TRawImageDescription

type TRawImageDescription = object

  Format: TRawImageColorFormat;

An initialized image can contain color (RGBA) or monochrome pixels.

  Width: cardinal;

Width of the image in pixels

  Height: cardinal;

Height of the image in pixels.

  Depth: Byte;

Number of used bits per pixel

  BitOrder: TRawImageBitOrder;

[unusable by definition]

  ByteOrder: TRawImageByteOrder;

The LSB/MSB-first byte order of color data.

  LineOrder: TRawImageLineOrder;

The first stored line of pixels can represent the logical top or bottom of the displayed image.

  LineEnd: TRawImageLineEnd;

Alignment of the scanlines.

  BitsPerPixel: Byte;

Number of bits stored per pixel

  RedPrec: Byte;

Bits per pixel in the Red channel

  RedShift: Byte;

Bit offset of the Red channel in color data.

  GreenPrec: Byte;

Bits per pixel in the Green channel

  GreenShift: Byte;

Bit offset of the Green channel in color data.

  BluePrec: Byte;

Bits per pixel in the Blue channel

  BlueShift: Byte;

Bit offset of the Blue channel in color data.

  AlphaPrec: Byte;

Bits per pixel in the Alpha channel

  AlphaShift: Byte;

Bit offset of the Alpha channel in color data.

  MaskBitsPerPixel: Byte;

Bits per mask pixel, 0 when no mask is present.

  MaskShift: Byte;

The bit offset of the mask bit [if stored in a byte?]

  MaskLineEnd: TRawImageLineEnd;

Alignment of Mask lines.

  MaskBitOrder: TRawImageBitOrder;

Bit order of the Mask.

  PaletteColorCount: Word;

Number of entries in the color palette. 0 when no palette is present.

  PaletteBitsPerIndex: Byte;

Bits per palette index, stored in the pixel data[?]

  PaletteShift: Byte;

[useless by definition]

  PaletteLineEnd: TRawImageLineEnd;

Alignment of [what?]

  PaletteBitOrder: TRawImageBitOrder;

Bit order of the palette indices[?]

  PaletteByteOrder: TRawImageByteOrder;

Byte order of the palette indices[?]

  procedure Init;

Initialize the image descriptor to all zeroes.

  procedure Init_BPP24_B8G8R8_BIO_TTB();

Init for an unmasked 24 bit RGB image (LSB Blue).

  procedure Init_BPP24_B8G8R8_M1_BIO_TTB();

Init for a masked 24 bit RGB image (LSB Blue)

  procedure Init_BPP32_B8G8R8_BIO_TTB();

Init for an unmasked 32 bit RGB image (LSB blue)

  procedure Init_BPP32_B8G8R8_M1_BIO_TTB();

Init for a masked 32 bit RGB image (LSB blue)

  procedure Init_BPP32_B8G8R8A8_BIO_TTB();

Init for an unmasked 32 bit RGBA image (LSB blue)

  procedure Init_BPP32_B8G8R8A8_M1_BIO_TTB();

Init for a masked 32 bit RGBA image (LSB blue)

  function GetDescriptionFromMask;

Returns an monochrome image descriptor constructed from the Mask

  function GetDescriptionFromAlpha;

Returns an monochrome image descriptor constructed from the Alpha channel

  procedure GetRGBIndices();

  function BytesPerLine;

The number of bytes per scanline.

  function BitsPerLine;

The number of bits per scanline.

  function MaskBytesPerLine;

The number of bytes per Mask scanline.

  function MaskBitsPerLine;

The number of bits per Mask scanline.

  function AsString;

The image descriptor as a string.

  function IsEqual();

Compares with the given description, returns True if it's equal.

end;

TRawImageDescription

Descriptor object for the image format of devices and raw (uncompressed) image data

TRawImage

An uncompressed graphics image (bitmap)