cpp/openttd-patchpack/source Files · src/progress.h

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r24860:fb2788d47d86 1.4 KiB text/x-c Show Annotation Show as Raw Download as Raw

Michael Lutz

Codechange: [OSX] Only keep a total dirty rect for drawing.

When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.

All other drivers only keep one overall dirty rect, so do it here as well.

/*
 * 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 progress.h Functions related to modal progress. */

#ifndef PROGRESS_H
#define PROGRESS_H

#include <mutex>

static const uint MODAL_PROGRESS_REDRAW_TIMEOUT = 200; ///< Timeout between redraws

/**
 * Check if we are currently in a modal progress state.
 * @return Are we in the modal state?
 */
static inline bool HasModalProgress()
{
	extern bool _in_modal_progress;
	return _in_modal_progress;
}

/**
 * Check if we can use a thread for modal progress.
 * @return Threading usable?
 */
static inline bool UseThreadedModelProgress()
{
	extern bool _use_threaded_modal_progress;
	return _use_threaded_modal_progress;
}

bool IsFirstModalProgressLoop();
void SetModalProgress(bool state);

extern std::mutex _modal_progress_work_mutex;
extern std::mutex _modal_progress_paint_mutex;

#endif /* PROGRESS_H */