Class

CoglRenderer

Description [src] 

final class Cogl.Renderer : GObject.Object
{
  /* No available fields */
}

Choosing a means to render

A CoglRenderer represents a means to render. It encapsulates the selection of an underlying driver, such as OpenGL or OpenGL-ES and a selection of a window system binding API such as GLX or EGL.

A CoglRenderer has two states, “unconnected” and “connected”. When a renderer is first instantiated using cogl_renderer_new() it is unconnected so that it can be configured and constraints can be specified for how the backend driver and window system should be chosen.

After configuration a CoglRenderer can (optionally) be explicitly connected using cogl_renderer_connect() which allows for the handling of connection errors so that fallback configurations can be tried if necessary. Applications that don’t support any fallbacks though can skip using cogl_renderer_connect() and leave Cogl to automatically connect the renderer.

Once you have a configured CoglRenderer it can be used to create a CoglDisplay object using cogl_display_new().

Hierarchy

hierarchy this CoglRenderer ancestor_0 GObject ancestor_0--this

Ancestors

Constructors

cogl_renderer_new

Instantiates a new (unconnected) CoglRenderer object. A CoglRenderer represents a means to render. It encapsulates the selection of an underlying driver, such as OpenGL or OpenGL-ES and a selection of a window system binding API such as GLX or EGL.

Instance methods

cogl_renderer_bind_api
No description available.

cogl_renderer_connect

Connects the configured renderer. Renderer connection isn’t a very active process, it basically just means validating that any given constraint criteria can be satisfied and that a usable driver and window system backend can be found.

cogl_renderer_create_dma_buf

Creates a new CoglFramebuffer with width x height, with pixel format format, and exports the new framebuffer’s DMA buffer handle.

cogl_renderer_get_driver_id

Queries what underlying driver is being used by Cogl.

cogl_renderer_get_implicit_drm_modifier
No description available.

cogl_renderer_get_proc_address

Gets a pointer to a given GL or GL ES extension function. This acts as a wrapper around glXGetProcAddress() or whatever is the appropriate function for the current backend.

cogl_renderer_get_winsys_id

Queries which window system backend Cogl has chosen to use.

cogl_renderer_handle_event

Processes a single event.

cogl_renderer_is_dma_buf_supported
No description available.

cogl_renderer_is_implicit_drm_modifier
No description available.

cogl_renderer_query_drm_modifiers
No description available.

cogl_renderer_set_driver

Requests that Cogl should try to use a specific underlying driver for rendering.

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

Signals

Signals inherited from GObject (1)
GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

Class structure 

struct CoglRendererClass {
  GObjectClass parent_class;
  
}

No description available.

Class members
parent_class: GObjectClass

No description available.