mirror of
https://github.com/libretro/scummvm.git
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154 lines
5.1 KiB
C++
154 lines
5.1 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef BACKENDS_MODULAR_BACKEND_H
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#define BACKENDS_MODULAR_BACKEND_H
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#include "backends/base-backend.h"
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class GraphicsManager;
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class MutexManager;
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/**
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* Base class for modular backends.
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*
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* It wraps most functions to their manager equivalent, but not
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* all OSystem functions are implemented here.
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*
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* A backend derivated from this class, will need to implement
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* these functions on its own:
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* OSystem::pollEvent()
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* OSystem::getMillis()
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* OSystem::delayMillis()
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* OSystem::getTimeAndDate()
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*
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* And, it should also initialize all the managers variables
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* declared in this class, or override their related functions.
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*/
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class ModularBackend : public BaseBackend {
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public:
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ModularBackend();
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virtual ~ModularBackend();
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/** @name Features */
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//@{
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virtual bool hasFeature(Feature f) override;
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virtual void setFeatureState(Feature f, bool enable) override;
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virtual bool getFeatureState(Feature f) override;
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//@}
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/** @name Graphics */
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//@{
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virtual GraphicsManager *getGraphicsManager();
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virtual const GraphicsMode *getSupportedGraphicsModes() const override;
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virtual int getDefaultGraphicsMode() const override;
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virtual bool setGraphicsMode(int mode) override;
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virtual int getGraphicsMode() const override;
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virtual const GraphicsMode *getSupportedShaders() const override;
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virtual int getShader() const override;
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virtual bool setShader(int id) override;
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virtual const GraphicsMode *getSupportedStretchModes() const override;
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virtual int getDefaultStretchMode() const override;
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virtual bool setStretchMode(int mode) override;
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virtual int getStretchMode() const override;
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virtual void resetGraphicsScale() override;
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#ifdef USE_RGB_COLOR
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virtual Graphics::PixelFormat getScreenFormat() const override;
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virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const override;
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#endif
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virtual void initSize(uint width, uint height, const Graphics::PixelFormat *format = NULL) override;
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virtual void initSizeHint(const Graphics::ModeList &modes) override;
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virtual int getScreenChangeID() const override;
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virtual void beginGFXTransaction() override;
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virtual OSystem::TransactionError endGFXTransaction() override;
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virtual int16 getHeight() override;
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virtual int16 getWidth() override;
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virtual PaletteManager *getPaletteManager() override;
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virtual void copyRectToScreen(const void *buf, int pitch, int x, int y, int w, int h) override;
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virtual Graphics::Surface *lockScreen() override;
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virtual void unlockScreen() override;
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virtual void fillScreen(uint32 col) override;
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virtual void updateScreen() override;
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virtual void setShakePos(int shakeOffset) override;
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virtual void setFocusRectangle(const Common::Rect& rect) override;
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virtual void clearFocusRectangle() override;
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virtual void showOverlay() override;
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virtual void hideOverlay() override;
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virtual Graphics::PixelFormat getOverlayFormat() const override;
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virtual void clearOverlay() override;
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virtual void grabOverlay(void *buf, int pitch) override;
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virtual void copyRectToOverlay(const void *buf, int pitch, int x, int y, int w, int h) override;
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virtual int16 getOverlayHeight() override;
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virtual int16 getOverlayWidth() override;
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virtual bool showMouse(bool visible) override;
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virtual void warpMouse(int x, int y) override;
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virtual void setMouseCursor(const void *buf, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor, bool dontScale = false, const Graphics::PixelFormat *format = NULL) override;
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virtual void setCursorPalette(const byte *colors, uint start, uint num) override;
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//@}
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/** @name Mutex handling */
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//@{
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virtual MutexRef createMutex() override;
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virtual void lockMutex(MutexRef mutex) override;
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virtual void unlockMutex(MutexRef mutex) override;
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virtual void deleteMutex(MutexRef mutex) override;
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//@}
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/** @name Sound */
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//@{
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virtual Audio::Mixer *getMixer() override;
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//@}
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/** @name Miscellaneous */
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//@{
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virtual void quit() override;
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virtual void displayMessageOnOSD(const char *msg) override;
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virtual void displayActivityIconOnOSD(const Graphics::Surface *icon) override;
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//@}
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protected:
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/** @name Managers variables */
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//@{
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MutexManager *_mutexManager;
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GraphicsManager *_graphicsManager;
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Audio::Mixer *_mixer;
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//@}
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};
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#endif
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