Flint::PrimitiveArray Class Reference

A CPU-side collection of colored 2-D vertices that can be drawn as primitives. More...

#include <flint/graphics/primitives.h>

Inheritance diagram for Flint::PrimitiveArray:

Collaboration diagram for Flint::PrimitiveArray:

Public Member Functions
	PrimitiveArray (PrimitiveType type)
	Construct a PrimitiveArray with the given topology.
void	setPrimitiveType (PrimitiveType type)
	Change the primitive topology.
void	init (SDL_GPUDevice *device)
	Associate a GPU device (required before draw() is called by the renderer).
void	resize (std::size_t count)
	Resize the vertex array to count entries.
std::size_t	size () const
	Return the current number of vertices.
PrimitiveVertex &	operator[] (std::size_t i)
	Non-const element access.
const PrimitiveVertex &	operator[] (std::size_t i) const
	Const element access.
SDL_GPUPrimitiveType	getSDLPrimitiveType () const
	Map the engine PrimitiveType to the corresponding SDL GPU primitive type.
void	emit (RenderQueue &queue) const override
	Emit this drawable's rendering work for the current frame.
const void *	getTransformedData () const
	Return a pointer to the most recently transformed vertex data.
size_t	getTransformedSize () const
	Return the byte size of the transformed vertex buffer.
size_t	getVertexCount () const
	Return the number of transformed vertices ready for upload.
Public Member Functions inherited from Flint::Drawable
void	setGPUTexture (GPUTexture *texture)
	Associate a texture with this drawable.
GPUTexture *	getGPUTexture () const
	Get the associated GPU texture.

Additional Inherited Members
Protected Attributes inherited from Flint::Drawable
GPUTexture *	m_gpuTexture = nullptr
	Non-owning reference to the GPU texture asset.

Detailed Description

A CPU-side collection of colored 2-D vertices that can be drawn as primitives.

Vertices are specified in world space. On draw(), they are transformed to NDC using the supplied camera view rect and cached in a GPU-ready format. The PrimitivePipeline is responsible for uploading the transformed data and selecting the correct primitive type.

Definition at line 22 of file primitives.h.

---

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

• include/flint/graphics/primitives.h