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v2.0
Source/GLS.Texture.pas
3 254 строки
92 KB
GLScene
Updated v.2.0 for Delphi/C++Builder
09 авг 2020, 23:03
09 авг 2020, 23:03
0538f8f
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// // This unit is part of the GLScene Engine, http://glscene.org // unit GLS.Texture; (* Handles all texture stuff *) interface {$I GLScene.inc} uses Winapi.OpenGL, Winapi.OpenGLext, System.Classes, System.SysUtils, Vcl.Graphics, Vcl.Imaging.jpeg, Vcl.Imaging.pngimage, GLS.OpenGLTokens, GLS.VectorTypes, GLS.VectorGeometry, GLS.BaseClasses, GLS.Graphics, GLS.Context, GLS.State, GLS.Color, GLS.Coordinates, GLS.RenderContextInfo, GLS.PersistentClasses, GLS.PipelineTransformation, GLS.TextureFormat, GLS.ApplicationFileIO, GLS.Utils, GLS.Strings; const cDefaultNormalMapScale = 0.125; CmtPX = 0; CmtNX = 1; CmtPY = 2; CmtNY = 3; CmtPZ = 4; CmtNZ = 5; type TGLTextureMode = (tmDecal, tmModulate, tmBlend, tmReplace, tmAdd); TGLTextureWrap = (twBoth, twNone, twVertical, twHorizontal, twSeparate); TGLMinFilter = ( miNearest, miLinear, miNearestMipmapNearest, miLinearMipmapNearest, miNearestMipmapLinear, miLinearMipmapLinear ); TGLMagFilter = (maNearest, maLinear); (* Specifies how depth values should be treated during filtering and texture application *) TGLDepthTextureMode = (dtmLuminance, dtmIntensity, dtmAlpha); (* Specifies the depth comparison function. *) TGLDepthCompareFunc = TGLDepthFunction; (* Texture format for OpenGL (rendering) use. Internally, GLScene handles all "base" images as 32 Bits RGBA, but you can specify a generic format to reduce OpenGL texture memory use: *) TGLTextureFormat = ( tfDefault, tfRGB, // = tfRGB8 tfRGBA, // = tfRGBA8 tfRGB16, // = tfRGB5 tfRGBA16, // = tfRGBA4 tfAlpha, // = tfALPHA8 tfLuminance, // = tfLUMINANCE8 tfLuminanceAlpha, // = tfLUMINANCE8_ALPHA8 tfIntensity, // = tfINTENSITY8 tfNormalMap, // = tfRGB8 tfRGBAFloat16, // = tfRGBA_FLOAT16_ATI tfRGBAFloat32, // = tfRGBA_FLOAT32_ATI tfExtended); TGLTextureCompression = TGLInternalCompression; TGLTexture = class; IGLTextureNotifyAble = interface(IGLNotifyAble) ['{0D9DC0B0-ECE4-4513-A8A1-5AE7022C9426}'] procedure NotifyTexMapChange(Sender: TObject); end; TGLTextureNeededEvent = procedure(Sender: TObject; var textureFileName: string) of object; TGLTextureChange = (tcImage, tcParams); TGLTextureChanges = set of TGLTextureChange; (* Defines how and if Alpha channel is defined for a texture image. tiaDefault : uses the alpha channel in the image if any tiaAlphaFromIntensity : the alpha channel value is deduced from other RGB components intensity (the brighter, the more opaque) tiaSuperBlackTransparent : pixels with a RGB color of (0, 0, 0) are completely transparent, others are completely opaque tiaLuminance : the luminance value is calculated for each pixel and used for RGB and Alpha values tiaLuminanceSqrt : same as tiaLuminance but with an Sqrt(Luminance) tiaOpaque : alpha channel is uniformously set to 1.0 tiaTopLeftPointColorTransparent : points of the same color as the top left point of the bitmap are transparent, others are opaque. *) TGLTextureImageAlpha = ( tiaDefault, tiaAlphaFromIntensity, tiaSuperBlackTransparent, tiaLuminance, tiaLuminanceSqrt, tiaOpaque, tiaTopLeftPointColorTransparent, tiaInverseLuminance, tiaInverseLuminanceSqrt, tiaBottomRightPointColorTransparent ); (*Base class for texture image data. Basicly, subclasses are to be considered as different ways of getting a HBitmap (interfacing the actual source). SubClasses should be registered using RegisterGLTextureImageClass to allow proper persistence and editability in the IDE experts. *) TGLTextureImage = class(TGLUpdateAbleObject) private function GetResourceName: string; protected FOwnerTexture: TGLTexture; FOnTextureNeeded: TGLTextureNeededEvent; FResourceFile: string; class function IsSelfLoading: Boolean; virtual; procedure LoadTexture(AInternalFormat: TGLInternalFormat); virtual; function GetTextureTarget: TGLTextureTarget; virtual; function GetHeight: Integer; virtual; function GetWidth: Integer; virtual; function GetDepth: Integer; virtual; property OnTextureNeeded: TGLTextureNeededEvent read FOnTextureNeeded write FOnTextureNeeded; public constructor Create(AOwner: TPersistent); override; destructor Destroy; override; property OwnerTexture: TGLTexture read FOwnerTexture write FOwnerTexture; procedure NotifyChange(Sender: TObject); override; (* Save textureImage to file. This may not save a picture, but for instance, parameters, if the textureImage is a procedural texture. *) procedure SaveToFile(const fileName: string); virtual; (* Load textureImage from a file. This may not load a picture, but for instance, parameters, if the textureImage is a procedural texture. Subclasses should invoke inherited which will take care of the "OnTextureNeeded" stuff. *) procedure LoadFromFile(const fileName: string); virtual; (* Returns a user-friendly denomination for the class. This denomination is used for picking a texture image class in the IDE expert. *) class function FriendlyName: string; virtual; (* Returns a user-friendly description for the class. This denomination is used for helping the user when picking a texture image class in the IDE expert. If it's not overriden, takes its value from FriendlyName. *) class function FriendlyDescription: string; virtual; // Request reload/refresh of data upon next use. procedure Invalidate; virtual; (* Returns image's bitmap handle. If the actual image is not a windows bitmap (BMP), descendants should take care of properly converting to bitmap. *) function GetBitmap32: TGLImage; virtual; (* Request for unloading bitmapData, to free some memory. This one is invoked when GLScene no longer needs the Bitmap data it got through a call to GetHBitmap. Subclasses may ignore this call if the HBitmap was obtained at no particular memory cost. *) procedure ReleaseBitmap32; virtual; // AsBitmap : Returns the TextureImage as a TBitmap function AsBitmap: TBitmap; procedure AssignToBitmap(aBitmap: TBitmap); property Width: Integer read GetWidth; property Height: Integer read GetHeight; property Depth: Integer read GetDepth; {Native opengl texture target. } property NativeTextureTarget: TGLTextureTarget read GetTextureTarget; property ResourceName: string read GetResourceName; end; TGLTextureImageClass = class of TGLTextureImage; (* A texture image with no specified content, only a size. This texture image type is of use if the context of your texture is calculated at run-time (with a TGLMemoryViewer for instance). *) TGLBlankImage = class(TGLTextureImage) private procedure SetWidth(val: Integer); procedure SetHeight(val: Integer); procedure SetDepth(val: Integer); procedure SetCubeMap(const val: Boolean); procedure SetArray(const val: Boolean); protected fBitmap: TGLImage; fWidth, fHeight, fDepth: Integer; // Store a icolor format, because fBitmap is not always defined fColorFormat: Cardinal; // Blank Cube Map fCubeMap: Boolean; // Flag to interparate depth as layer fArray: Boolean; function GetWidth: Integer; override; function GetHeight: Integer; override; function GetDepth: Integer; override; function GetTextureTarget: TGLTextureTarget; override; public constructor Create(AOwner: TPersistent); override; destructor Destroy; override; procedure Assign(Source: TPersistent); override; function GetBitmap32: TGLImage; override; procedure ReleaseBitmap32; override; procedure SaveToFile(const fileName: string); override; procedure LoadFromFile(const fileName: string); override; class function FriendlyName: string; override; class function FriendlyDescription: string; override; published // Width, heigth and depth of the blank image (for memory allocation). property Width: Integer read GetWidth write SetWidth default 256; property Height: Integer read GetHeight write SetHeight default 256; property Depth: Integer read GetDepth write SetDepth default 0; property CubeMap: Boolean read fCubeMap write SetCubeMap default false; property TextureArray: Boolean read fArray write SetArray default false; property ColorFormat: Cardinal read fColorFormat write fColorFormat; end; // Base class for image data classes internally based on a TPicture. TGLPictureImage = class(TGLTextureImage) private FBitmap: TGLImage; FGLPicture: TPicture; FUpdateCounter: Integer; protected function GetHeight: Integer; override; function GetWidth: Integer; override; function GetDepth: Integer; override; function GetTextureTarget: TGLTextureTarget; override; function GetPicture: TPicture; procedure SetPicture(const aPicture: TPicture); procedure PictureChanged(Sender: TObject); public constructor Create(AOwner: TPersistent); override; destructor Destroy; override; procedure Assign(Source: TPersistent); override; (* Use this function if you are going to modify the Picture directly. Each invokation MUST be balanced by a call to EndUpdate. *) procedure BeginUpdate; // Ends a direct picture modification session. Follows a BeginUpdate. procedure EndUpdate; function GetBitmap32: TGLImage; override; procedure ReleaseBitmap32; override; // Holds the image content. property Picture: TPicture read GetPicture write SetPicture; end; (* Stores any image compatible with Delphi's TPicture mechanism. The picture's data is actually stored into the DFM, the original picture name or path is not remembered. It is similar in behaviour of TImage. Note that if original image is for instance JPEG format, only the JPEG data will be stored in the DFM (compact) *) TGLPersistentImage = class(TGLPictureImage) public constructor Create(AOwner: TPersistent); override; destructor Destroy; override; procedure SaveToFile(const fileName: string); override; procedure LoadFromFile(const fileName: string); override; class function FriendlyName: string; override; class function FriendlyDescription: string; override; property NativeTextureTarget; published property Picture; end; (* Uses a picture whose data is found in a file (only filename is stored). The image is unloaded after upload to OpenGL. *) TGLPicFileImage = class(TGLPictureImage) private FPictureFileName: string; FAlreadyWarnedAboutMissingFile: Boolean; FWidth: Integer; FHeight: Integer; protected procedure SetPictureFileName(const val: string); function GetWidth: Integer; override; function GetHeight: Integer; override; function GetDepth: Integer; override; public constructor Create(AOwner: TPersistent); override; destructor Destroy; override; procedure Assign(Source: TPersistent); override; // Only picture file name is saved procedure SaveToFile(const fileName: string); override; (* Load picture file name or use fileName as picture filename. The autodetection is based on the filelength and presence of zeros. *) procedure LoadFromFile(const fileName: string); override; class function FriendlyName: string; override; class function FriendlyDescription: string; override; property NativeTextureTarget; function GetBitmap32: TGLImage; override; procedure Invalidate; override; published // Filename of the picture to use. property PictureFileName: string read FPictureFileName write SetPictureFileName; end; TGLCubeMapTarget = Integer; (* A texture image used for specifying and stroing a cube map. Not unlike TGLPictureImage, but storing 6 of them instead of just one. Saving & loading as a whole currently not supported. *) TGLCubeMapImage = class(TGLTextureImage) private FImage: TGLImage; FUpdateCounter: Integer; FPicture: array[cmtPX..cmtNZ] of TPicture; protected function GetWidth: Integer; override; function GetHeight: Integer; override; function GetDepth: Integer; override; procedure SetPicture(index: TGLCubeMapTarget; const val: TPicture); function GetPicture(index: TGLCubeMapTarget): TPicture; function GetTextureTarget: TGLTextureTarget; override; procedure PictureChanged(Sender: TObject); public constructor Create(AOwner: TPersistent); override; destructor Destroy; override; procedure Assign(Source: TPersistent); override; function GetBitmap32: TGLImage; override; procedure ReleaseBitmap32; override; (* Use this function if you are going to modify the Picture directly. Each invokation MUST be balanced by a call to EndUpdate. *) procedure BeginUpdate; procedure EndUpdate; procedure SaveToFile(const fileName: string); override; procedure LoadFromFile(const fileName: string); override; class function FriendlyName: string; override; class function FriendlyDescription: string; override; property NativeTextureTarget; // Indexed access to the cube map's sub pictures. property Picture[index: TGLCubeMapTarget]: TPicture read GetPicture write SetPicture; published property PicturePX: TPicture index cmtPX read GetPicture write SetPicture; property PictureNX: TPicture index cmtNX read GetPicture write SetPicture; property PicturePY: TPicture index cmtPY read GetPicture write SetPicture; property PictureNY: TPicture index cmtNY read GetPicture write SetPicture; property PicturePZ: TPicture index cmtPZ read GetPicture write SetPicture; property PictureNZ: TPicture index cmtNZ read GetPicture write SetPicture; end; TGLTextureMappingMode = (tmmUser, tmmObjectLinear, tmmEyeLinear, tmmSphere, tmmCubeMapReflection, tmmCubeMapNormal, tmmCubeMapLight0, tmmCubeMapCamera); (* Defines basic texturing properties. You can control texture wrapping, smoothing/filtering and of course define the texture map (note that texturing is disabled by default). A built-in mechanism (through ImageAlpha) allows auto-generation of an Alpha channel for all bitmaps (see TGLTextureImageAlpha). *) TGLTexture = class(TGLUpdateAbleObject) private FTextureHandle: TGLTextureHandle; FSamplerHandle: TGLVirtualHandle; FTextureFormat: TGLInternalFormat; FTextureMode: TGLTextureMode; FTextureWrap: TGLTextureWrap; FMinFilter: TGLMinFilter; FMagFilter: TGLMagFilter; FDisabled: Boolean; FImage: TGLTextureImage; FImageAlpha: TGLTextureImageAlpha; FImageBrightness: Single; FImageGamma: Single; FMappingMode: TGLTextureMappingMode; FMapSCoordinates: TGLCoordinates4; FMapTCoordinates: TGLCoordinates4; FMapRCoordinates: TGLCoordinates4; FMapQCoordinates: TGLCoordinates4; FOnTextureNeeded: TGLTextureNeededEvent; FCompression: TGLTextureCompression; FRequiredMemorySize: Integer; FFilteringQuality: TGLTextureFilteringQuality; FTexWidth: Integer; FTexHeight: Integer; FTexDepth: Integer; FEnvColor: TGLColor; FBorderColor: TGLColor; FNormalMapScale: Single; FTextureWrapS: TGLSeparateTextureWrap; FTextureWrapT: TGLSeparateTextureWrap; FTextureWrapR: TGLSeparateTextureWrap; fTextureCompareMode: TGLTextureCompareMode; fTextureCompareFunc: TGLDepthCompareFunc; fDepthTextureMode: TGLDepthTextureMode; FKeepImageAfterTransfer: Boolean; protected procedure SetImage(AValue: TGLTextureImage); procedure SetImageAlpha(const val: TGLTextureImageAlpha); procedure SetImageBrightness(const val: Single); function StoreBrightness: Boolean; procedure SetImageGamma(const val: Single); function StoreGamma: Boolean; procedure SetMagFilter(AValue: TGLMagFilter); procedure SetMinFilter(AValue: TGLMinFilter); procedure SetTextureMode(AValue: TGLTextureMode); procedure SetTextureWrap(AValue: TGLTextureWrap); procedure SetTextureWrapS(AValue: TGLSeparateTextureWrap); procedure SetTextureWrapT(AValue: TGLSeparateTextureWrap); procedure SetTextureWrapR(AValue: TGLSeparateTextureWrap); function GetTextureFormat: TGLTextureFormat; procedure SetTextureFormat(const val: TGLTextureFormat); procedure SetTextureFormatEx(const val: TGLInternalFormat); function StoreTextureFormatEx: Boolean; procedure SetCompression(const val: TGLTextureCompression); procedure SetFilteringQuality(const val: TGLTextureFilteringQuality); procedure SetMappingMode(const val: TGLTextureMappingMode); function GetMappingSCoordinates: TGLCoordinates4; procedure SetMappingSCoordinates(const val: TGLCoordinates4); function StoreMappingSCoordinates: Boolean; function GetMappingTCoordinates: TGLCoordinates4; procedure SetMappingTCoordinates(const val: TGLCoordinates4); function StoreMappingTCoordinates: Boolean; function GetMappingRCoordinates: TGLCoordinates4; procedure SetMappingRCoordinates(const val: TGLCoordinates4); function StoreMappingRCoordinates: Boolean; function GetMappingQCoordinates: TGLCoordinates4; procedure SetMappingQCoordinates(const val: TGLCoordinates4); function StoreMappingQCoordinates: Boolean; procedure SetDisabled(AValue: Boolean); procedure SetEnabled(const val: Boolean); function GetEnabled: Boolean; inline; procedure SetEnvColor(const val: TGLColor); procedure SetBorderColor(const val: TGLColor); procedure SetNormalMapScale(const val: Single); procedure SetTextureCompareMode(const val: TGLTextureCompareMode); procedure SetTextureCompareFunc(const val: TGLDepthCompareFunc); procedure SetDepthTextureMode(const val: TGLDepthTextureMode); function StoreNormalMapScale: Boolean; function StoreImageClassName: Boolean; function GetHandle: Cardinal; // Load texture to OpenGL subsystem procedure PrepareImage(target: Cardinal); virtual; // Setup OpenGL texture parameters procedure PrepareParams(target: Cardinal); virtual; procedure DoOnTextureNeeded(Sender: TObject; var textureFileName: string); procedure OnSamplerAllocate(Sender: TGLVirtualHandle; var Handle: Cardinal); procedure OnSamplerDestroy(Sender: TGLVirtualHandle; var Handle: Cardinal); // Shows a special image that indicates an error procedure SetTextureErrorImage; public constructor Create(AOwner: TPersistent); override; destructor Destroy; override; property OnTextureNeeded: TGLTextureNeededEvent read FOnTextureNeeded write FOnTextureNeeded; procedure PrepareBuildList; procedure ApplyMappingMode; procedure UnApplyMappingMode; procedure Apply(var rci: TGLRenderContextInfo); procedure UnApply(var rci: TGLRenderContextInfo); // Applies to TEXTURE1 procedure ApplyAsTexture2(var rci: TGLRenderContextInfo; textureMatrix: PMatrix = nil); procedure UnApplyAsTexture2(var rci: TGLRenderContextInfo; reloadIdentityTextureMatrix: boolean); // N=1 for TEXTURE0, N=2 for TEXTURE1, etc. procedure ApplyAsTextureN(n: Integer; var rci: TGLRenderContextInfo; textureMatrix: PMatrix = nil); procedure UnApplyAsTextureN(n: Integer; var rci: TGLRenderContextInfo; reloadIdentityTextureMatrix: boolean); procedure Assign(Source: TPersistent); override; procedure NotifyChange(Sender: TObject); override; procedure NotifyImageChange; procedure NotifyParamsChange; procedure DestroyHandles; procedure SetImageClassName(const val: string); function GetImageClassName: string; (* Returns the OpenGL memory used by the texture. The compressed size is returned if, and only if texture compression if active and possible, and the texture has been allocated (Handle is defined), otherwise the estimated size (from TextureFormat specification) is returned. *) function TextureImageRequiredMemory: Integer; (* Allocates the texture handle if not already allocated. The texture is binded and parameters are setup, but no image data is initialized by this call - for expert use only. *) function AllocateHandle: Cardinal; function IsHandleAllocated: Boolean; // Returns OpenGL texture format corresponding to current options. function OpenGLTextureFormat: Integer; // Returns if of float data type function IsFloatType: Boolean; // Is the texture enabled?. Always equals to 'not Disabled'. property Enabled: Boolean read GetEnabled write SetEnabled; (* Handle to the OpenGL texture object. If the handle hasn't already been allocated, it will be allocated by this call (ie. do not use if no OpenGL context is active!) *) property Handle: Cardinal read GetHandle; property TextureHandle: TGLTextureHandle read FTextureHandle; (* Actual width, height and depth used for last texture specification binding. *) property TexWidth: Integer read FTexWidth; property TexHeight: Integer read FTexHeight; property TexDepth: Integer read FTexDepth; // Give texture rendering context published (* Image ClassName for enabling True polymorphism. This is ugly, but since the default streaming mechanism does a really bad job at storing polymorphic owned-object properties, and neither TFiler nor TPicture allow proper use of the built-in streaming, that's the only way I found to allow a user-extensible mechanism. *) property ImageClassName: string read GetImageClassName write SetImageClassName stored StoreImageClassName; // Image data for the texture. property Image: TGLTextureImage read FImage write SetImage; (* Automatic Image Alpha setting. Allows to control how and if the image's Alpha channel (transparency) is computed. *) property ImageAlpha: TGLTextureImageAlpha read FImageAlpha write SetImageAlpha default tiaDefault; (* Texture brightness correction. This correction is applied upon loading a TGLTextureImage, it's a simple saturating scaling applied to the RGB components of the 32 bits image, before it is passed to OpenGL, and before gamma correction (if any). *) property ImageBrightness: Single read FImageBrightness write SetImageBrightness stored StoreBrightness; (* Texture gamma correction. The gamma correction is applied upon loading a TGLTextureImage, applied to the RGB components of the 32 bits image, before it is passed to OpenGL, after brightness correction (if any). *) property ImageGamma: Single read FImageGamma write SetImageGamma stored StoreGamma; // Texture magnification filter. property MagFilter: TGLMagFilter read FMagFilter write SetMagFilter default maLinear; // Texture minification filter. property MinFilter: TGLMinFilter read FMinFilter write SetMinFilter default miLinearMipMapLinear; // Texture application mode. property TextureMode: TGLTextureMode read FTextureMode write SetTextureMode default tmDecal; // Wrapping mode for the texture. property TextureWrap: TGLTextureWrap read FTextureWrap write SetTextureWrap default twBoth; // Wrapping mode for the texture when TextureWrap=twSeparate. property TextureWrapS: TGLSeparateTextureWrap read FTextureWrapS write SetTextureWrapS default twRepeat; property TextureWrapT: TGLSeparateTextureWrap read FTextureWrapT write SetTextureWrapT default twRepeat; property TextureWrapR: TGLSeparateTextureWrap read FTextureWrapR write SetTextureWrapR default twRepeat; // Texture format for use by the renderer. See TGLTextureFormat for details property TextureFormat: TGLTextureFormat read GetTextureFormat write SetTextureFormat default tfDefault; property TextureFormatEx: TGLInternalFormat read FTextureFormat write SetTextureFormatEx stored StoreTextureFormatEx; (* Texture compression control. If True the compressed TextureFormat variant (the OpenGL ICD must support GL_ARB_texture_compression, or this option is ignored). *) property Compression: TGLTextureCompression read FCompression write SetCompression default tcDefault; (* Specifies texture filtering quality. You can choose between bilinear and trilinear filetring (anisotropic). The OpenGL ICD must support GL_EXT_texture_filter_anisotropic or this property is ignored. *) property FilteringQuality: TGLTextureFilteringQuality read FFilteringQuality write SetFilteringQuality default tfIsotropic; (* Texture coordinates mapping mode. This property controls automatic texture coordinates generation. *) property MappingMode: TGLTextureMappingMode read FMappingMode write SetMappingMode default tmmUser; (* Texture mapping coordinates mode for S, T, R and Q axis. This property stores the coordinates for automatic texture coordinates generation. *) property MappingSCoordinates: TGLCoordinates4 read GetMappingSCoordinates write SetMappingSCoordinates stored StoreMappingSCoordinates; property MappingTCoordinates: TGLCoordinates4 read GetMappingTCoordinates write SetMappingTCoordinates stored StoreMappingTCoordinates; property MappingRCoordinates: TGLCoordinates4 read GetMappingRCoordinates write SetMappingRCoordinates stored StoreMappingRCoordinates; property MappingQCoordinates: TGLCoordinates4 read GetMappingQCoordinates write SetMappingQCoordinates stored StoreMappingQCoordinates; // Texture Environment color. property EnvColor: TGLColor read FEnvColor write SetEnvColor; // Texture Border color. property BorderColor: TGLColor read FBorderColor write SetBorderColor; // If true, the texture is disabled (not used). property Disabled: Boolean read FDisabled write SetDisabled default True; (* Normal Map scaling. Only applies when TextureFormat is tfNormalMap, this property defines the scaling that is applied during normal map generation (ie. controls the intensity of the bumps). *) property NormalMapScale: Single read FNormalMapScale write SetNormalMapScale stored StoreNormalMapScale; property TextureCompareMode: TGLTextureCompareMode read fTextureCompareMode write SetTextureCompareMode default tcmNone; property TextureCompareFunc: TGLDepthCompareFunc read fTextureCompareFunc write SetTextureCompareFunc default cfLequal; property DepthTextureMode: TGLDepthTextureMode read fDepthTextureMode write SetDepthTextureMode default dtmLuminance; // Disable image release after transfering it to VGA. property KeepImageAfterTransfer: Boolean read FKeepImageAfterTransfer write FKeepImageAfterTransfer default False; end; TGLTextureExItem = class(TCollectionItem, IGLTextureNotifyAble) private FTexture: TGLTexture; FTextureIndex: Integer; FTextureOffset, FTextureScale: TGLCoordinates; FTextureMatrixIsIdentity: Boolean; FTextureMatrix: TMatrix; FApplied: Boolean; // Implementing IInterface function QueryInterface(const IID: TGUID; out Obj): HResult; stdcall; function _AddRef: Integer; stdcall; function _Release: Integer; stdcall; protected function GetDisplayName: string; override; function GetOwner: TPersistent; override; procedure SetTexture(const Value: TGLTexture); procedure SetTextureIndex(const Value: Integer); procedure SetTextureOffset(const Value: TGLCoordinates); procedure SetTextureScale(const Value: TGLCoordinates); procedure NotifyTexMapChange(Sender: TObject); procedure CalculateTextureMatrix; procedure OnNotifyChange(Sender: TObject); public constructor Create(ACollection: TCollection); override; destructor Destroy; override; procedure Assign(Source: TPersistent); override; procedure NotifyChange(Sender: TObject); procedure Apply(var rci: TGLRenderContextInfo); inline; procedure UnApply(var rci: TGLRenderContextInfo); inline; published property Texture: TGLTexture read FTexture write SetTexture; property TextureIndex: Integer read FTextureIndex write SetTextureIndex; property TextureOffset: TGLCoordinates read FTextureOffset write SetTextureOffset; property TextureScale: TGLCoordinates read FTextureScale write SetTextureScale; end; TGLTextureEx = class(TCollection) private FOwner: TGLUpdateAbleObject; protected procedure SetItems(index: Integer; const Value: TGLTextureExItem); function GetItems(index: Integer): TGLTextureExItem; inline; function GetOwner: TPersistent; override; public constructor Create(AOwner: TGLUpdateAbleObject); procedure NotifyChange(Sender: TObject); procedure Apply(var rci: TGLRenderContextInfo); procedure UnApply(var rci: TGLRenderContextInfo); function IsTextureEnabled(Index: Integer): Boolean; inline; function Add: TGLTextureExItem; property Items[index: Integer]: TGLTextureExItem read GetItems write SetItems; default; procedure Loaded; end; ETexture = class(Exception); EGLShaderException = class(Exception); // Register a TGLTextureImageClass (used for persistence and IDE purposes) procedure RegisterGLTextureImageClass(textureImageClass: TGLTextureImageClass); // Finds a registerer TGLTextureImageClass using its classname function FindGLTextureImageClass(const className: string): TGLTextureImageClass; // Finds a registerer TGLTextureImageClass using its FriendlyName function FindGLTextureImageClassByFriendlyName(const friendlyName: string): TGLTextureImageClass; // Defines a TStrings with the list of registered TGLTextureImageClass. procedure SetGLTextureImageClassesToStrings(aStrings: TStrings); (* Creates a TStrings with the list of registered TGLTextureImageClass. To be freed by caller. *) function GetGLTextureImageClassesAsStrings: TStrings; procedure RegisterTGraphicClassFileExtension(const extension: string; const aClass: TGraphicClass); function CreateGraphicFromFile(const fileName: string): TGraphic; //------------------------------------------------------------------------------ implementation //------------------------------------------------------------------------------ uses GLS.Scene, // TODO: remove dependancy on GLScene.pas unit (related to tmmCubeMapLight0) GLS.XOpenGL; const cTextureMode: array[tmDecal..tmAdd] of Cardinal = (GL_DECAL, GL_MODULATE, GL_BLEND, GL_REPLACE, GL_ADD); cOldTextureFormatToInternalFormat: array[tfRGB..tfRGBAFloat32] of TGLInternalFormat = ( tfRGB8, tfRGBA8, tfRGB5, tfRGBA4, tfALPHA8, tfLUMINANCE8, tfLUMINANCE8_ALPHA8, tfINTENSITY8, tfRGB8, tfRGBA_FLOAT16, tfRGBA_FLOAT32); var vGLTextureImageClasses: TList; vTGraphicFileExtension: array of string; vTGraphicClass: array of TGraphicClass; type TFriendlyImage = class(TGLBaseImage); function xgl(): TGLMultitextureCoordinator; inline; begin Result := TGLMultitextureCoordinator(vCurrentGLContext.MultitextureCoordinator); end; // Dummy methods for CPP // function TGLTextureImage.GetTextureTarget: TGLTextureTarget; begin Result := ttNoShape; end; function TGLTextureImage.GetHeight: Integer; begin Result := 0; end; function TGLTextureImage.GetWidth: Integer; begin Result := 0; end; function TGLTextureImage.GetDepth: Integer; begin Result := 0; end; procedure TGLTextureImage.SaveToFile(const FileName: String); begin end; class function TGLTextureImage.FriendlyName: String; begin Result := ''; end; function TGLTextureImage.GetBitmap32: TGLImage; begin Result := nil; end; procedure RegisterTGraphicClassFileExtension(const extension: string; const aClass: TGraphicClass); var n: Integer; begin n := Length(vTGraphicFileExtension); SetLength(vTGraphicFileExtension, n + 1); SetLength(vTGraphicClass, n + 1); vTGraphicFileExtension[n] := LowerCase(extension); vTGraphicClass[n] := aClass; end; function CreateGraphicFromFile(const fileName: string): TGraphic; var i: Integer; ext: string; fs: TStream; graphicClass: TGraphicClass; begin Result := nil; if FileStreamExists(fileName) then begin graphicClass := nil; ext := LowerCase(ExtractFileExt(fileName)); for i := 0 to High(vTGraphicFileExtension) do begin if vTGraphicFileExtension[i] = ext then begin graphicClass := TGraphicClass(vTGraphicClass[i]); Break; end; end; if graphicClass = nil then graphicClass := GraphicClassForExtension(ext); if graphicClass <> nil then begin Result := graphicClass.Create; try fs := TFileStream.Create(fileName, fmOpenRead); try Result.LoadFromStream(fs); finally fs.Free; end; except FreeAndNil(Result); raise; end; end; end; end; procedure RegisterGLTextureImageClass(textureImageClass: TGLTextureImageClass); begin if not Assigned(vGLTextureImageClasses) then vGLTextureImageClasses := TList.Create; vGLTextureImageClasses.Add(textureImageClass); end; function FindGLTextureImageClass(const className: string): TGLTextureImageClass; var i: Integer; tic: TGLTextureImageClass; begin Result := nil; if Assigned(vGLTextureImageClasses) then for i := 0 to vGLTextureImageClasses.Count - 1 do begin tic := TGLTextureImageClass(vGLTextureImageClasses[i]); if tic.ClassName = className then begin Result := tic; Break; end; end; end; function FindGLTextureImageClassByFriendlyName(const friendlyName: string): TGLTextureImageClass; var i: Integer; tic: TGLTextureImageClass; begin Result := nil; if Assigned(vGLTextureImageClasses) then for i := 0 to vGLTextureImageClasses.Count - 1 do begin tic := TGLTextureImageClass(vGLTextureImageClasses[i]); if tic.FriendlyName = friendlyName then begin Result := tic; Break; end; end; end; procedure SetGLTextureImageClassesToStrings(aStrings: TStrings); var i: Integer; tic: TGLTextureImageClass; begin with aStrings do begin BeginUpdate; Clear; if Assigned(vGLTextureImageClasses) then for i := 0 to vGLTextureImageClasses.Count - 1 do begin tic := TGLTextureImageClass(vGLTextureImageClasses[i]); AddObject(tic.FriendlyName, TObject(Pointer(tic))); end; EndUpdate; end; end; function GetGLTextureImageClassesAsStrings: TStrings; begin Result := TStringList.Create; SetGLTextureImageClassesToStrings(Result); end; // ------------------ // ------------------ TGLTextureImage ------------------ // ------------------ constructor TGLTextureImage.Create(AOwner: TPersistent); begin inherited; FOwnerTexture := (AOwner as TGLTexture); end; destructor TGLTextureImage.Destroy; begin inherited Destroy; end; class function TGLTextureImage.FriendlyDescription: string; begin Result := FriendlyName; end; procedure TGLTextureImage.Invalidate; begin ReleaseBitmap32; NotifyChange(Self); end; procedure TGLTextureImage.ReleaseBitmap32; begin // nothing here. end; // AsBitmap : Returns the TextureImage as a TBitmap // WARNING: This Creates a new bitmap. Remember to free it, to prevent leaks. // If possible, rather use AssignToBitmap. // function TGLTextureImage.AsBitmap: TBitmap; begin result := self.GetBitmap32.Create32BitsBitmap; end; procedure TGLTextureImage.AssignToBitmap(aBitmap: TBitmap); begin Self.GetBitmap32.AssignToBitmap(aBitmap); end; procedure TGLTextureImage.NotifyChange(Sender: TObject); begin if Assigned(FOwnerTexture) then begin FOwnerTexture.FTextureHandle.NotifyChangesOfData; FOwnerTexture.FSamplerHandle.NotifyChangesOfData; // Check for texture target change GetTextureTarget; FOwnerTexture.NotifyChange(Self); end; end; procedure TGLTextureImage.LoadFromFile(const fileName: string); var buf: string; begin if Assigned(FOnTextureNeeded) then begin buf := fileName; FOnTextureNeeded(Self, buf); end; end; function TGLTextureImage.GetResourceName: string; begin Result := FResourceFile; end; class function TGLTextureImage.IsSelfLoading: Boolean; begin Result := False; end; procedure TGLTextureImage.LoadTexture(AInternalFormat: TGLInternalFormat); begin end; // ------------------ // ------------------ TGLBlankImage ------------------ // ------------------ constructor TGLBlankImage.Create(AOwner: TPersistent); begin inherited; fWidth := 256; fHeight := 256; fDepth := 0; fColorFormat := GL_RGBA; end; destructor TGLBlankImage.Destroy; begin ReleaseBitmap32; inherited Destroy; end; procedure TGLBlankImage.Assign(Source: TPersistent); var img: TGLBlankImage; begin if Assigned(Source) then begin if (Source is TGLBlankImage) then begin img := Source as TGLBlankImage; FWidth := img.Width; FHeight := img.Height; FDepth := img.Depth; FCubeMap := img.fCubeMap; FArray := img.fArray; fColorFormat := img.ColorFormat; FResourceFile := img.ResourceName; Invalidate; end else GetBitmap32.Assign(Source); NotifyChange(Self); end else inherited; end; procedure TGLBlankImage.SetWidth(val: Integer); begin if val <> FWidth then begin FWidth := val; if FWidth < 1 then FWidth := 1; Invalidate; end; end; function TGLBlankImage.GetWidth: Integer; begin Result := FWidth; end; procedure TGLBlankImage.SetHeight(val: Integer); begin if val <> FHeight then begin FHeight := val; if FHeight < 1 then FHeight := 1; Invalidate; end; end; function TGLBlankImage.GetHeight: Integer; begin Result := FHeight; end; procedure TGLBlankImage.SetDepth(val: Integer); begin if val <> FDepth then begin FDepth := val; if FDepth < 0 then FDepth := 0; Invalidate; end; end; function TGLBlankImage.GetDepth: Integer; begin Result := fDepth; end; procedure TGLBlankImage.SetCubeMap(const val: Boolean); begin if val <> fCubeMap then begin fCubeMap := val; Invalidate; end; end; procedure TGLBlankImage.SetArray(const val: Boolean); begin if val <> fArray then begin fArray := val; Invalidate; end; end; function TGLBlankImage.GetBitmap32: TGLImage; begin if not Assigned(FBitmap) then begin fBitmap := TGLImage.Create; fBitmap.Width := FWidth; fBitmap.Height := FHeight; fBitmap.Depth := FDepth; fBitmap.CubeMap := FCubeMap; fBitmap.TextureArray := FArray; fBitmap.SetColorFormatDataType(FColorFormat, GL_UNSIGNED_BYTE); end; Result := FBitmap; end; procedure TGLBlankImage.ReleaseBitmap32; begin if Assigned(FBitmap) then begin FBitmap.Free; FBitmap := nil; end; end; procedure TGLBlankImage.SaveToFile(const fileName: string); begin SaveAnsiStringToFile(fileName, AnsiString( '[BlankImage]'#13#10'Width=' + IntToStr(Width) + #13#10'Height=' + IntToStr(Height) + #13#10'Depth=' + IntToStr(Depth))); end; procedure TGLBlankImage.LoadFromFile(const fileName: string); var sl: TStringList; buf, temp: string; begin buf := fileName; if Assigned(FOnTextureNeeded) then FOnTextureNeeded(Self, buf); if FileExists(buf) then begin sl := TStringList.Create; try sl.LoadFromFile(buf, TEncoding.ASCII); FWidth := StrToInt(sl.Values['Width']); FHeight := StrToInt(sl.Values['Height']); temp := sl.Values['Depth']; if Length(temp) > 0 then FDepth := StrToInt(temp) else FDepth := 1; finally sl.Free; end; end else begin Assert(False, Format(strFailedOpenFile, [fileName])); end; end; class function TGLBlankImage.FriendlyName: string; begin Result := 'Blank Image'; end; class function TGLBlankImage.FriendlyDescription: string; begin Result := 'Blank Image (Width x Height x Depth)'; end; function TGLBlankImage.GetTextureTarget: TGLTextureTarget; begin Result := ttTexture2D; // Choose a texture target if Assigned(fBitmap) then begin FWidth := fBitmap.Width; FHeight := fBitmap.Height; FDepth := fBitmap.Depth; FCubeMap := fBitmap.CubeMap; FArray := fBitmap.TextureArray; end; if FHeight = 1 then Result := ttTexture1D; if FCubeMap then Result := ttTextureCube; if FDepth > 0 then Result := ttTexture3D; if FArray then begin if FDepth < 2 then Result := ttTexture1DArray else Result := ttTexture2DArray; if FCubeMap then Result := ttTextureCubeArray; end; if Assigned(FOwnerTexture) then begin if ((FOwnerTexture.FTextureFormat >= tfFLOAT_R16) and (FOwnerTexture.FTextureFormat <= tfFLOAT_RGBA32)) then Result := ttTextureRect; end; end; // ------------------ // ------------------ TGLPictureImage ------------------ // ------------------ constructor TGLPictureImage.Create(AOwner: TPersistent); begin inherited; end; destructor TGLPictureImage.Destroy; begin ReleaseBitmap32; FGLPicture.Free; inherited Destroy; end; procedure TGLPictureImage.Assign(Source: TPersistent); var bmp: TBitmap; begin if Assigned(Source) then begin if (Source is TGLPersistentImage) then Picture.Assign(TGLPersistentImage(Source).Picture) else if (Source is TGraphic) then Picture.Assign(Source) else if (Source is TPicture) then Picture.Assign(Source) else if (Source is TGLImage) then begin bmp := TGLImage(Source).Create32BitsBitmap; Picture.Graphic := bmp; bmp.Free; FResourceFile := TGLImage(Source).ResourceName; end else inherited; end else inherited; end; procedure TGLPictureImage.BeginUpdate; begin Inc(FUpdateCounter); Picture.OnChange := nil; end; procedure TGLPictureImage.EndUpdate; begin Assert(FUpdateCounter > 0, ClassName + ': Unbalanced Begin/EndUpdate'); Dec(FUpdateCounter); Picture.OnChange := PictureChanged; if FUpdateCounter = 0 then PictureChanged(Picture); end; function TGLPictureImage.GetHeight: Integer; begin Result := Picture.Height; end; function TGLPictureImage.GetWidth: Integer; begin Result := Picture.Width; end; function TGLPictureImage.GetDepth: Integer; begin Result := 0; end; function TGLPictureImage.GetBitmap32: TGLImage; begin if not Assigned(FBitmap) then begin FBitmap := TGLImage.Create; // we need to deactivate OnChange, due to a "glitch" in some TGraphics, // for instance, TJPegImage triggers an OnChange when it is drawn... if Assigned(Picture.Graphic) then begin if Assigned(Picture.OnChange) then begin Picture.OnChange := nil; try FBitmap.Assign(Picture.Graphic); finally Picture.OnChange := PictureChanged; end; end else FBitmap.Assign(Picture.Graphic); end else FBitmap.SetErrorImage; end; Result := FBitmap; end; procedure TGLPictureImage.ReleaseBitmap32; begin if Assigned(FBitmap) then begin FBitmap.Free; FBitmap := nil; end; end; procedure TGLPictureImage.PictureChanged(Sender: TObject); begin Invalidate; end; function TGLPictureImage.GetPicture: TPicture; begin if not Assigned(FGLPicture) then begin FGLPicture := TPicture.Create; FGLPicture.OnChange := PictureChanged; end; Result := FGLPicture; end; procedure TGLPictureImage.SetPicture(const aPicture: TPicture); begin Picture.Assign(aPicture); end; function TGLPictureImage.GetTextureTarget: TGLTextureTarget; begin Result := ttTexture2D; end; // ------------------ // ------------------ TGLPersistentImage ------------------ // ------------------ constructor TGLPersistentImage.Create(AOwner: TPersistent); begin inherited; end; destructor TGLPersistentImage.Destroy; begin inherited Destroy; end; procedure TGLPersistentImage.SaveToFile(const fileName: string); begin Picture.SaveToFile(fileName); FResourceFile := fileName; end; procedure TGLPersistentImage.LoadFromFile(const fileName: string); var buf: string; gr: TGraphic; begin buf := fileName; FResourceFile := fileName; if Assigned(FOnTextureNeeded) then FOnTextureNeeded(Self, buf); if ApplicationFileIODefined then begin gr := CreateGraphicFromFile(buf); if Assigned(gr) then begin Picture.Graphic := gr; gr.Free; Exit; end; end else if FileExists(buf) then begin Picture.LoadFromFile(buf); Exit; end; Picture.Graphic := nil; raise ETexture.CreateFmt(strFailedOpenFile, [fileName]); end; class function TGLPersistentImage.FriendlyName: string; begin Result := 'Persistent Image'; end; class function TGLPersistentImage.FriendlyDescription: string; begin Result := 'Image data is stored in its original format with other form resources,' + 'ie. in the DFM at design-time, and embedded in the EXE at run-time.'; end; // ------------------ // ------------------ TGLPicFileImage ------------------ // ------------------ constructor TGLPicFileImage.Create(AOwner: TPersistent); begin inherited; end; destructor TGLPicFileImage.Destroy; begin inherited; end; procedure TGLPicFileImage.Assign(Source: TPersistent); begin if Source is TGLPicFileImage then begin FPictureFileName := TGLPicFileImage(Source).FPictureFileName; FResourceFile := TGLPicFileImage(Source).ResourceName; end else inherited; end; procedure TGLPicFileImage.SetPictureFileName(const val: string); begin if val <> FPictureFileName then begin FPictureFileName := val; FResourceFile := val; FAlreadyWarnedAboutMissingFile := False; Invalidate; end; end; procedure TGLPicFileImage.Invalidate; begin Picture.OnChange := nil; try Picture.Assign(nil); FBitmap := nil; finally Picture.OnChange := PictureChanged; end; inherited; end; function TGLPicFileImage.GetHeight: Integer; begin Result := FHeight; end; function TGLPicFileImage.GetWidth: Integer; begin Result := FWidth; end; function TGLPicFileImage.GetDepth: Integer; begin Result := 0; end; function TGLPicFileImage.GetBitmap32: TGLImage; var buf: string; gr: TGraphic; begin if (GetWidth <= 0) and (PictureFileName <> '') then begin Picture.OnChange := nil; try buf := PictureFileName; SetExeDirectory; if Assigned(FOnTextureNeeded) then FOnTextureNeeded(Self, buf); if FileStreamExists(buf) then begin gr := CreateGraphicFromFile(buf); Picture.Graphic := gr; gr.Free; end else begin Picture.Graphic := nil; if not FAlreadyWarnedAboutMissingFile then begin FAlreadyWarnedAboutMissingFile := True; GLOKMessageBox(Format(strFailedOpenFileFromCurrentDir, [PictureFileName, GetCurrentDir]),strError); end; end; Result := inherited GetBitmap32; FWidth := Result.Width; FHeight := Result.Height; Picture.Graphic := nil; finally Picture.OnChange := PictureChanged; end; end else Result := inherited GetBitmap32; end; procedure TGLPicFileImage.SaveToFile(const fileName: string); begin FResourceFile := fileName; SaveAnsiStringToFile(fileName, AnsiString(PictureFileName)); end; procedure TGLPicFileImage.LoadFromFile(const fileName: string); var buf: string; begin inherited; // attempt to autodetect if we are pointed to a file containing // a filename or directly to an image if SizeOfFile(fileName) < 512 then begin buf := string(LoadAnsiStringFromFile(fileName)); if Pos(#0, buf) > 0 then PictureFileName := fileName else PictureFileName := buf; end else PictureFileName := fileName; FResourceFile := FPictureFileName; end; class function TGLPicFileImage.FriendlyName: string; begin Result := 'PicFile Image'; end; class function TGLPicFileImage.FriendlyDescription: string; begin Result := 'Image data is retrieved from a file.'; end; // ------------------ // ------------------ TGLCubeMapImage ------------------ // ------------------ constructor TGLCubeMapImage.Create(AOwner: TPersistent); var i: TGLCubeMapTarget; begin inherited; for i := Low(FPicture) to High(FPicture) do begin FPicture[i] := TPicture.Create; FPicture[i].OnChange := PictureChanged; end; end; destructor TGLCubeMapImage.Destroy; var i: TGLCubeMapTarget; begin ReleaseBitmap32; for i := Low(FPicture) to High(FPicture) do FPicture[i].Free; inherited Destroy; end; procedure TGLCubeMapImage.Assign(Source: TPersistent); var i: TGLCubeMapTarget; begin if Assigned(Source) then begin if (Source is TGLCubeMapImage) then begin for i := Low(FPicture) to High(FPicture) do FPicture[i].Assign(TGLCubeMapImage(Source).FPicture[i]); Invalidate; end else inherited; end else inherited; end; function TGLCubeMapImage.GetWidth: Integer; begin Result := FPicture[cmtPX].Width; end; function TGLCubeMapImage.GetHeight: Integer; begin Result := FPicture[cmtPX].Height; end; function TGLCubeMapImage.GetDepth: Integer; begin Result := 0; end; function TGLCubeMapImage.GetBitmap32: TGLImage; var I: Integer; LImage: TGLImage; begin if Assigned(FImage) then FImage.Free; LImage := TGLImage.Create; LImage.VerticalReverseOnAssignFromBitmap := True; try for I := 0 to 5 do begin FPicture[TGLCubeMapTarget(I)].OnChange := nil; try LImage.Assign(FPicture[TGLCubeMapTarget(I)].Graphic); if not Assigned(FImage) then begin FImage := TGLImage.Create; FImage.Blank := True; FImage.Width := LImage.Width; FImage.Height := LImage.Height; FImage.SetColorFormatDataType(LImage.ColorFormat, LImage.DataType); FImage.CubeMap := True; FImage.Blank := False; end; Move(LImage.Data^, TFriendlyImage(FImage).GetLevelAddress(0, I)^, LImage.LevelSizeInByte[0]); finally FPicture[TGLCubeMapTarget(I)].OnChange := PictureChanged; end; end; finally LImage.Destroy; end; Result := FImage; end; procedure TGLCubeMapImage.ReleaseBitmap32; begin if Assigned(FImage) then begin FImage.Free; FImage := nil; end; end; procedure TGLCubeMapImage.BeginUpdate; var i: TGLCubeMapTarget; begin Inc(FUpdateCounter); for i := Low(FPicture) to High(FPicture) do FPicture[i].OnChange := nil; end; procedure TGLCubeMapImage.EndUpdate; var i: TGLCubeMapTarget; begin Assert(FUpdateCounter > 0, ClassName + ': Unbalanced Begin/EndUpdate'); Dec(FUpdateCounter); for i := Low(FPicture) to High(FPicture) do FPicture[i].OnChange := PictureChanged; if FUpdateCounter = 0 then PictureChanged(FPicture[cmtPX]); end; procedure TGLCubeMapImage.SaveToFile(const fileName: string); var fs: TFileStream; bmp: TBitmap; i: TGLCubeMapTarget; version: Word; begin fs := TFileStream.Create(fileName, fmCreate); bmp := TBitmap.Create; try version := $0100; fs.Write(version, 2); for i := Low(FPicture) to High(FPicture) do begin bmp.Assign(FPicture[i].Graphic); bmp.SaveToStream(fs); end; finally bmp.Free; fs.Free; end; end; procedure TGLCubeMapImage.LoadFromFile(const fileName: string); var fs: TFileStream; bmp: TBitmap; i: TGLCubeMapTarget; version: Word; begin fs := TFileStream.Create(fileName, fmOpenRead + fmShareDenyWrite); bmp := TBitmap.Create; try fs.Read(version, 2); Assert(version = $0100); for i := Low(FPicture) to High(FPicture) do begin bmp.LoadFromStream(fs); FPicture[i].Graphic := bmp; end; finally bmp.Free; fs.Free; end; end; class function TGLCubeMapImage.FriendlyName: string; begin Result := 'CubeMap Image'; end; class function TGLCubeMapImage.FriendlyDescription: string; begin Result := 'Image data is contain 6 pictures of cubemap faces.'; end; procedure TGLCubeMapImage.PictureChanged(Sender: TObject); begin Invalidate; end; function TGLCubeMapImage.GetTextureTarget: TGLTextureTarget; begin Result := ttTextureCube; end; procedure TGLCubeMapImage.SetPicture(index: TGLCubeMapTarget; const val: TPicture); begin FPicture[index].Assign(val); end; function TGLCubeMapImage.GetPicture(index: TGLCubeMapTarget): TPicture; begin Result := FPicture[index]; end; // ------------------ // ------------------ TGLTexture ------------------ // ------------------ constructor TGLTexture.Create(AOwner: TPersistent); begin inherited; FDisabled := True; FImage := TGLPersistentImage.Create(Self); FImage.OnTextureNeeded := DoOnTextureNeeded; FImageAlpha := tiaDefault; FImageBrightness := 1.0; FImageGamma := 1.0; FMagFilter := maLinear; FMinFilter := miLinearMipMapLinear; FFilteringQuality := tfIsotropic; FRequiredMemorySize := -1; FTextureHandle := TGLTextureHandle.Create; FSamplerHandle := TGLVirtualHandle.Create; FSamplerHandle.OnAllocate := OnSamplerAllocate; FSamplerHandle.OnDestroy := OnSamplerDestroy; FMappingMode := tmmUser; FEnvColor := TGLColor.CreateInitialized(Self, clrTransparent); FBorderColor := TGLColor.CreateInitialized(Self, clrTransparent); FNormalMapScale := cDefaultNormalMapScale; FTextureCompareMode := tcmNone; FTextureCompareFunc := cfLequal; FDepthTextureMode := dtmLuminance; TextureFormat := tfDefault; FCompression := tcDefault; FKeepImageAfterTransfer := False; end; destructor TGLTexture.Destroy; begin FEnvColor.Free; FBorderColor.Free; FMapSCoordinates.Free; FMapTCoordinates.Free; FMapRCoordinates.Free; FMapQCoordinates.Free; DestroyHandles; FTextureHandle.Free; FSamplerHandle.Free; FImage.Free; inherited Destroy; end; procedure TGLTexture.Assign(Source: TPersistent); begin if Assigned(Source) then begin if (Source is TGLTexture) then begin if Source <> Self then begin FImageAlpha := TGLTexture(Source).FImageAlpha; FTextureMode := TGLTexture(Source).FTextureMode; FTextureWrap := TGLTexture(Source).FTextureWrap; FTextureFormat := TGLTexture(Source).FTextureFormat; FCompression := TGLTexture(Source).FCompression; FMinFilter := TGLTexture(Source).FMinFilter; FMagFilter := TGLTexture(Source).FMagFilter; FMappingMode := TGLTexture(Source).FMappingMode; MappingSCoordinates.Assign(TGLTexture(Source).MappingSCoordinates); MappingTCoordinates.Assign(TGLTexture(Source).MappingTCoordinates); MappingRCoordinates.Assign(TGLTexture(Source).MappingRCoordinates); MappingQCoordinates.Assign(TGLTexture(Source).MappingQCoordinates); FDisabled := TGLTexture(Source).FDisabled; SetImage(TGLTexture(Source).FImage); FImageBrightness := TGLTexture(Source).FImageBrightness; FImageGamma := TGLTexture(Source).FImageGamma; FFilteringQuality := TGLTexture(Source).FFilteringQuality; FEnvColor.Assign(TGLTexture(Source).FEnvColor); FBorderColor.Assign(TGLTexture(Source).FBorderColor); FNormalMapScale := TGLTexture(Source).FNormalMapScale; // Probably don't need to assign these.... // FOnTextureNeeded := TGLTexture(Source).FImageGamma; // FRequiredMemorySize : Integer; // FTexWidth, FTexHeight : Integer; FTextureHandle.NotifyChangesOfData; FSamplerHandle.NotifyChangesOfData; end; end else if (Source is TGraphic) then Image.Assign(Source) else if (Source is TPicture) then Image.Assign(TPicture(Source).Graphic) else inherited Assign(Source); end else begin FDisabled := True; SetImage(nil); FTextureHandle.NotifyChangesOfData; FSamplerHandle.NotifyChangesOfData; end; end; procedure TGLTexture.NotifyChange(Sender: TObject); begin if Assigned(Owner) then begin if Owner is TGLTextureExItem then TGLTextureExItem(Owner).NotifyChange(Self); end; if Sender is TGLTextureImage then FTextureHandle.NotifyChangesOfData; inherited; end; procedure TGLTexture.NotifyImageChange; begin FTextureHandle.NotifyChangesOfData; NotifyChange(Self); end; procedure TGLTexture.NotifyParamsChange; begin FSamplerHandle.NotifyChangesOfData; NotifyChange(Self); end; procedure TGLTexture.SetImage(AValue: TGLTextureImage); begin if Assigned(aValue) then begin if FImage.ClassType <> AValue.ClassType then begin FImage.Free; FImage := TGLTextureImageClass(AValue.ClassType).Create(Self); FImage.OnTextureNeeded := DoOnTextureNeeded; end; FImage.Assign(AValue); end else begin FImage.Free; FImage := TGLPersistentImage.Create(Self); FImage.OnTextureNeeded := DoOnTextureNeeded; end; end; procedure TGLTexture.SetImageClassName(const val: string); var newImage: TGLTextureImage; newImageClass: TGLTextureImageClass; begin if val <> '' then if FImage.ClassName <> val then begin newImageClass := FindGLTextureImageClass(val); Assert(newImageClass <> nil, 'Make sure you include the unit for ' + val + ' in your uses clause'); if newImageClass = nil then exit; newImage := newImageClass.Create(Self); newImage.OnTextureNeeded := DoOnTextureNeeded; FImage.Free; FImage := newImage; end; end; function TGLTexture.GetImageClassName: string; begin Result := FImage.ClassName; end; function TGLTexture.TextureImageRequiredMemory: Integer; var w, h, e, levelSize: Integer; begin if FRequiredMemorySize < 0 then begin if IsCompressedFormat(fTextureFormat) then begin w := (Image.Width + 3) div 4; h := (Image.Height + 3) div 4; end else begin w := Image.Width; h := Image.Height; end; e := GetTextureElementSize(fTextureFormat); FRequiredMemorySize := w * h * e; if Image.Depth > 0 then FRequiredMemorySize := FRequiredMemorySize * Image.Depth; if not (MinFilter in [miNearest, miLinear]) then begin levelSize := FRequiredMemorySize; while e < levelSize do begin levelSize := levelSize div 4; FRequiredMemorySize := FRequiredMemorySize + levelSize; end; end; if Image.NativeTextureTarget = ttTextureCube then FRequiredMemorySize := FRequiredMemorySize * 6; end; Result := FRequiredMemorySize; end; procedure TGLTexture.SetImageAlpha(const val: TGLTextureImageAlpha); begin if FImageAlpha <> val then begin FImageAlpha := val; NotifyImageChange; end; end; procedure TGLTexture.SetImageBrightness(const val: Single); begin if FImageBrightness <> val then begin FImageBrightness := val; NotifyImageChange; end; end; function TGLTexture.StoreBrightness: Boolean; begin Result := (FImageBrightness <> 1.0); end; procedure TGLTexture.SetImageGamma(const val: Single); begin if FImageGamma <> val then begin FImageGamma := val; NotifyImageChange; end; end; function TGLTexture.StoreGamma: Boolean; begin Result := (FImageGamma <> 1.0); end; procedure TGLTexture.SetMagFilter(AValue: TGLMagFilter); begin if AValue <> FMagFilter then begin FMagFilter := AValue; NotifyParamsChange; end; end; procedure TGLTexture.SetMinFilter(AValue: TGLMinFilter); begin if AValue <> FMinFilter then begin FMinFilter := AValue; NotifyParamsChange; end; end; procedure TGLTexture.SetTextureMode(AValue: TGLTextureMode); begin if AValue <> FTextureMode then begin FTextureMode := AValue; NotifyParamsChange; end; end; procedure TGLTexture.SetDisabled(AValue: Boolean); var intf: IGLTextureNotifyAble; begin if AValue <> FDisabled then begin FDisabled := AValue; if Supports(Owner, IGLTextureNotifyAble, intf) then intf.NotifyTexMapChange(Self) else NotifyChange(Self); end; end; procedure TGLTexture.SetEnabled(const val: Boolean); begin Disabled := not val; end; function TGLTexture.GetEnabled: Boolean; begin Result := not Disabled; end; procedure TGLTexture.SetEnvColor(const val: TGLColor); begin FEnvColor.Assign(val); NotifyParamsChange; end; procedure TGLTexture.SetBorderColor(const val: TGLColor); begin FBorderColor.Assign(val); NotifyParamsChange; end; procedure TGLTexture.SetNormalMapScale(const val: Single); begin if val <> FNormalMapScale then begin FNormalMapScale := val; if TextureFormat = tfNormalMap then NotifyImageChange; end; end; function TGLTexture.StoreNormalMapScale: Boolean; begin Result := (FNormalMapScale <> cDefaultNormalMapScale); end; procedure TGLTexture.SetTextureWrap(AValue: TGLTextureWrap); begin if AValue <> FTextureWrap then begin FTextureWrap := AValue; NotifyParamsChange; end; end; procedure TGLTexture.SetTextureWrapS(AValue: TGLSeparateTextureWrap); begin if AValue <> FTextureWrapS then begin FTextureWrapS := AValue; NotifyParamsChange; end; end; procedure TGLTexture.SetTextureWrapT(AValue: TGLSeparateTextureWrap); begin if AValue <> FTextureWrapT then begin FTextureWrapT := AValue; NotifyParamsChange; end; end; procedure TGLTexture.SetTextureWrapR(AValue: TGLSeparateTextureWrap); begin if AValue <> FTextureWrapR then begin FTextureWrapR := AValue; NotifyParamsChange; end; end; function TGLTexture.GetTextureFormat: TGLTextureFormat; var i: TGLTextureFormat; begin if vDefaultTextureFormat = FTextureFormat then begin Result := tfDefault; Exit; end; for i := tfRGB to tfRGBAFloat32 do begin if cOldTextureFormatToInternalFormat[i] = FTextureFormat then begin Result := i; Exit; end; end; Result := tfExtended; end; procedure TGLTexture.SetTextureFormat(const val: TGLTextureFormat); begin if val = tfDefault then begin FTextureFormat := vDefaultTextureFormat; end else if val < tfExtended then begin FTextureFormat := cOldTextureFormatToInternalFormat[val]; end; end; procedure TGLTexture.SetTextureFormatEx(const val: TGLInternalFormat); begin if val <> FTextureFormat then begin FTextureFormat := val; NotifyImageChange; end; end; function TGLTexture.StoreTextureFormatEx: Boolean; begin Result := GetTextureFormat >= tfExtended; end; procedure TGLTexture.SetCompression(const val: TGLTextureCompression); begin if val <> FCompression then begin FCompression := val; NotifyParamsChange; end; end; procedure TGLTexture.SetFilteringQuality(const val: TGLTextureFilteringQuality); begin if val <> FFilteringQuality then begin FFilteringQuality := val; NotifyParamsChange; end; end; procedure TGLTexture.SetMappingMode(const val: TGLTextureMappingMode); var texMapChange: Boolean; intf: IGLTextureNotifyAble; begin if val <> FMappingMode then begin texMapChange := ((val = tmmUser) and (FMappingMode <> tmmUser)) or ((val = tmmUser) and (FMappingMode <> tmmUser)); FMappingMode := val; if texMapChange then begin // when switching between texGen modes and user mode, the geometry // must be rebuilt in whole (to specify/remove texCoord data!) if Supports(Owner, IGLTextureNotifyAble, intf) then intf.NotifyTexMapChange(Self); end else NotifyChange(Self); end; end; procedure TGLTexture.SetMappingSCoordinates(const val: TGLCoordinates4); begin MappingSCoordinates.Assign(val); end; function TGLTexture.GetMappingSCoordinates: TGLCoordinates4; begin if not Assigned(FMapSCoordinates) then FMapSCoordinates := TGLCoordinates4.CreateInitialized(Self, XHmgVector, csVector); Result := FMapSCoordinates; end; function TGLTexture.StoreMappingSCoordinates: Boolean; begin if Assigned(FMapSCoordinates) then Result := not VectorEquals(FMapSCoordinates.AsVector, XHmgVector) else Result := false; end; procedure TGLTexture.SetMappingTCoordinates(const val: TGLCoordinates4); begin MappingTCoordinates.Assign(val); end; function TGLTexture.GetMappingTCoordinates: TGLCoordinates4; begin if not Assigned(FMapTCoordinates) then FMapTCoordinates := TGLCoordinates4.CreateInitialized(Self, YHmgVector, csVector); Result := FMapTCoordinates; end; function TGLTexture.StoreMappingTCoordinates: Boolean; begin if Assigned(FMapTCoordinates) then Result := not VectorEquals(FMapTCoordinates.AsVector, YHmgVector) else Result := false; end; procedure TGLTexture.SetMappingRCoordinates(const val: TGLCoordinates4); begin MappingRCoordinates.Assign(val); end; function TGLTexture.GetMappingRCoordinates: TGLCoordinates4; begin if not Assigned(FMapRCoordinates) then FMapRCoordinates := TGLCoordinates4.CreateInitialized(Self, ZHmgVector, csVector); Result := FMapRCoordinates; end; function TGLTexture.StoreMappingRCoordinates: Boolean; begin if Assigned(FMapRCoordinates) then Result := not VectorEquals(FMapRCoordinates.AsVector, ZHmgVector) else Result := false; end; procedure TGLTexture.SetMappingQCoordinates(const val: TGLCoordinates4); begin MappingQCoordinates.Assign(val); end; function TGLTexture.GetMappingQCoordinates: TGLCoordinates4; begin if not Assigned(FMapQCoordinates) then FMapQCoordinates := TGLCoordinates4.CreateInitialized(Self, WHmgVector, csVector); Result := FMapQCoordinates; end; function TGLTexture.StoreMappingQCoordinates: Boolean; begin if Assigned(FMapQCoordinates) then Result := not VectorEquals(FMapQCoordinates.AsVector, WHmgVector) else Result := false; end; function TGLTexture.StoreImageClassName: Boolean; begin Result := (FImage.ClassName <> TGLPersistentImage.ClassName); end; procedure TGLTexture.SetTextureCompareMode(const val: TGLTextureCompareMode); begin if val <> fTextureCompareMode then begin fTextureCompareMode := val; NotifyParamsChange; end; end; procedure TGLTexture.SetTextureCompareFunc(const val: TGLDepthCompareFunc); begin if val <> fTextureCompareFunc then begin fTextureCompareFunc := val; NotifyParamsChange; end; end; procedure TGLTexture.SetDepthTextureMode(const val: TGLDepthTextureMode); begin if val <> fDepthTextureMode then begin fDepthTextureMode := val; NotifyParamsChange; end; end; procedure TGLTexture.PrepareBuildList; begin GetHandle; end; procedure TGLTexture.ApplyMappingMode; var R_Dim: Boolean; begin R_Dim := gl.ARB_texture_cube_map or gl.EXT_texture3D; case MappingMode of tmmUser: ; // nothing to do, but checked first (common case) tmmObjectLinear: begin gl.TexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR); gl.TexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR); gl.TexGenfv(GL_S, GL_OBJECT_PLANE, @MappingSCoordinates.DirectVector); gl.TexGenfv(GL_T, GL_OBJECT_PLANE, @MappingTCoordinates.DirectVector); gl.Enable(GL_TEXTURE_GEN_S); gl.Enable(GL_TEXTURE_GEN_T); if R_Dim then begin gl.TexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR); gl.TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR); gl.TexGenfv(GL_R, GL_OBJECT_PLANE, @MappingRCoordinates.DirectVector); gl.TexGenfv(GL_Q, GL_OBJECT_PLANE, @MappingQCoordinates.DirectVector); gl.Enable(GL_TEXTURE_GEN_R); gl.Enable(GL_TEXTURE_GEN_Q); end; end; tmmEyeLinear: begin gl.TexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR); gl.TexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR); // specify planes in eye space, not world space gl.MatrixMode(GL_MODELVIEW); gl.PushMatrix; gl.LoadIdentity; gl.TexGenfv(GL_S, GL_EYE_PLANE, @MappingSCoordinates.DirectVector); gl.TexGenfv(GL_T, GL_EYE_PLANE, @MappingTCoordinates.DirectVector); gl.Enable(GL_TEXTURE_GEN_S); gl.Enable(GL_TEXTURE_GEN_T); if R_Dim then begin gl.TexGenfv(GL_R, GL_EYE_PLANE, @MappingRCoordinates.DirectVector); gl.TexGenfv(GL_Q, GL_EYE_PLANE, @MappingQCoordinates.DirectVector); gl.Enable(GL_TEXTURE_GEN_R); gl.Enable(GL_TEXTURE_GEN_Q); end; gl.PopMatrix; end; tmmSphere: begin gl.TexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP); gl.TexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP); gl.Enable(GL_TEXTURE_GEN_S); gl.Enable(GL_TEXTURE_GEN_T); end; tmmCubeMapReflection, tmmCubeMapCamera: if gl.ARB_texture_cube_map then begin gl.TexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP); gl.TexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP); gl.TexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP); gl.Enable(GL_TEXTURE_GEN_S); gl.Enable(GL_TEXTURE_GEN_T); gl.Enable(GL_TEXTURE_GEN_R); end; tmmCubeMapNormal, tmmCubeMapLight0: if gl.ARB_texture_cube_map then begin gl.TexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_NORMAL_MAP); gl.TexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_NORMAL_MAP); gl.TexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_NORMAL_MAP); gl.Enable(GL_TEXTURE_GEN_S); gl.Enable(GL_TEXTURE_GEN_T); gl.Enable(GL_TEXTURE_GEN_R); end; else Assert(False); end; end; procedure TGLTexture.UnApplyMappingMode; begin if MappingMode <> tmmUser then begin gl.Disable(GL_TEXTURE_GEN_S); gl.Disable(GL_TEXTURE_GEN_T); if gl.EXT_texture3D or gl.ARB_texture_cube_map then begin gl.Disable(GL_TEXTURE_GEN_R); gl.Disable(GL_TEXTURE_GEN_Q); end; end; end; procedure TGLTexture.Apply(var rci: TGLRenderContextInfo); procedure SetCubeMapTextureMatrix; var m, mm: TMatrix; begin // compute model view matrix for proper viewing case MappingMode of tmmCubeMapReflection, tmmCubeMapNormal: begin m := rci.PipelineTransformation.ViewMatrix^; NormalizeMatrix(m); TransposeMatrix(m); rci.GLStates.SetGLTextureMatrix(m); end; tmmCubeMapLight0: begin with TGLScene(rci.scene).Lights do if Count > 0 then begin m := TGLLightSource(Items[0]).AbsoluteMatrix; NormalizeMatrix(m); mm := rci.PipelineTransformation.ViewMatrix^; NormalizeMatrix(mm); TransposeMatrix(mm); m := MatrixMultiply(m, mm); rci.GLStates.SetGLTextureMatrix(m); end; end; tmmCubeMapCamera: begin m.V[0] := VectorCrossProduct(rci.cameraUp, rci.cameraDirection); m.V[1] := VectorNegate(rci.cameraDirection); m.V[2] := rci.cameraUp; m.V[3] := WHmgPoint; mm := rci.PipelineTransformation.ViewMatrix^; NormalizeMatrix(mm); TransposeMatrix(mm); m := MatrixMultiply(m, mm); rci.GLStates.SetGLTextureMatrix(m); end; end; end; var H : Cardinal; begin // Multisample image do not work with FFP if (FTextureHandle.Target = ttTexture2DMultisample) or (FTextureHandle.Target = ttTexture2DMultisampleArray) then exit; H := Handle; if not Disabled and (H > 0) then begin with rci.GLStates do begin ActiveTexture := 0; TextureBinding[0, FTextureHandle.Target] := H; ActiveTextureEnabled[FTextureHandle.Target] := True; end; { if not rci.GLStates.ForwardContext then} begin if FTextureHandle.Target = ttTextureCube then SetCubeMapTextureMatrix; gl.TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, cTextureMode[FTextureMode]); gl.TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, FEnvColor.AsAddress); ApplyMappingMode; xgl.MapTexCoordToMain; end; end else {if not rci.GLStates.ForwardContext then} begin // default xgl.MapTexCoordToMain; end; end; procedure TGLTexture.UnApply(var rci: TGLRenderContextInfo); begin if not Disabled {and not rci.GLStates.ForwardContext} then begin // Multisample image do not work with FFP if FTextureHandle.Target in [ttNoShape, ttTexture2DMultisample, ttTexture2DMultisampleArray] then exit; with rci.GLStates do begin ActiveTexture := 0; ActiveTextureEnabled[FTextureHandle.Target] := False; if FTextureHandle.Target = ttTextureCube then ResetGLTextureMatrix; end; UnApplyMappingMode; end; end; procedure TGLTexture.ApplyAsTexture2(var rci: TGLRenderContextInfo; textureMatrix: PMatrix = nil); begin ApplyAsTextureN(2, rci, textureMatrix); end; procedure TGLTexture.UnApplyAsTexture2(var rci: TGLRenderContextInfo; reloadIdentityTextureMatrix: boolean); begin UnApplyAsTextureN(2, rci, reloadIdentityTextureMatrix); end; procedure TGLTexture.ApplyAsTextureN(n: Integer; var rci: TGLRenderContextInfo; textureMatrix: PMatrix = nil); var m: TMatrix; begin if not Disabled then begin // Multisample image do not work with FFP if (FTextureHandle.Target = ttTexture2DMultisample) or (FTextureHandle.Target = ttTexture2DMultisampleArray) then exit; with rci.GLStates do begin ActiveTexture := n - 1; TextureBinding[n - 1, FTextureHandle.Target] := Handle; ActiveTextureEnabled[FTextureHandle.Target] := True; if Assigned(textureMatrix) then SetGLTextureMatrix(textureMatrix^) else if FTextureHandle.Target = ttTextureCube then begin m := rci.PipelineTransformation.ModelViewMatrix^; NormalizeMatrix(m); TransposeMatrix(m); rci.GLStates.SetGLTextureMatrix(m); end; {if not ForwardContext then} begin gl.TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, cTextureMode[FTextureMode]); gl.TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, FEnvColor.AsAddress); ApplyMappingMode; ActiveTexture := 0; end; end; end; end; procedure TGLTexture.UnApplyAsTextureN(n: Integer; var rci: TGLRenderContextInfo; reloadIdentityTextureMatrix: boolean); begin { if not rci.GLStates.ForwardContext then} begin // Multisample image do not work with FFP if (FTextureHandle.Target = ttTexture2DMultisample) or (FTextureHandle.Target = ttTexture2DMultisampleArray) then exit; with rci.GLStates do begin ActiveTexture := n - 1; ActiveTextureEnabled[FTextureHandle.Target] := False; UnApplyMappingMode; if (FTextureHandle.Target = ttTextureCube) or reloadIdentityTextureMatrix then ResetGLTextureMatrix; ActiveTexture := 0; end; end; end; function TGLTexture.AllocateHandle: Cardinal; var vTarget: TGLTextureTarget; begin vTarget := Image.NativeTextureTarget; if (vTarget <> ttNoShape) and (FTextureHandle.Target <> vTarget) then FTextureHandle.DestroyHandle; Result := FTextureHandle.Handle; if Result = 0 then begin FTextureHandle.AllocateHandle; Result := FTextureHandle.Handle; end; if FTextureHandle.IsDataNeedUpdate then begin FTextureHandle.Target := vTarget; FSamplerHandle.NotifyChangesOfData; end; if FSamplerHandle.Handle = 0 then FSamplerHandle.AllocateHandle; // bind texture if (FTextureHandle.Target <> ttNoShape) and IsTargetSupported(FTextureHandle.Target) then begin if FSamplerHandle.IsDataNeedUpdate then begin with CurrentGLContext.GLStates do TextureBinding[ActiveTexture, FTextureHandle.Target] := Result; PrepareParams(DecodeTextureTarget(FTextureHandle.Target)); FSamplerHandle.NotifyDataUpdated; end; end else Result := 0; end; function TGLTexture.IsHandleAllocated: Boolean; begin Result := (FTextureHandle.Handle <> 0); end; function TGLTexture.GetHandle: Cardinal; var target: Cardinal; LBinding: array[TGLTextureTarget] of Cardinal; procedure StoreBindings; var t: TGLTextureTarget; begin with CurrentGLContext.GLStates do begin if TextureBinding[ActiveTexture, FTextureHandle.Target] = FTextureHandle.Handle then TextureBinding[ActiveTexture, FTextureHandle.Target] := 0; for t := Low(TGLTextureTarget) to High(TGLTextureTarget) do LBinding[t] := TextureBinding[ActiveTexture, t]; end; end; procedure RestoreBindings; var t: TGLTextureTarget; begin with CurrentGLContext.GLStates do for t := Low(TGLTextureTarget) to High(TGLTextureTarget) do TextureBinding[ActiveTexture, t] := LBinding[t]; end; begin with CurrentGLContext.GLStates do begin StoreBindings; try Result := AllocateHandle; if FTextureHandle.IsDataNeedUpdate then begin FTextureHandle.NotifyDataUpdated; // Check supporting target := DecodeTextureTarget(Image.NativeTextureTarget); if not IsTargetSupported(target) or not IsFormatSupported(TextureFormatEx) then begin SetTextureErrorImage; target := GL_TEXTURE_2D; end; // Load images if not gl.EXT_direct_state_access then TextureBinding[ActiveTexture, FTextureHandle.Target] := Result; PrepareImage(target); end; finally RestoreBindings; end; end; end; procedure TGLTexture.DestroyHandles; begin FTextureHandle.DestroyHandle; FSamplerHandle.DestroyHandle; FRequiredMemorySize := -1; end; function TGLTexture.IsFloatType: Boolean; begin Result := IsFloatFormat(TextureFormatEx); end; function TGLTexture.OpenGLTextureFormat: Integer; var texComp: TGLTextureCompression; begin if gl.ARB_texture_compression then begin if Compression = tcDefault then if vDefaultTextureCompression = tcDefault then texComp := tcNone else texComp := vDefaultTextureCompression else texComp := Compression; end else texComp := tcNone; if IsFloatType then texComp := tcNone; // no compression support for float_type if (texComp <> tcNone) and (TextureFormat <= tfNormalMap) then with CurrentGLContext.GLStates do begin case texComp of tcStandard: TextureCompressionHint := hintDontCare; tcHighQuality: TextureCompressionHint := hintNicest; tcHighSpeed: TextureCompressionHint := hintFastest; else Assert(False); end; Result := CompressedInternalFormatToOpenGL(TextureFormatEx); end else Result := InternalFormatToOpenGLFormat(TextureFormatEx); end; procedure TGLTexture.PrepareImage(target: Cardinal); var bitmap32: TGLImage; texComp: TGLTextureCompression; glFormat: Cardinal; begin if Image.IsSelfLoading then begin Image.LoadTexture(FTextureFormat); end else begin bitmap32 := Image.GetBitmap32; if (bitmap32 = nil) or bitmap32.IsEmpty then Exit; if TextureFormat = tfNormalMap then bitmap32.GrayScaleToNormalMap(NormalMapScale, TextureWrap in [twBoth, twHorizontal], TextureWrap in [twBoth, twVertical]); // prepare AlphaChannel case ImageAlpha of tiaDefault: ; // nothing to do tiaAlphaFromIntensity: bitmap32.SetAlphaFromIntensity; tiaSuperBlackTransparent: bitmap32.SetAlphaTransparentForColor($000000); tiaLuminance: bitmap32.SetAlphaFromIntensity; tiaLuminanceSqrt: begin bitmap32.SetAlphaFromIntensity; bitmap32.SqrtAlpha; end; tiaOpaque: bitmap32.SetAlphaToValue(255); tiaTopLeftPointColorTransparent: begin bitmap32.Narrow; bitmap32.SetAlphaTransparentForColor(bitmap32.Data^[0]); end; tiaInverseLuminance: begin bitmap32.SetAlphaFromIntensity; bitmap32.InvertAlpha; end; tiaInverseLuminanceSqrt: begin bitmap32.SetAlphaFromIntensity; bitmap32.SqrtAlpha; bitmap32.InvertAlpha; end; tiaBottomRightPointColorTransparent: begin bitmap32.Narrow; bitmap32.SetAlphaTransparentForColor(bitmap32.Data^[bitmap32.Width - 1]); end; else Assert(False); end; // apply brightness correction if FImageBrightness <> 1.0 then bitmap32.BrightnessCorrection(FImageBrightness); // apply gamma correction if FImageGamma <> 1.0 then bitmap32.GammaCorrection(FImageGamma); if gl.ARB_texture_compression and (TextureFormat <> tfExtended) then begin if Compression = tcDefault then if vDefaultTextureCompression = tcDefault then texComp := tcNone else texComp := vDefaultTextureCompression else texComp := Compression; if IsFloatType then texComp := tcNone; end else texComp := tcNone; if (texComp <> tcNone) and (TextureFormat <= tfNormalMap) then with CurrentGLContext.GLStates do begin case texComp of tcStandard: TextureCompressionHint := hintDontCare; tcHighQuality: TextureCompressionHint := hintNicest; tcHighSpeed: TextureCompressionHint := hintFastest; else Assert(False, strErrorEx + strUnknownType); end; glFormat := CompressedInternalFormatToOpenGL(FTextureFormat); end else glFormat := InternalFormatToOpenGLFormat(FTextureFormat); bitmap32.RegisterAsOpenGLTexture( FTextureHandle, not (FMinFilter in [miNearest, miLinear]), glFormat, FTexWidth, FTexHeight, FTexDepth); end; if gl.GetError <> GL_NO_ERROR then begin gl.ClearError; SetTextureErrorImage; end else begin FRequiredMemorySize := -1; TextureImageRequiredMemory; if not IsDesignTime and not FKeepImageAfterTransfer then Image.ReleaseBitmap32; end; end; procedure TGLTexture.PrepareParams(target: Cardinal); const cTextureSWrap: array [twBoth .. twHorizontal] of Cardinal = (GL_REPEAT, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, GL_REPEAT); cTextureTWrap: array [twBoth .. twHorizontal] of Cardinal = (GL_REPEAT, GL_CLAMP_TO_EDGE, GL_REPEAT, GL_CLAMP_TO_EDGE); cTextureRWrap: array [twBoth .. twHorizontal] of Cardinal = (GL_REPEAT, GL_CLAMP_TO_EDGE, GL_REPEAT, GL_CLAMP_TO_EDGE); cTextureSWrapOld: array [twBoth .. twHorizontal] of Cardinal = (GL_REPEAT, GL_CLAMP, GL_CLAMP, GL_REPEAT); cTextureTWrapOld: array [twBoth .. twHorizontal] of Cardinal = (GL_REPEAT, GL_CLAMP, GL_REPEAT, GL_CLAMP); cTextureMagFilter: array [maNearest .. maLinear] of Cardinal = (GL_NEAREST, GL_LINEAR); cTextureMinFilter: array [miNearest .. miLinearMipmapLinear] of Cardinal = (GL_NEAREST, GL_LINEAR, GL_NEAREST_MIPMAP_NEAREST, GL_LINEAR_MIPMAP_NEAREST, GL_NEAREST_MIPMAP_LINEAR, GL_LINEAR_MIPMAP_LINEAR); cFilteringQuality: array [tfIsotropic .. tfAnisotropic] of Integer = (1, 2); cSeparateTextureWrap: array [twRepeat .. twMirrorClampToBorder] of Cardinal = (GL_REPEAT, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_BORDER, GL_MIRRORED_REPEAT, GL_MIRROR_CLAMP_TO_EDGE_ATI, GL_MIRROR_CLAMP_TO_BORDER_EXT); cTextureCompareMode: array [tcmNone .. tcmCompareRtoTexture] of Cardinal = (GL_NONE, GL_COMPARE_R_TO_TEXTURE); cDepthTextureMode: array [dtmLuminance .. dtmAlpha] of Cardinal = (GL_LUMINANCE, GL_INTENSITY, GL_ALPHA); var R_Dim: Boolean; lMinFilter: TGLMinFilter; begin if (target = GL_TEXTURE_2D_MULTISAMPLE) or (target = GL_TEXTURE_2D_MULTISAMPLE_ARRAY) then Exit; R_Dim := gl.ARB_texture_cube_map or gl.EXT_texture3D; with CurrentGLContext.GLStates do begin UnpackAlignment := 1; UnpackRowLength := 0; UnpackSkipRows := 0; UnpackSkipPixels := 0; end; gl.TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, FBorderColor.AsAddress); if (gl.VERSION_1_2 or gl.EXT_texture_edge_clamp) then begin if FTextureWrap = twSeparate then begin gl.TexParameteri(target, GL_TEXTURE_WRAP_S, cSeparateTextureWrap[FTextureWrapS]); gl.TexParameteri(target, GL_TEXTURE_WRAP_T, cSeparateTextureWrap[FTextureWrapT]); if R_Dim then gl.TexParameteri(target, GL_TEXTURE_WRAP_R, cSeparateTextureWrap[FTextureWrapR]); end else begin gl.TexParameteri(target, GL_TEXTURE_WRAP_S, cTextureSWrap[FTextureWrap]); gl.TexParameteri(target, GL_TEXTURE_WRAP_T, cTextureTWrap[FTextureWrap]); if R_Dim then gl.TexParameteri(target, GL_TEXTURE_WRAP_R, cTextureRWrap[FTextureWrap]); end; end else begin gl.TexParameteri(target, GL_TEXTURE_WRAP_S, cTextureSWrapOld[FTextureWrap]); gl.TexParameteri(target, GL_TEXTURE_WRAP_T, cTextureTWrapOld[FTextureWrap]); end; lMinFilter := FMinFilter; // Down paramenter to rectangular texture supported if (target = GL_TEXTURE_RECTANGLE) or not (gl.EXT_texture_lod or gl.SGIS_texture_lod) then begin if lMinFilter in [miNearestMipmapNearest, miNearestMipmapLinear] then lMinFilter := miNearest; if FMinFilter in [miLinearMipmapNearest, miLinearMipmapLinear] then lMinFilter := miLinear; end; gl.TexParameteri(target, GL_TEXTURE_MIN_FILTER, cTextureMinFilter[lMinFilter]); gl.TexParameteri(target, GL_TEXTURE_MAG_FILTER, cTextureMagFilter[FMagFilter]); if gl.EXT_texture_filter_anisotropic then gl.TexParameteri(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, cFilteringQuality[FFilteringQuality]); if IsDepthFormat(fTextureFormat) then begin gl.TexParameteri(target, GL_TEXTURE_COMPARE_MODE, cTextureCompareMode[fTextureCompareMode]); gl.TexParameteri(target, GL_TEXTURE_COMPARE_FUNC, cGLComparisonFunctionToGLEnum[fTextureCompareFunc]); { if not FTextureHandle.RenderingContext.GLStates.ForwardContext then} gl.TexParameteri(target, GL_DEPTH_TEXTURE_MODE, cDepthTextureMode[fDepthTextureMode]); end; end; procedure TGLTexture.DoOnTextureNeeded(Sender: TObject; var textureFileName: string); begin if Assigned(FOnTextureNeeded) then FOnTextureNeeded(Sender, textureFileName); end; procedure TGLTexture.OnSamplerAllocate(Sender: TGLVirtualHandle; var Handle: Cardinal); begin Handle := 1; end; procedure TGLTexture.OnSamplerDestroy(Sender: TGLVirtualHandle; var Handle: Cardinal); begin Handle := 0; end; procedure TGLTexture.SetTextureErrorImage; var img: TGLImage; begin img := TGLImage.Create; img.SetErrorImage; ImageClassName := TGLBlankImage.className; TGLBlankImage(Image).Assign(img); img.Free; MagFilter := maNearest; MinFilter := miNearest; TextureWrap := twBoth; MappingMode := tmmUser; Compression := tcNone; AllocateHandle; end; // --------------- // --------------- TGLTextureExItem --------------- // --------------- constructor TGLTextureExItem.Create(ACollection: TCollection); begin inherited; FTexture := TGLTexture.Create(Self); FTextureOffset := TGLCoordinates.CreateInitialized(Self, NullHMGVector, csPoint); FTextureOffset.OnNotifyChange := OnNotifyChange; FTextureScale := TGLCoordinates.CreateInitialized(Self, XYZHmgVector, csPoint); FTextureScale.OnNotifyChange := OnNotifyChange; FTextureIndex := ID; FTextureMatrix := IdentityHMGMatrix; //DanB - hmmm, not very flexible code, assumes it's owned by a material, // that has a Texture property, but may need to re-implement it somehow { if ACollection is TGLTextureEx then if TGLTextureEx(ACollection).FOwner <> nil then FTexture.OnTextureNeeded := TGLTextureEx(ACollection).FOwner.Texture.OnTextureNeeded; } end; destructor TGLTextureExItem.Destroy; begin FTexture.Free; FTextureOffset.Free; FTextureScale.Free; inherited; end; function TGLTextureExItem.QueryInterface(const IID: TGUID; out Obj): HResult; stdcall; begin if GetInterface(IID, Obj) then Result := S_OK else Result := E_NOINTERFACE; end; function TGLTextureExItem._AddRef: Integer; stdcall; begin Result := -1; //ignore end; function TGLTextureExItem._Release: Integer; stdcall; begin Result := -1; //ignore end; procedure TGLTextureExItem.Assign(Source: TPersistent); begin if Source is TGLTextureExItem then begin Texture := TGLTextureExItem(Source).Texture; TextureIndex := TGLTextureExItem(Source).TextureIndex; TextureOffset := TGLTextureExItem(Source).TextureOffset; TextureScale := TGLTextureExItem(Source).TextureScale; NotifyChange(Self); end else inherited; end; procedure TGLTextureExItem.NotifyChange(Sender: TObject); begin if Assigned(Collection) then TGLTextureEx(Collection).NotifyChange(Self); end; procedure TGLTextureExItem.Apply(var rci: TGLRenderContextInfo); begin FApplied := False; if FTexture.Enabled then begin rci.GLStates.ActiveTexture := FTextureIndex; gl.MatrixMode(GL_TEXTURE); gl.PushMatrix; if FTextureMatrixIsIdentity then gl.LoadIdentity else gl.LoadMatrixf(@FTextureMatrix.V[0].X); gl.MatrixMode(GL_MODELVIEW); rci.GLStates.ActiveTexture := 0; if FTextureIndex = 0 then FTexture.Apply(rci) else if FTextureIndex = 1 then FTexture.ApplyAsTexture2(rci, nil) else if FTextureIndex >= 2 then FTexture.ApplyAsTextureN(FTextureIndex + 1, rci, nil); FApplied := True; end; end; procedure TGLTextureExItem.UnApply(var rci: TGLRenderContextInfo); begin if FApplied then begin if FTextureIndex = 0 then FTexture.UnApply(rci) else if FTextureIndex = 1 then FTexture.UnApplyAsTexture2(rci, false) else if FTextureIndex >= 2 then FTexture.UnApplyAsTextureN(FTextureIndex + 1, rci, false); rci.GLStates.ActiveTexture := FTextureIndex; gl.MatrixMode(GL_TEXTURE); gl.PopMatrix; gl.MatrixMode(GL_MODELVIEW); rci.GLStates.ActiveTexture := 0; FApplied := False; end; end; function TGLTextureExItem.GetDisplayName: string; begin Result := Format('Tex [%d]', [FTextureIndex]); end; function TGLTextureExItem.GetOwner: TPersistent; begin Result := Collection; end; procedure TGLTextureExItem.NotifyTexMapChange(Sender: TObject); var intf: IGLTextureNotifyAble; begin if Supports(TObject(TGLTextureEx(Collection).FOwner), IGLTextureNotifyAble, intf) then intf.NotifyTexMapChange(Sender); end; procedure TGLTextureExItem.SetTexture(const Value: TGLTexture); begin FTexture.Assign(Value); NotifyChange(Self); end; procedure TGLTextureExItem.SetTextureIndex(const Value: Integer); var temp: Integer; begin temp := Value; if temp < 0 then temp := 0; if temp <> FTextureIndex then begin FTextureIndex := temp; NotifyChange(Self); end; end; procedure TGLTextureExItem.SetTextureOffset(const Value: TGLCoordinates); begin FTextureOffset.Assign(Value); NotifyChange(Self); end; procedure TGLTextureExItem.SetTextureScale(const Value: TGLCoordinates); begin FTextureScale.Assign(Value); NotifyChange(Self); end; procedure TGLTextureExItem.CalculateTextureMatrix; begin if TextureOffset.Equals(NullHmgVector) and TextureScale.Equals(XYZHmgVector) then FTextureMatrixIsIdentity := True else begin FTextureMatrixIsIdentity := False; FTextureMatrix := CreateScaleAndTranslationMatrix(TextureScale.AsVector, TextureOffset.AsVector); end; NotifyChange(Self); end; procedure TGLTextureExItem.OnNotifyChange(Sender: TObject); begin CalculateTextureMatrix; end; // --------------- // --------------- TGLTextureEx --------------- // --------------- constructor TGLTextureEx.Create(AOwner: TGLUpdateAbleObject); begin inherited Create(TGLTextureExItem); FOwner := AOwner; end; procedure TGLTextureEx.NotifyChange(Sender: TObject); begin if Assigned(FOwner) then FOwner.NotifyChange(Self); end; procedure TGLTextureEx.Apply(var rci: TGLRenderContextInfo); var i, texUnits: Integer; units: Cardinal; begin if not gl.ARB_multitexture then exit; units := 0; gl.GetIntegerv(GL_MAX_TEXTURE_UNITS, @texUnits); for i := 0 to Count - 1 do begin if Items[i].TextureIndex < texUnits then begin Items[i].Apply(rci); if Items[i].FApplied then if (Items[i].TextureIndex > 0) and (Items[i].Texture.MappingMode = tmmUser) then units := units or (1 shl Items[i].TextureIndex); end; end; if units > 0 then xgl.MapTexCoordToArbitraryAdd(units); end; procedure TGLTextureEx.UnApply(var rci: TGLRenderContextInfo); var i: Integer; begin if not gl.ARB_multitexture then exit; for i := 0 to Count - 1 do Items[i].UnApply(rci); end; function TGLTextureEx.Add: TGLTextureExItem; begin Result := TGLTextureExItem(inherited Add); end; procedure TGLTextureEx.Loaded; var i: Integer; begin for i := 0 to Count - 1 do Items[i].CalculateTextureMatrix; end; function TGLTextureEx.GetOwner: TPersistent; begin Result := FOwner; end; procedure TGLTextureEx.SetItems(index: Integer; const Value: TGLTextureExItem); begin inherited SetItem(index, Value); end; function TGLTextureEx.GetItems(index: Integer): TGLTextureExItem; begin Result := TGLTextureExItem(inherited GetItem(index)); end; function TGLTextureEx.IsTextureEnabled(Index: Integer): Boolean; var i: Integer; begin Result := False; if Self = nil then Exit; for i := 0 to Count - 1 do if Items[i].TextureIndex = Index then Result := Result or Items[i].Texture.Enabled; end; // ------------------------------------------------------------------ initialization // ------------------------------------------------------------------ RegisterGLTextureImageClass(TGLBlankImage); RegisterGLTextureImageClass(TGLPersistentImage); RegisterGLTextureImageClass(TGLPicFileImage); RegisterGLTextureImageClass(TGLCubeMapImage); RegisterTGraphicClassFileExtension('.bmp', TBitmap); finalization vGLTextureImageClasses.Free; vGLTextureImageClasses := nil; end.