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bgraopengltype.pas
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bgraopengltype.pas
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// SPDX-License-Identifier: LGPL-3.0-linking-exception
{ Basic types used with OpenGL }
unit BGRAOpenGLType;
{$mode objfpc}{$H+}
interface
uses
BGRAGraphics, BGRABitmap, BGRABitmapTypes,
FPimage, BGRAClasses, SysUtils, BGRATransform,
BGRASSE, BGRAMatrix3D;
type
TBGLTextureHandle = type Pointer;
TOpenGLResampleFilter = (orfBox,orfLinear);
TOpenGLBlendMode = (obmNormal, obmAdd, obmMultiply);
TWaitForGPUOption = (wfgQueueAllCommands, wfgFinishAllCommands);
TFaceCulling = BGRABitmapTypes.TFaceCulling;
TOpenGLPrimitive = (opPoints,opLineStrip,opLineLoop,opLines,
opTriangleStrip,opTriangleFan,opTriangles);
const
fcNone = BGRABitmapTypes.fcNone;
fcKeepCW = BGRABitmapTypes.fcKeepCW;
fcKeepCCW = BGRABitmapTypes.fcKeepCCW;
type
{ Interface for a font drawn on OpenGL canvas }
IBGLFont = interface
function GetClipped: boolean;
function GetPadding: TRectF;
function GetUseGradientColors: boolean;
function GetHorizontalAlign: TAlignment;
function GetJustify: boolean;
function GetScale: single;
function GetStepX: single;
function GetVerticalAlign: TTextLayout;
procedure SetClipped(AValue: boolean);
procedure SetPadding(AValue: TRectF);
procedure SetUseGradientColors(AValue: boolean);
procedure SetHorizontalAlign(AValue: TAlignment);
procedure SetJustify(AValue: boolean);
procedure SetScale(AValue: single);
procedure SetStepX(AValue: single);
procedure SetVerticalAlign(AValue: TTextLayout);
procedure TextOut(X, Y: Single; const Text : UTF8String); overload;
procedure TextOut(X, Y: Single; const Text : UTF8String; AColor: TBGRAPixel); overload;
procedure TextOut(X, Y: Single; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop); overload;
procedure TextOut(X, Y: Single; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AColor: TBGRAPixel); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AVertAlign: TTextLayout); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AVertAlign: TTextLayout); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
function TextWidth(const Text: UTF8String): single;
function TextHeight(const Text: UTF8String): single; overload;
function TextHeight(const Text: UTF8String; AWidth: single): single; overload;
procedure SetGradientColors(ATopLeft, ATopRight, ABottomRight, ABottomLeft: TBGRAPixel);
property Scale: single read GetScale write SetScale;
property StepX: single read GetStepX write SetStepX;
property Justify: boolean read GetJustify write SetJustify;
property Clipped: boolean read GetClipped write SetClipped;
property HorizontalAlign: TAlignment read GetHorizontalAlign write SetHorizontalAlign;
property VerticalAlign: TTextLayout read GetVerticalAlign write SetVerticalAlign;
property GradientColors: boolean read GetUseGradientColors write SetUseGradientColors;
property Padding: TRectF read GetPadding write SetPadding;
end;
{ Abstract class for a font drawn on OpenGL canvas }
TBGLCustomFont = class(TInterfacedObject, IBGLFont)
protected
FScale, FStepX: single;
FPadding: TRectF;
FFlags: LongWord;
FHorizontalAlign: TAlignment;
FVerticalAlign: TTextLayout;
FJustify: boolean;
procedure Init; virtual;
function LoadFromFile(AFilename: UTF8String): boolean; virtual; abstract;
procedure FreeMemoryOnDestroy; virtual;
function GetScale: single; virtual;
function GetStepX: single; virtual;
procedure SetScale(AValue: single); virtual;
procedure SetStepX(AValue: single); virtual;
function GetPadding: TRectF;
procedure SetPadding(AValue: TRectF); virtual;
function GetHorizontalAlign: TAlignment; virtual;
function GetJustify: boolean; virtual;
function GetVerticalAlign: TTextLayout; virtual;
procedure SetHorizontalAlign(AValue: TAlignment); virtual;
procedure SetJustify(AValue: boolean); virtual;
procedure SetVerticalAlign(AValue: TTextLayout); virtual;
function GetClipped: boolean; virtual; abstract;
function GetUseGradientColors: boolean; virtual; abstract;
procedure SetClipped(AValue: boolean); virtual; abstract;
procedure SetUseGradientColors(AValue: boolean); virtual; abstract;
procedure DoTextOut(X, Y: Single; const Text : UTF8String; AColor: TBGRAPixel); virtual; abstract;
procedure DoTextRect(X, Y, Width, Height: Single; const Text : UTF8String; AColor: TBGRAPixel); virtual; abstract;
function GetDefaultColor: TBGRAPixel; virtual;
procedure SwapRectIfNeeded(var ARect: TRectF); overload;
procedure SwapRectIfNeeded(var ARect: TRect); overload;
public
constructor Create(AFilename: UTF8String);
procedure FreeMemory; virtual;
destructor Destroy; override;
procedure TextOut(X, Y: Single; const Text : UTF8String); overload;
procedure TextOut(X, Y: Single; const Text : UTF8String; AColor: TBGRAPixel); overload;
procedure TextOut(X, Y: Single; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop); overload;
procedure TextOut(X, Y: Single; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AColor: TBGRAPixel); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AVertAlign: TTextLayout); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop); overload;
procedure TextRect(X, Y, Width, Height: Single; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRect; const Text : UTF8String); overload;
procedure TextRect(ARect: TRect; const Text : UTF8String; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRect; const Text : UTF8String; AVertAlign: TTextLayout); overload;
procedure TextRect(ARect: TRect; const Text : UTF8String; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRect; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop); overload;
procedure TextRect(ARect: TRect; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AVertAlign: TTextLayout); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop); overload;
procedure TextRect(ARect: TRectF; const Text : UTF8String; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
function TextWidth(const Text: UTF8String): single; virtual; abstract;
function TextHeight(const Text: UTF8String): single; overload; virtual; abstract;
function TextHeight(const Text: UTF8String; AWidth: single): single; overload; virtual; abstract;
procedure SetGradientColors(ATopLeft, ATopRight, ABottomRight, ABottomLeft: TBGRAPixel); virtual; abstract;
property Scale: single read GetScale write SetScale;
property StepX: single read GetStepX write SetStepX;
property Justify: boolean read GetJustify write SetJustify;
property Clipped: boolean read GetClipped write SetClipped;
property HorizontalAlign: TAlignment read GetHorizontalAlign write SetHorizontalAlign;
property VerticalAlign: TTextLayout read GetVerticalAlign write SetVerticalAlign;
property GradientColors: boolean read GetUseGradientColors write SetUseGradientColors;
property Padding: TRectF read GetPadding write SetPadding;
end;
{ Interface for a texture in OpenGL (stored in VRAM) }
IBGLTexture = interface ['{BF2FF051-EBC6-4102-8268-37A9D0297B92}']
function GetFlipX: IBGLTexture;
function GetFlipY: IBGLTexture;
function GetFrame(AIndex: integer): IBGLTexture;
function GetFrameCount: integer;
function GetFrameHeight: integer;
function GetFrameWidth: integer;
function GetHeight: integer;
function GetImageCenter: TPointF;
function GetMask: IBGLTexture;
function GetOpenGLBlendMode: TOpenGLBlendMode;
function GetOpenGLTexture: TBGLTextureHandle;
function GetResampleFilter: TOpenGLResampleFilter;
function GetUseGradientColors: boolean;
function GetWidth: integer;
procedure SetFrameSize(x,y: integer);
procedure SetImageCenter(const AValue: TPointF);
procedure SetOpenGLBlendMode(AValue: TOpenGLBlendMode);
procedure SetResampleFilter(AValue: TOpenGLResampleFilter);
procedure SetGradientColors(ATopLeft, ATopRight, ABottomRight, ABottomLeft: TBGRAPixel);
procedure SetUseGradientColors(AValue: boolean);
procedure Update(ARGBAData: PLongWord; AllocatedWidth, AllocatedHeight, ActualWidth,ActualHeight: integer; RGBAOrder: boolean = true);
procedure ToggleFlipX;
procedure ToggleFlipY;
procedure ToggleMask;
function FilterBlurMotion(ARadius: single; ABlurType: TRadialBlurType; ADirection: TPointF): IBGLTexture;
function FilterBlurRadial(ARadius: single; ABlurType: TRadialBlurType): IBGLTexture;
procedure SetFrame(AIndex: integer);
procedure FreeMemory;
procedure Bind(ATextureNumber: integer);
procedure Draw(x,y: single; AAlpha: byte = 255); overload;
procedure Draw(x,y: single; AColor: TBGRAPixel); overload;
procedure Draw(x,y: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop; AAlpha: byte = 255); overload;
procedure Draw(x,y: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure StretchDraw(x,y,w,h: single; AAlpha: byte = 255); overload;
procedure StretchDraw(x,y,w,h: single; AColor: TBGRAPixel); overload;
procedure StretchDraw(x,y,w,h: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop; AAlpha: byte = 255); overload;
procedure StretchDraw(x,y,w,h: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure DrawAngle(x,y,angleDeg: single; const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AAlpha: byte = 255); overload;
procedure DrawAngle(x,y,angleDeg: single; const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AColor: TBGRAPixel); overload;
procedure DrawAngle(x,y,angleDeg: single; AAlpha: byte = 255); overload;
procedure DrawAngle(x,y,angleDeg: single; AColor: TBGRAPixel); overload;
procedure DrawAngle(x,y,angleDeg: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop; AAlpha: byte = 255); overload;
procedure DrawAngle(x,y,angleDeg: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AAlpha: byte = 255); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AColor: TBGRAPixel); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; AAlpha: byte = 255); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; AColor: TBGRAPixel); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop; AAlpha: byte = 255); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure DrawAffine(const Origin, HAxis, VAxis: TPointF; AAlpha: byte = 255); overload;
procedure DrawAffine(const Origin, HAxis, VAxis: TPointF; AColor: TBGRAPixel); overload;
procedure DrawAffine(x,y: single; const AMatrix: TAffineMatrix; AAlpha: byte = 255); overload;
procedure DrawAffine(x,y: single; const AMatrix: TAffineMatrix; AColor: TBGRAPixel); overload;
procedure DrawTriangle(const APoints: array of TPointF; const ATexCoords: array of TPointF); overload;
procedure DrawTriangle(const APoints: array of TPointF; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawTriangle(const APoints: array of TPointF; const APointsZ: array of Single; const ATexCoords: array of TPointF); overload;
procedure DrawTriangle(const APoints: array of TPointF; const APointsZ: array of Single; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawTriangle(const APoints3D: array of TPoint3D_128; const ATexCoords: array of TPointF); overload;
procedure DrawTriangle(const APoints3D: array of TPoint3D_128; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawTriangle(const APoints3D: array of TPoint3D_128; const ANormals3D: array of TPoint3D_128; const ATexCoords: array of TPointF); overload;
procedure DrawTriangle(const APoints3D: array of TPoint3D_128; const ANormals3D: array of TPoint3D_128; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawQuad(const APoints: array of TPointF; const ATexCoords: array of TPointF); overload;
procedure DrawQuad(const APoints: array of TPointF; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawQuad(const APoints: array of TPointF; const APointsZ: array of Single; const ATexCoords: array of TPointF); overload;
procedure DrawQuad(const APoints: array of TPointF; const APointsZ: array of Single; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawQuad(const APoints3D: array of TPoint3D_128; const ATexCoords: array of TPointF); overload;
procedure DrawQuad(const APoints3D: array of TPoint3D_128; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawQuad(const APoints3D: array of TPoint3D_128; const ANormals3D: array of TPoint3D_128; const ATexCoords: array of TPointF); overload;
procedure DrawQuad(const APoints3D: array of TPoint3D_128; const ANormals3D: array of TPoint3D_128; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
property Width: integer read GetWidth;
property Height: integer read GetHeight;
property FrameCount: integer read GetFrameCount;
property Frame[AIndex: integer]: IBGLTexture read GetFrame;
property FrameWidth: integer read GetFrameWidth;
property FrameHeight: integer read GetFrameHeight;
property FlipX: IBGLTexture read GetFlipX;
property FlipY: IBGLTexture read GetFlipY;
property Mask: IBGLTexture read GetMask;
property Handle: TBGLTextureHandle read GetOpenGLTexture;
property ImageCenter: TPointF read GetImageCenter write SetImageCenter;
property ResampleFilter: TOpenGLResampleFilter read GetResampleFilter write SetResampleFilter;
property BlendMode: TOpenGLBlendMode read GetOpenGLBlendMode write SetOpenGLBlendMode;
property GradientColors: boolean read GetUseGradientColors write SetUseGradientColors;
end;
{ Abstract RGBA bitmap that can be used with OpenGL by converting it into a texture }
TBGLCustomBitmap = class(TBGRABitmap)
protected
FActualWidth,FActualHeight,
FAllocatedWidth,FAllocatedHeight: integer;
FTextureInvalidated: boolean;
FActualRect: TRect;
FTexture: IBGLTexture;
procedure Init; override;
function GetTexture: IBGLTexture; virtual;
function GetOpenGLMaxTexSize: integer; virtual; abstract;
procedure NotifySizeTooBigForOpenGL; virtual;
procedure NotifyOpenGLContextNotCreatedYet; virtual;
function GetTextureGL: IUnknown; override;
procedure SwapRedBlueWithoutInvalidate(ARect: TRect);
procedure SetClipRect(const AValue: TRect); override;
public
procedure InvalidateBitmap; override;
procedure Fill(const c: TBGRAPixel); override;
procedure NoClip; override;
destructor Destroy; override;
procedure SwapRedBlue; overload; override;
function Resample(newWidth, newHeight: integer; mode: TResampleMode=rmFineResample; ACopyProperties: Boolean=False): TBGLCustomBitmap; override;
procedure ApplyGlobalOpacity(alpha: byte); overload; override;
procedure ReplaceColor(before, after: TColor); overload; override;
procedure ReplaceColor(const ABefore, AAfter: TBGRAPixel); overload; override;
procedure ReplaceTransparent(const AAfter: TBGRAPixel); overload; override;
procedure SetSize(AWidth, AHeight: integer); override;
property Width: integer read FActualWidth;
property Height: integer read FActualHeight;
property AllocatedWidth: integer read FAllocatedWidth;
property AllocatedHeight: integer read FAllocatedHeight;
function MakeTextureAndFree: IBGLTexture;
property Texture: IBGLTexture read GetTexture;
property MaxTextureSize: integer read GetOpenGLMaxTexSize;
end;
{ Abstract class for a texture in OpenGL (stored in VRAM) }
TBGLCustomTexture = class(TInterfacedObject, IBGLTexture)
private
function GetFlipX: IBGLTexture;
function GetFlipY: IBGLTexture;
function GetFrame(AIndex: integer): IBGLTexture;
function GetFrameCount: integer;
function GetFrameHeight: integer;
function GetFrameWidth: integer;
function GetHeight: integer;
function GetMask: IBGLTexture;
function GetOpenGLBlendMode: TOpenGLBlendMode;
function GetOpenGLTexture: TBGLTextureHandle;
function GetWidth: integer;
function GetImageCenter: TPointF;
procedure SetImageCenter(const AValue: TPointF);
function GetResampleFilter: TOpenGLResampleFilter;
procedure SetOpenGLBlendMode(AValue: TOpenGLBlendMode);
procedure SetResampleFilter(AValue: TOpenGLResampleFilter);
protected
FOpenGLTexture: TBGLTextureHandle;
FOpenGLTextureOwned: boolean;
FResampleFilter: TOpenGLResampleFilter;
FWidth,FHeight: integer;
FImageCenter: TPointF;
FFrame: integer;
FFrameWidth,FFrameHeight: integer;
FIsMask: boolean;
FGradTopLeft, FGradTopRight, FGradBottomRight, FGradBottomLeft: TBGRAPixel;
FUseGradientColor: boolean;
FBlendMode: TOpenGLBlendMode;
function GetOpenGLMaxTexSize: integer; virtual; abstract;
function CreateOpenGLTexture(ARGBAData: PLongWord; AAllocatedWidth, AAllocatedHeight, AActualWidth, AActualHeight: integer; RGBAOrder: boolean): TBGLTextureHandle; virtual; abstract;
procedure UpdateOpenGLTexture(ATexture: TBGLTextureHandle; ARGBAData: PLongWord; AAllocatedWidth, AAllocatedHeight, AActualWidth,AActualHeight: integer; RGBAOrder: boolean); virtual; abstract;
class function SupportsBGRAOrder: boolean; virtual;
procedure SetOpenGLTextureSize(ATexture: TBGLTextureHandle; AAllocatedWidth, AAllocatedHeight, AActualWidth, AActualHeight: integer); virtual; abstract;
procedure ComputeOpenGLFramesCoord(ATexture: TBGLTextureHandle; FramesX: Integer=1; FramesY: Integer=1); virtual; abstract;
function GetOpenGLFrameCount(ATexture: TBGLTextureHandle): integer; virtual; abstract;
function GetEmptyTexture: TBGLTextureHandle; virtual; abstract;
procedure FreeOpenGLTexture(ATexture: TBGLTextureHandle); virtual; abstract;
procedure UpdateGLResampleFilter(ATexture: TBGLTextureHandle; AFilter: TOpenGLResampleFilter); virtual; abstract;
function GetUseGradientColors: boolean; virtual;
procedure SetUseGradientColors(AValue: boolean); virtual;
procedure DoDrawTriangleOrQuad(const {%H-}Points: array of TPointF;
const {%H-}APointsZ: array of Single; const {%H-}APoints3D: array of TPoint3D_128;
const {%H-}ANormals3D: array of TPoint3D_128; const {%H-}TexCoords: array of TPointF;
const {%H-}AColors: array of TColorF); virtual;
procedure DoStretchDraw(x,y,w,h: single; AColor: TBGRAPixel); virtual; abstract;
procedure DoStretchDrawAngle(x,y,w,h,angleDeg: single; rotationCenter: TPointF; AColor: TBGRAPixel); virtual; abstract;
procedure DoDrawAffine(Origin, HAxis, VAxis: TPointF; AColor: TBGRAPixel); virtual; abstract;
function NewEmpty: TBGLCustomTexture; virtual; abstract;
function NewFromTexture(ATexture: TBGLTextureHandle; AWidth,AHeight: integer): TBGLCustomTexture; virtual; abstract;
procedure NotifyInvalidFrameSize; virtual;
procedure NotifyErrorLoadingFile({%H-}AFilename: string); virtual;
procedure Init(ATexture: TBGLTextureHandle; AWidth,AHeight: integer; AOwned: boolean); virtual;
function Duplicate: TBGLCustomTexture; virtual;
procedure FreeMemoryOnDestroy; virtual;
procedure InitEmpty;
procedure InitFromData(ARGBAData: PLongWord; AllocatedWidth,AllocatedHeight, ActualWidth,ActualHeight: integer; RGBAOrder: boolean);
procedure InitFromStream(AStream: TStream);
public
destructor Destroy; override;
constructor Create; overload;
constructor Create(ATexture: TBGLTextureHandle; AWidth,AHeight: integer); overload;
constructor Create(ARGBAData: PLongWord; AllocatedWidth,AllocatedHeight, ActualWidth,ActualHeight: integer; RGBAOrder: boolean = true); overload;
constructor Create(AFPImage: TFPCustomImage); overload;
constructor Create(ABitmap: TBitmap); overload;
constructor Create(AWidth, AHeight: integer; Color: TColor); overload;
constructor Create(AWidth, AHeight: integer; Color: TBGRAPixel); overload;
constructor Create(AFilenameUTF8: string); overload;
constructor Create(AFilenameUTF8: string; AWidth,AHeight: integer; AResampleFilter: TResampleFilter); overload;
constructor Create(AStream: TStream); overload;
procedure ToggleFlipX; virtual; abstract;
procedure ToggleFlipY; virtual; abstract;
procedure ToggleMask; virtual;
function FilterBlurMotion({%H-}ARadius: single; {%H-}ABlurType: TRadialBlurType; {%H-}ADirection: TPointF): IBGLTexture; virtual;
function FilterBlurRadial({%H-}ARadius: single; {%H-}ABlurType: TRadialBlurType): IBGLTexture; virtual;
procedure SetFrameSize(x,y: integer);
procedure Update(ARGBAData: PLongWord; AllocatedWidth, AllocatedHeight, ActualWidth,ActualHeight: integer; RGBAOrder: boolean = true);
procedure SetFrame(AIndex: integer);
procedure SetGradientColors(ATopLeft, ATopRight, ABottomRight, ABottomLeft: TBGRAPixel);
procedure FreeMemory;
procedure Bind({%H-}ATextureNumber: integer); virtual;
procedure Draw(x,y: single; AAlpha: byte = 255); overload;
procedure Draw(x,y: single; AColor: TBGRAPixel); overload;
procedure Draw(x,y: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop; AAlpha: byte = 255); overload;
procedure Draw(x,y: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure StretchDraw(x,y,w,h: single; AAlpha: byte = 255); overload;
procedure StretchDraw(x,y,w,h: single; AColor: TBGRAPixel); overload;
procedure StretchDraw(x,y,w,h: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop; AAlpha: byte = 255); overload;
procedure StretchDraw(x,y,w,h: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure DrawAngle(x,y,angleDeg: single; const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AAlpha: byte = 255); overload;
procedure DrawAngle(x,y,angleDeg: single; const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AColor: TBGRAPixel); overload;
procedure DrawAngle(x,y,angleDeg: single; AAlpha: byte = 255); overload;
procedure DrawAngle(x,y,angleDeg: single; AColor: TBGRAPixel); overload;
procedure DrawAngle(x,y,angleDeg: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop; AAlpha: byte = 255); overload;
procedure DrawAngle(x,y,angleDeg: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AAlpha: byte = 255); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AColor: TBGRAPixel); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; AAlpha: byte = 255); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; AColor: TBGRAPixel); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout = tlTop; AAlpha: byte = 255); overload;
procedure StretchDrawAngle(x,y,w,h,angleDeg: single; AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel); overload;
procedure DrawAffine(const Origin, HAxis, VAxis: TPointF; AAlpha: byte = 255); overload;
procedure DrawAffine(const Origin, HAxis, VAxis: TPointF; AColor: TBGRAPixel); overload;
procedure DrawAffine(x,y: single; const AMatrix: TAffineMatrix; AAlpha: byte = 255); overload;
procedure DrawAffine(x,y: single; const AMatrix: TAffineMatrix; AColor: TBGRAPixel); overload;
procedure DrawTriangle(const APoints: array of TPointF; const ATexCoords: array of TPointF); overload;
procedure DrawTriangle(const APoints: array of TPointF; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawTriangle(const APoints: array of TPointF; const APointsZ: array of Single; const ATexCoords: array of TPointF); overload;
procedure DrawTriangle(const APoints: array of TPointF; const APointsZ: array of Single; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawTriangle(const APoints3D: array of TPoint3D_128; const ATexCoords: array of TPointF); overload;
procedure DrawTriangle(const APoints3D: array of TPoint3D_128; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawTriangle(const APoints3D: array of TPoint3D_128; const ANormals3D: array of TPoint3D_128; const ATexCoords: array of TPointF); overload;
procedure DrawTriangle(const APoints3D: array of TPoint3D_128; const ANormals3D: array of TPoint3D_128; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawQuad(const APoints: array of TPointF; const ATexCoords: array of TPointF); overload;
procedure DrawQuad(const APoints: array of TPointF; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawQuad(const APoints: array of TPointF; const APointsZ: array of Single; const ATexCoords: array of TPointF); overload;
procedure DrawQuad(const APoints: array of TPointF; const APointsZ: array of Single; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawQuad(const APoints3D: array of TPoint3D_128; const ATexCoords: array of TPointF); overload;
procedure DrawQuad(const APoints3D: array of TPoint3D_128; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
procedure DrawQuad(const APoints3D: array of TPoint3D_128; const ANormals3D: array of TPoint3D_128; const ATexCoords: array of TPointF); overload;
procedure DrawQuad(const APoints3D: array of TPoint3D_128; const ANormals3D: array of TPoint3D_128; const ATexCoords: array of TPointF; const AColors: array of TColorF); overload;
property Width: integer read GetWidth;
property Height: integer read GetHeight;
property FrameCount: integer read GetFrameCount;
property Frame[AIndex: integer]: IBGLTexture read GetFrame;
property FrameWidth: integer read GetFrameWidth;
property FrameHeight: integer read GetFrameHeight;
property FlipX: IBGLTexture read GetFlipX;
property FlipY: IBGLTexture read GetFlipY;
property Mask: IBGLTexture read GetMask;
property Handle: TBGLTextureHandle read GetOpenGLTexture;
property ResampleFilter: TOpenGLResampleFilter read GetResampleFilter write SetResampleFilter;
property BlendMode: TOpenGLBlendMode read GetOpenGLBlendMode write SetOpenGLBlendMode;
property GradientColors: boolean read GetUseGradientColors write SetUseGradientColors;
end;
{ Abstract class for a frame buffer in OpenGL }
TBGLCustomFrameBuffer = class
protected
FCanvas: pointer;
function GetTexture: IBGLTexture; virtual; abstract;
function GetHandle: pointer; virtual; abstract;
function GetMatrix: TAffineMatrix; virtual; abstract;
function GetHeight: integer; virtual; abstract;
function GetProjectionMatrix: TMatrix4D; virtual; abstract;
function GetWidth: integer; virtual; abstract;
procedure SetMatrix(AValue: TAffineMatrix); virtual; abstract;
procedure SetProjectionMatrix(AValue: TMatrix4D); virtual; abstract;
public
procedure UseOrthoProjection; overload; virtual;
procedure UseOrthoProjection(AMinX,AMinY,AMaxX,AMaxY: single); overload; virtual;
function MakeTextureAndFree: IBGLTexture; virtual;
procedure SetCanvas(ACanvas: Pointer); //for internal use
property Matrix: TAffineMatrix read GetMatrix write SetMatrix;
property ProjectionMatrix: TMatrix4D read GetProjectionMatrix write SetProjectionMatrix;
property Width: integer read GetWidth;
property Height: integer read GetHeight;
property Handle: pointer read GetHandle;
property Texture: IBGLTexture read GetTexture;
end;
type
TBGLBitmapAny = class of TBGLCustomBitmap;
TBGLTextureAny = class of TBGLCustomTexture;
var
BGLBitmapFactory : TBGLBitmapAny;
BGLTextureFactory: TBGLTextureAny;
function OrthoProjectionToOpenGL(AMinX,AMinY,AMaxX,AMaxY: Single): TMatrix4D;
function GetPowerOfTwo( Value : Integer ) : Integer;
implementation
uses BGRAFilterScanner;
procedure TBGLCustomFrameBuffer.UseOrthoProjection;
begin
ProjectionMatrix := OrthoProjectionToOpenGL(0,0,Width,Height);
end;
procedure TBGLCustomFrameBuffer.UseOrthoProjection(AMinX, AMinY, AMaxX, AMaxY: single);
begin
ProjectionMatrix := OrthoProjectionToOpenGL(AMinX,AMinY,AMaxX,AMaxY);
end;
function TBGLCustomFrameBuffer.MakeTextureAndFree: IBGLTexture;
begin
result := nil;
raise exception.create('Not implemented');
end;
procedure TBGLCustomFrameBuffer.SetCanvas(ACanvas: Pointer);
begin
FCanvas := ACanvas;
end;
function OrthoProjectionToOpenGL(AMinX, AMinY, AMaxX, AMaxY: Single): TMatrix4D;
var sx,sy: single;
begin
sx := 2/(AMaxX-AMinX);
sy := 2/(AMaxY-AMinY);
result[1,1] := sx; result[2,1] := 0; result[3,1] := 0; result[4,1] := -1 - AMinX*sx;
result[1,2] := 0; result[2,2] := -sy; result[3,2] := 0; result[4,2] := 1 + AMinY*sy;
result[1,3] := 0; result[2,3] := 0; result[3,3] := -1; result[4,3] := 0;
result[1,4] := 0; result[2,4] := 0; result[3,4] := 0; result[4,4] := 1;
end;
function GetPowerOfTwo( Value : Integer ) : Integer;
begin
Result := Value - 1;
Result := Result or ( Result shr 1 );
Result := Result or ( Result shr 2 );
Result := Result or ( Result shr 4 );
Result := Result or ( Result shr 8 );
Result := Result or ( Result shr 16 );
Result := Result + 1;
end;
{ TBGLCustomTexture }
function TBGLCustomTexture.GetFlipX: IBGLTexture;
begin
result := Duplicate;
result.ToggleFlipX;
end;
function TBGLCustomTexture.GetFlipY: IBGLTexture;
begin
result := Duplicate;
result.ToggleFlipY;
end;
function TBGLCustomTexture.GetFrame(AIndex: integer): IBGLTexture;
var fc: integer;
begin
fc := GetFrameCount;
if fc <= 1 then
result := self
else
begin
if (AIndex < 1) or (AIndex > fc) then
result := NewEmpty
else
begin
result := Duplicate;
result.SetFrame(AIndex);
end;
end;
end;
function TBGLCustomTexture.GetFrameCount: integer;
begin
result := GetOpenGLFrameCount(FOpenGLTexture);
end;
function TBGLCustomTexture.GetFrameHeight: integer;
begin
result := FFrameHeight;
end;
function TBGLCustomTexture.GetFrameWidth: integer;
begin
result := FFrameWidth;
end;
function TBGLCustomTexture.GetHeight: integer;
begin
result := FHeight;
end;
function TBGLCustomTexture.GetMask: IBGLTexture;
begin
result := Duplicate;
result.ToggleMask;
end;
function TBGLCustomTexture.GetOpenGLBlendMode: TOpenGLBlendMode;
begin
result := FBlendMode;
end;
function TBGLCustomTexture.GetOpenGLTexture: TBGLTextureHandle;
begin
result := FOpenGLTexture;
end;
function TBGLCustomTexture.GetUseGradientColors: boolean;
begin
result := FUseGradientColor;
end;
function TBGLCustomTexture.GetWidth: integer;
begin
result := FWidth;
end;
function TBGLCustomTexture.GetImageCenter: TPointF;
begin
result := FImageCenter;
end;
procedure TBGLCustomTexture.SetImageCenter(const AValue: TPointF);
begin
FImageCenter := AValue;
end;
function TBGLCustomTexture.GetResampleFilter: TOpenGLResampleFilter;
begin
result := FResampleFilter;
end;
procedure TBGLCustomTexture.SetOpenGLBlendMode(AValue: TOpenGLBlendMode);
begin
FBlendMode := AValue;
end;
procedure TBGLCustomTexture.SetResampleFilter(AValue: TOpenGLResampleFilter);
begin
if AValue <> FResampleFilter then
begin
FResampleFilter:= AValue;
UpdateGLResampleFilter(FOpenGLTexture, AValue);
end;
end;
class function TBGLCustomTexture.SupportsBGRAOrder: boolean;
begin
result := false;
end;
procedure TBGLCustomTexture.SetUseGradientColors(AValue: boolean);
begin
FUseGradientColor := AValue;
end;
procedure TBGLCustomTexture.DoDrawTriangleOrQuad(
const Points: array of TPointF; const APointsZ: array of Single;
const APoints3D: array of TPoint3D_128;
const ANormals3D: array of TPoint3D_128; const TexCoords: array of TPointF;
const AColors: array of TColorF);
begin
raise Exception.Create('Not implemented');
end;
procedure TBGLCustomTexture.ToggleMask;
begin
FIsMask := not FIsMask;
end;
function TBGLCustomTexture.FilterBlurMotion(ARadius: single; ABlurType: TRadialBlurType;
ADirection: TPointF): IBGLTexture;
begin
result := nil;
raise exception.Create('Not implemented');
end;
function TBGLCustomTexture.FilterBlurRadial(ARadius: single; ABlurType: TRadialBlurType): IBGLTexture;
begin
result := nil;
raise exception.Create('Not implemented');
end;
procedure TBGLCustomTexture.Update(ARGBAData: PLongWord; AllocatedWidth,
AllocatedHeight, ActualWidth, ActualHeight: integer; RGBAOrder: boolean);
begin
UpdateOpenGLTexture(FOpenGLTexture, ARGBAData, AllocatedWidth, AllocatedHeight, ActualWidth,ActualHeight,RGBAOrder);
ComputeOpenGLFramesCoord(FOpenGLTexture, round(FWidth/FFrameWidth),round(FWidth/FFrameHeight));
FWidth := ActualWidth;
FHeight := ActualHeight;
FImageCenter := PointF(FWidth*0.5,FHeight*0.5);
end;
procedure TBGLCustomTexture.SetFrame(AIndex: integer);
begin
if (AIndex >= 1) and (AIndex <= GetFrameCount) then
begin
FFrame := AIndex;
FWidth := FFrameWidth;
FHeight:= FFrameHeight;
FImageCenter := PointF(FWidth*0.5,FHeight*0.5);
end;
end;
procedure TBGLCustomTexture.SetGradientColors(ATopLeft, ATopRight,
ABottomRight, ABottomLeft: TBGRAPixel);
begin
FGradTopLeft := ATopLeft;
FGradTopRight := ATopRight;
FGradBottomLeft := ABottomLeft;
FGradBottomRight := ABottomRight;
GradientColors := true;
end;
procedure TBGLCustomTexture.FreeMemory;
begin
if FOpenGLTextureOwned then
begin
FreeOpenGLTexture(FOpenGLTexture);
FOpenGLTexture := GetEmptyTexture;
FOpenGLTextureOwned := false;
end;
end;
procedure TBGLCustomTexture.Bind(ATextureNumber: integer);
begin
raise Exception.Create('Not implemented');
end;
procedure TBGLCustomTexture.NotifyInvalidFrameSize;
begin
//
end;
procedure TBGLCustomTexture.NotifyErrorLoadingFile(AFilename: string);
begin
//
end;
procedure TBGLCustomTexture.Init(ATexture: TBGLTextureHandle; AWidth,
AHeight: integer; AOwned: boolean);
begin
FOpenGLTexture:= ATexture;
FWidth := AWidth;
FHeight := AHeight;
FImageCenter := PointF(FWidth*0.5,FHeight*0.5);
FFrame:= 0;
FFrameWidth := AWidth;
FFrameHeight := AHeight;
FIsMask:= false;
FOpenGLTextureOwned := AOwned;
end;
function TBGLCustomTexture.Duplicate: TBGLCustomTexture;
begin
result := NewFromTexture(FOpenGLTexture, FWidth, FHeight);
result.FFrame := FFrame;
result.FFrameWidth := FFrameWidth;
result.FFrameHeight := FFrameHeight;
result.FIsMask := FIsMask;
result.FResampleFilter := FResampleFilter;
result.FGradTopLeft := FGradTopLeft;
result.FGradTopRight := FGradTopRight;
result.FGradBottomRight := FGradBottomRight;
result.FGradBottomLeft := FGradBottomLeft;
result.FUseGradientColor := FUseGradientColor;
result.FBlendMode := FBlendMode;
end;
procedure TBGLCustomTexture.FreeMemoryOnDestroy;
begin
FreeMemory;
end;
procedure TBGLCustomTexture.InitEmpty;
begin
Init(GetEmptyTexture,0,0,False);
end;
procedure TBGLCustomTexture.InitFromData(ARGBAData: PLongWord;
AllocatedWidth, AllocatedHeight, ActualWidth, ActualHeight: integer;
RGBAOrder: boolean);
var tex: TBGLTextureHandle;
MaxTexSize: integer;
begin
MaxTexSize := GetOpenGLMaxTexSize;
if ( AllocatedWidth > MaxTexSize ) or ( AllocatedHeight > MaxTexSize ) or
(AllocatedWidth <= 0) or (AllocatedHeight <= 0) then
InitEmpty
else
begin
tex := CreateOpenGLTexture(ARGBAData,AllocatedWidth,AllocatedHeight,ActualWidth,ActualHeight,RGBAOrder);
FResampleFilter := orfLinear;
ComputeOpenGLFramesCoord(tex);
Init(tex,ActualWidth,ActualHeight,True);
end;
end;
procedure TBGLCustomTexture.InitFromStream(AStream: TStream);
var bmp: TBGLCustomBitmap;
begin
bmp := nil;
try
bmp := BGLBitmapFactory.Create(AStream);
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then bmp.SwapRedBlue;
InitFromData(PLongWord(bmp.Data), bmp.AllocatedWidth,bmp.AllocatedHeight, bmp.Width,bmp.Height,TBGRAPixel_RGBAOrder or not SupportsBGRAOrder);
except
InitEmpty;
end;
bmp.Free;
end;
destructor TBGLCustomTexture.Destroy;
begin
FreeMemoryOnDestroy;
inherited Destroy;
end;
constructor TBGLCustomTexture.Create;
begin
InitEmpty;
end;
constructor TBGLCustomTexture.Create(ATexture: TBGLTextureHandle; AWidth,
AHeight: integer);
begin
Init(ATexture, AWidth,AHeight, False);
end;
constructor TBGLCustomTexture.Create(ARGBAData: PLongWord; AllocatedWidth,
AllocatedHeight, ActualWidth, ActualHeight: integer; RGBAOrder: boolean);
begin
InitFromData(ARGBAData,AllocatedWidth,AllocatedHeight,ActualWidth,ActualHeight,RGBAOrder);
end;
constructor TBGLCustomTexture.Create(AFPImage: TFPCustomImage);
var bmp: TBGLCustomBitmap;
begin
if (AFPImage is TBGRACustomBitmap) and
(AFPImage.Width = GetPowerOfTwo(AFPImage.Width)) and
(AFPImage.Height = GetPowerOfTwo(AFPImage.Height)) then
begin
with TBGRACustomBitmap(AFPImage) do
begin
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then SwapRedBlue;
if LineOrder = riloBottomToTop then VerticalFlip;
InitFromData(PLongWord(Data), Width,Height, Width,Height, TBGRAPixel_RGBAOrder or not SupportsBGRAOrder);
if LineOrder = riloBottomToTop then VerticalFlip;
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then SwapRedBlue;
end;
end else
begin
bmp := BGLBitmapFactory.Create(AFPImage);
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then bmp.SwapRedBlue;
InitFromData(PLongWord(bmp.Data), bmp.AllocatedWidth,bmp.AllocatedHeight, bmp.Width,bmp.Height, TBGRAPixel_RGBAOrder or not SupportsBGRAOrder);
bmp.Free;
end;
end;
constructor TBGLCustomTexture.Create(ABitmap: TBitmap);
var bmp: TBGLCustomBitmap;
begin
bmp := BGLBitmapFactory.Create(ABitmap);
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then bmp.SwapRedBlue;
InitFromData(PLongWord(bmp.Data), bmp.AllocatedWidth,bmp.AllocatedHeight, bmp.Width,bmp.Height, TBGRAPixel_RGBAOrder or not SupportsBGRAOrder);
bmp.Free;
end;
constructor TBGLCustomTexture.Create(AWidth, AHeight: integer; Color: TColor);
var bmp: TBGLCustomBitmap;
begin
bmp := BGLBitmapFactory.Create(AWidth,AHeight,Color);
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then bmp.SwapRedBlue;
InitFromData(PLongWord(bmp.Data), bmp.AllocatedWidth,bmp.AllocatedHeight, bmp.Width,bmp.Height, TBGRAPixel_RGBAOrder or not SupportsBGRAOrder);
bmp.Free;
end;
constructor TBGLCustomTexture.Create(AWidth, AHeight: integer;
Color: TBGRAPixel);
var bmp: TBGLCustomBitmap;
begin
bmp := BGLBitmapFactory.Create(AWidth,AHeight,Color);
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then bmp.SwapRedBlue;
InitFromData(PLongWord(bmp.Data), bmp.AllocatedWidth,bmp.AllocatedHeight, bmp.Width,bmp.Height, TBGRAPixel_RGBAOrder or not SupportsBGRAOrder);
bmp.Free;
end;
constructor TBGLCustomTexture.Create(AFilenameUTF8: string);
var bmp: TBGLCustomBitmap;
begin
bmp := nil;
try
bmp := BGLBitmapFactory.Create(AFilenameUTF8, True);
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then bmp.SwapRedBlue;
InitFromData(PLongWord(bmp.Data), bmp.AllocatedWidth,bmp.AllocatedHeight, bmp.Width,bmp.Height, TBGRAPixel_RGBAOrder or not SupportsBGRAOrder);
except
InitEmpty;
NotifyErrorLoadingFile(AFilenameUTF8);
end;
bmp.Free;
end;
constructor TBGLCustomTexture.Create(AFilenameUTF8: string; AWidth,
AHeight: integer; AResampleFilter: TResampleFilter);
var bmp, temp: TBGLCustomBitmap;
begin
bmp := nil;
try
bmp := BGLBitmapFactory.Create(AFilenameUTF8, True);
if (bmp.Width <> AWidth) or (bmp.Height <> AHeight) then
begin
if AResampleFilter = rfBox then
temp := bmp.Resample(AWidth,AHeight,rmSimpleStretch) as TBGLCustomBitmap
else
begin
bmp.ResampleFilter := AResampleFilter;
temp := bmp.Resample(AWidth,AHeight) as TBGLCustomBitmap;
end;
bmp.Free;
bmp := temp;
temp := nil;
end;
if not TBGRAPixel_RGBAOrder and not SupportsBGRAOrder then bmp.SwapRedBlue;
InitFromData(PLongWord(bmp.Data), bmp.AllocatedWidth,bmp.AllocatedHeight, bmp.Width,bmp.Height, TBGRAPixel_RGBAOrder);
except
InitEmpty;
NotifyErrorLoadingFile(AFilenameUTF8);
end;
bmp.Free;
end;
constructor TBGLCustomTexture.Create(AStream: TStream);
begin
InitFromStream(AStream);
end;
procedure TBGLCustomTexture.SetFrameSize(x, y: integer);
begin
if (FWidth = 0) or (FHeight = 0) then exit;
if (x <= 0) or (y <= 0) or (x > FWidth) or (y > FHeight) then
begin
NotifyInvalidFrameSize;
exit;
end;
ComputeOpenGLFramesCoord(FOpenGLTexture, FWidth div x,FHeight div y);
FFrameWidth:= x;
FFrameHeight:= y;
end;
procedure TBGLCustomTexture.Draw(x, y: single; AAlpha: byte);
begin
DoStretchDraw(x,y,FWidth,FHeight,BGRA(255,255,255,AAlpha));
end;
procedure TBGLCustomTexture.Draw(x, y: single; AColor: TBGRAPixel);
begin
DoStretchDraw(x,y,FWidth,FHeight,AColor);
end;
procedure TBGLCustomTexture.Draw(x, y: single; AHorizAlign: TAlignment;
AVertAlign: TTextLayout; AAlpha: byte);
begin
Draw(x,y, AHorizAlign, AVertAlign, BGRA(255,255,255,AAlpha));
end;
procedure TBGLCustomTexture.Draw(x, y: single; AHorizAlign: TAlignment;
AVertAlign: TTextLayout; AColor: TBGRAPixel);
begin
StretchDraw(x,y, FWidth,FHeight, AHorizAlign,AVertAlign, AColor);
end;
procedure TBGLCustomTexture.StretchDraw(x, y, w, h: single; AAlpha: byte);
begin
DoStretchDraw(x,y,w,h, BGRA(255,255,255,AAlpha));
end;
procedure TBGLCustomTexture.StretchDraw(x, y, w, h: single;
AColor: TBGRAPixel);
begin
DoStretchDraw(x,y,w,h,AColor);
end;
procedure TBGLCustomTexture.StretchDraw(x, y, w, h: single;
AHorizAlign: TAlignment; AVertAlign: TTextLayout; AAlpha: byte);
begin
StretchDraw(x,y,w,h, AHorizAlign,AVertAlign, BGRA(255,255,255,AAlpha));
end;
procedure TBGLCustomTexture.StretchDraw(x, y, w, h: single;
AHorizAlign: TAlignment; AVertAlign: TTextLayout; AColor: TBGRAPixel);
begin
case AHorizAlign of
taCenter: DecF(x, w*0.5);
taRightJustify: DecF(x, w-1);
end;
case AVertAlign of
tlCenter: DecF(y, h*0.5);
tlBottom: DecF(y, h);
end;
DoStretchDraw(x,y,w,h,AColor);
end;
procedure TBGLCustomTexture.DrawAngle(x, y, angleDeg: single;
const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AAlpha: byte);
begin
StretchDrawAngle(x,y,FWidth,FHeight,angleDeg,imageCenter,ARestoreOffsetAfterRotation,BGRA(255,255,255,AAlpha));
end;
procedure TBGLCustomTexture.DrawAngle(x, y, angleDeg: single;
const imageCenter: TPointF; ARestoreOffsetAfterRotation: boolean; AColor: TBGRAPixel);
begin
StretchDrawAngle(x,y,FWidth,FHeight,angleDeg,imageCenter,ARestoreOffsetAfterRotation,AColor);
end;
procedure TBGLCustomTexture.DrawAngle(x, y, angleDeg: single; AAlpha: byte);
begin
StretchDrawAngle(x,y, FWidth,FHeight, angleDeg, AAlpha);
end;
procedure TBGLCustomTexture.DrawAngle(x, y, angleDeg: single; AColor: TBGRAPixel);
begin
StretchDrawAngle(x,y, FWidth,FHeight, angleDeg, AColor);
end;