src/declarative/particles/qsgimageparticle.cpp

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  41
  42 #include <private/qsgcontext_p.h>
  43 #include <private/qsgadaptationlayer_p.h>
  44 #include <qsgnode.h>
  45 #include <qsgtexturematerial.h>
  46 #include <qsgtexture.h>
  47 #include <QFile>
  48 #include "qsgimageparticle_p.h"
  49 #include "qsgparticleemitter_p.h"
  50 #include "qsgsprite_p.h"
  51 #include "qsgspriteengine_p.h"
  52 #include <QGLFunctions>
  53 #include <qsgengine.h>
  54
  55 QT_BEGIN_NAMESPACE
  56
  57 const float CONV = 0.017453292519943295;
  58 class UltraMaterial : public QSGMaterial
  59 {
  60 public:
  61     UltraMaterial(bool withSprites=false)
  62         : timestamp(0)
  63         , framecount(1)
  64         , animcount(1)
  65         , usesSprites(withSprites)
  66     {
  67         setFlag(Blending, true);
  68     }
  69
  70     ~UltraMaterial()
  71     {
  72         delete texture;
  73         delete colortable;
  74         delete sizetable;
  75         delete opacitytable;
  76     }
  77
  78     virtual QSGMaterialType *type() const { static QSGMaterialType type; return &type; }
  79     virtual QSGMaterialShader *createShader() const;
  80     virtual int compare(const QSGMaterial *other) const
  81     {
  82         return this - static_cast<const UltraMaterial *>(other);
  83     }
  84
  85     QSGTexture *texture;
  86     QSGTexture *colortable;
  87     QSGTexture *sizetable;
  88     QSGTexture *opacitytable;
  89
  90     qreal timestamp;
  91     int framecount;
  92     int animcount;
  93     bool usesSprites;
  94 };
  95 class UltraMaterialData : public QSGMaterialShader
  96 {
  97 public:
  98     UltraMaterialData(const char *vertexFile = 0, const char *fragmentFile = 0)
  99     {
 100         QFile vf(vertexFile ? vertexFile : ":defaultshaders/ultravertex.shader");
 101         vf.open(QFile::ReadOnly);
 102         m_vertex_code = vf.readAll();
 103
 104         QFile ff(fragmentFile ? fragmentFile : ":defaultshaders/ultrafragment.shader");
 105         ff.open(QFile::ReadOnly);
 106         m_fragment_code = ff.readAll();
 107
 108         Q_ASSERT(!m_vertex_code.isNull());
 109         Q_ASSERT(!m_fragment_code.isNull());
 110     }
 111
 112     void deactivate() {
 113         QSGMaterialShader::deactivate();
 114
 115         for (int i=0; i<8; ++i) {
 116             program()->setAttributeArray(i, GL_FLOAT, chunkOfBytes, 1, 0);
 117         }
 118     }
 119
 120     virtual void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *)
 121     {
 122         UltraMaterial *m = static_cast<UltraMaterial *>(newEffect);
 123         state.context()->functions()->glActiveTexture(GL_TEXTURE1);
 124         m->colortable->bind();
 125         program()->setUniformValue(m_colortable_id, 1);
 126
 127         state.context()->functions()->glActiveTexture(GL_TEXTURE2);
 128         m->sizetable->bind();
 129         program()->setUniformValue(m_sizetable_id, 2);
 130
 131         state.context()->functions()->glActiveTexture(GL_TEXTURE3);
 132         m->opacitytable->bind();
 133         program()->setUniformValue(m_opacitytable_id, 3);
 134
 135         state.context()->functions()->glActiveTexture(GL_TEXTURE0);//Investigate why this screws up Text{} if placed before 1
 136         m->texture->bind();
 137
 138         program()->setUniformValue(m_opacity_id, state.opacity());
 139         program()->setUniformValue(m_timestamp_id, (float) m->timestamp);
 140         program()->setUniformValue(m_framecount_id, (float) m->framecount);
 141         program()->setUniformValue(m_animcount_id, (float) m->animcount);
 142
 143         if (state.isMatrixDirty())
 144             program()->setUniformValue(m_matrix_id, state.combinedMatrix());
 145     }
 146
 147     virtual void initialize() {
 148         m_colortable_id = program()->uniformLocation("colortable");
 149         m_sizetable_id = program()->uniformLocation("sizetable");
 150         m_opacitytable_id = program()->uniformLocation("opacitytable");
 151         m_matrix_id = program()->uniformLocation("matrix");
 152         m_opacity_id = program()->uniformLocation("opacity");
 153         m_timestamp_id = program()->uniformLocation("timestamp");
 154         m_framecount_id = program()->uniformLocation("framecount");
 155         m_animcount_id = program()->uniformLocation("animcount");
 156     }
 157
 158     virtual const char *vertexShader() const { return m_vertex_code.constData(); }
 159     virtual const char *fragmentShader() const { return m_fragment_code.constData(); }
 160
 161     virtual char const *const *attributeNames() const {
 162         static const char *attr[] = {
 163             "vPos",
 164             "vTex",
 165             "vData",
 166             "vVec",
 167             "vColor",
 168             "vDeformVec",
 169             "vRotation",
 170             "vAnimData",
 171             0
 172         };
 173         return attr;
 174     }
 175
 176     virtual bool isColorTable() const { return false; }
 177
 178     int m_matrix_id;
 179     int m_opacity_id;
 180     int m_timestamp_id;
 181     int m_colortable_id;
 182     int m_sizetable_id;
 183     int m_opacitytable_id;
 184     int m_framecount_id;
 185     int m_animcount_id;
 186
 187     QByteArray m_vertex_code;
 188     QByteArray m_fragment_code;
 189
 190     static float chunkOfBytes[1024];
 191 };
 192 float UltraMaterialData::chunkOfBytes[1024];
 193
 194 QSGMaterialShader *UltraMaterial::createShader() const
 195 {
 196     if(usesSprites)//TODO: Perhaps just swap the shaders, and don't mind the extra vector?
 197         return new UltraMaterialData;
 198     else
 199         return new UltraMaterialData;
 200 }
 201
 202
 203 class SimpleMaterial : public UltraMaterial
 204 {
 205     virtual QSGMaterialShader *createShader() const;
 206     virtual QSGMaterialType *type() const { static QSGMaterialType type; return &type; }
 207 };
 208
 209 class SimpleMaterialData : public QSGMaterialShader
 210 {
 211 public:
 212     SimpleMaterialData(const char *vertexFile = 0, const char *fragmentFile = 0)
 213     {
 214         QFile vf(vertexFile ? vertexFile : ":defaultshaders/simplevertex.shader");
 215         vf.open(QFile::ReadOnly);
 216         m_vertex_code = vf.readAll();
 217
 218         QFile ff(fragmentFile ? fragmentFile : ":defaultshaders/simplefragment.shader");
 219         ff.open(QFile::ReadOnly);
 220         m_fragment_code = ff.readAll();
 221
 222         Q_ASSERT(!m_vertex_code.isNull());
 223         Q_ASSERT(!m_fragment_code.isNull());
 224     }
 225
 226     void deactivate() {
 227         QSGMaterialShader::deactivate();
 228
 229         for (int i=0; i<8; ++i) {
 230             program()->setAttributeArray(i, GL_FLOAT, chunkOfBytes, 1, 0);
 231         }
 232     }
 233
 234     virtual void updateState(const RenderState &state, QSGMaterial *newEffect, QSGMaterial *)
 235     {
 236         UltraMaterial *m = static_cast<UltraMaterial *>(newEffect);
 237         state.context()->functions()->glActiveTexture(GL_TEXTURE0);
 238         m->texture->bind();
 239
 240         program()->setUniformValue(m_opacity_id, state.opacity());
 241         program()->setUniformValue(m_timestamp_id, (float) m->timestamp);
 242
 243         if (state.isMatrixDirty())
 244             program()->setUniformValue(m_matrix_id, state.combinedMatrix());
 245     }
 246
 247     virtual void initialize() {
 248         m_matrix_id = program()->uniformLocation("matrix");
 249         m_opacity_id = program()->uniformLocation("opacity");
 250         m_timestamp_id = program()->uniformLocation("timestamp");
 251     }
 252
 253     virtual const char *vertexShader() const { return m_vertex_code.constData(); }
 254     virtual const char *fragmentShader() const { return m_fragment_code.constData(); }
 255
 256     virtual char const *const *attributeNames() const {
 257         static const char *attr[] = {
 258             "vPos",
 259             "vTex",
 260             "vData",
 261             "vVec",
 262             0
 263         };
 264         return attr;
 265     }
 266
 267     virtual bool isColorTable() const { return false; }
 268
 269     int m_matrix_id;
 270     int m_opacity_id;
 271     int m_timestamp_id;
 272
 273     QByteArray m_vertex_code;
 274     QByteArray m_fragment_code;
 275
 276     static float chunkOfBytes[1024];
 277 };
 278 float SimpleMaterialData::chunkOfBytes[1024];
 279
 280 QSGMaterialShader *SimpleMaterial::createShader() const {
 281     return new SimpleMaterialData;
 282 }
 283
 284 QSGImageParticle::QSGImageParticle(QSGItem* parent)
 285     : QSGParticlePainter(parent)
 286     , m_do_reset(false)
 287     , m_color_variation(0.0)
 288     , m_node(0)
 289     , m_material(0)
 290     , m_alphaVariation(0.0)
 291     , m_alpha(1.0)
 292     , m_redVariation(0.0)
 293     , m_greenVariation(0.0)
 294     , m_blueVariation(0.0)
 295     , m_rotation(0)
 296     , m_autoRotation(false)
 297     , m_xVector(0)
 298     , m_yVector(0)
 299     , m_rotationVariation(0)
 300     , m_rotationSpeed(0)
 301     , m_rotationSpeedVariation(0)
 302     , m_spriteEngine(0)
 303     , m_bloat(false)
 304     , perfLevel(Unknown)
 305     , m_lastLevel(Unknown)
 306 {
 307     setFlag(ItemHasContents);
 308 }
 309
 310 QDeclarativeListProperty<QSGSprite> QSGImageParticle::sprites()
 311 {
 312     return QDeclarativeListProperty<QSGSprite>(this, &m_sprites, spriteAppend, spriteCount, spriteAt, spriteClear);
 313 }
 314
 315 void QSGImageParticle::setImage(const QUrl &image)
 316 {
 317     if (image == m_image_name)
 318         return;
 319     m_image_name = image;
 320     emit imageChanged();
 321     reset();
 322 }
 323
 324
 325 void QSGImageParticle::setColortable(const QUrl &table)
 326 {
 327     if (table == m_colortable_name)
 328         return;
 329     m_colortable_name = table;
 330     emit colortableChanged();
 331     reset();
 332 }
 333
 334 void QSGImageParticle::setSizetable(const QUrl &table)
 335 {
 336     if (table == m_sizetable_name)
 337         return;
 338     m_sizetable_name = table;
 339     emit sizetableChanged();
 340     reset();
 341 }
 342
 343 void QSGImageParticle::setOpacitytable(const QUrl &table)
 344 {
 345     if (table == m_opacitytable_name)
 346         return;
 347     m_opacitytable_name = table;
 348     emit opacitytableChanged();
 349     reset();
 350 }
 351
 352 void QSGImageParticle::setColor(const QColor &color)
 353 {
 354     if (color == m_color)
 355         return;
 356     m_color = color;
 357     emit colorChanged();
 358     if(perfLevel < Coloured)
 359         reset();
 360 }
 361
 362 void QSGImageParticle::setColorVariation(qreal var)
 363 {
 364     if (var == m_color_variation)
 365         return;
 366     m_color_variation = var;
 367     emit colorVariationChanged();
 368     if(perfLevel < Coloured)
 369         reset();
 370 }
 371
 372 void QSGImageParticle::setAlphaVariation(qreal arg)
 373 {
 374     if (m_alphaVariation != arg) {
 375         m_alphaVariation = arg;
 376         emit alphaVariationChanged(arg);
 377     }
 378     if(perfLevel < Coloured)
 379         reset();
 380 }
 381
 382 void QSGImageParticle::setAlpha(qreal arg)
 383 {
 384     if (m_alpha != arg) {
 385         m_alpha = arg;
 386         emit alphaChanged(arg);
 387     }
 388     if(perfLevel < Coloured)
 389         reset();
 390 }
 391
 392 void QSGImageParticle::setRedVariation(qreal arg)
 393 {
 394     if (m_redVariation != arg) {
 395         m_redVariation = arg;
 396         emit redVariationChanged(arg);
 397     }
 398     if(perfLevel < Coloured)
 399         reset();
 400 }
 401
 402 void QSGImageParticle::setGreenVariation(qreal arg)
 403 {
 404     if (m_greenVariation != arg) {
 405         m_greenVariation = arg;
 406         emit greenVariationChanged(arg);
 407     }
 408     if(perfLevel < Coloured)
 409         reset();
 410 }
 411
 412 void QSGImageParticle::setBlueVariation(qreal arg)
 413 {
 414     if (m_blueVariation != arg) {
 415         m_blueVariation = arg;
 416         emit blueVariationChanged(arg);
 417     }
 418     if(perfLevel < Coloured)
 419         reset();
 420 }
 421
 422 void QSGImageParticle::setRotation(qreal arg)
 423 {
 424     if (m_rotation != arg) {
 425         m_rotation = arg;
 426         emit rotationChanged(arg);
 427     }
 428     if(perfLevel < Deformable)
 429         reset();
 430 }
 431
 432 void QSGImageParticle::setRotationVariation(qreal arg)
 433 {
 434     if (m_rotationVariation != arg) {
 435         m_rotationVariation = arg;
 436         emit rotationVariationChanged(arg);
 437     }
 438     if(perfLevel < Deformable)
 439         reset();
 440 }
 441
 442 void QSGImageParticle::setRotationSpeed(qreal arg)
 443 {
 444     if (m_rotationSpeed != arg) {
 445         m_rotationSpeed = arg;
 446         emit rotationSpeedChanged(arg);
 447     }
 448     if(perfLevel < Deformable)
 449         reset();
 450 }
 451
 452 void QSGImageParticle::setRotationSpeedVariation(qreal arg)
 453 {
 454     if (m_rotationSpeedVariation != arg) {
 455         m_rotationSpeedVariation = arg;
 456         emit rotationSpeedVariationChanged(arg);
 457     }
 458     if(perfLevel < Deformable)
 459         reset();
 460 }
 461
 462 void QSGImageParticle::setAutoRotation(bool arg)
 463 {
 464     if (m_autoRotation != arg) {
 465         m_autoRotation = arg;
 466         emit autoRotationChanged(arg);
 467     }
 468     if(perfLevel < Deformable)
 469         reset();
 470 }
 471
 472 void QSGImageParticle::setXVector(QSGStochasticDirection* arg)
 473 {
 474     if (m_xVector != arg) {
 475         m_xVector = arg;
 476         emit xVectorChanged(arg);
 477     }
 478     if(perfLevel < Deformable)
 479         reset();
 480 }
 481
 482 void QSGImageParticle::setYVector(QSGStochasticDirection* arg)
 483 {
 484     if (m_yVector != arg) {
 485         m_yVector = arg;
 486         emit yVectorChanged(arg);
 487     }
 488     if(perfLevel < Deformable)
 489         reset();
 490 }
 491
 492 void QSGImageParticle::setBloat(bool arg)
 493 {
 494     if (m_bloat != arg) {
 495         m_bloat = arg;
 496         emit bloatChanged(arg);
 497     }
 498     if(perfLevel < 9999)
 499         reset();
 500 }
 501 void QSGImageParticle::setCount(int c)
 502 {
 503     QSGParticlePainter::setCount(c);
 504     m_pleaseReset = true;
 505 }
 506
 507 void QSGImageParticle::reset()
 508 {
 509     QSGParticlePainter::reset();
 510      m_pleaseReset = true;
 511 }
 512
 513 void QSGImageParticle::createEngine()
 514 {
 515     if(m_spriteEngine)
 516         delete m_spriteEngine;
 517     if(m_sprites.count())
 518         m_spriteEngine = new QSGSpriteEngine(m_sprites, this);
 519     else
 520         m_spriteEngine = 0;
 521     reset();
 522 }
 523
 524 static QSGGeometry::Attribute SimpleParticle_Attributes[] = {
 525     { 0, 2, GL_FLOAT },             // Position
 526     { 1, 2, GL_FLOAT },             // TexCoord
 527     { 2, 4, GL_FLOAT },             // Data
 528     { 3, 4, GL_FLOAT }             // Vectors
 529 };
 530
 531 static QSGGeometry::AttributeSet SimpleParticle_AttributeSet =
 532 {
 533     4, // Attribute Count
 534     (2 + 2 + 4 + 4 ) * sizeof(float),
 535     SimpleParticle_Attributes
 536 };
 537
 538 static QSGGeometry::Attribute UltraParticle_Attributes[] = {
 539     { 0, 2, GL_FLOAT },             // Position
 540     { 1, 2, GL_FLOAT },             // TexCoord
 541     { 2, 4, GL_FLOAT },             // Data
 542     { 3, 4, GL_FLOAT },             // Vectors
 543     { 4, 4, GL_UNSIGNED_BYTE },     // Colors
 544     { 5, 4, GL_FLOAT },             // DeformationVectors
 545     { 6, 3, GL_FLOAT },             // Rotation
 546     { 7, 4, GL_FLOAT }              // Anim Data
 547 };
 548
 549 static QSGGeometry::AttributeSet UltraParticle_AttributeSet =
 550 {
 551     8, // Attribute Count
 552     (2 + 2 + 4 + 4 + 4 + 4 + 3) * sizeof(float) + 4 * sizeof(uchar),
 553     UltraParticle_Attributes
 554 };
 555
 556 QSGGeometryNode* QSGImageParticle::buildSimpleParticleNode()
 557 {
 558     perfLevel = Simple;//TODO: Intermediate levels
 559     QImage image = QImage(m_image_name.toLocalFile());
 560     if (image.isNull()) {
 561         printf("UltraParticle: loading image failed... '%s'\n", qPrintable(m_image_name.toLocalFile()));
 562         return 0;
 563     }
 564     int vCount = m_count * 4;
 565     int iCount = m_count * 6;
 566     qDebug() << "Simple Case";
 567
 568     QSGGeometry *g = new QSGGeometry(SimpleParticle_AttributeSet, vCount, iCount);
 569     g->setDrawingMode(GL_TRIANGLES);
 570
 571     SimpleVertex *vertices = (SimpleVertex *) g->vertexData();
 572     for (int p=0; p<m_count; ++p) {
 573         for (int i=0; i<4; ++i) {
 574             vertices[i].x = 0;
 575             vertices[i].y = 0;
 576             vertices[i].t = -1;
 577             vertices[i].lifeSpan = 0;
 578             vertices[i].size = 0;
 579             vertices[i].endSize = 0;
 580             vertices[i].sx = 0;
 581             vertices[i].sy = 0;
 582             vertices[i].ax = 0;
 583             vertices[i].ay = 0;
 584         }
 585
 586         vertices[0].tx = 0;
 587         vertices[0].ty = 0;
 588
 589         vertices[1].tx = 1;
 590         vertices[1].ty = 0;
 591
 592         vertices[2].tx = 0;
 593         vertices[2].ty = 1;
 594
 595         vertices[3].tx = 1;
 596         vertices[3].ty = 1;
 597
 598         vertices += 4;
 599     }
 600
 601     quint16 *indices = g->indexDataAsUShort();
 602     for (int i=0; i<m_count; ++i) {
 603         int o = i * 4;
 604         indices[0] = o;
 605         indices[1] = o + 1;
 606         indices[2] = o + 2;
 607         indices[3] = o + 1;
 608         indices[4] = o + 3;
 609         indices[5] = o + 2;
 610         indices += 6;
 611     }
 612
 613     if (m_material) {
 614         delete m_material;
 615         m_material = 0;
 616     }
 617
 618     m_material = new SimpleMaterial();
 619     m_material->texture = sceneGraphEngine()->createTextureFromImage(image);
 620     m_material->texture->setFiltering(QSGTexture::Linear);
 621     m_material->framecount = 1;
 622     m_node = new QSGGeometryNode();
 623     m_node->setGeometry(g);
 624     m_node->setMaterial(m_material);
 625
 626     m_last_particle = 0;
 627
 628     return m_node;
 629 }
 630
 631 QSGGeometryNode* QSGImageParticle::buildParticleNode()
 632 {
 633     if (m_count * 4 > 0xffff) {
 634         printf("UltraParticle: Too many particles... \n");//####Why is this here?
 635         return 0;
 636     }
 637
 638     if(m_count <= 0) {
 639         printf("UltraParticle: Too few particles... \n");
 640         return 0;
 641     }
 642
 643     if(!m_sprites.count() && !m_bloat
 644             && m_colortable_name.isEmpty()
 645             && m_sizetable_name.isEmpty()
 646             && m_opacitytable_name.isEmpty()
 647             && !m_autoRotation
 648             && !m_rotation && !m_rotationVariation
 649             && !m_rotationSpeed && !m_rotationSpeedVariation
 650             && !m_alphaVariation && m_alpha == 1.0
 651             && !m_redVariation && !m_blueVariation && !m_greenVariation
 652             && !m_color.isValid()
 653             )
 654         return buildSimpleParticleNode();
 655     perfLevel = Sprites;//TODO: intermediate levels
 656     if(!m_color.isValid())//But we're in colored level (or higher)
 657         m_color = QColor(Qt::white);
 658     qDebug() << "Complex Case";
 659
 660     QImage image;
 661     if(m_sprites.count()){
 662         if (!m_spriteEngine) {
 663             qWarning() << "UltraParticle: No sprite engine...";
 664             return 0;
 665         }
 666         image = m_spriteEngine->assembledImage();
 667         if(image.isNull())//Warning is printed in engine
 668             return 0;
 669     }else{
 670         image = QImage(m_image_name.toLocalFile());
 671         if (image.isNull()) {
 672             printf("UltraParticle: loading image failed... '%s'\n", qPrintable(m_image_name.toLocalFile()));
 673             return 0;
 674         }
 675     }
 676
 677     int vCount = m_count * 4;
 678     int iCount = m_count * 6;
 679
 680     QSGGeometry *g = new QSGGeometry(UltraParticle_AttributeSet, vCount, iCount);
 681     g->setDrawingMode(GL_TRIANGLES);
 682
 683     UltraVertex *vertices = (UltraVertex *) g->vertexData();
 684     SimpleVertex *oldSimple = (SimpleVertex *) m_lastData;//TODO: Other levels
 685     if(m_lastLevel == 1)
 686         qDebug() << "Theta" << m_lastLevel << oldSimple[0].x << oldSimple[0].y << oldSimple[0].t;
 687     for (int p=0; p<m_count; ++p) {
 688
 689         if (m_lastLevel == 1) {//Transplant/IntermediateVertices?
 690             for (int i=0; i<4; ++i) {
 691                 vertices[i].x = oldSimple[i].x;
 692                 vertices[i].y = oldSimple[i].y;
 693                 vertices[i].t = oldSimple[i].t;
 694                 vertices[i].lifeSpan = oldSimple[i].lifeSpan;
 695                 vertices[i].size = oldSimple[i].size;
 696                 vertices[i].endSize = oldSimple[i].endSize;
 697                 vertices[i].sx = oldSimple[i].sx;
 698                 vertices[i].sy = oldSimple[i].sy;
 699                 vertices[i].ax = oldSimple[i].ax;
 700                 vertices[i].ay = oldSimple[i].ay;
 701                 vertices[i].xx = 1;
 702                 vertices[i].xy = 0;
 703                 vertices[i].yx = 0;
 704                 vertices[i].yy = 1;
 705                 vertices[i].rotation = 0;
 706                 vertices[i].rotationSpeed = 0;
 707                 vertices[i].autoRotate = 0;
 708                 vertices[i].animIdx = 0;
 709                 vertices[i].frameDuration = oldSimple[i].lifeSpan;
 710                 vertices[i].frameCount = 1;
 711                 vertices[i].animT = oldSimple[i].t;
 712                 vertices[i].color.r = 255;
 713                 vertices[i].color.g = 255;
 714                 vertices[i].color.b = 255;
 715                 vertices[i].color.a = 255;
 716             }
 717         } else {
 718             for (int i=0; i<4; ++i) {
 719                 vertices[i].x = 0;
 720                 vertices[i].y = 0;
 721                 vertices[i].t = -1;
 722                 vertices[i].lifeSpan = 0;
 723                 vertices[i].size = 0;
 724                 vertices[i].endSize = 0;
 725                 vertices[i].sx = 0;
 726                 vertices[i].sy = 0;
 727                 vertices[i].ax = 0;
 728                 vertices[i].ay = 0;
 729                 vertices[i].xx = 1;
 730                 vertices[i].xy = 0;
 731                 vertices[i].yx = 0;
 732                 vertices[i].yy = 1;
 733                 vertices[i].rotation = 0;
 734                 vertices[i].rotationSpeed = 0;
 735                 vertices[i].autoRotate = 0;
 736                 vertices[i].animIdx = -1;
 737                 vertices[i].frameDuration = 1;
 738                 vertices[i].frameCount = 0;
 739                 vertices[i].animT = -1;
 740                 vertices[i].color.r = 0;//TODO:Some things never get used uninitialized. Consider dropping them here?
 741                 vertices[i].color.g = 0;
 742                 vertices[i].color.b = 0;
 743                 vertices[i].color.a = 0;
 744             }
 745         }
 746
 747         vertices[0].tx = 0;
 748         vertices[0].ty = 0;
 749
 750         vertices[1].tx = 1;
 751         vertices[1].ty = 0;
 752
 753         vertices[2].tx = 0;
 754         vertices[2].ty = 1;
 755
 756         vertices[3].tx = 1;
 757         vertices[3].ty = 1;
 758
 759         vertices += 4;
 760         oldSimple += 4;
 761     }
 762
 763     quint16 *indices = g->indexDataAsUShort();//TODO: Speed gains by copying this over if count unchanged?
 764     for (int i=0; i<m_count; ++i) {
 765         int o = i * 4;
 766         indices[0] = o;
 767         indices[1] = o + 1;
 768         indices[2] = o + 2;
 769         indices[3] = o + 1;
 770         indices[4] = o + 3;
 771         indices[5] = o + 2;
 772         indices += 6;
 773     }
 774
 775     qFree(m_lastData);
 776     if (m_material) {
 777         delete m_material;
 778         m_material = 0;
 779     }
 780
 781     QImage colortable(m_colortable_name.toLocalFile());
 782     QImage sizetable(m_sizetable_name.toLocalFile());
 783     QImage opacitytable(m_opacitytable_name.toLocalFile());
 784     m_material = new UltraMaterial();
 785     if(colortable.isNull())
 786         colortable = QImage(":defaultshaders/identitytable.png");
 787     if(sizetable.isNull())
 788         sizetable = QImage(":defaultshaders/identitytable.png");
 789     if(opacitytable.isNull())
 790         opacitytable = QImage(":defaultshaders/defaultFadeInOut.png");
 791     Q_ASSERT(!colortable.isNull());
 792     Q_ASSERT(!sizetable.isNull());
 793     Q_ASSERT(!opacitytable.isNull());
 794     m_material->colortable = sceneGraphEngine()->createTextureFromImage(colortable);
 795     m_material->sizetable = sceneGraphEngine()->createTextureFromImage(sizetable);
 796     m_material->opacitytable = sceneGraphEngine()->createTextureFromImage(opacitytable);
 797
 798     m_material->texture = sceneGraphEngine()->createTextureFromImage(image);
 799     m_material->texture->setFiltering(QSGTexture::Linear);
 800
 801     m_material->framecount = 1;
 802     if(m_spriteEngine){
 803         m_material->framecount = m_spriteEngine->maxFrames();
 804         m_spriteEngine->setCount(m_count);
 805     }
 806
 807     m_node = new QSGGeometryNode();
 808     m_node->setGeometry(g);
 809     m_node->setMaterial(m_material);
 810
 811     m_last_particle = 0;
 812
 813     return m_node;
 814 }
 815
 816 QSGNode *QSGImageParticle::updatePaintNode(QSGNode *, UpdatePaintNodeData *)
 817 {
 818     if(m_pleaseReset){
 819         if(m_node){
 820             if(perfLevel == 1){
 821                 qDebug() << "Beta";
 822                 m_lastData = qMalloc(m_count*sizeof(SimpleVertices));//TODO: Account for count_changed possibility
 823                 memcpy(m_lastData, m_node->geometry()->vertexData(), m_count * sizeof(SimpleVertices));//TODO: Multiple levels
 824             }
 825             m_lastLevel = perfLevel;
 826             delete m_node;
 827         }
 828         if(m_material)
 829             delete m_material;
 830
 831         m_node = 0;
 832         m_material = 0;
 833         m_pleaseReset = false;
 834     }
 835
 836     if(m_system && m_system->isRunning())
 837         prepareNextFrame();
 838     if (m_node){
 839         update();
 840         m_node->markDirty(QSGNode::DirtyMaterial);
 841     }
 842
 843     return m_node;
 844 }
 845
 846 void QSGImageParticle::prepareNextFrame()
 847 {
 848     if (m_node == 0){    //TODO: Staggered loading (as emitted)
 849         m_node = buildParticleNode();
 850         if(m_node == 0)
 851             return;
 852         qDebug() << "Feature level: " << perfLevel;
 853     }
 854     qint64 timeStamp = m_system->systemSync(this);
 855
 856     qreal time = timeStamp / 1000.;
 857     m_material->timestamp = time;
 858
 859     //Advance State
 860     if(m_spriteEngine){//perfLevel == Sprites?
 861         m_material->animcount = m_spriteEngine->spriteCount();
 862         UltraVertices *particles = (UltraVertices *) m_node->geometry()->vertexData();
 863         m_spriteEngine->updateSprites(timeStamp);
 864         for(int i=0; i<m_count; i++){
 865             UltraVertices &p = particles[i];
 866             int curIdx = m_spriteEngine->spriteState(i);
 867             if(curIdx != p.v1.animIdx){
 868                 p.v1.animIdx = p.v2.animIdx = p.v3.animIdx = p.v4.animIdx = curIdx;
 869                 p.v1.animT = p.v2.animT = p.v3.animT = p.v4.animT = m_spriteEngine->spriteStart(i)/1000.0;
 870                 p.v1.frameCount = p.v2.frameCount = p.v3.frameCount = p.v4.frameCount = m_spriteEngine->spriteFrames(i);
 871                 p.v1.frameDuration = p.v2.frameDuration = p.v3.frameDuration = p.v4.frameDuration = m_spriteEngine->spriteDuration(i);
 872             }
 873         }
 874     }else{
 875         m_material->animcount = 1;
 876     }
 877 }
 878
 879 template <typename VT>
 880 IntermediateVertices* transplant(IntermediateVertices* iv, VT &v)
 881 {//Deliberate typemangling cast
 882     iv->v1 = (UltraVertex*)&(v.v1);
 883     iv->v2 = (UltraVertex*)&(v.v2);
 884     iv->v3 = (UltraVertex*)&(v.v3);
 885     iv->v4 = (UltraVertex*)&(v.v4);
 886     return iv;
 887 }
 888
 889 IntermediateVertices* QSGImageParticle::fetchIntermediateVertices(int pos)
 890 {
 891     //Note that this class ruins typesafety for you. Maybe even thread safety.
 892     //TODO: Something better, possibly with templates or inheritance
 893     static IntermediateVertices iv;
 894     SimpleVertices *sv;
 895     UltraVertices *uv;
 896     switch(perfLevel){
 897         case Simple:
 898             sv = (SimpleVertices *) m_node->geometry()->vertexData();
 899             return transplant(&iv, sv[pos]);
 900         case Coloured:
 901         case Deformable:
 902         case Tabled:
 903         case Sprites:
 904         default:
 905             uv = (UltraVertices *) m_node->geometry()->vertexData();
 906             return transplant(&iv,uv[pos]);
 907     }
 908 }
 909
 910 void QSGImageParticle::reloadColor(const Color4ub &c, QSGParticleData* d)
 911 {
 912     UltraVertices *particles = (UltraVertices *) m_node->geometry()->vertexData();
 913     int pos = particleTypeIndex(d);
 914     UltraVertices &p = particles[pos];
 915     p.v1.color = p.v2.color = p.v3.color = p.v4.color = c;
 916 }
 917
 918 void QSGImageParticle::reload(QSGParticleData *d)
 919 {
 920     if (m_node == 0)
 921         return;
 922
 923     int pos = particleTypeIndex(d);
 924     IntermediateVertices* p = fetchIntermediateVertices(pos);
 925
 926     //Perhaps we could be more efficient?
 927     vertexCopy(*p->v1, d->pv);
 928     vertexCopy(*p->v2, d->pv);
 929     vertexCopy(*p->v3, d->pv);
 930     vertexCopy(*p->v4, d->pv);
 931 }
 932
 933 void QSGImageParticle::load(QSGParticleData *d)
 934 {
 935     if (m_node == 0)
 936         return;
 937
 938     int pos = particleTypeIndex(d);
 939     IntermediateVertices* p = fetchIntermediateVertices(pos);//Remember this removes typesafety!
 940     Color4ub color;
 941     qreal redVariation = m_color_variation + m_redVariation;
 942     qreal greenVariation = m_color_variation + m_greenVariation;
 943     qreal blueVariation = m_color_variation + m_blueVariation;
 944     switch(perfLevel){//Fall-through is intended on all of them
 945         case Sprites:
 946             // Initial Sprite State
 947             p->v1->animT = p->v2->animT = p->v3->animT = p->v4->animT = p->v1->t;
 948             p->v1->animIdx = p->v2->animIdx = p->v3->animIdx = p->v4->animIdx = 0;
 949             if(m_spriteEngine){
 950                 m_spriteEngine->startSprite(pos);
 951                 p->v1->frameCount = p->v2->frameCount = p->v3->frameCount = p->v4->frameCount = m_spriteEngine->spriteFrames(pos);
 952                 p->v1->frameDuration = p->v2->frameDuration = p->v3->frameDuration = p->v4->frameDuration = m_spriteEngine->spriteDuration(pos);
 953             }else{
 954                 p->v1->frameCount = p->v2->frameCount = p->v3->frameCount = p->v4->frameCount = 1;
 955                 p->v1->frameDuration = p->v2->frameDuration = p->v3->frameDuration = p->v4->frameDuration = 9999;
 956             }
 957         case Tabled:
 958         case Deformable:
 959             //Initial Rotation
 960             if(m_xVector){
 961                 const QPointF &ret = m_xVector->sample(QPointF(d->pv.x, d->pv.y));
 962                 p->v1->xx = p->v2->xx = p->v3->xx = p->v4->xx = ret.x();
 963                 p->v1->xy = p->v2->xy = p->v3->xy = p->v4->xy = ret.y();
 964             }
 965             if(m_yVector){
 966                 const QPointF &ret = m_yVector->sample(QPointF(d->pv.x, d->pv.y));
 967                 p->v1->yx = p->v2->yx = p->v3->yx = p->v4->yx = ret.x();
 968                 p->v1->yy = p->v2->yy = p->v3->yy = p->v4->yy = ret.y();
 969             }
 970             p->v1->rotation = p->v2->rotation = p->v3->rotation = p->v4->rotation =
 971                     (m_rotation + (m_rotationVariation - 2*((qreal)rand()/RAND_MAX)*m_rotationVariation) ) * CONV;
 972             p->v1->rotationSpeed = p->v2->rotationSpeed = p->v3->rotationSpeed = p->v4->rotationSpeed =
 973                     (m_rotationSpeed + (m_rotationSpeedVariation - 2*((qreal)rand()/RAND_MAX)*m_rotationSpeedVariation) ) * CONV;
 974             p->v1->autoRotate = p->v2->autoRotate = p->v3->autoRotate = p->v4->autoRotate = m_autoRotation?1.0:0.0;
 975         case Coloured:
 976             //Color initialization
 977             // Particle color
 978             color.r = m_color.red() * (1 - redVariation) + rand() % 256 * redVariation;
 979             color.g = m_color.green() * (1 - greenVariation) + rand() % 256 * greenVariation;
 980             color.b = m_color.blue() * (1 - blueVariation) + rand() % 256 * blueVariation;
 981             color.a = m_alpha * m_color.alpha() * (1 - m_alphaVariation) + rand() % 256 * m_alphaVariation;
 982             p->v1->color = p->v2->color = p->v3->color = p->v4->color = color;
 983         default:
 984             break;
 985     }
 986
 987     vertexCopy(*p->v1, d->pv);
 988     vertexCopy(*p->v2, d->pv);
 989     vertexCopy(*p->v3, d->pv);
 990     vertexCopy(*p->v4, d->pv);
 991 }
 992
 993 QT_END_NAMESPACE