mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-27 12:18:55 +01:00
96 lines
2.5 KiB
Go
96 lines
2.5 KiB
Go
// Copyright 2019 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.
|
|
|
|
//go:build darwin
|
|
// +build darwin
|
|
|
|
package metal
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/metal/ca"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/metal/mtl"
|
|
)
|
|
|
|
type view struct {
|
|
window uintptr
|
|
uiview uintptr
|
|
|
|
windowChanged bool
|
|
vsync bool
|
|
|
|
device mtl.Device
|
|
ml ca.MetalLayer
|
|
|
|
once sync.Once
|
|
}
|
|
|
|
func (v *view) setDrawableSize(width, height int) {
|
|
v.ml.SetDrawableSize(width, height)
|
|
}
|
|
|
|
func (v *view) getMTLDevice() mtl.Device {
|
|
return v.device
|
|
}
|
|
|
|
func (v *view) setDisplaySyncEnabled(enabled bool) {
|
|
v.ml.SetDisplaySyncEnabled(enabled)
|
|
v.vsync = enabled
|
|
}
|
|
|
|
func (v *view) colorPixelFormat() mtl.PixelFormat {
|
|
return v.ml.PixelFormat()
|
|
}
|
|
|
|
func (v *view) reset() error {
|
|
var err error
|
|
v.device, err = mtl.CreateSystemDefaultDevice()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
v.ml = ca.MakeMetalLayer()
|
|
v.ml.SetDevice(v.device)
|
|
// https://developer.apple.com/documentation/quartzcore/cametallayer/1478155-pixelformat
|
|
//
|
|
// The pixel format for a Metal layer must be MTLPixelFormatBGRA8Unorm,
|
|
// MTLPixelFormatBGRA8Unorm_sRGB, MTLPixelFormatRGBA16Float, MTLPixelFormatBGRA10_XR, or
|
|
// MTLPixelFormatBGRA10_XR_sRGB.
|
|
v.ml.SetPixelFormat(mtl.PixelFormatBGRA8UNorm)
|
|
|
|
// When presentsWithTransaction is YES and triple buffering is enabled, nextDrawing returns immediately once every two times.
|
|
// This makes FPS doubled. To avoid this, disable the triple buffering.
|
|
v.ml.SetMaximumDrawableCount(2)
|
|
|
|
// The vsync state might be reset. Set the state again (#1364).
|
|
v.ml.SetDisplaySyncEnabled(v.vsync)
|
|
v.ml.SetFramebufferOnly(true)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (v *view) nextDrawable() ca.MetalDrawable {
|
|
d, err := v.ml.NextDrawable()
|
|
if err != nil {
|
|
// Drawable is nil. This can happen at the initial state. Let's wait and see.
|
|
return ca.MetalDrawable{}
|
|
}
|
|
return d
|
|
}
|
|
|
|
func (v *view) presentsWithTransaction() bool {
|
|
return v.ml.PresentsWithTransaction()
|
|
}
|