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Ana BobilloandMirco Miranda
5e406e76ba
Images are allocated without being initialized, so a reader must write every pixel of every line. The PCX reader did not always: - readImage2() and readImage4v2() decoded width / 4 and width / 2 bytes, so the last pixels of lines whose width is not a multiple of 4 (2 bits) or 2 (4 bits) were not set. They now decode every pixel. - With a BytesPerLine smaller than a line of pixels, readImage1(), readImage8() and readImage24() left the end of each line unset: such headers are now refused by isSupported(), which replaces the check readImage4() had. Added the read tests indexed2_w13.pcx and indexed4_w13.pcx, which fail without this change.
