Read or write the bitmap's raw pixel bytes

pdf_bitmap_buffer() returns a raw vector of length stride * height containing the bitmap's pixel data exactly as PDFium stores it. pdf_bitmap_set_buffer() writes a raw vector of the same length into the bitmap (length is checked).

Usage

pdf_bitmap_buffer(bitmap)

pdf_bitmap_set_buffer(bitmap, bytes)

Arguments

bitmap

A pdfium_image_buffer.

bytes

For pdf_bitmap_set_buffer() — a raw vector of length stride * height.

Value

pdf_bitmap_buffer() returns a raw vector; pdf_bitmap_set_buffer() returns bitmap invisibly.

Details

The byte order depends on the format reported by pdf_bitmap_info(). For BGRA the i'th pixel at row r, col c is buf[stride * r + 4 * c + 1:4] == c(B, G, R, A).