using_custom_data);
	ClassDB::bind_method(D_METHOD("set_transform_format", "format"), &MultiMesh::set_transform_format);
	ClassDB::bind_method(D_METHOD("get_transform_format"), &MultiMesh::get_transform_format);

	ClassDB::bind_method(D_METHOD("set_instance_count", "count"), &MultiMesh::set_instance_count);
	ClassDB::bind_method(D_METHOD("get_instance_count"), &MultiMesh::get_instance_count);
	ClassDB::bind_method(D_METHOD("set_visible_instance_count", "count"), &MultiMesh::set_visible_instance_count);
	ClassDB::bind_method(D_METHOD("get_visible_instance_count"), &MultiMesh::get_visible_instance_count);
	ClassDB::bind_method(D_METHOD("set_physics_interpolation_quality", "quality"), &MultiMesh::set_physics_interpolation_quality);
	ClassDB::bind_method(D_METHOD("get_physics_interpolation_quality"), &MultiMesh::get_physics_interpolation_quality);
	ClassDB::bind_method(D_METHOD("set_instance_transform", "instance", "transform"), &MultiMesh::set_instance_transform);
	ClassDB::bind_method(D_METHOD("set_instance_transform_2d", "instance", "transform"), &MultiMesh::set_instance_transform_2d);
	ClassDB::bind_method(D_METHOD("get_instance_transform", "instance"), &MultiMesh::get_instance_transform);
	ClassDB::bind_method(D_METHOD("get_instance_transform_2d", "instance"), &MultiMesh::get_instance_transform_2d);
	ClassDB::bind_method(D_METHOD("set_instance_color", "instance", "color"), &MultiMesh::set_instance_color);
	ClassDB::bind_method(D_METHOD("get_instance_color", "instance"), &MultiMesh::get_instance_color);
	ClassDB::bind_method(D_METHOD("set_instance_custom_data", "instance", "custom_data"), &MultiMesh::set_instance_custom_data);
	ClassDB::bind_method(D_METHOD("get_instance_custom_data", "instance"), &MultiMesh::get_instance_custom_data);
	ClassDB::bind_method(D_METHOD("reset_instance_physics_interpolation", "instance"), &MultiMesh::reset_instance_physics_interpolation);
	ClassDB::bind_method(D_METHOD("set_custom_aabb", "aabb"), &MultiMesh::set_custom_aabb);
	ClassDB::bind_method(D_METHOD("get_custom_aabb"), &MultiMesh::get_custom_aabb);
	ClassDB::bind_method(D_METHOD("get_aabb"), &MultiMesh::get_aabb);

	ClassDB::bind_method(D_METHOD("get_buffer"), &MultiMesh::get_buffer);
	ClassDB::bind_method(D_METHOD("set_buffer", "buffer"), &MultiMesh::set_buffer);

	ClassDB::bind_method(D_METHOD("set_buffer_interpolated", "buffer_curr", "buffer_prev"), &MultiMesh::set_buffer_interpolated);

	ADD_PROPERTY(PropertyInfo(Variant::INT, "transform_format", PROPERTY_HINT_ENUM, "2D,3D"), "set_transform_format", "get_transform_format");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_colors"), "set_use_colors", "is_using_colors");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_custom_data"), "set_use_custom_data", "is_using_custom_data");
	ADD_PROPERTY(PropertyInfo(Variant::AABB, "custom_aabb", PROPERTY_HINT_NONE, "suffix:m"), "set_custom_aabb", "get_custom_aabb");
	ADD_PROPERTY(PropertyInfo(Variant::INT, "instance_count", PROPERTY_HINT_RANGE, "0,16384,1,or_greater"), "set_instance_count", "get_instance_count");
	ADD_PROPERTY(PropertyInfo(Variant::INT, "visible_instance_count", PROPERTY_HINT_RANGE, "-1,16384,1,or_greater"), "set_visible_instance_count", "get_visible_instance_count");
	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh"), "set_mesh", "get_mesh");
	ADD_PROPERTY(PropertyInfo(Variant::PACKED_FLOAT32_ARRAY, "buffer", PROPERTY_HINT_NONE), "set_buffer", "get_buffer");

#ifndef DISABLE_DEPRECATED
	// Kept for compatibility from 3.x to 4.0.
	ClassDB::bind_method(D_METHOD("_set_transform_array", "array"), &MultiMesh::_set_transform_array);
	ClassDB::bind_method(D_METHOD("_get_transform_array"), &MultiMesh::_get_transform_array);
	ClassDB::bind_method(D_METHOD("_set_transform_2d_array", "array"), &MultiMesh::_set_transform_2d_array);
	ClassDB::bind_method(D_METHOD("_get_transform_2d_array"), &MultiMesh::_get_transform_2d_array);
	ClassDB::bind_method(D_METHOD("_set_color_array", "array"), &MultiMesh::_set_color_array);
	ClassDB::bind_method(D_METHOD("_get_color_array"), &MultiMesh::_get_color_array);
	ClassDB::bind_method(D_METHOD("_set_custom_data_array", "array"), &MultiMesh::_set_custom_data_array);
	ClassDB::bind_method(D_METHOD("_get_custom_data_array"), &MultiMesh::_get_custom_data_array);

	ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR3_ARRAY, "transform_array", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "_set_transform_array", "_get_transform_array");
	ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "transform_2d_array", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "_set_transform_2d_array", "_get_transform_2d_array");
	ADD_PROPERTY(PropertyInfo(Variant::PACKED_COLOR_ARRAY, "color_array", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "_set_color_array", "_get_color_array");
	ADD_PROPERTY(PropertyInfo(Variant::PACKED_COLOR_ARRAY, "custom_data_array", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "_set_custom_data_array", "_get_custom_data_array");
#endif

	ADD_GROUP("Physics Interpolation", "physics_interpolation");
	ADD_PROPERTY(PropertyInfo(Variant::INT, "physics_interpolation_quality", PROPERTY_HINT_ENUM, "Fast,High"), "set_physics_interpolation_quality", "get_physics_interpolation_quality");

	BIND_ENUM_CONSTANT(TRANSFORM_2D);
	BIND_ENUM_CONSTANT(TRANSFORM_3D);

	BIND_ENUM_CONSTANT(INTERP_QUALITY_FAST);
	BIND_ENUM_CONSTANT(INTERP_QUALITY_HIGH);
}

MultiMesh::MultiMesh() {
	multimesh = RenderingServer::get_singleton()->multimesh_create();
<--- Variable 'multimesh' is assigned in constructor body. Consider performing initialization in initialization list. [+]
When an object of a class is created, the constructors of all member variables are called consecutively in the order the variables are declared, even if you don't explicitly write them to the initialization list. You could avoid assigning 'multimesh' a value by passing the value to the constructor in the initialization list.
}

MultiMesh::~MultiMesh() {
	ERR_FAIL_NULL(RenderingServer::get_singleton());
	RenderingServer::get_singleton()->free(multimesh);
}