Files @ r23882:d683a0787bc9
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Location: cpp/openttd-patchpack/source/src/sound/null_s.h - annotation

Nikolas Nyby
Codechange: Don't use SDL_CreateRGBSurfaceWithFormat()

This function requires libSDL 2.0.5 or higher. It looks like we don't
need to use it, and can just use the original SDL_CreateRGBSurface(),
with the masks set to 0, to trigger the default 8-bit format, which is
SDL_PIXELFORMAT_INDEX8.

Closes #7785

Note: this code path is activated by using an 8-bit blitter, like:

./bin/openttd -b 8bpp-simple
/* $Id$ */

/*
 * 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_s.h Base for the sound of silence. */

#ifndef SOUND_NULL_H
#define SOUND_NULL_H

#include "sound_driver.hpp"

/** Implementation of the null sound driver. */
class SoundDriver_Null : public SoundDriver {
public:
	const char *Start(const char * const *param) override { return nullptr; }

	void Stop() override { }
	const char *GetName() const override { return "null"; }
};

/** Factory for the null sound driver. */
class FSoundDriver_Null : public DriverFactoryBase {
public:
	FSoundDriver_Null() : DriverFactoryBase(Driver::DT_SOUND, 1, "null", "Null Sound Driver") {}
	Driver *CreateInstance() const override { return new SoundDriver_Null(); }
};

#endif /* SOUND_NULL_H */