ebiten/internal/graphicsdriver/opengl/gles/str.go
Hajime Hoshi f611b48c71 graphicsdriver/opengl: Use native GLES functions for mobiles
After this change, GL functions for mobiles, especially Android, are
native ones instead of golang.org/x/mobile/gl functions in order to
reduce goroutine context switches.

On gomobile-build, golang.org/x/mobile/gl functions are still used.

Fixes #1387
2020-10-19 03:51:20 +09:00

40 lines
1.0 KiB
Go

// Copyright 2020 The Ebiten Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build android ios
package gles
// #include <stdlib.h>
import "C"
import (
"unsafe"
)
func cString(str string) (uintptr, func()) {
ptr := C.CString(str)
return uintptr(unsafe.Pointer(ptr)), func() { C.free(unsafe.Pointer(ptr)) }
}
func cStringPtr(str string) (uintptr, func()) {
s, free := cString(str)
ptr := C.malloc(C.size_t(unsafe.Sizeof((*int)(nil))))
*(*uintptr)(ptr) = s
return uintptr(ptr), func() {
free()
C.free(ptr)
}
}