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@class PTMetalContext, NSArray, PTMTLDropHints;
@protocol MTLTexture, MTLComputePipelineState;

@interface PTGlobalReduction : NSObject {
    PTMetalContext *_metalContext;
    id<MTLTexture> _texPing;
    id<MTLTexture> _texPong;
    NSArray *_simdTextures;
    NSArray *_simdMinMaxTextures;
    id<MTLComputePipelineState> _parallelReductionTextureSimd;
    id<MTLComputePipelineState> _parallelReductionTextureMinMaxSimd;
    id<MTLComputePipelineState> _parallelReductionAverage;
    id<MTLComputePipelineState> _parallelReductionMax;
    id<MTLComputePipelineState> _parallelReductionMin;
    PTMTLDropHints *_dropHints;
    struct { unsigned long long width; unsigned long long height; unsigned long long depth; } simdReductionThreadsPerGroup;
    short simdReductionThreadGroups[2];
    BOOL _supportGpuSIMD;
}

- (void).cxx_destruct;
- (id)initWithMetalContext:(id)a0 textureSize:(struct CGSize { double x0; double x1; })a1;
- (id)initWithMetalContext:(id)a0 textureSize:(struct CGSize { double x0; double x1; })a1 pixelFormat:(unsigned long long)a2;
- (void)parallelReduction:(id)a0 inTexture:(id)a1 globalBuffer:(id)a2 offset:(int)a3 pipelineState:(id)a4 reductionType:(int)a5 factor:(float)a6;
- (void)parallelReductionAverage:(id)a0 inTexture:(id)a1 outGlobalAverage:(id)a2;
- (void)parallelReductionMax:(id)a0 inTexture:(id)a1 globalMaxBuffer:(id)a2;
- (void)parallelReductionMin:(id)a0 inTexture:(id)a1 globalMinBuffer:(id)a2;
- (void)parallelReductionMinMax:(id)a0 inTexture:(id)a1 globalMinMaxBuffer:(id)a2;
- (void)parallelReductionTextureMinMaxSimd:(id)a0 inTexture:(id)a1 globalBuffer:(id)a2;
- (void)parallelReductionTextureSimd:(id)a0 inTexture:(id)a1 globalBuffer:(id)a2 offset:(int)a3 reductionType:(int)a4 factor:(float)a5;

@end