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Userland: Add FB_FLUSH ioctl for fbdev

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This commit is contained in:
Sahan Fernando 2021-06-12 22:46:54 +10:00 • committed by Andreas Kling
parent 34e9fa4d3b
commit 974e996d33
5 changed files with 27 additions and 0 deletions
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5
Kernel/API/FB.h
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@ -38,4 +38,9 @@ ALWAYS_INLINE int fb_set_buffer(int fd, int index)
return ioctl(fd, FB_IOCTL_SET_BUFFER, index);
}
ALWAYS_INLINE int fb_flush_buffer(int fd, FBRect* rect)
{
return ioctl(fd, FB_IOCTL_FLUSH_BUFFER, rect);
}
__END_DECLS

9
Userland/Libraries/LibC/sys/ioctl_numbers.h
View file

@ -23,6 +23,13 @@ struct FBResolution {
unsigned height;
};
struct FBRect {
unsigned x;
unsigned y;
unsigned width;
unsigned height;
};
__END_DECLS
enum IOCtlNumber {
@ -43,6 +50,7 @@ enum IOCtlNumber {
FB_IOCTL_SET_RESOLUTION,
FB_IOCTL_GET_BUFFER,
FB_IOCTL_SET_BUFFER,
FB_IOCTL_FLUSH_BUFFER,
SIOCSIFADDR,
SIOCGIFADDR,
SIOCGIFHWADDR,
@ -75,6 +83,7 @@ enum IOCtlNumber {
#define FB_IOCTL_SET_RESOLUTION FB_IOCTL_SET_RESOLUTION
#define FB_IOCTL_GET_BUFFER FB_IOCTL_GET_BUFFER
#define FB_IOCTL_SET_BUFFER FB_IOCTL_SET_BUFFER
#define FB_IOCTL_FLUSH_BUFFER FB_IOCTL_FLUSH_BUFFER
#define SIOCSIFADDR SIOCSIFADDR
#define SIOCGIFADDR SIOCGIFADDR
#define SIOCGIFHWADDR SIOCGIFHWADDR

1
Userland/Services/WindowServer/Compositor.cpp
View file

@ -662,6 +662,7 @@ void Compositor::flush(Screen& screen)
from_ptr = (const Gfx::RGBA32*)((const u8*)from_ptr + pitch);
to_ptr = (Gfx::RGBA32*)((u8*)to_ptr + pitch);
}
screen.flush_display(a_rect.intersected(screen.rect()));
};
for (auto& rect : screen_data.m_flush_rects.rects())
do_flush(rect);

10
Userland/Services/WindowServer/Screen.cpp
View file

@ -316,4 +316,14 @@ void ScreenInput::on_receive_keyboard_data(::KeyEvent kernel_event)
Core::EventLoop::current().post_event(WindowManager::the(), move(message));
}
void Screen::flush_display(const Gfx::IntRect& flush_region)
{
FBRect rect {
.x = static_cast<unsigned>(flush_region.x()) * scale_factor(),
.y = static_cast<unsigned>(flush_region.y()) * scale_factor(),
.width = static_cast<unsigned>(flush_region.width()) * scale_factor(),
.height = static_cast<unsigned>(flush_region.height() * scale_factor())
};
fb_flush_buffer(m_framebuffer_fd, &rect);
}
}

2
Userland/Services/WindowServer/Screen.h
View file

@ -160,6 +160,8 @@ public:
Gfx::IntSize size() const { return { m_virtual_rect.width(), m_virtual_rect.height() }; }
Gfx::IntRect rect() const { return m_virtual_rect; }
void flush_display(const Gfx::IntRect& rect);
private:
Screen(ScreenLayout::Screen&);
bool open_device();