VISUALS USED BY THE FRAME BUFFER DEVICE API

最新推荐文章于 2020-11-25 15:52:49 发布

qwaszx523

最新推荐文章于 2020-11-25 15:52:49 发布

阅读量287

点赞数

分类专栏：显示

显示专栏收录该内容

55 篇文章

订阅专栏

本文介绍了几种常见的图形显示模式，包括单色显示（Monochrome）、伪彩色显示（Pseudocolor）、真彩色显示（Truecolor）及直接彩色显示（Directcolor）。每种模式的特点和工作原理都有详细说明，例如在真彩色模式下，像素值被分解为红、绿、蓝等颜色分量。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Monochrome (FB_VISUAL_MONO01 and FB_VISUAL_MONO10)
-------------------------------------------------
Each pixel is either black or white.

FB_VISUAL_MONO01	/* Monochr. 1=Black 0=White */
FB_VISUAL_MONO10	/* Monochr. 1=White 0=Black */

Pseudo color (FB_VISUAL_PSEUDOCOLOR and FB_VISUAL_STATIC_PSEUDOCOLOR)
---------------------------------------------------------------------
The whole pixel value is fed through a programmable lookup table that has one
color (including red, green, and blue intensities) for each possible pixel
value, and that color is displayed.


True color (FB_VISUAL_TRUECOLOR)
--------------------------------
The pixel value is broken up into red, green, and blue fields.


Direct color (FB_VISUAL_DIRECTCOLOR)
------------------------------------
The pixel value is broken up into red, green, and blue fields, each of which 
are looked up in separate red, green, and blue lookup tables.


Grayscale displays
------------------
Grayscale and static grayscale are special variants of pseudo color and static
pseudo color, where the red, green and blue components are always equal to
each other.