As per the PNG format specification, the picture file ends with a IEND chunk which is constant with the following sequence:
00 00 00 00 49 45 4E 44 AE 42 60 82 | length | "IEND" | CRC | Any byte beyond this sequence is not part of PNG. When saving bitmaps as PNG, the stream was read one byte more than its actual width. This resulted in having the last byte of the serialized stream changing even when the bitmap isn't modified. Signed-off-by: Jean-Noel Avila <[email protected]> --- common/class_bitmap_base.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/common/class_bitmap_base.cpp b/common/class_bitmap_base.cpp index c563f1fc4..bd5159935 100644 --- a/common/class_bitmap_base.cpp +++ b/common/class_bitmap_base.cpp @@ -109,7 +109,7 @@ bool BITMAP_BASE::SaveData( FILE* aFile ) const char* begin = (char*) buffer->GetBufferStart(); int ii; - for( ii = 0; begin <= buffer->GetBufferEnd(); begin++, ii++ ) + for( ii = 0; begin < buffer->GetBufferEnd(); begin++, ii++ ) { if( ii >= 32 ) { @@ -140,7 +140,7 @@ void BITMAP_BASE::SaveData( wxArrayString& aPngStrings ) const char* begin = (char*) buffer->GetBufferStart(); wxString line; - for( int ii = 0; begin <= buffer->GetBufferEnd(); begin++, ii++ ) + for( int ii = 0; begin < buffer->GetBufferEnd(); begin++, ii++ ) { if( ii >= 32 ) { -- 2.10.1.753.gf3b52a7 _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
