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-rw-r--r--Game/Code/Classes/ULyrics.pas700
1 files changed, 406 insertions, 294 deletions
diff --git a/Game/Code/Classes/ULyrics.pas b/Game/Code/Classes/ULyrics.pas
index e5427773..eced2991 100644
--- a/Game/Code/Classes/ULyrics.pas
+++ b/Game/Code/Classes/ULyrics.pas
@@ -16,6 +16,10 @@ uses
UMusic;
type
+ // stores two textures for enabled/disabled states
+ TPlayerIconTex = array [0..1] of TTexture;
+
+ PLyricWord = ^TLyricWord;
TLyricWord = record
X: Real; // left corner
Width: Real; // width
@@ -34,34 +38,35 @@ type
Size: Byte; // fontsize
Words: ALyricWord; // words in this line
CurWord: Integer; // current active word idx (only valid if line is active)
- Start: Cardinal; // start of this line in quarters
- Length: Cardinal; // length in quarters
+ Start: Integer; // start of this line in quarters (Note: negative start values are possible due to gap)
+ StartNote: Integer; // start of the first note of this line in quarters
+ Length: Integer; // length in quarters (from start of first to the end of the last note)
HasFreestyle: Boolean; // one or more word are freestyle?
CountFreestyle: Integer; // how often there is a change from freestyle to non freestyle in this line
Players: Byte; // players that should sing that line (bitset, Player1: 1, Player2: 2, Player3: 4)
- Done: Boolean; // is sentence already sung?
- LastLine: Boolean; // is this the last line ob the song?
+ LastLine: Boolean; // is this the last line of the song?
+
+ constructor Create();
+ destructor Destroy(); override;
+ procedure Reset();
end;
TLyricEngine = class
private
- EoLastSentence: Real; // end of the previous sentence (in beats)
- LastDrawBeat: Real;
+ LastDrawBeat: Real;
UpperLine: TLyricLine; // first line displayed (top)
LowerLine: TLyricLine; // second lind displayed (bottom)
- QueueLine: TLyricLine; // third line (queue and will be displayed when next line is finished)
+ QueueLine: TLyricLine; // third line (will be displayed when lower line is finished)
- IndicatorTex: TTexture; // texture for lyric indikator
- BallTex: TTexture; // texture of the ball for the lyric effect
+ IndicatorTex: TTexture; // texture for lyric indikator
+ BallTex: TTexture; // texture of the ball for the lyric effect
- inQueue: Boolean; // is line in queue
- LCounter: Word; // line counter
+ QueueFull: Boolean; // set to true if the queue is full and a line will be replaced with the next AddLine
+ LCounter: Word; // line counter
// duet mode - textures for player icons
- PlayerIconTex: array[0..5] of // player idx
- array [0..1] of // enabled disabled
- TTexture;
-
+ // FIXME: do not use a fixed player count, use MAX_PLAYERS instead
+ PlayerIconTex: array[0..5] of TPlayerIconTex;
//Some helper Procedures for Lyric Drawing
procedure DrawLyrics (Beat: Real);
@@ -93,14 +98,14 @@ type
FadeOutEffect: Byte; //Effect for Line Fading out: 0: No Effect; 1: Fade Effect; 2: Move Upwards
}
- UseLinearFilter:Boolean; //Should Linear Tex Filter be used
+ UseLinearFilter: Boolean; //Should Linear Tex Filter be used
// song specific settings
BPM: Real;
Resolution: Integer;
// properties to easily read options of this class
- property LineinQueue: Boolean read inQueue; // line in queue?
+ property IsQueueFull: Boolean read QueueFull; // line in queue?
property LineCounter: Word read LCounter; // lines that were progressed so far (after last clear)
procedure AddLine(Line: PLine); // adds a line to the queue, if there is space
@@ -112,6 +117,8 @@ type
function GetUpperLine(): TLyricLine;
function GetLowerLine(): TLyricLine;
+ function GetUpperLineIndex(): Integer;
+
constructor Create; overload;
constructor Create(ULX,ULY,ULW,ULS,LLX,LLY,LLW,LLS: Real); overload;
procedure LoadTextures;
@@ -151,7 +158,42 @@ begin
glColor4f(Color.R, Color.G, Color.B, Min(Color.A, Alpha));
end;
+{ TLyricLine }
+constructor TLyricLine.Create();
+begin
+ inherited;
+ Reset();
+end;
+
+destructor TLyricLine.Destroy();
+begin
+ SetLength(Words, 0);
+ inherited;
+end;
+
+procedure TLyricLine.Reset();
+begin
+ Start := 0;
+ StartNote := 0;
+ Length := 0;
+ LastLine := False;
+
+ Text := '';
+ Width := 0;
+
+ // duet mode: players of that line (default: all)
+ Players := $FF;
+
+ SetLength(Words, 0);
+ CurWord := -1;
+
+ HasFreestyle := False;
+ CountFreestyle := 0;
+end;
+
+
+{ TLyricEngine }
//---------------
// Create - Constructor, just get Memory
@@ -163,18 +205,14 @@ begin
BPM := 0;
Resolution := 0;
LCounter := 0;
- inQueue := False;
+ QueueFull := False;
UpperLine := TLyricLine.Create;
LowerLine := TLyricLine.Create;
QueueLine := TLyricLine.Create;
- UpperLine.Done := True;
- LowerLine.Done := True;
- QueueLine.Done := True;
-
UseLinearFilter := True;
- LastDrawBeat:=0;
+ LastDrawBeat := 0;
end;
constructor TLyricEngine.Create(ULX,ULY,ULW,ULS,LLX,LLY,LLW,LLS:Real);
@@ -214,12 +252,8 @@ begin
BPM := cBPM;
Resolution := cResolution;
LCounter := 0;
- inQueue := False;
+ QueueFull := False;
- UpperLine.Done := True;
- LowerLine.Done := True;
- QueueLine.Done := True;
-
LastDrawBeat:=0;
end;
@@ -230,37 +264,25 @@ end;
procedure TLyricEngine.LoadTextures;
var
I: Integer;
-
+
function CreateLineTex: glUint;
- var
- PTexData: Pointer;
begin
- try
- // get memory
- GetMem(pTexData, 1024*64*4);
-
- // generate and bind Texture
- glGenTextures(1, @Result);
- glBindTexture(GL_TEXTURE_2D, Result);
+ // generate and bind Texture
+ glGenTextures(1, @Result);
+ glBindTexture(GL_TEXTURE_2D, Result);
- // get texture memeory
- glTexImage2D(GL_TEXTURE_2D, 0, 4, 1024, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, pTexData);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- if UseLinearFilter then
- begin
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- end;
-
- finally
- // free unused memory
- FreeMem(pTexData);
+ if UseLinearFilter then
+ begin
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
end;
end;
+
begin
-
+
// lyric indicator (bar that indicates when the line start)
IndicatorTex := Texture.LoadTexture(Skin.GetTextureFileName('LyricHelpBar'), TEXTURE_TYPE_TRANSPARENT, $FF00FF);
@@ -268,12 +290,12 @@ begin
BallTex := Texture.LoadTexture(Skin.GetTextureFileName('Ball'), TEXTURE_TYPE_TRANSPARENT, 0);
// duet mode: load player icon
- For I := 0 to 5 do
+ for I := 0 to 5 do
begin
PlayerIconTex[I][0] := Texture.LoadTexture(Skin.GetTextureFileName('LyricIcon_P' + InttoStr(I+1)), TEXTURE_TYPE_TRANSPARENT, 0);
PlayerIconTex[I][1] := Texture.LoadTexture(Skin.GetTextureFileName('LyricIconD_P' + InttoStr(I+1)), TEXTURE_TYPE_TRANSPARENT, 0);
end;
-
+
// create line textures
UpperLine.Tex := CreateLineTex;
LowerLine.Tex := CreateLineTex;
@@ -283,15 +305,20 @@ end;
//---------------
// AddLine - Adds LyricLine to queue
+// The LyricEngine stores three lines in its queue:
+// UpperLine: the upper line displayed in the lyrics
+// LowerLine: the lower line displayed in the lyrics
+// QueueLine: an offscreen line that precedes LowerLine
+// If the queue is full the next call to AddLine will replace UpperLine with
+// LowerLine, LowerLine with QueueLine and QueueLine with the Line parameter.
//---------------
-Procedure TLyricEngine.AddLine(Line: PLine);
+procedure TLyricEngine.AddLine(Line: PLine);
var
LyricLine: TLyricLine;
- countNotes: Cardinal;
- Viewport: Array[0..3] of Integer;
-
PosX: Real;
- I: Integer;
+ I: Integer;
+ CurWord: PLyricWord;
+ RenderPass: Integer;
function CalcWidth(LyricLine: TLyricLine): Real;
begin
@@ -306,20 +333,18 @@ var
begin
// only add lines, if there is space
- If not LineinQueue then
+ if not IsQueueFull then
begin
- // set pointer to line to write
-
- If (LineCounter = 0) then
+ // set LyricLine to line to write to
+ if (LineCounter = 0) then
LyricLine := UpperLine
else if (LineCounter = 1) then
LyricLine := LowerLine
else
begin
+ // now the queue is full
LyricLine := QueueLine;
-
- //now there is a queued line
- inQueue := True;
+ QueueFull := True;
end;
end
else
@@ -330,48 +355,38 @@ begin
QueueLine := LyricLine;
end;
- // sentence has notes?
- If Line = nil then
- begin
- // reset all values, if the new line is nil (lines after the last line)
- LyricLine.Start := 0;
- LyricLine.Length := 0;
- LyricLine.CurWord := -1;
- LyricLine.LastLine := False;
- LyricLine.Width := 0;
- SetLength(LyricLine.Words, 0);
- end
- else if Length(Line.Note) > 0 then
+ // reset line state
+ LyricLine.Reset();
+
+ // check if sentence has notes
+ if (Line <> nil) and (Length(Line.Note) > 0) then
begin
// copy values from SongLine to LyricLine
- CountNotes := High(Line.Note);
- LyricLine.Start := Line.Note[0].Start;
- LyricLine.Length := Line.Note[CountNotes].Start + Line.Note[CountNotes].Length - LyricLine.Start;
- LyricLine.CurWord := -1;
+ LyricLine.Start := Line.Start;
+ LyricLine.StartNote := Line.Note[0].Start;
+ LyricLine.Length := Line.Note[High(Line.Note)].Start +
+ Line.Note[High(Line.Note)].Length -
+ Line.Note[0].Start;
LyricLine.LastLine := Line.LastLine;
- // default values - set later
- LyricLine.HasFreestyle := False;
- LyricLine.CountFreestyle := 0;
- LyricLine.Text := '';
-
- // duet mode: players of that line
- LyricLine.Players := 127;
-
- //copy words
- SetLength(LyricLine.Words, CountNotes + 1);
- For I := 0 to CountNotes do
+ // copy words
+ SetLength(LyricLine.Words, Length(Line.Note));
+ for I := 0 to High(Line.Note) do
begin
LyricLine.Words[I].Start := Line.Note[I].Start;
LyricLine.Words[I].Length := Line.Note[I].Length;
LyricLine.Words[I].Text := Line.Note[I].Text;
LyricLine.Words[I].Freestyle := Line.Note[I].NoteType = ntFreestyle;
- LyricLine.HasFreestyle := LyricLine.HasFreestyle OR LyricLine.Words[I].Freestyle;
+ LyricLine.HasFreestyle := LyricLine.HasFreestyle or LyricLine.Words[I].Freestyle;
LyricLine.Text := LyricLine.Text + LyricLine.Words[I].Text;
- if (I > 0) AND LyricLine.Words[I-1].Freestyle AND not LyricLine.Words[I].Freestyle then
+ if (I > 0) and
+ LyricLine.Words[I-1].Freestyle and
+ not LyricLine.Words[I].Freestyle then
+ begin
Inc(LyricLine.CountFreestyle);
+ end;
end;
// set font params
@@ -380,6 +395,7 @@ begin
LyricLine.Size := UpperLineSize;
SetFontSize(LyricLine.Size);
SetFontItalic(False);
+ SetFontReflection(False, 0);
glColor4f(1, 1, 1, 1);
// change fontsize to fit the screen
@@ -395,61 +411,95 @@ begin
LyricLine.Width := CalcWidth(LyricLine);
end;
- // create LyricTexture - prepare OpenGL
- glGetIntegerv(GL_VIEWPORT, @ViewPort);
- glClearColor(0.0,0.0,0.0,0.0);
+ // Offscreen rendering of LyricTexture:
+ // First we will create a white transparent background to draw on.
+ // If the text was simply drawn to the screen with blending, the translucent
+ // parts of the text would be merged with the current color of the background.
+ // This would result in a texture that partly contains the screen we are
+ // drawing on. This will be visible in the fonts outline when the LyricTexture
+ // is drawn to the screen later.
+ // So we have to draw the text in TWO passes.
+ // At the first pass we copy the characters to the back-buffer in such a way
+ // that preceding characters are not repainted by following chars (otherwise
+ // some characters would be blended twice in the 2nd pass).
+ // To achieve this we disable blending and enable the depth-test. The z-buffer
+ // is used as a mask or replacement for the missing stencil-buffer. A z-value
+ // of 1 means the pixel was not assigned yet, whereas 0 stands for a pixel
+ // that was already drawn on. In addition we set the depth-func in such a way
+ // that assigned pixels (0) will not be drawn a second time.
+ // At the second pass we draw the text with blending and without depth-test.
+ // This will blend overlapping characters but not the background as it was
+ // repainted in the first pass.
+
+ glPushAttrib(GL_VIEWPORT_BIT or GL_DEPTH_BUFFER_BIT);
+ glViewPort(0, 0, 800, 600);
+ glClearColor(0, 0, 0, 0);
+ glDepthRange(0, 1);
+ glClearDepth(1);
glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
- glViewPort(0,0,800,600);
- // set word positions and line size
- PosX := 0;
- for I := 0 to High(LyricLine.Words) do
+ SetFontZ(0);
+
+ // assure blending is off and the correct depth-func is enabled
+ glDisable(GL_BLEND);
+ glDepthFunc(GL_LESS);
+
+ // we need two passes to draw the font onto the screen.
+ for RenderPass := 0 to 1 do
begin
- with LyricLine.Words[I] do
+ if (RenderPass = 0) then
+ begin
+ // first pass: simply copy each character to the screen without overlapping.
+ SetFontBlend(false);
+ glEnable(GL_DEPTH_TEST);
+ end
+ else
begin
- SetFontItalic(Freestyle);
+ // second pass: now we will blend overlapping characters.
+ SetFontBlend(true);
+ glDisable(GL_DEPTH_TEST);
+ end;
- X := PosX;
+ PosX := 0;
+
+ // set word positions and line size and draw the line to the back-buffer
+ for I := 0 to High(LyricLine.Words) do
+ begin
+ CurWord := @LyricLine.Words[I];
- //Draw Lyrics
+ SetFontItalic(CurWord.Freestyle);
+
+ CurWord.X := PosX;
+
+ // Draw Lyrics
SetFontPos(PosX, 0);
- glPrint(PChar(Text));
-
- Width := glTextWidth(PChar(Text));
- if (I < High(LyricLine.Words)) AND Freestyle AND not LyricLine.Words[I+1].Freestyle then
- Width := Width + 10
- else
- if (I = High(LyricLine.Words)) AND Freestyle then
- Width := Width + 12;
- PosX := PosX + Width;
+ glPrint(PChar(CurWord.Text));
+
+ CurWord.Width := glTextWidth(PChar(CurWord.Text));
+ if CurWord.Freestyle then
+ begin
+ if (I < High(LyricLine.Words)) and not LyricLine.Words[I+1].Freestyle then
+ CurWord.Width := CurWord.Width + 10
+ else if (I = High(LyricLine.Words)) then
+ CurWord.Width := CurWord.Width + 12;
+ end;
+ PosX := PosX + CurWord.Width;
end;
end;
- end
- else
- begin
- // create LyricTexture - prepare OpenGL
- glGetIntegerv(GL_VIEWPORT, @ViewPort);
- glClearColor(0.0,0.0,0.0,0.0);
- glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
- glViewPort(0,0,800,600);
- end;
-
- //for debugging, is this used anymore?
- //Display.ScreenShot;
-
- //Copy to Texture
- glEnable(GL_ALPHA);
- glBindTexture(GL_TEXTURE_2D, LyricLine.Tex);
- glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 600-64, 1024, 64, 0);
- glDisable(GL_ALPHA);
+
+ // copy back-buffer to texture
+ glBindTexture(GL_TEXTURE_2D, LyricLine.Tex);
+ glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 600-64, 1024, 64, 0);
- //Clear Buffer
- glClearColor(0,0,0,0);
- glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
+ // restore OpenGL state
+ glPopAttrib();
- glViewPort(ViewPort[0], ViewPort[1], ViewPort[2], ViewPort[3]);
+ // clear buffer (use white to avoid flimmering if no cover/video is available)
+ glClearColor(1, 1, 1, 1);
+ glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
+ end; // if (Line <> nil) and (Length(Line.Note) > 0)
- //Increase the Counter
+ // increase the counter
Inc(LCounter);
end;
@@ -458,7 +508,7 @@ end;
// Draw - Procedure Draws Lyrics; Beat is curent Beat in Quarters
// Draw just manage the Lyrics, drawing is done by a call of DrawLyrics
//---------------
-procedure TLyricEngine.Draw (Beat: Real);
+procedure TLyricEngine.Draw(Beat: Real);
begin
DrawLyrics(Beat);
LastDrawBeat := Beat;
@@ -467,7 +517,7 @@ end;
//---------------
// DrawLyrics(private) - Helper for Draw; main Drawing procedure
//---------------
-procedure TLyricEngine.DrawLyrics (Beat: Real);
+procedure TLyricEngine.DrawLyrics(Beat: Real);
begin
DrawLyricsLine(UpperLineX, UpperLineW, UpperlineY, 15, Upperline, Beat);
DrawLyricsLine(LowerLineX, LowerLineW, LowerlineY, 15, Lowerline, Beat);
@@ -477,31 +527,29 @@ end;
// DrawPlayerIcon(private) - Helper for Draw; Draws a Playericon
//---------------
procedure TLyricEngine.DrawPlayerIcon(Player: Byte; Enabled: Boolean; X, Y, Size, Alpha: Real);
-var IEnabled: Byte;
+var
+ IEnabled: Byte;
begin
case Enabled of
- True: IEnabled := 0;
+ True: IEnabled := 0;
False: IEnabled := 1;
end;
- try
- glEnable(GL_TEXTURE_2D);
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glBindTexture(GL_TEXTURE_2D, PlayerIconTex[Player][IEnabled].TexNum);
-
- glColor4f(1,1,1,Alpha);
- glBegin(GL_QUADS);
- glTexCoord2f(0, 0); glVertex2f(X, Y);
- glTexCoord2f(0, 1); glVertex2f(X, Y + Size);
- glTexCoord2f(1, 1); glVertex2f(X + Size, Y + Size);
- glTexCoord2f(1, 0); glVertex2f(X + Size, Y);
- glEnd;
-
- finally
- glDisable(GL_BLEND);
- glDisable(GL_TEXTURE_2D);
- end;
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glBindTexture(GL_TEXTURE_2D, PlayerIconTex[Player][IEnabled].TexNum);
+
+ glColor4f(1, 1, 1, Alpha);
+ glBegin(GL_QUADS);
+ glTexCoord2f(0, 0); glVertex2f(X, Y);
+ glTexCoord2f(0, 1); glVertex2f(X, Y + Size);
+ glTexCoord2f(1, 1); glVertex2f(X + Size, Y + Size);
+ glTexCoord2f(1, 0); glVertex2f(X + Size, Y);
+ glEnd;
+
+ glDisable(GL_BLEND);
+ glDisable(GL_TEXTURE_2D);
end;
//---------------
@@ -509,24 +557,21 @@ end;
//---------------
procedure TLyricEngine.DrawBall(XBall, YBall, Alpha: Real);
begin
- try
- glEnable(GL_TEXTURE_2D);
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glBindTexture(GL_TEXTURE_2D, BallTex.TexNum);
-
- glColor4f(1,1,1, Alpha);
- glBegin(GL_QUADS);
- glTexCoord2f(0, 0); glVertex2f(XBall - 10, YBall);
- glTexCoord2f(0, 1); glVertex2f(XBall - 10, YBall + 20);
- glTexCoord2f(1, 1); glVertex2f(XBall + 10, YBall + 20);
- glTexCoord2f(1, 0); glVertex2f(XBall + 10, YBall);
- glEnd;
-
- finally
- glDisable(GL_BLEND);
- glDisable(GL_TEXTURE_2D);
- end;
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glBindTexture(GL_TEXTURE_2D, BallTex.TexNum);
+
+ glColor4f(1, 1, 1, Alpha);
+ glBegin(GL_QUADS);
+ glTexCoord2f(0, 0); glVertex2f(XBall - 10, YBall);
+ glTexCoord2f(0, 1); glVertex2f(XBall - 10, YBall + 20);
+ glTexCoord2f(1, 1); glVertex2f(XBall + 10, YBall + 20);
+ glTexCoord2f(1, 0); glVertex2f(XBall + 10, YBall);
+ glEnd;
+
+ glDisable(GL_BLEND);
+ glDisable(GL_TEXTURE_2D);
end;
//---------------
@@ -542,31 +587,36 @@ var
LyricY: Real; // top
LyricsHeight: Real; // height the lyrics are displayed
Alpha: Real; // alphalevel to fade out at end
+ CurWord, LastWord: PLyricWord; // current word
{// duet mode
IconSize: Real; // size of player icons
IconAlpha: Real; // alpha level of player icons
}
begin
- // lines with a width lower than 0, have not to be draw
- if Line.Width <= 0 then
- exit;
+ // do not draw empty lines
+ // Note: lines with no words in it do not have a valid texture
+ if (Length(Line.Words) = 0) or
+ (Line.Width <= 0) then
+ begin
+ Exit;
+ end;
// this is actually a bit more than the real font size
// it helps adjusting the "zoom-center"
- LyricsHeight:=30.5 * (Line.Size/10);
-
+ LyricsHeight := 30.5 * (Line.Size/10);
+
{
// duet mode
IconSize := (2 * Size);
IconAlpha := Frac(Beat/(Resolution*4));
-
+
DrawPlayerIcon (0, True, X, Y + (42 - IconSize) / 2 , IconSize, IconAlpha);
DrawPlayerIcon (1, True, X + IconSize + 1, Y + (42 - IconSize) / 2, IconSize, IconAlpha);
DrawPlayerIcon (2, True, X + (IconSize + 1)*2, Y + (42 - IconSize) / 2, IconSize, IconAlpha);
}
-
- LyricX := X+W/2 - Line.Width/2;
+
+ LyricX := X + W/2 - Line.Width/2;
LyricX2 := LyricX + Line.Width;
// maybe center smaller lines
@@ -575,70 +625,70 @@ begin
Alpha := 1;
- // word in the sentence is active?
- if (Line.Start < Beat) then
+ // check if this line is active (at least its first note must be active)
+ if (Beat >= Line.StartNote) then
begin
- // if this line just got active, then CurWord is still -1
- // this means, we should try to make the first word active
- // then we check if the current active word is still meant to be active
- // if not, we proceed to the next word
- if Line.CurWord = -1 then
- Line.CurWord:=0;
-
- if (Line.CurWord < High(Line.Words)) and (Beat >= (Line.Words[Line.CurWord + 1].Start)) then
- Line.CurWord:=Line.CurWord+1;
+ // if this line just got active, CurWord is -1,
+ // this means we should try to make the first word active
+ if (Line.CurWord = -1) then
+ Line.CurWord := 0;
+
+ // check if the current active word is still active.
+ // Otherwise proceed to the next word if there is one in this line.
+ // Note: the max. value of Line.CurWord is High(Line.Words)
+ if (Line.CurWord < High(Line.Words)) and
+ (Beat >= Line.Words[Line.CurWord + 1].Start) then
+ begin
+ Inc(Line.CurWord);
+ end;
FreestyleDiff := 0;
- // last word of this line finished, but this line did not hide
- if (Line.CurWord > High(Line.Words)) then
+ // determine current and last word in this line.
+ // If the end of the line is reached use the last word as current word.
+ LastWord := @Line.Words[High(Line.Words)];
+ CurWord := @Line.Words[Line.CurWord];
+
+ // calc the progress of the lyrics effect
+ Progress := (Beat - CurWord.Start) / CurWord.Length;
+ if Progress >= 1 then
+ Progress := 1;
+ if Progress <= 0 then
+ Progress := 0;
+
+ // last word of this line finished, but this line did not hide -> fade out
+ if Line.LastLine and
+ (Beat > LastWord.Start + LastWord.Length) then
+ begin
+ Alpha := 1 - (Beat - (LastWord.Start + LastWord.Length)) / 15;
+ if (Alpha < 0) then
+ Alpha := 0;
+ end;
+
+ // determine the start-/end positions of the fragment of the current word
+ CurWordStart := CurWord.X;
+ CurWordEnd := CurWord.X + CurWord.Width;
+
+ // Slide Effect
+ // simply paint the active texture to the current position
+ if Ini.LyricsEffect = 2 then
begin
- CurWordStart := Line.Words[High(Line.Words)].X + Line.Words[High(Line.Words)].Width;
+ CurWordStart := CurWordStart + CurWord.Width * Progress;
CurWordEnd := CurWordStart;
+ end;
- // fade out last line
- if Line.LastLine then
- begin
- Alpha := 1 - (Beat - (Line.Words[High(Line.Words)].Start + Line.Words[High(Line.Words)].Length)) / 15;
- if (Alpha < 0) then
- Alpha := 0;
- end;
- end
- else
+ if CurWord.Freestyle then
begin
- with Line.Words[Line.CurWord] do
+ if (Line.CurWord < High(Line.Words)) and
+ (not Line.Words[Line.CurWord + 1].Freestyle) then
begin
- Progress := (Beat - Start) / Length;
- if Progress >= 1 then
- Progress := 1;
-
- if Progress <= 0 then
- Progress := 0;
-
- CurWordStart:=X;
- CurWordEnd:=X+Width;
-
- // Slide Effect
- // simply paint the active texture to the current position
- if Ini.LyricsEffect = 2 then
- begin
- CurWordStart := CurWordStart + Width * progress;
- CurWordEnd := CurWordStart;
- end;
-
- if (Line.CurWord < High(Line.Words)) and
- Freestyle and
- (not Line.Words[Line.CurWord + 1].Freestyle) then
- begin
- FreestyleDiff := 2;
- end
- else
- if Freestyle then
- begin
- FreestyleDiff := 12;
- CurWordStart := CurWordStart - 1;
- CurWordEnd := CurWordEnd - 2;
- end;
+ FreestyleDiff := 2;
+ end
+ else
+ begin
+ FreestyleDiff := 12;
+ CurWordStart := CurWordStart - 1;
+ CurWordEnd := CurWordEnd - 2;
end;
end;
@@ -648,26 +698,43 @@ begin
glBindTexture(GL_TEXTURE_2D, Line.Tex);
// draw sentence up to current word
- if (Ini.LyricsEffect = 3) or (Ini.LyricsEffect = 4) then
+ // type 0: simple lyric effect
+ // type 3: ball lyric effect
+ // type 4: shift lyric effect
+ if (Ini.LyricsEffect in [0, 3, 4]) then
// ball lyric effect - only highlight current word and not that ones before in this line
glColorRGB(LineColor_en, Alpha)
else
glColorRGB(LineColor_act, Alpha);
glBegin(GL_QUADS);
- glTexCoord2f(0, 1); glVertex2f(LyricX, LyricY);
- glTexCoord2f(0, 1-LyricsHeight/64); glVertex2f(LyricX, LyricY + LyricsHeight);
- glTexCoord2f(CurWordStart/1024, 1-LyricsHeight/64); glVertex2f(LyricX+CurWordStart, LyricY + LyricsHeight);
- glTexCoord2f((CurWordStart+FreestyleDiff)/1024, 1); glVertex2f(LyricX+CurWordStart+FreestyleDiff, LyricY);
+ glTexCoord2f(0, 1);
+ glVertex2f(LyricX, LyricY);
+
+ glTexCoord2f(0, 1-LyricsHeight/64);
+ glVertex2f(LyricX, LyricY + LyricsHeight);
+
+ glTexCoord2f(CurWordStart/1024, 1-LyricsHeight/64);
+ glVertex2f(LyricX + CurWordStart, LyricY + LyricsHeight);
+
+ glTexCoord2f((CurWordStart + FreestyleDiff)/1024, 1);
+ glVertex2f(LyricX + CurWordStart + FreestyleDiff, LyricY);
glEnd;
// draw rest of sentence
- glColorRGB(LineColor_en);
+ glColorRGB(LineColor_en, Alpha);
glBegin(GL_QUADS);
- glTexCoord2f((CurWordEnd+FreestyleDiff)/1024, 1); glVertex2f(LyricX+CurWordEnd+FreestyleDiff, LyricY);
- glTexCoord2f(CurWordEnd/1024, 1-LyricsHeight/64); glVertex2f(LyricX+CurWordEnd, LyricY + LyricsHeight);
- glTexCoord2f(Line.Width/1024, 1-LyricsHeight/64); glVertex2f(LyricX2, LyricY + LyricsHeight);
- glTexCoord2f(Line.Width/1024, 1); glVertex2f(LyricX2, LyricY);
+ glTexCoord2f((CurWordEnd + FreestyleDiff)/1024, 1);
+ glVertex2f(LyricX + CurWordEnd + FreestyleDiff, LyricY);
+
+ glTexCoord2f(CurWordEnd/1024, 1-LyricsHeight/64);
+ glVertex2f(LyricX + CurWordEnd, LyricY + LyricsHeight);
+
+ glTexCoord2f(Line.Width/1024, 1-LyricsHeight/64);
+ glVertex2f(LyricX2, LyricY + LyricsHeight);
+
+ glTexCoord2f(Line.Width/1024, 1);
+ glVertex2f(LyricX2, LyricY);
glEnd;
// draw active word:
@@ -675,78 +742,99 @@ begin
// type 3: ball lyric effect
// type 4: shift lyric effect
// only change the color of the current word
- if (Ini.LyricsEffect = 0) or (Ini.LyricsEffect = 3) or (Ini.LyricsEffect = 4) then
+ if (Ini.LyricsEffect in [0, 3, 4]) then
begin
- { // maybe fade in?
- glColor4f(LineColor_en.r,LineColor_en.g,LineColor_en.b,1-progress);
- glBegin(GL_QUADS);
- glTexCoord2f(CurWordStart/1024, 1); glVertex2f(LyricX+CurWordStart, Y);
- glTexCoord2f(CurWordStart/1024, 0); glVertex2f(LyricX+CurWordStart, Y + 64);
- glTexCoord2f(CurWordEnd/1024, 0); glVertex2f(LyricX+CurWordEnd, Y + 64);
- glTexCoord2f(CurWordEnd/1024, 1); glVertex2f(LyricX+CurWordEnd, Y);
- glEnd;
- }
-
if (Ini.LyricsEffect = 4) then
- LyricY := LyricY - 8 * (1-progress);
-
- glColor3f(LineColor_act.r,LineColor_act.g,LineColor_act.b);
+ LyricY := LyricY - 8 * (1-Progress);
+
+ glColor4f(LineColor_act.r, LineColor_act.g, LineColor_act.b, Alpha);
glBegin(GL_QUADS);
- glTexCoord2f((CurWordStart+FreestyleDiff)/1024, 1); glVertex2f(LyricX+CurWordStart+FreestyleDiff, LyricY);
- glTexCoord2f(CurWordStart/1024, 0); glVertex2f(LyricX+CurWordStart, LyricY + 64);
- glTexCoord2f(CurWordEnd/1024, 0); glVertex2f(LyricX+CurWordEnd, LyricY + 64);
- glTexCoord2f((CurWordEnd+FreestyleDiff)/1024, 1); glVertex2f(LyricX+CurWordEnd+FreestyleDiff, LyricY);
+ glTexCoord2f((CurWordStart + FreestyleDiff)/1024, 1);
+ glVertex2f(LyricX + CurWordStart + FreestyleDiff, LyricY);
+
+ glTexCoord2f(CurWordStart/1024, 0);
+ glVertex2f(LyricX + CurWordStart, LyricY + 64);
+
+ glTexCoord2f(CurWordEnd/1024, 0);
+ glVertex2f(LyricX + CurWordEnd, LyricY + 64);
+
+ glTexCoord2f((CurWordEnd + FreestyleDiff)/1024, 1);
+ glVertex2f(LyricX + CurWordEnd + FreestyleDiff, LyricY);
glEnd;
-
+
if (Ini.LyricsEffect = 4) then
- LyricY := LyricY + 8 * (1-progress);
+ LyricY := LyricY + 8 * (1-Progress);
end
-
+
// draw active word:
// type 1: zoom lyric effect
// change color and zoom current word
else if Ini.LyricsEffect = 1 then
begin
glPushMatrix;
- glTranslatef(LyricX+CurWordStart+(CurWordEnd-CurWordStart)/2,LyricY+LyricsHeight/2,0);
- glScalef(1.0+(1-progress)/2,1.0+(1-progress)/2,1.0);
- glColor4f(LineColor_en.r,LineColor_en.g,LineColor_en.b,1-progress);
- glBegin(GL_QUADS);
- glTexCoord2f((CurWordStart+FreestyleDiff)/1024, 1); glVertex2f(-(CurWordEnd-CurWordStart)/2+FreestyleDiff, -LyricsHeight/2);
- glTexCoord2f(CurWordStart/1024, 1-LyricsHeight/64); glVertex2f(-(CurWordEnd-CurWordStart)/2, + LyricsHeight/2);
- glTexCoord2f(CurWordEnd/1024, 1-LyricsHeight/64); glVertex2f((CurWordEnd-CurWordStart)/2, + LyricsHeight/2);
- glTexCoord2f((CurWordEnd+FreestyleDiff)/1024, 1); glVertex2f((CurWordEnd-CurWordStart)/2+FreestyleDiff, -LyricsHeight/2);
- glEnd;
- glColor4f(LineColor_act.r,LineColor_act.g,LineColor_act.b,1);
+
+ glTranslatef(LyricX + CurWordStart + (CurWordEnd-CurWordStart)/2,
+ LyricY + LyricsHeight/2, 0);
+
+ // set current zoom factor
+ glScalef(1.0 + (1-Progress) * 0.5, 1.0 + (1-Progress) * 0.5, 1.0);
+
+ glColor4f(LineColor_act.r, LineColor_act.g, LineColor_act.b, Alpha);
glBegin(GL_QUADS);
- glTexCoord2f((CurWordStart+FreestyleDiff)/1024, 1); glVertex2f(-(CurWordEnd-CurWordStart)/2+FreestyleDiff, -LyricsHeight/2);
- glTexCoord2f(CurWordStart/1024, 1-LyricsHeight/64); glVertex2f(-(CurWordEnd-CurWordStart)/2, + LyricsHeight/2);
- glTexCoord2f(CurWordEnd/1024, 1-LyricsHeight/64); glVertex2f((CurWordEnd-CurWordStart)/2, + LyricsHeight/2);
- glTexCoord2f((CurWordEnd+FreestyleDiff)/1024, 1); glVertex2f((CurWordEnd-CurWordStart)/2+FreestyleDiff, -LyricsHeight/2);
+ glTexCoord2f((CurWordStart + FreestyleDiff)/1024, 1);
+ glVertex2f(-(CurWordEnd-CurWordStart)/2 + FreestyleDiff, -LyricsHeight/2);
+
+ glTexCoord2f(CurWordStart/1024, 1-LyricsHeight/64);
+ glVertex2f(-(CurWordEnd-CurWordStart)/2, LyricsHeight/2);
+
+ glTexCoord2f(CurWordEnd/1024, 1-LyricsHeight/64);
+ glVertex2f((CurWordEnd-CurWordStart)/2, LyricsHeight/2);
+
+ glTexCoord2f((CurWordEnd + FreestyleDiff)/1024, 1);
+ glVertex2f((CurWordEnd-CurWordStart)/2 + FreestyleDiff, -LyricsHeight/2);
glEnd;
+
glPopMatrix;
end;
glDisable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
-
+
+ // type 3: ball lyric effect
if Ini.LyricsEffect = 3 then
- DrawBall(LyricX + CurWordStart + (CurWordEnd - CurWordStart) * progress, LyricY - 15 - 15*sin(progress * pi), Alpha);
+ begin
+ DrawBall(LyricX + CurWordStart + (CurWordEnd-CurWordStart) * Progress,
+ LyricY - 15 - 15*sin(Progress * Pi), Alpha);
+ end;
end
else
begin
- // draw complete inactive sentence if line hasn't started but is already shown
+ // this section is called if the whole line can be drawn at once and no
+ // word has to be emphasized.
+
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBindTexture(GL_TEXTURE_2D, Line.Tex);
- glColorRGB(LineColor_dis);
+ // enable the upper, disable the lower line
+ if (Line = UpperLine) then
+ glColorRGB(LineColor_en)
+ else
+ glColorRGB(LineColor_dis);
+
glBegin(GL_QUADS);
- glTexCoord2f(0, 1); glVertex2f(LyricX, LyricY);
- glTexCoord2f(0, 1-LyricsHeight/64); glVertex2f(LyricX, LyricY + LyricsHeight);
- glTexCoord2f(Line.Width/1024, 1-LyricsHeight/64); glVertex2f(LyricX2, LyricY + LyricsHeight);
- glTexCoord2f(Line.Width/1024, 1); glVertex2f(LyricX2, LyricY);
+ glTexCoord2f(0, 1);
+ glVertex2f(LyricX, LyricY);
+
+ glTexCoord2f(0, 1-LyricsHeight/64);
+ glVertex2f(LyricX, LyricY + LyricsHeight);
+
+ glTexCoord2f(Line.Width/1024, 1-LyricsHeight/64);
+ glVertex2f(LyricX2, LyricY + LyricsHeight);
+
+ glTexCoord2f(Line.Width/1024, 1);
+ glVertex2f(LyricX2, LyricY);
glEnd;
glDisable(GL_BLEND);
@@ -754,15 +842,39 @@ begin
end;
end;
+//---------------
+// GetUpperLine() - Returns a reference to the upper line
+//---------------
function TLyricEngine.GetUpperLine(): TLyricLine;
begin
Result := UpperLine;
end;
+//---------------
+// GetLowerLine() - Returns a reference to the lower line
+//---------------
function TLyricEngine.GetLowerLine(): TLyricLine;
begin
Result := LowerLine;
end;
+//---------------
+// GetUpperLineIndex() - Returns the index of the upper line
+//---------------
+function TLyricEngine.GetUpperLineIndex(): Integer;
+const
+ QUEUE_SIZE = 3;
+begin
+ // no line in queue
+ if (LineCounter <= 0) then
+ Result := -1
+ // no line has been removed from queue yet
+ else if (LineCounter <= QUEUE_SIZE) then
+ Result := 0
+ // lines have been removed from queue already
+ else
+ Result := LineCounter - QUEUE_SIZE;
+end;
+
end.