blitUnsafe<S> abstract method

void blitUnsafe<S>(
  1. Buffer<S> from, {
  2. Rect? source,
  3. Pos? target,
  4. BlendMode blend = BlendMode.srcOver,
})

Blits, or copies with blending, the pixel data from a source buffer to this buffer.

If a source rectangle is provided, only the pixels within that rectangle are copied. If the rectangle is outside the bounds of the source buffer, the behavior is undefined.

If a target position is provided, the top-left corner of the source rectangle will be copied starting at that position. If there is not sufficient space in the target buffer, the behavior is undefined.

If a blend mode is provided, the pixels will be blended using that mode.

Example

final src = IntPixels(2, 2, data: Uint32List.fromList([
  0xFFFFFFFF, 0x00000000, //
  0x00000000, 0xFFFFFFFF, //
]));

final dst = IntPixels(3, 3);
dst.blitUnsafe(src);
dst.blitUnsafe(src, source: Rect.fromLTWH(1, 0, 1, 2));
dst.blitUnsafe(src, target: Pos(1, 1));
dst.blitUnsafe(src, source: Rect.fromLTWH(1, 0, 1, 2), target: Pos(1, 1));

Implementation

void blitUnsafe<S>(
  Buffer<S> from, {
  Rect? source,
  Pos? target,
  BlendMode blend = BlendMode.srcOver,
});