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authortobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2010-10-10 22:59:33 +0000
committertobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2010-10-10 22:59:33 +0000
commit35187604cef84864a908972d07361a5bd57e29ca (patch)
treedc95a8b1abeabd3a466729056ab8d37aaa6e72ea /src/base/UTexture.pas
parent58c1daf3692d4c5c534750a4fda97e087b0f0cbb (diff)
parent02bd10f0798829ab69d2028b988cb2a54eae292a (diff)
downloadusdx-35187604cef84864a908972d07361a5bd57e29ca.tar.gz
usdx-35187604cef84864a908972d07361a5bd57e29ca.tar.xz
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rename trunk to 1.1svn/1.1github/svn/1.1
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/1.1@2662 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to '')
-rw-r--r--src/base/UTexture.pas548
1 files changed, 548 insertions, 0 deletions
diff --git a/src/base/UTexture.pas b/src/base/UTexture.pas
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+{* UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *}
+
+unit UTexture;
+
+interface
+
+{$IFDEF FPC}
+ {$MODE Delphi}
+{$ENDIF}
+
+{$I switches.inc}
+
+uses
+ gl,
+ glu,
+ glext,
+ Classes,
+ SysUtils,
+ UCommon,
+ UPath,
+ SDL,
+ SDL_Image;
+
+type
+ PTexture = ^TTexture;
+ TTexture = record
+ TexNum: GLuint;
+ X: real;
+ Y: real;
+ Z: real;
+ W: real;
+ H: real;
+ ScaleW: real; // for dynamic scalling while leaving width constant
+ ScaleH: real; // for dynamic scalling while leaving height constant
+ Rot: real; // 0 - 2*pi
+ Int: real; // intensity
+ ColR: real;
+ ColG: real;
+ ColB: real;
+ TexW: real; // percentage of width to use [0..1]
+ TexH: real; // percentage of height to use [0..1]
+ TexX1: real;
+ TexY1: real;
+ TexX2: real;
+ TexY2: real;
+ Alpha: real;
+ Name: IPath; // experimental for handling cache images. maybe it's useful for dynamic skins
+ end;
+
+type
+ TTextureType = (
+ TEXTURE_TYPE_PLAIN, // Plain (alpha = 1)
+ TEXTURE_TYPE_TRANSPARENT, // Alpha is used
+ TEXTURE_TYPE_COLORIZED // Alpha is used; Hue of the HSV color-model will be replaced by a new value
+ );
+
+const
+ TextureTypeStr: array[TTextureType] of string = (
+ 'Plain',
+ 'Transparent',
+ 'Colorized'
+ );
+
+function TextureTypeToStr(TexType: TTextureType): string;
+function ParseTextureType(const TypeStr: string; Default: TTextureType): TTextureType;
+
+procedure AdjustPixelFormat(var TexSurface: PSDL_Surface; Typ: TTextureType);
+
+type
+ PTextureEntry = ^TTextureEntry;
+ TTextureEntry = record
+ Name: IPath;
+ Typ: TTextureType;
+ Color: cardinal;
+
+ // we use normal TTexture, it's easier to implement and if needed - we copy ready data
+ Texture: TTexture; // Full-size texture
+ TextureCache: TTexture; // Thumbnail texture
+ end;
+
+ TTextureDatabase = class
+ private
+ Texture: array of TTextureEntry;
+ public
+ procedure AddTexture(var Tex: TTexture; Typ: TTextureType; Color: cardinal; Cache: boolean);
+ function FindTexture(const Name: IPath; Typ: TTextureType; Color: cardinal): integer;
+ end;
+
+ TTextureUnit = class
+ private
+ TextureDatabase: TTextureDatabase;
+ public
+ Limit: integer;
+
+ procedure AddTexture(var Tex: TTexture; Typ: TTextureType; Cache: boolean = false); overload;
+ procedure AddTexture(var Tex: TTexture; Typ: TTextureType; Color: cardinal; Cache: boolean = false); overload;
+ function GetTexture(const Name: IPath; Typ: TTextureType; FromCache: boolean = false): TTexture; overload;
+ function GetTexture(const Name: IPath; Typ: TTextureType; Col: LongWord; FromCache: boolean = false): TTexture; overload;
+ function LoadTexture(FromRegistry: boolean; const Identifier: IPath; Typ: TTextureType; Col: LongWord): TTexture; overload;
+ function LoadTexture(const Identifier: IPath; Typ: TTextureType; Col: LongWord): TTexture; overload;
+ function LoadTexture(const Identifier: IPath): TTexture; overload;
+ function CreateTexture(Data: PChar; const Name: IPath; Width, Height: word; BitsPerPixel: byte): TTexture;
+ procedure UnloadTexture(const Name: IPath; Typ: TTextureType; FromCache: boolean); overload;
+ procedure UnloadTexture(const Name: IPath; Typ: TTextureType; Col: cardinal; FromCache: boolean); overload;
+ //procedure FlushTextureDatabase();
+
+ constructor Create;
+ destructor Destroy; override;
+ end;
+
+var
+ Texture: TTextureUnit;
+
+implementation
+
+uses
+ DateUtils,
+ StrUtils,
+ Math,
+ ULog,
+ UCovers,
+ UThemes,
+ UImage;
+
+procedure AdjustPixelFormat(var TexSurface: PSDL_Surface; Typ: TTextureType);
+var
+ TempSurface: PSDL_Surface;
+ NeededPixFmt: PSDL_Pixelformat;
+begin
+ if (Typ = TEXTURE_TYPE_PLAIN) then
+ NeededPixFmt := @PixelFmt_RGB
+ else if (Typ = TEXTURE_TYPE_TRANSPARENT) or
+ (Typ = TEXTURE_TYPE_COLORIZED) then
+ NeededPixFmt := @PixelFmt_RGBA
+ else
+ NeededPixFmt := @PixelFmt_RGB;
+
+ if not PixelformatEquals(TexSurface^.format, NeededPixFmt) then
+ begin
+ TempSurface := TexSurface;
+ TexSurface := SDL_ConvertSurface(TempSurface, NeededPixFmt, SDL_SWSURFACE);
+ SDL_FreeSurface(TempSurface);
+ end;
+end;
+
+{ TTextureDatabase }
+
+procedure TTextureDatabase.AddTexture(var Tex: TTexture; Typ: TTextureType; Color: cardinal; Cache: boolean);
+var
+ TextureIndex: integer;
+begin
+ TextureIndex := FindTexture(Tex.Name, Typ, Color);
+ if (TextureIndex = -1) then
+ begin
+ TextureIndex := Length(Texture);
+ SetLength(Texture, TextureIndex+1);
+
+ Texture[TextureIndex].Name := Tex.Name;
+ Texture[TextureIndex].Typ := Typ;
+ Texture[TextureIndex].Color := Color;
+ end;
+
+ if (Cache) then
+ Texture[TextureIndex].TextureCache := Tex
+ else
+ Texture[TextureIndex].Texture := Tex;
+end;
+
+function TTextureDatabase.FindTexture(const Name: IPath; Typ: TTextureType; Color: cardinal): integer;
+var
+ TextureIndex: integer;
+ CurrentTexture: PTextureEntry;
+begin
+ Result := -1;
+ for TextureIndex := 0 to High(Texture) do
+ begin
+ CurrentTexture := @Texture[TextureIndex];
+ if (CurrentTexture.Name.Equals(Name)) and
+ (CurrentTexture.Typ = Typ) then
+ begin
+ // colorized textures must match in their color too
+ if (CurrentTexture.Typ <> TEXTURE_TYPE_COLORIZED) or
+ (CurrentTexture.Color = Color) then
+ begin
+ Result := TextureIndex;
+ Break;
+ end;
+ end;
+ end;
+end;
+
+{ TTextureUnit }
+
+constructor TTextureUnit.Create;
+begin
+ inherited Create;
+ TextureDatabase := TTextureDatabase.Create;
+end;
+
+destructor TTextureUnit.Destroy;
+begin
+ TextureDatabase.Free;
+ inherited Destroy;
+end;
+
+procedure TTextureUnit.AddTexture(var Tex: TTexture; Typ: TTextureType; Cache: boolean);
+begin
+ TextureDatabase.AddTexture(Tex, Typ, 0, Cache);
+end;
+
+procedure TTextureUnit.AddTexture(var Tex: TTexture; Typ: TTextureType; Color: cardinal; Cache: boolean);
+begin
+ TextureDatabase.AddTexture(Tex, Typ, Color, Cache);
+end;
+
+function TTextureUnit.LoadTexture(FromRegistry: boolean; const Identifier: IPath; Typ: TTextureType; Col: LongWord): TTexture;
+begin
+ // FIXME: what is the FromRegistry parameter supposed to do?
+ Result := LoadTexture(Identifier, Typ, Col);
+end;
+
+function TTextureUnit.LoadTexture(const Identifier: IPath): TTexture;
+begin
+ Result := LoadTexture(Identifier, TEXTURE_TYPE_PLAIN, 0);
+end;
+
+function TTextureUnit.LoadTexture(const Identifier: IPath; Typ: TTextureType; Col: LongWord): TTexture;
+var
+ TexSurface: PSDL_Surface;
+ newWidth, newHeight: integer;
+ oldWidth, oldHeight: integer;
+ ActTex: GLuint;
+begin
+ // zero texture data
+ FillChar(Result, SizeOf(Result), 0);
+
+ // load texture data into memory
+ TexSurface := LoadImage(Identifier);
+ if not assigned(TexSurface) then
+ begin
+ Log.LogError('Could not load texture: "' + Identifier.ToNative +'" with type "'+ TextureTypeToStr(Typ) +'"',
+ 'TTextureUnit.LoadTexture');
+ Exit;
+ end;
+
+ // convert pixel format as needed
+ AdjustPixelFormat(TexSurface, Typ);
+
+ // adjust texture size (scale down, if necessary)
+ newWidth := TexSurface.W;
+ newHeight := TexSurface.H;
+
+ if (newWidth > Limit) then
+ newWidth := Limit;
+
+ if (newHeight > Limit) then
+ newHeight := Limit;
+
+ if (TexSurface.W > newWidth) or (TexSurface.H > newHeight) then
+ ScaleImage(TexSurface, newWidth, newHeight);
+
+ // now we might colorize the whole thing
+ if (Typ = TEXTURE_TYPE_COLORIZED) then
+ ColorizeImage(TexSurface, Col);
+
+ // save actual dimensions of our texture
+ oldWidth := newWidth;
+ oldHeight := newHeight;
+
+ // make texture dimensions be powers of 2
+ newWidth := Round(Power(2, Ceil(Log2(newWidth))));
+ newHeight := Round(Power(2, Ceil(Log2(newHeight))));
+ if (newHeight <> oldHeight) or (newWidth <> oldWidth) then
+ FitImage(TexSurface, newWidth, newHeight);
+
+ // at this point we have the image in memory...
+ // scaled so that dimensions are powers of 2
+ // and converted to either RGB or RGBA
+
+ // if we got a Texture of Type Plain, Transparent or Colorized,
+ // then we're done manipulating it
+ // and could now create our openGL texture from it
+
+ // prepare OpenGL texture
+ glGenTextures(1, @ActTex);
+
+ glBindTexture(GL_TEXTURE_2D, ActTex);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+ // load data into gl texture
+ if (Typ = TEXTURE_TYPE_TRANSPARENT) or
+ (Typ = TEXTURE_TYPE_COLORIZED) then
+ begin
+ {$IFDEF FPC_BIG_ENDIAN}
+ glTexImage2D(GL_TEXTURE_2D, 0, 4, newWidth, newHeight, 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, TexSurface.pixels);
+ {$ELSE}
+ glTexImage2D(GL_TEXTURE_2D, 0, 4, newWidth, newHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, TexSurface.pixels);
+ {$ENDIF}
+ end
+ else //if Typ = TEXTURE_TYPE_PLAIN then
+ begin
+ {$IFDEF FPC_BIG_ENDIAN}
+ glTexImage2D(GL_TEXTURE_2D, 0, 3, newWidth, newHeight, 0, GL_BGR, GL_UNSIGNED_BYTE, TexSurface.pixels);
+ {$ELSE}
+ glTexImage2D(GL_TEXTURE_2D, 0, 3, newWidth, newHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, TexSurface.pixels);
+ {$ENDIF}
+ end;
+
+ // setup texture struct
+ with Result do
+ begin
+ X := 0;
+ Y := 0;
+ Z := 0;
+ W := oldWidth;
+ H := oldHeight;
+ ScaleW := 1;
+ ScaleH := 1;
+ Rot := 0;
+ TexNum := ActTex;
+ TexW := oldWidth / newWidth;
+ TexH := oldHeight / newHeight;
+
+ Int := 1;
+ ColR := 1;
+ ColG := 1;
+ ColB := 1;
+ Alpha := 1;
+
+ // new test - default use whole texure, taking TexW and TexH as const and changing these
+ TexX1 := 0;
+ TexY1 := 0;
+ TexX2 := 1;
+ TexY2 := 1;
+
+ Name := Identifier;
+ end;
+
+ SDL_FreeSurface(TexSurface);
+end;
+
+function TTextureUnit.GetTexture(const Name: IPath; Typ: TTextureType; FromCache: boolean): TTexture;
+begin
+ Result := GetTexture(Name, Typ, 0, FromCache);
+end;
+
+function TTextureUnit.GetTexture(const Name: IPath; Typ: TTextureType; Col: LongWord; FromCache: boolean): TTexture;
+var
+ TextureIndex: integer;
+begin
+ if (Name.IsUnset) then
+ begin
+ // zero texture data
+ FillChar(Result, SizeOf(Result), 0);
+ Exit;
+ end;
+
+ if (FromCache) then
+ begin
+ // use texture
+ TextureIndex := TextureDatabase.FindTexture(Name, Typ, Col);
+ if (TextureIndex > -1) then
+ Result := TextureDatabase.Texture[TextureIndex].TextureCache;
+ Exit;
+ end;
+
+ // find texture entry in database
+ TextureIndex := TextureDatabase.FindTexture(Name, Typ, Col);
+ if (TextureIndex = -1) then
+ begin
+ // create texture entry in database
+ TextureIndex := Length(TextureDatabase.Texture);
+ SetLength(TextureDatabase.Texture, TextureIndex+1);
+
+ TextureDatabase.Texture[TextureIndex].Name := Name;
+ TextureDatabase.Texture[TextureIndex].Typ := Typ;
+ TextureDatabase.Texture[TextureIndex].Color := Col;
+
+ // inform database that no textures have been loaded into memory
+ TextureDatabase.Texture[TextureIndex].Texture.TexNum := 0;
+ TextureDatabase.Texture[TextureIndex].TextureCache.TexNum := 0;
+ end;
+
+ // load full texture
+ if (TextureDatabase.Texture[TextureIndex].Texture.TexNum = 0) then
+ TextureDatabase.Texture[TextureIndex].Texture := LoadTexture(false, Name, Typ, Col);
+
+ // use texture
+ Result := TextureDatabase.Texture[TextureIndex].Texture;
+end;
+
+function TTextureUnit.CreateTexture(Data: PChar; const Name: IPath; Width, Height: word; BitsPerPixel: byte): TTexture;
+var
+ //Error: integer;
+ ActTex: GLuint;
+begin
+ glGenTextures(1, @ActTex); // ActText = new texture number
+ glBindTexture(GL_TEXTURE_2D, ActTex);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+ {$IFDEF FPC_BIG_ENDIAN}
+ glTexImage2D(GL_TEXTURE_2D, 0, 3, Width, Height, 0, GL_BGR, GL_UNSIGNED_BYTE, Data);
+ {$ELSE}
+ glTexImage2D(GL_TEXTURE_2D, 0, 3, Width, Height, 0, GL_RGB, GL_UNSIGNED_BYTE, Data);
+ {$ENDIF}
+
+{
+ if Mipmapping then
+ begin
+ Error := gluBuild2DMipmaps(GL_TEXTURE_2D, 3, W, H, GL_RGB, GL_UNSIGNED_BYTE, @Data[0]);
+// FPC_BIG_ENDIAN Error := gluBuild2DMipmaps(GL_TEXTURE_2D, 3, W, H, GL_BGR, GL_UNSIGNED_BYTE, @Data[0]);
+ if Error > 0 then
+ Log.LogError('gluBuild2DMipmaps() failed', 'TTextureUnit.CreateTexture');
+ end;
+}
+
+ Result.X := 0;
+ Result.Y := 0;
+ Result.Z := 0;
+ Result.W := 0;
+ Result.H := 0;
+ Result.ScaleW := 1;
+ Result.ScaleH := 1;
+ Result.Rot := 0;
+ Result.TexNum := ActTex;
+ Result.TexW := 1;
+ Result.TexH := 1;
+
+ Result.Int := 1;
+ Result.ColR := 1;
+ Result.ColG := 1;
+ Result.ColB := 1;
+ Result.Alpha := 1;
+
+ // new test - default use whole texure, taking TexW and TexH as const and changing these
+ Result.TexX1 := 0;
+ Result.TexY1 := 0;
+ Result.TexX2 := 1;
+ Result.TexY2 := 1;
+
+ Result.Name := Name;
+end;
+
+procedure TTextureUnit.UnloadTexture(const Name: IPath; Typ: TTextureType; FromCache: boolean);
+begin
+ UnloadTexture(Name, Typ, 0, FromCache);
+end;
+
+procedure TTextureUnit.UnloadTexture(const Name: IPath; Typ: TTextureType; Col: cardinal; FromCache: boolean);
+var
+ T: integer;
+ TexNum: GLuint;
+begin
+ T := TextureDatabase.FindTexture(Name, Typ, Col);
+
+ if not FromCache then
+ begin
+ TexNum := TextureDatabase.Texture[T].Texture.TexNum;
+ if TexNum > 0 then
+ begin
+ glDeleteTextures(1, PGLuint(@TexNum));
+ TextureDatabase.Texture[T].Texture.TexNum := 0;
+ //Log.LogError('Unload texture no '+IntToStr(TexNum));
+ end;
+ end
+ else
+ begin
+ TexNum := TextureDatabase.Texture[T].TextureCache.TexNum;
+ if TexNum > 0 then
+ begin
+ glDeleteTextures(1, @TexNum);
+ TextureDatabase.Texture[T].TextureCache.TexNum := 0;
+ //Log.LogError('Unload texture cache no '+IntToStr(TexNum));
+ end;
+ end;
+end;
+
+(* This needs some work
+procedure TTextureUnit.FlushTextureDatabase();
+var
+ i: integer;
+ Tex: ^TTexture;
+begin
+ for i := 0 to High(TextureDatabase.Texture) do
+ begin
+ // only delete non-cached entries
+ if (TextureDatabase.Texture[i].Texture.TexNum > 0) then
+ begin
+ Tex := @TextureDatabase.Texture[i].Texture;
+ glDeleteTextures(1, PGLuint(Tex^.TexNum));
+ Tex^.TexNum := 0;
+ end;
+ end;
+end;
+*)
+
+function TextureTypeToStr(TexType: TTextureType): string;
+begin
+ Result := TextureTypeStr[TexType];
+end;
+
+function ParseTextureType(const TypeStr: string; Default: TTextureType): TTextureType;
+var
+ TextureType: TTextureType;
+ UpCaseStr: string;
+begin
+ UpCaseStr := UpperCase(TypeStr);
+ for TextureType := Low(TextureTypeStr) to High(TextureTypeStr) do
+ begin
+ if (UpCaseStr = UpperCase(TextureTypeStr[TextureType])) then
+ begin
+ Result := TextureType;
+ Exit;
+ end;
+ end;
+ Log.LogInfo('Unknown texture type: "' + TypeStr + '". Using default texture type "'
+ + TextureTypeToStr(Default) + '"', 'UTexture.ParseTextureType');
+ Result := Default;
+end;
+
+end.