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/* ResidualVM - A 3D game interpreter
*
* ResidualVM 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_SDL_RESVMSDLGRAPHICS_H
#define BACKENDS_GRAPHICS_SDL_RESVMSDLGRAPHICS_H
#include "backends/graphics/sdl/sdl-graphics.h"
#include "common/events.h"
#include "common/rect.h"
#include "math/rect2d.h"
class SdlEventSource;
/**
* Base class for a ResidualVM SDL based graphics manager.
*
* Used to share reusable methods between SDL graphics managers
*/
class ResVmSdlGraphicsManager : public SdlGraphicsManager, public Common::EventObserver {
public:
/**
* Capabilities of the current device
*/
struct Capabilities {
/**
* Desktop resolution
*/
uint desktopWidth;
uint desktopHeight;
/**
* Is the device capable of rendering to OpenGL framebuffers
*/
bool openGLFrameBuffer;
Capabilities() :
desktopWidth(0), desktopHeight(0),
openGLFrameBuffer(false) {}
};
ResVmSdlGraphicsManager(SdlEventSource *source, SdlWindow *window, const Capabilities &capabilities);
virtual ~ResVmSdlGraphicsManager();
// SdlGraphicsManager API
virtual void activateManager() override;
virtual void deactivateManager() override;
virtual void notifyVideoExpose() override;
virtual void notifyMousePos(Common::Point mouse) override;
// GraphicsManager API - Features
virtual void setFeatureState(OSystem::Feature f, bool enable) override;
virtual bool getFeatureState(OSystem::Feature f) override;
// GraphicsManager API - Graphics mode
virtual const OSystem::GraphicsMode *getSupportedGraphicsModes() const override;
virtual int getDefaultGraphicsMode() const override;
virtual bool setGraphicsMode(int mode) override;
virtual int getGraphicsMode() const override;
virtual void resetGraphicsScale() override;
#ifdef USE_RGB_COLOR
virtual Graphics::PixelFormat getScreenFormat() const override { return _screenFormat; }
virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const override;
#endif
virtual void initSize(uint w, uint h, const Graphics::PixelFormat *format = NULL) override;
virtual int getScreenChangeID() const override { return _screenChangeCount; }
virtual void beginGFXTransaction() override;
virtual OSystem::TransactionError endGFXTransaction() override;
protected:
// PaletteManager API
virtual void setPalette(const byte *colors, uint start, uint num) override;
virtual void grabPalette(byte *colors, uint start, uint num) override;
public:
// GraphicsManager API - Draw methods
virtual void copyRectToScreen(const void *buf, int pitch, int x, int y, int w, int h) override;
virtual Graphics::Surface *lockScreen() override;
virtual void unlockScreen() override;
virtual void fillScreen(uint32 col) override;
virtual void setShakePos(int shakeOffset) override;
// GraphicsManager API - Focus Rectangle
virtual void setFocusRectangle(const Common::Rect& rect) override;
virtual void clearFocusRectangle() override;
// GraphicsManager API - Overlay
virtual int16 getOverlayHeight() override { return _overlayHeight; }
virtual int16 getOverlayWidth() override { return _overlayWidth; }
virtual Graphics::PixelFormat getOverlayFormat() const override { return _overlayFormat; }
// GraphicsManager API - Mouse
virtual bool showMouse(bool visible) override;
virtual bool lockMouse(bool lock) override; // ResidualVM specific method
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;
virtual void setCursorPalette(const byte *colors, uint start, uint num) override;
#ifdef USE_OSD
virtual void displayMessageOnOSD(const char *msg) override;
#endif
// Common::EventObserver API
bool notifyEvent(const Common::Event &event) override;
protected:
const Capabilities &_capabilities;
bool _fullscreen;
bool _lockAspectRatio;
uint _engineRequestedWidth, _engineRequestedHeight;
int _screenChangeCount;
bool _overlayVisible;
Graphics::PixelFormat _overlayFormat;
int _overlayWidth, _overlayHeight;
#ifdef USE_RGB_COLOR
Graphics::PixelFormat _screenFormat;
Common::List<Graphics::PixelFormat> _supportedFormats;
#endif
/**
* Places where the game can be drawn
*/
enum GameRenderTarget {
kScreen, /** The game is drawn directly on the screen */
kSubScreen, /** The game is drawn to a surface, which is centered on the screen */
kFramebuffer /** The game is drawn to a framebuffer, which is scaled to fit the screen */
};
/** Select the best draw target according to the specified parameters */
GameRenderTarget selectGameRenderTarget(bool fullscreen, bool accel3d,
bool engineSupportsArbitraryResolutions,
bool framebufferSupported,
bool lockAspectRatio);
/** Compute the size and position of the game rectangle in the screen */
Math::Rect2d computeGameRect(GameRenderTarget gameRenderTarget, uint gameWidth, uint gameHeight,
uint effectiveWidth, uint effectiveHeight);
/** Checks if the render target supports drawing at arbitrary resolutions */
bool canUsePreferredResolution(GameRenderTarget gameRenderTarget, bool engineSupportsArbitraryResolutions);
/** Obtain the user configured fullscreen resolution, or default to the desktop resolution */
Common::Rect getPreferredFullscreenResolution();
};
#endif
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