1  /*
  2   *
  3   * Copyright 2020-2021 Apple Inc.
  4   *
  5   * Licensed under the Apache License, Version 2.0 (the "License");
  6   * you may not use this file except in compliance with the License.
  7   * You may obtain a copy of the License at
  8   *
  9   *     http://www.apache.org/licenses/LICENSE-2.0
 10   *
 11   * Unless required by applicable law or agreed to in writing, software
 12   * distributed under the License is distributed on an "AS IS" BASIS,
 13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14   * See the License for the specific language governing permissions and
 15   * limitations under the License.
 16   */
 17  
 18  //-------------------------------------------------------------------------------------------------------------------------------------------------------------
 19  //
 20  // MetalKit/MetalKitPrivate.hpp
 21  //
 22  //-------------------------------------------------------------------------------------------------------------------------------------------------------------
 23  
 24  #pragma once
 25  
 26  //-------------------------------------------------------------------------------------------------------------------------------------------------------------
 27  
 28  #include <objc/runtime.h>
 29  
 30  //-------------------------------------------------------------------------------------------------------------------------------------------------------------
 31  
 32  #define _MTK_PRIVATE_CLS( symbol )				   ( Private::Class::s_k ## symbol )
 33  #define _MTK_PRIVATE_SEL( accessor )				 ( Private::Selector::s_k ## accessor )
 34  
 35  //-------------------------------------------------------------------------------------------------------------------------------------------------------------
 36  
 37  #if defined( MTK_PRIVATE_IMPLEMENTATION )
 38  
 39  #define _MTK_PRIVATE_VISIBILITY						__attribute__( ( visibility( "default" ) ) )
 40  #define _MTK_PRIVATE_IMPORT						  __attribute__( ( weak_import ) )
 41  
 42  #if __OBJC__
 43  #define  _MTK_PRIVATE_OBJC_LOOKUP_CLASS( symbol  )   ( ( __bridge void* ) objc_lookUpClass( # symbol ) )
 44  #else
 45  #define  _MTK_PRIVATE_OBJC_LOOKUP_CLASS( symbol  )   objc_lookUpClass( # symbol ) 
 46  #endif // __OBJC__
 47  
 48  #define _MTK_PRIVATE_DEF_CLS( symbol )			   void*				   s_k ## symbol	   _MTK_PRIVATE_VISIBILITY = _MTK_PRIVATE_OBJC_LOOKUP_CLASS( symbol );
 49  #define _MTK_PRIVATE_DEF_SEL( accessor, symbol )	 SEL					 s_k ## accessor	 _MTK_PRIVATE_VISIBILITY = sel_registerName( symbol );
 50  #define _MTK_PRIVATE_DEF_CONST( type, symbol )	   _NS_EXTERN type const   MTK ## symbo		_MTK_PRIVATE_IMPORT; \
 51  													 type const			  MTK::symbol	 = ( nullptr != &MTK ## symbol ) ? MTK ## symbol : nullptr;
 52  
 53  
 54  #else
 55  
 56  #define _MTK_PRIVATE_DEF_CLS( symbol )				extern void*			s_k ## symbol;
 57  #define _MTK_PRIVATE_DEF_SEL( accessor, symbol )	 extern SEL			  s_k ## accessor;
 58  #define _MTK_PRIVATE_DEF_CONST( type, symbol )
 59  
 60  
 61  #endif // MTK_PRIVATE_IMPLEMENTATION
 62  
 63  //-------------------------------------------------------------------------------------------------------------------------------------------------------------
 64  
 65  namespace MTK::Private::Class {
 66  
 67  _MTK_PRIVATE_DEF_CLS( MTKView );
 68  
 69  } // Class
 70  
 71  //-------------------------------------------------------------------------------------------------------------------------------------------------------------
 72  
 73  namespace MTK::Private::Selector
 74  {
 75  
 76  _MTK_PRIVATE_DEF_SEL( autoresizeDrawable,
 77  					 "autoresizeDrawable" );
 78  
 79  _MTK_PRIVATE_DEF_SEL( clearColor,
 80  					 "clearColor" );
 81  
 82  _MTK_PRIVATE_DEF_SEL( clearDepth,
 83  					 "clearDepth" );
 84  
 85  _MTK_PRIVATE_DEF_SEL( clearStencil,
 86  					 "clearStencil" );
 87  
 88  _MTK_PRIVATE_DEF_SEL( colorPixelFormat,
 89  					 "colorPixelFormat" );
 90  
 91  _MTK_PRIVATE_DEF_SEL( colorspace,
 92  					 "colorspace" );
 93  
 94  _MTK_PRIVATE_DEF_SEL( currentDrawable,
 95  					 "currentDrawable" );
 96  
 97  _MTK_PRIVATE_DEF_SEL( currentRenderPassDescriptor,
 98  					 "currentRenderPassDescriptor" );
 99  
100  _MTK_PRIVATE_DEF_SEL( device,
101  					 "device" );
102  
103  _MTK_PRIVATE_DEF_SEL( delegate,
104  					 "delegate" );
105  
106  _MTK_PRIVATE_DEF_SEL( depthStencilAttachmentTextureUsage,
107  					 "depthStencilAttachmentTextureUsage" );
108  
109  _MTK_PRIVATE_DEF_SEL( depthStencilPixelFormat,
110  					 "depthStencilPixelFormat" );
111  
112  _MTK_PRIVATE_DEF_SEL( depthStencilTexture,
113  					 "depthStencilTexture" );
114  
115  _MTK_PRIVATE_DEF_SEL( draw,
116  					 "draw" );
117  
118  _MTK_PRIVATE_DEF_SEL( drawableSize,
119  					 "drawableSize" );
120  
121  _MTK_PRIVATE_DEF_SEL( drawInMTKView_,
122  					 "drawInMTKView:" );
123  
124  _MTK_PRIVATE_DEF_SEL( enableSetNeedsDisplay,
125  					 "enableSetNeedsDisplay" );
126  
127  _MTK_PRIVATE_DEF_SEL( framebufferOnly,
128  					 "framebufferOnly" );
129  
130  _MTK_PRIVATE_DEF_SEL( initWithCoder_,
131  					 "initWithCoder:" );
132  
133  _MTK_PRIVATE_DEF_SEL( initWithFrame_device_,
134  					 "initWithFrame:device:" );
135  
136  _MTK_PRIVATE_DEF_SEL( multisampleColorAttachmentTextureUsage,
137  					 "multisampleColorAttachmentTextureUsage" );
138  
139  _MTK_PRIVATE_DEF_SEL( multisampleColorTexture,
140  					 "multisampleColorTexture" );
141  
142  _MTK_PRIVATE_DEF_SEL( isPaused,
143  					 "isPaused" );
144  
145  _MTK_PRIVATE_DEF_SEL( preferredFramesPerSecond,
146  					 "preferredFramesPerSecond" );
147  
148  _MTK_PRIVATE_DEF_SEL( preferredDevice,
149  					 "preferredDevice" );
150  
151  _MTK_PRIVATE_DEF_SEL( preferredDrawableSize,
152  					 "preferredDrawableSize" );
153  
154  _MTK_PRIVATE_DEF_SEL( presentsWithTransaction,
155  					 "presentsWithTransaction" );
156  
157  _MTK_PRIVATE_DEF_SEL( sampleCount,
158  					 "sampleCount" );
159  
160  _MTK_PRIVATE_DEF_SEL( setAutoresizeDrawable_,
161  					 "setAutoresizeDrawable:" );
162  
163  _MTK_PRIVATE_DEF_SEL( setClearColor_,
164  					 "setClearColor:" );
165  
166  _MTK_PRIVATE_DEF_SEL( setClearDepth_,
167  					 "setClearDepth:" );
168  
169  _MTK_PRIVATE_DEF_SEL( setClearStencil_,
170  					 "setClearStencil:" );
171  
172  _MTK_PRIVATE_DEF_SEL( setColorPixelFormat_,
173  					 "setColorPixelFormat:" );
174  
175  _MTK_PRIVATE_DEF_SEL( setColorspace_,
176  					 "setColorspace:" );
177  
178  _MTK_PRIVATE_DEF_SEL( setDelegate_,
179  					 "setDelegate:" );
180  
181  _MTK_PRIVATE_DEF_SEL( setDepthStencilAttachmentTextureUsage_,
182  					 "setDepthStencilAttachmentTextureUsage:" );
183  
184  _MTK_PRIVATE_DEF_SEL( setDepthStencilPixelFormat_,
185  					 "setDepthStencilPixelFormat:" );
186  
187  _MTK_PRIVATE_DEF_SEL( setDevice_,
188  					 "setDevice:" );
189  
190  _MTK_PRIVATE_DEF_SEL( setDrawableSize_,
191  					 "setDrawableSize:" );
192  
193  _MTK_PRIVATE_DEF_SEL( setEnableSetNeedsDisplay_,
194  					 "setEnableSetNeedsDisplay:" );
195  
196  _MTK_PRIVATE_DEF_SEL( setFramebufferOnly_,
197  					 "setFramebufferOnly:" );
198  
199  _MTK_PRIVATE_DEF_SEL( setMultisampleColorAttachmentTextureUsage_,
200  					 "setMultisampleColorAttachmentTextureUsage:" )
201  
202  _MTK_PRIVATE_DEF_SEL( setPaused_,
203  					 "setPaused:" );
204  
205  _MTK_PRIVATE_DEF_SEL( setPreferredFramesPerSecond_,
206  					 "setPreferredFramesPerSecond:" );
207  
208  _MTK_PRIVATE_DEF_SEL( setPresentsWithTransaction_,
209  					 "setPresentsWithTransaction:" );
210  
211  _MTK_PRIVATE_DEF_SEL( setSampleCount_,
212  					 "setSampleCount:" );
213  
214  _MTK_PRIVATE_DEF_SEL( releaseDrawables,
215  					 "releaseDrawables" );
216  
217  }
218  
219  //---------
220