Gorilla.Context.Buffers

Fields

• public FBOTextureMapClass : TFBOTextureMapClass
  
• protected FTargets :
  

Methods

• public procedure AddTexture  ( const  ATexture :  TTexture; const  ATarget :  TRenderTarget ) ;  virtual;
• public procedure RemoveTexture  ( const  ATarget :  TRenderTarget ) ;  abstract overload virtual;
• public procedure RemoveTexture  ( ATexture :  TTexture ) ;  overload virtual;
• public function TextureExists  ( const  ATarget :  TRenderTarget; ATexture :  TTexture )  : Boolean ;  virtual;
• public function GetTextureByTarget  ( const  ATarget :  TRenderTarget )  : TTexture ;  virtual;
• public procedure Clear  ( ) ;  virtual;
• public function Count  ( )  : Integer ;  virtual;
• public procedure RemoveAll  ( ) ;  virtual;

Fields

• public FrameBufferObjectClass : TFrameBufferObjectClass
  
• protected FHandle : Cardinal
  
• protected FContext : TContext3D
  
• protected FSize : TSize
  
• protected FDepthBuf : Cardinal
  
• protected FOwnsDepthBuf : Boolean
  
• protected FStencilBuf : Cardinal
  
• protected FRenderBuf : Cardinal
  
• protected FOwnsRenderBuf : Boolean
  
• protected FIsMultisampleBuffer : Boolean
  
• protected FMSValue : Integer
  
• protected FTextures : TFBOTextureMap
  

Methods

• public constructor Create  ( AContext :  TContext3D; AIsMultisampleBuffer :  Boolean  =  False ; AMultisample :  TMultisample  =  None ) ;
• public destructor Destroy  ( ) ;
• protected function IsValid  ( )  : Boolean ;  virtual;

  Checks if the opengles frame buffer was created and the handle is != 0.

• protected function Check  ( )  : Boolean ;  abstract virtual;

  Checks for errors inside of opengles.

• protected procedure DoCreateBuffer  ( ) ;  abstract virtual;

  Builds the real opengles frame buffer in the GPU.

• protected procedure DoDestroyBuffer  ( ) ;  abstract virtual;

  Destroys the real opengles frame buffer in GPU.

• public procedure Reset  ( ) ;  abstract virtual;

  Unattaches all attached textures and clears texture map.

• public procedure CheckMaxAttachments  ( const  ATarget :  TRenderTarget ) ;  abstract virtual;

  Checks if your GPU supports the intended attachment buffer

• public procedure AttachTexture  ( const  AContext :  TContext3D; const  ATexture :  TTexture; const  ATarget :  TRenderTarget ) ;  abstract virtual;

  Attaches a specific texture at a specific target in the frame buffer.

• public procedure DetachTexture  ( const  ATexture :  TTexture ) ;  virtual;

  Detach a specific texture from frame buffer

• public function GetTextureByRenderTarget  ( const  ATarget :  TRenderTarget )  : TTexture ;  virtual;

  Returns an attached texture by supplied render target. If no texture was attached to this render target, the method returns nil.

• public procedure CreateRenderBuffer  ( AWidth :  Integer; AHeight :  Integer ) ;  abstract virtual;

  Creates a new render buffer and attaches it to the specific frame buffer object.

• public procedure DestroyRenderBuffer  ( ) ;  abstract virtual;

  Destroys a created and attached render buffer from the specific frame buffer object.

• public procedure CreateDepthBuffer  ( AWidth :  Integer; AHeight :  Integer ) ;  abstract virtual;

  Creates a new depth buffer and links it with this frame buffer object.

• public procedure DestroyDepthBuffer  ( ) ;  abstract virtual;

  Detaches and destroys the linked depth buffer.

• public procedure AttachDepthBuffer  ( ABufId :  Cardinal; ASize :  TPoint ) ;  abstract virtual;

  Attaches an existing depth buffer by its handle and size.

• public procedure DetachDepthBuffer  ( ) ;  virtual;

  Detaches a previously attached depth buffer from this frame buffer object.

• public procedure Bind  ( AContext :  TContext3D ) ;  abstract virtual;

  Binding the framebuffer and returning the previously binded framebuffer.

• public procedure Unbind  ( AContext :  TContext3D ) ;  abstract virtual;

  Unbinding the framebuffer object to shader.

• public function RenderTargetToValue  ( const  ATarget :  TRenderTarget )  : Cardinal ;  class abstract virtual;
• public procedure Resize  ( AWidth :  Integer; AHeight :  Integer ) ;  abstract virtual;
• public procedure Prepare  ( const  ATargets :  TRenderTargets ) ;  abstract virtual;

  Prepare color render targets for rendering process. Depth and stencil buffer will automatically be filtered.

• public procedure Clear  ( const  ATarget :  TRenderTarget; const  AColor :  TAlphaColorF; const  ADepth :  Single; const  AStencil :  Cardinal; const  AForceDraw :  Boolean  =  False ) ;  overload virtual;

  Clearing a specific render target in framebuffer object.

• public procedure Clear  ( const  ATargets :  TRenderTargets; const  AColor :  TAlphaColorF; const  ADepth :  Single; const  AStencil :  Cardinal; const  AForceDraw :  Boolean  =  False ) ;  abstract overload virtual;

  Clearing a number of render targets in framebuffer object.

Properties

• public Handle : Cardinal

  Returns the internal framebuffer object handle by OpenGL.

  read FHandle
  
• public Context : TContext3D

  A context the framebuffer is working on.

  read FContext
  write FContext
  
• public IsMultisampleBuffer : Boolean

  Returns if the frame buffer object was created as multisample buffer.

  read FIsMultisampleBuffer
  
• public DepthBuf : Cardinal

  Returns the internal handle for an attached depth buffer.

  read FDepthBuf
  
• public RenderBuf : Cardinal

  Returns the internal handle for an attached render buffer.

  read FRenderBuf
  
• public Size : TSize

  Returns the framebuffer width and height, defined by the attached textures.

  read FSize
  
• public Textures : TFBOTextureMap

  Returns a map of attached textures to a specific render-target.

  read FTextures
  

Fields

• public BufferObjectClass : TBufferObjectClass
  
• protected FHandle : Cardinal
  
• protected FSize : NativeInt
  
• protected FUsage : TBufferUsage
  
• protected FTarget : TBufferBindingTarget
  
• protected FBinded : Boolean
  
• protected FBindingPoint : Cardinal
  
• protected FBlockIndex : Cardinal
  
• protected FLinked : Boolean
  

Methods

• public constructor Create  ( const  AUsage :  TBufferUsage; const  ATarget :  TBufferBindingTarget ) ;
• public destructor Destroy  ( ) ;
• public function Bind  ( )  : NativeInt ;  abstract virtual;
• public procedure Unbind  ( ) ;  abstract virtual;
• public procedure Push  ( const  AData :  Pointer; const  ASize :  NativeInt ) ;  abstract virtual;
• public function SynchronizedMap  ( const  AMode :  TBufferAccessMode )  : PPointer ;  abstract virtual;
• public procedure SynchronizedUnmap  ( ) ;  abstract virtual;
• public procedure Clear  ( ) ;  abstract virtual;
• public procedure LinkWithBindingPoint  ( const  ABindingPoint :  Cardinal; const  AErrorCheck :  Boolean ) ;  abstract virtual;
• public procedure LinkWithShaderProgram  ( const  AProgram :  TObject; const  ABlockName :  string; const  AData :  Pointer; const  ASize :  Cardinal; const  AErrorCheck :  Boolean ) ;  abstract virtual;
• public procedure Unlink  ( ) ;  virtual;

Properties

• public Handle : Cardinal
  read FHandle
  
• public Size : NativeInt
  read FSize
  
• public Usage : TBufferUsage
  read FUsage
  
• public Target : TBufferBindingTarget
  read FTarget
  

Fields

• protected FKind : TGorillaPrimitivesKind
  
• protected FLineWidth : Single
  
• protected FComponents :
  
• protected FCompressed :
  
• protected FStaticBuffer : TMeshBufferObject
  
• protected FTempMemStream : TMemoryStream
  

Methods

• public constructor Create  ( const  AStaticBuffer :  TMeshBufferObject ) ;
• public destructor Destroy  ( ) ;
• protected function BuildBufferObject  ( AIndex :  TMeshBufferComponent )  : TBufferObject ;
• protected function GetComponent  ( AIndex :  TMeshBufferComponent )  : TBufferObject ;
• protected function GetIsCompressed  ( AIndex :  TMeshBufferComponent )  : Boolean ;
• protected function GetCompressed  ( AIndex :  TMeshBufferComponent )  : TStream ;
• protected procedure SetCompressed  ( AIndex :  TMeshBufferComponent; AValue :  TStream ) ;
• public procedure AssignBufferObject  ( ABuffer :  TMeshBufferObject ) ;
• public procedure ClearAssignedBufferObject  ( ) ;
• public procedure PushData  ( const  AIndex :  TMeshBufferComponent; const  AData :  Pointer; const  ASize :  NativeInt ) ;  overload;
• public procedure PushData  ( const  AIndex :  TMeshBufferComponent; const  ABuffer :  TVertexBuffer ) ;  overload;
• public function Decompress  ( const  AIndex :  TMeshBufferComponent )  : TMemoryStream ;
• public function ComponentAvailable  ( const  AIndex :  TMeshBufferComponent )  : Boolean ;
• public function BindStaticVertices  ( )  : NativeInt ;

  bind the static mesh buffers

• public procedure UnbindStaticVertices  ( ) ;
• public function BindStaticIndices  ( )  : NativeInt ;
• public procedure UnbindStaticIndices  ( ) ;
• public procedure ClearAll  ( ) ;
• public function IsStaticBufferAvailable  ( )  : Boolean ;

Properties

• public Kind : TGorillaPrimitivesKind
  read FKind
  write FKind
  
• public LineWidth : Single
  read FLineWidth
  write FLineWidth
  
• public Components[Index] : TBufferObject
  read GetComponent
  
• public IsCompressed[Index] : Boolean
  read GetIsCompressed
  
• public Compressed[Index] : TStream
  read GetCompressed
  write SetCompressed
  
• public StaticBuffer : TMeshBufferObject
  read FStaticBuffer
  write FStaticBuffer