BGRABitmap

Unit BGRAOpenGLType

Description
Uses
Classes, Interfaces, Objects and Records
Functions and Procedures
Types
Constants
Variables

Description

Basic types used with OpenGL

Uses

Overview

Classes, Interfaces, Objects and Records

Name Description
Interface IBGLFont Interface for a font drawn on OpenGL canvas
Interface IBGLTexture Interface for a texture in OpenGL (stored in VRAM)
Class TBGLCustomBitmap Abstract RGBA bitmap that can be used with OpenGL by converting it into a texture
Class TBGLCustomFont Abstract class for a font drawn on OpenGL canvas
Class TBGLCustomFrameBuffer Abstract class for a frame buffer in OpenGL
Class TBGLCustomTexture Abstract class for a texture in OpenGL (stored in VRAM)

Functions and Procedures

function GetPowerOfTwo( Value : Integer ) : Integer;
function OrthoProjectionToOpenGL(AMinX,AMinY,AMaxX,AMaxY: Single): TMatrix4D;

Types

TBGLBitmapAny = class of TBGLCustomBitmap;
TBGLTextureAny = class of TBGLCustomTexture;
TBGLTextureHandle = type Pointer;
TFaceCulling = BGRABitmapTypes.TFaceCulling;
TOpenGLBlendMode = (...);
TOpenGLPrimitive = (...);
TOpenGLResampleFilter = (...);
TWaitForGPUOption = (...);

Constants

fcKeepCCW = BGRABitmapTypes.fcKeepCCW;
fcKeepCW = BGRABitmapTypes.fcKeepCW;
fcNone = BGRABitmapTypes.fcNone;

Variables

BGLBitmapFactory: TBGLBitmapAny;
BGLTextureFactory: TBGLTextureAny;

Description

Functions and Procedures

function GetPowerOfTwo( Value : Integer ) : Integer;

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function OrthoProjectionToOpenGL(AMinX,AMinY,AMaxX,AMaxY: Single): TMatrix4D;

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Types

TBGLBitmapAny = class of TBGLCustomBitmap;

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TBGLTextureAny = class of TBGLCustomTexture;

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TBGLTextureHandle = type Pointer;

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TFaceCulling = BGRABitmapTypes.TFaceCulling;

Enumerates the modes of face culling in rendering. Face culling is a technique used to determine which faces of a polygon are visible and should be rendered

TOpenGLBlendMode = (...);

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Values
  • obmNormal
  • obmAdd
  • obmMultiply
TOpenGLPrimitive = (...);

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Values
  • opPoints
  • opLineStrip
  • opLineLoop
  • opLines
  • opTriangleStrip
  • opTriangleFan
  • opTriangles
TOpenGLResampleFilter = (...);

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Values
  • orfBox
  • orfLinear
TWaitForGPUOption = (...);

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Values
  • wfgQueueAllCommands
  • wfgFinishAllCommands

Constants

fcKeepCCW = BGRABitmapTypes.fcKeepCCW;

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fcKeepCW = BGRABitmapTypes.fcKeepCW;

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fcNone = BGRABitmapTypes.fcNone;

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Variables

BGLBitmapFactory: TBGLBitmapAny;

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BGLTextureFactory: TBGLTextureAny;

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