mirror of
https://github.com/fergalmoran/ladybird.git
synced 2026-01-09 10:04:41 +00:00
94ca55cefd
As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
137 lines
4.9 KiB
C++
137 lines
4.9 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "WSScreen.h"
|
|
#include "WSCompositor.h"
|
|
#include "WSEvent.h"
|
|
#include "WSEventLoop.h"
|
|
#include "WSWindowManager.h"
|
|
#include <Kernel/FB.h>
|
|
#include <fcntl.h>
|
|
#include <sys/mman.h>
|
|
#include <unistd.h>
|
|
|
|
static WSScreen* s_the;
|
|
|
|
WSScreen& WSScreen::the()
|
|
{
|
|
ASSERT(s_the);
|
|
return *s_the;
|
|
}
|
|
|
|
WSScreen::WSScreen(unsigned desired_width, unsigned desired_height)
|
|
{
|
|
ASSERT(!s_the);
|
|
s_the = this;
|
|
m_framebuffer_fd = open("/dev/fb0", O_RDWR | O_CLOEXEC);
|
|
ASSERT(m_framebuffer_fd >= 0);
|
|
|
|
if (fb_set_buffer(m_framebuffer_fd, 0) == 0) {
|
|
m_can_set_buffer = true;
|
|
}
|
|
|
|
set_resolution(desired_width, desired_height);
|
|
m_cursor_location = rect().center();
|
|
}
|
|
|
|
WSScreen::~WSScreen()
|
|
{
|
|
}
|
|
|
|
void WSScreen::set_resolution(int width, int height)
|
|
{
|
|
FBResolution resolution { 0, (int)width, (int)height };
|
|
int rc = fb_set_resolution(m_framebuffer_fd, &resolution);
|
|
ASSERT(rc == 0);
|
|
on_change_resolution(resolution.pitch, resolution.width, resolution.height);
|
|
}
|
|
|
|
void WSScreen::on_change_resolution(int pitch, int width, int height)
|
|
{
|
|
if (m_framebuffer) {
|
|
size_t previous_size_in_bytes = m_size_in_bytes;
|
|
int rc = munmap(m_framebuffer, previous_size_in_bytes);
|
|
ASSERT(rc == 0);
|
|
}
|
|
|
|
int rc = fb_get_size_in_bytes(m_framebuffer_fd, &m_size_in_bytes);
|
|
ASSERT(rc == 0);
|
|
|
|
m_framebuffer = (RGBA32*)mmap(nullptr, m_size_in_bytes, PROT_READ | PROT_WRITE, MAP_SHARED, m_framebuffer_fd, 0);
|
|
ASSERT(m_framebuffer && m_framebuffer != (void*)-1);
|
|
|
|
m_pitch = pitch;
|
|
m_width = width;
|
|
m_height = height;
|
|
|
|
m_cursor_location.constrain(rect());
|
|
}
|
|
|
|
void WSScreen::set_buffer(int index)
|
|
{
|
|
ASSERT(m_can_set_buffer);
|
|
int rc = fb_set_buffer(m_framebuffer_fd, index);
|
|
ASSERT(rc == 0);
|
|
}
|
|
|
|
void WSScreen::on_receive_mouse_data(int dx, int dy, int dz, unsigned buttons)
|
|
{
|
|
auto prev_location = m_cursor_location;
|
|
m_cursor_location.move_by(dx, dy);
|
|
m_cursor_location.constrain(rect());
|
|
unsigned prev_buttons = m_mouse_button_state;
|
|
m_mouse_button_state = buttons;
|
|
unsigned changed_buttons = prev_buttons ^ buttons;
|
|
auto post_mousedown_or_mouseup_if_needed = [&](MouseButton button) {
|
|
if (!(changed_buttons & (unsigned)button))
|
|
return;
|
|
auto message = make<WSMouseEvent>(buttons & (unsigned)button ? WSEvent::MouseDown : WSEvent::MouseUp, m_cursor_location, buttons, button, m_modifiers);
|
|
CEventLoop::current().post_event(WSWindowManager::the(), move(message));
|
|
};
|
|
post_mousedown_or_mouseup_if_needed(MouseButton::Left);
|
|
post_mousedown_or_mouseup_if_needed(MouseButton::Right);
|
|
post_mousedown_or_mouseup_if_needed(MouseButton::Middle);
|
|
if (m_cursor_location != prev_location) {
|
|
auto message = make<WSMouseEvent>(WSEvent::MouseMove, m_cursor_location, buttons, MouseButton::None, m_modifiers);
|
|
CEventLoop::current().post_event(WSWindowManager::the(), move(message));
|
|
}
|
|
|
|
if (dz) {
|
|
auto message = make<WSMouseEvent>(WSEvent::MouseWheel, m_cursor_location, buttons, MouseButton::None, m_modifiers, dz);
|
|
CEventLoop::current().post_event(WSWindowManager::the(), move(message));
|
|
}
|
|
|
|
if (m_cursor_location != prev_location)
|
|
WSCompositor::the().invalidate_cursor();
|
|
}
|
|
|
|
void WSScreen::on_receive_keyboard_data(KeyEvent kernel_event)
|
|
{
|
|
m_modifiers = kernel_event.modifiers();
|
|
auto message = make<WSKeyEvent>(kernel_event.is_press() ? WSEvent::KeyDown : WSEvent::KeyUp, kernel_event.key, kernel_event.character, kernel_event.modifiers());
|
|
CEventLoop::current().post_event(WSWindowManager::the(), move(message));
|
|
}
|