int GrInOrderDrawBuffer::concatInstancedDraw(const DrawInfo& info) {
GrAssert(info.isInstanced());
const GeometrySrcState& geomSrc = this->getGeomSrc();
const GrDrawState& drawState = this->getDrawState();
// we only attempt to concat the case when reserved verts are used with a client-specified index
// buffer. To make this work with client-specified VBs we'd need to know if the VB was updated
// between draws.
if (kReserved_GeometrySrcType != geomSrc.fVertexSrc ||
kBuffer_GeometrySrcType != geomSrc.fIndexSrc) {
return 0;
}
// Check if there is a draw info that is compatible that uses the same VB from the pool and
// the same IB
if (kDraw_Cmd != fCmds.back()) {
return 0;
}
DrawRecord* draw = &fDraws.back();
GeometryPoolState& poolState = fGeoPoolStateStack.back();
const GrVertexBuffer* vertexBuffer = poolState.fPoolVertexBuffer;
if (!draw->isInstanced() ||
draw->verticesPerInstance() != info.verticesPerInstance() ||
draw->indicesPerInstance() != info.indicesPerInstance() ||
draw->fVertexBuffer != vertexBuffer ||
draw->fIndexBuffer != geomSrc.fIndexBuffer) {
return 0;
}
// info does not yet account for the offset from the start of the pool's VB while the previous
// draw record does.
int adjustedStartVertex = poolState.fPoolStartVertex + info.startVertex();
if (draw->startVertex() + draw->vertexCount() != adjustedStartVertex) {
return 0;
}
GrAssert(poolState.fPoolStartVertex == draw->startVertex() + draw->vertexCount());
// how many instances can be concat'ed onto draw given the size of the index buffer
int instancesToConcat = this->indexCountInCurrentSource() / info.indicesPerInstance();
instancesToConcat -= draw->instanceCount();
instancesToConcat = GrMin(instancesToConcat, info.instanceCount());
// update the amount of reserved vertex data actually referenced in draws
size_t vertexBytes = instancesToConcat * info.verticesPerInstance() *
drawState.getVertexSize();
poolState.fUsedPoolVertexBytes = GrMax(poolState.fUsedPoolVertexBytes, vertexBytes);
draw->adjustInstanceCount(instancesToConcat);
return instancesToConcat;
}
int GrInOrderDrawBuffer::concatInstancedDraw(const DrawInfo& info) {
SkASSERT(!fCmdBuffer.empty());
SkASSERT(info.isInstanced());
const GeometrySrcState& geomSrc = this->getGeomSrc();
const GrDrawState& drawState = this->getDrawState();
// we only attempt to concat the case when reserved verts are used with a client-specified index
// buffer. To make this work with client-specified VBs we'd need to know if the VB was updated
// between draws.
if (kReserved_GeometrySrcType != geomSrc.fVertexSrc ||
kBuffer_GeometrySrcType != geomSrc.fIndexSrc) {
return 0;
}
// Check if there is a draw info that is compatible that uses the same VB from the pool and
// the same IB
if (kDraw_Cmd != strip_trace_bit(fCmdBuffer.back().fType)) {
return 0;
}
Draw* draw = static_cast<Draw*>(&fCmdBuffer.back());
GeometryPoolState& poolState = fGeoPoolStateStack.back();
const GrVertexBuffer* vertexBuffer = poolState.fPoolVertexBuffer;
if (!draw->fInfo.isInstanced() ||
draw->fInfo.verticesPerInstance() != info.verticesPerInstance() ||
draw->fInfo.indicesPerInstance() != info.indicesPerInstance() ||
draw->vertexBuffer() != vertexBuffer ||
draw->indexBuffer() != geomSrc.fIndexBuffer) {
return 0;
}
// info does not yet account for the offset from the start of the pool's VB while the previous
// draw record does.
int adjustedStartVertex = poolState.fPoolStartVertex + info.startVertex();
if (draw->fInfo.startVertex() + draw->fInfo.vertexCount() != adjustedStartVertex) {
return 0;
}
SkASSERT(poolState.fPoolStartVertex == draw->fInfo.startVertex() + draw->fInfo.vertexCount());
// how many instances can be concat'ed onto draw given the size of the index buffer
int instancesToConcat = this->indexCountInCurrentSource() / info.indicesPerInstance();
instancesToConcat -= draw->fInfo.instanceCount();
instancesToConcat = SkTMin(instancesToConcat, info.instanceCount());
// update the amount of reserved vertex data actually referenced in draws
size_t vertexBytes = instancesToConcat * info.verticesPerInstance() *
drawState.getVertexStride();
poolState.fUsedPoolVertexBytes = SkTMax(poolState.fUsedPoolVertexBytes, vertexBytes);
draw->fInfo.adjustInstanceCount(instancesToConcat);
// update last fGpuCmdMarkers to include any additional trace markers that have been added
if (this->getActiveTraceMarkers().count() > 0) {
if (cmd_has_trace_marker(draw->fType)) {
fGpuCmdMarkers.back().addSet(this->getActiveTraceMarkers());
} else {
fGpuCmdMarkers.push_back(this->getActiveTraceMarkers());
draw->fType = add_trace_bit(draw->fType);
}
}
return instancesToConcat;
}
