scene/tables/curves.h
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // SPDX-License-Identifier: BSD-3-Clause | ||
| 2 | #pragma once | ||
| 3 | |||
| 4 | #include <algorithm> | ||
| 5 | #include <cstdint> | ||
| 6 | #include <deque> | ||
| 7 | #include <memory> | ||
| 8 | #include <optional> | ||
| 9 | #include <span> | ||
| 10 | #include <string> | ||
| 11 | #include <string_view> | ||
| 12 | #include <unordered_map> | ||
| 13 | #include <utility> | ||
| 14 | #include <vector> | ||
| 15 | |||
| 16 | #include "chrono_batch_render/algorithms/scan.h" | ||
| 17 | #include "chrono_batch_render/bvh/builder.h" | ||
| 18 | #include "chrono_batch_render/device/buffer.h" | ||
| 19 | #include "chrono_batch_render/device/operation.h" | ||
| 20 | #include "chrono_batch_render/device/program.h" | ||
| 21 | #include "chrono_batch_render/device/ref.h" | ||
| 22 | #include "chrono_batch_render/scene/records/curves.h" | ||
| 23 | #include "chrono_batch_render/scene/tables/procedural.h" | ||
| 24 | #include "chrono_batch_render/scene/tables/storage.h" | ||
| 25 | #include "chrono_batch_render/scene/tables/table.h" | ||
| 26 | #include "chrono_batch_render/stage/structure/structure.h" | ||
| 27 | |||
| 28 | namespace chrono::batch_render { | ||
| 29 | |||
| 30 | 357 | struct CurvesStats { | |
| 31 | uint32_t prims = 0; | ||
| 32 | uint32_t built = 0; | ||
| 33 | uint32_t refit = 0; | ||
| 34 | uint32_t points = 0; | ||
| 35 | uint32_t curves = 0; | ||
| 36 | uint32_t segments = 0; | ||
| 37 | uint32_t capacity = 0; | ||
| 38 | uint32_t readBacks = 0; | ||
| 39 | }; | ||
| 40 | |||
| 41 | inline constexpr const char* kShapeOptionsFile = | ||
| 42 | "chrono_batch_render/render/kernels/shapes/options.slang"; | ||
| 43 | |||
| 44 | class CurvesTable : public RenderTable { | ||
| 45 | public: | ||
| 46 | 357 | CurvesTable(Structure& structure, bvh::Builder& builder, uint32_t maxRefits = 16, | |
| 47 | float tolerance = kDefaultCurveTolerance, uint32_t maxSteps = kDefaultMaxCurveSteps, | ||
| 48 | bool exact = false) | ||
| 49 | 357 | : m_structure(structure), m_builder(builder), m_maxRefits(maxRefits), | |
| 50 | 357 | m_tolerance(tolerance), m_maxSteps(std::clamp(maxSteps, 1u, kMostCurveSteps)), | |
| 51 | 714 | m_exact(exact) {} | |
| 52 | |||
| 53 | ~CurvesTable() override; | ||
| 54 | |||
| 55 | 938 | std::string_view Name() const override { | |
| 56 | 938 | return "curves"; | |
| 57 | } | ||
| 58 | |||
| 59 | std::span<const ColumnRef> Inputs() const override; | ||
| 60 | std::span<const TableId> TableOutputs() const override; | ||
| 61 | void Describe(RenderTables& tables) const override; | ||
| 62 | void Prepare() override; | ||
| 63 | void Run(const ChangeSet& changes, TableVersions& versions) override; | ||
| 64 | void Hold(std::vector<Ref<const RefCounted>>& held) const override; | ||
| 65 | |||
| 66 | 8599 | bool Pending() const override { | |
| 67 | 8599 | return !m_pending.empty() && m_pending.front().download.Ready(); | |
| 68 | } | ||
| 69 | |||
| 70 | bool Exact() const { | ||
| 71 | return m_exact; | ||
| 72 | } | ||
| 73 | |||
| 74 | std::string ShapeOptions() const; | ||
| 75 | |||
| 76 | const CurvesStats& Stats() const { | ||
| 77 | return m_stats; | ||
| 78 | } | ||
| 79 | |||
| 80 | 3 | const CurvesRecord& Record(uint32_t curvesRow) const { | |
| 81 | 6 | return m_records.Row(curvesRow); | |
| 82 | } | ||
| 83 | |||
| 84 | std::vector<uint32_t> SpanSteps(uint32_t curvesRow) const; | ||
| 85 | |||
| 86 | private: | ||
| 87 | struct Prim { | ||
| 88 | uint32_t prim = kNoPrim; | ||
| 89 | uint32_t generation = 0; | ||
| 90 | uint32_t pointBasedRow = kNoRow; | ||
| 91 | uint32_t curvesRow = kNoRow; | ||
| 92 | uint32_t row = kNoRow; | ||
| 93 | uint32_t basisRow = kNoRow; | ||
| 94 | uint32_t kindRow = kNoRow; | ||
| 95 | uint32_t kind = kCurveKindBasis; | ||
| 96 | uint32_t count = 0; | ||
| 97 | uint32_t curveCount = 0; | ||
| 98 | uint32_t pointCapacity = 0; | ||
| 99 | uint32_t curveCapacity = 0; | ||
| 100 | uint32_t wanted = 0; | ||
| 101 | ProceduralBlas bvh; | ||
| 102 | Ref<device::Buffer> segments; | ||
| 103 | Ref<device::Buffer> spanFirst; | ||
| 104 | Ref<device::Buffer> spanSteps; | ||
| 105 | Ref<device::Buffer> starts; | ||
| 106 | Ref<device::Buffer> varyingStarts; | ||
| 107 | Ref<device::Buffer> knotStarts; | ||
| 108 | bool drawn = false; | ||
| 109 | bool update = false; | ||
| 110 | }; | ||
| 111 | |||
| 112 | void Place(uint32_t prim); | ||
| 113 | void Forget(uint32_t prim); | ||
| 114 | void Link(Prim& curves); | ||
| 115 | void Resize(Prim& curves, uint32_t segments); | ||
| 116 | void WriteRecord(Prim& curves); | ||
| 117 | void EnsureScratch(uint32_t items); | ||
| 118 | void Collect(); | ||
| 119 | void Build(std::vector<uint32_t>& updated); | ||
| 120 | device::Program& Kernels(); | ||
| 121 | |||
| 122 | Structure& m_structure; | ||
| 123 | bvh::Builder& m_builder; | ||
| 124 | uint32_t m_maxRefits; | ||
| 125 | float m_tolerance; | ||
| 126 | uint32_t m_maxSteps; | ||
| 127 | bool m_exact; | ||
| 128 | uint64_t m_seen = 0; | ||
| 129 | std::unique_ptr<algorithms::Scan> m_scan; | ||
| 130 | uint32_t m_scanCapacity = 0; | ||
| 131 | Ref<device::Buffer> m_counts; | ||
| 132 | Ref<device::Buffer> m_scanned; | ||
| 133 | Ref<device::Buffer> m_varying; | ||
| 134 | Ref<device::Buffer> m_scannedVarying; | ||
| 135 | Ref<device::Buffer> m_steps; | ||
| 136 | Ref<device::Buffer> m_stepFirst; | ||
| 137 | Ref<device::Buffer> m_orders; | ||
| 138 | Ref<device::Buffer> m_scannedOrders; | ||
| 139 | Ref<device::Program> m_program; | ||
| 140 | std::unordered_map<uint32_t, Prim> m_prims; | ||
| 141 | std::unordered_map<uint32_t, uint32_t> m_byPointBasedRow; | ||
| 142 | std::unordered_map<uint32_t, uint32_t> m_byCurvesRow; | ||
| 143 | std::unordered_map<uint32_t, uint32_t> m_byHermiteRow; | ||
| 144 | std::unordered_map<uint32_t, uint32_t> m_byNurbsRow; | ||
| 145 | RecordTable<CurvesRecord> m_records{"curves records"}; | ||
| 146 | std::vector<uint32_t> m_relinked; | ||
| 147 | |||
| 148 | struct PendingTotals { | ||
| 149 | device::Download download; | ||
| 150 | Ref<device::Buffer> totals; | ||
| 151 | std::vector<std::pair<uint32_t, uint32_t>> prims; | ||
| 152 | std::vector<bool> restepped; | ||
| 153 | }; | ||
| 154 | |||
| 155 | std::deque<PendingTotals> m_pending; | ||
| 156 | CurvesStats m_stats; | ||
| 157 | }; | ||
| 158 | |||
| 159 | } | ||
| 160 |