#include <vertices_builder.h>

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

Classes
struct	AttributeProperties

struct	ComponentProperties

Public Types
enum	ComponentType { ComponentType::kSignedByte = 5120, ComponentType::kUnsignedByte, ComponentType::kSignedShort, ComponentType::kUnsignedShort, ComponentType::kSignedInt, ComponentType::kUnsignedInt, ComponentType::kFloat }

enum	AttributeType { AttributeType::kPosition, AttributeType::kNormal, AttributeType::kTangent, AttributeType::kTextureCoords, AttributeType::kColor, AttributeType::kJoints, AttributeType::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 60 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 49 of file vertices_builder.h.

Member Enumeration Documentation

◆ AttributeType

enum 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 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 28 of file vertices_builder.cc.

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

Referenced by impeller::scene::importer::ProcessMeshPrimitive().

◆ MakeUnskinned()

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

static

VerticesBuilder

Definition at line 24 of file vertices_builder.cc.

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

Referenced by impeller::scene::importer::ProcessMeshPrimitive().

◆ 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::SkinnedVerticesBuilder, and impeller::scene::importer::UnskinnedVerticesBuilder.

◆ 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 139 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);
   }
 }

References impeller::scene::importer::kComponentTypes, impeller::scene::importer::VerticesBuilder::AttributeProperties::offset_bytes, and impeller::scene::importer::VerticesBuilder::AttributeProperties::write_proc.

Referenced by impeller::scene::importer::UnskinnedVerticesBuilder::SetAttributeFromBuffer(), and impeller::scene::importer::SkinnedVerticesBuilder::SetAttributeFromBuffer().

◆ WriteFBVertices()

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