| /* |
| * CAMetalLayer+MoltenVK.h |
| * |
| * Copyright (c) 2014-2019 The Brenwill Workshop Ltd. (http://www.brenwill.com) |
| * |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #import <QuartzCore/QuartzCore.h> |
| |
| /** Extensions to CAMetalLayer to support MoltenVK. */ |
| @interface CAMetalLayer (MoltenVK) |
| |
| /** |
| * Returns the natural drawable size for this layer. |
| * |
| * The natural drawable size is the size of the bounds property of this layer, multiplied |
| * by the contentsScale property of this layer, and is the value that the drawableSize |
| * property will be set to when the updatedDrawableSizeMVK nethod is invoked. |
| */ |
| @property(nonatomic, readonly) CGSize naturalDrawableSizeMVK; |
| |
| /** |
| * Ensures the drawableSize property of this layer is up to date, by ensuring |
| * it is set to the value returned by the naturalDrawableSizeMVK property. |
| * |
| * Returns the updated drawableSize value. |
| */ |
| -(CGSize) updatedDrawableSizeMVK; |
| |
| /** |
| * Replacement for the displaySyncEnabled property. |
| * |
| * This property allows support under all OS versions. Delegates to the displaySyncEnabled |
| * property if it is available. otherwise, returns YES when read and does nothing when set. |
| */ |
| @property(nonatomic, readwrite) BOOL displaySyncEnabledMVK; |
| |
| /** |
| * Replacement for the maximumDrawableCount property. |
| * |
| * This property allows support under all OS versions. Delegates to the maximumDrawableCount |
| * property if it is available. otherwise, returns zero when read and does nothing when set. |
| */ |
| @property(nonatomic, readwrite) NSUInteger maximumDrawableCountMVK; |
| |
| @end |