ultralight::GPUDriver Class Reference

GPUDriver interface, dispatches GPU calls to the native driver. More...

#include <GPUDriver.h>

Public Member Functions
virtual void	BeginSynchronize ()=0
	Called before any commands are dispatched during a frame.
virtual void	EndSynchronize ()=0
	Called after any commands are dispatched during a frame.
virtual uint32_t	NextTextureId ()=0
	Get the next available texture ID.
virtual void	CreateTexture (uint32_t texture_id, Ref< Bitmap > bitmap)=0
	Create a texture with a certain ID and optional bitmap. More...
virtual void	UpdateTexture (uint32_t texture_id, Ref< Bitmap > bitmap)=0
	Update an existing non-RTT texture with new bitmap data.
virtual void	BindTexture (uint8_t texture_unit, uint32_t texture_id)=0
	Bind a texture to a certain texture unit.
virtual void	DestroyTexture (uint32_t texture_id)=0
	Destroy a texture.
virtual uint32_t	NextRenderBufferId ()=0
	Generate the next available render buffer ID.
virtual void	CreateRenderBuffer (uint32_t render_buffer_id, const RenderBuffer &buffer)=0
	Create a render buffer with certain ID and buffer description.
virtual void	BindRenderBuffer (uint32_t render_buffer_id)=0
	Bind a render buffer.
virtual void	ClearRenderBuffer (uint32_t render_buffer_id)=0
	Clear a render buffer (flush pixels)
virtual void	DestroyRenderBuffer (uint32_t render_buffer_id)=0
	Destroy a render buffer.
virtual uint32_t	NextGeometryId ()=0
	Generate the next available geometry ID.
virtual void	CreateGeometry (uint32_t geometry_id, const VertexBuffer &vertices, const IndexBuffer &indices)=0
	Create geometry with certain ID and vertex/index data.
virtual void	UpdateGeometry (uint32_t geometry_id, const VertexBuffer &vertices, const IndexBuffer &indices)=0
	Update existing geometry with new vertex/index data.
virtual void	DrawGeometry (uint32_t geometry_id, uint32_t indices_count, uint32_t indices_offset, const GPUState &state)=0
	Draw geometry using the specific index count/offset and GPUState.
virtual void	DestroyGeometry (uint32_t geometry_id)=0
	Destroy geometry.
virtual void	UpdateCommandList (const CommandList &list)=0
	Update command list (you should copy the commands to your own structure).
virtual bool	HasCommandsPending ()=0
	Check if any commands need drawing.
virtual void	DrawCommandList ()=0
	Iterate through stored command list and dispatch to ClearRenderBuffer or DrawGeometry, respectively. More...

Detailed Description

GPUDriver interface, dispatches GPU calls to the native driver.

By default, Ultralight uses an offscreen, OpenGL GPUDriver that draws each View to an offscreen Bitmap (

See also

View::bitmap). You can override this to provide your own GPUDriver and integrate directly with your own 3D engine.

This is intended to be implemented by users and defined before creating the Renderer.

See also

Platform::set_gpu_driver

Definition at line 166 of file GPUDriver.h.

Member Function Documentation

CreateTexture()

virtual void ultralight::GPUDriver::CreateTexture ( uint32_t  texture_id, Ref< Bitmap >  bitmap  )

pure virtual

Create a texture with a certain ID and optional bitmap.

If the Bitmap is empty (Bitmap::IsEmpty), then a RTT Texture should be created instead.

DrawCommandList()

virtual void ultralight::GPUDriver::DrawCommandList ( )

pure virtual

Iterate through stored command list and dispatch to ClearRenderBuffer or DrawGeometry, respectively.

Command list should be cleared at end of call.

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

• include/Ultralight/platform/GPUDriver.h