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Kernel: Add ioctls to BochsVGADevice for mode setting and page flipping.

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Use these in WindowServer instead of poking at the BochsVGADevice directly.
This commit is contained in:
Andreas Kling 2019-02-16 10:24:55 +01:00
parent 799177feda
commit 468113422f
6 changed files with 50 additions and 16 deletions
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10
WindowServer/WSWindowManager.cpp
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@ -9,7 +9,6 @@
#include <SharedGraphics/Painter.h>
#include <SharedGraphics/CharacterBitmap.h>
#include <AK/StdLibExtras.h>
#include <Kernel/BochsVGADevice.h>
#include <LibC/errno_numbers.h>
#include "WSMenu.h"
#include "WSMenuBar.h"
@ -126,10 +125,11 @@ void WSWindowManager::flip_buffers()
{
swap(m_front_bitmap, m_back_bitmap);
swap(m_front_painter, m_back_painter);
if (m_buffers_are_flipped)
BochsVGADevice::the().set_y_offset(0);
else
BochsVGADevice::the().set_y_offset(m_screen_rect.height());
if (m_framebuffer_fd != -1) {
int new_y_offset = m_buffers_are_flipped ? 0 : m_screen_rect.height();
int rc = current->sys$ioctl(m_framebuffer_fd, 1982, new_y_offset);
ASSERT(rc == 0);
}
m_buffers_are_flipped = !m_buffers_are_flipped;
}