SharpMod/SharpMod.PlayerGUI/SharpMod.PlayerGUI/MainForm.cs at master · morphx666/SharpMod · GitHub

History

748 lines (656 loc) · 33.6 KB

Raw

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

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

716

717

718

719

720

721

722

723

724

725

726

727

728

729

730

731

732

733

734

735

736

737

738

739

740

741

742

743

744

745

746

747

748

using Eto.Drawing;

using Eto.Forms;

using OpenTK.Audio.OpenAL;

using SharpMod;

using System;

using System.IO;

using System.Linq;

using System.Threading.Tasks;

namespace SharpModPlayerGUI {

public partial class MainForm : Form {

protected Drawable Canvas;

private int alSrc;

private SoundFile sndFile;

private readonly Pen oWfPenL = new(Color.FromArgb(0, 115, 170));

private readonly Pen oWfPenR = new(Color.FromArgb(0, 115, 170));

private readonly Pen cWfPen = new(Color.FromArgb(0xff, 0xa5, 0x00, 128)); // orange with alpha

private readonly SolidBrush progressBrush = new(Color.FromArgb(0, 115, 170));

private readonly SolidBrush[][] bkColor = [[new(Color.FromArgb(48, 48, 48)), new(Color.FromArgb(98, 98, 98))], // active

[new(Color.FromArgb(42, 42, 42)), new(Color.FromArgb(42, 42, 42))] // inactive

];

private readonly SolidBrush[] cColor = [new(Colors.DimGray), // inactive

new(Colors.DarkCyan), // note

new(Colors.DarkKhaki), // instrument

new(Colors.DarkGreen), // volume

new(Colors.DarkOrange), // effect

];

private readonly SolidBrush scrollTrackBrush = new(Color.FromArgb(28, 28, 28));

private readonly SolidBrush scrollThumbBrush = new(Color.FromArgb(98, 98, 98));

private readonly SolidBrush scrollThumbHotBrush = new(Color.FromArgb(140, 140, 140));

private readonly SolidBrush scrollButtonBrush = new(Color.FromArgb(64, 64, 64));

private readonly SolidBrush scrollArrowBrush = new(Color.FromArgb(200, 200, 200));

private Font monoFont;

private SizeF monoFontSize;

private bool userHasDroppedFile = false;

private uint maxChannels;

private float channelWidth;

private int fromChannel;

// Custom-rendered horizontal scrollbar at the bottom of the patterns view.

private const float PatternsScrollBarHeight = 16f;

private bool isDraggingThumb;

private float dragThumbStartX;

private int dragFromChannelStart;

private byte[] buffer = [];

private readonly object sync = new();

private static readonly string[] supportedExtensions = [".mod", ".stm", ".s3m", ".xm", ".669"];

private const int sampleRate = 44100;

private const int bitDepth = 16; // 8 | 15

private const int channels = 2; // 1 | 2

private RectangleF progressRect;

private bool isLeftMouseButtonDown;

private PointF mouseDownPos;

private bool isResizing;

private int fps = 30;

private UITimer renderTimer;

const int sampleCharsCount = 26;

// Per-instrument cached waveform bitmaps. The sample data never changes while a

// track plays, so the expensive curve rendering happens once and is blitted on

// every subsequent paint. Invalidated whenever the loaded SoundFile changes.

private Bitmap[] sampleWaveformBitmaps = [];

private int sampleBitmapW, sampleBitmapH;

// Composite samples-panel bitmap: instrument names, waveform blits and the

// horizontal/vertical dividers baked into a single image so each frame only

// costs one DrawImage plus the live per-channel cursor lines.

private Bitmap samplesPanelBitmap;

private int samplesPanelW, samplesPanelH;

// Pre-rendered "empty cell" placeholder ("... .. ... ...") for active and

// inactive patterns. Wholly-empty cells are the majority of any pattern, so

// blitting these is far cheaper than four DrawText calls per cell.

private Bitmap emptyCellActiveBitmap;

private Bitmap emptyCellInactiveBitmap;

private int emptyCellW, emptyCellH;

// Pre-tokenized pattern commands keyed by [patternIndex][row * ActiveChannels + channel].

// Cells parse on first access and are reused across frames so RenderPattern doesn't

// allocate per cell per frame. Shared sentinel covers the pattern == 0xFF case.

private string[][][] cmdTokensCache = [];

private static readonly string[] emptyTokens = ["...", "..", "...", "..."];

// Last rendered playback markers; used by the render timer to invalidate only the

// regions that actually changed between ticks.

private uint lastRow = uint.MaxValue;

private uint lastCurrentPattern = uint.MaxValue;

private uint lastPosition = uint.MaxValue;

private struct Layout {

public RectangleF Samples;

public RectangleF Waveform;

public RectangleF Patterns;

public RectangleF PatternsScroll;

public RectangleF Progress;

}

public MainForm() {

Title = "SharpModPlayer";

MinimumSize = new Size(800, 600);

Canvas = new Drawable();

Content = Canvas;

this.Shown += (s, e) => {

this.Maximize();

try {

monoFont = new Font(new FontFamily("Consolas"), 12);

} catch(ArgumentOutOfRangeException) {

monoFont = new Font(FontFamilies.Monospace, 12);

}

using(Bitmap bmp = new(ClientSize, PixelFormat.Format32bppRgba)) {

using(Graphics g = new(bmp)) {

monoFontSize = g.MeasureString(monoFont, "W");

}

maxChannels = 4;

channelWidth = monoFontSize.Width * 13 + 8;

SetSoundFile(new SoundFile(GetRandomFile(), sampleRate, bitDepth == 16, channels == 2, false));

UpdateTitleBarText();

this.SizeChanged += (s, e) => { UpdateTitleBarText(); InvalidateAllAreas(); };

Canvas.Paint += RenderUI;

SetupDragDropSupport();

InitUIHandling();

StartAudio();

renderTimer = new UITimer { Interval = 1.0 / fps };

renderTimer.Elapsed += (_, _) => InvalidateChangedAreas();

renderTimer.Start();

};

}

private void SetSoundFile(SoundFile soundFile) {

sndFile = soundFile;

fps = (int)Math.Max(30, Math.Floor(5000.0 / sndFile.MusicTempo));

if(renderTimer != null) renderTimer.Interval = 1.0 / fps;

ResetSampleBitmapCache();

cmdTokensCache = new string[soundFile.Patterns.Length][][];

lastRow = uint.MaxValue;

lastCurrentPattern = uint.MaxValue;

lastPosition = uint.MaxValue;

fromChannel = 0;

}

private void ResetSampleBitmapCache() {

for(int i = 0; i < sampleWaveformBitmaps.Length; i++) sampleWaveformBitmaps[i]?.Dispose();

sampleWaveformBitmaps = [];

sampleBitmapW = 0;

sampleBitmapH = 0;

samplesPanelBitmap?.Dispose();

samplesPanelBitmap = null;

samplesPanelW = 0;

samplesPanelH = 0;

}

private void InitUIHandling() {

this.MouseDown += (_, e) => {

isLeftMouseButtonDown = (e.Buttons & MouseButtons.Primary) != 0;

mouseDownPos = e.Location;

if(isLeftMouseButtonDown && IsInsidePatternsScrollBar(e)) HandleScrollBarMouseDown(e.Location);

};

this.MouseUp += (_, e) => {

if(isLeftMouseButtonDown) {

if(IsInsideProgressBar(e)) SetPositionFromMouse(e.Location.X);

isLeftMouseButtonDown = false;

}

isResizing = false;

if(isDraggingThumb) {

isDraggingThumb = false;

Canvas.Invalidate(ToInt(ComputeLayout().PatternsScroll));

}

};

this.MouseMove += (_, e) => {

Cursor c = Cursor;

if(isDraggingThumb) {

UpdateThumbDrag(e.Location.X);

c = Cursors.Default;

} else if(IsInsidePatternsScrollBar(e)) {

c = Cursors.Default;

} else if(IsInsideProgressBar(e)) {

if(isLeftMouseButtonDown) SetPositionFromMouse(e.Location.X);

c = Cursors.IBeam;

} else if(IsOverChannelsDiv(e) || isResizing) {

if(isLeftMouseButtonDown) {

ResizeChannels(e.Location.X);

isResizing = true;

}

c = Cursors.SizeLeft; // .SizeWE;

} else {

c = Cursors.Default;

}

if(Cursor != c) Cursor = c;

};

}

private bool IsInsideProgressBar(MouseEventArgs e) {

return e.Location.X >= progressRect.Left && e.Location.X <= progressRect.Right &&

e.Location.Y >= progressRect.Top && e.Location.Y <= progressRect.Bottom;

}

private bool IsOverChannelsDiv(MouseEventArgs e) {

return e.Location.X >= progressRect.Right - 2 && e.Location.X <= progressRect.Right + 2;

}

private void SetPositionFromMouse(float x) {

float p = (x - progressRect.Left) / progressRect.Width;

sndFile.Position = (uint)(p * sndFile.PositionCount);

}

private void ResizeChannels(float x) {

const int minWaveformWidth = 200;

float delta = mouseDownPos.X - x;

int steps = (int)(delta / channelWidth); // truncates toward zero; one step per channelWidth pixels

if(steps == 0) return;

long target = (long)maxChannels + steps;

if(target < 1) target = 1;

if(target > sndFile.ActiveChannels) target = sndFile.ActiveChannels;

if(steps > 0) {

float available = DisplayRectangle().Width - 400 - minWaveformWidth;

long maxFit = (long)(available / channelWidth);

if(maxFit < (long)maxChannels) return;

if(target > maxFit) target = maxFit;

}

if(target == maxChannels) return;

int applied = (int)(target - maxChannels);

maxChannels = (uint)target;

ClampFromChannel();

UpdateTitleBarText();

InvalidateAllAreas();

// Slide the anchor by the consumed pixels so sub-channel residual movement is preserved.

mouseDownPos = new(mouseDownPos.X - applied * channelWidth, mouseDownPos.Y);

}

private void SetupDragDropSupport() {

Canvas.AllowDrop = true;

Canvas.DragOver += (object sender, DragEventArgs e) => e.Effects = DropFileIsValid(e) ? DragEffects.Copy : DragEffects.None;

Canvas.DragDrop += (object sender, DragEventArgs e) => {

if(!DropFileIsValid(e)) return;

SoundFile sf;

try {

sf = new SoundFile(e.Data.Uris[0].LocalPath, sampleRate, bitDepth == 16, channels == 2, false);

} catch { return; }

if(!sf.IsValid) return;

lock(sync) {

userHasDroppedFile = true;

SetSoundFile(sf);

if(maxChannels > sndFile.ActiveChannels) maxChannels = sndFile.ActiveChannels;

ClampFromChannel();

}

Application.Instance.AsyncInvoke(UpdateTitleBarText);

};

}

private static bool DropFileIsValid(DragEventArgs e) {

if(!e.Data.ContainsUris) return false;

Uri[] uris = e.Data.Uris;

if(uris == null || uris.Length != 1 || !uris[0].IsFile) return false;

string ext = Path.GetExtension(uris[0].LocalPath).ToLowerInvariant();

return supportedExtensions.Contains(ext);

}

private void StartAudio() {

ALDevice device = ALC.OpenDevice(null);

ALContextAttributes attributes = new() { Frequency = sampleRate };

ALContext context = ALC.CreateContext(device, attributes);

ALC.MakeContextCurrent(context);

int bufferLen = 6000;

int bufferLen2 = bufferLen / 2;

buffer = new byte[bufferLen];

ALFormat alf = bitDepth == 16 ?

(channels == 2 ? ALFormat.Stereo16 : ALFormat.Mono16) :

(channels == 2 ? ALFormat.Stereo8 : ALFormat.Mono8);

alSrc = AL.GenSource();

// All this crap is just to prevent having a conditional (if)

// inside the while loop, which is only executed once:

// if(AL.GetSourceState(alSrc) != ALSourceState.Playing) AL.SourcePlay(alSrc);

// https://github.com/morphx666/SharpMod/blob/4c46ce08023391139b074ce08e1b58c661a42199/SharpModPlayer/FormMain.cs#L182

int buf = AL.GenBuffer();

AL.BufferData(buf, alf, buffer, sampleRate);

AL.SourceQueueBuffer(alSrc, buf);

AL.SourcePlay(alSrc);

AL.SourceUnqueueBuffer(buf);

AL.DeleteBuffer(buf);

Task.Run(async () => {

int dataReadLength;

int frame = 0;

int bufferPosition;

bool bufferIsClear = false;

while(true) {

if(sndFile != null) {

dataReadLength = (int)sndFile.Read(buffer, (uint)bufferLen);

if(dataReadLength == 0) {

if(!bufferIsClear) {

Array.Clear(buffer, 0, bufferLen);

bufferIsClear = true;

}

} else if(bufferIsClear) bufferIsClear = false;

}

buf = AL.GenBuffer();

AL.BufferData(buf, alf, buffer, sampleRate);

AL.SourceQueueBuffer(alSrc, buf);

do {

await Task.Delay(5);

AL.GetSource(alSrc, ALGetSourcei.ByteOffset, out bufferPosition);

} while(bufferPosition + bufferLen2 < bufferLen * frame);

frame++;

AL.SourceUnqueueBuffer(buf);

AL.DeleteBuffer(buf);

}

});

}

private void UpdateTitleBarText() {

if(sndFile != null) {

uint s = sndFile.Length;

uint m = s / 60;

s %= 60;

this.Title = $"SharpMod: '{sndFile.Title}' | {sndFile.Type} | {m:00}m {s:00}s";

} else {

this.Title = $"SharpMod";

}

private string GetRandomFile() {

string baseDir = AppDomain.CurrentDomain.BaseDirectory;

if(Platform.IsMac) baseDir = Path.Combine(baseDir, "..", "..", "..", "..", "Release");

FileInfo[] files = (new DirectoryInfo(Path.Combine(baseDir, "mods"))).GetFiles("*.*");

return files[(new Random()).Next(files.Length)].FullName;

}

private Layout ComputeLayout() {

Size cs = ClientSize;

float w = cs.Width;

float h = cs.Height;

float samplesRight = monoFontSize.Width * sampleCharsCount + 200;

float patternsW = channelWidth * maxChannels + 6;

float patternsX = w - patternsW;

float waveLeft = samplesRight + 1;

bool hasScroll = sndFile != null && sndFile.ActiveChannels > maxChannels;

float scrollH = hasScroll ? PatternsScrollBarHeight : 0;

return new Layout {

Samples = new RectangleF(0, 0, samplesRight + 1, h),

Waveform = new RectangleF(waveLeft, 0, Math.Max(0, patternsX - waveLeft), h - 20),

Patterns = new RectangleF(patternsX, 0, patternsW, h - scrollH),

PatternsScroll = new RectangleF(patternsX, h - scrollH, patternsW, scrollH),

Progress = new RectangleF(waveLeft, h - 20, Math.Max(0, patternsX - waveLeft), 20),

};

}

private static Rectangle ToInt(RectangleF r) {

int x = (int)Math.Floor(r.X);

int y = (int)Math.Floor(r.Y);

return new Rectangle(x, y, (int)Math.Ceiling(r.Right) - x, (int)Math.Ceiling(r.Bottom) - y);

}

private void InvalidateAllAreas() {

lastRow = uint.MaxValue;

lastCurrentPattern = uint.MaxValue;

lastPosition = uint.MaxValue;

Canvas?.Invalidate();

}

private void InvalidateChangedAreas() {

if(sndFile == null) return;

Layout L = ComputeLayout();

// Oscilloscope and per-instrument playback cursors move every frame.

Canvas.Invalidate(ToInt(L.Waveform));

Canvas.Invalidate(ToInt(L.Samples));

uint pos = sndFile.Position;

if(pos != lastPosition) {

Canvas.Invalidate(ToInt(L.Progress));

lastPosition = pos;

}

uint row = sndFile.Row;

uint cur = sndFile.CurrentPattern;

if(row != lastRow || cur != lastCurrentPattern) {

Canvas.Invalidate(ToInt(L.Patterns));

lastRow = row;

lastCurrentPattern = cur;

}

private void RenderUI(object sender, PaintEventArgs e) {

if(sndFile == null) return;

lock(sync) {

Graphics g = e.Graphics;

RectangleF clip = e.ClipRectangle;

Layout L = ComputeLayout();

try {

if(clip.Intersects(L.Samples)) {

g.FillRectangle(Brushes.Black, L.Samples);

RenderSamples(g, L);

}

if(clip.Intersects(L.Waveform)) {

g.FillRectangle(Brushes.Black, L.Waveform);

RenderWaveform(g, L);

}

if(clip.Intersects(L.Patterns)) {

g.FillRectangle(Brushes.Black, L.Patterns);

RenderPatterns(g, L);

}

if(L.PatternsScroll.Height > 0 && clip.Intersects(L.PatternsScroll)) {

g.FillRectangle(Brushes.Black, L.PatternsScroll);

RenderPatternsScrollBar(g, L);

}

if(clip.Intersects(L.Progress)) {

g.FillRectangle(Brushes.Black, L.Progress);

RenderProgress(g, L);

}

} catch { }

; // Yep, Bad things happen sometimes... and I don't care

}

private void RenderPatterns(Graphics g, Layout L) {

RectangleF r = new(0, 0, (int)(channelWidth * maxChannels), L.Patterns.Height - monoFontSize.Height - 20);

r.Y = (int)((r.Height - monoFontSize.Height) / 2.0);

uint patternIndex = sndFile.Pattern;

int sfRow = (int)sndFile.Row;

if(patternIndex == 0xFF) {

patternIndex = sndFile.Order.Last((o) => o != 0xFF);

sfRow = 63;

}

float patternsLeft = L.Patterns.X + 6; // visual left edge of first channel column

if(sndFile.CurrentPattern > 0) RenderPattern(g, ref r, patternsLeft, fromChannel, sndFile.Order[sndFile.CurrentPattern - 1], 64, r.Y - sfRow * monoFontSize.Height, false);

RenderPattern(g, ref r, patternsLeft, fromChannel, patternIndex, sfRow, r.Y, true);

if(sndFile.NextPattern != 0xFF) RenderPattern(g, ref r, patternsLeft, fromChannel, sndFile.Order[sndFile.NextPattern], 0, r.Y - (sfRow - 64) * monoFontSize.Height, false);

g.FillRectangle(Brushes.LightGrey, patternsLeft - 6, 0, r.Width + 6, monoFontSize.Height);

float bottom = L.Patterns.Bottom;

for(int chn = 0; chn < maxChannels; chn++) {

float cx = patternsLeft + chn * channelWidth;

g.DrawText(monoFont, Brushes.DarkSlateBlue, cx + (channelWidth - monoFontSize.Width * 8) / 2, 0, $"Channel {chn + fromChannel + 1}");

g.DrawLine(Pens.DimGray, cx - 6, 0, cx - 6, bottom);

}

private void RenderSamples(Graphics g, Layout L) {

float sampleX = monoFontSize.Width * sampleCharsCount;

int sampleW = 200;

int sampleH = (int)monoFontSize.Height + 2;

EnsureSampleBitmaps(sampleW, sampleH);

int panelW = (int)Math.Ceiling(L.Samples.Width);

int panelH = (int)Math.Ceiling(L.Samples.Height);

EnsureSamplesPanelBitmap(panelW, panelH, sampleX, sampleW, sampleH);

if(samplesPanelBitmap != null) g.DrawImage(samplesPanelBitmap, 0, 0);

float y = (int)(monoFontSize.Height * 1.5);

for(int i = 1; i < sndFile.Instruments.Length; i++) {

SoundFile.ModInstrument inst = sndFile.Instruments[i];

if(inst.Sample != null) {

RectangleF cursorRect = new(sampleX, y - sampleH, sampleW, sampleH);

Renderer.RenderInstrumentCursors(sndFile, i, g, cursorRect);

}

y += sampleH + 4;

}

// Bakes the static samples-panel content (instrument names, waveform blits,

// horizontal row dividers, vertical column dividers) into a single bitmap so

// each frame's samples region is a single blit plus the live cursor lines.

// Rebuilt when the panel size changes or the loaded SoundFile changes.

private void EnsureSamplesPanelBitmap(int panelW, int panelH, float sampleX, int sampleW, int sampleH) {

if(panelW <= 0 || panelH <= 0) return;

if(samplesPanelBitmap != null && samplesPanelW == panelW && samplesPanelH == panelH) return;

samplesPanelBitmap?.Dispose();

samplesPanelBitmap = new Bitmap(panelW, panelH, PixelFormat.Format32bppRgba);

samplesPanelW = panelW;

samplesPanelH = panelH;

using Graphics bg = new(samplesPanelBitmap);

bg.AntiAlias = true;

float y = (int)(monoFontSize.Height * 1.5);

for(int i = 1; i < sndFile.Instruments.Length; i++) {

SoundFile.ModInstrument inst = sndFile.Instruments[i];

string n = inst.Name;

if(n.Length >= sampleCharsCount) n = string.Concat(n.AsSpan(0, sampleCharsCount - 2), "…");

bg.DrawText(monoFont, Brushes.White, 0, y - sampleH, n);

if(inst.Sample != null) {

Bitmap wf = sampleWaveformBitmaps[i];

if(wf != null) bg.DrawImage(wf, sampleX, y - sampleH);

}

bg.DrawLine(Pens.DimGray, 0, y + 1, sampleX + sampleW, y + 1);

y += sampleH + 4;

}

bg.DrawLine(Pens.DimGray, sampleX - 4, 0, sampleX - 4, panelH);

bg.DrawLine(Pens.DimGray, sampleX + sampleW, 0, sampleX + sampleW, panelH);

}

// Lazily renders each instrument's sample waveform into a small bitmap so

// subsequent paints can blit a static image instead of recomputing thousands of

// line segments per frame. Bitmaps are sized by the layout-derived (w, h) and

// rebuilt only when those change or the loaded file changes.

private void EnsureSampleBitmaps(int w, int h) {

if(w <= 0 || h <= 0) return;

int n = sndFile.Instruments.Length;

if(sampleWaveformBitmaps.Length != n || sampleBitmapW != w || sampleBitmapH != h) {

ResetSampleBitmapCache();

sampleWaveformBitmaps = new Bitmap[n];

sampleBitmapW = w;

sampleBitmapH = h;

}

for(int i = 1; i < n; i++) {

if(sampleWaveformBitmaps[i] != null) continue;

SoundFile.ModInstrument inst = sndFile.Instruments[i];

if(inst.Sample == null) continue;

Bitmap bmp = new(w, h, PixelFormat.Format32bppRgba);

using(Graphics bg = new(bmp)) {

bg.AntiAlias = true;

Renderer.RenderInstrumentSample(inst, bg, cWfPen, w, h);

}

sampleWaveformBitmaps[i] = bmp;

}

private void RenderProgress(Graphics g, Layout L) {

RectangleF r = L.Progress;

progressRect = r;

g.FillRectangle(Brushes.DimGray, r);

r.Width = (int)(r.Width * (double)sndFile.Position / sndFile.PositionCount);

g.FillRectangle(progressBrush, r);

}

private void RenderWaveform(Graphics g, Layout L) {

RectangleF r = L.Waveform;

if(!userHasDroppedFile) g.DrawText(monoFont, Brushes.Gray, r.Location, "Drop a new MOD file\nto start playing it");

Renderer.RenderWaveform(sndFile, buffer, g, oWfPenL, oWfPenR, r);

}

private void RenderPattern(Graphics g, ref RectangleF r, float patternsLeft, int fromChannel, uint patternIndex, int sfRow, float y, bool active) {

float rowH = monoFontSize.Height;

float colW = monoFontSize.Width - 1;

SolidBrush[] rowBg = bkColor[active ? 0 : 1];

float totalW = channelWidth * maxChannels;

EnsureEmptyCellBitmaps();

Bitmap emptyBmp = active ? emptyCellActiveBitmap : emptyCellInactiveBitmap;

for(int row = 0; row < 64; row++) {

float yo = y - (sfRow - row) * rowH;

if(yo < 0) continue;

if(yo >= r.Height) break;

bool highlight = (row == sfRow) || (row % 4) == 0;

if(highlight) g.FillRectangle(rowBg[row == sfRow ? 1 : 0], patternsLeft, yo, totalW, rowH);

for(int chn = 0; chn < maxChannels; chn++) {

string[] cmds = GetCmdTokens(patternIndex, (uint)row, chn + fromChannel);

float rx = patternsLeft + chn * channelWidth;

if(ReferenceEquals(cmds, emptyTokens)) {

if(emptyBmp != null) g.DrawImage(emptyBmp, rx, yo);

continue;

}

float xo = 0;

for(int i = 0; i < cmds.Length; i++) {

string s = cmds[i];

g.DrawText(monoFont, cColor[active ? i + 1 : 0], rx + xo, yo, s);

xo += (s.Length + 1) * colW;

}

// Bakes the "... .. ... ..." placeholder into a small bitmap per style so

// wholly-empty cells (the bulk of any pattern) render as a single blit.

private void EnsureEmptyCellBitmaps() {

int w = (int)Math.Ceiling(channelWidth);

int h = (int)Math.Ceiling(monoFontSize.Height);

if(emptyCellActiveBitmap != null && emptyCellW == w && emptyCellH == h) return;

emptyCellActiveBitmap?.Dispose();

emptyCellInactiveBitmap?.Dispose();

emptyCellW = w;

emptyCellH = h;

emptyCellActiveBitmap = BuildEmptyCellBitmap(w, h, true);

emptyCellInactiveBitmap = BuildEmptyCellBitmap(w, h, false);

}

private Bitmap BuildEmptyCellBitmap(int w, int h, bool active) {

Bitmap bmp = new(w, h, PixelFormat.Format32bppRgba);

using Graphics bg = new(bmp);

float colW = monoFontSize.Width - 1;

float xo = 0;

for(int i = 0; i < emptyTokens.Length; i++) {

string s = emptyTokens[i];

bg.DrawText(monoFont, cColor[active ? i + 1 : 0], xo, 0, s);

xo += (s.Length + 1) * colW;

}

return bmp;

}

private string[] GetCmdTokens(uint pattern, uint row, int channel) {

if(pattern == 0xFF || pattern >= cmdTokensCache.Length) return emptyTokens;

string[][] perPattern = cmdTokensCache[pattern];

uint activeChannels = sndFile.ActiveChannels;

if(perPattern == null) {

perPattern = new string[64 * activeChannels][];

cmdTokensCache[pattern] = perPattern;

}

int idx = (int)(row * activeChannels) + channel;

if((uint)idx >= (uint)perPattern.Length) return emptyTokens;

string[] tokens = perPattern[idx];

if(tokens == null) {

tokens = sndFile.CommandToString(pattern, row, channel).Split(' ');

bool allEmpty = true;

for(int i = 0; i < tokens.Length; i++) {

string s = tokens[i];

if(s.Length > 0 && s[0] != '.') { allEmpty = false; break; }

}

if(allEmpty) tokens = emptyTokens;

perPattern[idx] = tokens;

}

return tokens;

}

private RectangleF DisplayRectangle() {

return new RectangleF(PointF.Empty, this.ClientSize);

}

private void ClampFromChannel() {

if(sndFile == null) { fromChannel = 0; return; }

int max = Math.Max(0, (int)sndFile.ActiveChannels - (int)maxChannels);

if(fromChannel < 0) fromChannel = 0;

else if(fromChannel > max) fromChannel = max;

}

private void SetFromChannel(int v) {

if(sndFile == null) return;

int max = Math.Max(0, (int)sndFile.ActiveChannels - (int)maxChannels);

if(v < 0) v = 0; else if(v > max) v = max;

if(v == fromChannel) return;

fromChannel = v;

InvalidateAllAreas();

}

private void ComputeScrollBarParts(Layout L, out RectangleF leftBtn, out RectangleF rightBtn, out RectangleF track, out RectangleF thumb) {

RectangleF bar = L.PatternsScroll;

float btnSize = bar.Height;

leftBtn = new RectangleF(bar.X + 6, bar.Y, btnSize, bar.Height);

rightBtn = new RectangleF(bar.Right - 6 - btnSize, bar.Y, btnSize, bar.Height);

float trackX = leftBtn.Right + 1;

float trackW = Math.Max(0, rightBtn.X - 1 - trackX);

track = new RectangleF(trackX, bar.Y, trackW, bar.Height);

int active = (int)(sndFile?.ActiveChannels ?? 0);

int visible = (int)maxChannels;

int range = Math.Max(1, active - visible);

float minThumbW = btnSize;

float thumbW = active > 0 ? track.Width * visible / active : track.Width;

if(thumbW < minThumbW) thumbW = minThumbW;

if(thumbW > track.Width) thumbW = track.Width;

float travel = track.Width - thumbW;

float thumbX = track.X + (travel > 0 ? travel * fromChannel / range : 0);

thumb = new RectangleF(thumbX, bar.Y, thumbW, bar.Height);

}

private void RenderPatternsScrollBar(Graphics g, Layout L) {

if(L.PatternsScroll.Height <= 0) return;

ComputeScrollBarParts(L, out RectangleF leftBtn, out RectangleF rightBtn, out RectangleF track, out RectangleF thumb);

g.FillRectangle(scrollButtonBrush, leftBtn);

g.FillRectangle(scrollButtonBrush, rightBtn);

g.FillRectangle(scrollTrackBrush, track);

g.FillRectangle(isDraggingThumb ? scrollThumbHotBrush : scrollThumbBrush, thumb);

DrawScrollArrow(g, leftBtn, true);

DrawScrollArrow(g, rightBtn, false);

}

private void DrawScrollArrow(Graphics g, RectangleF r, bool left) {

float cx = r.X + r.Width / 2f;

float cy = r.Y + r.Height / 2f;

float s = Math.Min(r.Width, r.Height) * 0.3f;

PointF[] pts = left

? [new PointF(cx + s / 2, cy - s), new PointF(cx + s / 2, cy + s), new PointF(cx - s / 2, cy)]

: [new PointF(cx - s / 2, cy - s), new PointF(cx - s / 2, cy + s), new PointF(cx + s / 2, cy)];

g.FillPolygon(scrollArrowBrush, pts);

}

private bool IsInsidePatternsScrollBar(MouseEventArgs e) {

if(sndFile == null || sndFile.ActiveChannels <= maxChannels) return false;

Layout L = ComputeLayout();

return L.PatternsScroll.Contains(e.Location);

}

private void HandleScrollBarMouseDown(PointF p) {

Layout L = ComputeLayout();

ComputeScrollBarParts(L, out RectangleF leftBtn, out RectangleF rightBtn, out RectangleF track, out RectangleF thumb);

if(leftBtn.Contains(p)) {

SetFromChannel(fromChannel - 1);

} else if(rightBtn.Contains(p)) {

SetFromChannel(fromChannel + 1);

} else if(thumb.Contains(p)) {

isDraggingThumb = true;

dragThumbStartX = p.X;

dragFromChannelStart = fromChannel;

Canvas.Invalidate(ToInt(L.PatternsScroll));

} else if(track.Contains(p)) {

int page = Math.Max(1, (int)maxChannels);

SetFromChannel(p.X < thumb.X ? fromChannel - page : fromChannel + page);

}

private void UpdateThumbDrag(float x) {

Layout L = ComputeLayout();

ComputeScrollBarParts(L, out _, out _, out RectangleF track, out RectangleF thumb);

float travel = track.Width - thumb.Width;

if(travel <= 0) return;

int range = Math.Max(1, (int)sndFile.ActiveChannels - (int)maxChannels);

float dx = x - dragThumbStartX;

int delta = (int)Math.Round(dx / travel * range);

SetFromChannel(dragFromChannelStart + delta);

}

SharpMod/SharpMod.PlayerGUI/SharpMod.PlayerGUI/MainForm.cs at master · morphx666/SharpMod · GitHub

Expand file tree

Breadcrumbs

MainForm.cs

Latest commit

History

Breadcrumbs

MainForm.cs

File metadata and controls