@class FigMetalContext;
@protocol MTLComputePipelineState, MTLTexture, MTLCommandQueue, MTLBuffer;

@interface LKTFlowGPU : NSObject {
    FigMetalContext *_mtlContext;
    id<MTLCommandQueue> _commandQueue;
    id<MTLComputePipelineState> _computePipelines[22];
    unsigned long long _maxThreadExecutionWidth;
    struct CGSize { double width; double height; } _ref_pyr_size[10];
    struct CGSize { double width; double height; } _aux_pyr_size[10];
    id<MTLTexture> _I_tex[2][10];
    id<MTLTexture> _I_u32_alias_tex[2][10];
    struct __CVBuffer { } *_G0_pxbuf;
    struct __CVBuffer { } *_G1_pxbuf;
    id<MTLTexture> _G0_tex[10];
    id<MTLTexture> _G1_tex[10];
    struct __CVBuffer { } *_C0_pxbuf;
    struct __CVBuffer { } *_C1_pxbuf;
    id<MTLTexture> _C0_tex[10];
    id<MTLTexture> _C1_tex[10];
    id<MTLBuffer> _Adiagb_buf[2];
    id<MTLBuffer> _Ixy_buf[2];
    id<MTLBuffer> _idt_buf;
    struct __CVBuffer { } *_w_pxbuf;
    id<MTLTexture> _w_tex[10];
    struct __CVBuffer *_uv_fwd_pxbuf[2];
    struct __CVBuffer *_uv_bwd_pxbuf[2];
    id<MTLTexture> _uv_fwd_tex[2][10];
    id<MTLTexture> _uv_bwd_tex[2][10];
    id<MTLTexture> _uv_fwd_u32_alias_tex[2][10];
    id<MTLTexture> _uv_bwd_u32_alias_tex[2][10];
    int _current_frame_index;
    id<MTLTexture> _uv_fwd_tex_user_ref;
    id<MTLTexture> _uv_bwd_tex_user_ref;
    id<MTLBuffer> _kpt_buf;
    id<MTLBuffer> _icp_param_tform_buf;
    id<MTLBuffer> _icp_param_tform_extra_buf;
    id<MTLBuffer> _icp_loss_buf;
    id<MTLBuffer> _icp_reduc_buf;
    float _icp_regularizer_term[10];
    id<MTLTexture> _w_icp_tex_user_ref;
    id<MTLTexture> _icp_derivatives_tg_sum;
    id<MTLTexture> _icp_active_tg_indices_tex;
}

@property (readonly, nonatomic) BOOL isValid;
@property (nonatomic) int inputPixelFormat;
@property (readonly, nonatomic) struct CGSize { double width; double height; } ref_size;
@property (readonly, nonatomic) struct CGSize { double width; double height; } aux_size;
@property (readonly, nonatomic) int nscales;
@property (readonly, nonatomic) int streamFrameCount;
@property (nonatomic) int nwarpings;
@property (readonly, nonatomic) int nscales_icp;
@property (nonatomic) int warping_scheme_icp;
@property (nonatomic) struct parametric_transform { float params[8]; int length_params; } p;
@property (nonatomic) int decimation_factor_icp;
@property (nonatomic) int flow_upper_most_scale;
@property (nonatomic) BOOL useNonLocalRegularization;
@property (nonatomic) int nlreg_radius;
@property (nonatomic) int nlreg_padding;
@property (nonatomic) float nlreg_sigma_l;
@property (nonatomic) float nlreg_sigma_c;
@property (nonatomic) float nlreg_sigma_w;
@property (nonatomic) BOOL isBidirectional;
@property (readonly, nonatomic) id<MTLBuffer> keypoints;

+ (void)_computeScalingFactor:(id)a0 dst_tex:(id)a1 scale_xy_inv:(void *)a2 coeff:(float *)a3;

- (void)waitUntilCompleted;
- (void)reset;
- (void)dealloc;
- (void)setPreset:(long long)a0;
- (void).cxx_destruct;
- (int)_setupBuffer;
- (int)_computeFeaturesDerivativesWithCommandBuffer:(id)a0 in_tex:(id)a1 out_tex:(id)a2;
- (int)_computeFeaturesWithCommandBuffer:(id)a0 in_tex:(id)a1 out_tex:(id)a2;
- (int)_computeOpticalFlow;
- (int)_doNLRegularizationWithCommandBuffer:(id)a0 in_uv_tex:(id)a1 join_tex:(id)a2 w_tex:(id)a3 out_uv_tex:(id)a4;
- (int)_zeroFlowWithCommandBuffer:(id)a0 uv_tex:(id)a1;
- (int)estimateFlowFromReference:(struct __CVBuffer { } *)a0 target:(struct __CVBuffer { } *)a1;
- (void)_setDefaultParameters;
- (void)_setupPipelines;
- (int)_doSolverWithCommandBuffer:(id)a0 scale:(int)a1 in_uv_tex:(id)a2 in_G0_tex:(id)a3 in_G1_tex:(id)a4 in_C0_tex:(id)a5 in_C1_tex:(id)a6 out_uv_tex:(id)a7 out_w_tex:(id)a8;
- (int)_downscale2XWithCommandBuffer:(id)a0 in_tex:(id)a1 out_tex:(id)a2;
- (int)_enqueueFlowConsistencyWithCommandBuffer:(id)a0 in_uv0_tex:(id)a1 in_uv1_tex:(id)a2 out_uv_tex:(id)a3;
- (int)_enqueueKeypointsFromFlowWithCommandBuffer:(id)a0 in_uv_fwd_tex:(id)a1 in_uv_bwd_tex:(id)a2 out_kpt_buf:(id)a3 block_size:(int)a4 bidirectional_error:(float)a5 out_num_keypoints:(unsigned short *)a6;
- (int)_initMemory:(int)a0 height:(int)a1 nscales:(int)a2;
- (id)initWithMetalContext:(id)a0 width:(int)a1 height:(int)a2 nscales:(int)a3;
- (void)_computeICPThreadgroupsForDecimation:(unsigned long long)a0 threadsPerThreadgroupForUniform:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a1 threadsPerThreadgroupForPass1:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a2 threadgroupsPerGridForPass1:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a3;
- (int)_initMemoryICP:(int)a0;
- (int)_setupBufferICP;
- (struct { void /* unknown type, empty encoding */ x0[3]; })_parametricTransformToMatrix3x3;
- (int)_setupBufferLKT;
- (int)_computeActiveThreadgroupsWithCommandBuffer:(id)a0;
- (int)_computeFeaturesAndTGSumWithCommandBuffer:(id)a0 in_tex:(id)a1 out_tex:(id)a2;
- (int)_computeHomographyWithCommandBuffer:(id)a0 in_tex0:(id)a1 in_tex1:(id)a2 in_tex2:(id)a3 weight_tex:(id)a4 regularizer_term:(float)a5 decimation_factor:(unsigned long long)a6 scale:(unsigned long long)a7 nwarp:(unsigned long long)a8;
- (int)_computeICPResiduals:(id)a0 flow:(id)a1;
- (void)_computeICPThreadgroupsForActivation:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a0;
- (void)_computeICPThreadgroupsWithSize:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; })a0 computePipeline:(id)a1 threadsPerThreadgroup:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a2 threadgroupsPerGrid:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a3 debug_string:(char *)a4;
- (void)_computeICPThreadgroupsWithSize:(struct CGSize { double x0; double x1; })a0 threadsPerThreadgroupForPass1:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a1 threadgroupsPerGridForPass1:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a2 threadsPerThreadgroupForPass2:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a3 threadgroupsPerGridForPass2:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a4 threadsPerThreadgroupForPass3:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a5 threadgroupsPerGridForPass3:(struct { unsigned long long x0; unsigned long long x1; unsigned long long x2; } *)a6;
- (int)_computeICPWeights:(id)a0 weights:(id)a1 flow:(id)a2;
- (int)_computeOpticalFlowBidirectional;
- (void)_copyTransfromFromGPU;
- (void)_copyTransfromToGPU;
- (int)_createImagePyramidWithCommandBuffer:(id)a0 in_pixelbuf:(struct __CVBuffer { } *)a1 I_idx:(int)a2;
- (int)_getICPNWarp:(int)a0 scale:(int)a1;
- (int)_initICPWeightsWithCommandBuffer:(id)a0;
- (void)_matrix3x3ToParametricTransform:(struct { void /* unknown type, empty encoding */ x0[3]; })a0;
- (int)_panoRegistration:(struct { void /* unknown type, empty encoding */ x0[3]; })a0 metadata:(id)a1;
- (void)_resampleHomography:(id)a0 to:(id)a1;
- (void)_resampleTransform:(id)a0 to:(id)a1;
- (int)_resampleTransformWithCommandBuffer:(id)a0 from:(id)a1 to:(id)a2;
- (void)_resetLoss;
- (void)_setDefaultParametersICP;
- (void)_setICPRegularizerTerms:(id)a0;
- (void)_setParametricTransformFromGyro:(struct { void /* unknown type, empty encoding */ x0[3]; })a0;
- (int)_setupBufferDerivatives;
- (int)_setupBufferPyramids;
- (int)computeKeypointsFromForwardFlow:(struct __CVBuffer { } *)a0 backwardFlow:(struct __CVBuffer { } *)a1 bidirectionalError:(float)a2 blockSize:(int)a3 outNumKeypoints:(unsigned short *)a4;
- (int)estimateFlowStream:(struct __CVBuffer { } *)a0;
- (int)estimatePanoRegistration:(struct __CVBuffer { } *)a0 metadata:(id)a1 initTForm:(struct { void /* unknown type, empty encoding */ x0[3]; })a2;
- (int)getMaxNumberOfScales;
- (struct { void /* unknown type, empty encoding */ x0[3]; })getParametricTransform;
- (id)initWithMetalContext:(id)a0 ICPtransform:(long long)a1 width:(int)a2 height:(int)a3 nscales:(int)a4 flowUpperMostScale:(int)a5;
- (int)resetCurrentFrameIndex;
- (int)setICPWeights:(id)a0;
- (int)setOutputUV:(struct __CVBuffer { } *)a0;
- (int)setOutputUVForward:(struct __CVBuffer { } *)a0 backward:(struct __CVBuffer { } *)a1;
- (void)setPresetICP:(long long)a0 withRegularizerTerms:(id)a1 decimation_factor:(int)a2;

@end