feat: add model reshape support to high-level API #182
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Implements five methods in the Model struct to enable model reshaping after loading, which is required for dynamic batching and changing input image resolutions. Changes: - Added Model::reshape, reshape_single_input, reshape_input_by_name, reshape_by_port_indexes, and reshape_by_ports. - Updated PartialShape internals to pub(crate) to allow Model to access the underlying C struct for FFI calls. - Added Node::as_ptr() helper to expose the internal port pointer. - Added a new integration test suite (tests/reshape.rs) using the AlexNet fixture to verify the FFI bridge logic. This bridges the gap between the low-level sys crate and the ergonomic high-level API. Signed-off-by: khengari77 <[email protected]>
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Description
This PR implements high-level, safe Rust bindings for the OpenVINO model reshape functionality. Currently, the
openvinocrate lacks a way to reshape models after they are loaded, which is a prerequisite for use cases involving dynamic batching or variable image resolutions.This contribution bridges the gap between the low-level
openvino-sysFFI and the ergonomicopenvinocrate by adding five core reshape methods to theModelstruct.Related Issue
Closes #181
Changes
crates/openvino/src/model.rs:reshape: Enables name-to-PartialShapemapping for multi-input models.reshape_single_input: An ergonomic helper for the common single-input model use case.reshape_input_by_name: Targets a specific input port by its name string.reshape_by_port_indexes: Enables index-based reshaping.reshape_by_ports: EnablesNode/Port-based reshaping.crates/openvino/src/partial_shape.rs:c_structtopub(crate). This allows themodelmodule to pass the underlyingov_partial_shape_tto FFI calls while keeping it hidden from the end-user.crates/openvino/src/node.rs:pub(crate) fn as_ptr()helper to expose the internalov_output_const_port_tpointer required forov_model_reshape_by_ports.crates/openvino/tests/reshape.rs:alexnetfixture to verify that all five reshape variants correctly communicate with the OpenVINO C++ runtime and that model state updates correctly (includingis_dynamicchecks).Testing and Compliance
cargo test -p openvino --test reshapecargo fmt --all