//go:build !amd64 || !gc || purego

package chacha20poly1305

func (c *chacha20poly1305) seal(dst, nonce, plaintext, additionalData []byte) []byte {
	return c.sealGeneric(dst, nonce, plaintext, additionalData)
}

func (c *chacha20poly1305) open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
	return c.openGeneric(dst, nonce, ciphertext, additionalData)

			}
			if scenario.merr && err == nil {
				t.Fatalf("case %d expected err, not received", k)
			}
			for i := range scenario.dst {
				if scenario.dst[i] != scenario.res[i] {
					t.Fatalf("case %d: bad merge at %d got %d want %d",
						k, i, scenario.dst[i], scenario.res[i])
				}
			}
		}
	}

    public static int enc_uint16be( short s, byte[] dst, int di ) {
        dst[di++] = (byte)((s >> 8) & 0xFF);
        dst[di] = (byte)(s & 0xFF);
        return 2;
    }
    public static int enc_uint32be( int i, byte[] dst, int di ) {
        dst[di++] = (byte)((i >> 24) & 0xFF);
        dst[di++] = (byte)((i >> 16) & 0xFF);
        dst[di++] = (byte)((i >> 8) & 0xFF);
        dst[di] = (byte)(i & 0xFF);
        return 4;
    }

	// is:
	//
	// func (src *YCbCr) CopyToRGBA(dst *RGBA, dr, sr Rectangle) (effectiveDr, effectiveSr Rectangle)
	//
	// in the spirit of the built-in copy function for 1-dimensional slices,
	// that also allowed a CopyFromRGBA method if needed.

	x0 := (r.Min.X - dst.Rect.Min.X) * 4
	x1 := (r.Max.X - dst.Rect.Min.X) * 4
	y0 := r.Min.Y - dst.Rect.Min.Y
	y1 := r.Max.Y - dst.Rect.Min.Y
	switch src.SubsampleRatio {

    int writeSetupWireFormat( byte[] dst, int dstIndex ) {
        dst[dstIndex++] = subCommand;
        dst[dstIndex++] = (byte)0x00;
        // this says "Transaction priority" in netmon
        writeInt2( fid, dst, dstIndex );
        return 4;
    }
    int readSetupWireFormat( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }
    int writeParametersWireFormat( byte[] dst, int dstIndex ) {
        return 0;
    }

            // no password in tree connect
            passwordLength = 1;
        }

        dst[dstIndex++] = disconnectTid ? (byte)0x01 : (byte)0x00;
        dst[dstIndex++] = (byte)0x00;
        writeInt2( passwordLength, dst, dstIndex );
        return 4;
    }
    int writeBytesWireFormat( byte[] dst, int dstIndex ) {
        int start = dstIndex;

        dstIndex += 4;
        for ( int i = 0; i < 4; i++ ) {
            dst[ dstIndex++ ] = (byte) 0xFF;
        }
        SMBUtil.writeInt2(this.writeMode, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.remaining, dst, dstIndex);
        dstIndex += 2;
        dst[ dstIndex++ ] = (byte) 0x00;
        dst[ dstIndex++ ] = (byte) 0x00;

    static void writeInt2 ( int val, byte[] dst, int dstIndex ) {
        dst[ dstIndex++ ] = (byte) ( ( val >> 8 ) & 0xFF );
        dst[ dstIndex ] = (byte) ( val & 0xFF );
    }


    static void writeInt4 ( int val, byte[] dst, int dstIndex ) {
        dst[ dstIndex++ ] = (byte) ( ( val >> 24 ) & 0xFF );
        dst[ dstIndex++ ] = (byte) ( ( val >> 16 ) & 0xFF );
        dst[ dstIndex++ ] = (byte) ( ( val >> 8 ) & 0xFF );

// n <= len(src), If err == nil, n will be len(src). It calls Reset on t.
func Append(t Transformer, dst, src []byte) (result []byte, n int, err error) {
	if len(dst) == cap(dst) {
		n := len(src) + len(dst) // It is okay for this to be 0.
		b := make([]byte, n)
		dst = b[:copy(b, dst)]
	}
	return doAppend(t, len(dst), dst[:cap(dst)], src)
}

     */
    @Override
    public int encode ( byte[] dst, int dstIndex ) {
        int start = dstIndex;

        SMBUtil.writeInt4(this.capabilities, dst, dstIndex);
        dstIndex += 4;

        System.arraycopy(this.clientGuid, 0, dst, dstIndex, 16);
        dstIndex += 16;

        SMBUtil.writeInt2(this.securityMode, dst, dstIndex);
        dstIndex += 2;