File: gfx_defines.h

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/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef AGS_ENGINE_GFX_GFX_DEFINES_H
#define AGS_ENGINE_GFX_GFX_DEFINES_H

#include "ags/shared/core/types.h"
#include "ags/shared/util/geometry.h"

namespace AGS3 {
namespace AGS {
namespace Engine {

// GraphicResolution struct determines image size and color depth
struct GraphicResolution : Size {
	int32_t ColorDepth; // color depth in bits per pixel

	GraphicResolution()
		: ColorDepth(0) {
	}

	GraphicResolution(int32_t width, int32_t height, int32_t color_depth)
		: Size(width, height), ColorDepth(color_depth) {
	}

	GraphicResolution(Size size, int32_t color_depth)
		: Size(size), ColorDepth(color_depth) {
	}

	inline bool IsValid() const {
		return Width > 0 && Height > 0 && ColorDepth > 0;
	}
};

enum WindowMode {
	kWnd_Windowed,      // regular resizable window with a border and a caption
	kWnd_Fullscreen,    // real (aka exclusive) fullscreen mode
	kWnd_FullDesktop    // borderless window filling whole desktop
};

// DisplayMode struct provides extended description of display mode
struct DisplayMode : public GraphicResolution {
	int32_t RefreshRate = 0;
	bool Vsync = false;
	WindowMode Mode = kWnd_Windowed;

	// Tells if this is logically a normal windowed mode
	inline bool IsWindowed() const {
		return Mode == kWnd_Windowed;
	}
	// Tells if this mode defines a real fullscreen, which would require gfx driver to support it
	inline bool IsRealFullscreen() const {
		return Mode == kWnd_Fullscreen;
	}

	DisplayMode() = default;
	DisplayMode(const GraphicResolution & res, WindowMode mode = kWnd_Windowed, int32_t refresh = 0, bool vsync = false)
		: GraphicResolution(res)
		, RefreshRate(refresh)
		, Vsync(vsync)
		, Mode(mode) {
	}
};

} // namespace Engine
} // namespace AGS
} // namespace AGS3

#endif