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sdl2crtpng.pas
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sdl2crtpng.pas
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Unit sdl2crtpng;
{
====================================================================
xLib xqtr
====================================================================
This file is part of xlib for FreePascal
https://github.com/xqtr/xlib
This is an implementation of the crt unit, but with SDL2 graphics.
The original idea came when i saw Netrunner app, by g00r00 and after
that i found some code, from an old Mystic BBS version, which included
a unit with exactly what i wanted to do!!! So i took this original unit
and added more features to be a completely usable unit, to build
"terminal" like applications in window servers.
Original code can be found here:
https://github.com/fidosoft/mysticbbs
Unfortunately g00r00 has made his code closed-source so, i had to
"re-invent the wheel", i hope that in the future he may change his mind.
I have to thank him, cause his code is an inspiration for me and i have
learned a lot. So, all credits goes to him.
For contact look at Another Droid BBS [andr01d.zapto.org:9999],
FSXNet and ArakNet.
--------------------------------------------------------------------
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.
}
{$mode objfpc}
{$H-}
{$codepage cp437}
Interface
Uses
{$IFDEF UNIX}
cthreads,
{$ENDIF}
SDL2,
SDL2_mixer,
SDL2_image;
Const
BlockDrawTiming = 150;
keyENTER = #13;
keyESCAPE = #27;
keyHOME = #71;
keyUP = #72;
keyPGUP = #73;
keyLEFT = #75;
keyRIGHT = #77;
keyEND = #79;
keyDOWN = #80;
keyPGDN = #81;
keyINSERT = #82;
keyDELETE = #83;
KeyBackSpace = #8;
KeyTab = #9;
Keyforwardslash = #47;
Keyasterisk = #42;
Keyminus = #45;
Keyplus = #43;
KeyF1 = #59;
KeyF2 = #60;
KeyF3 = #61;
KeyF4 = #62;
KeyF5 = #63;
KeyF6 = #64;
KeyF7 = #65;
KeyF8 = #66;
KeyF9 = #67;
KeyF10 = #68;
KeyF11 = #69;
KeyF12 = #70;
AppInputSize = 128;
SDLFontSpace : Byte = 0;
SDLAppWindowX : Word = 800;
SDLAppWindowY : Word = 600;
mbLEFT = 1;
mbRIGHT = 2;
mbMIDDLE = 3;
mbDown = 4;
mbUp = 5;
mode_80x25 = 1;
mode_80x50 = 2;
mode_132x50 = 3;
{$IFDEF Windows}
CRLF = #13#10;
{$ENDIF}
{$IFDEF Unix}
CRLF = #13#10;
{$ENDIF}
Type
TSDLKeyMap = Record
SDL : Word;
Key : String[2];
Shift : String[2];
Alt : String[2];
Ctrl : String[2];
End;
TScreenChar = Record
Ch : Char;
Attr: Byte;
End;
TScreenLine = Array of TScreenChar;
TScreen = Array of TScreenLine;
TSDLConsole = Class
Buffer : TScreen;
Mode : Byte;
WindowWidth : Integer;
WindowHeight: Integer;
ScreenRect : TSDL_Rect;
isFullScreen: Boolean;
BufferChanged:Boolean;
SoundOn : Boolean;
ClickOn : Boolean;
BellOn : Boolean;
PauseDraw : Boolean;
sClick : PMix_Chunk;
sBell : PMix_Chunk;
ClickThread : PSDL_Thread;
mbButton : Byte;
mbXp : Integer; // mouse pointer pos in pixels
mbYp : Integer; // mouse pointer pos in pixels
mbXc : byte; // mouse pointer pos in blocks/cursor
mbYc : byte; // mouse pointer pos in blocks/cursor
mX : Integer;
mY : Integer;
kpress : boolean;
BufferWidth : Byte;
BufferHeight: Byte;
SDLFontSize : Byte;
SDLFontFile : String;
FontChar : Array[0..255] of TSDL_Rect;
InputEvent : pSDL_EVENT;
ScreenBuf : pSDL_SURFACE;
Screen : pSDL_SURFACE;
Icon : pSDL_SURFACE;
cursor : pSDL_SURFACE;
tile : pSDL_SURFACE;
CopySurface : pSDL_SURFACE;
TileRect : TSDL_Rect;
CopyRect : TSDL_Rect;
FontImg : pSDL_SURFACE;
Window : PSDL_Window;
InputBuffer : Array[1..AppInputSize] of Char;
InputPos : Integer;
InputSize : Integer;
WhereX : Byte;
WhereY : Byte;
TextAttr : Byte;
Seth : Char;
FontHeight : Word;
FontWidth : Word;
CursorOn : Boolean;
EnableCursor: Boolean;
CopyOn : Byte;
OnMouseKey : Procedure(x,y:integer; Button:Byte; State:byte);
Procedure Log(Str:string);
Procedure ScrollBufferUp;
Function GetSDLFGColor:Byte;
Function GetSDLBGColor:Byte;
procedure fillbuffer; // this is only for test purposes.
Procedure ShowMouseCursor;
Constructor Create (InitMode: Byte; Title,FontFile:String);
Destructor Destroy; Override;
Procedure PushInput (Ch: Char);
Procedure PushExt (Ch: Char);
Procedure PushStr (Str: String);
Procedure ProcessEvent;
Procedure CopyClipboard1;
Procedure CopyClipboard2;
Procedure ResizeWindow(w,h:integer);
//Procedure ApplyFontChange(size:integer);
Procedure UpdateScreenBuffer;
Function SetWindowIcon(icn:String):Boolean;
Function Pixel2Cursor(Var R:TSDL_Rect):TSDL_Rect;
Procedure ShowCursor;
Procedure DrawLineSelection;
Procedure DrawBlockSelection;
Procedure Draw;
Procedure ProcessEvents;
Procedure DisableCursor;
Procedure TakeScreenShot(filename:string);
Procedure SetClipboardText(s:string);
Function GetClipBoardText:String;
procedure transrect(r:TSDL_Rect);
Procedure RestoreScreen(sBuf: TScreen);
Procedure SaveScreen(var sBuf: TScreen);
Procedure ClrScr;
procedure ClearEOL;
Function GetAttrAt(AX, AY: Byte): Byte;
Function GetCharAt(AX, AY: Byte): Char;
Procedure SetAttrAt(AAttr, AX, AY: Byte);
Procedure SetCharAt(ACh: Char; AX, AY: Byte);
Procedure SetTextAttr(Attr:Byte);
Procedure GotoXY(x,y:Byte);
Procedure GotoY(y:Byte);
Procedure GotoX(x:Byte);
Procedure WriteChar(Ch:Char);
Procedure WriteStr(Str:String);
Procedure Write(Str:String);
Procedure WriteLn(Str:String);
Procedure WriteXY(X,Y,A:Byte; Str:String);
Procedure WritePipe (Str: String);
Procedure WritePipeB (Str: String);
Procedure WriteXYPipe (X, Y, Attr: Integer; Text: String);
Function KeyPressed : Boolean;
Function ReadKey : Char;
Procedure Delay (MS: LongInt);
Procedure ShowBuffer;
End;
Implementation
Const
SDLKeyMapSize = 21;
SDLKeyMapUS : Array[1..SDLKeyMapSize] of TSDLKeyMap = (
(SDL:SDLK_1; Key:'1'; Shift:'!'; Alt:'1'; CTRL:'1'),
(SDL:SDLK_2; Key:'2'; Shift:'@'; Alt:'2'; CTRL:'2'),
(SDL:SDLK_3; Key:'3'; Shift:'#'; Alt:'3'; CTRL:'3'),
(SDL:SDLK_4; Key:'4'; Shift:'$'; Alt:'4'; CTRL:'4'),
(SDL:SDLK_5; Key:'5'; Shift:'%'; Alt:'5'; CTRL:'5'),
(SDL:SDLK_6; Key:'6'; Shift:'^'; Alt:'6'; CTRL:'6'),
(SDL:SDLK_7; Key:'7'; Shift:'&'; Alt:'7'; CTRL:'7'),
(SDL:SDLK_8; Key:'8'; Shift:'*'; Alt:'8'; CTRL:'8'),
(SDL:SDLK_9; Key:'9'; Shift:'('; Alt:'9'; CTRL:'9'),
(SDL:SDLK_0; Key:'0'; Shift:')'; Alt:'0'; CTRL:'0'),
(SDL:SDLK_SEMICOLON; Key:';'; Shift:':'; Alt:';'; CTRL:';'),
(SDL:SDLK_COMMA; Key:','; Shift:'<'; Alt:','; CTRL:','),
(SDL:SDLK_MINUS; Key:'-'; Shift:'_'; Alt:'-'; CTRL:'-'),
(SDL:SDLK_PERIOD; Key:'.'; Shift:'>'; Alt:'.'; CTRL:'.'),
(SDL:SDLK_LEFTBRACKET; Key:'['; Shift:'{'; Alt:'['; CTRL:'['),
(SDL:SDLK_RIGHTBRACKET;Key:']'; Shift:'}'; Alt:']'; CTRL:']'),
(SDL:SDLK_BACKSLASH; Key:'\'; Shift:'|'; Alt:'|'; CTRL:'|'),
(SDL:SDLK_BACKQUOTE; Key:'`'; Shift:'~'; Alt:'`'; CTRL:'`'),
(SDL:SDLK_QUOTE; Key:''''; Shift:'"'; Alt:''''; CTRL:''''),
(SDL:SDLK_EQUALS; Key:'='; Shift:'+'; Alt:'='; CTRL:'='),
(SDL:SDLK_SLASH; Key:'/'; Shift:'?'; Alt:'/'; CTRL:'/')
);
SDLDosColor : Array[0..15] of TSDL_Color = (
(R:000; G:000; B:000; a: 0), //00
(R:000; G:000; B:128; a: 0), //01
(R:000; G:128; B:000; a: 0), //02
(R:000; G:128; B:128; a: 0), //03
(R:170; G:000; B:000; a: 0), //04
(R:128; G:000; B:128; a: 0), //05
(R:128; G:128; B:000; a: 0), //06
(R:192; G:192; B:192; a: 0), //07
(R:128; G:128; B:128; a: 0), //08
(R:000; G:000; B:255; a: 0), //09
(R:000; G:255; B:000; a: 0), //10
(R:000; G:255; B:255; a: 0), //11
(R:255; G:000; B:000; a: 0), //12
(R:255; G:000; B:255; a: 0), //13
(R:255; G:255; B:000; a: 0), //14
(R:255; G:255; B:255; a: 0) //15
);
Function Int2Str (N: LongInt): String;
Var
T : String;
Begin
Str(N, T);
Int2Str := T;
End;
Function Str2Int (Str: String): LongInt;
Var
N : LongInt;
T : LongInt;
Begin
Val(Str, T, N);
Str2Int := T;
End;
Constructor TSDLConsole.Create (InitMode: Byte; Title,FontFile:String);
Var
i,x,y : Byte;
di : TSDL_DisplayMode;
text:string;
Begin
Inherited Create;
PauseDraw:=True;
if SDL_Init( SDL_INIT_VIDEO ) < 0 then Begin
Log('Error Initializing SDL');
HALT;
End;
Title := Title + #0;
//Init Font
SDLFontFile := Fontfile+#0;
text:=FontFile+#0;
//Fontimg:=SDL_CreateRGBSurface( 0,16*FontWidth,16*FOntheight, 32, 0, 0, 0, 100 );
If FontFile='' Then
Case InitMode Of
mode_80x25 : Text := '80x25.png'+#0;
mode_80x50 : Text := '80x50.png'+#0;
mode_132x50 : Text := '132x50.png'+#0;
End;
Try
FontImg := IMG_Load(PChar(@text[1]));
Except
Log('Could Not Load Font File.');
Halt;
End;
If FontImg=Nil Then Begin
Log('Could Not Load Font File.');
Halt;
End;
FontWidth := Fontimg^.w Div 16;
FontHeight := Fontimg^.h Div 16;
TileRect.x:=0;
Tilerect.y:=0;
Tilerect.w:=FontWidth;
Tilerect.h:=FontHeight;
SDL_SetColorKey(FontImg,1,0);
//FontImg := IMG_Load('Anikki_square_20x20.png');
For y:=0 to 15 Do
For x:=0 to 15 Do
Begin
FontChar[y*16+x].x:=x*FontWidth;
FontChar[y*16+x].y:=y*FontHeight;
FontChar[y*16+x].w:=FontWidth;
FontChar[y*16+x].h:=FontHeight;
End;
SoundOn := True;
ClickOn := True;
BellOn := True;
if SDL_Init(SDL_INIT_AUDIO ) < 0 Then Begin
SoundOn := False;
ClickOn := False;
BellOn := False;
Log('Sound System not Initialized.');
End Else
if Mix_OpenAudio( MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, MIX_DEFAULT_CHANNELS, 4096 ) < 0 then Begin
SoundOn := False;
ClickOn := False;
BellOn := False;
Log('Could not open Mixer.');
End Else Begin
sClick := Mix_LoadWAV( 'click.wav' );
if sClick = nil then Begin
ClickOn := False;
Log('Click Sound not Loaded.');
end Else Begin
Mix_VolumeChunk( sClick, MIX_MAX_VOLUME );
//ClickThread := SDL_CreateThread(@PlayClick,pchar('hello'),nil);
End;
sBell := Mix_LoadWAV( 'bell.wav' );
if sBell = nil then Begin
BellOn := False;
Log('Bell Sound not Loaded.');
End Else Mix_VolumeChunk( sBell, MIX_MAX_VOLUME );
End;
Mode := InitMode;
Case InitMode of
mode_80x25 : Begin
SetLength(Buffer,26);
//Log('length y: '+int2str(length(buffer)));
For i:=0 to 25 Do begin
SetLength(Buffer[i],81);
end;
//SDL_SetWindowSize(Window, 80*FontWidth,25*FontHeight);
WindowWidth:=80*FontWidth;
WindowHeight:=25*FontHeight;
BufferWidth:=80;
BufferHeight:=25;
End;
mode_80x50 : Begin
SetLength(Buffer,51);
For i:=0 to 50 Do SetLength(Buffer[i],82);
//SDL_SetWindowSize(Window, 80*FontWidth,25*FontHeight);
WindowWidth:=80*FontWidth;
WindowHeight:=50*FontHeight;
BufferWidth:=80;
BufferHeight:=50;
End;
mode_132x50 : Begin
SetLength(Buffer,51);
For i:=0 to 50 Do SetLength(Buffer[i],133);
//SDL_SetWindowSize(Window, 132*FontWidth,25*FontHeight);
WindowWidth:=132*FontWidth;
WindowHeight:=50*FontHeight;
BufferWidth:=132;
BufferHeight:=50;
End;
End;
window := SDL_CreateWindow(PChar(@Title[1]), SDLAppWindowX, SDLAppWindowY, WindowWidth, WindowHeight, SDL_WINDOW_SHOWN or SDL_WINDOW_RESIZABLE);
//renderer := SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED or SDL_RENDERER_PRESENTVSYNC);
//renderer := SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
log('Creating Window...');
if window = nil then halt;
{if SDL_RenderSetLogicalSize(Renderer, 640, 480) <> 0 then Begin
Log('Could not set proper resolution');
Halt;
End;}
SDL_SetWindowTitle(Window, PChar(@Title[1]));
Screen := SDL_GetWindowSurface(window);
// set scaling quality
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, 'best');
//SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, 'nearest');
//cc:=SDL_CreateRGBSurface(0,windowwidth,windowheight,32,0,0,0,100);
//SDL_FillRect(cc, nil,SDL_MapRGBA(cc^.format, 255, 0, 0,0));
ScreenRect.x:=0;
ScreenRect.y:=0;
ScreenRect.w:=WindowWidth;
ScreenRect.h:=WindowHeight;
ScreenBuf := SDL_CreateRGBSurface(0,WindowWidth,WindowHeight,32,0,0,0,0);
Screen := SDL_GetWindowSurface(window);
//Texture := SDL_CreateTextureFromSurface(Renderer, ScreenBuf);
CopySurface:=SDL_CreateRGBSurface( 0,WindowWidth,WindowHeight, 32, 0, 0, 0, 100 );
SDL_FillRect(CopySurface,nil,SDL_MapRGBA(CopySurface^.format, 0, 188, 212,50));
New(Cursor);
New(Tile);
Cursor := SDL_CreateRGBSurface(0,FontWidth,FontHeight,16,0,0,0,0);
Tile := SDL_CreateRGBSurface(0,FontWidth,FontHeight,16,0,0,0,0);
SDL_SetColorKey(Tile,1,0);
SDL_SetColorKey(Cursor,1,0);
SDL_UpperBlit(FontImg,@FontChar[Ord('_')],Cursor,nil);
//Cursor := TTF_RenderText_solid (Font, PChar(chr(177)), SDLDosColor[14]);
//SDL_FillRect(Cursor,nil,SDL_MapRGBA(cursor^.format, 200, 200, 200,100));
New (InputEvent);
SDL_GetDesktopDisplayMode(0, @di);
SDL_SetWindowPosition(Window,(di.w div 2)-(WindowWidth div 2),(di.h div 2)-(WindowHeight div 2));
InputSize := 0;
InputPos := 0;
TextAttr := 7;
Seth :='|';
isFullScreen := False;
CursorOn := True;
EnableCursor := True;
CopyOn:=0;
kpress:=false;
BufferChanged:=True;
ClrScr;
PauseDraw:=False;
//SDL_CreateThread( @thread_func, nil );
Log('Buffer Width: '+int2str(bufferwidth));
Log('Buffer Height: '+int2str(bufferheight));
Log('Font Width: '+int2str(fontwidth));
Log('Font Height: '+int2str(fontheight));
End;
Destructor TSDLConsole.Destroy;
Var
i : Byte;
Begin
Dispose (InputEvent);
SDL_FreeSurface(Cursor);
SDL_FreeSurface(Tile);
SDL_FreeSurface(ScreenBuf);
SDL_FreeSurface(Icon);
//SDL_FreeSurface(cc);
SDL_FreeSurface(CopySurface);
//SDL_DestroyRenderer(Renderer);
//SDL_DestroyTexture(Texture);
SDL_DestroyWindow ( Window );
If BellOn Then Mix_FreeChunk( sBell );
If ClickOn Then Mix_FreeChunk( sClick );
Mix_CloseAudio;
SDL_FreeSurface(FontImg);
SDL_QUIT;
Case Mode of
mode_80x25 : Begin
For i:=0 to 25 Do SetLength(Buffer[i],0);
SetLength(Buffer,0);
End;
mode_80x50 : Begin
For i:=0 to 51 Do SetLength(Buffer[i],0);
SetLength(Buffer,0);
End;
mode_132x50 : Begin
For i:=0 to 51 Do SetLength(Buffer[i],0);
SetLength(Buffer,0);
End;
End;
Inherited Destroy;
End;
Procedure TSDLConsole.PushInput (Ch: Char);
Begin
Inc (InputSize);
If InputSize > AppInputSize Then Begin
InputSize := 1;
InputPos := 0;
End;
InputBuffer[InputSize] := Ch;
If ClickOn then Mix_PlayChannel( -1, sClick, 0 );
End;
Procedure TSDLConsole.PushExt (Ch: Char);
Begin
PushInput(#0);
PushInput(Ch);
If ClickOn then Mix_PlayChannel( -1, sClick, 0 );
End;
Procedure TSDLConsole.PushStr (Str: String);
Begin
PushInput (Str[1]);
If Length(Str) > 1 Then PushInput (Str[2]);
End;
Procedure TSDLConsole.ProcessEvent;
Var
IsShift : Boolean = False;
IsCaps : Boolean = False;
IsAlt : Boolean = False;
IsCtrl : Boolean = False;
Found : Boolean;
Count : Integer;
Begin
IsShift := (InputEvent^.Key.KeySym._mod AND KMOD_SHIFT <> 0);
IsCaps := (InputEvent^.Key.KeySym._mod AND KMOD_CAPS <> 0);
IsAlt := (InputEvent^.Key.KeySym._mod AND KMOD_ALT <> 0);
IsCtrl := (InputEvent^.Key.KeySym._mod AND KMOD_CTRL <> 0);
Case InputEvent^.Type_ of
SDL_MOUSEMOTION : Begin
//If SDL_GetTicks() - timer < 10 Then exit;
mx:=InputEvent^.motion.x;
my:=InputEvent^.motion.y;
CopyRect.X:=mbxp;
COpyRect.Y:=mbyp;
Copyrect.w:=mx-mbxp;
Copyrect.h:=my-mbyp;
//Pixel2Cursor(CopyRect);
copyon:=InputEvent^.motion.state;
End;
SDL_MOUSEBUTTONDOWN : Begin
Case InputEvent^.button.button of
SDL_BUTTON_LEFT: mbButton:= mbLEFT;
SDL_BUTTON_MIDDLE: mbButton:= mbMIDDLE;
SDL_BUTTON_RIGHT: mbButton:= mbRIGHT;
End;
mbXp:=InputEvent^.motion.x;
mbYp:=InputEvent^.motion.y;
If Assigned(OnMouseKey) Then OnMouseKey(mbxp,mbyp,mbbutton,mbDown);
End;
SDL_MOUSEBUTTONUP : Begin
If CopyOn=1 Then CopyClipboard1;
If CopyOn=2 Then CopyClipboard2;
//log('Button: '+int2str(mbbutton));
If Assigned(OnMouseKey) Then OnMouseKey(mbxp,mbyp,mbbutton,mbUp);
mbButton:=0;
CopyOn:=0;
End;
{SDL_MOUSEWHEEL : Begin
If SDL_GetTicks() - Timer < 500 then exit;
if InputEvent^.wheel.y < 0 Then begin
PushExt(keyDOWN);
InputEvent^.wheel.y:=0;
end
else if InputEvent^.wheel.y > 0 then begin
PushExt(keyUP);
InputEvent^.wheel.y:=0;
end;
//sdl_delay(30);
Timer := SDL_GetTicks();
//log(int2str(timer));
End;
}
SDL_WINDOWEVENT : Begin
Case InputEvent^.Window.event of
SDL_WINDOWEVENT_RESIZED : Begin
ResizeWindow(InputEvent^.window.data1,InputEvent^.window.data2);
log('Resized...');
//Draw;
End;
End;
end;
//SDL_KEYUP : kpress:=false;
SDL_KEYDOWN : Begin
//if kpress then exit;
//If SDL_GetTicks() - timer < 30 Then exit;
If (InputEvent^.Key.KeySym.Sym = SDLK_RETURN) And (IsAlt) then begin
If isFullScreen Then Begin
SDL_SetWindowFullscreen(Window,0);
isFullScreen := False;
End Else Begin
SDL_SetWindowFullscreen(Window,SDL_WINDOW_FULLSCREEN_DESKTOP);
isFullScreen := True;
End;
BufferChanged:=True;
exit;
end else
If (InputEvent^.Key.KeySym.Sym = SDLK_C) And (IsAlt) And isCtrl then begin
Halt; //!!!!
End else Begin
Case InputEvent^.Key.KeySym.Sym of
SDLK_A..
SDLK_Z : Begin
If IsShift or IsCaps Then Dec (InputEvent^.Key.KeySym.Sym, 32);
PushInput (Chr(InputEvent^.Key.KeySym.Sym));
End;
SDLK_SPACE : PushStr(#32);
SDLK_DELETE : PushExt(keyDELETE);
SDLK_UP : PushExt(keyUP);
SDLK_DOWN : PushExt(keyDOWN);
SDLK_RIGHT : PushExt(keyRIGHT);
SDLK_LEFT : PushExt(keyLEFT);
SDLK_INSERT : PushExt(keyINSERT);
SDLK_HOME : PushExt(keyHome);
SDLK_END : PushExt(keyEnd);
SDLK_PAGEUP : PushExt(keyPGUP);
SDLK_PAGEDOWN : PushExt(keyPGDN);
SDLK_KP_ENTER,
SDLK_RETURN : PushStr(#13);
SDLK_ESCAPE : PushStr(#27);
SDLK_KP_BACKSPACE,
SDLK_BACKSPACE : Pushstr(KeyBackSpace);
SDLK_TAB : PushExt(KeyTab);
SDLK_F1 : PushExt(KeyF1);
SDLK_F2 : PushExt(KeyF2);
SDLK_F3 : PushExt(KeyF3);
SDLK_F4 : PushExt(KeyF4);
SDLK_F5 : PushExt(KeyF5);
SDLK_F6 : PushExt(KeyF6);
SDLK_F7 : PushExt(KeyF7);
SDLK_F8 : PushExt(KeyF8);
SDLK_F9 : PushExt(KeyF9);
SDLK_F10 : PushExt(KeyF10);
SDLK_F11 : PushExt(KeyF11);
SDLK_F12 : PushExt(KeyF12);
//SDLK_NUMLOCKCLEAR..SDL_SCANCODE_APPLICATION : //ignore mod keys;
Else
Found := False;
For Count := 1 to SDLKeyMapSize Do
If InputEvent^.Key.KeySym.Sym = SDLKeyMapUS[Count].SDL Then Begin
If IsShift Then
PushStr(SDLKeyMapUS[Count].Shift)
Else
If IsAlt Then
PushStr(SDLKeyMapUS[Count].Alt)
Else
If IsCTRL Then
PushStr(SDLKeyMapUS[Count].CTRL)
Else
PushStr(SDLKeyMapUS[Count].Key);
Found := True;
Break;
End;
//If Not Found Then PushInput(Chr(InputEvent^.Key.KeySym.Sym));
End;
End;
End;
SDL_QUITEV : Halt;
End;
End;
Function TSDLConsole.KeyPressed : Boolean;
Begin
If SDL_PollEvent(InputEvent) > 0 Then
ProcessEvent;
Result := InputPos <> InputSize;
End;
{Function TSDLConsole.ReadKey : Char;
Begin
If InputPos = InputSize Then Begin
Repeat
//SDL_WaitEventTimeout(InputEvent,10);
SDL_WaitEvent(InputEvent);
ProcessEvent;
Until (InputSize <> InputPos);
End;
Inc (InputPos);
Result := InputBuffer[InputPos];
If InputPos = InputSize Then Begin
InputPos := 0;
InputSize := 0;
End;
End;}
Procedure TSDLConsole.ProcessEvents;
Begin
If SDL_PollEvent(InputEvent)<>0 then ProcessEvent;
End;
Function TSDLConsole.ReadKey : Char;
Begin
BufferChanged:=true;
If InputPos = InputSize Then Begin
kpress:=true;
Repeat
SDL_WaitEvent(InputEvent);
ProcessEvent;
Until (InputSize <> InputPos);
kpress:=false;
End;
Inc (InputPos);
Result := InputBuffer[InputPos];
If InputPos = InputSize Then Begin
InputPos := 0;
InputSize := 0;
End;
End;
Procedure TSDLConsole.Delay (MS: LongInt);
Begin
SDL_DELAY(MS);
End;
Procedure TSDLConsole.ShowBuffer;
Begin
//SDL_RenderPresent( Renderer );
SDL_UpdateWindowSurface(window);
End;
Procedure TSDLConsole.SetTextAttr(Attr:Byte);
Begin
TextAttr:=Attr;
End;
Procedure TSDLConsole.WriteChar(Ch:Char);
Begin
Case Ch of
#08 : If WhereX > 1 Then
Dec(WhereX);
#10 : Begin
If WhereY < BufferHeight Then
Inc (WhereY) Else Begin
ScrollBufferUp;
WhereY:=BufferHeight;
End;
End;
#13 : WhereX := 1;
Else
try
Buffer[WhereY][WhereX].Ch:=Ch;
Buffer[WhereY][WhereX].Attr:=TextAttr;
except
end;
WhereX := WhereX + 1;
If WhereX > BufferWidth Then Begin
WhereX:=1;
WhereY:=WhereY+1;
If WhereY>BufferHeight Then Begin
ScrollBufferUp;
WhereY:=BufferHeight;
End;
End;
End;
BufferChanged:=True;
End;
Procedure TSDLConsole.GotoX(x:Byte);
Begin
GotoXY(x,WhereY);
End;
Procedure TSDLConsole.GotoY(Y:Byte);
Begin
GotoXY(WhereX,y);
End;
Procedure TSDLConsole.GotoXY(x,y:Byte);
Begin
If (Y < 1) Then Y := 1 Else
If (Y > BufferHeight) Then Y := BufferHeight;
If (X < 1) Then X := 1 Else
If (X > BufferWidth) Then X := BufferWidth;
WhereX := X;
WhereY := Y;
End;
Procedure TSDLConsole.WriteXY(X,Y,A:Byte; Str:String);
Var
oldat : Byte;
Begin
GotoXY(x,y);
oldat:=TextAttr;
TextAttr:=A;
WriteStr(Str);
TextAttr:=oldat;
End;
Procedure TSDLConsole.ScrollBufferUp;
Var
i:byte;
Begin
For i:=2 to BufferHeight Do Move(Buffer[i][0],Buffer[i-1][0],(BufferWidth+1) * Sizeof(TScreenChar));
//FillByte(Buffer[BufferHeight][0],0,(BufferWidth+1) * Sizeof(TScreenChar));
for i:=1 to bufferwidth do begin
buffer[bufferheight][i].ch:=#0;
buffer[bufferheight][i].Attr:=7;
end;
End;
Procedure TSDLConsole.WriteStr(Str:String);
var i:byte;
begin
for i:=1 to length(str) do writechar(str[i]);
end;
Function TSDLConsole.GetSDLFGColor:Byte;
Begin
Result := TextAttr Mod 16;
End;
Function TSDLConsole.GetSDLBGColor:Byte;
Begin
Result := TextAttr Div 16;
End;
Procedure TSDLConsole.ClrScr;
Var
x,y:byte;
Begin
//SDL_SetRenderDrawColor(renderer, SDLDosColor[GetSDLBGColor].r, SDLDosColor[GetSDLBGColor].r, SDLDosColor[GetSDLBGColor].r, 255);
//SDL_RenderClear(Renderer);
SDL_FillRect(screen, @ScreenRect, 0);
SDL_FillRect(screenbuf, @ScreenRect, 0);
//SDL_UpdateWindowSurface(window);
for y:=1 to BufferHeight Do
For x:=1 to BufferWidth Do Begin
Buffer[y][x].Ch:=#0;
Buffer[y][x].Attr:=TextAttr;
End;
WhereX:=1;
WhereY:=1;
//Draw;
End;
procedure TSDLConsole.fillbuffer;
var x,y:byte;
begin
for y:=1 to bufferheight do
for x:=1 to bufferwidth do begin
buffer[y][x].ch:='0';
buffer[y][x].attr:=14+3*16;
end;
end;
Procedure TSDLConsole.UpdateScreenBuffer;
Var
Rect : TSDL_Rect = (X:0; Y:0; W:0; H:0);
//Surface1 : PSDL_Surface;
//Text : String;
x,y:byte;
Begin
for y:=1 to bufferheight do begin
for x:=1 to bufferwidth do begin
Rect.W:=FontWidth;
Rect.H:=FontHeight;
Rect.X:=(X-1)*FontWidth;
Rect.Y:=(Y-1)*FontHeight;
SDL_FillRect(tile,@tilerect,0);
SDL_BlitSurfaceScaled(FontImg,@FontChar[Ord(buffer[y][x].ch)],Tile,@tilerect);
//SDL_BlitSurface(FontImg,@FontChar[Ord(buffer[y][x].ch)],Tile,@tilerect);
SDL_SetSurfaceColorMod(Tile,SDLDosColor[buffer[y][x].Attr mod 16].r, SDLDosColor[buffer[y][x].Attr mod 16].g, SDLDosColor[buffer[y][x].Attr mod 16].b);
SDL_FillRect(screenbuf,@rect,SDL_MapRGB(screenbuf^.format, SDLDosColor[buffer[y][x].Attr div 16].r, SDLDosColor[buffer[y][x].Attr div 16].g, SDLDosColor[buffer[y][x].Attr div 16].b));
SDL_UpperBlit(Tile,@tilerect,screenbuf,@rect);
end;
end;
End;
{Procedure TSDLConsole.MoveBuffer2Screen;
Begin
UpdateScreenBuffer;
SDL_BlitSurface(screenbuf,@screenrect,screen,@screenrect);
//SDL_UpdateWindowSurface(window);
End;}
Procedure TSDLConsole.Write(Str:String);
begin
WriteStr(str);
End;
Procedure TSDLConsole.WriteLn(Str:String);
Begin
WriteStr(Str+crlf);
End;
Procedure TSDLConsole.Log(Str:string);
Begin
system.writeln(str);
End;
Function TSDLConsole.GetAttrAt(AX, AY: Byte): Byte;
Begin
If (Ax<=BufferWidth) and (ay<=BufferHeight) Then
Result:=Buffer[Ay][Ax].Attr
Else Result:=7;
End;
Function TSDLConsole.GetCharAt(AX, AY: Byte): Char;
Begin
If (Ax<=BufferWidth) and (ay<=BufferHeight) Then
Result:=Buffer[Ay][Ax].Ch
Else Result:=' ';
End;
Procedure TSDLConsole.SetAttrAt(AAttr, AX, AY: Byte);
Begin
If (Ax<=BufferWidth) and (ay<=BufferHeight) Then Buffer[Ay][Ax].Attr:=AAttr;
End;