diff options
Diffstat (limited to 'src/classes/TextGL.pas')
| -rw-r--r-- | src/classes/TextGL.pas | 462 |
1 files changed, 0 insertions, 462 deletions
diff --git a/src/classes/TextGL.pas b/src/classes/TextGL.pas deleted file mode 100644 index f7b3ac95..00000000 --- a/src/classes/TextGL.pas +++ /dev/null @@ -1,462 +0,0 @@ -unit TextGL; - -interface - -{$IFDEF FPC} - {$MODE Delphi} -{$ENDIF} - -{$I switches.inc} - -uses - gl, - SDL, - UTexture, - Classes, -// SDL_ttf, - ULog; - -procedure BuildFont; // build our bitmap font -procedure KillFont; // delete the font -function glTextWidth(text: PChar): real; // returns text width -procedure glPrintLetter(letter: char); -procedure glPrint(text: pchar); // custom GL "Print" routine -procedure SetFontPos(X, Y: real); // sets X and Y -procedure SetFontZ(Z: real); // sets Z -procedure SetFontSize(Size: real); -procedure SetFontStyle(Style: integer); // sets active font style (normal, bold, etc) -procedure SetFontItalic(Enable: boolean); // sets italic type letter (works for all fonts) -procedure SetFontAspectW(Aspect: real); -procedure SetFontReflection(Enable:boolean;Spacing: real); // enables/disables text reflection -procedure SetFontBlend(Enable: boolean); // enables/disables blending - -//function NextPowerOfTwo(Value: integer): integer; -// Checks if the ttf exists, if yes then a SDL_ttf is returned -//function LoadFont(FileName: PAnsiChar; PointSize: integer):PTTF_Font; -// Does the renderstuff, color is in $ffeecc style -//function RenderText(font: PTTF_Font; Text:PAnsiChar; Color: Cardinal):PSDL_Surface; - -type - TTextGL = record - X: real; - Y: real; - Z: real; - Text: string; - Size: real; - ColR: real; - ColG: real; - ColB: real; - end; - - PFont = ^TFont; - TFont = record - Tex: TTexture; - Width: array[0..255] of byte; - AspectW: real; - Centered: boolean; - Outline: real; - Italic: boolean; - Reflection: boolean; - ReflectionSpacing: real; - Blend: boolean; - end; - - -var - Fonts: array of TFont; - ActFont: integer; - - -implementation - -uses - UMain, - UCommon, - SysUtils, - UGraphic; - -var - // Colours for the reflection - TempColor: array[0..3] of GLfloat; - -procedure LoadBitmapFontInfo(aID : integer; const aType, aResourceName: string); -var - stream: TStream; -begin - stream := GetResourceStream(aResourceName, aType); - if (not assigned(stream)) then - begin - Log.LogError('Unknown font['+ inttostr(aID) +': '+aType+']', 'loadfont'); - Exit; - end; - try - stream.Read(Fonts[ aID ].Width, 256); - except - Log.LogError('Error while reading font['+ inttostr(aID) +': '+aType+']', 'loadfont'); - end; - stream.Free; -end; - -// Builds bitmap fonts -procedure BuildFont; -var - Count: integer; -begin - ActFont := 0; - - SetLength(Fonts, 5); - Fonts[0].Tex := Texture.LoadTexture(true, 'Font', TEXTURE_TYPE_TRANSPARENT, 0); - Fonts[0].Tex.H := 30; - Fonts[0].AspectW := 0.9; - Fonts[0].Outline := 0; - - Fonts[1].Tex := Texture.LoadTexture(true, 'FontB', TEXTURE_TYPE_TRANSPARENT, 0); - Fonts[1].Tex.H := 30; - Fonts[1].AspectW := 1; - Fonts[1].Outline := 0; - - Fonts[2].Tex := Texture.LoadTexture(true, 'FontO', TEXTURE_TYPE_TRANSPARENT, 0); - Fonts[2].Tex.H := 30; - Fonts[2].AspectW := 0.95; - Fonts[2].Outline := 5; - - Fonts[3].Tex := Texture.LoadTexture(true, 'FontO2', TEXTURE_TYPE_TRANSPARENT, 0); - Fonts[3].Tex.H := 30; - Fonts[3].AspectW := 0.95; - Fonts[3].Outline := 4; - -{ Fonts[4].Tex := Texture.LoadTexture('FontO', TEXTURE_TYPE_TRANSPARENT, 0); // for score screen - Fonts[4].Tex.H := 30; - Fonts[4].AspectW := 0.95; - Fonts[4].Done := -1; - Fonts[4].Outline := 5;} - - // load font info - LoadBitmapFontInfo( 0, 'FNT', 'Font'); - LoadBitmapFontInfo( 1, 'FNT', 'FontB'); - LoadBitmapFontInfo( 2, 'FNT', 'FontO'); - LoadBitmapFontInfo( 3, 'FNT', 'FontO2'); - - for Count := 0 to 255 do - Fonts[1].Width[Count] := Fonts[1].Width[Count] div 2; - - for Count := 0 to 255 do - Fonts[2].Width[Count] := Fonts[2].Width[Count] div 2 + 2; - - for Count := 0 to 255 do - Fonts[3].Width[Count] := Fonts[3].Width[Count] + 1; - -{ for Count := 0 to 255 do - Fonts[4].Width[Count] := Fonts[4].Width[Count] div 2 + 2;} - - // enable blending by default - for Count := 0 to High(Fonts) do - Fonts[Count].Blend := true; -end; - -// Deletes the font -procedure KillFont; -begin - // delete all characters - //glDeleteLists(..., 256); -end; - -function glTextWidth(text: pchar): real; -var - Letter: char; - i: integer; -begin - Result := 0; - for i := 0 to Length(text) -1 do - begin - Letter := Text[i]; - Result := Result + Fonts[ActFont].Width[Ord(Letter)] * Fonts[ActFont].Tex.H / 30 * Fonts[ActFont].AspectW; - end; -end; - -procedure glPrintLetter(Letter: char); -var - TexX, TexY: real; - TexR, TexB: real; - TexHeight: real; - FWidth: real; - PL, PT: real; - PR, PB: real; - XItal: real; // X shift for italic type letter - ReflectionSpacing: real; // Distance of the reflection - Font: PFont; - Tex: PTexture; -begin - Font := @Fonts[ActFont]; - Tex := @Font.Tex; - - FWidth := Font.Width[Ord(Letter)]; - - Tex.W := FWidth * (Tex.H/30) * Font.AspectW; - - // set texture positions - TexX := (ord(Letter) mod 16) * 1/16 + 1/32 - FWidth/1024 - Font.Outline/1024; - TexY := (ord(Letter) div 16) * 1/16 + 2/1024; - TexR := (ord(Letter) mod 16) * 1/16 + 1/32 + FWidth/1024 + Font.Outline/1024; - TexB := (1 + ord(Letter) div 16) * 1/16 - 2/1024; - - TexHeight := TexB - TexY; - - // set vector positions - PL := Tex.X - Font.Outline * (Tex.H/30) * Font.AspectW /2; - PT := Tex.Y; - PR := PL + Tex.W + Font.Outline * (Tex.H/30) * Font.AspectW; - PB := PT + Tex.H; - - if (not Font.Italic) then - XItal := 0 - else - XItal := 12; - - if (Font.Blend) then - begin - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - end; - - glEnable(GL_TEXTURE_2D); - glBindTexture(GL_TEXTURE_2D, Tex.TexNum); - - glBegin(GL_QUADS); - glTexCoord2f(TexX, TexY); glVertex2f(PL+XItal, PT); - glTexCoord2f(TexX, TexB); glVertex2f(PL, PB); - glTexCoord2f(TexR, TexB); glVertex2f(PR, PB); - glTexCoord2f(TexR, TexY); glVertex2f(PR+XItal, PT); - glEnd; - - // <mog> Reflection - // Yes it would make sense to put this in an extra procedure, - // but this works, doesn't take much lines, and is almost lightweight - if Font.Reflection then - begin - ReflectionSpacing := Font.ReflectionSpacing + Tex.H/2; - - glDepthRange(0, 10); - glDepthFunc(GL_LEQUAL); - glEnable(GL_DEPTH_TEST); - - glBegin(GL_QUADS); - glColor4f(TempColor[0], TempColor[1], TempColor[2], 0); - glTexCoord2f(TexX, TexY + TexHeight/2); - glVertex3f(PL, PB + ReflectionSpacing - Tex.H/2, Tex.z); - - glColor4f(TempColor[0], TempColor[1], TempColor[2], Tex.Alpha-0.3); - glTexCoord2f(TexX, TexB ); - glVertex3f(PL + XItal, PT + ReflectionSpacing, Tex.z); - - glTexCoord2f(TexR, TexB ); - glVertex3f(PR + XItal, PT + ReflectionSpacing, Tex.z); - - glColor4f(TempColor[0], TempColor[1], TempColor[2], 0); - glTexCoord2f(TexR, TexY + TexHeight/2); - glVertex3f(PR, PB + ReflectionSpacing - Tex.H/2, Tex.z); - glEnd; - - glDisable(GL_DEPTH_TEST); - end; // reflection - - glDisable(GL_TEXTURE_2D); - if (Font.Blend) then - glDisable(GL_BLEND); - - Tex.X := Tex.X + Tex.W; - - //write the colour back - glColor4fv(@TempColor); -end; - -// Custom GL "Print" Routine -procedure glPrint(Text: PChar); -var - Pos: integer; -begin - // if there is no text do nothing - if ((Text = nil) or (Text = '')) then - Exit; - - //Save the actual color and alpha (for reflection) - glGetFloatv(GL_CURRENT_COLOR, @TempColor); - - for Pos := 0 to Length(Text) - 1 do - begin - glPrintLetter(Text[Pos]); - end; -end; - -procedure SetFontPos(X, Y: real); -begin - Fonts[ActFont].Tex.X := X; - Fonts[ActFont].Tex.Y := Y; -end; - -procedure SetFontZ(Z: real); -begin - Fonts[ActFont].Tex.Z := Z; -end; - -procedure SetFontSize(Size: real); -begin - Fonts[ActFont].Tex.H := 30 * (Size/10); -end; - -procedure SetFontStyle(Style: integer); -begin - ActFont := Style; -end; - -procedure SetFontItalic(Enable: boolean); -begin - Fonts[ActFont].Italic := Enable; -end; - -procedure SetFontAspectW(Aspect: real); -begin - Fonts[ActFont].AspectW := Aspect; -end; - -procedure SetFontReflection(Enable: boolean; Spacing: real); -begin - Fonts[ActFont].Reflection := Enable; - Fonts[ActFont].ReflectionSpacing := Spacing; -end; - -procedure SetFontBlend(Enable: boolean); -begin - Fonts[ActFont].Blend := Enable; -end; - - - - -(* -<mog> I uncommented this, because it was some kind of after hour hack together with blindy -it's actually just a prove of concept, as it's having some flaws -- instead nice and clean ttf code should be placed here :) - -{$IFDEF FPC} - {$ASMMODE Intel} -{$ENDIF} - -function NextPowerOfTwo(Value: integer): integer; -begin - Result:= 1; -{$IF Defined(CPUX86_64)} - asm - mov rcx, -1 - bsr rcx, Value - inc rcx - shl Result, cl - end; -{$ELSEIF Defined(CPU386) or Defined(CPUI386)} - asm - mov ecx, -1 - bsr ecx, Value - inc ecx - shl Result, cl - end; -{$ELSE} - while (Result <= Value) do - Result := 2 * Result; -{$IFEND} -end; - -function LoadFont(FileName: PAnsiChar; PointSize: integer):PTTF_Font; -begin - if (FileExists(FileName)) then - begin - Result := TTF_OpenFont( FileName, PointSize ); - end - else - begin - Log.LogStatus('ERROR Could not find font in ' + FileName , ''); - ShowMessage( 'ERROR Could not find font in ' + FileName ); - Result := nil; - end; -end; - -function RenderText(font: PTTF_Font; Text:PAnsiChar; Color: Cardinal): PSDL_Surface; -var - clr : TSDL_color; -begin - clr.r := ((Color and $ff0000) shr 16 ) div 255; - clr.g := ((Color and $ff00 ) shr 8 ) div 255; - clr.b := ( Color and $ff ) div 255 ; - - result := TTF_RenderText_Blended( font, text, cLr); -end; - -procedure printrandomtext(); -var - stext,intermediary : PSDL_surface; - clrFg, clrBG : TSDL_color; - texture : Gluint; - font : PTTF_Font; - w,h : integer; -begin - - font := LoadFont('fonts\comicbd.ttf', 42); - - clrFg.r := 255; - clrFg.g := 255; - clrFg.b := 255; - clrFg.unused := 255; - - clrBg.r := 255; - clrbg.g := 0; - clrbg.b := 255; - clrbg.unused := 0; - - sText := RenderText(font, 'katzeeeeeee', $fe198e); - //sText := TTF_RenderText_Blended( font, 'huuuuuuuuuund', clrFG); - - // Convert the rendered text to a known format - w := nextpoweroftwo(sText.w); - h := nextpoweroftwo(sText.h); - - intermediary := SDL_CreateRGBSurface(0, w, h, 32, - $000000ff, $0000ff00, $00ff0000, $ff000000); - - SDL_SetAlpha(intermediary, 0, 255); - SDL_SetAlpha(sText, 0, 255); - SDL_BlitSurface(sText, nil, intermediary, nil); - - glGenTextures(1, @texture); - - glBindTexture(GL_TEXTURE_2D, texture); - - glTexImage2D(GL_TEXTURE_2D, 0, 4, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, intermediary.pixels); - - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - - glEnable(GL_TEXTURE_2D); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - glEnable(GL_BLEND); - glBindTexture(GL_TEXTURE_2D, texture); - glColor4f(1, 0, 1, 1); - - glbegin(gl_quads); - glTexCoord2f(0, 0); glVertex2f(200 , 300 ); - glTexCoord2f(0, sText.h/h); glVertex2f(200 , 300 + sText.h); - glTexCoord2f(sText.w/w, sText.h/h); glVertex2f(200 + sText.w, 300 + sText.h); - glTexCoord2f(sText.w/w, 0); glVertex2f(200 + sText.w, 300 ); - glEnd; - glfinish(); - glDisable(GL_BLEND); - gldisable(gl_texture_2d); - - SDL_FreeSurface(sText); - SDL_FreeSurface(intermediary); - glDeleteTextures(1, @texture); - TTF_CloseFont(font); - -end; -*) - - -end. |