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166 lines
5.3 KiB
C++
166 lines
5.3 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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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 MixerManager;
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/**
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* Base classes for modular backends.
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*
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* They wrap 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 these classes, will need to implement
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* these functions on its own:
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* OSystem::pollEvent()
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* OSystem::createMutex()
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* OSystem::getMillis()
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* OSystem::delayMillis()
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* OSystem::getTimeAndDate()
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* OSystem::quit()
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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 ModularGraphicsBackend : virtual public BaseBackend {
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public:
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ModularGraphicsBackend();
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virtual ~ModularGraphicsBackend();
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/** @name Features */
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//@{
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bool hasFeature(Feature f) override;
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void setFeatureState(Feature f, bool enable) override;
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bool getFeatureState(Feature f) override;
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//@}
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/** @name Graphics */
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//@{
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GraphicsManager *getGraphicsManager();
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const GraphicsMode *getSupportedGraphicsModes() const override;
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int getDefaultGraphicsMode() const override;
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bool setGraphicsMode(int mode, uint flags = kGfxModeNoFlags) override;
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int getGraphicsMode() const override;
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bool setShader(const Common::String &name) override final;
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const GraphicsMode *getSupportedStretchModes() const override final;
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int getDefaultStretchMode() const override final;
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bool setStretchMode(int mode) override final;
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int getStretchMode() const override final;
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uint getDefaultScaler() const override final;
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uint getDefaultScaleFactor() const override final;
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using BaseBackend::setScaler;
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bool setScaler(uint mode, int factor) override final;
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uint getScaler() const override final;
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uint getScaleFactor() const override final;
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#ifdef USE_RGB_COLOR
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Graphics::PixelFormat getScreenFormat() const override final;
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Common::List<Graphics::PixelFormat> getSupportedFormats() const override final;
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#endif
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void initSize(uint width, uint height, const Graphics::PixelFormat *format = NULL) override final;
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void initSizeHint(const Graphics::ModeList &modes) override final;
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int getScreenChangeID() const override final;
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void beginGFXTransaction() override final;
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OSystem::TransactionError endGFXTransaction() override final;
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int16 getHeight() override final;
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int16 getWidth() override final;
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PaletteManager *getPaletteManager() override final;
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void copyRectToScreen(const void *buf, int pitch, int x, int y, int w, int h) override final;
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Graphics::Surface *lockScreen() override final;
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void unlockScreen() override final;
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void fillScreen(uint32 col) override final;
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void updateScreen() override final;
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void setShakePos(int shakeXOffset, int shakeYOffset) override final;
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void setFocusRectangle(const Common::Rect& rect) override final;
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void clearFocusRectangle() override final;
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void showOverlay(bool inGUI) override final;
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void hideOverlay() override final;
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bool isOverlayVisible() const override final;
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Graphics::PixelFormat getOverlayFormat() const override final;
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void clearOverlay() override final;
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void grabOverlay(Graphics::Surface &surface) override final;
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void copyRectToOverlay(const void *buf, int pitch, int x, int y, int w, int h) override final;
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int16 getOverlayHeight() override final;
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int16 getOverlayWidth() override final;
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float getHiDPIScreenFactor() const override final;
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bool showMouse(bool visible) override final;
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void warpMouse(int x, int y) override final;
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void setMouseCursor(const void *buf, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor, bool dontScale = false, const Graphics::PixelFormat *format = NULL, const byte *mask = NULL) override final;
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void setCursorPalette(const byte *colors, uint start, uint num) override final;
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bool lockMouse(bool lock) override final;
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//@}
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/** @name Miscellaneous */
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//@{
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void displayMessageOnOSD(const Common::U32String &msg) override final;
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void displayActivityIconOnOSD(const Graphics::Surface *icon) override final;
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void saveScreenshot() override final;
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//@}
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protected:
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/** @name Managers variables */
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//@{
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GraphicsManager *_graphicsManager;
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//@}
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};
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class ModularMixerBackend : virtual public BaseBackend {
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public:
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ModularMixerBackend();
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virtual ~ModularMixerBackend();
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/** @name Sound */
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//@{
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virtual MixerManager *getMixerManager();
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Audio::Mixer *getMixer() override final;
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//@}
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protected:
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/** @name Managers variables */
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//@{
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MixerManager *_mixerManager;
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//@}
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};
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#endif
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