apply_operation_internal()

template<ComputeData InputType = std::shared_ptr<Kakshya::SignalSourceContainer>, ComputeData OutputType = std::vector<Kakshya::DataVariant>>

output_type MayaFlux::Yantra::VisionExtractor< InputType, OutputType >::apply_operation_internal ( const input_type &  input, const ExecutionContext &  context  )

inlineoverrideprotectedvirtual

Internal execution method - ComputeMatrix can access this.

Parameters

input	Input data wrapped in IO
context	Execution context with mode, threading, etc.

Returns

Processed output

Reimplemented from MayaFlux::Yantra::ComputeOperation< InputType, OutputType >.

Definition at line 147 of file VisionExtractor.hpp.

    {
        if (this->m_gpu_backend && this->m_gpu_backend->ensure_gpu_ready()) {
            const auto analysis_it = input.metadata.find("vision_analysis");
            if (analysis_it != input.metadata.end() && analysis_it->second.has_value()) {
                const auto& analysis = safe_any_cast_or_throw<VisionAnalysis>(
                    analysis_it->second);
 
                auto [nx, ny, nw, nh] = compute_normalised_rect(analysis);
                const auto crop_w = static_cast<uint32_t>(
                    std::max(1.0F, std::round(nw * static_cast<float>(analysis.w))));
                const auto crop_h = static_cast<uint32_t>(
                    std::max(1.0F, std::round(nh * static_cast<float>(analysis.h))));
 
                auto* ctx = dynamic_cast<TextureExecutionContext*>(
                    this->m_gpu_backend.get());
                if (ctx) {
                    ctx->set_output_dimensions(crop_w, crop_h);
                    ctx->set_push_constants(
                        CropPC { nx, ny, nw, nh, crop_w, crop_h });
                }
            }
        }
 
        return UniversalExtractor<InputType, OutputType>::apply_operation_internal(input, context);
    }

References MayaFlux::Yantra::ComputeOperation< InputType, OutputType >::apply_operation_internal(), MayaFlux::Yantra::VisionExtractor< InputType, OutputType >::compute_normalised_rect(), input, MayaFlux::Yantra::ComputeOperation< InputType, OutputType >::m_gpu_backend, MayaFlux::Yantra::Datum< T >::metadata, and MayaFlux::Yantra::TextureExecutionContext::set_output_dimensions().

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