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phpglfw_math.c
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phpglfw_math.c
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/**
* PHP-glfw
*
* Extension: GL Math
*
* Copyright (c) 2018-2024 Mario Döring
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* 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. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "phpglfw_math.h"
#include "phpglfw_arginfo.h"
#include "php.h"
#include "Zend/zend_smart_str.h"
#include "ext/standard/info.h"
#include "ext/standard/php_var.h"
#include "zend_smart_str_public.h"
#if defined(DBL_MANT_DIG) && defined(DBL_MIN_EXP) && !defined(ZEND_DOUBLE_MAX_LENGTH)
#define ZEND_DOUBLE_MAX_LENGTH (3 + DBL_MANT_DIG - DBL_MIN_EXP)
#elif !defined(ZEND_DOUBLE_MAX_LENGTH)
#define ZEND_DOUBLE_MAX_LENGTH 1080
#endif
// becase the method is missing in some builds.. ???
void ZEND_FASTCALL glfw_smart_str_append_double(
smart_str *str, double num, int precision, bool zero_fraction) {
char buf[ZEND_DOUBLE_MAX_LENGTH];
#if PHP_API_VERSION <= 20200930
sprintf(buf, "%.4f", num);
#else
/* Model snprintf precision behavior. */
zend_gcvt(num, precision ? precision : 1, '.', 'E', buf);
#endif
smart_str_appends(str, buf);
if (zero_fraction && zend_finite(num) && !strchr(buf, '.')) {
smart_str_appendl(str, ".0", 2);
}
}
zend_class_entry *phpglfw_glm_ce;
zend_class_entry *phpglfw_math_vec2_ce;
zend_class_entry *phpglfw_math_vec3_ce;
zend_class_entry *phpglfw_math_vec4_ce;
zend_class_entry *phpglfw_math_quat_ce;
zend_class_entry *phpglfw_math_mat4_ce;
zend_class_entry *phpglfw_get_math_vec2_ce() {
return phpglfw_math_vec2_ce;
}
zend_class_entry *phpglfw_get_math_vec3_ce() {
return phpglfw_math_vec3_ce;
}
zend_class_entry *phpglfw_get_math_vec4_ce() {
return phpglfw_math_vec4_ce;
}
zend_class_entry *phpglfw_get_math_quat_ce() {
return phpglfw_math_quat_ce;
}
zend_class_entry *phpglfw_get_math_mat4_ce() {
return phpglfw_math_mat4_ce;
}
/**
* GL\Math\Vec2
*
* ----------------------------------------------------------------------------
*/
static zend_object_handlers phpglfw_math_vec2_handlers;
/**
* Creation (GL\Math\Vec2)
*/
zend_object *phpglfw_math_vec2_create_handler(zend_class_entry *class_type)
{
size_t block_len = sizeof(phpglfw_math_vec2_object) + zend_object_properties_size(class_type);
phpglfw_math_vec2_object *intern = emalloc(block_len);
memset(intern, 0, block_len);
for(int i=0; i<2; i++) {
intern->data[i] = 0.0f;
}
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
intern->std.handlers = &phpglfw_math_vec2_handlers;
return &intern->std;
}
static HashTable *phpglfw_math_vec2_debug_info_handler(zend_object *object, int *is_temp)
{
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(object);
zval zv;
HashTable *ht;
ht = zend_new_array(2);
*is_temp = 1;
ZVAL_DOUBLE(&zv, obj_ptr->data[0]);
zend_hash_str_update(ht, "x", sizeof("x") - 1, &zv);
ZVAL_DOUBLE(&zv, obj_ptr->data[1]);
zend_hash_str_update(ht, "y", sizeof("y") - 1, &zv);
return ht;
}
zval *phpglfw_math_vec2_array_get_handler(zend_object *object, zval *offset, int type, zval *rv)
{
if(offset == NULL) {
zend_throw_error(NULL, "Cannot apply [] to GL\\Math\\Vec2 object");
}
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(object);
if (Z_TYPE_P(offset) == IS_LONG) {
size_t index = (size_t)Z_LVAL_P(offset);
if (index < 2) {
ZVAL_DOUBLE(rv, obj_ptr->data[index]);
} else {
ZVAL_NULL(rv);
}
} else {
zend_throw_error(NULL, "Only a int offset '$vec[int]' can be used with the GL\\Math\\Vec2 object");
ZVAL_NULL(rv);
}
return rv;
}
void phpglfw_math_vec2_array_set_handler(zend_object *object, zval *offset, zval *value)
{
if (Z_TYPE_P(value) != IS_DOUBLE) {
zend_throw_error(NULL, "Trying to store non float value in a Vec2.");
return;
}
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(object);
if (offset == NULL) {
zend_throw_error(NULL, "You cannot append values into a Vec2.");
}
else {
if (Z_TYPE_P(offset) == IS_LONG) {
size_t index = (size_t)Z_LVAL_P(offset);
if (index >= 2) {
zend_throw_error(NULL, "Vec2 has a fixed space, the given index [%d] is out of bounds...", (int) index);
}
obj_ptr->data[index] = Z_DVAL_P(value);
} else {
zend_throw_error(NULL, "Only a int offset '$vec[int]' can be used with the GL\\Math\\Vec2 object");
}
}
}
static int phpglfw_math_vec2_serialize_handler(zval *object, unsigned char **buffer, size_t *buf_len, zend_serialize_data *data)
{
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(object));
smart_str buf = {0};
zval zv;
php_serialize_data_t serialize_data;
PHP_VAR_SERIALIZE_INIT(serialize_data);
ZVAL_DOUBLE(&zv, obj_ptr->data[0]);
php_var_serialize(&buf, &zv, &serialize_data);
ZVAL_DOUBLE(&zv, obj_ptr->data[1]);
php_var_serialize(&buf, &zv, &serialize_data);
PHP_VAR_SERIALIZE_DESTROY(serialize_data);
*buffer = (unsigned char *) estrndup(ZSTR_VAL(buf.s), ZSTR_LEN(buf.s));
*buf_len = ZSTR_LEN(buf.s);
zend_string_release_ex(buf.s, 0);
return SUCCESS;
}
int phpglfw_math_vec2_unserialize_handler(zval *object, zend_class_entry *ce, const unsigned char *buf, size_t buf_len, zend_unserialize_data *data)
{
const unsigned char *buf_ptr = buf;
const unsigned char *buf_end = buf + buf_len;
zval *zv;
php_unserialize_data_t unserialize_data;
//zend_object *zobj;
PHP_VAR_UNSERIALIZE_INIT(unserialize_data);
object_init_ex(object, phpglfw_math_vec2_ce);
phpglfw_math_vec2_object *obj = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(object));
for (int i = 0; i < 2; i++) {
zv = var_tmp_var(&unserialize_data);
if (!php_var_unserialize(zv, &buf_ptr, buf_end, &unserialize_data) || Z_TYPE_P(zv) != IS_DOUBLE) {
zend_throw_error(NULL, "Could not unserialize vector element");
zend_object_std_dtor(&obj->std);
efree(obj);
PHP_VAR_UNSERIALIZE_DESTROY(unserialize_data);
return FAILURE;
}
obj->data[i] = Z_DVAL_P(zv);
}
PHP_VAR_UNSERIALIZE_DESTROY(unserialize_data);
return SUCCESS;
}
/**
* Vector (Vec2) Property READ / WRITE
*
* ----------------------------------------------------------------------------
*/
static zval *phpglfw_math_vec2_read_prop_handler(zend_object *object, zend_string *member, int type, void **cache_slot, zval *rv)
{
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(object);
if ((type != BP_VAR_R && type != BP_VAR_IS)) {
zend_throw_error(NULL, "GL\\Math\\Vec2" " properties are virtual and cannot be referenced.");
rv = &EG( uninitialized_zval );
} else {
if (zend_string_equals_literal(member, "x")) {
ZVAL_DOUBLE(rv, obj_ptr->data[0]);
}
else if (zend_string_equals_literal(member, "y")) {
ZVAL_DOUBLE(rv, obj_ptr->data[1]);
}
else if (zend_string_equals_literal(member, "r")) {
ZVAL_DOUBLE(rv, obj_ptr->data[0]);
}
else if (zend_string_equals_literal(member, "g")) {
ZVAL_DOUBLE(rv, obj_ptr->data[1]);
}
else {
ZVAL_NULL(rv);
}
}
return rv;
}
static zval *phpglfw_math_vec2_write_prop_handler(zend_object *object, zend_string *member, zval *value, void **cache_slot)
{
if (Z_TYPE_P(value) == IS_LONG) {
convert_to_double(value);
}
if (Z_TYPE_P(value) != IS_DOUBLE) {
zend_throw_error(NULL, "GL\\Math\\Vec2" " properties can only be of type 'float'.");
return value;
}
else {
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(object);
if (zend_string_equals_literal(member, "x")) {
obj_ptr->data[0] = Z_DVAL_P(value);
}
else if (zend_string_equals_literal(member, "y")) {
obj_ptr->data[1] = Z_DVAL_P(value);
}
else if (zend_string_equals_literal(member, "r")) {
obj_ptr->data[0] = Z_DVAL_P(value);
}
else if (zend_string_equals_literal(member, "g")) {
obj_ptr->data[1] = Z_DVAL_P(value);
}
else {
zend_throw_error(NULL, "GL\\Math\\Vec2" " trying to write into a invalid property.");
}
}
return value;
}
/**
* Vector (Vec2) Operation Handler
*
* ----------------------------------------------------------------------------
*/
static zend_always_inline int phpglfw_math_vec2_do_op_scalar_handler(zend_uchar opcode, phpglfw_math_vec2_object *resobj, phpglfw_math_vec2_object *vecobj, zval *mod)
{
if (Z_TYPE_P(mod) == IS_LONG) {
convert_to_double(mod);
}
switch (opcode) {
case ZEND_ADD:
vec2_s_add(resobj->data, vecobj->data, Z_DVAL_P(mod));
return SUCCESS;
case ZEND_SUB:
vec2_s_sub(resobj->data, vecobj->data, Z_DVAL_P(mod));
return SUCCESS;
case ZEND_MUL:
vec2_s_mul(resobj->data, vecobj->data, Z_DVAL_P(mod));
return SUCCESS;
case ZEND_DIV:
vec2_s_div(resobj->data, vecobj->data, Z_DVAL_P(mod));
return SUCCESS;
default:
return FAILURE;
}
}
/**
* Vector operation handler
*/
static int phpglfw_math_vec2_do_op_handler(zend_uchar opcode, zval *result, zval *op1, zval *op2)
{
object_init_ex(result, phpglfw_math_vec2_ce);
phpglfw_math_vec2_object *resobj = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(result));
// if left and right are both vec...
if (
Z_TYPE_P(op1) == IS_OBJECT && Z_OBJCE_P(op1) == phpglfw_math_vec2_ce &&
Z_TYPE_P(op2) == IS_OBJECT && Z_OBJCE_P(op2) == phpglfw_math_vec2_ce ) {
phpglfw_math_vec2_object *vecobj1 = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(op1));
phpglfw_math_vec2_object *vecobj2 = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(op2));
switch (opcode) {
case ZEND_ADD:
vec2_add(resobj->data, vecobj1->data, vecobj2->data);
// resobj->vec[0] = vecobj1->vec[0] + vecobj2->vec[0];
// resobj->vec[1] = vecobj1->vec[1] + vecobj2->vec[1];
// resobj->vec[2] = vecobj1->vec[2] + vecobj2->vec[2];
return SUCCESS;
case ZEND_SUB:
vec2_sub(resobj->data, vecobj1->data, vecobj2->data);
return SUCCESS;
case ZEND_MUL:
vec2_mul(resobj->data, vecobj1->data, vecobj2->data);
return SUCCESS;
case ZEND_DIV:
vec2_div(resobj->data, vecobj1->data, vecobj2->data);
return SUCCESS;
default:
return FAILURE;
}
}
// if left is a vec and right a scalar number
else if (
Z_TYPE_P(op1) == IS_OBJECT && Z_OBJCE_P(op1) == phpglfw_math_vec2_ce &&
(Z_TYPE_P(op2) == IS_LONG || Z_TYPE_P(op2) == IS_DOUBLE)
) {
phpglfw_math_vec2_object *vecobj1 = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(op1));
return phpglfw_math_vec2_do_op_scalar_handler(opcode, resobj, vecobj1, op2);
}
// otherway around
else if (
Z_TYPE_P(op2) == IS_OBJECT && Z_OBJCE_P(op2) == phpglfw_math_vec2_ce &&
(Z_TYPE_P(op1) == IS_LONG || Z_TYPE_P(op1) == IS_DOUBLE)
) {
phpglfw_math_vec2_object *vecobj1 = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(op2));
return phpglfw_math_vec2_do_op_scalar_handler(opcode, resobj, vecobj1, op1);
}
// quat handling on vec3
else {
return FAILURE;
}
}
PHP_METHOD(GL_Math_Vec2, __construct)
{
zval *obj;
obj = getThis();
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(obj));
double xval = 0.0;
double yval = 0.0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|dd", &xval, &yval) == FAILURE) {
return;
}
if (ZEND_NUM_ARGS() == 0) {
return;
}
// if only one argument is given we initalize all values with it
else if (ZEND_NUM_ARGS() == 1) {
obj_ptr->data[0] = xval;
obj_ptr->data[1] = xval;
return;
}
obj_ptr->data[0] = xval;
obj_ptr->data[1] = yval;
}
PHP_METHOD(GL_Math_Vec2, __toString)
{
if (zend_parse_parameters_none() == FAILURE) {
RETURN_THROWS();
}
zval *obj;
obj = getThis();
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(obj));
smart_str my_str = {0};
smart_str_appends(&my_str, "vec2(");
for (int i = 0; i < 2; i++) {
glfw_smart_str_append_double(&my_str, obj_ptr->data[i], 4, true);
if (i < 2 - 1) {
smart_str_appends(&my_str, ", ");
}
}
smart_str_appends(&my_str, ")");
smart_str_0(&my_str);
RETURN_STRINGL(ZSTR_VAL(my_str.s), ZSTR_LEN(my_str.s));
smart_str_free(&my_str);
}
/**
* Vector (Vec2) specific methods
*
* ----------------------------------------------------------------------------
*/
PHP_METHOD(GL_Math_Vec2, copy)
{
zval *obj;
obj = getThis();
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(obj));
// create new vec
object_init_ex(return_value, phpglfw_math_vec2_ce);
phpglfw_math_vec2_object *resobj = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(return_value));
// copy data
for (int i = 0; i < 2; i++) {
resobj->data[i] = obj_ptr->data[i];
}
}
PHP_METHOD(GL_Math_Vec2, normalized)
{
zval *vec_zval;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "O", &vec_zval, phpglfw_math_vec2_ce) == FAILURE) {
return;
}
object_init_ex(return_value, phpglfw_math_vec2_ce);
phpglfw_math_vec2_object *res_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(return_value));
phpglfw_math_vec2_object *in_obj = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(vec_zval));
vec2_norm(res_ptr->data, in_obj->data);
}
PHP_METHOD(GL_Math_Vec2, distance)
{
zval *leftvec_zval, *rightvec_zval;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "OO", &leftvec_zval, phpglfw_math_vec2_ce, &rightvec_zval, phpglfw_math_vec2_ce) == FAILURE) {
return;
}
phpglfw_math_vec2_object *leftvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(leftvec_zval));
phpglfw_math_vec2_object *rightvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(rightvec_zval));
RETURN_DOUBLE(sqrt(vec2_distance_square(leftvec_ptr->data, rightvec_ptr->data)));
}
PHP_METHOD(GL_Math_Vec2, distance2)
{
zval *leftvec_zval, *rightvec_zval;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "OO", &leftvec_zval, phpglfw_math_vec2_ce, &rightvec_zval, phpglfw_math_vec2_ce) == FAILURE) {
return;
}
phpglfw_math_vec2_object *leftvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(leftvec_zval));
phpglfw_math_vec2_object *rightvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(rightvec_zval));
RETURN_DOUBLE(vec2_distance_square(leftvec_ptr->data, rightvec_ptr->data));
}
PHP_METHOD(GL_Math_Vec2, dot)
{
zval *rightvec_zval;
zval *leftvec_zval;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "OO", &leftvec_zval, phpglfw_math_vec2_ce, &rightvec_zval, phpglfw_math_vec2_ce) == FAILURE) {
RETURN_THROWS();
}
phpglfw_math_vec2_object *leftvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(leftvec_zval));
phpglfw_math_vec2_object *rightvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(rightvec_zval));
RETURN_DOUBLE(vec2_mul_inner(leftvec_ptr->data, rightvec_ptr->data));
}
PHP_METHOD(GL_Math_Vec2, mix)
{
zval *rightvec_zval;
zval *leftvec_zval;
double ratio;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "OOd", &leftvec_zval, phpglfw_math_vec2_ce, &rightvec_zval, phpglfw_math_vec2_ce, &ratio) == FAILURE) {
RETURN_THROWS();
}
phpglfw_math_vec2_object *leftvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(leftvec_zval));
phpglfw_math_vec2_object *rightvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(rightvec_zval));
object_init_ex(return_value, phpglfw_math_vec2_ce);
phpglfw_math_vec2_object *res_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(return_value));
vec2_mix(res_ptr->data, leftvec_ptr->data, rightvec_ptr->data, ratio);
}
PHP_METHOD(GL_Math_Vec2, lerp)
{
zval *rightvec_zval;
zval *leftvec_zval;
double ratio;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "OOd", &leftvec_zval, phpglfw_math_vec2_ce, &rightvec_zval, phpglfw_math_vec2_ce, &ratio) == FAILURE) {
RETURN_THROWS();
}
phpglfw_math_vec2_object *leftvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(leftvec_zval));
phpglfw_math_vec2_object *rightvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(rightvec_zval));
object_init_ex(return_value, phpglfw_math_vec2_ce);
phpglfw_math_vec2_object *res_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(return_value));
vec2_lerp(res_ptr->data, leftvec_ptr->data, rightvec_ptr->data, ratio);
}
PHP_METHOD(GL_Math_Vec2, slerp)
{
zval *rightvec_zval;
zval *leftvec_zval;
double ratio;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "OOd", &leftvec_zval, phpglfw_math_vec2_ce, &rightvec_zval, phpglfw_math_vec2_ce, &ratio) == FAILURE) {
RETURN_THROWS();
}
phpglfw_math_vec2_object *leftvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(leftvec_zval));
phpglfw_math_vec2_object *rightvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(rightvec_zval));
object_init_ex(return_value, phpglfw_math_vec2_ce);
phpglfw_math_vec2_object *res_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(return_value));
vec2_slerp(res_ptr->data, leftvec_ptr->data, rightvec_ptr->data, ratio);
}
PHP_METHOD(GL_Math_Vec2, length)
{
if (zend_parse_parameters_none() == FAILURE) {
RETURN_THROWS();
}
zval *obj;
obj = getThis();
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(obj));
RETURN_DOUBLE(vec2_len(obj_ptr->data));
}
PHP_METHOD(GL_Math_Vec2, distanceTo)
{
zval *rightvec_zval;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "O", &rightvec_zval, phpglfw_math_vec2_ce) == FAILURE) {
return;
}
zval *obj;
obj = getThis();
phpglfw_math_vec2_object *leftvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(obj));
phpglfw_math_vec2_object *rightvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(rightvec_zval));
RETURN_DOUBLE(sqrt(vec2_distance_square(leftvec_ptr->data, rightvec_ptr->data)));
}
PHP_METHOD(GL_Math_Vec2, distance2To)
{
zval *rightvec_zval;
if (zend_parse_parameters(ZEND_NUM_ARGS() , "O", &rightvec_zval, phpglfw_math_vec2_ce) == FAILURE) {
return;
}
zval *obj;
obj = getThis();
phpglfw_math_vec2_object *leftvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(obj));
phpglfw_math_vec2_object *rightvec_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(rightvec_zval));
RETURN_DOUBLE(vec2_distance_square(leftvec_ptr->data, rightvec_ptr->data));
}
PHP_METHOD(GL_Math_Vec2, normalize)
{
if (zend_parse_parameters_none() == FAILURE) {
RETURN_THROWS();
}
zval *obj;
obj = getThis();
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(obj));
vec2_norm(obj_ptr->data, obj_ptr->data);
}
PHP_METHOD(GL_Math_Vec2, abs)
{
if (zend_parse_parameters_none() == FAILURE) {
RETURN_THROWS();
}
zval *obj;
obj = getThis();
phpglfw_math_vec2_object *obj_ptr = phpglfw_math_vec2_objectptr_from_zobj_p(Z_OBJ_P(obj));
vec2_abs(obj_ptr->data, obj_ptr->data);
}
/**
* GL\Math\Vec3
*
* ----------------------------------------------------------------------------
*/
static zend_object_handlers phpglfw_math_vec3_handlers;
/**
* Creation (GL\Math\Vec3)
*/
zend_object *phpglfw_math_vec3_create_handler(zend_class_entry *class_type)
{
size_t block_len = sizeof(phpglfw_math_vec3_object) + zend_object_properties_size(class_type);
phpglfw_math_vec3_object *intern = emalloc(block_len);
memset(intern, 0, block_len);
for(int i=0; i<3; i++) {
intern->data[i] = 0.0f;
}
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
intern->std.handlers = &phpglfw_math_vec3_handlers;
return &intern->std;
}
static HashTable *phpglfw_math_vec3_debug_info_handler(zend_object *object, int *is_temp)
{
phpglfw_math_vec3_object *obj_ptr = phpglfw_math_vec3_objectptr_from_zobj_p(object);
zval zv;
HashTable *ht;
ht = zend_new_array(3);
*is_temp = 1;
ZVAL_DOUBLE(&zv, obj_ptr->data[0]);
zend_hash_str_update(ht, "x", sizeof("x") - 1, &zv);
ZVAL_DOUBLE(&zv, obj_ptr->data[1]);
zend_hash_str_update(ht, "y", sizeof("y") - 1, &zv);
ZVAL_DOUBLE(&zv, obj_ptr->data[2]);
zend_hash_str_update(ht, "z", sizeof("z") - 1, &zv);
return ht;
}
zval *phpglfw_math_vec3_array_get_handler(zend_object *object, zval *offset, int type, zval *rv)
{
if(offset == NULL) {
zend_throw_error(NULL, "Cannot apply [] to GL\\Math\\Vec3 object");
}
phpglfw_math_vec3_object *obj_ptr = phpglfw_math_vec3_objectptr_from_zobj_p(object);
if (Z_TYPE_P(offset) == IS_LONG) {
size_t index = (size_t)Z_LVAL_P(offset);
if (index < 3) {
ZVAL_DOUBLE(rv, obj_ptr->data[index]);
} else {
ZVAL_NULL(rv);
}
} else {
zend_throw_error(NULL, "Only a int offset '$vec[int]' can be used with the GL\\Math\\Vec3 object");
ZVAL_NULL(rv);
}
return rv;
}
void phpglfw_math_vec3_array_set_handler(zend_object *object, zval *offset, zval *value)
{
if (Z_TYPE_P(value) != IS_DOUBLE) {
zend_throw_error(NULL, "Trying to store non float value in a Vec3.");
return;
}
phpglfw_math_vec3_object *obj_ptr = phpglfw_math_vec3_objectptr_from_zobj_p(object);
if (offset == NULL) {
zend_throw_error(NULL, "You cannot append values into a Vec3.");
}
else {
if (Z_TYPE_P(offset) == IS_LONG) {
size_t index = (size_t)Z_LVAL_P(offset);
if (index >= 3) {
zend_throw_error(NULL, "Vec3 has a fixed space, the given index [%d] is out of bounds...", (int) index);
}
obj_ptr->data[index] = Z_DVAL_P(value);
} else {
zend_throw_error(NULL, "Only a int offset '$vec[int]' can be used with the GL\\Math\\Vec3 object");
}
}
}
static int phpglfw_math_vec3_serialize_handler(zval *object, unsigned char **buffer, size_t *buf_len, zend_serialize_data *data)
{
phpglfw_math_vec3_object *obj_ptr = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(object));
smart_str buf = {0};
zval zv;
php_serialize_data_t serialize_data;
PHP_VAR_SERIALIZE_INIT(serialize_data);
ZVAL_DOUBLE(&zv, obj_ptr->data[0]);
php_var_serialize(&buf, &zv, &serialize_data);
ZVAL_DOUBLE(&zv, obj_ptr->data[1]);
php_var_serialize(&buf, &zv, &serialize_data);
ZVAL_DOUBLE(&zv, obj_ptr->data[2]);
php_var_serialize(&buf, &zv, &serialize_data);
PHP_VAR_SERIALIZE_DESTROY(serialize_data);
*buffer = (unsigned char *) estrndup(ZSTR_VAL(buf.s), ZSTR_LEN(buf.s));
*buf_len = ZSTR_LEN(buf.s);
zend_string_release_ex(buf.s, 0);
return SUCCESS;
}
int phpglfw_math_vec3_unserialize_handler(zval *object, zend_class_entry *ce, const unsigned char *buf, size_t buf_len, zend_unserialize_data *data)
{
const unsigned char *buf_ptr = buf;
const unsigned char *buf_end = buf + buf_len;
zval *zv;
php_unserialize_data_t unserialize_data;
//zend_object *zobj;
PHP_VAR_UNSERIALIZE_INIT(unserialize_data);
object_init_ex(object, phpglfw_math_vec3_ce);
phpglfw_math_vec3_object *obj = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(object));
for (int i = 0; i < 3; i++) {
zv = var_tmp_var(&unserialize_data);
if (!php_var_unserialize(zv, &buf_ptr, buf_end, &unserialize_data) || Z_TYPE_P(zv) != IS_DOUBLE) {
zend_throw_error(NULL, "Could not unserialize vector element");
zend_object_std_dtor(&obj->std);
efree(obj);
PHP_VAR_UNSERIALIZE_DESTROY(unserialize_data);
return FAILURE;
}
obj->data[i] = Z_DVAL_P(zv);
}
PHP_VAR_UNSERIALIZE_DESTROY(unserialize_data);
return SUCCESS;
}
/**
* Vector (Vec3) Property READ / WRITE
*
* ----------------------------------------------------------------------------
*/
static zval *phpglfw_math_vec3_read_prop_handler(zend_object *object, zend_string *member, int type, void **cache_slot, zval *rv)
{
phpglfw_math_vec3_object *obj_ptr = phpglfw_math_vec3_objectptr_from_zobj_p(object);
if ((type != BP_VAR_R && type != BP_VAR_IS)) {
zend_throw_error(NULL, "GL\\Math\\Vec3" " properties are virtual and cannot be referenced.");
rv = &EG( uninitialized_zval );
} else {
if (zend_string_equals_literal(member, "x")) {
ZVAL_DOUBLE(rv, obj_ptr->data[0]);
}
else if (zend_string_equals_literal(member, "y")) {
ZVAL_DOUBLE(rv, obj_ptr->data[1]);
}
else if (zend_string_equals_literal(member, "z")) {
ZVAL_DOUBLE(rv, obj_ptr->data[2]);
}
else if (zend_string_equals_literal(member, "r")) {
ZVAL_DOUBLE(rv, obj_ptr->data[0]);
}
else if (zend_string_equals_literal(member, "g")) {
ZVAL_DOUBLE(rv, obj_ptr->data[1]);
}
else if (zend_string_equals_literal(member, "b")) {
ZVAL_DOUBLE(rv, obj_ptr->data[2]);
}
else {
ZVAL_NULL(rv);
}
}
return rv;
}
static zval *phpglfw_math_vec3_write_prop_handler(zend_object *object, zend_string *member, zval *value, void **cache_slot)
{
if (Z_TYPE_P(value) == IS_LONG) {
convert_to_double(value);
}
if (Z_TYPE_P(value) != IS_DOUBLE) {
zend_throw_error(NULL, "GL\\Math\\Vec3" " properties can only be of type 'float'.");
return value;
}
else {
phpglfw_math_vec3_object *obj_ptr = phpglfw_math_vec3_objectptr_from_zobj_p(object);
if (zend_string_equals_literal(member, "x")) {
obj_ptr->data[0] = Z_DVAL_P(value);
}
else if (zend_string_equals_literal(member, "y")) {
obj_ptr->data[1] = Z_DVAL_P(value);
}
else if (zend_string_equals_literal(member, "z")) {
obj_ptr->data[2] = Z_DVAL_P(value);
}
else if (zend_string_equals_literal(member, "r")) {
obj_ptr->data[0] = Z_DVAL_P(value);
}
else if (zend_string_equals_literal(member, "g")) {
obj_ptr->data[1] = Z_DVAL_P(value);
}
else if (zend_string_equals_literal(member, "b")) {
obj_ptr->data[2] = Z_DVAL_P(value);
}
else {
zend_throw_error(NULL, "GL\\Math\\Vec3" " trying to write into a invalid property.");
}
}
return value;
}
/**
* Vector (Vec3) Operation Handler
*
* ----------------------------------------------------------------------------
*/
static zend_always_inline int phpglfw_math_vec3_do_op_scalar_handler(zend_uchar opcode, phpglfw_math_vec3_object *resobj, phpglfw_math_vec3_object *vecobj, zval *mod)
{
if (Z_TYPE_P(mod) == IS_LONG) {
convert_to_double(mod);
}
switch (opcode) {
case ZEND_ADD:
vec3_s_add(resobj->data, vecobj->data, Z_DVAL_P(mod));
return SUCCESS;
case ZEND_SUB:
vec3_s_sub(resobj->data, vecobj->data, Z_DVAL_P(mod));
return SUCCESS;
case ZEND_MUL:
vec3_s_mul(resobj->data, vecobj->data, Z_DVAL_P(mod));
return SUCCESS;
case ZEND_DIV:
vec3_s_div(resobj->data, vecobj->data, Z_DVAL_P(mod));
return SUCCESS;
default:
return FAILURE;
}
}
/**
* Vector operation handler
*/
static int phpglfw_math_vec3_do_op_handler(zend_uchar opcode, zval *result, zval *op1, zval *op2)
{
object_init_ex(result, phpglfw_math_vec3_ce);
phpglfw_math_vec3_object *resobj = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(result));
// if left and right are both vec...
if (
Z_TYPE_P(op1) == IS_OBJECT && Z_OBJCE_P(op1) == phpglfw_math_vec3_ce &&
Z_TYPE_P(op2) == IS_OBJECT && Z_OBJCE_P(op2) == phpglfw_math_vec3_ce ) {
phpglfw_math_vec3_object *vecobj1 = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(op1));
phpglfw_math_vec3_object *vecobj2 = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(op2));
switch (opcode) {
case ZEND_ADD:
vec3_add(resobj->data, vecobj1->data, vecobj2->data);
// resobj->vec[0] = vecobj1->vec[0] + vecobj2->vec[0];
// resobj->vec[1] = vecobj1->vec[1] + vecobj2->vec[1];
// resobj->vec[2] = vecobj1->vec[2] + vecobj2->vec[2];
return SUCCESS;
case ZEND_SUB:
vec3_sub(resobj->data, vecobj1->data, vecobj2->data);
return SUCCESS;
case ZEND_MUL:
vec3_mul(resobj->data, vecobj1->data, vecobj2->data);
return SUCCESS;
case ZEND_DIV:
vec3_div(resobj->data, vecobj1->data, vecobj2->data);
return SUCCESS;
default:
return FAILURE;
}
}
// if left is a vec and right a scalar number
else if (
Z_TYPE_P(op1) == IS_OBJECT && Z_OBJCE_P(op1) == phpglfw_math_vec3_ce &&
(Z_TYPE_P(op2) == IS_LONG || Z_TYPE_P(op2) == IS_DOUBLE)
) {
phpglfw_math_vec3_object *vecobj1 = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(op1));
return phpglfw_math_vec3_do_op_scalar_handler(opcode, resobj, vecobj1, op2);
}
// otherway around
else if (
Z_TYPE_P(op2) == IS_OBJECT && Z_OBJCE_P(op2) == phpglfw_math_vec3_ce &&
(Z_TYPE_P(op1) == IS_LONG || Z_TYPE_P(op1) == IS_DOUBLE)
) {
phpglfw_math_vec3_object *vecobj1 = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(op2));
return phpglfw_math_vec3_do_op_scalar_handler(opcode, resobj, vecobj1, op1);
}
// quat handling on vec3
// left is vec3 right is quat
else if (
Z_TYPE_P(op1) == IS_OBJECT && Z_OBJCE_P(op1) == phpglfw_math_vec3_ce &&
Z_TYPE_P(op2) == IS_OBJECT && Z_OBJCE_P(op2) == phpglfw_math_quat_ce &&
opcode == ZEND_MUL
) {
phpglfw_math_vec3_object *vecobj = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(op1));
phpglfw_math_quat_object *quatobj = phpglfw_math_quat_objectptr_from_zobj_p(Z_OBJ_P(op2));
vec3_mul_quat(resobj->data, vecobj->data, quatobj->data);
return SUCCESS;
}
else {
return FAILURE;
}
}
PHP_METHOD(GL_Math_Vec3, __construct)
{
zval *obj;
obj = getThis();
phpglfw_math_vec3_object *obj_ptr = phpglfw_math_vec3_objectptr_from_zobj_p(Z_OBJ_P(obj));
double xval = 0.0;
double yval = 0.0;
double zval = 0.0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|ddd", &xval, &yval, &zval) == FAILURE) {
return;
}
if (ZEND_NUM_ARGS() == 0) {
return;
}
// if only one argument is given we initalize all values with it
else if (ZEND_NUM_ARGS() == 1) {
obj_ptr->data[0] = xval;
obj_ptr->data[1] = xval;
obj_ptr->data[2] = xval;
return;