Speed-up: pass PJ_COORD by reference for fwd4d and inv4d callbacks #3503
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The dynamic_cast<> introduced in 718e074 (was also backported in 9.1.1) can be a performance killer for pipelines that are not very computational heavy. Before this fix: ``` $ bin/bench_proj_trans --pipeline "+proj=pipeline +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=merc" 2 49 2 49 -> 222638.981586547 6242595.99979511 Duration: 877 ms Throughput: 5.70 million coordinates/s $ bin/bench_proj_trans --pipeline "+proj=pipeline +step +proj=unitconvert +xy_in=deg +xy_out=rad" 2 49 2 49 -> 0.0349065850398866 0.855211333477221 Duration: 276 ms Throughput: 18.12 million coordinates/s ``` After this fix: ``` $ bin/bench_proj_trans --pipeline "+proj=pipeline +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=merc" 2 49 2 49 -> 222638.981586547 6242595.99979511 Duration: 739 ms Throughput: 6.77 million coordinates/s $ bin/bench_proj_trans --pipeline "+proj=pipeline +step +proj=unitconvert +xy_in=deg +xy_out=rad" 2 49 2 49 -> 0.0349065850398866 0.855211333477221 Duration: 146 ms Throughput: 34.25 million coordinates/s ```
…em directly in pipeline_forward/inverse_4d()
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(On top of #3502)
Before this PR:
With this PR: