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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
View file

@ -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;
}

6
WindowServer/WSWindowManager.h
View file

@ -63,8 +63,8 @@ public:
Color menu_selection_color() const { return m_menu_selection_color; }
int menubar_menu_margin() const;
int api$menu_add_separator(int menu_id);
int api$menu_add_item(int menu_id, unsigned identifier, String&& text);
int framebuffer_fd() const { return m_framebuffer_fd; }
void set_framebuffer_fd(int fd) { m_framebuffer_fd = fd; }
private:
WSWindowManager();
@ -151,4 +151,6 @@ private:
Color m_menu_selection_color;
WeakPtr<WSMenuBar> m_current_menubar;
WeakPtr<WSMenu> m_current_menu;
int m_framebuffer_fd { -1 };
};

18
WindowServer/main.cpp
View file

@ -12,27 +12,33 @@ void WindowServer_main()
{
WSMessageLoop::the().set_server_process(*current);
current->set_priority(Process::HighPriority);
auto info = current->set_video_resolution(1024, 768);
dbgprintf("Screen is %ux%ux%ubpp\n", info.width, info.height, info.bpp);
int bxvga_fd = current->sys$open("/dev/bxvga", O_RDWR);
ASSERT(bxvga_fd >= 0);
struct BXVGAResolution {
int width;
int height;
};
BXVGAResolution resolution { 1024, 768 };
int rc = current->sys$ioctl(bxvga_fd, 1985, (int)&resolution);
ASSERT(rc == 0);
Syscall::SC_mmap_params params;
memset(&params, 0, sizeof(params));
params.fd = bxvga_fd;
params.prot = PROT_READ | PROT_WRITE;
params.flags = MAP_SHARED;
params.size = info.width * info.height * sizeof(RGBA32) * 2;
params.size = resolution.width * resolution.height * sizeof(RGBA32) * 2;
params.offset = 0;
kprintf("Calling sys$mmap in WS\n");
void* framebuffer = current->sys$mmap(&params);
ASSERT(framebuffer && framebuffer != (void*)-1);
WSScreen screen((dword*)framebuffer, info.width, info.height);
WSScreen screen((dword*)framebuffer, resolution.width, resolution.height);
WSWindowManager::the();
WSWindowManager::the().set_framebuffer_fd(bxvga_fd);
dbgprintf("Entering WindowServer main loop.\n");
WSMessageLoop::the().exec();