{$INCLUDE "options.inc"}
unit uRenderUtils;
interface
uses 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 SDL
procedure copyToXY(src, dest: PSDL_Surface; destX, destY: LongInt);
function RenderStringTex(s: ansistring; Color: Longword; font: THWFont): PTexture;
function RenderSpeechBubbleTex(s: ansistring; SpeechType: Longword; font: THWFont): PTexture;
procedure DrawRoundRect(rect: PSDL_Rect; BorderColor, FillColor: Longword; Surface: PSDL_Surface; Clear: boolean);
implementation
uses 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;
var w, h: LongInt;
tmpsurf: PSDL_Surface;
clr: TSDL_Color;
finalRect: TSDL_Rect;
begin
TTF_SizeUTF8(Fontz[Font].Handle, Str2PChar(s), w, h);
finalRect.x:= X;
finalRect.y:= Y;
finalRect.w:= w + FontBorder * 2 + 4;
finalRect.h:= h + FontBorder * 2;
DrawRoundRect(@finalRect, cWhiteColor, endian(cNearBlackColorChannels.value), 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, Str2PChar(s), clr);
finalRect.x:= X + FontBorder + 2;
finalRect.y:= Y + FontBorder;
SDLTry(tmpsurf <> nil, true);
SDL_UpperBlit(tmpsurf, nil, Surface, @finalRect);
SDL_FreeSurface(tmpsurf);
finalRect.x:= X;
finalRect.y:= Y;
finalRect.w:= w + FontBorder * 2 + 4;
finalRect.h:= h + FontBorder * 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);
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;
end;
procedure copyToXY(src, dest: PSDL_Surface; destX, destY: LongInt);
var srcX, srcY, i, j, maxDest: LongInt;
srcPixels, destPixels: PLongWordArray;
r0, g0, b0, a0, r1, g1, b1, a1: Byte;
begin
maxDest:= (dest^.pitch div 4) * dest^.h;
srcPixels:= src^.pixels;
destPixels:= dest^.pixels;
for srcX:= 0 to src^.w - 1 do
for srcY:= 0 to src^.h - 1 do
begin
i:= (destY + srcY) * (dest^.pitch div 4) + destX + srcX;
j:= srcY * (src^.pitch div 4) + srcX;
if (i < maxDest) 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(a1)) + a1 * LongInt(a1)) div 255;
destPixels^[i]:= SDL_MapRGBA(dest^.format, r0, g0, b0, a0);
end;
end;
end;
procedure copyRotatedSurface(src, dest: PSDL_Surface); // this is necessary since width/height are read only in SDL, apparently
var 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);
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;
end;
function RenderStringTex(s: ansistring; Color: Longword; font: THWFont): PTexture;
var w, h: LongInt;
finalSurface: PSDL_Surface;
begin
if length(s) = 0 then s:= ' ';
font:= CheckCJKFont(s, font);
w:= 0; h:= 0; // avoid compiler hints
TTF_SizeUTF8(Fontz[font].Handle, Str2PChar(s), w, h);
finalSurface:= SDL_CreateRGBSurface(SDL_SWSURFACE, w + FontBorder * 2 + 4, h + FontBorder * 2,
32, RMask, GMask, BMask, AMask);
TryDo(finalSurface <> nil, 'RenderString: fail to create surface', true);
WriteInRoundRect(finalSurface, 0, 0, Color, font, s);
TryDo(SDL_SetColorKey(finalSurface, SDL_SRCCOLORKEY, 0) = 0, errmsgTransparentSet, true);
RenderStringTex:= Surface2Tex(finalSurface, false);
SDL_FreeSurface(finalSurface);
end;
function RenderSpeechBubbleTex(s: ansistring; SpeechType: Longword; font: THWFont): PTexture;
var textWidth, textHeight, x, y, w, h, i, j, pos, prevpos, line, numLines, edgeWidth, edgeHeight, cornerWidth, cornerHeight: LongInt;
finalSurface, tmpsurf, rotatedEdge: PSDL_Surface;
rect: TSDL_Rect;
chars: set of char = [#9,' ',';',':','?','!',','];
substr: shortstring;
edge, corner, tail: TSPrite;
begin
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;
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, Str2PChar(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);
s:= WrapText(s, #1, chars, i);
pos:= 1; prevpos:= 0; line:= 0;
// Find the longest line for the purposes of centring the text. Font dependant.
while pos <= length(s) do
begin
if (s[pos] = #1) or (pos = length(s)) then
begin
inc(numlines);
if s[pos] <> #1 then inc(pos);
while s[prevpos+1] = ' ' do inc(prevpos);
substr:= copy(s, prevpos+1, pos-prevpos-1);
i:= 0; j:= 0;
TTF_SizeUTF8(Fontz[font].Handle, Str2PChar(substr), i, j);
if i > w then w:= i;
prevpos:= pos;
end;
inc(pos);
end;
end
else numLines := 1;
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; prevpos:= 0; line:= 0;
while pos <= length(s) do
begin
if (s[pos] = #1) or (pos = length(s)) then
begin
if s[pos] <> #1 then inc(pos);
while s[prevpos+1] = ' 'do inc(prevpos);
substr:= copy(s, prevpos+1, pos-prevpos-1);
if Length(substr) <> 0 then
begin
tmpsurf:= TTF_RenderUTF8_Blended(Fontz[Font].Handle, Str2PChar(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, true);
SDL_UpperBlit(tmpsurf, nil, finalSurface, @rect);
SDL_FreeSurface(tmpsurf);
inc(line);
prevpos:= pos;
end;
end;
inc(pos);
end;
RenderSpeechBubbleTex:= Surface2Tex(finalSurface, true);
SDL_FreeSurface(rotatedEdge);
SDL_FreeSurface(finalSurface);
end;
end.