24#ifndef PXR_IMAGING_HD_ST_VBO_SIMPLE_MEMORY_MANAGER_H
25#define PXR_IMAGING_HD_ST_VBO_SIMPLE_MEMORY_MANAGER_H
28#include "pxr/imaging/hdSt/api.h"
29#include "pxr/imaging/hdSt/bufferArrayRange.h"
30#include "pxr/imaging/hdSt/resourceRegistry.h"
31#include "pxr/imaging/hdSt/strategyBase.h"
33#include "pxr/imaging/hd/bufferArray.h"
34#include "pxr/imaging/hd/bufferSpec.h"
35#include "pxr/imaging/hd/bufferSource.h"
37PXR_NAMESPACE_OPEN_SCOPE
51 : _resourceRegistry(resourceRegistry) {}
58 HdBufferSpecVector
const &bufferSpecs,
59 HdBufferArrayUsageHint usageHint);
68 HdBufferSpecVector
const &bufferSpecs,
69 HdBufferArrayUsageHint usageHint)
const;
73 HdBufferArraySharedPtr
const &bufferArray)
const;
77 HdBufferArraySharedPtr
const &bufferArray,
93 , _bufferArray(nullptr)
99 return (
bool)_bufferArray;
115 _numElements = numElements;
116 return _bufferArray->
Resize(numElements);
121 void CopyData(HdBufferSourceSharedPtr
const &bufferSource)
override;
211 using _SimpleBufferArraySharedPtr =
212 std::shared_ptr<_SimpleBufferArray>;
213 using _SimpleBufferArrayRangeSharedPtr =
214 std::shared_ptr<_SimpleBufferArrayRange>;
215 using _SimpleBufferArrayRangePtr =
216 std::weak_ptr<_SimpleBufferArrayRange>;
229 HdBufferSpecVector
const &bufferSpecs,
230 HdBufferArrayUsageHint usageHint);
252 std::vector<HdBufferArrayRangeSharedPtr>
const &ranges,
253 HdBufferArraySharedPtr
const &curRangeOwner)
override;
277 HdStBufferResourceNamedList
const&
GetResources()
const {
return _resourceList;}
285 void _DeallocateResources();
296 size_t _maxBytesPerElement;
297 HgiBufferUsage _bufferUsage;
299 HdStBufferResourceNamedList _resourceList;
301 _SimpleBufferArrayRangeSharedPtr _GetRangeSharedPtr()
const {
303 ? std::static_pointer_cast<_SimpleBufferArrayRange>(
GetRange(0).lock())
304 : _SimpleBufferArrayRangeSharedPtr();
311PXR_NAMESPACE_CLOSE_SCOPE
Similar to a VAO, this object is a bundle of coherent buffers.
HD_API void IncrementVersion()
Increments the version of this buffer array.
HD_API HdBufferArrayRangePtr GetRange(size_t idx) const
Get the attached range at the specified index.
size_t GetVersion() const
Returns the version of this buffer array.
size_t GetRangeCount() const
How many ranges are attached to the buffer array.
Aggregation strategy base class.
size_t AggregationId
Aggregation ID.
Interface class for representing range (subset) locator of HdBufferArray.
A central registry of all GPU resources.
Simple buffer array (non-aggregated).
HDST_API HdStBufferResourceSharedPtr _AddResource(TfToken const &name, HdTupleType tupleType, int offset, int stride)
Adds a new, named GPU resource and returns it.
HDST_API HdStBufferResourceSharedPtr GetResource(TfToken const &name)
Returns the named GPU resource.
HDST_API HdStBufferResourceSharedPtr GetResource() const
Returns the GPU resource.
int GetCapacity() const
Returns current capacity. It could be different from numElements.
HDST_API _SimpleBufferArray(HdStResourceRegistry *resourceRegistry, TfToken const &role, HdBufferSpecVector const &bufferSpecs, HdBufferArrayUsageHint usageHint)
Constructor.
HDST_API void Reallocate(std::vector< HdBufferArrayRangeSharedPtr > const &ranges, HdBufferArraySharedPtr const &curRangeOwner) override
Performs reallocation.
HDST_API bool GarbageCollect() override
perform compaction if necessary, returns true if it becomes empty.
HDST_API void DebugDump(std::ostream &out) const override
Debug output.
HdStBufferResourceNamedList const & GetResources() const
Returns the list of all named GPU resources for this bufferArray.
HDST_API bool Resize(int numElements)
Set to resize buffers. Actual reallocation happens on Reallocate()
HDST_API size_t GetMaxNumElements() const override
Returns the maximum number of elements capacity.
HDST_API ~_SimpleBufferArray() override
Destructor. It invalidates _range.
HDST_API HdBufferSpecVector GetBufferSpecs() const
Reconstructs the bufferspecs and returns it (for buffer splitting)
Specialized buffer array range for SimpleBufferArray.
HDST_API HdStBufferResourceSharedPtr _AddResource(TfToken const &name, HdTupleType tupleType, int offset, int stride)
Adds a new, named GPU resource and returns it.
HDST_API void CopyData(HdBufferSourceSharedPtr const &bufferSource) override
Copy source data into buffer.
size_t GetNumElements() const override
Returns the number of elements allocated.
HDST_API HdBufferArrayUsageHint GetUsageHint() const override
Returns the usage hint from the underlying buffer array.
_SimpleBufferArrayRange(HdStResourceRegistry *resourceRegistry)
Constructor.
HDST_API void SetBufferArray(HdBufferArray *bufferArray) override
Sets the buffer array associated with this buffer;.
int GetCapacity() const
Returns the capacity of allocated area for this range.
void IncrementVersion() override
Increment the version of the buffer array.
bool IsValid() const override
Returns true if this range is valid.
HDST_API bool IsAssigned() const override
Returns true is the range has been assigned to a buffer.
int GetElementOffset() const override
Returns the offset at which this range begins in the underlying buffer array in terms of elements.
HDST_API void DebugDump(std::ostream &out) const override
Debug dump.
bool IsImmutable() const override
Returns true if this range is marked as immutable.
HDST_API size_t GetMaxNumElements() const override
Returns the max number of elements.
HDST_API HdStBufferResourceNamedList const & GetResources() const override
Returns the list of all named GPU resources for this bufferArrayRange.
bool Resize(int numElements) override
Resize memory area for this range.
size_t GetVersion() const override
Returns the version of the buffer array.
void Invalidate()
Make this range invalid.
bool RequiresStaging() const override
Returns true if this needs a staging buffer for CPU to GPU copies.
HDST_API HdStBufferResourceSharedPtr GetResource(TfToken const &name) override
Returns the named GPU resource.
HDST_API HdStBufferResourceSharedPtr GetResource() const override
Returns the GPU resource.
HDST_API VtValue ReadData(TfToken const &name) const override
Read back the buffer content.
HDST_API const void * _GetAggregation() const override
Returns the aggregation container.
int GetByteOffset(TfToken const &resourceName) const override
Returns the byte offset at which this range begins in the underlying buffer array for the given resou...
VBO simple memory manager.
virtual size_t GetResourceAllocation(HdBufferArraySharedPtr const &bufferArray, VtDictionary &result) const
Returns the size of the GPU memory used by the passed buffer array.
virtual HDST_API HdBufferArraySharedPtr CreateBufferArray(TfToken const &role, HdBufferSpecVector const &bufferSpecs, HdBufferArrayUsageHint usageHint)
Factory for creating HdBufferArray managed by HdStVBOSimpleMemoryManager.
virtual HDST_API HdBufferArrayRangeSharedPtr CreateBufferArrayRange()
Factory for creating HdBufferArrayRange.
virtual HDST_API HdStAggregationStrategy::AggregationId ComputeAggregationId(HdBufferSpecVector const &bufferSpecs, HdBufferArrayUsageHint usageHint) const
Returns id for given bufferSpecs to be used for aggregation.
virtual HdBufferSpecVector GetBufferSpecs(HdBufferArraySharedPtr const &bufferArray) const
Returns the buffer specs from a given buffer array.
Token for efficient comparison, assignment, and hashing of known strings.
A map with string keys and VtValue values.
Provides a container which may hold any type, and provides introspection and iteration over array typ...
#define TF_UNUSED(x)
Stops compiler from producing unused argument or variable warnings.
HdTupleType represents zero, one, or more values of the same HdType.