mirror of https://github.com/google/gemma.cpp.git
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
#include <pybind11/numpy.h>
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#include <pybind11/pybind11.h>
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#include <pybind11/stl.h>
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#include <stdexcept>
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#include <string>
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#include "absl/types/span.h"
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#include "compression/python/compression_clif_aux.h"
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#include "compression/shared.h"
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using gcpp::CompressorMode;
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using gcpp::SbsWriter;
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namespace py = pybind11;
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namespace {
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template <auto Func>
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void wrap_span(SbsWriter& writer, std::string name, py::array_t<float> data) {
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if (data.ndim() != 1 || data.strides(0) != sizeof(float)) {
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throw std::domain_error("Input array must be 1D and densely packed.");
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}
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std::invoke(Func, writer, name, absl::MakeSpan(data.data(0), data.size()));
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}
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template <auto Func>
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void wrap_span_typed(SbsWriter& writer, std::string name,
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py::array_t<float> data, gcpp::Type type,
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gcpp::TensorInfo tensor_info, float scale) {
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if (data.ndim() != 1 || data.strides(0) != sizeof(float)) {
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throw std::domain_error("Input array must be 1D and densely packed.");
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}
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std::invoke(Func, writer, name, absl::MakeSpan(data.data(0), data.size()),
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type, tensor_info, scale);
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}
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} // namespace
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PYBIND11_MODULE(compression, m) {
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py::enum_<CompressorMode>(m, "CompressorMode")
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.value("TEST_ONLY", CompressorMode::kTEST_ONLY)
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.value("NO_TOC", CompressorMode::kNO_TOC)
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.value("WITH_TOC", CompressorMode::kWITH_TOC);
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py::class_<SbsWriter>(m, "SbsWriter")
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.def(py::init<CompressorMode>())
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// NOTE: Individual compression backends may impose constraints on the
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// array length, such as a minimum of (say) 32 elements.
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.def("insert", wrap_span_typed<&SbsWriter::Insert>)
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.def("insert_sfp", wrap_span<&SbsWriter::InsertSfp>)
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.def("insert_nuq", wrap_span<&SbsWriter::InsertNUQ>)
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.def("insert_bf16", wrap_span<&SbsWriter::InsertBfloat16>)
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.def("insert_float", wrap_span<&SbsWriter::InsertFloat>)
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.def("add_scales", &SbsWriter::AddScales)
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.def("add_tokenizer", &SbsWriter::AddTokenizer)
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.def("debug_num_blobs_added", &SbsWriter::DebugNumBlobsAdded)
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.def("write", &SbsWriter::Write)
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.def("write_with_config", &SbsWriter::WriteWithConfig);
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}
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