Module capture

Frame readback types and PNG encoding helpers. Swapchain readback, row padding, and PNG encoding for visual tests.

Structs

CaptureParams

Parameters for one capture readback.

CapturedFrame

A captured frame read back from a render target.

Enums

CapturedFrameFormat

Pixel format for captured frames.

Functions

bgra_to_rgba_in_place

Swaps R and B channels in-place (BGRA to RGBA).

bytes_per_row_padded_256

Returns a row byte length rounded up to wgpu’s 256-byte copy alignment.

encode_png_rgba

Encodes a tight RGBA8 buffer as PNG.

unpad_rows_rgba

Strips row padding from a mapped texture buffer into a tight row layout.