summaryrefslogtreecommitdiffstats
path: root/src/audio_core/splitter_context.cpp
blob: 79bb2f516db8cb2eae3b5c5163520603a86e33f0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#include "audio_core/behavior_info.h"
#include "audio_core/splitter_context.h"
#include "common/alignment.h"
#include "common/assert.h"
#include "common/logging/log.h"

namespace AudioCore {

ServerSplitterDestinationData::ServerSplitterDestinationData(s32 id) : id(id) {}
ServerSplitterDestinationData::~ServerSplitterDestinationData() = default;

void ServerSplitterDestinationData::Update(SplitterInfo::InDestinationParams& header) {
    // Log error as these are not actually failure states
    if (header.magic != SplitterMagic::DataHeader) {
        LOG_ERROR(Audio, "Splitter destination header is invalid!");
        return;
    }

    // Incorrect splitter id
    if (header.splitter_id != id) {
        LOG_ERROR(Audio, "Splitter destination ids do not match!");
        return;
    }

    mix_id = header.mix_id;
    // Copy our mix volumes
    std::copy(header.mix_volumes.begin(), header.mix_volumes.end(), current_mix_volumes.begin());
    if (!in_use && header.in_use) {
        // Update mix volumes
        std::copy(current_mix_volumes.begin(), current_mix_volumes.end(), last_mix_volumes.begin());
        needs_update = false;
    }
    in_use = header.in_use;
}

ServerSplitterDestinationData* ServerSplitterDestinationData::GetNextDestination() {
    return next;
}

const ServerSplitterDestinationData* ServerSplitterDestinationData::GetNextDestination() const {
    return next;
}

void ServerSplitterDestinationData::SetNextDestination(ServerSplitterDestinationData* dest) {
    next = dest;
}

bool ServerSplitterDestinationData::ValidMixId() const {
    return GetMixId() != AudioCommon::NO_MIX;
}

s32 ServerSplitterDestinationData::GetMixId() const {
    return mix_id;
}

bool ServerSplitterDestinationData::IsConfigured() const {
    return in_use && ValidMixId();
}

float ServerSplitterDestinationData::GetMixVolume(std::size_t i) const {
    ASSERT(i < AudioCommon::MAX_MIX_BUFFERS);
    return current_mix_volumes.at(i);
}

const std::array<float, AudioCommon::MAX_MIX_BUFFERS>&
ServerSplitterDestinationData::CurrentMixVolumes() const {
    return current_mix_volumes;
}

const std::array<float, AudioCommon::MAX_MIX_BUFFERS>&
ServerSplitterDestinationData::LastMixVolumes() const {
    return last_mix_volumes;
}

void ServerSplitterDestinationData::MarkDirty() {
    needs_update = true;
}

void ServerSplitterDestinationData::UpdateInternalState() {
    if (in_use && needs_update) {
        std::copy(current_mix_volumes.begin(), current_mix_volumes.end(), last_mix_volumes.begin());
    }
    needs_update = false;
}

ServerSplitterInfo::ServerSplitterInfo(s32 id) : id(id) {}
ServerSplitterInfo::~ServerSplitterInfo() = default;

void ServerSplitterInfo::InitializeInfos() {
    send_length = 0;
    head = nullptr;
    new_connection = true;
}

void ServerSplitterInfo::ClearNewConnectionFlag() {
    new_connection = false;
}

std::size_t ServerSplitterInfo::Update(SplitterInfo::InInfoPrams& header) {
    if (header.send_id != id) {
        return 0;
    }

    sample_rate = header.sample_rate;
    new_connection = true;
    // We need to update the size here due to the splitter bug being present and providing an
    // incorrect size. We're suppose to also update the header here but we just ignore and continue
    return (sizeof(s32_le) * (header.length - 1)) + (sizeof(s32_le) * 3);
}

ServerSplitterDestinationData* ServerSplitterInfo::GetHead() {
    return head;
}

const ServerSplitterDestinationData* ServerSplitterInfo::GetHead() const {
    return head;
}

ServerSplitterDestinationData* ServerSplitterInfo::GetData(std::size_t depth) {
    auto current_head = head;
    for (std::size_t i = 0; i < depth; i++) {
        if (current_head == nullptr) {
            return nullptr;
        }
        current_head = current_head->GetNextDestination();
    }
    return current_head;
}

const ServerSplitterDestinationData* ServerSplitterInfo::GetData(std::size_t depth) const {
    auto current_head = head;
    for (std::size_t i = 0; i < depth; i++) {
        if (current_head == nullptr) {
            return nullptr;
        }
        current_head = current_head->GetNextDestination();
    }
    return current_head;
}

bool ServerSplitterInfo::HasNewConnection() const {
    return new_connection;
}

s32 ServerSplitterInfo::GetLength() const {
    return send_length;
}

void ServerSplitterInfo::SetHead(ServerSplitterDestinationData* new_head) {
    head = new_head;
}

void ServerSplitterInfo::SetHeadDepth(s32 length) {
    send_length = length;
}

SplitterContext::SplitterContext() = default;
SplitterContext::~SplitterContext() = default;

void SplitterContext::Initialize(BehaviorInfo& behavior_info, std::size_t _info_count,
                                 std::size_t _data_count) {
    if (!behavior_info.IsSplitterSupported() || _data_count == 0 || _info_count == 0) {
        Setup(0, 0, false);
        return;
    }
    // Only initialize if we're using splitters
    Setup(_info_count, _data_count, behavior_info.IsSplitterBugFixed());
}

bool SplitterContext::Update(const std::vector<u8>& input, std::size_t& input_offset,
                             std::size_t& bytes_read) {
    const auto UpdateOffsets = [&](std::size_t read) {
        input_offset += read;
        bytes_read += read;
    };

    if (info_count == 0 || data_count == 0) {
        bytes_read = 0;
        return true;
    }

    if (!AudioCommon::CanConsumeBuffer(input.size(), input_offset,
                                       sizeof(SplitterInfo::InHeader))) {
        LOG_ERROR(Audio, "Buffer is an invalid size!");
        return false;
    }
    SplitterInfo::InHeader header{};
    std::memcpy(&header, input.data() + input_offset, sizeof(SplitterInfo::InHeader));
    UpdateOffsets(sizeof(SplitterInfo::InHeader));

    if (header.magic != SplitterMagic::SplitterHeader) {
        LOG_ERROR(Audio, "Invalid header magic! Expecting {:X} but got {:X}",
                  SplitterMagic::SplitterHeader, header.magic);
        return false;
    }

    // Clear all connections
    for (auto& info : infos) {
        info.ClearNewConnectionFlag();
    }

    UpdateInfo(input, input_offset, bytes_read, header.info_count);
    UpdateData(input, input_offset, bytes_read, header.data_count);
    const auto aligned_bytes_read = Common::AlignUp(bytes_read, 16);
    input_offset += aligned_bytes_read - bytes_read;
    bytes_read = aligned_bytes_read;
    return true;
}

bool SplitterContext::UsingSplitter() const {
    return info_count > 0 && data_count > 0;
}

ServerSplitterInfo& SplitterContext::GetInfo(std::size_t i) {
    ASSERT(i < info_count);
    return infos.at(i);
}

const ServerSplitterInfo& SplitterContext::GetInfo(std::size_t i) const {
    ASSERT(i < info_count);
    return infos.at(i);
}

ServerSplitterDestinationData& SplitterContext::GetData(std::size_t i) {
    ASSERT(i < data_count);
    return datas.at(i);
}

const ServerSplitterDestinationData& SplitterContext::GetData(std::size_t i) const {
    ASSERT(i < data_count);
    return datas.at(i);
}

ServerSplitterDestinationData* SplitterContext::GetDestinationData(std::size_t info,
                                                                   std::size_t data) {
    ASSERT(info < info_count);
    auto& cur_info = GetInfo(info);
    return cur_info.GetData(data);
}

const ServerSplitterDestinationData* SplitterContext::GetDestinationData(std::size_t info,
                                                                         std::size_t data) const {
    ASSERT(info < info_count);
    auto& cur_info = GetInfo(info);
    return cur_info.GetData(data);
}

void SplitterContext::UpdateInternalState() {
    if (data_count == 0) {
        return;
    }

    for (auto& data : datas) {
        data.UpdateInternalState();
    }
}

std::size_t SplitterContext::GetInfoCount() const {
    return info_count;
}

std::size_t SplitterContext::GetDataCount() const {
    return data_count;
}

void SplitterContext::Setup(std::size_t _info_count, std::size_t _data_count,
                            bool is_splitter_bug_fixed) {

    info_count = _info_count;
    data_count = _data_count;

    for (std::size_t i = 0; i < info_count; i++) {
        auto& splitter = infos.emplace_back(static_cast<s32>(i));
        splitter.InitializeInfos();
    }
    for (std::size_t i = 0; i < data_count; i++) {
        datas.emplace_back(static_cast<s32>(i));
    }

    bug_fixed = is_splitter_bug_fixed;
}

bool SplitterContext::UpdateInfo(const std::vector<u8>& input, std::size_t& input_offset,
                                 std::size_t& bytes_read, s32 in_splitter_count) {
    const auto UpdateOffsets = [&](std::size_t read) {
        input_offset += read;
        bytes_read += read;
    };

    for (s32 i = 0; i < in_splitter_count; i++) {
        if (!AudioCommon::CanConsumeBuffer(input.size(), input_offset,
                                           sizeof(SplitterInfo::InInfoPrams))) {
            LOG_ERROR(Audio, "Buffer is an invalid size!");
            return false;
        }
        SplitterInfo::InInfoPrams header{};
        std::memcpy(&header, input.data() + input_offset, sizeof(SplitterInfo::InInfoPrams));

        // Logged as warning as these don't actually cause a bailout for some reason
        if (header.magic != SplitterMagic::InfoHeader) {
            LOG_ERROR(Audio, "Bad splitter data header");
            break;
        }

        if (header.send_id < 0 || header.send_id > info_count) {
            LOG_ERROR(Audio, "Bad splitter data id");
            break;
        }

        UpdateOffsets(sizeof(SplitterInfo::InInfoPrams));
        auto& info = GetInfo(header.send_id);
        if (!RecomposeDestination(info, header, input, input_offset)) {
            LOG_ERROR(Audio, "Failed to recompose destination for splitter!");
            return false;
        }
        const std::size_t read = info.Update(header);
        bytes_read += read;
        input_offset += read;
    }
    return true;
}

bool SplitterContext::UpdateData(const std::vector<u8>& input, std::size_t& input_offset,
                                 std::size_t& bytes_read, s32 in_data_count) {
    const auto UpdateOffsets = [&](std::size_t read) {
        input_offset += read;
        bytes_read += read;
    };

    for (s32 i = 0; i < in_data_count; i++) {
        if (!AudioCommon::CanConsumeBuffer(input.size(), input_offset,
                                           sizeof(SplitterInfo::InDestinationParams))) {
            LOG_ERROR(Audio, "Buffer is an invalid size!");
            return false;
        }
        SplitterInfo::InDestinationParams header{};
        std::memcpy(&header, input.data() + input_offset,
                    sizeof(SplitterInfo::InDestinationParams));
        UpdateOffsets(sizeof(SplitterInfo::InDestinationParams));

        // Logged as warning as these don't actually cause a bailout for some reason
        if (header.magic != SplitterMagic::DataHeader) {
            LOG_ERROR(Audio, "Bad splitter data header");
            break;
        }

        if (header.splitter_id < 0 || header.splitter_id > data_count) {
            LOG_ERROR(Audio, "Bad splitter data id");
            break;
        }
        GetData(header.splitter_id).Update(header);
    }
    return true;
}

bool SplitterContext::RecomposeDestination(ServerSplitterInfo& info,
                                           SplitterInfo::InInfoPrams& header,
                                           const std::vector<u8>& input,
                                           const std::size_t& input_offset) {
    // Clear our current destinations
    auto* current_head = info.GetHead();
    while (current_head != nullptr) {
        auto next_head = current_head->GetNextDestination();
        current_head->SetNextDestination(nullptr);
        current_head = next_head;
    }
    info.SetHead(nullptr);

    s32 size = header.length;
    // If the splitter bug is present, calculate fixed size
    if (!bug_fixed) {
        if (info_count > 0) {
            const auto factor = data_count / info_count;
            size = std::min(header.length, static_cast<s32>(factor));
        } else {
            size = 0;
        }
    }

    if (size < 1) {
        LOG_ERROR(Audio, "Invalid splitter info size! size={:X}", size);
        return true;
    }

    auto* start_head = &GetData(header.resource_id_base);
    current_head = start_head;
    std::vector<s32_le> resource_ids(size - 1);
    if (!AudioCommon::CanConsumeBuffer(input.size(), input_offset,
                                       resource_ids.size() * sizeof(s32_le))) {
        LOG_ERROR(Audio, "Buffer is an invalid size!");
        return false;
    }
    std::memcpy(resource_ids.data(), input.data() + input_offset,
                resource_ids.size() * sizeof(s32_le));

    for (auto resource_id : resource_ids) {
        auto* head = &GetData(resource_id);
        current_head->SetNextDestination(head);
        current_head = head;
    }

    info.SetHead(start_head);
    info.SetHeadDepth(size);

    return true;
}

NodeStates::NodeStates() = default;
NodeStates::~NodeStates() = default;

void NodeStates::Initialize(std::size_t node_count_) {
    // Setup our work parameters
    node_count = node_count_;
    was_node_found.resize(node_count);
    was_node_completed.resize(node_count);
    index_list.resize(node_count);
    index_stack.Reset(node_count * node_count);
}

bool NodeStates::Tsort(EdgeMatrix& edge_matrix) {
    return DepthFirstSearch(edge_matrix);
}

std::size_t NodeStates::GetIndexPos() const {
    return index_pos;
}

const std::vector<s32>& NodeStates::GetIndexList() const {
    return index_list;
}

void NodeStates::PushTsortResult(s32 index) {
    ASSERT(index < node_count);
    index_list[index_pos++] = index;
}

bool NodeStates::DepthFirstSearch(EdgeMatrix& edge_matrix) {
    ResetState();
    for (std::size_t i = 0; i < node_count; i++) {
        const auto node_id = static_cast<s32>(i);

        // If we don't have a state, send to our index stack for work
        if (GetState(i) == NodeStates::State::NoState) {
            index_stack.push(node_id);
        }

        // While we have work to do in our stack
        while (index_stack.Count() > 0) {
            // Get the current node
            const auto current_stack_index = index_stack.top();
            // Check if we've seen the node yet
            const auto index_state = GetState(current_stack_index);
            if (index_state == NodeStates::State::NoState) {
                // Mark the node as seen
                UpdateState(NodeStates::State::InFound, current_stack_index);
            } else if (index_state == NodeStates::State::InFound) {
                // We've seen this node before, mark it as completed
                UpdateState(NodeStates::State::InCompleted, current_stack_index);
                // Update our index list
                PushTsortResult(current_stack_index);
                // Pop the stack
                index_stack.pop();
                continue;
            } else if (index_state == NodeStates::State::InCompleted) {
                // If our node is already sorted, clear it
                index_stack.pop();
                continue;
            }

            const auto node_count = edge_matrix.GetNodeCount();
            for (s32 j = 0; j < static_cast<s32>(node_count); j++) {
                // Check if our node is connected to our edge matrix
                if (!edge_matrix.Connected(current_stack_index, j)) {
                    continue;
                }

                // Check if our node exists
                const auto node_state = GetState(j);
                if (node_state == NodeStates::State::NoState) {
                    // Add more work
                    index_stack.push(j);
                } else if (node_state == NodeStates::State::InFound) {
                    UNREACHABLE_MSG("Node start marked as found");
                    ResetState();
                    return false;
                }
            }
        }
    }
    return true;
}

void NodeStates::ResetState() {
    // Reset to the start of our index stack
    index_pos = 0;
    for (std::size_t i = 0; i < node_count; i++) {
        // Mark all nodes as not found
        was_node_found[i] = false;
        // Mark all nodes as uncompleted
        was_node_completed[i] = false;
        // Mark all indexes as invalid
        index_list[i] = -1;
    }
}

void NodeStates::UpdateState(NodeStates::State state, std::size_t i) {
    switch (state) {
    case NodeStates::State::NoState:
        was_node_found[i] = false;
        was_node_completed[i] = false;
        break;
    case NodeStates::State::InFound:
        was_node_found[i] = true;
        was_node_completed[i] = false;
        break;
    case NodeStates::State::InCompleted:
        was_node_found[i] = false;
        was_node_completed[i] = true;
        break;
    }
}

NodeStates::State NodeStates::GetState(std::size_t i) {
    ASSERT(i < node_count);
    if (was_node_found[i]) {
        // If our node exists in our found list
        return NodeStates::State::InFound;
    } else if (was_node_completed[i]) {
        // If node is in the completed list
        return NodeStates::State::InCompleted;
    } else {
        // If in neither
        return NodeStates::State::NoState;
    }
}

NodeStates::Stack::Stack() = default;
NodeStates::Stack::~Stack() = default;

void NodeStates::Stack::Reset(std::size_t size) {
    // Mark our stack as empty
    stack.resize(size);
    stack_size = size;
    stack_pos = 0;
    std::fill(stack.begin(), stack.end(), 0);
}

void NodeStates::Stack::push(s32 val) {
    ASSERT(stack_pos < stack_size);
    stack[stack_pos++] = val;
}

std::size_t NodeStates::Stack::Count() const {
    return stack_pos;
}

s32 NodeStates::Stack::top() const {
    ASSERT(stack_pos > 0);
    return stack[stack_pos - 1];
}

s32 NodeStates::Stack::pop() {
    ASSERT(stack_pos > 0);
    stack_pos--;
    return stack[stack_pos];
}

EdgeMatrix::EdgeMatrix() = default;
EdgeMatrix::~EdgeMatrix() = default;

void EdgeMatrix::Initialize(std::size_t _node_count) {
    node_count = _node_count;
    edge_matrix.resize(node_count * node_count);
}

bool EdgeMatrix::Connected(s32 a, s32 b) {
    return GetState(a, b);
}

void EdgeMatrix::Connect(s32 a, s32 b) {
    SetState(a, b, true);
}

void EdgeMatrix::Disconnect(s32 a, s32 b) {
    SetState(a, b, false);
}

void EdgeMatrix::RemoveEdges(s32 edge) {
    for (std::size_t i = 0; i < node_count; i++) {
        SetState(edge, static_cast<s32>(i), false);
    }
}

std::size_t EdgeMatrix::GetNodeCount() const {
    return node_count;
}

void EdgeMatrix::SetState(s32 a, s32 b, bool state) {
    ASSERT(InRange(a, b));
    edge_matrix.at(a * node_count + b) = state;
}

bool EdgeMatrix::GetState(s32 a, s32 b) {
    ASSERT(InRange(a, b));
    return edge_matrix.at(a * node_count + b);
}

bool EdgeMatrix::InRange(s32 a, s32 b) const {
    const std::size_t pos = a * node_count + b;
    return pos < (node_count * node_count);
}

} // namespace AudioCore