コード例 #1
0
    private static void SetCommentExtension(byte[] gifBytes, ref int byteIndex, ref GifData gifData)
    {
        CommentExtension commentEx = new CommentExtension();

        // Extension Introducer(1 Byte)
        // 0x21
        commentEx.m_extensionIntroducer = gifBytes[byteIndex];
        byteIndex++;

        // Comment Label(1 Byte)
        // 0xfe
        commentEx.m_commentLabel = gifBytes[byteIndex];
        byteIndex++;

        // Block Size & Comment Data List
        while (true)
        {
            // Block Size(1 Byte)
            byte blockSize = gifBytes[byteIndex];
            byteIndex++;

            if (blockSize == 0x00)
            {
                // Block Terminator(1 Byte)
                break;
            }

            var commentDataBlock = new CommentExtension.CommentDataBlock();
            commentDataBlock.m_blockSize = blockSize;

            // Comment Data(n Byte)
            commentDataBlock.m_commentData = new byte[commentDataBlock.m_blockSize];
            for (int i = 0; i < commentDataBlock.m_commentData.Length; i++)
            {
                commentDataBlock.m_commentData[i] = gifBytes[byteIndex];
                byteIndex++;
            }

            if (commentEx.m_commentDataList == null)
            {
                commentEx.m_commentDataList = new List <CommentExtension.CommentDataBlock>();
            }
            commentEx.m_commentDataList.Add(commentDataBlock);
        }

        if (gifData.m_commentExList == null)
        {
            gifData.m_commentExList = new List <CommentExtension>();
        }
        gifData.m_commentExList.Add(commentEx);
    }
コード例 #2
0
    static void SetCommentExtension (byte[] gifBytes, ref int byteIndex, ref GifData gifData)
    {
        CommentExtension commentEx = new CommentExtension ();

        // Extension Introducer(1 Byte)
        // 0x21
        commentEx.extensionIntroducer = gifBytes[byteIndex];
        byteIndex++;

        // Comment Label(1 Byte)
        // 0xfe
        commentEx.commentLabel = gifBytes[byteIndex];
        byteIndex++;

        // Block Size & Comment Data List
        while (true) {
            // Block Size(1 Byte)
            byte blockSize = gifBytes[byteIndex];
            byteIndex++;

            if (blockSize == 0x00) {
                // Block Terminator(1 Byte)
                break;
            }

            var commentDataBlock = new CommentExtension.CommentDataBlock ();
            commentDataBlock.blockSize = blockSize;

            // Comment Data(n Byte)
            commentDataBlock.commentData = new byte[commentDataBlock.blockSize];
            for (int i = 0; i < commentDataBlock.commentData.Length; i++) {
                commentDataBlock.commentData[i] = gifBytes[byteIndex];
                byteIndex++;
            }

            if (commentEx.commentDataList == null) {
                commentEx.commentDataList = new List<CommentExtension.CommentDataBlock> ();
            }
            commentEx.commentDataList.Add (commentDataBlock);
        }

        if (gifData.commentExList == null) {
            gifData.commentExList = new List<CommentExtension> ();
        }
        gifData.commentExList.Add (commentEx);
    }