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/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file null_v.cpp The video driver that doesn't blit. */
#include "../stdafx.h"
#include "../gfx_func.h"
#include "../blitter/factory.hpp"
#include "../saveload/saveload.h"
#include "../window_func.h"
#include "null_v.h"
#include "../safeguards.h"
/** Factory for the null video driver. */
static FVideoDriver_Null iFVideoDriver_Null;
const char *VideoDriver_Null::Start(const StringList &parm)
{
#ifdef _MSC_VER
/* Disable the MSVC assertion message box. */
_set_error_mode(_OUT_TO_STDERR);
#endif
this->UpdateAutoResolution();
this->ticks = GetDriverParamInt(parm, "ticks", 1000);
_screen.width = _screen.pitch = _cur_resolution.width;
_screen.height = _cur_resolution.height;
_screen.dst_ptr = nullptr;
ScreenSizeChanged();
/* Do not render, nor blit */
DEBUG(misc, 1, "Forcing blitter 'null'...");
BlitterFactory::SelectBlitter("null");
return nullptr;
}
void VideoDriver_Null::Stop() { }
void VideoDriver_Null::MakeDirty(int left, int top, int width, int height) {}
void VideoDriver_Null::MainLoop()
{
uint i;
for (i = 0; i < this->ticks; i++) {
::GameLoop();
::InputLoop();
::UpdateWindows();
}
/* If requested, make a save just before exit. The normal exit-flow is
* not triggered from this driver, so we have to do this manually. */
if (_settings_client.gui.autosave_on_exit) {
DoExitSave();
}
}
bool VideoDriver_Null::ChangeResolution(int w, int h) { return false; }
bool VideoDriver_Null::ToggleFullscreen(bool fs) { return false; }
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