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-rw-r--r--Game/Code/Classes/TextGL.pas244
1 files changed, 127 insertions, 117 deletions
diff --git a/Game/Code/Classes/TextGL.pas b/Game/Code/Classes/TextGL.pas
index 3521c5be..e36fcd2c 100644
--- a/Game/Code/Classes/TextGL.pas
+++ b/Game/Code/Classes/TextGL.pas
@@ -34,7 +34,8 @@ 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 SetFontReflection(Enable:boolean;Spacing: real); // enables/disables text reflection
+procedure SetFontBlend(Enable: boolean); // enables/disables blending
// Start of SDL_ttf
//function NextPowerOfTwo(Value: integer): integer;
@@ -58,6 +59,7 @@ type
ColB: real;
end;
+ PFont = ^TFont;
TFont = record
Tex: TTexture;
Width: array[0..255] of byte;
@@ -68,6 +70,7 @@ type
Italic: boolean;
Reflection: boolean;
ReflectionSpacing: real;
+ Blend: boolean;
end;
@@ -82,7 +85,7 @@ var
// Colours for the reflection
TempColor: array[0..3] of GLfloat;
PTempColor: PGLfloat;
-
+
implementation
uses
@@ -172,6 +175,9 @@ begin
{ 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
@@ -214,85 +220,87 @@ var
PR, PB: real;
XItal: real; // X shift for italic type letter
ReflectionSpacing: real; // Distance of the reflection
+ Font: PFont;
+ Tex: PTexture;
begin
- with Fonts[ActFont].Tex do
- begin
- FWidth := Fonts[ActFont].Width[Ord(Letter)];
+ Font := @Fonts[ActFont];
+ Tex := @Font.Tex;
- W := FWidth * (H/30) * Fonts[ActFont].AspectW;
+ FWidth := Font.Width[Ord(Letter)];
- // set texture positions
- TexX := (ord(Letter) mod 16) * 1/16 + 1/32 - FWidth/1024 - Fonts[ActFont].Outline/1024;
- TexY := (ord(Letter) div 16) * 1/16 + 2/1024;
- TexR := (ord(Letter) mod 16) * 1/16 + 1/32 + FWidth/1024 + Fonts[ActFont].Outline/1024;
- TexB := (1 + ord(Letter) div 16) * 1/16 - 2/1024;
+ Tex.W := FWidth * (Tex.H/30) * Font.AspectW;
- TexHeight := TexB - TexY;
+ // 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;
- // set vector positions
- PL := X - Fonts[ActFont].Outline * (H/30) * Fonts[ActFont].AspectW /2;
- PT := Y;
- PR := PL + W + Fonts[ActFont].Outline * (H/30) * Fonts[ActFont].AspectW;
- PB := PT + H;
+ TexHeight := TexB - TexY;
- if Fonts[ActFont].Italic = false then
- XItal := 0
- else
- XItal := 12;
+ // 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;
- glEnable(GL_TEXTURE_2D);
+ if Font.Italic = false then
+ XItal := 0
+ else
+ XItal := 12;
+
+ if (Font.Blend) then
+ begin
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glBindTexture(GL_TEXTURE_2D, TexNum);
+ 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 = true then
+ begin
+ ReflectionSpacing := Font.ReflectionSpacing + Tex.H/2;
+
+ glDepthRange(0, 10);
+ glDepthFunc(GL_LEQUAL);
+ glEnable(GL_DEPTH_TEST);
glBegin(GL_QUADS);
- try
- 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);
- finally
- glEnd;
- end;
+ 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
- // <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 Fonts[ActFont].Reflection = true then
- begin
- ReflectionSpacing := Fonts[ActFont].ReflectionSpacing + H/2;
-
- glDepthRange(0, 10);
- glDepthFunc(GL_LEQUAL);
- glEnable(GL_DEPTH_TEST);
-
- glBegin(GL_QUADS);
- try
- glColor4f(TempColor[0], TempColor[1], TempColor[2], 0);
- glTexCoord2f(TexX, TexY + TexHeight/2);
- glVertex3f(PL, PB + ReflectionSpacing - H/2, z);
-
- glColor4f(TempColor[0], TempColor[1], TempColor[2], Alpha-0.3);
- glTexCoord2f(TexX, TexB );
- glVertex3f(PL + XItal, PT + ReflectionSpacing, z);
-
- glTexCoord2f(TexR, TexB );
- glVertex3f(PR + XItal, PT + ReflectionSpacing, z);
-
- glColor4f(TempColor[0], TempColor[1], TempColor[2], 0);
- glTexCoord2f(TexR, TexY + TexHeight/2);
- glVertex3f(PR, PB + ReflectionSpacing - H/2, z);
- finally
- glEnd;
- end;
- glDisable(GL_DEPTH_TEST);
- end; // reflection
-
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_BLEND);
-
- X := X + W;
- end; // with
+ glDisable(GL_TEXTURE_2D);
+ if (Font.Blend) then
+ glDisable(GL_BLEND);
+
+ Tex.X := Tex.X + Tex.W;
//write the colour back
glColor4fv(PTempColor);
@@ -308,50 +316,59 @@ var
PR, PB: real;
OutTemp: real;
XItal: real;
+ Font: PFont;
+ Tex: PTexture;
begin
- with Fonts[ActFont].Tex do
+ Font := @Fonts[ActFont];
+ Tex := @Font.Tex;
+
+ FWidth := Fonts[ActFont].Width[Ord(Letter)];
+
+ Tex.W := FWidth * (Tex.H/30) * Fonts[ActFont].AspectW;
+ //Tex.H := 30;
+ OutTemp := Fonts[ActFont].Outline * (Tex.H/30) * Fonts[ActFont].AspectW;
+
+ // set texture positions
+ TexX := (ord(Letter) mod 16) * 1/16 + 1/32 - FWidth/1024 - Fonts[ActFont].Outline/1024;
+ TexY := (ord(Letter) div 16) * 1/16 + 2/1024; // 2/1024
+ TexR := (ord(Letter) mod 16) * 1/16 + 1/32 + FWidth/1024 + Fonts[ActFont].Outline/1024;
+ TexB := (1 + ord(Letter) div 16) * 1/16 - 2/1024;
+
+ TexTemp := TexX + Start * (TexR - TexX);
+ TexR := TexX + Finish * (TexR - TexX);
+ TexX := TexTemp;
+
+ // set vector positions
+ PL := Tex.X - OutTemp / 2 + OutTemp * Start;
+ PT := Tex.Y;
+ PR := PL + (Tex.W + OutTemp) * (Finish - Start);
+ PB := PT + Tex.H;
+ if Fonts[ActFont].Italic = false then
+ XItal := 0
+ else
+ XItal := 12;
+
+ if (Font.Blend) then
begin
- FWidth := Fonts[ActFont].Width[Ord(Letter)];
-
- W := FWidth * (H/30) * Fonts[ActFont].AspectW;
- //H := 30;
- OutTemp := Fonts[ActFont].Outline * (H/30) * Fonts[ActFont].AspectW;
-
- // set texture positions
- TexX := (ord(Letter) mod 16) * 1/16 + 1/32 - FWidth/1024 - Fonts[ActFont].Outline/1024;
- TexY := (ord(Letter) div 16) * 1/16 + 2/1024; // 2/1024
- TexR := (ord(Letter) mod 16) * 1/16 + 1/32 + FWidth/1024 + Fonts[ActFont].Outline/1024;
- TexB := (1 + ord(Letter) div 16) * 1/16 - 2/1024;
-
- TexTemp := TexX + Start * (TexR - TexX);
- TexR := TexX + Finish * (TexR - TexX);
- TexX := TexTemp;
-
- // set vector positions
- PL := X - OutTemp / 2 + OutTemp * Start;
- PT := Y;
- PR := PL + (W + OutTemp) * (Finish - Start);
- PB := PT + H;
- if Fonts[ActFont].Italic = false then
- XItal := 0
- else
- XItal := 12;
-
- glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glBindTexture(GL_TEXTURE_2D, TexNum);
- glBegin(GL_QUADS);
+ 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); // not tested with XItal
- glEnd;
- X := X + W * (Finish - Start);
- glDisable(GL_BLEND);
- glDisable(GL_TEXTURE_2D);
- end; // with
+ glEnd;
+
+ Tex.X := Tex.X + Tex.W * (Finish - Start);
+ glDisable(GL_TEXTURE_2D);
+ if (Font.Blend) then
+ glDisable(GL_BLEND);
end;
// Custom GL "Print" Routine
@@ -363,18 +380,6 @@ begin
if (Text = '') then // If There's No Text
Exit; // Do Nothing
-(*
- while (length(text) > 0) do
- begin
- // cut
- Letter := Text[0];
- Text := pchar(Copy(Text, 2, Length(Text)-1));
-
- // print
- glPrintLetter(Letter);
- end; // while
-*)
-
//Save the actual color and alpha (for reflection)
PTempColor:= @TempColor;
//I've read that glGetFloat is quite slow, but it seems that there is no alternative
@@ -384,7 +389,7 @@ begin
// letter in a string is a waste of CPU & Memory resources.
// Copy operations are quite memory intensive, and this simple
// code achieves the same result.
- for iPos := 0 to length( text ) - 1 do
+ for iPos := 0 to Length(text) - 1 do
begin
glPrintLetter( Text[iPos] );
end;
@@ -594,4 +599,9 @@ begin
Fonts[ActFont].ReflectionSpacing := Spacing;
end;
+procedure SetFontBlend(Enable: boolean);
+begin
+ Fonts[ActFont].Blend := Enable;
+end;
+
end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 10:49:02 +0000