1 /* 2 * Copyright 2017 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #import <Metal/Metal.h> 12 13 #import "RTCMTLRenderer.h" 14 15 #define MTL_STRINGIFY(s) @ #s 16 17 NS_ASSUME_NONNULL_BEGIN 18 19 @interface RTCMTLRenderer (Private) 20 - (nullable id<MTLDevice>)currentMetalDevice; 21 - (NSString *)shaderSource; 22 - (BOOL)setupTexturesForFrame:(nonnull RTC_OBJC_TYPE(RTCVideoFrame) *)frame; 23 - (void)uploadTexturesToRenderEncoder:(id<MTLRenderCommandEncoder>)renderEncoder; 24 - (void)getWidth:(nonnull int *)width 25 height:(nonnull int *)height 26 cropWidth:(nonnull int *)cropWidth 27 cropHeight:(nonnull int *)cropHeight 28 cropX:(nonnull int *)cropX 29 cropY:(nonnull int *)cropY 30 ofFrame:(nonnull RTC_OBJC_TYPE(RTCVideoFrame) *)frame; 31 @end 32 33 NS_ASSUME_NONNULL_END 34