mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 05:38:11 +00:00
3837de0573
The only reason for the inheritance was to add FDs to the select set. Since CNotifier is available (and now also quite useful), we can make use of it instead, and remove the inheritance.
104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
#include "WSScreen.h"
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#include "WSCompositor.h"
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#include "WSEvent.h"
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#include "WSEventLoop.h"
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#include "WSWindowManager.h"
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <unistd.h>
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static WSScreen* s_the;
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WSScreen& WSScreen::the()
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{
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ASSERT(s_the);
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return *s_the;
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}
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WSScreen::WSScreen(unsigned width, unsigned height)
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: m_width(width)
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, m_height(height)
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{
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ASSERT(!s_the);
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s_the = this;
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m_cursor_location = rect().center();
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m_framebuffer_fd = open("/dev/bxvga", O_RDWR);
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ASSERT(m_framebuffer_fd >= 0);
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set_resolution(width, height);
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}
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WSScreen::~WSScreen()
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{
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}
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void WSScreen::set_resolution(int width, int height)
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{
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struct BXVGAResolution {
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int width;
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int height;
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};
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BXVGAResolution resolution { (int)width, (int)height };
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int rc = ioctl(m_framebuffer_fd, 1985, (int)&resolution);
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ASSERT(rc == 0);
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if (m_framebuffer) {
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size_t previous_size_in_bytes = m_width * m_height * sizeof(RGBA32) * 2;
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int rc = munmap(m_framebuffer, previous_size_in_bytes);
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ASSERT(rc == 0);
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}
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size_t framebuffer_size_in_bytes = width * height * sizeof(RGBA32) * 2;
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m_framebuffer = (RGBA32*)mmap(nullptr, framebuffer_size_in_bytes, PROT_READ | PROT_WRITE, MAP_SHARED, m_framebuffer_fd, 0);
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ASSERT(m_framebuffer && m_framebuffer != (void*)-1);
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m_width = width;
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m_height = height;
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m_cursor_location.constrain(rect());
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}
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void WSScreen::on_receive_mouse_data(int dx, int dy, int dz, unsigned buttons)
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{
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auto prev_location = m_cursor_location;
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m_cursor_location.move_by(dx, dy);
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m_cursor_location.constrain(rect());
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unsigned prev_buttons = m_mouse_button_state;
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m_mouse_button_state = buttons;
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unsigned changed_buttons = prev_buttons ^ buttons;
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auto post_mousedown_or_mouseup_if_needed = [&](MouseButton button) {
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if (!(changed_buttons & (unsigned)button))
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return;
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auto message = make<WSMouseEvent>(buttons & (unsigned)button ? WSEvent::MouseDown : WSEvent::MouseUp, m_cursor_location, buttons, button, m_modifiers);
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CEventLoop::current().post_event(WSWindowManager::the(), move(message));
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};
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post_mousedown_or_mouseup_if_needed(MouseButton::Left);
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post_mousedown_or_mouseup_if_needed(MouseButton::Right);
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post_mousedown_or_mouseup_if_needed(MouseButton::Middle);
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if (m_cursor_location != prev_location) {
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auto message = make<WSMouseEvent>(WSEvent::MouseMove, m_cursor_location, buttons, MouseButton::None, m_modifiers);
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CEventLoop::current().post_event(WSWindowManager::the(), move(message));
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}
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if (dz) {
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auto message = make<WSMouseEvent>(WSEvent::MouseWheel, m_cursor_location, buttons, MouseButton::None, m_modifiers, dz);
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CEventLoop::current().post_event(WSWindowManager::the(), move(message));
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}
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if (m_cursor_location != prev_location)
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WSCompositor::the().invalidate_cursor();
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}
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void WSScreen::on_receive_keyboard_data(KeyEvent kernel_event)
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{
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m_modifiers = kernel_event.modifiers();
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auto message = make<WSKeyEvent>(kernel_event.is_press() ? WSEvent::KeyDown : WSEvent::KeyUp, kernel_event.key, kernel_event.character, kernel_event.modifiers());
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CEventLoop::current().post_event(WSWindowManager::the(), move(message));
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}
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void WSScreen::set_y_offset(int offset)
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{
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int rc = ioctl(m_framebuffer_fd, 1982, offset);
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ASSERT(rc == 0);
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}
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