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 bits used per pixel.

  BitOrder: TRawImageBitOrder;

Indicates the bit order for scanlines in the raw image data.

  ByteOrder: TRawImageByteOrder;

The LSB/MSB-first byte order for 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, usually 1, 0 when no mask.

  MaskShift: Byte;

The bit offset of the mask bit.

  MaskLineEnd: TRawImageLineEnd;

Alignment of Mask lines.

  MaskBitOrder: TRawImageBitOrder;

Bit order of the Mask.

  PaletteColorCount: Word;

Entries in the color palette, 0 when no palette.

  PaletteBitsPerIndex: Byte;

Bits per palette index, stored in the pixel data.

  PaletteShift: Byte;

Bit shift direction from least to most significant.

  PaletteLineEnd: TRawImageLineEnd;

Indicates the alignment or padding used at the end of a scanline in the raw image data.

  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_BPP1();

1-bit mono format.

  procedure Init_BPP16_R5G6B5();

16-bit format.

  procedure Init_BPP24_R8G8B8_BIO_TTB();

24-bit format with bits in RGB order from top to bottom.

  procedure Init_BPP24_R8G8B8_BIO_TTB_UpsideDown();

24-bit format with bits in RGB order from bottom to top.

  procedure Init_BPP32_A8R8G8B8_BIO_TTB();

32-bit format with an Alpha channel, bits in RGB order from top to bottom.

  procedure Init_BPP32_R8G8B8A8_BIO_TTB();

32-bit format with bits in RGB order plus an Alpha channel, ordered from top to bottom.

  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();

Gets the indices of channels in four-element array.

  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 is equal.

end;

TRawImageDescription

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

TRawImage

An uncompressed graphics image (bitmap).