impeller::scene::importer::VerticesBuilder Class Reference

#include <vertices_builder.h>

Inheritance diagram for impeller::scene::importer::VerticesBuilder:

Classes
struct	AttributeProperties
struct	ComponentProperties

Public Types
enum class	ComponentType {   kSignedByte = 5120 , kUnsignedByte , kSignedShort , kUnsignedShort ,   kSignedInt , kUnsignedInt , kFloat }
enum class	AttributeType {   kPosition , kNormal , kTangent , kTextureCoords ,   kColor , kJoints , kWeights }
using	ComponentConverter = std::function< Scalar(const void *source, size_t byte_offset, bool normalized)>
using	AttributeWriter = std::function< void(Scalar *destination, const void *source, const ComponentProperties &component_props, const AttributeProperties &attribute_props)>

Public Member Functions
	VerticesBuilder ()
virtual	~VerticesBuilder ()
virtual void	WriteFBVertices (fb::MeshPrimitiveT &primitive) const =0
virtual void	SetAttributeFromBuffer (AttributeType attribute, ComponentType component_type, const void *buffer_start, size_t attribute_stride_bytes, size_t attribute_count)=0

Static Public Member Functions
static std::unique_ptr< VerticesBuilder >	MakeUnskinned ()
static std::unique_ptr< VerticesBuilder >	MakeSkinned ()

Static Protected Member Functions
static void	WriteAttribute (void *destination, size_t destination_stride_bytes, AttributeType attribute, ComponentType component_type, const void *source, size_t attribute_stride_bytes, size_t attribute_count)

Detailed Description

VerticesBuilder

Definition at line 22 of file vertices_builder.h.

Member Typedef Documentation

AttributeWriter

using impeller::scene::importer::VerticesBuilder::AttributeWriter = std::function<void(Scalar* destination, const void* source, const ComponentProperties& component_props, const AttributeProperties& attribute_props)>

Definition at line 56 of file vertices_builder.h.

ComponentConverter

using impeller::scene::importer::VerticesBuilder::ComponentConverter = std::function< Scalar(const void* source, size_t byte_offset, bool normalized)>

Definition at line 48 of file vertices_builder.h.

Member Enumeration Documentation

AttributeType

enum class impeller::scene::importer::VerticesBuilder::AttributeType

strong

Enumerator
kPosition
kNormal
kTangent
kTextureCoords
kColor
kJoints
kWeights

Definition at line 38 of file vertices_builder.h.

                           {
    kPosition,
    kNormal,
    kTangent,
    kTextureCoords,
    kColor,
    kJoints,
    kWeights,
  };

ComponentType

enum class impeller::scene::importer::VerticesBuilder::ComponentType

strong

Enumerator
kSignedByte
kUnsignedByte
kSignedShort
kUnsignedShort
kSignedInt
kUnsignedInt
kFloat

Definition at line 28 of file vertices_builder.h.

                           {
    kSignedByte = 5120,
    kUnsignedByte,
    kSignedShort,
    kUnsignedShort,
    kSignedInt,
    kUnsignedInt,
    kFloat,
  };

Constructor & Destructor Documentation

VerticesBuilder()

impeller::scene::importer::VerticesBuilder::VerticesBuilder ( )

default

~VerticesBuilder()

impeller::scene::importer::VerticesBuilder::~VerticesBuilder ( )

virtualdefault

Member Function Documentation

MakeSkinned()

std::unique_ptr< VerticesBuilder > impeller::scene::importer::VerticesBuilder::MakeSkinned ( )

static

Definition at line 29 of file vertices_builder.cc.

                                                            {
  return std::make_unique<SkinnedVerticesBuilder>();
}

MakeUnskinned()

std::unique_ptr< VerticesBuilder > impeller::scene::importer::VerticesBuilder::MakeUnskinned ( )

static

VerticesBuilder

Definition at line 25 of file vertices_builder.cc.

                                                              {
  return std::make_unique<UnskinnedVerticesBuilder>();
}

SetAttributeFromBuffer()

virtual void impeller::scene::importer::VerticesBuilder::SetAttributeFromBuffer ( AttributeType  attribute, ComponentType  component_type, const void *  buffer_start, size_t  attribute_stride_bytes, size_t  attribute_count  )

pure virtual

Implemented in impeller::scene::importer::UnskinnedVerticesBuilder, and impeller::scene::importer::SkinnedVerticesBuilder.

WriteAttribute()

void impeller::scene::importer::VerticesBuilder::WriteAttribute ( void *  destination, size_t  destination_stride_bytes, AttributeType  attribute, ComponentType  component_type, const void *  source, size_t  attribute_stride_bytes, size_t  attribute_count  )

staticprotected

Definition at line 140 of file vertices_builder.cc.

                                                             {
  const ComponentProperties& component_props = kComponentTypes[component_type];
  const AttributeProperties& attribute_props = kAttributeTypes[attribute];
  for (size_t i = 0; i < attribute_count; i++) {
    const uint8_t* src =
        reinterpret_cast<const uint8_t*>(source) + attribute_stride_bytes * i;
    uint8_t* dst = reinterpret_cast<uint8_t*>(destination) +
                   i * destination_stride_bytes + attribute_props.offset_bytes;
 
    attribute_props.write_proc(reinterpret_cast<Scalar*>(dst), src,
                               component_props, attribute_props);
  }
}

WriteFBVertices()

virtual void impeller::scene::importer::VerticesBuilder::WriteFBVertices ( fb::MeshPrimitiveT &  primitive ) const

pure virtual

Implemented in impeller::scene::importer::UnskinnedVerticesBuilder, and impeller::scene::importer::SkinnedVerticesBuilder.

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The documentation for this class was generated from the following files:

• impeller/scene/importer/vertices_builder.h
• impeller/scene/importer/vertices_builder.cc