(* * Hedgewars, a free turn based strategy game * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com> * * 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; version 2 of the License * * 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 St, Fifth Floor, Boston, MA 02110-1301 USA *){$INCLUDE "options.inc"}unit uRenderUtils;interfaceuses SDLh, uTypes;procedure flipSurface(Surface: PSDL_Surface; Vertical: Boolean);procedure copyRotatedSurface(src, dest: PSDL_Surface); // this is necessary since width/height are read only in SDLprocedure copyToXY(src, dest: PSDL_Surface; destX, destY: LongInt); inline;procedure copyToXYFromRect(src, dest: PSDL_Surface; srcX, srcY, srcW, srcH, destX, destY: LongInt);procedure DrawSprite2Surf(sprite: TSprite; dest: PSDL_Surface; x,y: LongInt); inline;procedure DrawSpriteFrame2Surf(sprite: TSprite; dest: PSDL_Surface; x,y: LongInt; frame: LongInt);procedure DrawLine2Surf(dest: PSDL_Surface; x0,y0,x1,y1:LongInt; r,g,b: byte);procedure DrawRoundRect(rect: PSDL_Rect; BorderColor, FillColor: Longword; Surface: PSDL_Surface; Clear: boolean);function RenderStringTex(s: ansistring; Color: Longword; font: THWFont): PTexture;function RenderStringTexLim(s: ansistring; Color: Longword; font: THWFont; maxLength: LongWord): PTexture;function RenderSpeechBubbleTex(s: ansistring; SpeechType: Longword; font: THWFont): PTexture;implementationuses uUtils, uVariables, uConsts, uTextures, SysUtils, uDebug;procedure DrawRoundRect(rect: PSDL_Rect; BorderColor, FillColor: Longword; Surface: PSDL_Surface; Clear: boolean);var r: TSDL_Rect;begin r:= rect^; if Clear then SDL_FillRect(Surface, @r, 0); BorderColor:= SDL_MapRGB(Surface^.format, BorderColor shr 16, BorderColor shr 8, BorderColor and $FF); FillColor:= SDL_MapRGB(Surface^.format, FillColor shr 16, FillColor shr 8, FillColor and $FF); r.y:= rect^.y + 1; r.h:= rect^.h - 2; SDL_FillRect(Surface, @r, BorderColor); r.x:= rect^.x + 1; r.w:= rect^.w - 2; r.y:= rect^.y; r.h:= rect^.h; SDL_FillRect(Surface, @r, BorderColor); r.x:= rect^.x + 2; r.y:= rect^.y + 1; r.w:= rect^.w - 4; r.h:= rect^.h - 2; SDL_FillRect(Surface, @r, FillColor); r.x:= rect^.x + 1; r.y:= rect^.y + 2; r.w:= rect^.w - 2; r.h:= rect^.h - 4; SDL_FillRect(Surface, @r, FillColor);end;(*function WriteInRoundRect(Surface: PSDL_Surface; X, Y: LongInt; Color: LongWord; Font: THWFont; s: ansistring): TSDL_Rect;begin WriteInRoundRect:= WriteInRoundRect(Surface, X, Y, Color, Font, s, 0);end;*)function WriteInRoundRect(Surface: PSDL_Surface; X, Y: LongInt; Color: LongWord; Font: THWFont; s: ansistring; maxLength: LongWord): TSDL_Rect;var w, h: Longword; tmpsurf: PSDL_Surface; clr: TSDL_Color; finalRect, textRect: TSDL_Rect;begin TTF_SizeUTF8(Fontz[Font].Handle, PChar(s), @w, @h); if (maxLength > 0) and (w > maxLength) then w := maxLength; finalRect.x:= X; finalRect.y:= Y; finalRect.w:= w + cFontBorder * 2 + 4; finalRect.h:= h + cFontBorder * 2; textRect.x:= X; textRect.y:= Y; textRect.w:= w; textRect.h:= h; DrawRoundRect(@finalRect, cWhiteColor, cNearBlackColor, Surface, true); clr.r:= (Color shr 16) and $FF; clr.g:= (Color shr 8) and $FF; clr.b:= Color and $FF; tmpsurf:= TTF_RenderUTF8_Blended(Fontz[Font].Handle, PChar(s), clr); finalRect.x:= X + cFontBorder + 2; finalRect.y:= Y + cFontBorder; SDLTry(tmpsurf <> nil, 'TTF_RenderUTF8_Blended', true); SDL_UpperBlit(tmpsurf, @textRect, Surface, @finalRect); SDL_FreeSurface(tmpsurf); finalRect.x:= X; finalRect.y:= Y; finalRect.w:= w + cFontBorder * 2 + 4; finalRect.h:= h + cFontBorder * 2; WriteInRoundRect:= finalRect;end;procedure flipSurface(Surface: PSDL_Surface; Vertical: Boolean);var y, x, i, j: LongInt; tmpPixel: Longword; pixels: PLongWordArray;begin TryDo(Surface^.format^.BytesPerPixel = 4, 'flipSurface failed, expecting 32 bit surface', true); SDL_LockSurface(Surface); pixels:= Surface^.pixels; if Vertical then for y := 0 to (Surface^.h div 2) - 1 do for x := 0 to Surface^.w - 1 do begin i:= y * Surface^.w + x; j:= (Surface^.h - y - 1) * Surface^.w + x; tmpPixel:= pixels^[i]; pixels^[i]:= pixels^[j]; pixels^[j]:= tmpPixel; end else for x := 0 to (Surface^.w div 2) - 1 do for y := 0 to Surface^.h -1 do begin i:= y*Surface^.w + x; j:= y*Surface^.w + (Surface^.w - x - 1); tmpPixel:= pixels^[i]; pixels^[i]:= pixels^[j]; pixels^[j]:= tmpPixel; end; SDL_UnlockSurface(Surface);end;procedure copyToXY(src, dest: PSDL_Surface; destX, destY: LongInt); inline;begin copyToXYFromRect(src, dest, 0, 0, src^.w, src^.h, destX, destY);end;procedure copyToXYFromRect(src, dest: PSDL_Surface; srcX, srcY, srcW, srcH, destX, destY: LongInt);var i, j, maxDest, maxSrc, iX, iY: LongInt; srcPixels, destPixels: PLongWordArray; r0, g0, b0, a0, r1, g1, b1, a1: Byte;begin maxDest:= (dest^.pitch div 4) * dest^.h; maxSrc:= (src^.pitch div 4) * src^.h; SDL_LockSurface(src); SDL_LockSurface(dest); srcPixels:= src^.pixels; destPixels:= dest^.pixels; for iX:= 0 to srcW - 1 do for iY:= 0 to srcH - 1 do begin i:= (destY + iY) * (dest^.pitch div 4) + (destX + iX); j:= (srcY + iY) * (src^.pitch div 4) + (srcX + iX); if (i < maxDest) and (j < maxSrc) and (srcPixels^[j] and AMask <> 0) then begin SDL_GetRGBA(destPixels^[i], dest^.format, @r0, @g0, @b0, @a0); SDL_GetRGBA(srcPixels^[j], src^.format, @r1, @g1, @b1, @a1); r0:= (r0 * (255 - LongInt(a1)) + r1 * LongInt(a1)) div 255; g0:= (g0 * (255 - LongInt(a1)) + g1 * LongInt(a1)) div 255; b0:= (b0 * (255 - LongInt(a1)) + b1 * LongInt(a1)) div 255; a0:= a0 + ((255 - LongInt(a0)) * a1 div 255); destPixels^[i]:= SDL_MapRGBA(dest^.format, r0, g0, b0, a0); end; end; SDL_UnlockSurface(src); SDL_UnlockSurface(dest);end;procedure DrawSprite2Surf(sprite: TSprite; dest: PSDL_Surface; x,y: LongInt); inline;begin DrawSpriteFrame2Surf(sprite, dest, x, y, 0);end;procedure DrawSpriteFrame2Surf(sprite: TSprite; dest: PSDL_Surface; x,y,frame: LongInt);var numFramesFirstCol, row, col: LongInt;begin numFramesFirstCol:= SpritesData[sprite].imageHeight div SpritesData[sprite].Height; row:= Frame mod numFramesFirstCol; col:= Frame div numFramesFirstCol; copyToXYFromRect(SpritesData[sprite].Surface, dest, col*SpritesData[sprite].Width, row*SpritesData[sprite].Height, SpritesData[sprite].Width, spritesData[sprite].Height, x,y);end;procedure DrawLine2Surf(dest: PSDL_Surface; x0, y0,x1,y1: LongInt; r,g,b: byte);var dx,dy,err,e2,sx,sy: LongInt; yMax: LongInt; destPixels: PLongwordArray;begin //max:= (dest^.pitch div 4) * dest^.h; yMax:= dest^.pitch div 4; SDL_LockSurface(dest); destPixels:= dest^.pixels; dx:= abs(x1-x0); dy:= abs(y1-y0); if x0 < x1 then sx:= 1 else sx:= -1; if y0 < y1 then sy:= 1 else sy:= -1; err:= dx-dy; while(true) do begin destPixels^[(y0 * yMax) + x0]:= SDL_MapRGB(dest^.format, r,g,b); //But will it blend? no if (x0 = x1) and (y0 = y1) then break; e2:= 2*err; if e2 > -dy then begin err:= err - dy; x0 := x0 + sx; end; if e2 < dx then begin err:= err + dx; y0:=y0+sy end; end; SDL_UnlockSurface(dest);end;procedure copyRotatedSurface(src, dest: PSDL_Surface); // this is necessary since width/height are read only in SDL, apparentlyvar y, x, i, j: LongInt; srcPixels, destPixels: PLongWordArray;begin TryDo(src^.format^.BytesPerPixel = 4, 'rotateSurface failed, expecting 32 bit surface', true); TryDo(dest^.format^.BytesPerPixel = 4, 'rotateSurface failed, expecting 32 bit surface', true); SDL_LockSurface(src); SDL_LockSurface(dest); srcPixels:= src^.pixels; destPixels:= dest^.pixels; j:= 0; for x := 0 to src^.w - 1 do for y := 0 to src^.h - 1 do begin i:= (src^.h - 1 - y) * (src^.pitch div 4) + x; destPixels^[j]:= srcPixels^[i]; inc(j) end; SDL_UnlockSurface(src); SDL_UnlockSurface(dest);end;function RenderStringTex(s: ansistring; Color: Longword; font: THWFont): PTexture;begin RenderStringTex:= RenderStringTexLim(s, Color, font, 0);end;function RenderStringTexLim(s: ansistring; Color: Longword; font: THWFont; maxLength: LongWord): PTexture;var w, h: Longword; finalSurface: PSDL_Surface;begin if cOnlyStats then begin RenderStringTexLim:= nil; end else begin if length(s) = 0 then s:= _S' '; font:= CheckCJKFont(s, font); w:= 0; h:= 0; // avoid compiler hints TTF_SizeUTF8(Fontz[font].Handle, PChar(s), @w, @h); if (maxLength > 0) and (w > maxLength) then w := maxLength; finalSurface:= SDL_CreateRGBSurface(SDL_SWSURFACE, w + cFontBorder * 2 + 4, h + cFontBorder * 2, 32, RMask, GMask, BMask, AMask); TryDo(finalSurface <> nil, 'RenderString: fail to create surface', true); WriteInRoundRect(finalSurface, 0, 0, Color, font, s, maxLength); TryDo(SDL_SetColorKey(finalSurface, SDL_SRCCOLORKEY, 0) = 0, errmsgTransparentSet, true); RenderStringTexLim:= Surface2Tex(finalSurface, false); SDL_FreeSurface(finalSurface); end;end;function GetNextSpeechLine(s: ansistring; ldelim: char; var startFrom: LongInt; out substr: ansistring): boolean;var p, l, m, r: Integer; newl, skip: boolean; c : char;begin m:= Length(s); substr:= ''; SetLengthA(substr, m); // number of chars read r:= 0; // number of chars to be written l:= 0; newl:= true; for p:= max(1, startFrom) to m do begin inc(r); // read char from source string c:= s[p]; // strip empty lines, spaces and newlines on beginnings of line skip:= ((newl or (p = m)) and ((c = ' ') or (c = ldelim))); if (not skip) then begin newl:= (c = ldelim); // stop if we went past the end of the line if newl then break; // copy current char to output substring inc(l); substr[l]:= c; end; end; inc(startFrom, r); SetLengthA(substr, l); GetNextSpeechLine:= (l > 0);end;function RenderSpeechBubbleTex(s: ansistring; SpeechType: Longword; font: THWFont): PTexture;var textWidth, textHeight, x, y, w, h, i, j, pos, line, numLines, edgeWidth, edgeHeight, cornerWidth, cornerHeight: LongInt; finalSurface, tmpsurf, rotatedEdge: PSDL_Surface; rect: TSDL_Rect; {$IFNDEF PAS2C} chars: set of char = [#9,' ',';',':','?','!',',']; {$ENDIF} substr: ansistring; edge, corner, tail: TSPrite;begin if cOnlyStats then exit(nil); case SpeechType of 1: begin edge:= sprSpeechEdge; corner:= sprSpeechCorner; tail:= sprSpeechTail; end; 2: begin edge:= sprThoughtEdge; corner:= sprThoughtCorner; tail:= sprThoughtTail; end; 3: begin edge:= sprShoutEdge; corner:= sprShoutCorner; tail:= sprShoutTail; end else exit(nil) end; edgeHeight:= SpritesData[edge].Height; edgeWidth:= SpritesData[edge].Width; cornerWidth:= SpritesData[corner].Width; cornerHeight:= SpritesData[corner].Height; // This one screws up WrapText //s:= 'This is the song that never ends. ''cause it goes on and on my friends. Some people, started singing it not knowing what it was. And they''ll just go on singing it forever just because... This is the song that never ends...'; // This one does not //s:= 'This is the song that never ends. cause it goes on and on my friends. Some people, started singing it not knowing what it was. And they will go on singing it forever just because... This is the song that never ends... '; numLines:= 0; if length(s) = 0 then s:= '...'; font:= CheckCJKFont(s, font); w:= 0; h:= 0; // avoid compiler hints TTF_SizeUTF8(Fontz[font].Handle, PChar(s), @w, @h); if w<8 then w:= 8; j:= 0; if (length(s) > 20) then begin w:= 0; i:= round(Sqrt(length(s)) * 2); {$IFNDEF PAS2C} s:= WrapText(s, #1, chars, i); {$ENDIF} pos:= 1; line:= 0; // Find the longest line for the purposes of centring the text. Font dependant. while GetNextSpeechLine(s, #1, pos, substr) do begin inc(numLines); i:= 0; j:= 0; TTF_SizeUTF8(Fontz[font].Handle, PChar(substr), @i, @j); if i > w then w:= i; end; end else numLines := 1; if numLines < 1 then begin s:= '...'; numLines:= 1; end; textWidth:=((w-(cornerWidth-edgeWidth)*2) div edgeWidth)*edgeWidth+edgeWidth; textHeight:=(((numlines * h + 2)-((cornerHeight-edgeWidth)*2)) div edgeWidth)*edgeWidth; textHeight:=max(textHeight,edgeWidth); //textWidth:=max(textWidth,SpritesData[tail].Width); rect.x:= 0; rect.y:= 0; rect.w:= textWidth + (cornerWidth * 2); rect.h:= textHeight + cornerHeight*2 - edgeHeight + SpritesData[tail].Height; //s:= inttostr(w) + ' ' + inttostr(numlines) + ' ' + inttostr(rect.x) + ' '+inttostr(rect.y) + ' ' + inttostr(rect.w) + ' ' + inttostr(rect.h); finalSurface:= SDL_CreateRGBSurface(SDL_SWSURFACE, rect.w, rect.h, 32, RMask, GMask, BMask, AMask); TryDo(finalSurface <> nil, 'RenderString: fail to create surface', true); //////////////////////////////// CORNERS /////////////////////////////// copyToXY(SpritesData[corner].Surface, finalSurface, 0, 0); /////////////////// NW flipSurface(SpritesData[corner].Surface, true); // store all 4 versions in memory to avoid repeated flips? x:= 0; y:= textHeight + cornerHeight -1; copyToXY(SpritesData[corner].Surface, finalSurface, x, y); /////////////////// SW flipSurface(SpritesData[corner].Surface, false); x:= rect.w-cornerWidth-1; y:= textHeight + cornerHeight -1; copyToXY(SpritesData[corner].Surface, finalSurface, x, y); /////////////////// SE flipSurface(SpritesData[corner].Surface, true); x:= rect.w-cornerWidth-1; y:= 0; copyToXY(SpritesData[corner].Surface, finalSurface, x, y); /////////////////// NE flipSurface(SpritesData[corner].Surface, false); // restore original position //////////////////////////////// END CORNERS /////////////////////////////// //////////////////////////////// EDGES ////////////////////////////////////// x:= cornerWidth; y:= 0; while x < rect.w-cornerWidth-1 do begin copyToXY(SpritesData[edge].Surface, finalSurface, x, y); ///////////////// top edge inc(x,edgeWidth); end; flipSurface(SpritesData[edge].Surface, true); x:= cornerWidth; y:= textHeight + cornerHeight*2 - edgeHeight-1; while x < rect.w-cornerWidth-1 do begin copyToXY(SpritesData[edge].Surface, finalSurface, x, y); ///////////////// bottom edge inc(x,edgeWidth); end; flipSurface(SpritesData[edge].Surface, true); // restore original position rotatedEdge:= SDL_CreateRGBSurface(SDL_SWSURFACE, edgeHeight, edgeWidth, 32, RMask, GMask, BMask, AMask); x:= rect.w - edgeHeight - 1; y:= cornerHeight; //// initially was going to rotate in place, but the SDL spec claims width/height are read only copyRotatedSurface(SpritesData[edge].Surface,rotatedEdge); while y < textHeight + cornerHeight do begin copyToXY(rotatedEdge, finalSurface, x, y); inc(y,edgeWidth); end; flipSurface(rotatedEdge, false); // restore original position x:= 0; y:= cornerHeight; while y < textHeight + cornerHeight do begin copyToXY(rotatedEdge, finalSurface, x, y); inc(y,edgeWidth); end; //////////////////////////////// END EDGES ////////////////////////////////////// x:= cornerWidth; y:= textHeight + cornerHeight * 2 - edgeHeight - 1; copyToXY(SpritesData[tail].Surface, finalSurface, x, y); rect.x:= edgeHeight; rect.y:= edgeHeight; rect.w:= rect.w - edgeHeight * 2; rect.h:= textHeight + cornerHeight * 2 - edgeHeight * 2; i:= rect.w; j:= rect.h; SDL_FillRect(finalSurface, @rect, cWhiteColor); pos:= 1; line:= 0; while GetNextSpeechLine(s, #1, pos, substr) do begin tmpsurf:= TTF_RenderUTF8_Blended(Fontz[Font].Handle, PChar(substr), cNearBlackColorChannels); rect.x:= edgeHeight + 1 + ((i - w) div 2); // trying to more evenly position the text, vertically rect.y:= edgeHeight + ((j-(numLines*h)) div 2) + line * h; SDLTry(tmpsurf <> nil, 'TTF_Init', true); SDL_UpperBlit(tmpsurf, nil, finalSurface, @rect); SDL_FreeSurface(tmpsurf); inc(line); end; RenderSpeechBubbleTex:= Surface2Tex(finalSurface, true); SDL_FreeSurface(rotatedEdge); SDL_FreeSurface(finalSurface);end;end.