Martino Ferrari
38ef459897
Breaking: Series::gather emits x relative to x0() and takes a GatherMode; consumers reconstruct absolute x in f64 before mapping (series.hpp documents the contract). Bugs, each pinned by a fail-before regression test: - render: f32 staging quantised epoch-time x into 128 px columns; every data-space draw now stages to_space(x) - to_space(origin) with the origin folded into the offset uniform in f64 (epoch/zero-origin twins rasterise identically) - ticks: major test was ULP-fragile and blanked epoch axes; majors are an integer-index test and are never truncated by the minor cap - gather: LOD envelope emitted buckets straddling [begin,end); ceil/floor bucket edges + raw lead/trail spans - live follow: log x axes held a linear span and zoomed every frame; span and offset now live in axis space (plot + both figure link-group paths) - input: a zero-notch wheel disarmed auto_scale on every axis; dy==0 pans x, factor == 1 / inf refused in wheel and drag zoom - render: the single text flush painted legend names over the crosshair readout panel; two batches, under flushed before the panel - data: NaN dropped from min/max unless it seeded the fold; non-finite samples are now excluded from every aggregate and from cached bounds Robustness: viewport normalisation (no clamp UB), non-finite range refusal, pyramid level cap at 57 (no shift/div UB through public gather), rounded ring capacity documented + pre-sized, GL blend func and UNPACK_ALIGNMENT save/restore, Renderer::release_gl() teardown, u64 buffer epochs, annotation captions clamped, button-aware GLFW row capture, cached figure row rects (no per-event layout), ruler-pair measurement refused, span-nonfinite guards in axis_ends. Features: XY series (sorted x, binary-search neighbours/snap, LOD over sample index); StreamSeries::freeze(); ArraySeries::push(); per-trace dash and markers (scatter at width 0) with auto or literal stride; GatherMode Envelope/Nearest/Mean via bucket_sum/sumsq; Style::line_aa_px; per-glyph text colour (readout values in trace colour); wheel-dx x pan; arrow-key pan; Escape cancels a drag and restores captured ranges; modifier-masked box zoom (Shift both, Ctrl x, Alt y); double-click reset via PointerEvent::time_s; ImGui key repeat unified; pinch gestures on Qt and GTK; pixelDelta wheel path and DevicePixelRatioChange handling; GNUInstallDirs, SOVERSION, SameMinorVersion, generated plot/version.hpp, relocatable plot.pc, licence install, FILES_MATCHING, GitHub Actions CI (debug/coverage/asan). Suite 283 -> 350 cases, 0 failed; coverage 93.9% (3730/3971) over 24 files, floor 80/90 held; ASAN preset suite green; all four demos run headless (the GTK scripted-resize check needs a window manager and fails identically on the parent commit); readme_main.cpp committed and compiles with the README command; pkg-config and find_package consumption verified from a relocated install prefix.
38 lines
1.4 KiB
C++
38 lines
1.4 KiB
C++
// SPDX-License-Identifier: MIT
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// SPDX-FileCopyrightText: 2026 Martino Ferrari
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#include "harness.hpp"
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#include <plot/data/ring_buffer.hpp>
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PLOT_TEST(ring_wraps_and_keeps_latest) {
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plot::data::RingBuffer<f32> r(8); // capacity rounded up to a power of two
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for (int i = 0; i < 20; ++i) r.push(f32(i));
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PLOT_CHECK(r.size() == 8);
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PLOT_CHECK_NEAR(r[0], 12.0); // oldest retained
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PLOT_CHECK_NEAR(r[7], 19.0); // newest
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}
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PLOT_TEST(ring_clear_resets) {
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plot::data::RingBuffer<f32> r(8);
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for (int i = 0; i < 5; ++i) r.push(f32(i));
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r.clear();
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PLOT_CHECK(r.size() == 0);
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r.push(42.0f);
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PLOT_CHECK(r.size() == 1);
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PLOT_CHECK_NEAR(r[0], 42.0);
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}
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PLOT_TEST(ring_capacity_rounds_up_to_a_power_of_two) {
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// The capacity is rounded up so slot addressing stays a mask, and capacity()
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// reports the rounded value -- the one callers must size for (R4).
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PLOT_CHECK(plot::data::RingBuffer<f32>(100).capacity() == 128);
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PLOT_CHECK(plot::data::RingBuffer<f32>(1).capacity() == 1);
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PLOT_CHECK(plot::data::RingBuffer<f32>(0).capacity() == 1);
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PLOT_CHECK(plot::data::RingBuffer<f32>(64).capacity() == 64); // already a power
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plot::data::RingBuffer<f32> r(100);
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for (int i = 0; i < 1000; ++i) r.push(f32(i));
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PLOT_CHECK(r.size() == 128); // size() saturates at the rounded capacity
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PLOT_CHECK_NEAR(r[0], 872.0); // oldest retained
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PLOT_CHECK_NEAR(r[127], 999.0); // newest
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}
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