str.go (1073B)
1 // Copyright 2020 The Ebiten Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 //go:build android || ios 16 // +build android ios 17 18 package gles 19 20 // #include <stdlib.h> 21 import "C" 22 23 import ( 24 "unsafe" 25 ) 26 27 func cString(str string) (uintptr, func()) { 28 ptr := C.CString(str) 29 return uintptr(unsafe.Pointer(ptr)), func() { C.free(unsafe.Pointer(ptr)) } 30 } 31 32 func cStringPtr(str string) (uintptr, func()) { 33 s, free := cString(str) 34 ptr := C.malloc(C.size_t(unsafe.Sizeof((*int)(nil)))) 35 *(*uintptr)(ptr) = s 36 return uintptr(ptr), func() { 37 free() 38 C.free(ptr) 39 } 40 }