RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 07:07:34 +00:00
Code Issues Activity Actions

Kernel: Add framebuffer ioctls; wrap raw ioctls with a C API

Browse source
This commit is contained in:
Conrad Pankoff 2019-08-18 12:25:22 +10:00 • committed by Andreas Kling
parent 1868523e00
commit 5e46122a82
2 changed files with 44 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

33
Kernel/FB.h Normal file
View file

@ -0,0 +1,33 @@
#pragma once
#include <sys/cdefs.h>
#include <sys/ioctl.h>
__BEGIN_DECLS
int fb_get_size_in_bytes(int fd, size_t* out)
{
return ioctl(fd, FB_IOCTL_GET_SIZE_IN_BYTES, out);
}
int fb_get_resolution(int fd, FBResolution* info)
{
return ioctl(fd, FB_IOCTL_GET_RESOLUTION, info);
}
int fb_set_resolution(int fd, FBResolution* info)
{
return ioctl(fd, FB_IOCTL_SET_RESOLUTION, info);
}
int fb_get_buffer(int fd, int* index)
{
return ioctl(fd, FB_IOCTL_GET_BUFFER, index);
}
int fb_set_buffer(int fd, int index)
{
return ioctl(fd, FB_IOCTL_SET_BUFFER, index);
}
__END_DECLS

11
Libraries/LibC/sys/ioctl_numbers.h
View file

@ -9,6 +9,12 @@ struct winsize {
unsigned short ws_col; unsigned short ws_col;
}; };
struct FBResolution {
int pitch;
int width;
int height;
};
__END_DECLS __END_DECLS
enum IOCtlNumber { enum IOCtlNumber {
@ -22,4 +28,9 @@ enum IOCtlNumber {
TIOCSCTTY, TIOCSCTTY,
TIOCNOTTY, TIOCNOTTY,
TIOCSWINSZ, TIOCSWINSZ,
FB_IOCTL_GET_SIZE_IN_BYTES,
FB_IOCTL_GET_RESOLUTION,
FB_IOCTL_SET_RESOLUTION,
FB_IOCTL_GET_BUFFER,
FB_IOCTL_SET_BUFFER,
}; };