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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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef BACKENDS_GRAPHICS_ABSTRACT_H
#define BACKENDS_GRAPHICS_ABSTRACT_H
#include "common/system.h"
#include "common/noncopyable.h"
#include "common/keyboard.h"
#include "graphics/mode.h"
#include "graphics/palette.h"
/**
* Abstract class for graphics manager. Subclasses
* implement the real functionality.
*/
class GraphicsManager : public PaletteManager {
public:
virtual ~GraphicsManager() {}
virtual bool hasFeature(OSystem::Feature f) const = 0;
virtual void setFeatureState(OSystem::Feature f, bool enable) = 0;
virtual bool getFeatureState(OSystem::Feature f) const = 0;
virtual const OSystem::GraphicsMode *getSupportedGraphicsModes() const {
static const OSystem::GraphicsMode noGraphicsModes[] = {{"NONE", "Normal", 0}, {nullptr, nullptr, 0 }};
return noGraphicsModes;
};
virtual int getDefaultGraphicsMode() const { return 0; }
virtual bool setGraphicsMode(int mode) { return (mode == 0); }
virtual void resetGraphicsScale() {}
virtual int getGraphicsMode() const { return 0; }
virtual const OSystem::GraphicsMode *getSupportedShaders() const {
static const OSystem::GraphicsMode no_shader[2] = {{"NONE", "Normal (no shader)", 0}, {0, 0, 0}};
return no_shader;
};
virtual bool setShader(int id) { return false; }
virtual int getShader() const { return 0; }
virtual const OSystem::GraphicsMode *getSupportedStretchModes() const {
static const OSystem::GraphicsMode noStretchModes[] = {{"NONE", "Normal", 0}, {nullptr, nullptr, 0 }};
return noStretchModes;
}
virtual int getDefaultStretchMode() const { return 0; }
virtual bool setStretchMode(int mode) { return false; }
virtual int getStretchMode() const { return 0; }
#ifdef USE_RGB_COLOR
virtual Graphics::PixelFormat getScreenFormat() const = 0;
virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const = 0;
#endif
virtual void initSize(uint width, uint height, const Graphics::PixelFormat *format = NULL) = 0;
virtual void initSizeHint(const Graphics::ModeList &modes) {}
virtual int getScreenChangeID() const = 0;
virtual void beginGFXTransaction() = 0;
virtual OSystem::TransactionError endGFXTransaction() = 0;
virtual int16 getHeight() const = 0;
virtual int16 getWidth() const = 0;
virtual void setPalette(const byte *colors, uint start, uint num) = 0;
virtual void grabPalette(byte *colors, uint start, uint num) const = 0;
virtual void copyRectToScreen(const void *buf, int pitch, int x, int y, int w, int h) = 0;
virtual Graphics::Surface *lockScreen() = 0;
virtual void unlockScreen() = 0;
virtual void fillScreen(uint32 col) = 0;
virtual void updateScreen() = 0;
virtual void setShakePos(int shakeXOffset, int shakeYOffset) = 0;
virtual void setFocusRectangle(const Common::Rect& rect) = 0;
virtual void clearFocusRectangle() = 0;
virtual void showOverlay() = 0;
virtual void hideOverlay() = 0;
virtual Graphics::PixelFormat getOverlayFormat() const = 0;
virtual void clearOverlay() = 0;
virtual void grabOverlay(void *buf, int pitch) const = 0;
virtual void copyRectToOverlay(const void *buf, int pitch, int x, int y, int w, int h) = 0;
virtual int16 getOverlayHeight() const = 0;
virtual int16 getOverlayWidth() const = 0;
virtual bool showMouse(bool visible) = 0;
virtual void warpMouse(int x, int y) = 0;
virtual void setMouseCursor(const void *buf, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor, bool dontScale = false, const Graphics::PixelFormat *format = NULL) = 0;
virtual void setCursorPalette(const byte *colors, uint start, uint num) = 0;
virtual void displayMessageOnOSD(const char *msg) {}
virtual void displayActivityIconOnOSD(const Graphics::Surface *icon) {}
// Graphics::PaletteManager interface
//virtual void setPalette(const byte *colors, uint start, uint num) = 0;
//virtual void grabPalette(byte *colors, uint start, uint num) const = 0;
};
#endif
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