49 lines
1.4 KiB
Objective-C
49 lines
1.4 KiB
Objective-C
//
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// SCMetalModule.h
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// Snapchat
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//
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// Created by Michel Loenngren on 7/19/17.
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//
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//
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#import "SCMetalTextureResource.h"
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#import "SCMetalUtils.h"
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#import "SCProcessingModule.h"
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#import <Foundation/Foundation.h>
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@protocol SCMetalModuleFunctionProvider <NSObject>
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@property (nonatomic, readonly) NSString *functionName;
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@end
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@protocol SCMetalRenderCommand <SCMetalModuleFunctionProvider>
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/**
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Sets textures and parameters for the shader function. When implementing this function, the command encoder must be
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computed and the pipeline state set. That is, ensure that there are calls to: [commandBuffer computeCommandEncoder]
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and [commandEncoder setComputePipelineState:pipelineState].
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*/
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#if !TARGET_IPHONE_SIMULATOR
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- (id<MTLComputeCommandEncoder>)encodeMetalCommand:(id<MTLCommandBuffer>)commandBuffer
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pipelineState:(id<MTLComputePipelineState>)pipelineState
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textureResource:(SCMetalTextureResource *)textureResource;
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#endif
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- (BOOL)requiresDepthData;
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@end
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/**
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NOTE: If we start chaining multiple metal modules we should
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not run them back to back but instead chain different render
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passes.
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*/
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@interface SCMetalModule : NSObject <SCProcessingModule>
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// Designated initializer: SCMetalModule should always have a SCMetalRenderCommand
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- (instancetype)initWithMetalRenderCommand:(id<SCMetalRenderCommand>)metalRenderCommand;
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@end
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