DirectFB Reference API Overview - Interfaces

最新推荐文章于 2016-06-23 16:15:34 发布

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#reference #api #interface #access #buffer #object

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本文介绍了DirectFB图形库的主要接口组件，包括核心接口IDirectFB、表面对象接口IDirectFBSurface、调色板接口IDirectFBPalette等。这些接口为开发者提供了从输入设备管理到字体渲染、视频播放等一系列功能。

IDirectFB

Main interface of DirectFB, created by DirectFBCreate().

IDirectFBSurface

Interface to a surface object, being a graphics context for rendering and state control, buffer operations, palette access and sub area translate 'n' clip logic.

IDirectFBPalette

Interface for read/write access to the colors of a palete object and for cloning it.

IDirectFBInputDevice

Input device interface for keymap access, event buffers and state queries.

IDirectFBDisplayLayer

Layer interface for configuration, window stack usage or direct surface access, with shared/exclusive context.

IDirectFBWindow

Interface to a window object, controlling appearance and focus, positioning and stacking, event buffers and surface access.

IDirectFBEventBuffer

Interface to a local event buffer to send/receive events, wait for events, abort waiting for reset buffer.

IDirectFBFont

Font interface for getting metrics, measuring strings or single characters, query/choose/encodings.

IDirectFBImageProvider

Interface to an image provider, retrieving information about the image and rendering it to a surface.

IDirectFBVideoProvider

Interface to a video provider for playback with advanced control and basic stream information.

IDirectFBDataBuffer

Data buffer interface, providing unified access to different kinds of data storage and live feed.

IDirectFBScreen

Interface to different display outputs, encoders, connector settings, power management and synchronization.

IDirectFBGL

OpenGL context of a surface.