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50 most recent check-ins
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2026-09-10
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| 21:00 | feat: added polynomial evaluation feat: added least squares regression, arbitrary order note: incl. examples, unit tests Leaf check-in: f5b78fd450 user: aku tags: trunk | |
| 20:56 | feat: added matcher for lists of doubles note: nothing of the structural stuff for pixels check-in: 154d5ab1d4 user: aku tags: trunk | |
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2026-09-08
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| 20:40 | feat: added matrix inversion, by way of lapack, plus examples, tests teak: some internal comments check-in: bdaf098387 user: aku tags: trunk | |
| 19:00 | feat: more examples fix: bogus backtick in operator docs check-in: 935c36fa98 user: aku tags: trunk | |
| 18:59 | tweak: matrix emitter for examples, strip trailing zeroes in float mode check-in: 026b131641 user: aku tags: trunk | |
| 18:57 | tweak: added extended tracing to runtime error management check-in: 7095a07492 user: aku tags: trunk | |
| 18:56 | tweak: fixed code indentation check-in: db8fcaee1b user: aku tags: trunk | |
| 18:55 | fix: bogus fix (in commit [e435a6e6fd]) of parameter array/slice dumper check-in: 88a9635d38 user: aku tags: trunk | |
| 18:53 | fix: op cache setup, from commit [ffa201eae0] check-in: cbf3fef307 user: aku tags: trunk | |
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2026-09-02
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| 20:17 | feat: added matrix math, multiplication, naive implementation check-in: fcdae7136f user: aku tags: trunk | |
| 20:14 | fix: geometry query, domain is rectangle, want depth info check-in: d2712efb1b user: aku tags: trunk | |
| 20:13 | fix: typos (comment, varname) fix: missing trace setup. fix: superfluous % in output param array dumper check-in: e435a6e6fd user: aku tags: trunk | |
| 19:00 | fix: move debug block dump to after it is filled check-in: 73fddd5a39 user: aku tags: trunk | |
| 18:59 | feat: extended debug support, []double dumper check-in: 7888190eb8 user: aku tags: trunk | |
| 18:58 | refactor: moved core of `aktive op cache` into runtime and operator support code note: common cache setup into runtime support note: op::cache specifics into operator support check-in: ffa201eae0 user: aku tags: trunk | |
| 18:54 | chore: dsl op-spec doc tweaks fix: coment typo check-in: 1a12eb7849 user: aku tags: trunk | |
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2026-08-31
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| 21:37 | chore: slightly extended trace commands chore: simplify some geometry code with modern helpers check-in: 1a91de62d5 user: aku tags: trunk | |
| 21:34 | fix: issue in the new param array printer check-in: 03d1c8c7e1 user: aku tags: trunk | |
| 20:55 | fix: plain returns in `query values` mismatching the hidden TRACE_FUNC feat: added best-effort value printer for TRACE_RETURN's in query operators feat: extended param printing (debug tracing) with string and array support check-in: 959edecc60 user: aku tags: trunk | |
| 20:51 | feat: extended the profile examples to visualize the profiles as images check-in: 447362ab8c user: aku tags: trunk | |
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2026-08-30
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| 19:47 | fix: mishandling of non-origin images (from matrix, columns, rows) fix: mishandling of excess values (from matrix) fix: aktive_op_pixels, prevent fetch from overwriting the scan variable note: various extended tracing around the above chore: added examples, tests for non-origin images check-in: 85ed52b9dd user: aku tags: trunk | |
| 19:40 | tweak: code comments fix: formatting check-in: 8f6d5853bb user: aku tags: trunk | |
| 18:51 | tweak: documentation, and code comments check-in: bb8e3c2b86 user: aku tags: trunk | |
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2026-08-29
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| 21:59 | feat: switched `by column` reducers to the new framework for unrolled operation. note: this re-uses the `by-row` reducers. i.e. there are no special `by-column` functions. the region fetch already ensures that we have the proper in-memory layout. If we treat a row of W pixels with D bands as a row of 1 pixel with W*D bands. beware: reading the single-row statistic effectively materializes the selected columns of the input image in memory to then compute the reduction. the old code only materialized a single column as it iterated over them. beware: due to the W*D this easily drives the code into the (band > 4) case of the row reducer functions. look into possible alternatives to boost the performance of that case. note: the by band/row/column statistics are now mostly switched to the new framework. The row profiles still use the baseline, if wrapped, and the column profiles actually use a batch processor based on the ideas used for connected components. check-in: 51f25027ab user: aku tags: trunk | |
| 15:15 | note: removed old commentary check-in: 188162a68b user: aku tags: trunk | |
| 15:14 | tweak: some of the reduce ops feat: redone the templating used by the reducer generator. note: before - two separate pieces, the C code with simple placeholders (string mappable), and Tcl code mapping a reduce op to these placeholders, applied with `string map`. note: now - single piece of C code mixed with more complex placeholders (regexp, <<<...>>>) with arguments (key/value pairs). Generic extraction plus custom translation of the command with arguments into the proper C code, guided by the reduce op. chore: updated all def-func templates, added sourcing of the new generic mini processor where needed. check-in: 7267dc3a7e user: aku tags: trunk | |
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2026-08-27
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| 19:04 | feat: completed implementation of row reducers, testing, benchmarks, added to system note: added benchmark results, evaluation note: switched row reducers to generated code (`perdepth1`) check-in: 521850402f user: aku tags: trunk | |
| 19:01 | fix: band reduce chart setup, generation fix: band reduce test setup chore: removal of irrelevant code chore: switched to use of the new `placeholder` command check-in: 53467f0c96 user: aku tags: trunk | |
| 18:58 | fix: unwanted exclusion of baseline from benchmarks feat: added row reducer support to benchmark, testing chore: formatting of reducer ops, added debug setup for `sum` and `profile` feat: moved from `lappend map` to custom command `placeholdr for map setup fix: asline to remove superfluous spaces and tabs check-in: cf78e12a46 user: aku tags: trunk | |
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2026-08-25
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| 20:21 | chore: file reorg of reducer support, and band reducers note: `data/reduce` -> `support/reduce` note: fragment collection split into several files, sorted into a new dir hierarchy note: func template and setup of placeholders for same moved into single specification command - easier to match setup against the C code using them note: moved commands and state into namespace (analogous to vector math support) chore: updated users (tests, benchmarks, own codegen) check-in: 7ca3fdf0b5 user: aku tags: trunk | |
| 20:15 | chore: continued cleanup, rework note: vector math support moved into namespace for easier cleanup note: moved state from global to namespace as well note: added coge-gen helper commands (decl, def, linkage assembly) chore: updated users (tests, benchmarks, blit, own codegen) check-in: 3b46fa9198 user: aku tags: trunk | |
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2026-08-23
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| 20:20 | chore: file reorg, additional READMEs, update file users note: data/{colors,math} -> support/{colors,math} note: operator DSL -> support/ops chore: support/math rework note: state now hidden behind new def/query commands note: updates to handle the changed form of the state check-in: d828fd6837 user: aku tags: trunk | |
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2026-06-24
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| 16:40 | chore: reworked the publication of the 2025 talk. using pdf and zip. reason: the expanded form does not properly display when browsed to. feat: updated the thread coordination diagrams with nicer pikchr. check-in: af3710c68a user: aku tags: trunk | |
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2026-06-05
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| 19:42 | published 2025 presentation, tweaked location check-in: 91562c144a user: aku tags: trunk | |
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2026-06-03
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| 06:50 | feat: added 2025 eurotcl presentation. not yet integrated/published. check-in: c336c69f4e user: aku tags: trunk | |
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2026-02-10
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| 23:42 | chore: final renames, internal rewrites & fixes, some renames reverted because of the latter note: better structured fragment setup, and use (def, make) feat: initial changes for the row reducers, spec, fragments, generator, operator note: added reducers `profile` and `rprofile` note: consider making band comands for these check-in: 20139ce33f user: aku tags: trunk | |
| 17:42 | chore: more renames, plus some internal rewrites check-in: 460dce4aee user: aku tags: trunk | |
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2026-02-08
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| 22:12 | chore: renamed most reducer-related files to mention `band`, as they are about by-band reduction note: this prepares for the appearance of row and column reducers check-in: 0630960fcb user: aku tags: trunk | |
| 21:28 | feat: performance work on the by-band statistics feat: exposing the by-band reducer variants (baseline, bands unrolled, + pixels 4-unrolled) to testing and benchmarking note: testing cross-checks the implementations against each other for equality chore: updated the notes and plots for reduction performance note: benchmarking is slow because each iteration of the reducer is given a new random input. this broader sampling of the input space should make the average a better estimate of implementation performance check-in: b05421b92c user: aku tags: trunk | |
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2026-02-05
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| 21:34 | fix: typos in kahan test case names check-in: 53e3c91c17 user: aku tags: trunk | |
| 17:58 | feat: extended `from sparse points` with a `geometry` parameter, like is already supported by `from sparse ranges` note: added examples, extended and updated the testsuite check-in: 8d0c9c446c user: aku tags: trunk | |
| 16:45 | fix: path typo in template, was not updated by preceding work. check-in: 087ccf9b20 user: aku tags: trunk | |
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2025-12-04
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| 15:59 | feat: moved kahan summation (KS) to macros for inlining. chore: inlined KS at all users. chore: benchmarked new state, compared to pre-inline. note: inline is a boost for the reductions using the KS. next: unroll the pixel loops. check-in: 0e92d3c874 user: aku tags: trunk | |
| 13:22 | fix: issue in kahan summation (typo, `+` had to be `+=`). chore: added testing support for kahan summation. chore: added tests for kahan summation, vs plain. fix: broken existing tests, updated results. fix: broken example images in the docs. note: none of the changes were visually apparent. check-in: 84098c2508 user: aku tags: trunk | |
| 11:17 | fix: reducer definitions (finalize, reduce), first use of this code. feat: first boost for by-band statistics. note: fully unrolled inner loop (bands) for #bands <= 4. note: generic loop for #bands > 4, inlined actual code. todo: look into inlining the kahan summation. todo: look into unrolling the pixel loops. check-in: 36af8a2b88 user: aku tags: trunk | |
| 09:01 | fix: trace code missed in [ae6d6a67c9] (region sharing fix). note: had to be updated for the changes to the block regions. note: owner/reader instead of single region. check-in: 3c3a23dc17 user: aku tags: trunk | |
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2025-12-03
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| 20:12 | tweak: shuffled the various generators and helper files around for nicer structure. chore: updated all users to match the new paths. check-in: bcc5907141 user: aku tags: trunk | |
| 19:41 | feat: reducer code generation - foundations. feat: reducer code generation - baseline implementation, reuses existing functions. feat: redirected by-band reducers to the generated code. feat: benchmarking support for reducer. feat: benchmarks for reducer, and baseline results. check-in: cc95f55707 user: aku tags: trunk | |
| 13:40 | note: the easy by-band simplifications of arg max/min apply to rows and columns as well. chore: updated tests idoc: annotations about unroll possibilities for by-row/column stats check-in: 00545fb259 user: aku tags: trunk | |
| 13:10 | feat: stats by band - added easy simplifications for arg::max/min note: single-band image -> result is const 0 idoc: annotations about unroll possibilities for by-band stats idoc: thoughts about arg::<rel> simplification for single-band input idoc: looks to require extensions to the simplifer dsl idoc: multi-input rewrite, dag output check-in: 194ca87028 user: aku tags: trunk | |