//updateParticle
void ParticleFluidEmitter::update(float delta)
{
//tick the emitter
m_time += delta;
m_respawnTime+= delta;
int numberSpawn = 0;
//if respawn time is greater than our release delay then we spawn at least one particle so work out how many to spawn
if(m_respawnTime>m_releaseDelay)
{
numberSpawn = (int)(m_respawnTime/m_releaseDelay);
m_respawnTime -= (numberSpawn * m_releaseDelay);
}
// spawn the required number of particles
for(int count = 0;count < numberSpawn;count++)
{
//get the next free particle
int particleIndex = getNextFreeParticle();
if(particleIndex >=0)
{
//if we got a particle ID then spawn it
addPhysXParticle(particleIndex);
}
}
//check to see if we need to release particles because they are either too old or have hit the particle sink
//lock the particle buffer so we can work on it and get a pointer to read data
PxParticleReadData* rd = m_pf->lockParticleReadData();
// access particle data from PxParticleReadData was OK
if (rd)
{
vector<PxU32> particlesToRemove; //we need to build a list of particles to remove so we can do it all in one go
PxStrideIterator<const PxParticleFlags> flagsIt(rd->flagsBuffer);
PxStrideIterator<const PxVec3> positionIt(rd->positionBuffer);
for (unsigned i = 0; i < rd->validParticleRange; ++i, ++flagsIt, ++positionIt)
{
if (*flagsIt & PxParticleFlag::eVALID)
{
//if particle is either too old or has hit the sink then mark it for removal. We can't remove it here because we buffer is locked
if (*flagsIt & PxParticleFlag::eCOLLISION_WITH_DRAIN)
{
//mark our local copy of the particle free
releaseParticle(i);
//add to our list of particles to remove
particlesToRemove.push_back(i);
}
}
}
// return ownership of the buffers back to the SDK
rd->unlock();
//if we have particles to release then pass the particles to remove to PhysX so it can release them
if(particlesToRemove.size()>0)
{
//create a buffer of particle indicies which we are going to remove
PxStrideIterator<const PxU32> indexBuffer(&particlesToRemove[0]);
//free particles from the physics system
m_pf->releaseParticles(particlesToRemove.size(), indexBuffer);
}
}
}
void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) override {
bool canTweakAlphaForCoverage = this->canTweakAlphaForCoverage();
SkMatrix localMatrix;
if (this->usesLocalCoords() && !this->viewMatrix().invert(&localMatrix)) {
SkDebugf("Cannot invert\n");
return;
}
SkAutoTUnref<const GrGeometryProcessor> gp(create_fill_rect_gp(canTweakAlphaForCoverage,
localMatrix,
this->usesLocalCoords(),
this->coverageIgnored()));
batchTarget->initDraw(gp, pipeline);
size_t vertexStride = gp->getVertexStride();
SkASSERT(canTweakAlphaForCoverage ?
vertexStride == sizeof(GrDefaultGeoProcFactory::PositionColorAttr) :
vertexStride == sizeof(GrDefaultGeoProcFactory::PositionColorCoverageAttr));
int instanceCount = fGeoData.count();
SkAutoTUnref<const GrIndexBuffer> indexBuffer(this->getIndexBuffer(
batchTarget->resourceProvider()));
InstancedHelper helper;
void* vertices = helper.init(batchTarget, kTriangles_GrPrimitiveType, vertexStride,
indexBuffer, kVertsPerAAFillRect, kIndicesPerAAFillRect,
instanceCount);
if (!vertices || !indexBuffer) {
SkDebugf("Could not allocate vertices\n");
return;
}
for (int i = 0; i < instanceCount; i++) {
const Geometry& args = fGeoData[i];
this->generateAAFillRectGeometry(vertices,
i * kVertsPerAAFillRect * vertexStride,
vertexStride,
args.fColor,
args.fViewMatrix,
args.fRect,
args.fDevRect,
canTweakAlphaForCoverage);
}
helper.issueDraw(batchTarget);
}
void RenderState::generateQuadIndexBuffer() {
std::vector<GLushort> indices;
indices.reserve(MAX_QUAD_VERTICES / 4 * 6);
for (size_t i = 0; i < MAX_QUAD_VERTICES; i += 4) {
indices.push_back(i + 2);
indices.push_back(i + 0);
indices.push_back(i + 1);
indices.push_back(i + 1);
indices.push_back(i + 3);
indices.push_back(i + 2);
}
GL::genBuffers(1, &m_quadIndexBuffer);
indexBuffer(m_quadIndexBuffer);
GL::bufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(GLushort),
reinterpret_cast<GLbyte*>(indices.data()), GL_STATIC_DRAW);
}
void DistortionMesh::setIndices()
{
indexBuffer().set();
}
QGeometry *ObjLoader::geometry() const
{
QByteArray bufferBytes;
const int count = m_points.size();
const quint32 elementSize = 3 + (hasTextureCoordinates() ? 2 : 0)
+ (hasNormals() ? 3 : 0)
+ (hasTangents() ? 4 : 0);
const quint32 stride = elementSize * sizeof(float);
bufferBytes.resize(stride * count);
float* fptr = reinterpret_cast<float*>(bufferBytes.data());
for (int index = 0; index < count; ++index) {
*fptr++ = m_points.at(index).x();
*fptr++ = m_points.at(index).y();
*fptr++ = m_points.at(index).z();
if (hasTextureCoordinates()) {
*fptr++ = m_texCoords.at(index).x();
*fptr++ = m_texCoords.at(index).y();
}
if (hasNormals()) {
*fptr++ = m_normals.at(index).x();
*fptr++ = m_normals.at(index).y();
*fptr++ = m_normals.at(index).z();
}
if (hasTangents()) {
*fptr++ = m_tangents.at(index).x();
*fptr++ = m_tangents.at(index).y();
*fptr++ = m_tangents.at(index).z();
*fptr++ = m_tangents.at(index).w();
}
} // of buffer filling loop
QBuffer *buf(new QBuffer(QBuffer::VertexBuffer));
buf->setData(bufferBytes);
QGeometry *geometry = new QGeometry();
QAttribute *positionAttribute = new QAttribute(buf, QAttribute::defaultPositionAttributeName(), QAttribute::Float, 3, count, 0, stride);
geometry->addAttribute(positionAttribute);
quint32 offset = sizeof(float) * 3;
if (hasTextureCoordinates()) {
QAttribute *texCoordAttribute = new QAttribute(buf, QAttribute::defaultTextureCoordinateAttributeName(), QAttribute::Float, 2, count, offset, stride);
geometry->addAttribute(texCoordAttribute);
offset += sizeof(float) * 2;
}
if (hasNormals()) {
QAttribute *normalAttribute = new QAttribute(buf, QAttribute::defaultNormalAttributeName(), QAttribute::Float, 3, count, offset, stride);
geometry->addAttribute(normalAttribute);
offset += sizeof(float) * 3;
}
if (hasTangents()) {
QAttribute *tangentAttribute = new QAttribute(buf, QAttribute::defaultTangentAttributeName(),QAttribute::Float, 4, count, offset, stride);
geometry->addAttribute(tangentAttribute);
offset += sizeof(float) * 4;
}
QByteArray indexBytes;
QAttribute::DataType ty;
if (m_indices.size() < 65536) {
// we can use USHORT
ty = QAttribute::UnsignedShort;
indexBytes.resize(m_indices.size() * sizeof(quint16));
quint16* usptr = reinterpret_cast<quint16*>(indexBytes.data());
for (int i=0; i<m_indices.size(); ++i)
*usptr++ = static_cast<quint16>(m_indices.at(i));
} else {
// use UINT - no conversion needed, but let's ensure int is 32-bit!
ty = QAttribute::UnsignedInt;
Q_ASSERT(sizeof(int) == sizeof(quint32));
indexBytes.resize(m_indices.size() * sizeof(quint32));
memcpy(indexBytes.data(), reinterpret_cast<const char*>(m_indices.data()), indexBytes.size());
}
QBuffer *indexBuffer(new QBuffer(QBuffer::IndexBuffer));
indexBuffer->setData(indexBytes);
QAttribute *indexAttribute = new QAttribute(indexBuffer, ty, 1, m_indices.size());
indexAttribute->setAttributeType(QAttribute::IndexAttribute);
geometry->addAttribute(indexAttribute);
return geometry;
}
void
loadMeshes( CalCoreModel* calCoreModel,
MeshesVector& meshes )
throw (std::runtime_error)
{
const int maxVertices = Constants::MAX_VERTEX_PER_MODEL;
const int maxFaces = Constants::MAX_VERTEX_PER_MODEL * 3;
std::auto_ptr< CalHardwareModel > calHardwareModel( new CalHardwareModel( calCoreModel ) );
osg::ref_ptr< VertexBuffer > vertexBuffer( new VertexBuffer( maxVertices ) );
osg::ref_ptr< WeightBuffer > weightBuffer( new WeightBuffer( maxVertices ) );
osg::ref_ptr< MatrixIndexBuffer > matrixIndexBuffer( new MatrixIndexBuffer( maxVertices ) );
osg::ref_ptr< NormalBuffer > normalBuffer( new NormalBuffer( maxVertices ) );
osg::ref_ptr< NormalBuffer > tangentBuffer( new NormalBuffer( maxVertices ) );
osg::ref_ptr< NormalBuffer > binormalBuffer( new NormalBuffer( maxVertices ) );
osg::ref_ptr< TexCoordBuffer > texCoordBuffer( new TexCoordBuffer( maxVertices ) );
std::vector< CalIndex > indexBuffer( maxFaces*3 );
std::vector< float > floatMatrixIndexBuffer( maxVertices*4 );
calHardwareModel->setVertexBuffer((char*)vertexBuffer->getDataPointer(),
3*sizeof(float));
#ifdef OSG_CAL_BYTE_BUFFERS
std::vector< float > floatNormalBuffer( getVertexCount()*3 );
calHardwareModel->setNormalBuffer((char*)&floatNormalBuffer.begin(),
3*sizeof(float));
#else
calHardwareModel->setNormalBuffer((char*)normalBuffer->getDataPointer(),
3*sizeof(float));
#endif
calHardwareModel->setWeightBuffer((char*)weightBuffer->getDataPointer(),
4*sizeof(float));
calHardwareModel->setMatrixIndexBuffer((char*)&floatMatrixIndexBuffer.front(),
4*sizeof(float));
calHardwareModel->setTextureCoordNum( 1 );
calHardwareModel->setTextureCoordBuffer(0, // texture stage #
(char*)texCoordBuffer->getDataPointer(),
2*sizeof(float));
calHardwareModel->setIndexBuffer( &indexBuffer.front() );
// calHardwareModel->setCoreMeshIds(_activeMeshes);
// if ids not set all meshes will be used at load() time
//std::cout << "calHardwareModel->load" << std::endl;
calHardwareModel->load( 0, 0, Constants::MAX_BONES_PER_MESH );
//std::cout << "calHardwareModel->load ok" << std::endl;
int vertexCount = calHardwareModel->getTotalVertexCount();
// int faceCount = calHardwareModel->getTotalFaceCount();
// std::cout << "vertexCount = " << vertexCount << "; faceCount = " << faceCount << std::endl;
GLubyte* matrixIndexBufferData = (GLubyte*) matrixIndexBuffer->getDataPointer();
for ( int i = 0; i < vertexCount*4; i++ )
{
matrixIndexBufferData[i] = static_cast< GLubyte >( floatMatrixIndexBuffer[i] );
}
#ifdef OSG_CAL_BYTE_BUFFERS
GLbyte* normals = (GLbyte*) normalBuffer->getDataPointer();
for ( int i = 0; i < vertexCount*3; i++ )
{
normals[i] = static_cast< GLbyte >( floatNormalBuffer[i]*127.0 );
}
#endif
// invert UVs for OpenGL (textures are inverted otherwise - for example, see abdulla/klinok)
GLfloat* texCoordBufferData = (GLfloat*) texCoordBuffer->getDataPointer();
for ( float* tcy = texCoordBufferData + 1;
tcy < texCoordBufferData + 2*vertexCount;
tcy += 2 )
{
*tcy = 1.0f - *tcy;
}
// -- And now create meshes data --
int unriggedBoneIndex = calCoreModel->getCoreSkeleton()->getVectorCoreBone().size();
// we add empty bone in ModelData to handle unrigged vertices;
for( int hardwareMeshId = 0; hardwareMeshId < calHardwareModel->getHardwareMeshCount(); hardwareMeshId++ )
{
calHardwareModel->selectHardwareMesh(hardwareMeshId);
int faceCount = calHardwareModel->getFaceCount();
if ( faceCount == 0 )
{
continue; // we ignore empty meshes
}
CalHardwareModel::CalHardwareMesh* hardwareMesh =
&calHardwareModel->getVectorHardwareMesh()[ hardwareMeshId ];
osg::ref_ptr< MeshData > m( new MeshData );
m->name = calCoreModel->getCoreMesh( hardwareMesh->meshId )->getName();
m->coreMaterial = hardwareMesh->pCoreMaterial;
if ( m->coreMaterial == NULL )
{
CalCoreMesh* coreMesh = calCoreModel->getCoreMesh( hardwareMesh->meshId );
CalCoreSubmesh* coreSubmesh = coreMesh->getCoreSubmesh( hardwareMesh->submeshId );
// hardwareMesh->pCoreMaterial =
// coreModel->getCoreMaterial( coreSubmesh->getCoreMaterialThreadId() );
char buf[ 1024 ];
snprintf( buf, 1024,
"pCoreMaterial == NULL for mesh '%s' (mesh material id = %d), verify your mesh file data",
m->name.c_str(),
coreSubmesh->getCoreMaterialThreadId() );
throw std::runtime_error( buf );
}
// -- Create index buffer --
int indexesCount = faceCount * 3;
int startIndex = calHardwareModel->getStartIndex();
if ( indexesCount <= 0x100 )
{
m->indexBuffer = new osg::DrawElementsUByte( osg::PrimitiveSet::TRIANGLES, indexesCount );
GLubyte* data = (GLubyte*)m->indexBuffer->getDataPointer();
const CalIndex* i = &indexBuffer[ startIndex ];
const CalIndex* iEnd = &indexBuffer[ startIndex + indexesCount ];
while ( i < iEnd )
{
*data++ = (GLubyte)*i++;
}
}
else if ( indexesCount <= 0x10000 )
{
m->indexBuffer = new osg::DrawElementsUShort( osg::PrimitiveSet::TRIANGLES, indexesCount );
GLushort* data = (GLushort*)m->indexBuffer->getDataPointer();
const CalIndex* i = &indexBuffer[ startIndex ];
const CalIndex* iEnd = &indexBuffer[ startIndex + indexesCount ];
while ( i < iEnd )
{
*data++ = (GLushort)*i++;
}
}
else
{
m->indexBuffer = new osg::DrawElementsUInt( osg::PrimitiveSet::TRIANGLES, indexesCount );
GLuint* data = (GLuint*)m->indexBuffer->getDataPointer();
const CalIndex* i = &indexBuffer[ startIndex ];
const CalIndex* iEnd = &indexBuffer[ startIndex + indexesCount ];
while ( i < iEnd )
{
*data++ = (GLuint)*i++;
}
}
// -- Create other buffers --
int vertexCount = calHardwareModel->getVertexCount();
int baseVertexIndex = calHardwareModel->getBaseVertexIndex();
#define SUB_BUFFER( _type, _name ) \
new _type( _name->begin() + baseVertexIndex, \
_name->begin() + baseVertexIndex + vertexCount )
m->vertexBuffer = SUB_BUFFER( VertexBuffer, vertexBuffer );
m->weightBuffer = SUB_BUFFER( WeightBuffer, weightBuffer );
m->matrixIndexBuffer = SUB_BUFFER( MatrixIndexBuffer, matrixIndexBuffer );
m->normalBuffer = SUB_BUFFER( NormalBuffer, normalBuffer );
m->texCoordBuffer = SUB_BUFFER( TexCoordBuffer, texCoordBuffer );
// -- Parameters and buffers setup --
m->boundingBox = calculateBoundingBox( m->vertexBuffer.get() );
m->bonesIndices = hardwareMesh->m_vectorBonesIndices;
checkRigidness( m.get(), unriggedBoneIndex );
checkForEmptyTexCoord( m.get() );
generateTangentAndHandednessBuffer( m.get(), &indexBuffer[ startIndex ] );
meshes.push_back( m.get() );
}
}
void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) override {
int instanceCount = fGeoData.count();
SkMatrix invert;
if (this->usesLocalCoords() && !this->viewMatrix().invert(&invert)) {
SkDebugf("Could not invert viewmatrix\n");
return;
}
uint32_t flags = 0;
flags |= this->viewMatrix().isSimilarity() ? kSimilarity_DistanceFieldEffectFlag : 0;
GrTextureParams params(SkShader::kRepeat_TileMode, GrTextureParams::kBilerp_FilterMode);
// Setup GrGeometryProcessor
GrBatchAtlas* atlas = fAtlas;
SkAutoTUnref<GrGeometryProcessor> dfProcessor(
GrDistanceFieldPathGeoProc::Create(this->color(),
this->viewMatrix(),
atlas->getTexture(),
params,
flags,
false));
this->initDraw(batchTarget, dfProcessor, pipeline);
static const int kVertsPerQuad = 4;
static const int kIndicesPerQuad = 6;
SkAutoTUnref<const GrIndexBuffer> indexBuffer(
batchTarget->resourceProvider()->refQuadIndexBuffer());
// allocate vertices
size_t vertexStride = dfProcessor->getVertexStride();
SkASSERT(vertexStride == 2 * sizeof(SkPoint));
const GrVertexBuffer* vertexBuffer;
int vertexCount = kVertsPerQuad * instanceCount;
int firstVertex;
void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride,
vertexCount,
&vertexBuffer,
&firstVertex);
if (!vertices || !indexBuffer) {
SkDebugf("Could not allocate vertices\n");
return;
}
// We may have to flush while uploading path data to the atlas, so we set up the draw here
int maxInstancesPerDraw = indexBuffer->maxQuads();
GrDrawTarget::DrawInfo drawInfo;
drawInfo.setPrimitiveType(kTriangles_GrPrimitiveType);
drawInfo.setStartVertex(0);
drawInfo.setStartIndex(0);
drawInfo.setVerticesPerInstance(kVertsPerQuad);
drawInfo.setIndicesPerInstance(kIndicesPerQuad);
drawInfo.adjustStartVertex(firstVertex);
drawInfo.setVertexBuffer(vertexBuffer);
drawInfo.setIndexBuffer(indexBuffer);
int instancesToFlush = 0;
for (int i = 0; i < instanceCount; i++) {
Geometry& args = fGeoData[i];
// get mip level
SkScalar maxScale = this->viewMatrix().getMaxScale();
const SkRect& bounds = args.fPath.getBounds();
SkScalar maxDim = SkMaxScalar(bounds.width(), bounds.height());
SkScalar size = maxScale * maxDim;
uint32_t desiredDimension;
if (size <= kSmallMIP) {
desiredDimension = kSmallMIP;
} else if (size <= kMediumMIP) {
desiredDimension = kMediumMIP;
} else {
desiredDimension = kLargeMIP;
}
// check to see if path is cached
// TODO: handle stroked vs. filled version of same path
PathData::Key key = { args.fPath.getGenerationID(), desiredDimension };
args.fPathData = fPathCache->find(key);
if (NULL == args.fPathData || !atlas->hasID(args.fPathData->fID)) {
// Remove the stale cache entry
if (args.fPathData) {
fPathCache->remove(args.fPathData->fKey);
fPathList->remove(args.fPathData);
SkDELETE(args.fPathData);
}
SkScalar scale = desiredDimension/maxDim;
args.fPathData = SkNEW(PathData);
if (!this->addPathToAtlas(batchTarget,
dfProcessor,
pipeline,
&drawInfo,
&instancesToFlush,
maxInstancesPerDraw,
atlas,
args.fPathData,
args.fPath,
args.fStroke,
args.fAntiAlias,
desiredDimension,
scale)) {
SkDebugf("Can't rasterize path\n");
return;
}
}
atlas->setLastUseToken(args.fPathData->fID, batchTarget->currentToken());
// Now set vertices
intptr_t offset = reinterpret_cast<intptr_t>(vertices);
offset += i * kVertsPerQuad * vertexStride;
SkPoint* positions = reinterpret_cast<SkPoint*>(offset);
this->drawPath(batchTarget,
atlas,
pipeline,
dfProcessor,
positions,
vertexStride,
this->viewMatrix(),
args.fPath,
args.fPathData);
instancesToFlush++;
}
this->flush(batchTarget, &drawInfo, instancesToFlush, maxInstancesPerDraw);
}
void Font::read(const void * data, size_t size) {
std::istringstream in(std::string(static_cast<const char*>(data), size));
// SignedDistanceFontFile sdff;
// sdff.read(in);
uint8_t header[4];
readStream(in, header);
if (memcmp(header, "SDFF", 4)) {
FAIL("Bad font file");
}
uint16_t version;
readStream(in, version);
// read font name
if (version > 0x0001) {
char c;
readStream(in, c);
while (c) {
mFamily += c;
readStream(in, c);
}
}
// read font data
readStream(in, mLeading);
readStream(in, mAscent);
readStream(in, mDescent);
readStream(in, mSpaceWidth);
mFontSize = mAscent + mDescent;
// read metrics data
mMetrics.clear();
uint16_t count;
readStream(in, count);
for (int i = 0; i < count; ++i) {
uint16_t charcode;
readStream(in, charcode);
Metrics & m = mMetrics[charcode];
readStream(in, m.ul.x);
readStream(in, m.ul.y);
readStream(in, m.size.x);
readStream(in, m.size.y);
readStream(in, m.offset.x);
readStream(in, m.offset.y);
readStream(in, m.d);
m.lr = m.ul + m.size;
}
// read image data
readPngToTexture((const char *) data + in.tellg(), size - in.tellg(),
mTexture, mTextureSize);
std::vector<TextureVertex> vertexData;
std::vector<GLuint> indexData;
float texH = 0, texW = 0, texA = 0;
int characters = 0;
std::for_each(mMetrics.begin(), mMetrics.end(),
[&] ( MetricsData::reference & md ) {
uint16_t id = md.first;
Font::Metrics & m = md.second;
++characters;
GLuint index = (GLuint)vertexData.size();
rectf bounds = getBounds(m, mFontSize);
rectf texBounds = getTexCoords(m);
QuadBuilder qb(bounds, texBounds);
for (int i = 0; i < 4; ++i) {
vertexData.push_back(qb.vertices[i]);
}
m.indexOffset = indexData.size();
indexData.push_back(index + 0);
indexData.push_back(index + 1);
indexData.push_back(index + 2);
indexData.push_back(index + 0);
indexData.push_back(index + 2);
indexData.push_back(index + 3);
});
gl::VertexBufferPtr vertexBuffer(new gl::VertexBuffer(vertexData));
gl::IndexBufferPtr indexBuffer(new gl::IndexBuffer(indexData));
mGeometry = gl::GeometryPtr(
new gl::Geometry(vertexBuffer, indexBuffer, characters * 2,
gl::Geometry::Flag::HAS_TEXTURE));
mGeometry->buildVertexArray();
}
