The open source OpenXR runtime
a/math: Replace RH_DEBUG for relation history with better use of logging macros
authored by
Ryan Pavlik
and committed by
Jakob Bornecrantz
01e3d987
27550ffa
+7
-13
+7
-13
src/xrt/auxiliary/math/m_relation_history.cpp
+7
-13
src/xrt/auxiliary/math/m_relation_history.cpp
···
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#define leng 4096
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#define power2 12
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#undef RH_DEBUG
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struct m_relation_history
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{
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int64_t diff_prediction_ns = 0;
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diff_prediction_ns = at_timestamp_ns - newest_in_buffer;
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double delta_s = time_ns_to_s(diff_prediction_ns);
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#ifdef RH_DEBUG
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U_LOG_E("Extrapolating %f s after the head of the buffer!", delta_s);
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#endif
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U_LOG_T("Extrapolating %f s after the head of the buffer!", delta_s);
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m_predict_relation(&rh->impl[0]->relation, delta_s, out_relation);
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goto end;
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···
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int64_t diff_prediction_ns = 0;
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diff_prediction_ns = at_timestamp_ns - oldest_in_buffer;
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double delta_s = time_ns_to_s(diff_prediction_ns);
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#ifdef RH_DEBUG
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U_LOG_E("Extrapolating %f s before the tail of the buffer!", delta_s);
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#endif
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U_LOG_T("Extrapolating %f s before the tail of the buffer!", delta_s);
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m_predict_relation(&rh->impl[rh->impl.length() - 1]->relation, delta_s, out_relation);
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goto end;
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}
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#ifdef RH_DEBUG
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U_LOG_E("Interpolating within buffer!");
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#endif
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U_LOG_T("Interpolating within buffer!");
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#if 0
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// Very slow - O(n) - but easier to read
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int idx = 0;
···
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break;
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}
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}
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U_LOG_E("Correct answer is %i", idx);
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U_LOG_T("Correct answer is %i", idx);
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#else
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// Fast - O(log(n)) - but hard to read
···
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// different place for each power). Bit-shift it and it either doubles or halves. In our case it
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// halves. step should always be equivalent to pow(2,i). If it's not that's very very bad.
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step = step >> 1;
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#ifdef RH_DEBUG
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assert(step == (int)pow(2, i));
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#endif
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if (idx >= rh->impl.length()) {
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// We'd be looking at an uninitialized value. Go back closer to the head of the buffer.