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#include "Process.h"
#include "MemoryManager.h"
#include <LibC/errno_numbers.h>
#include <SharedGraphics/Font.h>
#include <WindowServer/WSScreen.h>
#include <WindowServer/WSEventLoop.h>
#include <WindowServer/WSWindow.h>
#include <WindowServer/WSWindowManager.h>
//#define LOG_GUI_SYSCALLS
void Process::initialize_gui_statics()
{
Font::initialize();
WSEventLoop::initialize();
WSWindowManager::initialize();
WSScreen::initialize();
new WSEventLoop;
}
int Process::make_window_id()
{
int new_id = m_next_window_id++;
while (!new_id || m_windows.contains(new_id)) {
new_id = m_next_window_id++;
if (new_id < 0)
new_id = 1;
}
return new_id;
}
static void wait_for_gui_server()
{
// FIXME: Time out after a while and return an error.
while (!WSEventLoop::the().running())
sleep(10);
}
int Process::gui$create_window(const GUI_WindowParameters* user_params)
{
wait_for_gui_server();
if (!validate_read_typed(user_params))
return -EFAULT;
auto params = *user_params;
Rect rect = params.rect;
if (rect.is_empty())
return -EINVAL;
ProcessPagingScope scope(WSEventLoop::the().server_process());
int window_id = make_window_id();
if (!window_id)
return -ENOMEM;
auto window = make<WSWindow>(*this, window_id);
if (!window)
return -ENOMEM;
window->set_title(params.title);
window->set_rect(rect);
m_windows.set(window_id, move(window));
#ifdef LOG_GUI_SYSCALLS
dbgprintf("%s<%u> gui$create_window: %d with rect {%d,%d %dx%d}\n", name().characters(), pid(), window_id, rect.x(), rect.y(), rect.width(), rect.height());
#endif
return window_id;
}
int Process::gui$destroy_window(int window_id)
{
#ifdef LOG_GUI_SYSCALLS
dbgprintf("%s<%u> gui$destroy_window (window_id=%d)\n", name().characters(), pid(), window_id);
#endif
if (window_id < 0)
return -EINVAL;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
m_windows.remove(window_id);
return 0;
}
int Process::gui$get_window_backing_store(int window_id, GUI_WindowBackingStoreInfo* info)
{
#ifdef LOG_GUI_SYSCALLS
dbgprintf("%s<%u> gui$get_window_backing_store (window_id=%d, info=%p)\n", name().characters(), pid(), window_id, info);
#endif
if (!validate_write_typed(info))
return -EFAULT;
if (window_id < 0)
return -EINVAL;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
auto& window = *(*it).value;
WSWindowLocker locker(window);
auto* backing_store = window.backing();
#ifdef BACKING_STORE_DEBUG
dbgprintf("%s<%u> +++ %p[%d] (%dx%d)\n", name().characters(), pid(), backing_store, backing_store->width(), backing_store->height());
#endif
m_retained_backing_stores.append(backing_store);
info->backing_store_id = backing_store;
info->bpp = sizeof(RGBA32);
info->pitch = backing_store->pitch();
info->size = backing_store->size();
info->pixels = reinterpret_cast<RGBA32*>(backing_store->client_region()->laddr().as_ptr());
return 0;
}
int Process::gui$release_window_backing_store(void* backing_store_id)
{
for (size_t i = 0; i < m_retained_backing_stores.size(); ++i) {
if (m_retained_backing_stores[i].ptr() == backing_store_id) {
#ifdef BACKING_STORE_DEBUG
auto* backing_store = m_retained_backing_stores[i].ptr();
dbgprintf("%s<%u> --- %p (%dx%d)\n", name().characters(), pid(), backing_store, backing_store->width(), backing_store->height());
#endif
m_retained_backing_stores.remove(i);
return 0;
}
}
return -EBADBACKING;
}
int Process::gui$invalidate_window(int window_id, const GUI_Rect* rect)
{
if (window_id < 0)
return -EINVAL;
if (rect && !validate_read_typed(rect))
return -EFAULT;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
#ifdef LOG_GUI_SYSCALLS
if (!rect)
dbgprintf("%s<%u> gui$invalidate_window (window_id=%d, rect=(entire))\n", name().characters(), pid(), window_id);
else
dbgprintf("%s<%u> gui$invalidate_window (window_id=%d, rect={%d,%d %dx%d})\n", name().characters(), pid(), window_id, rect->location.x, rect->location.y, rect->size.width, rect->size.height);
#endif
auto& window = *(*it).value;
Rect invalidation_rect;
if (rect) {
WSWindowLocker locker(window);
invalidation_rect = *rect;
}
WSEventLoop::the().post_event(&window, make<WSWindowInvalidationEvent>(invalidation_rect));
WSEventLoop::the().server_process().request_wakeup();
return 0;
}
int Process::gui$get_window_title(int window_id, char* buffer, size_t size)
{
if (window_id < 0)
return -EINVAL;
if (!validate_write(buffer, size))
return -EFAULT;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
auto& window = *(*it).value;
String title;
{
WSWindowLocker locker(window);
title = window.title();
}
if (title.length() > size)
return -ERANGE;
memcpy(buffer, title.characters(), title.length());
return title.length();
}
int Process::gui$set_window_title(int window_id, const char* title, size_t size)
{
if (window_id < 0)
return -EINVAL;
if (!validate_read(title, size))
return -EFAULT;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
auto& window = *(*it).value;
String new_title(title, size);
WSEventLoop::the().post_event(&window, make<WSSetWindowTitle>(move(new_title)));
WSEventLoop::the().server_process().request_wakeup();
return 0;
}
int Process::gui$get_window_rect(int window_id, GUI_Rect* rect)
{
if (window_id < 0)
return -EINVAL;
if (!validate_write_typed(rect))
return -EFAULT;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
auto& window = *(*it).value;
{
WSWindowLocker locker(window);
*rect = window.rect();
}
return 0;
}
int Process::gui$set_window_rect(int window_id, const GUI_Rect* rect)
{
if (window_id < 0)
return -EINVAL;
if (!validate_read_typed(rect))
return -EFAULT;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
auto& window = *(*it).value;
Rect new_rect = *rect;
WSEventLoop::the().post_event(&window, make<WSSetWindowRect>(new_rect));
WSEventLoop::the().server_process().request_wakeup();
return 0;
}
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