如何直接写入linux framebuffer?
最佳答案
查看 FBIOPUT_VSCREENINFO、ioctl 和 mmap
(我有代码但不在这台电脑上,抱歉)
编辑:这应该让你开始
//open file descriptor and get info
inf fdScreen = open( "devicename", O_RDWR );
fb_var_screeninfo varInfo;
ioctl( fdScreen, FBIOGET_VSCREENINFO, &varInfo );
//set resolution/dpi/color depth/.. in varInfo, then write it back
ioctl( fdScreen, FBIOPUT_VSCREENINFO, &varInfo );
//get writable screen memory; unsigned short here for 16bit color
unsigned short* display = mmap( 0, nScreenSize,
PROT_READ | PROT_WRITE, MAP_SHARED, fdScreen, 0 );
关于c++ - 如何直接写入linux framebuffer?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/1527039/