236 lines
11 KiB
C
236 lines
11 KiB
C
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/*
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** Command & Conquer Generals(tm)
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** Copyright 2025 Electronic Arts Inc.
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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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// //
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// (c) 2001-2003 Electronic Arts Inc. //
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// //
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////////////////////////////////////////////////////////////////////////////////
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// FILE: Display.h ////////////////////////////////////////////////////////////
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// The graphics display singleton
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// Author: Michael S. Booth, March 2001
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#pragma once
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#ifndef _GAME_DISPLAY_H_
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#define _GAME_DISPLAY_H_
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#include <stdio.h>
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#include "Common/SubsystemInterface.h"
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#include "View.h"
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#include "GameClient/Color.h"
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#include "GameClient/GameFont.h"
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class View;
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struct ShroudLevel
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{
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Short m_currentShroud; ///< A Value of 1 means shrouded. 0 is not. Negative is the count of people looking.
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Short m_activeShroudLevel;///< A Value of 0 means passive shroud. Positive is the count of people shrouding.
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};
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class VideoBuffer;
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class VideoStreamInterface;
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class DebugDisplayInterface;
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class Radar;
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class Image;
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class DisplayString;
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enum StaticGameLODLevel;
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/**
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* The Display class implements the Display interface
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*/
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class Display : public SubsystemInterface
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{
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public:
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enum DrawImageMode
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{
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DRAW_IMAGE_SOLID,
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DRAW_IMAGE_GRAYSCALE, //draw image without blending and ignoring alpha
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DRAW_IMAGE_ALPHA, //alpha blend the image into frame buffer
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DRAW_IMAGE_ADDITIVE //additive blend the image into frame buffer
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};
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typedef void (DebugDisplayCallback)( DebugDisplayInterface *debugDisplay, void *userData, FILE *fp = NULL );
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Display();
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virtual ~Display();
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virtual void init( void ) { }; ///< Initialize
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virtual void reset( void ); ///< Reset system
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virtual void update( void ); ///< Update system
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//---------------------------------------------------------------------------------------
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// Display attribute methods
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virtual void setWidth( UnsignedInt width ); ///< Sets the width of the display
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virtual void setHeight( UnsignedInt height ); ///< Sets the height of the display
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virtual UnsignedInt getWidth( void ) { return m_width; } ///< Returns the width of the display
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virtual UnsignedInt getHeight( void ) { return m_height; } ///< Returns the height of the display
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virtual void setBitDepth( UnsignedInt bitDepth ) { m_bitDepth = bitDepth; }
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virtual UnsignedInt getBitDepth( void ) { return m_bitDepth; }
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virtual void setWindowed( Bool windowed ) { m_windowed = windowed; } ///< set windowd/fullscreen flag
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virtual Bool getWindowed( void ) { return m_windowed; } ///< return widowed/fullscreen flag
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virtual Bool setDisplayMode( UnsignedInt xres, UnsignedInt yres, UnsignedInt bitdepth, Bool windowed ); ///<sets screen resolution/mode
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virtual Int getDisplayModeCount(void) {return 0;} ///<return number of display modes/resolutions supported by video card.
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virtual void getDisplayModeDescription(Int modeIndex, Int *xres, Int *yres, Int *bitDepth) {} ///<return description of mode
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virtual void setGamma(Real gamma, Real bright, Real contrast, Bool calibrate) {};
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virtual Bool testMinSpecRequirements(Bool *videoPassed, Bool *cpuPassed, Bool *memPassed,StaticGameLODLevel *idealVideoLevel=NULL, Real *cpuTime=NULL) {*videoPassed=*cpuPassed=*memPassed=true; return true;}
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virtual void doSmartAssetPurgeAndPreload(const char* usageFileName) = 0;
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#if defined(_DEBUG) || defined(_INTERNAL)
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virtual void dumpAssetUsage(const char* mapname) = 0;
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#endif
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//---------------------------------------------------------------------------------------
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// View management
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virtual void attachView( View *view ); ///< Attach the given view to the world
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virtual View *getFirstView( void ) { return m_viewList; } ///< Return the first view of the world
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virtual View *getNextView( View *view )
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{
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if( view )
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return view->getNextView();
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return NULL;
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}
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virtual void drawViews( void ); ///< Render all views of the world
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virtual void updateViews ( void ); ///< Updates state of world views
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virtual VideoBuffer* createVideoBuffer( void ) = 0; ///< Create a video buffer that can be used for this display
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//---------------------------------------------------------------------------------------
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// Drawing management
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virtual void setClipRegion( IRegion2D *region ) = 0; ///< Set clip rectangle for 2D draw operations.
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virtual Bool isClippingEnabled( void ) = 0;
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virtual void enableClipping( Bool onoff ) = 0;
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virtual void draw( void ); ///< Redraw the entire display
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virtual void setTimeOfDay( TimeOfDay tod ) = 0; ///< Set the time of day for this display
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virtual void createLightPulse( const Coord3D *pos, const RGBColor *color, Real innerRadius,Real attenuationWidth,
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UnsignedInt increaseFrameTime, UnsignedInt decayFrameTime//, Bool donut = FALSE
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) = 0;
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/// draw a line on the display in pixel coordinates with the specified color
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virtual void drawLine( Int startX, Int startY, Int endX, Int endY,
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Real lineWidth, UnsignedInt lineColor ) = 0;
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/// draw a line on the display in pixel coordinates with the specified 2 colors
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virtual void drawLine( Int startX, Int startY, Int endX, Int endY,
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Real lineWidth, UnsignedInt lineColor1, UnsignedInt lineColor2 ) = 0;
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/// draw a rect border on the display in pixel coordinates with the specified color
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virtual void drawOpenRect( Int startX, Int startY, Int width, Int height,
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Real lineWidth, UnsignedInt lineColor ) = 0;
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/// draw a filled rect on the display in pixel coords with the specified color
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virtual void drawFillRect( Int startX, Int startY, Int width, Int height,
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UnsignedInt color ) = 0;
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/// Draw a percentage of a rectange, much like a clock
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virtual void drawRectClock(Int startX, Int startY, Int width, Int height, Int percent, UnsignedInt color) = 0;
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virtual void drawRemainingRectClock(Int startX, Int startY, Int width, Int height, Int percent, UnsignedInt color) = 0;
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/// draw an image fit within the screen coordinates
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virtual void drawImage( const Image *image, Int startX, Int startY,
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Int endX, Int endY, Color color = 0xFFFFFFFF, DrawImageMode mode=DRAW_IMAGE_ALPHA) = 0;
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/// draw a video buffer fit within the screen coordinates
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virtual void drawVideoBuffer( VideoBuffer *buffer, Int startX, Int startY,
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Int endX, Int endY ) = 0;
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/// FullScreen video playback
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virtual void playLogoMovie( AsciiString movieName, Int minMovieLength, Int minCopyrightLength );
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virtual void playMovie( AsciiString movieName );
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virtual void stopMovie( void );
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virtual Bool isMoviePlaying(void);
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/// Register debug display callback
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virtual void setDebugDisplayCallback( DebugDisplayCallback *callback, void *userData = NULL );
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virtual DebugDisplayCallback *getDebugDisplayCallback();
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virtual void setShroudLevel(Int x, Int y, CellShroudStatus setting ) = 0; ///< set shroud
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virtual void clearShroud() = 0; ///< empty the entire shroud
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virtual void setBorderShroudLevel(UnsignedByte level) = 0; ///<color that will appear in unused border terrain.
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#if defined(_DEBUG) || defined(_INTERNAL)
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virtual void dumpModelAssets(const char *path) = 0; ///< dump all used models/textures to a file.
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#endif
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virtual void preloadModelAssets( AsciiString model ) = 0; ///< preload model asset
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virtual void preloadTextureAssets( AsciiString texture ) = 0; ///< preload texture asset
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virtual void takeScreenShot(void) = 0; ///< saves screenshot to a file
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virtual void toggleMovieCapture(void) = 0; ///< starts saving frames to an avi or frame sequence
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virtual void toggleLetterBox(void) = 0; ///< enabled letter-boxed display
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virtual void enableLetterBox(Bool enable) = 0; ///< forces letter-boxed display on/off
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virtual Bool isLetterBoxFading( void ) { return FALSE; } ///< returns true while letterbox fades in/out
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virtual void setCinematicText( AsciiString string ) { m_cinematicText = string; }
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virtual void setCinematicFont( GameFont *font ) { m_cinematicFont = font; }
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virtual void setCinematicTextFrames( Int frames ) { m_cinematicTextFrames = frames; }
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virtual Real getAverageFPS( void ) = 0; ///< returns the average FPS.
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virtual Int getLastFrameDrawCalls( void ) = 0; ///< returns the number of draw calls issued in the previous frame
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protected:
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virtual void deleteViews( void ); ///< delete all views
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UnsignedInt m_width, m_height; ///< Dimensions of the display
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UnsignedInt m_bitDepth; ///< bit depth of the display
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Bool m_windowed; ///< TRUE when windowed, FALSE when fullscreen
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View *m_viewList; ///< All of the views into the world
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// Cinematic text data
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AsciiString m_cinematicText; ///< string of the cinematic text that should be displayed
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GameFont *m_cinematicFont; ///< font for cinematic text
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Int m_cinematicTextFrames; ///< count of how long the cinematic text should be displayed
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// Video playback data
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VideoBuffer *m_videoBuffer; ///< Video playback buffer
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VideoStreamInterface *m_videoStream; ///< Video stream;
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AsciiString m_currentlyPlayingMovie; ///< The currently playing video. Used to notify TheScriptEngine of completed videos.
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// Debug display data
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DebugDisplayInterface *m_debugDisplay; ///< Actual debug display
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DebugDisplayCallback *m_debugDisplayCallback; ///< Code to update the debug display
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void *m_debugDisplayUserData; ///< Data for debug display update handler
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Real m_letterBoxFadeLevel; ///<tracks the current alpha level for fading letter-boxed mode in/out.
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Bool m_letterBoxEnabled; ///<current state of letterbox
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UnsignedInt m_letterBoxFadeStartTime; ///< time of letterbox fade start
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Int m_movieHoldTime; ///< time that we hold on the last frame of the movie
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Int m_copyrightHoldTime; ///< time that the copyright must be on the screen
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UnsignedInt m_elapsedMovieTime; ///< used to make sure we show the stuff long enough
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UnsignedInt m_elapsedCopywriteTime; ///< Hold on the last frame until both have expired
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DisplayString *m_copyrightDisplayString;///< this'll hold the display string
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};
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// the singleton
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extern Display *TheDisplay;
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extern void StatDebugDisplay( DebugDisplayInterface *dd, void *, FILE *fp = NULL );
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//Added By Saad
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//Necessary for display resolution confirmation dialog box
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//Holds the previous and current display settings
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typedef struct _DisplaySettings
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{
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Int xRes; //Resolution width
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Int yRes; //Resolution height
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Int bitDepth; //Color Depth
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Bool windowed; //Window mode TRUE: we're windowed, FALSE: we're not windowed
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} DisplaySettings;
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#endif // _GAME_DISPLAY_H_
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